Tunnel freezing hole inclination measuring platform

Abstract

The invention relates to the technical field of inclination detection, and discloses a tunnel freezing hole inclination measuring platform which comprises a platform arranged in a tunnel, an inner support concentric assembly, a scraping blade and a storage box. According to the tunnel freezing hole inclination measuring platform, through the inner supporting concentric assembly, accurate concentric positioning of the scraping plate and the freezing hole is achieved, and the detection accuracy is ensured; meanwhile, scraping blades with special angles on the surface of the scraping plate can effectively clean scraps and small stones on the inner wall of the freezing hole, so that the concentricity is prevented from being influenced by impurities, and the detection accuracy is ensured; besides, the scrapers can automatically collect cleaned chippings in the rotating process, when the storage box moves to the highest point, the cover plate is automatically opened to collect crushed materials, and when the storage box moves to the lowest point, the cover plate is automatically closed to prevent the chippings from sliding downwards to damage the angle sensor, the working efficiency is improved, equipment parts are protected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of inclination detection, and specifically relates to an inclinometer platform for tunnel freezing holes. Background Technique

[0002] The vertical freezing method for tunnel construction is a soil freezing reinforcement technology used in tunnel construction. It freezes the soil layer around the tunnel into a closed frozen soil body through artificial refrigeration methods to resist water and soil pressure and isolate groundwater, and carries out excavation and tunnel lining structure construction under the protection of the frozen soil body. During the construction of freezing holes, a drilling rig is needed to drill holes and install freezing pipes. At this time, the inclination detection of the freezing holes is particularly important.

[0003] It should be noted that after the construction of the tunnel freezing holes is completed, a large amount of impurities such as soil and sand will inevitably remain on the hole wall, and some hole walls will even be embedded with sharp small stones. At present, the industry generally inserts a test rod into the freezing hole. At this time, it cannot be guaranteed that the test rod and the freezing hole are in a concentric position, which may affect the detection accuracy. Moreover, the protruding objects such as small stones remaining on the hole wall will seriously interfere with the test rod, resulting in the test rod not being able to be in an ideal central position in the hole. Eventually, the collected data has a large error and cannot truly reflect the actual inclination state of the freezing hole, greatly affecting the accuracy and reliability of the inclinometer result; and when the test rod is inserted, the stones may fall off, and the fallen stones may cause harm to the angle sensor and affect the service life of the equipment.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] An inclinometer platform for tunnel freezing holes includes a platform placed inside the tunnel and an inner support concentric component.

[0007] A swing rod is rotatably installed on the platform, an insertion sleeve is sleeved on the swing rod, and the insertion sleeve is adapted to the freezing hole opened inside the tunnel. An angle sensor connected to the swing rod is installed on the platform;

[0008] The inner support concentric component includes a positioning disk rotatably inside the insertion sleeve and inserted with the swing rod. A spiral strip is opened on the positioning disk, and a push rod slides on the spiral strip. A scraper is installed on the push rod. The rotating insertion sleeve cooperates with the limited spiral strip to push the scraper to support against the inner side wall of the freezing hole;

[0009] The scraper surface is provided with a scraping blade, and the straight line where the scraping blade is located is not parallel to the axis of the sleeve, so that the debris on the inner wall of the freezing hole is cleaned and collected at the bottom of the scraper blade during the scraper's rotation and outward movement. A storage box is installed at the end of the scraper blade, and a cover is installed on the storage box, which automatically opens by gravity to collect the debris when it rotates to the highest point and automatically closes at the lowest point.

[0010] As a preferred embodiment of the present invention, four supporting legs are installed at the bottom of the platform, and an adjusting rod is movably inserted inside the supporting legs. A locking bolt is screwed into the side wall of the supporting leg, and the end of the locking bolt is squeezed on the side wall of the adjusting rod to lock the adjusting rod. A support plate is installed at the bottom of the adjusting rod through a universal joint, and cross ribs are installed between adjacent supporting legs.

[0011] As a preferred embodiment of the present invention, two pairs of slide rails are installed on the platform, slide seats are installed on the two pairs of slide rails, positioning bolts for locking the slide seats are installed on the slide seats, a connecting seat is installed on the top of the slide seat, the side walls of the slide seat are connected to the angle sensor housing, and a controller is installed on the side walls of the platform, and the controller is electrically connected to the angle sensor.

