Laser monitoring device for ground surface settlement of metro shield section

Abstract

The utility model relates to the technical field of settlement monitoring, in particular to a laser monitoring device for ground surface settlement of a subway shield section. According to the technical scheme, the device comprises a supporting seat, a mounting plate, a first frame, a supporting plate and a laser scanner, wherein a mounting nut is mounted in the supporting seat; a supporting screw rod is mounted in the mounting nut through a thread; a first frame is mounted on the top end face of the mounting plate, a second frame is mounted on the top end face of the first frame through limiting rods, limiting wheels are arranged on the bottom end face of the second frame, a supporting plate slidably sleeves the limiting rods, a laser scanner is arranged in the supporting plate, and a driving motor is mounted on the side end face of the first frame. And an output shaft of the driving motor is provided with an unwinding wheel, and the laser scanner is sleeved with a clamping frame. The ground surface settlement monitoring device meets ground surface settlement monitoring, can be adjusted and supported according to the condition of a foundation during monitoring, and prevents monitoring equipment from falling off to affect use during monitoring.

Description

TECHNICAL FIELD

[0001] The utility model relates to settlement monitoring technical field, concretely relates to a laser monitoring device of subway shield section ground surface settlement. BACKGROUND

[0002] With the continuous development of modern traffic, for the populous big city, subway shield technology is widely used for the construction of subway. But there are many problems in subway construction engineering, such as subway shield section ground surface settlement problem.

[0003] Through the search, patent application No. CN209166409U discloses a kind of laser monitoring device of subway shield section ground surface settlement, although the device is when using laser scanner to the height determination of walking trolley, and using the cooperation of guide bar and guide seat, the walking of trolley is guided, the height of trolley is determined to measure ground surface settlement, realize the purpose of rapid monitoring ground surface settlement, but the laser monitoring equipment is directly installed on foundation when the device is used, but the stability of foundation cannot be guaranteed, laser monitoring equipment is installed and is susceptible to the unevenness of foundation and causes deflection to influence detection result, and laser monitoring equipment also needs to be fixed and limited, to avoid direct placement and cause shaking and fall. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of laser monitoring device of subway shield section ground surface settlement, solves the problems raised in background art.

[0005] The technical problem solved by the utility model is as follows:

[0006] A kind of laser monitoring device of subway shield section ground surface settlement, including support seat, mounting plate, first frame, support plate and laser scanner, the support seat is installed with mounting nut in;

[0007] The mounting nut is installed with support screw in by thread;

[0008] The top end surface of mounting plate is installed with first frame, the top end surface of first frame is installed with second frame by limiting rod, and the bottom end surface of second frame is equipped with limiting wheel, the limiting rod is slidably sleeved with support plate, and laser scanner is equipped in support plate, the side end surface of first frame is installed with drive motor, and the output shaft of drive motor is equipped with unwinding wheel, the laser scanner is sleeved with clamping frame.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the top end surface of the support base is respectively provided with a transverse level and a longitudinal level, and the transverse level and the longitudinal level are four in total and are arranged in a rectangular array relative to the support base.

[0011] The beneficial effect of the further scheme is that:

[0012] The four transverse levels and longitudinal levels arranged in a rectangular array can accurately monitor the horizontal state of the support base from multiple dimensions. When installing the device, the construction personnel can quickly judge whether the support base is horizontal in the transverse and longitudinal directions by observing the bubble position of the level. This all-around horizontal monitoring greatly improves the efficiency and accuracy of device installation. In the subway shield construction environment, the ground may be uneven or slightly inclined due to construction, and the level can timely feedback these conditions, and the construction personnel can make fine adjustments to the support base accordingly to ensure that the laser beam emitted by the laser scanner always remains horizontal and accurately projects onto the monitoring area and the monitoring trolley used in cooperation to monitor, thereby ensuring the reliability of the monitoring data and reducing measurement errors caused by device inclination.

[0013] Further, the top end surface of the support screw is provided with a handle, and the bottom end surface of the support screw is welded with a support block.

[0014] The beneficial effect of the further scheme is that:

[0015] When adjusting the placement position of the support base according to the transverse level and the longitudinal level, the personnel can hold the handles of the four support screws to rotate the support screws, which can adjust the depth of the installation nut, so that the support screws contact the foundation through the support blocks to jack up the four corners of the support base, thereby adjusting the horizontal position of the support base.

[0016] Further, the rear end surface of the support base is welded with a connecting rod, the connecting rod is provided with a holding frame, and the bottom end surface of the support base is provided with a universal wheel.

