Tunnel segment grouting device

Abstract

The utility model provides a tunnel segment grouting device which comprises a frame, a stirring hopper arranged above the frame, an air pump arranged above the stirring hopper, the stirring hopper is used for manufacturing grouting materials, the air pump is used for conveying the grouting materials into a grouting gun in a pressing mode, the grouting gun comprises a gun stock, a gun barrel is arranged on one side of the gun stock, and a feeding valve is arranged between the gun barrel and the gun stock. A pull rod is arranged on one side of the charging valve, a sliding seat is arranged between the pull rod and the gun stock, the pull rod is in sliding connection with the sliding seat, a material limiting knob is arranged at one end of the pull rod, a valve element is arranged at the other end of the pull rod, and the valve element is in sliding connection with the charging valve. Scientific basis is provided for tunnel segment maintenance, and the problems that a traditional grouting device does not have temperature monitoring and metering functions and cannot monitor key parameters in the grouting process in real time are solved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment maintenance, and in particular to a tunnel segment grouting device. Background Technology

[0002] In tunnel engineering, the maintenance and grouting of tunnel segments are crucial for ensuring the safety of the tunnel structure and extending its service life. Traditional tunnel segment grouting methods mainly rely on manual operation, which has many shortcomings, such as low construction efficiency, lax quality control, and numerous safety hazards. Especially in complex underground environments, construction personnel need to frequently enter and exit the tunnel and manually record construction data, which not only increases the workload but may also lead to inaccurate or missing data records.

[0003] While existing grouting equipment and technology have improved construction efficiency to some extent, they still lack standardized and systematic solutions. Traditional grouting devices typically do not have temperature monitoring and metering functions, making it impossible to monitor key parameters in the grouting process in real time, which makes it difficult to guarantee grouting quality. Utility Model Content

[0004] The main purpose of this invention is to provide a tunnel segment grouting device that solves the problem that traditional grouting devices do not have temperature monitoring and metering functions and cannot monitor key parameters in the grouting process in real time.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a tunnel segment grouting device, the grouting device includes a frame, a mixing hopper is provided above the frame, an air pump is provided above the mixing hopper, the mixing hopper is used to make grouting material, and the air pump is used to pressurize the grouting material into the grouting gun.

[0006] The grouting gun includes a gunstock, a gun barrel on one side of the gunstock, a feeding valve between the gun barrel and the gunstock, a pull rod on one side of the feeding valve, a sliding seat between the pull rod and the gunstock, the pull rod and the sliding seat are slidably connected, a material limiting knob is provided at one end of the pull rod, and a valve core is provided at the other end, the valve core is slidably connected to the feeding valve.

[0007] In the preferred embodiment, the material limiting knob is threadedly connected to the pull rod, and the material limiting knob is used to control the movement stroke of the valve core.

[0008] In the preferred embodiment, a feeding hole is provided above the feeding valve, and the feeding hole is connected to the inside of the feeding valve. The feeding hole is used to connect to the grouting device.

[0009] A sealing joint is also provided around the feeding hole.

[0010] In the preferred embodiment, a grouting switch is provided below the pull rod, and the grouting switch controls the opening and closing of the valve core by swinging the pull rod.

[0011] In the preferred embodiment, a swingable limiting plate is also provided below the grouting switch. The limiting plate is hinged to the gunstock, and a coil spring is provided between the limiting plate and the gunstock.

[0012] The barrel is surrounded by a barrel sleeve, and there is filler between the barrel sleeve and the barrel. The filler is used to reduce the rate of temperature loss of the slurry inside the barrel.

[0013] The front end of the barrel is also equipped with a retractable measuring cylinder, which is slidably connected to the barrel sleeve. The measuring cylinder is used to measure the depth of the muzzle inserted into the tube segment.

[0014] In the preferred embodiment, the stock is also equipped with a data processing module, and a second interface is located below the data processing module for electrical connection with a portable power supply.