[0012] As a preferred embodiment of the present invention, a connecting plate is installed at one end of the rocker arm, a connecting block is installed on the back of the connecting plate, a shaft sleeve is installed at the end of the connecting block, the shaft sleeve and the connecting end of the angle sensor are connected to each other, and the rotation of the rocker arm drives the shaft sleeve and the connecting end of the angle sensor to rotate, which is used to detect the tilt angle.

[0013] As a preferred embodiment of the present invention, a force storage sleeve is installed on the connecting plate, a force storage rod is movably inserted inside the force storage sleeve, a baffle is slidably arranged inside the force storage sleeve, one end of the baffle is connected to the force storage rod, and a force storage spring is installed between the other end of the baffle and the end face of the force storage sleeve, the compression direction of the force storage spring and the moving direction of the force storage rod are on the same straight line, and the force storage spring is used to squeeze the force storage rod to drive the sleeve to slide outward.

[0014] As a preferred embodiment of the present invention, a side panel is installed on the end face of the sleeve, a guide ring is installed on the surface of the side panel, the guide ring is slidably connected to the end of the power storage rod, and several pairs of handles are installed on the side wall of the side panel, and anti-slip grooves are provided on the surface of the handles.

[0015] As a preferred embodiment of the present invention, a rectangular rod is installed on the end face of the positioning plate, and the rectangular rod is movably inserted in the end face of the rocker arm. The positioning plate is rotatably installed in a groove opened on the inner wall of the sleeve. A slider is slidably provided on the spiral strip, and the slider is connected to the push rod, and the push rod is movably inserted in the side wall of the sleeve.

[0016] As a preferred embodiment of the present invention, a sliding plate is installed on the side wall of the push rod. A positioning rod is movably installed through the sliding plate. One end of the positioning rod is installed on the side wall of the socket, and a positioning plate is installed at the other end of the positioning rod. A positioning spring is sleeved on the positioning rod. One end of the positioning spring is clamped on the positioning plate, and the other end of the positioning spring is clamped on the sliding plate.

[0017] As a preferred embodiment of the present invention, a temporary storage cavity is installed at the bottom of the scraping blade. A guiding plate is installed on the side wall of the temporary storage cavity. The guiding plate is used for temporarily storing crushed materials and guiding them into the temporary storage cavity.

[0018] As a preferred embodiment of the present invention, a through groove is provided on the storage box. A cover plate is rotatably installed on the through groove. A torsion spring is provided between the cover plate and the side wall of the storage box. The temporary storage cavity is connected to the through groove, and the outlet of the temporary storage cavity is smaller than the diameter of the through groove, so that the cover plate overlaps on the outlet of the temporary storage cavity, and inclined surfaces are provided on both sides of the outlet of the temporary storage cavity.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] The inclinometer platform for tunnel freezing holes of the present invention enables the scraping plate to achieve precise concentric positioning with the freezing hole through the inner support concentric component, ensuring the accuracy of detection. At the same time, the scraping blade with a special angle on the surface of the scraping plate can effectively clean the debris and small stones on the inner wall of the freezing hole, avoiding the influence of impurities on the concentricity and ensuring the detection accuracy. In addition, the scraping plate can automatically collect the debris cleaned during rotation. When the storage box moves to the highest point, the cover plate automatically opens to collect the crushed materials, and automatically closes at the lowest point to prevent the debris from sliding down and damaging the angle sensor, which not only improves the work efficiency, but also protects the equipment components and extends the service life of the equipment.

[0021] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0022] In the drawings:

[0023] Figure 1 is an overall structure diagram of an inclinometer platform for tunnel freezing holes;

[0024] Figure 2 is a bottom view of an inclinometer platform for tunnel freezing holes;

[0025] Figure 3 is a three-dimensional view of an inclinometer platform for tunnel freezing holes;

[0026] Figure 4 is a side view of an inclinometer platform for tunnel freezing holes;

[0027] Figure 5 is a part of an inclinometer platform for tunnel freezing holesFigure 1 ;

[0028] Figure 6 It is a sectional view of the energy storage sleeve of an inclinometer platform for tunnel freezing holes;

[0029] Figure 7 It is a sectional view of the socket of an inclinometer platform for tunnel freezing holes Figure 1 ;

[0030] Figure 8 It is a sectional view of the socket of an inclinometer platform for tunnel freezing holes Figure 2 ;

[0031] Figure 9 It is of an inclinometer platform for tunnel freezing holes Figure 8 The enlarged view of part A in it;

[0032] Figure 10 It is a partial Figure 2

[0033] Figure 11 It is a sectional view of the storage box of an inclinometer platform for tunnel freezing holes.