[0017] The beneficial effect of the further scheme is that:

[0018] The universal wheel gives the laser monitoring device good mobility. During subway shield construction, the monitoring area may change as the construction progresses, and the construction personnel can easily move the device on the construction site by holding the holding frame and using the universal wheel.

[0019] Further, the installation plate is provided with a bolt through a thread, and the bolt is installed in the support base through a thread.

[0020] The beneficial effect of the further scheme is that:

[0021] In the device assembly stage, the construction personnel can screw the bolt into the corresponding threaded hole, realize the connection of the mounting plate and the support seat, and after the connection, the bolt can be reversed to disassemble the mounting plate, thereby meeting and replacing the maintenance in the later stage.

[0022] Further, the unwinding wheel is provided with a connecting belt, the connecting belt is limited by a limiting wheel, and one end of the connecting belt away from the unwinding wheel is installed on the support plate.

[0023] The beneficial effects of the above further scheme are:

[0024] When the driving motor operates, the unwinding wheel is driven to rotate, and the extension and retraction of the connecting belt are controlled. The limiting wheel plays a key guiding and limiting role, which ensures that the connecting belt is always in the correct position during movement, avoids deviation and winding, and ensures the smoothness and stability of the operation of the connecting belt. The connecting belt is connected with the support plate, so that the driving motor can control the lifting of the support plate. In actual monitoring, according to different monitoring needs, such as monitoring the surface subsidence of different depths of shield intervals or adjusting the height of the laser scanner due to the change of the construction site terrain, the driving motor can accurately control the rotation direction and the number of turns of the unwinding wheel, realize the precise adjustment of the height of the support plate, and make the laser scanner can work at the best height, so that the height adjustment of the laser scanner can better cooperate with the use of the monitoring trolley, improve the applicability of the monitoring device and the accuracy of the monitoring data.

[0025] Further, the bottom end face of the clamping frame is welded with a limiting screw rod, the limiting screw rod is sleeved in the support plate, and a limiting nut is installed on the limiting screw rod through threads.

[0026] The beneficial effects of the above further scheme are:

[0027] The use of limit screws and limit nuts provides a reliable fixing method for the laser scanner. During installation, workers insert the limit screw into the corresponding hole in the support plate and then tighten the limit nut to firmly fix the clamp to the support plate. This fixing method is not only simple to install but also provides a strong fixation. During monitoring, even under the influence of vibrations or other external forces at the construction site, the laser scanner remains stable without shaking or displacement, ensuring continuous and accurate laser beam emission for surface settlement monitoring and providing a solid guarantee for obtaining high-quality monitoring data. When maintenance or replacement of the laser scanner is required, unscrewing the limit nut allows for easy removal of the clamp and laser scanner from the support plate, improving equipment maintenance efficiency. Once fixed, the laser scanner can scan a trolley that needs to be measured. The trolley needs to be pre-positioned on the ground surface, and the scanning height can be adjusted according to the trolley to measure surface settlement, achieving rapid monitoring of surface settlement. Furthermore, the scanned data can be connected to a computer or mobile phone via wires and analyzed using pre-set software to monitor settlement.

[0028] This invention provides a laser monitoring device for surface settlement in subway shield tunnel sections. It has the following beneficial effects:

[0029] High installation accuracy: Four horizontal and vertical levels arranged in a rectangular array can accurately monitor the level of the support from multiple dimensions, allowing construction personnel to quickly judge and adjust, ensuring that the laser beam emitted by the laser scanner is always horizontal, guaranteeing reliable monitoring data and reducing measurement errors.

[0030] Easy to adjust: The support screw has a handle at the top and a support block at the bottom. Personnel can adjust the depth of the support screw into the installation nut by rotating the handle, and lift the four corners of the support base to achieve horizontal position adjustment.

[0031] High mobility and flexibility: The casters installed on the bottom of the support base give the device excellent mobility and flexibility. Combined with the grip frame on the rear end, construction personnel can easily push the device to move around the construction site and adapt to changes in the monitoring area as the construction progresses.

[0032] Easy assembly and maintenance: The mounting plate and support base are connected by bolts, which facilitates connection during the device assembly stage. The bolts can also be reversed for disassembly later to meet replacement and maintenance needs.

[0033] Precise height adjustment: The combination of drive motor, unwinding roller, connecting belt, limit roller and support plate allows for precise adjustment of the support plate height according to different monitoring needs, that is, the height of laser scanner, so that it can perform monitoring work at the optimal height, improving the applicability of the monitoring device and the accuracy of monitoring data.