[0015] This utility model provides a tunnel segment grouting device with the following advantages: It adopts an intelligent grouting device with integrated temperature monitoring and metering functions, which can monitor key parameters such as temperature, pressure and flow rate in real time during the grouting process, ensure grouting quality, reduce human error, enhance construction safety, and realize automatic data recording and analysis, providing a scientific basis for tunnel segment maintenance, thereby effectively extending the service life of the tunnel and ensuring structural safety. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the assembly connection of this utility model;

[0018] Figure 2 This is a schematic diagram of the workflow of this utility model kit;

[0019] Figure 3 This is a schematic diagram of the HUD display of this utility model;

[0020] Figure 4 This is a wireframe diagram of the HUD display of this utility model;

[0021] Figure 5 This is an axonometric view of the safety helmet of this utility model;

[0022] Figure 6 This is a top-view sectional view of the safety helmet of this utility model;

[0023] Figure 7 This is a front view of the safety helmet of this utility model;

[0024] Figure 8 This is a side sectional view of the safety helmet of this utility model;

[0025] Figure 9 This is an isometric view of the portable power supply of this utility model;

[0026] Figure 10 This is an isometric view of the grouting gun of this utility model;

[0027] Figure 11 This is an isometric view of the grouting gun of this utility model from another direction;

[0028] Figure 12 This is a cross-sectional view of the grouting gun of this utility model;

[0029] Figure 13 This is a front view of the grouting device of this utility model.

[0030] In the diagram: Smart helmet 1; Transparent face mask 101; Hinge 102; Side chin guard 103; Infrared camera 104; Heat dissipation vent 105; Air duct 106; Miniature fan 107; HUD projector 108; Hinge bracket 109; Back and side panels 110; High-definition camera 111; Projection support plate 112; Top cover 113; Pocket net 114; First interface 115; Lighting lamp 116; RFID tag 117; Portable power supply 2; Waist belt bracket 201; Cooling fan 202; Solid-state battery 203; 204. Ventilated waist belt; 205. Fastening buckle; 3. Grouting gun; 301. Gun stock; 302. Sliding seat; 303. Sealing joint; 304. Feeding hole; 305. Grouting switch; 306. Limiting plate; 307. Feeding valve; 308. Gun barrel sleeve; 309. Material limiting knob; 310. Gun barrel; 311. Measuring cylinder; 312. Data processing module; 313. Second interface; 314. Pull rod; 315. Valve core; 316. Filler material; 4. Grouting device; 401. Frame; 402. Mixing hopper; 403. Air pump; 5. Grouting hole; 6. Grout outlet. Detailed Implementation

[0031] Example 1

[0032] like Figure 1-13 As shown, a tunnel segment grouting device 4 includes a frame 401, a mixing hopper 402 is provided above the frame 401, and an air pump 403 is provided above the mixing hopper 402. The mixing hopper 402 is used to prepare grouting material, and the air pump 403 is used to pressurize the grouting material into the grouting gun 3.

[0033] The grouting gun 3 includes a gunstock 301, a gun barrel 310 on one side of the gunstock 301, a feeding valve 307 between the gun barrel 310 and the gunstock 301, a pull rod 314 on one side of the feeding valve 307, a sliding seat 302 between the pull rod 314 and the gunstock 301, the pull rod 314 and the sliding seat 302 are slidably connected, a limiting knob 309 is provided at one end of the pull rod 314, and a valve core 315 is provided at the other end, the valve core 315 is slidably connected to the feeding valve 307.

[0034] In the preferred embodiment, the limiting knob 309 is threadedly connected to the pull rod 314, and the limiting knob 309 is used to control the movement stroke of the valve core 315.

[0035] In the preferred embodiment, a feeding hole 304 is provided above the feeding valve 307. The feeding hole 304 is connected to the inside of the feeding valve 307 and is used to connect to the grouting device 4.

[0036] A sealing joint 303 is also provided around the feeding hole 304.

[0037] In the preferred embodiment, a grouting switch 305 is provided below the pull rod 314. The grouting switch 305 controls the opening and closing of the valve core 315 by swinging the pull rod 314.

[0038] In the preferred embodiment, a swingable limiting plate 306 is also provided below the grouting switch 305. The limiting plate 306 is hinged to the gunstock 301, and a coil spring is provided between the limiting plate 306 and the gunstock 301.