[0034] In the figure:

[0035] 1. Platform; 11. Support leg; 111. Adjusting rod; 112. Support plate; 113. Locking bolt; 114. Cross rib; 12. Slide seat; 121. Slide rail; 122. Positioning bolt; 13. Angle sensor; 131. Connecting seat; 132. Controller;

[0036] 2. Swing rod; 21. Connecting plate; 211. Connecting block; 212. Bush; 22. Socket; 221. Side plate; 222. Handle; 23. Energy storage sleeve; 231. Energy storage rod; 232. Guide ring; 233. Baffle; 234. Energy storage spring; 24. Freezing hole;

[0037] 3. Positioning disk; 31. Rectangular rod; 32. Spiral strip; 321. Slide block; 322. Push rod; 323. Slide plate; 324. Positioning rod; 325. Positioning plate; 326. Positioning spring; 33. Scraper; 331. Scraping edge; 332. Guide plate; 34. Storage box; 341. Through groove; 342. Cover plate; 343. Torsion spring; 344. Temporary storage cavity; 345. Inclined plane. Specific embodiments

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0039] Embodiment 1:

[0040] As shown Figures 1 to 11 in the figure, a tunnel freezing hole inclinometer platform includes a platform 1 placed inside the tunnel and an inner support concentric component.

[0041] A swing rod 2 is rotatably installed on the platform 1. A socket 22 is sleeved on the swing rod 2, and the socket 22 is adapted to a freezing hole 24 opened inside the tunnel. An angle sensor 13 connected to the swing rod 2 is installed on the platform 1;

[0042] The inner support concentric component includes a positioning disk 3 rotatably inside the socket 22 and inserted into the swing rod. A spiral strip 32 is provided on the positioning disk 3, and a push rod 322 slides on the spiral strip 32. A scraping plate 33 is installed on the push rod 322. The rotating socket 22 cooperates with the limited spiral strip 32 to push the scraping plate 33 to be internally supported on the inner side wall of the freezing hole 24;

[0043] A scraping edge 331 is provided on the surface of the scraping plate 33. The straight line where the scraping edge 331 is located is not parallel to the axis of the bushing 212, so that the inner wall of the freezing hole 24 is cleaned of debris during the rotation and outward movement of the scraping plate 33 and the debris is collected at the bottom of the scraping edge 331. A storage box 34 is installed at the end of the scraping edge 331, and a cover plate 342 that automatically opens by gravity to collect debris when it rotates to the highest point and automatically closes at the lowest point is installed on the storage box 34.

[0044] Through the above structural design, the tunnel freezing hole inclinometer platform of the present invention can automatically clean the debris on the inner wall of the freezing hole before inclinometer measurement, avoid measurement errors caused by debris accumulation, and significantly improve the accuracy of inclinometer data; at the same time, the automatic cleaning and collection function reduces manual intervention and reduces the impact of debris falling on the angle sensor 13.

[0045] As shown Figures 1 to 11 in the figure, in the specific implementation manner, four support legs 11 are installed at the bottom of the platform 1. An adjusting rod 111 is movably inserted inside the support leg 11. A locking bolt 113 is screwed on the side wall of the support leg 11, and the end of the locking bolt 113 presses against the side wall of the adjusting rod 111 for locking the adjusting rod 111. The bottom of the adjusting rod 111 is installed with a support plate 112 through a universal joint. A cross rib 114 is installed between adjacent support legs 11. This support structure design can quickly adapt to the complex terrain of the tunnel bottom surface. Through the cooperation of the adjusting rod and the universal joint support plate, the platform can be quickly leveled and stably supported; the setting of the cross rib enhances the overall anti-torsion and anti-seismic performance of the platform, ensures the stability of the platform during the inclinometer measurement, avoids measurement deviation caused by vibration, and guarantees the stability and reliability of the measurement work.