[0034] Excellent stability: The combination of the limiting screw and the limiting nut provides a reliable fixing method for the laser scanner, making installation simple and secure. This ensures stable operation of the laser scanner during monitoring, continuously and accurately emitting laser beams. Simultaneously, it facilitates maintenance or replacement of the laser scanner, improving equipment maintenance efficiency. Furthermore, once fixed, it can be used in conjunction with a measurement trolley to quickly monitor surface subsidence, and the scanned data can be analyzed via software to monitor subsidence. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0036] In the attached diagram:

[0037] Figure 1 This is a front view schematic diagram of the present invention;

[0038] Figure 2 This is a rear view schematic diagram of the present invention;

[0039] Figure 3 This is a bottom view of the present invention;

[0040] Figure 4 This is an enlarged schematic diagram of the support plate of this utility model.

[0041] The attached diagram lists the components represented by each number as follows:

[0042] 1. Support base; 101. Casters; 102. Lateral level; 103. Longitudinal level; 104. Connecting rod; 105. Grip; 2. Mounting nut; 201. Support screw; 202. Support block; 3. Mounting plate; 301. First frame; 302. Second frame; 303. Limiting rod; 304. Bolt; 305. Unwinding wheel; 306. Drive motor; 307. Connecting belt; 308. Limiting wheel; 4. Support plate; 401. Laser scanner; 402. Clamp; 403. Limiting screw; 404. Limiting nut. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Please see Figures 1 to 4The embodiment provided by the utility model shows,

[0045] Embodiment one

[0046] A laser monitoring device for surface subsidence of a subway shield section, comprising a support base 1, a mounting plate 3, a first frame 301, a support plate 4 and a laser scanner 401, the support base 1 is internally provided with a mounting nut 2;

[0047] The support screw 201 is internally provided with a mounting nut 2 through screw threads;

[0048] The mounting plate 3 is internally provided with the first frame 301, the first frame 301 is internally provided with the second frame 302 through a limiting rod 303, the second frame 302 is internally provided with a limiting wheel 308, the support plate 4 is slidably connected to the limiting rod 303, the support plate 4 is internally provided with the laser scanner 401, the first frame 301 is internally provided with a driving motor 306, the driving motor 306 is internally provided with a pay-off wheel 305, the laser scanner 401 is internally provided with a clamping frame 402;

[0049] The support base 1 is internally provided with a horizontal transverse level 102 and a horizontal longitudinal level 103, the horizontal transverse level 102 and the horizontal longitudinal level 103 are provided with four, the horizontal transverse level 102 and the horizontal longitudinal level 103 are arranged in a rectangular array, the horizontal transverse level 102 and the horizontal longitudinal level 103 can accurately monitor the horizontal state of the support base 1. When the device is installed, the construction personnel can quickly judge whether the support base 1 is horizontal in the horizontal and vertical directions by observing the bubble position of the level. This kind of horizontal monitoring can greatly improve the efficiency and accuracy of device installation. In the subway shield construction environment, the ground may be uneven or slightly inclined due to construction, the level can timely feedback these situations, the construction personnel can adjust the position of the support base 1 accordingly, so that the laser beam emitted by the laser scanner 401 can always remain horizontal and accurately project onto the monitoring area, and the monitoring trolley can be used for monitoring, so as to ensure the reliability of the monitoring data and reduce the measurement error caused by the inclination of the device;

[0050] The support screw 201 is internally provided with a handle, the support screw 201 is internally provided with a support block 202, the personnel can hold the handle of the support screw 201 to rotate the support screw 201 when adjusting the position of the support base 1 according to the horizontal transverse level 102 and the horizontal longitudinal level 103, the depth of the support screw 201 in the mounting nut 2 can be adjusted when the support screw 201 is rotated, the support screw 201 can contact the foundation through the support block 202 to lift the four corners of the support base 1, so as to adjust the horizontal position of the support base 1;

[0051] A connecting rod 104 is welded to the rear end face of the support base 1, and a gripping frame 105 is installed inside the connecting rod 104. A caster wheel 101 is installed on the bottom end face of the support base 1, providing the laser monitoring device with excellent mobility. During subway tunnel construction, the monitoring area may change continuously with the construction progress. Construction personnel can easily move the device on the construction site by gripping the gripping frame 105 and using the caster wheel 101.