[0039] The barrel 310 is surrounded by a barrel sleeve 308, and a filler 316 is provided between the barrel sleeve 308 and the barrel 310. The filler 316 is used to reduce the rate of temperature loss of the slurry inside the barrel 310.

[0040] The front end of the barrel 310 is also provided with a retractable measuring cylinder 311. The measuring cylinder 311 is slidably connected to the barrel sleeve 308. The measuring cylinder 311 is used to measure the depth of the muzzle inserted into the tube segment.

[0041] In a preferred embodiment, the stock 301 is further provided with a data processing module 312, and a second interface 313 is provided below the data processing module 312. The second interface 313 is used for electrical connection with the portable power supply 2.

[0042] Example 2

[0043] Further explanation in conjunction with Example 1, such as Figure 1-13 The structure shown is a tunnel segment grouting kit, including a smart safety helmet 1, a portable power supply 2, and a grouting device 4;

[0044] The smart safety helmet 1 is electrically connected to the portable power supply 2. A grouting gun 3 is provided on one side of the grouting device 4, and the grouting device 4 and the grouting gun 3 are connected by a pipe.

[0045] The smart safety helmet 1 includes a top cover 113, with pivot brackets 109 on both sides of the top cover 113. A rotatable transparent face mask 101 is mounted on the pivot brackets 109. A back side 110 is also provided on one side of the top cover 113. Multiple side jaw sections 103 are provided on the side of the back side 110 facing the transparent face mask 101. A helmet strap is provided between the side jaw sections 103.

[0046] In the preferred embodiment, heat dissipation holes 105 are provided on both sides of the back side 110, and a miniature fan 107 is provided on the outer side of the back side 110. Air ducts 106 are provided on both sides of the miniature fan 107, and the air ducts 106 are connected to the heat dissipation holes 105. The miniature fan 107 is used to cool the inside of the safety helmet.

[0047] In the preferred embodiment, an infrared camera 104 and a high-definition camera 111 are provided on the side of the jaw 103 facing the transparent mask 101;

[0048] The side jaws 103 are symmetrically arranged on both sides of the transparent mask 101. One side is equipped with an infrared camera 104, and the other side is equipped with a high-definition camera 111 and a lighting lamp 116. The infrared camera 104 is used to detect the surface temperature of the tube segment, the high-definition camera 111 is used to take pictures of the tube segment, and the lighting lamp 116 is used for supplementary lighting.

[0049] The lower sides of the jaw 103 are also provided with projection support plates 112, and HUD projectors 108 are provided on the projection support plates 112. The HUD projectors 108 are used to project real-time information onto the transparent mask 101.

[0050] In the preferred embodiment, the top cover 113 is also equipped with an RFID tag 117 inside, and a net 114 is also provided below the RFID tag 117. The net 114 is used to fit the wearer's head, and the RFID tag 117 is used for identification by other devices.

[0051] A first interface 115 is also provided on the lower part of the back side 110, which is used to make an electrical connection with the portable power supply 2.

[0052] In the preferred embodiment, the portable power supply 2 includes a belt bracket 201, with breathable belts 204 on both sides of the belt bracket 201 and a fastening buckle 205 between the breathable belts 204. A solid-state battery 203 is located on one side of the belt bracket 201, and a cooling fan 202 is located on the back of the solid-state battery 203 for cooling the solid-state battery 203. A transformer motherboard and a wireless transmission module are located above the solid-state battery 203. The wireless transmission module uploads the construction parameters of the construction personnel to the backend server through the network.

[0053] In the preferred embodiment, the grouting device 4 includes a frame 401, a mixing hopper 402 is provided above the frame 401, and an air pump 403 is provided above the mixing hopper 402. The mixing hopper 402 is used to prepare grouting material, and the air pump 403 is used to pressurize the grouting material into the grouting gun 3.