[0046] As shown Figures 1 to 11As shown, two pairs of slide rails 121 are mounted on the platform 1, and slide seats 12 are mounted on the two pairs of slide rails 121. Positioning bolts 122 for locking the slide seats 12 are mounted on the slide seats 12. A connecting seat 131 is mounted on the top of the slide seat 12. The side walls of the slide seat 12 are interconnected with the housing of the angle sensor 13. A controller 132 is mounted on the side wall of the platform 1, and the controller 132 is electrically connected to the angle sensor 13. The adjustable structure of the slide rails and slide seats can flexibly adapt to the measurement requirements of freezing holes with different spacing and positions, expanding the application range of the equipment. The integrated design of the angle sensor and controller realizes real-time data collection, transmission and processing, shortens the measurement cycle, and facilitates operators to quickly obtain accurate data, improving the timeliness and scientific nature of construction decisions.

[0047] Example 2:

[0048] The difference between Example 1 and this example is that: Figures 1 to 11 As shown, a connecting plate 21 is mounted on one end of the pendulum arm 2. A connecting block 211 is mounted on the back of the connecting plate 21. A sleeve 212 is mounted on the end of the connecting block 211. The sleeve 212 is connected to the connecting end of the angle sensor 13. Rotation of the pendulum arm 2 drives the connecting end of the sleeve 212 and the angle sensor 13 to detect the tilt angle. This connection structure, through the direct connection between the sleeve and the angle sensor, reduces transmission backlash, improves the sensitivity and response speed of angle detection, ensures that even small tilt changes are accurately captured, and further improves the accuracy of the inclinometer data.

[0049] like Figures 1 to 11 As shown, in a specific embodiment, a force storage sleeve 23 is mounted on the connecting plate 21. A force storage rod 231 is movably inserted into the force storage sleeve 23. A baffle 233 is slidably mounted inside the force storage sleeve 23. One end of the baffle 233 is connected to the force storage rod 231. A force storage spring 234 is mounted between the other end of the baffle 233 and the end surface of the force storage sleeve 23. The compression direction of the force storage spring 234 and the movement direction of the force storage rod 231 are both aligned. The force storage spring 234 is used to compress the force storage rod 231 to drive the sleeve 22 to slide outward. The force storage structure utilizes the principle of spring energy storage to achieve automatic insertion of the sleeve, reducing the difficulty of manual operation. It is particularly suitable for use in narrow and deep holes, where manual operation is difficult.

[0050] like Figures 1 to 11 As shown, the end face of the socket 22 is mounted with a side plate 221, which is fitted with a guide ring 232 that is slidably connected to the end of the power storage rod 231. Several pairs of handles 222 are mounted on the sidewalls of the side plate 221, each with anti-slip grooves. The handles and anti-slip grooves facilitate manual operation, enabling flexible switching between manual and automatic operation, and enhancing the convenience and safety of the device.

[0051] Example 3:

[0052] Based on Example 2, the differences in this example are as follows: As Figures 1 to 11 shown, a rectangular rod 31 is installed on the end face of the positioning disk 3. The rectangular rod 31 is movably inserted into the end face of the swing rod 2. The positioning disk 3 is rotatably installed in a groove formed in the inner side wall of the socket 22. A slider 321 is slidably arranged on the spiral strip 32. The positioning of the scraper is achieved through mechanical transmission between the positioning disk and the spiral strip structure. Compared with the traditional hydraulic or pneumatic positioning method, the structure is simple and compact, and the maintenance cost is low. At the same time, the mechanical transmission has high stability and can operate reliably in complex tunnel environments, ensuring the durability and reliability of the equipment.

[0053] As Figures 1 to 11 shown, in the specific implementation, a slide plate 323 is installed on the side wall of the push rod 322. A positioning rod 324 is movably penetrated through the slide plate 323. One end of the positioning rod 324 is installed on the side wall of the socket 22, and the other end of the positioning rod 324 is installed with a positioning plate 325. A positioning spring 326 is sleeved on the positioning rod 324. One end of the positioning spring 326 is clamped on the positioning plate 325, and the other end of the positioning spring 326 is clamped on the slide plate 323. The positioning spring and the slide plate structure provide a reset function for the push rod. When the inclinometer measurement work is completed, the push rod can automatically return to its original position, reducing manual reset operations and improving work efficiency.