[0052] A connecting belt 307 is provided on the unwinding reel 305. The connecting belt 307 is limited by a limiting wheel 308, and the end of the connecting belt 307 facing away from the unwinding reel 305 is mounted on the support plate 4. When the drive motor 306 operates, it drives the unwinding reel 305 to rotate, thereby controlling the unwinding and rewinding of the connecting belt 307. The limiting wheel 308 plays a crucial guiding and limiting role, ensuring that the connecting belt 307 is always in the correct position during movement, avoiding problems such as deviation and entanglement, and ensuring the smoothness and stability of the connecting belt 307's operation. The connecting belt 307 is connected to the support plate 4, enabling the drive motor 306 to control the raising and lowering of the support plate 4. In actual monitoring, depending on different monitoring needs, such as monitoring surface settlement in shield tunnel sections at different depths or adjusting the height of the laser scanner 401 due to changes in the terrain at the construction site, the drive motor 306 can precisely control the rotation direction and number of turns of the unwinding wheel 305 to achieve precise adjustment of the height of the support plate 4, allowing the laser scanner 401 to perform monitoring work at the optimal height. After the height of the laser scanner 401 is adjusted, it can be better used in conjunction with the monitoring trolley, improving the applicability of the monitoring device and the accuracy of the monitoring data.

[0053] Example 2

[0054] To prevent the laser equipment from being shaken and falling, thus affecting monitoring, for example, such as Figures 1 to 4 As shown, this utility model also includes: a support base 1, a mounting plate 3, a first frame 301, a support plate 4, and a laser scanner 401. A mounting nut 2 is installed inside the support base 1.

[0055] A support screw 201 is threadedly installed inside the mounting nut 2;

[0056] The top surface of the mounting plate 3 is equipped with a first frame 301. The top surface of the first frame 301 is equipped with a second frame 302 via a limiting rod 303. The bottom surface of the second frame 302 is provided with a limiting wheel 308. A support plate 4 is slidably sleeved on the limiting rod 303. A laser scanner 401 is provided inside the support plate 4. A drive motor 306 is installed on the side surface of the first frame 301. An unwinding wheel 305 is provided on the output shaft of the drive motor 306. A clamping frame 402 is sleeved on the laser scanner 401.

[0057] The mounting plate 3 is threaded with bolts 304, which are also threaded into the support base 1. During the assembly stage, the construction personnel can screw the bolts 304 into the corresponding threaded holes to connect the mounting plate 3 and the support base 1. After connection, the bolts 304 can be reversed to disassemble the mounting plate 3, thus meeting the requirements for later replacement and maintenance.

[0058] A limiting screw 403 is welded to the bottom end face of the clamping frame 402. The limiting screw 403 is sleeved inside the support plate 4, and a limiting nut 404 is threaded onto the limiting screw 403. The cooperation of the limiting screw 403 and the limiting nut 404 provides a reliable fixing method for the laser scanner 401. When installing the laser scanner 401, the construction personnel insert the limiting screw 403 into the corresponding hole in the support plate 4, and then tighten the limiting nut 404 to firmly fix the clamping frame 402 to the support plate 4. This fixing method is not only simple to install, but also provides a strong fixing effect. During the monitoring process, even if affected by vibration or other external forces at the construction site, the laser scanner 401 can remain stable without shaking or displacement, thus ensuring that the laser scanner 401 can continuously and accurately emit laser beams for surface subsidence monitoring, providing a solid guarantee for obtaining high-quality monitoring data. When maintenance or replacement of the laser scanner 401 is required, the limit nut 404 can be unscrewed to easily remove the clamp 402 and the laser scanner 401 from the support plate 4, improving the efficiency of equipment maintenance. After the laser scanner 401 is fixed, it can scan the trolley that needs to be measured. During scanning, the height of the trolley can be used to measure the ground subsidence, so as to achieve the purpose of rapid monitoring of ground subsidence. Moreover, the scanning data can be connected to the personnel's computer or mobile phone through the wire and analyzed by the software preset on the mobile phone or computer to monitor the subsidence.

[0059] Working principle:

[0060] Horizontal Adjustment and Support: The support base 1 serves as the foundation of the entire device. Its top surface features four horizontal levels 102 and a vertical level 103 arranged in a rectangular array for comprehensive monitoring of the support base 1's horizontal status. During installation, workers observe the positions of the level bubble on the level instruments to determine if the support base 1 is horizontally and vertically level.

[0061] An installation nut 2 is installed inside the support base 1, and a support screw 201 is threaded into the installation nut 2. When it is necessary to adjust the horizontal position of the support base 1, the construction worker holds the handle at the top of the support screw 201 and rotates it. The rotation of the support screw 201 adjusts the depth into the installation nut 2, and then the support block 202 contacts the foundation, lifting the four corners of the support base 1 to achieve the adjustment of the horizontal position.

[0062] Device movement: the rear end face of the support base 1 is welded with a connecting rod 104, the connecting rod 104 is installed with a holding frame 105, and the bottom end face is installed with universal wheels 101. In the subway shield construction, the monitoring area changes with the construction progress, the construction personnel holds the holding frame 105, and uses the universal wheels 101 to push the device to move flexibly in the construction site.