[0054] The grouting gun 3 includes a gunstock 301, a gun barrel 310 on one side of the gunstock 301, a feeding valve 307 between the gun barrel 310 and the gunstock 301, a pull rod 314 on one side of the feeding valve 307, a sliding seat 302 between the pull rod 314 and the gunstock 301, the pull rod 314 and the sliding seat 302 are slidably connected, a limiting knob 309 is provided at one end of the pull rod 314, a valve core 315 is provided at the other end, and the valve core 315 is slidably connected to the feeding valve 307;

[0055] The limiting knob 309 is threadedly connected to the pull rod 314, and the limiting knob 309 is used to control the movement stroke of the valve core 315.

[0056] In the preferred embodiment, a feeding hole 304 is provided above the feeding valve 307. The feeding hole 304 is connected to the inside of the feeding valve 307 and is used to connect to the grouting device 4.

[0057] A sealing joint 303 is also provided around the feeding hole 304.

[0058] In the preferred embodiment, a grouting switch 305 is provided below the pull rod 314. The grouting switch 305 controls the opening and closing of the valve core 315 by swinging the pull rod 314.

[0059] Below the grouting switch 305, there is also a swingable limit plate 306. The limit plate 306 is hinged to the gunstock 301, and a coil spring is provided between the limit plate 306 and the gunstock 301.

[0060] The barrel 310 is surrounded by a barrel sleeve 308, and a filler 316 is provided between the barrel sleeve 308 and the barrel 310. The filler 316 is used to reduce the rate of temperature loss of the slurry inside the barrel 310.

[0061] The front end of the barrel 310 is also provided with a retractable measuring cylinder 311. The measuring cylinder 311 is slidably connected to the barrel sleeve 308. The measuring cylinder 311 is used to measure the depth of the muzzle inserted into the tube segment.

[0062] The stock 301 also includes a data processing module 312. Below the data processing module 312 is a second interface 313, which is used to connect to the portable power supply 2.

[0063] The construction method of the tunnel segment grouting kit described above includes:

[0064] S1. The segment maintenance personnel, wearing smart safety helmets 1 and portable power supplies 2, enter the subway tunnel together with the grouting device 4 and materials;

[0065] S2. When passing through the tunnel maintenance door, the RFID tag 117 connects with the sensing device, and the sensing device automatically identifies the maintenance personnel and records the entry time.

[0066] S3. After the maintenance personnel arrive at the construction site, they turn on the portable power supply 2, and turn on the high-definition camera 111 and the lighting lamp 116 to take pictures of the crack location of the pipe segment. The pictures are automatically uploaded to the server. The server gives a temporary solution from the preset database first. The construction personnel apply on their mobile phones to carry out construction according to the temporary solution.

[0067] S4. After the plan is approved, the construction personnel first open the grouting hole 5 below the crack and the grout outlet hole 6 above the crack. They then use the high-definition camera 111 to take pictures and upload them. The grouting device 4 is then used to make the grout and the air pump 403 is started to pressurize it.

[0068] S5. After the grout is prepared, insert the barrel 310 of the grouting gun 3 into the grouting hole 5. At this time, the measuring cylinder 311 records the insertion depth of the pipe and transmits it to the data processing module 312.

[0069] S6. When grouting begins, the infrared camera 104 is activated. Since the temperature of the grout is higher than that of the surrounding segments, the infrared camera can monitor the rise height of the grout in the crack by temperature. When the grout reaches the outlet hole, the air pump 403 stops pressurizing.

[0070] S7. After grouting is completed, the various parameters recorded by the information processing module in the portable power supply 2 during construction are automatically uploaded to the server. Repeat steps S1-S6 to complete the maintenance work of the subway tunnel cracks.

[0071] In the preferred embodiment, in step S4, the photo taken by the high-definition camera 111 will mark the straight-line distance between the grouting hole 5 and the grout outlet hole 6 on the image and divide it into ten equal parts, with each part representing 10% completion of crack grouting;

[0072] In step S6, the infrared camera 104 uploads thermal images to the information processing module. The information processing module overlays the images from the high-definition camera 111 and the infrared camera 104 and analyzes the degree of crack completion based on the height of temperature rise. The overlaid image is converted into a simple wireframe and projected onto area A on the transparent mask 101 via the HUD projector 108. This process can be completed by transmitting the data to a remote server via a wireless network and then back to the construction site.