[0054] As Figures 1 to 11 shown, further, a temporary storage cavity 344 is installed at the bottom of the scraping blade 331. A guiding plate 332 is installed on the side wall of the temporary storage cavity 344. The guiding plate 332 is used to temporarily store the broken materials and guide them into the temporary storage cavity 344. A through groove 341 is formed on the storage box 34. A cover plate 342 is rotatably installed on the through groove 341. A torsion spring 343 is arranged between the cover plate 342 and the side wall of the storage box 34. The temporary storage cavity 344 is connected to the through groove 341, and the outlet of the temporary storage cavity 344 is smaller than the diameter of the through groove 341, so that the cover plate 342 overlaps on the outlet of the temporary storage cavity 344, and inclined surfaces 345 are formed on both sides of the outlet of the temporary storage cavity 344. The design of the temporary storage cavity and the automatically opening and closing cover plate realizes the orderly collection and storage of the broken materials, avoiding the scattering and accumulation of the broken materials during the collection process. The inclined surface and the guiding plate structure optimize the flow path of the broken materials, ensuring that the broken materials efficiently enter the storage box, reducing cleaning residues, and further improving the cleanliness and automation degree of the equipment.

[0055] The implementation principle of a tunnel freezing hole inclinometer platform of the present invention is as follows:

[0056] At the construction site, after transporting the tunnel freezing hole inclinometer platform to the designated position, the platform erection begins. The four support legs 11 at the bottom of Platform 1 play a crucial role. The operator adjusts the adjusting rod 111 inside the support leg 11 and flexibly adjusts the height and levelness of Platform 1 according to the actual uneven terrain of the tunnel bottom surface. After adjusting to the appropriate position, tighten the locking bolt 113 on the side wall of the support leg 11 so that its end tightly presses against the side wall of the adjusting rod 111, thereby firmly locking the adjusting rod 111 to prevent loosening and displacement during subsequent work. The support plate 112 installed at the bottom of the adjusting rod 111 through a universal joint can automatically adjust the angle according to the ground shape, closely fit the complex terrain of the tunnel bottom surface, and provide a stable support foundation for Platform 1. The cross ribs 114 installed between adjacent support legs 11, like a reinforced skeleton, further enhance the overall structural strength and stability of Platform 1, effectively resisting the vibrations and external force disturbances that may occur during construction, and ensuring the stability of the platform during operation.

[0057] Two pairs of slide rails 121 and slide seats 12 installed on Platform 1 form an adjustable mounting structure. By loosening the positioning bolt 122 on the slide seat 12, the slide seat 12 can slide freely on the slide rail 121, facilitating the operator to flexibly adjust the position of the slide seat 12 according to actual measurement requirements. After adjustment in place, tighten the positioning bolt 122 to firmly fix the slide seat 12 on the slide rail 121. The connecting seat 131 at the top of the slide seat 12 is used to install relevant equipment components. The controller 132 installed on the side wall of Platform 1 is electrically connected to the angle sensor 13, building a bridge for subsequent data transmission and processing.

[0058] When it is necessary to measure the inclination of the freezing hole 24 inside the tunnel, the operator holds the handle 222 on the side plate 221 of the end face of the socket 22 and aligns the socket 22 with the freezing hole 24. At this time, the energy storage structure composed of the energy storage sleeve 23, the energy storage rod 231, the baffle 233, and the energy storage spring 234 comes into play. During transportation or idle state, the energy storage spring 234 is in a compressed state, with one end tightly against the baffle 233 and the other end against the end face of the energy storage sleeve 23. The compression direction of the energy storage spring 234 is in the same straight line as the moving direction of the energy storage rod 231, storing elastic potential energy. When the socket 22 approaches the freezing hole 24, the operator releases the handle 222, and the energy storage spring 234 quickly releases the elastic potential energy, pushing the baffle 233 to move, thereby driving the energy storage rod 231 to move. The energy storage rod 231 pushes the socket 22 to move, and finally the socket 22 is smoothly and powerfully pushed into the freezing hole 24.

[0059] After the socket 22 is in place, start the inner support concentric component. At this time, directly drive the socket 22 to rotate. The socket 22 drives the push rod 322 to rotate around the spiral strip 32 on the positioned positioning disk 3, and then the push rod 322 rotates and moves outward.

[0060] During the movement of the push rod 322, the slide plate 323 mounted on its side wall slides along the positioning rod 324. One end of the positioning rod 324 is fixed to the side wall of the socket 22, and a positioning plate 325 is installed at the other end. The positioning spring 326 sleeved on the positioning rod 324 plays a key role in assisting the reset.