[0063] Component connection and assembly: the mounting plate 3 is connected with the support base 1 through bolts 304. When the device is assembled, the construction personnel screws the bolts 304 into the corresponding threaded holes to realize the connection of the mounting plate 3 and the support base 1; if replacement is needed in the later period, the mounting plate 3 can be disassembled by reversing the bolts 304.

[0064] Laser scanner 401 height adjustment: the top end face of the mounting plate 3 is installed with a first frame 301, the side end face of the first frame 301 is installed with a drive motor 306, and a pay-off wheel 305 is arranged on the output shaft of the drive motor 306. The connecting belt 307 on the pay-off wheel 305 is limited by the limiting wheel 308, and one end of the connecting belt 307 is installed on the support plate 4.

[0065] The drive motor 306 drives the pay-off wheel 305 to rotate to control the winding and unwinding of the connecting belt 307. The limiting wheel 308 ensures that the movement position of the connecting belt 307 is correct, avoiding deviation and winding. By accurately controlling the rotation direction and number of turns of the pay-off wheel 305, the drive motor 306 can realize precise adjustment of the height of the support plate 4, so as to adjust the height of the laser scanner 401 to adapt to different monitoring requirements.

[0066] Laser scanner 401 fixation and monitoring: the laser scanner 401 is sleeved in the clamping frame 402, the limiting screw 403 welded on the bottom end face of the clamping frame 402 is sleeved in the support plate 4, and is fixed through the limiting nut 404. During installation, the construction personnel inserts the limiting screw 403 into the corresponding hole in the support plate 4, and tightens the limiting nut 404 to firmly fix the clamping frame 402 and the laser scanner 401 on the support plate 4.

[0067] The fixed laser scanner 401 emits a laser beam to scan the preset measuring trolley on the ground, and cooperates with the trolley to measure the ground settlement. The scanning data is connected to the computer or mobile phone of the personnel through wires, and is analyzed by using the preset software to realize the monitoring of the ground settlement in the subway shield section.

[0068] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A laser monitoring device for surface settlement in a subway shield tunnel section, comprising a support base (1), a mounting plate (3), a first frame (301), a support plate (4), and a laser scanner (401), wherein a mounting nut (2) is installed inside the support base (1), characterized in that: The mounting nut (2) is threaded with a support screw (201); The top surface of the mounting plate (3) is equipped with a first frame (301), the top surface of the first frame (301) is equipped with a second frame (302) through a limiting rod (303), and the bottom surface of the second frame (302) is provided with a limiting wheel (308). A support plate (4) is slidably sleeved on the limiting rod (303), and a laser scanner (401) is provided inside the support plate (4). A drive motor (306) is installed on the side surface of the first frame (301), and an unwinding wheel (305) is provided on the output shaft of the drive motor (306). A clamping frame (402) is sleeved on the laser scanner (401).

2. The laser monitoring device for surface settlement in subway shield tunnel sections according to claim 1, characterized in that: The top surface of the support base (1) is equipped with a horizontal level (102) and a vertical level (103). There are four horizontal level (102) and four vertical level (103) in total, and the four horizontal level (102) and vertical level (103) are distributed in a rectangular array relative to the support base (1).

3. The laser monitoring device for surface settlement in a subway shield tunnel section according to claim 1, characterized in that: A handle is installed on the top surface of the support screw (201), and a support block (202) is welded to the bottom surface of the support screw (201).

4. The laser monitoring device for surface settlement in a subway shield tunnel section according to claim 2, characterized in that: A connecting rod (104) is welded to the rear end face of the support base (1), a gripping frame (105) is installed inside the connecting rod (104), and a caster wheel (101) is installed on the bottom end face of the support base (1).

5. The laser monitoring device for surface settlement in a subway shield tunnel section according to claim 1, characterized in that: The mounting plate (3) is threaded with bolts (304), and the bolts (304) are threaded into the support base (1).

6. The laser monitoring device for surface settlement in a subway shield tunnel section according to claim 1, characterized in that: The unwinding reel (305) is provided with a connecting belt (307), which is limited by a limiting wheel (308), and the end of the connecting belt (307) away from the unwinding reel (305) is installed on the support plate (4).

7. The laser monitoring device for surface settlement in a subway shield tunnel section according to claim 1, characterized in that: The bottom end face of the clamping frame (402) is welded with a limiting screw (403), the limiting screw (403) is sleeved in the support plate (4), and a limiting nut (404) is installed on the limiting screw (403) by thread.

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