[0073] The specific implementation process of a tunnel segment grouting kit and its construction method is as follows:

[0074] Construction process

[0075] S1: Preparations

[0076] The segment maintenance personnel, wearing smart safety helmets 1 and portable power supplies 2, carry grouting equipment 4 and necessary materials into the subway tunnel. The smart safety helmets 1 and portable power supplies 2 are electrically connected via a first interface 115 to ensure normal power supply to all equipment.

[0077] S2: Identity Recognition and Recording

[0078] When passing through the tunnel maintenance door, the RFID tag 117 inside the smart safety helmet 1 connects with the sensing device, which automatically identifies the maintenance personnel and records the entry time. This step ensures the legitimacy of the construction personnel and the accuracy of the construction records.

[0079] S3: Crack Location Identification and Photography

[0080] After arriving at the construction site, the maintenance personnel turned on the portable power supply 2, and activated the high-definition camera 111 and the lighting 116. The high-definition camera 111 took pictures of the cracked area of ​​the tunnel segment and automatically uploaded the photos to the backend server. The server prioritized providing temporary repair solutions from a preset database, and the construction personnel applied for and carried out the work according to the temporary solutions on their mobile phones.

[0081] S4: Open grouting holes and grout outlet holes

[0082] After the plan was approved, the construction workers first opened grouting holes 5 below the crack and grout outlet holes 6 above the crack. They then used a high-definition camera 111 to photograph the locations of grouting holes 5 and grout outlet holes 6 and uploaded the photos to the server. The photos taken by the high-definition camera 111 will mark the straight-line distance between grouting holes 5 and grout outlet holes 6 on the map and divide it into ten equal parts, each part representing 10% completion of crack grouting.

[0083] S5: Slurry preparation and pressurization

[0084] Grout is prepared using grouting device 4. The grout in mixing hopper 402 is pressurized by air pump 403, ready to be injected into the crack. After the grout is prepared, the barrel 310 of grouting gun 3 is inserted into grouting hole 5. Measuring cylinder 311 records the insertion depth of the nozzle and transmits the data to data processing module 312.

[0085] S6: Grouting and Real-time Monitoring

[0086] When grouting begins, infrared camera 104 is activated. Because the temperature of the grout is higher than that of the surrounding tunnel segments, infrared camera 104 can monitor the rise height of the grout in the cracks by temperature. When the grout reaches the outlet hole 6, air pump 403 stops pressurizing.

[0087] During the grouting process, the infrared camera 104 uploads thermal images to the data processing module 312. The data processing module 312 overlays the images from the high-definition camera 111 and the infrared camera 104, and analyzes the degree of crack completion using image processing algorithms. The specific steps are as follows:

[0088] Image registration: The visible light photo taken by the high-definition camera 111 is registered with the thermal image taken by the infrared camera 104 using an image registration algorithm to ensure that the pixels of the two photos correspond one-to-one.

[0089] The algorithm steps are as follows:

[0090] 1. Constructing scale space:

[0091] (1) Gaussian blurring is applied to the visible light photos taken by the high-definition camera 111 and the thermal images taken by the infrared camera 104 to generate a multi-scale image pyramid.

[0092] 2. Detecting extreme points:

[0093] (1) In scale space, local extrema are found as candidate key points by comparing each pixel with its neighboring pixels.

[0094] 3. Key point identification:

[0095] (1) Accurately locate candidate key points and eliminate points with low contrast and unstable edge response.

[0096] 4. Direction Assignment:

[0097] (1) Assign a main direction to each key point based on the direction histogram of the gradient in its neighborhood.

[0098] 5. Feature descriptor:

[0099] (1) Take a 16x16 window around the key point and divide it into 16 4x4 blocks. Calculate the gradient histogram in 8 directions for each block to form a 128-dimensional feature vector.

[0100] 6. Feature matching:

[0101] (1) Use KD tree or brute force matching method to find the nearest neighbor matching point between key points of two images.

[0102] (2) Filter reliable matching points by ratio test (e.g., the ratio of nearest neighbor distance to second nearest neighbor distance is less than 0.8).