[0061] During the movement of the scraper 33 towards the inner wall of the freezing hole 24, multiple push rods 322 and the scrapers 33 connected thereto move synchronously. Due to the spiral track design of the spiral strip 32 and the synchronous rotation relationship between the positioning disc 3 and the socket 22, when the multiple scrapers 33 move outwards, they can gradually fit the inner wall of the freezing hole 24 at the same speed and rhythm. Each scraper 33 exerts a uniform and appropriate pressure on the inner wall of the freezing hole 24, thereby realizing the concentric positioning of the scraper 33 and the freezing hole 24. This concentric positioning not only ensures that the scraper 33 is closely attached to the inner wall of the freezing hole 24, making the detection more accurate at this time, but also ensures the uniformity and efficiency of the subsequent scrap cleaning work.

[0062] The straight line where the scraping edge 331 on the surface of the scraper 33 is located is not parallel to the axis of the bushing 212. When the scraper 33 moves outwards along with the push rod 322 and rotates around the spiral strip 32 itself, a relative movement is generated between the scraping edge 331 and the inner wall of the freezing hole 24. Due to the special angle of the scraping edge 331, it can effectively scrape off the scraps on the inner wall of the freezing hole 24. The scraped scraps are gathered towards the bottom of the scraping edge 331 under the guidance of the scraping edge 331. The temporary storage cavity 344 installed at the end of the scraping edge 331 temporarily stores the scraps with the assistance of the guide plate 332. The shape and position of the guide plate 332 are carefully designed to guide the scraps to smoothly enter the interior of the temporary storage cavity 344 and prevent the scraps from spilling during the transmission process.

[0063] With the continuous movement of the push rod 322 and the movement of the scraper 33, the storage box 34 is also driven to move accordingly. When the storage box 34 moves to a specific position (the highest point), under the action of gravity, the cover plate 342 automatically opens against the resistance of the torsion spring 343 between the side wall of the storage box 34. At this time, the temporary storage cavity 344 is connected to the through groove 341 of the storage box 34, and the scraps in the temporary storage cavity 344 smoothly fall into the storage box 34 under the action of gravity. When the storage box 34 leaves this position and continues to move to the lowest point, the cover plate 342 automatically closes under the elastic force of the torsion spring 343, closing the storage box 34 to prevent the scraps from falling, realizing the automatic collection process of the scraps, without frequent manual operation, greatly improving the work efficiency and reducing the possible impact of the scraps on the slope detection.

[0064] After the above operation is completed, the swing rod 2 and the socket 22 are concentrically inserted into the freezing hole 24 at this time, and the swing rod 2 and the angle sensor 13 rotate. At this time, the rotation angle of the swing rod 2 is the slope of the freezing hole 24, and this slope can be captured by the angle sensor 13. The angle sensor 13 transmits the detected angle data to the controller 132 on the side wall of the platform 1 through electrical connection. After receiving the data, the controller 132 processes and analyzes it, and finally obtains the inclination of the freezing hole 24 and presents it to the operator in an intuitive way, providing accurate and reliable data support for subsequent tunnel construction, helping the construction personnel to adjust the construction plan in time, and ensuring the quality and safety of tunnel construction.

Claims

1. A tunnel freezing hole inclinometer platform, comprising a platform (1) placed inside the tunnel and an inner support concentric component, characterized in that: A swing rod (2) is rotatably installed on the platform (1). A socket sleeve (22) is sleeved on the swing rod (2), and the socket sleeve (22) is adapted to a freezing hole (24) opened inside the tunnel. An angle sensor (13) connected to the swing rod (2) is installed on the platform (1); The inner support concentric component includes a positioning disk (3) rotatably inside the socket sleeve (22) and inserted with the swing rod. A spiral strip (32) is opened on the positioning disk (3), and a push rod (322) slides on the spiral strip (32). A scraping plate (33) is installed on the push rod (322). The rotating socket sleeve (22) cooperates with the limited spiral strip (32) to push the scraping plate (33) to be internally supported on the inner side wall of the freezing hole (24); Scraping blades (331) are opened on the surface of the scraping plate (33). The straight line where the scraping blades (331) are located is not parallel to the axis of the bushing (212). So that during the rotation and outward movement of the scraping plate (33), the debris on the inner wall of the freezing hole (24) is cleaned and gathered at the bottom of the scraping blades (331). A storage box (34) is installed at the end of the scraping blades (331), and a cover plate (342) that automatically opens by gravity to collect debris when it rotates to the highest point and automatically closes at the lowest point is installed on the storage box (34).

2. The inclinometer platform for tunnel freezing holes according to claim 1, characterized in that, Four support legs (11) are installed at the bottom of the platform (1). An adjusting rod (111) is movably inserted inside the support legs (11). A locking bolt (113) is screwed on the side wall of the support legs (11). The end of the locking bolt (113) presses against the side wall of the adjusting rod (111) to lock the adjusting rod (111). The bottom of the adjusting rod (111) is installed with a support plate (112) through a universal joint. Cross ribs (114) are installed between adjacent support legs (11).

3. The inclinometer platform for tunnel freezing holes according to claim 1, wherein Two pairs of slide rails (121) are installed on the platform (1). Slide seats (12) are installed on the two pairs of slide rails (121). A positioning bolt (122) for locking the slide seat (12) is installed on the slide seat (12). A connecting seat (131) is installed on the top of the slide seat (12). The side wall of the slide seat (12) is connected to the housing of the angle sensor (13). A controller (132) is installed on the side wall of the platform (1). The controller (132) is electrically connected to the angle sensor (13).

4. A tunnel freezing hole inclinometer platform according to claim 1, characterized in that One end of the swing rod (2) is installed with a connecting plate (21). A connecting block (211) is installed on the back of the connecting plate (21). A bushing (212) is installed at the end of the connecting block (211). The connecting end of the bushing (212) is connected to the connecting end of the angle sensor (13). The rotation of the swing rod (2) drives the rotation of the connecting end of the bushing (212) and the angle sensor (13) to detect the inclination angle.

5. The inclinometer platform for tunnel freezing holes according to claim 4, characterized in that, A force storage sleeve (23) is installed on the connecting plate (21), a force storage rod (231) is movably inserted inside the force storage sleeve (23), a baffle (233) is slidably provided inside the force storage sleeve (23), one end of the baffle (233) is connected to the force storage rod (231), and a force storage spring (234) is installed between the other end of the baffle (233) and the end surface of the force storage sleeve (23), the compression direction of the force storage spring (234) and the moving direction of the force storage rod (231) are both on the same straight line, and the force storage spring (234) is used to squeeze the force storage rod (231) to drive the sleeve (22) to slide outward.

6. The inclinometer platform for tunnel freezing holes according to claim 5, characterized in that, The end surface of the sleeve (22) is provided with a side plate (221), the surface of the side plate (221) is provided with a guide ring (232), the guide ring (232) is slidably connected to the end of the power storage rod (231), and the side wall of the side plate (221) is provided with a plurality of pairs of handles (222), and the surface of the handles (222) is provided with anti-slip grooves.

7. The inclinometer platform for tunnel freezing holes according to claim 1, characterized in that, The end surface of the positioning plate (3) is provided with a rectangular rod (31), the rectangular rod (31) is movably plugged into the end surface of the rocker rod (2), the positioning plate (3) is rotatably installed in a groove provided on the inner side wall of the plug sleeve (22), a slider (321) is slidably provided on the spiral strip (32), the slider (321) and the push rod (322) are connected to each other, and the push rod (322) is movably plugged into the side wall of the plug sleeve (22).

8. The inclinometer platform for tunnel freezing holes according to claim 1, characterized in that, A slide plate (323) is installed on the side wall of the push rod (322), and a positioning rod (324) is movably installed on the slide plate (323). One end of the positioning rod (324) is installed on the side wall of the sleeve (22), and a positioning plate (325) is installed on the other end of the positioning rod (324). A positioning spring (326) is sleeved on the positioning rod (324), and one end of the positioning spring (326) is clamped on the positioning plate (325), and the other end of the positioning spring (326) is clamped on the slide plate (323).

9. The inclinometer platform for tunnel freezing holes according to claim 1, wherein, A temporary storage cavity (344) is installed at the bottom of the scraper blade (331), and a guide plate (332) is installed on the side wall of the temporary storage cavity (344). The guide plate (332) is used to temporarily store the scraps and guide them into the temporary storage cavity (344).

10. The inclinometer platform for tunnel freezing holes according to claim 9, characterized in that, The storage box (34) is provided with a through slot (341), a cover plate (342) is rotatably mounted on the through slot (341), a torsion spring (343) is provided between the cover plate (342) and the side wall of the storage box (34), the temporary storage cavity (344) is connected to the through slot (341), and the outlet of the temporary storage cavity (344) is smaller than the diameter of the through slot (341), so that the cover plate (342) overlaps the outlet of the temporary storage cavity (344), and inclined surfaces (345) are provided on both sides of the outlet of the temporary storage cavity (344).

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