[0103] 7. Transformation model estimation:

[0104] (1) Use the RANSAC algorithm to estimate the transformation model (such as homography transformation) from the matching points.

[0105] 8. Image registration:

[0106] (1) Apply the transformation model to one of the images to align it with the other image.

[0107] (2) The aligned images are fused to obtain the final registration result.

[0108] Temperature threshold segmentation: Set a temperature threshold to segment the high-temperature area (i.e., the grout area) and the low-temperature area (i.e., the un-grouted area) in the thermal imaging image.

[0109] 1. Data preprocessing:

[0110] (1) Read the raw data of the thermal imaging photos taken by the infrared camera 104.

[0111] (2) Use Gaussian filtering to denoise the thermal imaging data.

[0112] 2. Determine the temperature threshold:

[0113] (1) Calculate the grayscale histogram of the thermal image.

[0114] (2) Use the Otsu method to automatically determine the optimal threshold T.

[0115] 3. Temperature threshold segmentation:

[0116] (1) Binarization:

[0117] (2) Traverse each pixel in the thermal image. If the gray value of the pixel is greater than or equal to T, mark it as 1 (high temperature area); otherwise mark it as 0 (low temperature area).

[0118] 4. Morphological treatment:

[0119] (1) Perform an opening operation on the binarized image to remove small noise points.

[0120] (2) Perform a closing operation on the binarized image to fill small holes.

[0121] (3) Mark the connected regions of the binarized image and merge adjacent high-temperature regions into one connected region.

[0122] 5. Post-processing of results:

[0123] (1) Use median filtering to smooth the boundaries of the segmentation results.

[0124] (2) Fill the small holes in the segmented high-temperature area.

[0125] (3) Calculate the area of ​​each connected region and calculate the total area of ​​the high-temperature region.

[0126] 6. Output Results:

[0127] (1) Output a binarized thermal image.

[0128] (2) The binarized result is superimposed on the visible light photo taken by the high-definition camera 111 to generate a color image with temperature information.

[0129] Crack filling degree calculation: Based on the temperature threshold segmentation results, calculate the area of ​​the filled region within the crack. Combined with the pre-marked ten-part division lines in the photos taken by the high-definition camera 111, calculate the crack filling degree.

[0130] 1. Data preparation:

[0131] (1) Read the thermal imaging photos taken by the infrared camera 104 and the visible light photos taken by the high-definition camera 111.

[0132] (2) Gaussian filtering is applied to the thermal imaging photos to reduce noise, and contrast enhancement is applied to the visible light photos.

[0133] 2. Temperature threshold segmentation:

[0134] (1) Use the Otsu method to determine the optimal temperature threshold T.

[0135] (2) Binarize each pixel in the thermal image.

[0136] (3) Perform opening and closing operations on the binarized image to remove small noise points and fill small holes.

[0137] (4) Mark the connected regions of the binarized image and extract all connected high-temperature regions.

[0138] 3. Calculate the area of ​​the filled region in the crack:

[0139] (1) Use the cv2.findContours function in the OpenCV library to find all connected high-temperature regions.

[0140] (2) Use the cv2.contourArea function to calculate the area of ​​each connected region.

[0141] (3) Add up the areas of all connected regions to get the total filled area.

[0142] 4. Photos taken using the HD camera 111:

[0143] (1) Use SIFT or SURF algorithms to register visible light images with thermal images.

[0144] (2) Mark the straight-line distance between the grouting hole 5 and the grout outlet 6 in the registered visible light photograph, and divide it into ten equal parts.

[0145] 5. Calculate the degree of crack filling:

[0146] (1) Project the ten dividing lines marked in the visible light photograph onto the registered thermal image.

[0147] (2) For each segment of ten equal divisions, calculate the area of ​​the high-temperature region (slurry region) within that segment.

[0148] (3) Calculate the filling degree of each segment: Filling degree = (Area of ​​high temperature area in the segment / Total area of ​​the segment) * 100%.

[0149] (4) Add up the filling degree of each segment to get the total crack filling degree.

[0150] Overlay and display: The processed image is overlaid and converted into a simple wireframe, which is then projected onto area A on the transparent mask 101 via the HUD projector 108, allowing construction personnel to view the crack filling progress in real time.

[0151] 1. Generate a simple wireframe:

[0152] (1) Generate the corresponding line segments according to the degree of filling of each segment.

[0153] (2) Each 10% fill level can be represented by a line segment, and the length of the line segment represents the fill level of that segment.

[0154] 2. Image overlay:

[0155] (1) Overlay the generated simple wireframe onto the registered visible light photograph.

[0156] (2) Use the cv2.addWeighted function in the OpenCV library to overlay images.

[0157] (3) Choose different colors or transparency to distinguish different fill levels.

[0158] 3. Projected onto HUD:

[0159] (1) Use HUD projector 108 to project the superimposed image onto area A on transparent mask 101.

[0160] (2) Adjust the position and angle of the projector to ensure that the image is clear and the position is accurate.

[0161] (3) Adjust the brightness and contrast of the projector to ensure that the image is clearly visible under different lighting conditions.

[0162] S7: Data Upload and Repeated Operations

[0163] After grouting is completed, the information processing module in the portable power supply 2 automatically uploads all parameters recorded during construction to the server. Repeat steps S1-S6 until the maintenance work on the subway tunnel cracks is completed.

[0164] Through the above steps, the tunnel segment grouting kit of the present invention not only improves construction efficiency and quality control, but also enhances construction safety and reliability. The application of image processing algorithms makes the monitoring of crack filling conditions more accurate and intuitive, providing construction personnel with real-time and reliable data support.

[0165] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A tunnel segment grouting device, characterized in that: The grouting device (4) includes a frame (401), a mixing hopper (402) is provided above the frame (401), and an air pump (403) is provided above the mixing hopper (402). The mixing hopper (402) is used to make grouting material, and the air pump (403) is used to press the grouting material into the grouting gun (3). The grouting gun (3) includes a gunstock (301), a gun barrel (310) is provided on one side of the gunstock (301), a feeding valve (307) is provided between the gun barrel (310) and the gunstock (301), a pull rod (314) is provided on one side of the feeding valve (307), a sliding seat (302) is provided between the pull rod (314) and the gunstock (301), the pull rod (314) and the sliding seat (302) are slidably connected, a limiting knob (309) is provided at one end of the pull rod (314), and a valve core (315) is provided at the other end, the valve core (315) is slidably connected to the feeding valve (307).

2. The tunnel segment grouting device according to claim 1, characterized in that: The limiting knob (309) is threadedly connected to the pull rod (314), and the limiting knob (309) is used to control the movement stroke of the valve core (315).

3. The tunnel segment grouting device according to claim 1, characterized in that: A feeding hole (304) is provided above the feeding valve (307). The feeding hole (304) is connected to the inside of the feeding valve (307). The feeding hole (304) is used to connect to the grouting device (4). A sealing joint (303) is also provided around the feeding hole (304).

4. The tunnel segment grouting device according to claim 1, characterized in that: A grouting switch (305) is provided below the pull rod (314). The grouting switch (305) controls the opening and closing of the valve core (315) by swinging the pull rod (314).

5. The tunnel segment grouting device according to claim 1, characterized in that: Below the grouting switch (305) is a swingable limiting plate (306), which is hinged to the gunstock (301), and a coil spring is provided between the limiting plate (306) and the gunstock (301). The barrel (310) is surrounded by a barrel sleeve (308), and a filler (316) is provided between the barrel sleeve (308) and the barrel (310). The filler (316) is used to reduce the rate of temperature loss of the slurry inside the barrel (310). The front end of the barrel (310) is also provided with a retractable measuring cylinder (311), which is slidably connected to the barrel sleeve (308). The measuring cylinder (311) is used to measure the depth of the muzzle inserted into the tube segment.

6. The tunnel segment grouting device according to claim 1, characterized in that: The stock (301) is also equipped with a data processing module (312), and a second interface (313) is provided below the data processing module (312). The second interface (313) is used to electrically connect to the portable power supply (2).

Images