A support device with deviation correction function for water-rich soft rock tunnel

Abstract

The present invention discloses a support device with a deviation correction function for a water-rich soft rock tunnel, and relates to the field of mining equipment. It solves the problem that temporary support of the tunnel is required when anchor bolt support is used for anchor grouting drilling. The existing temporary support device is time-consuming and labor-intensive to build manually, and the manual construction is prone to the construction offset of the temporary support device, resulting in uneven support force. A support device with a deviation correction function for a water-rich soft rock tunnel comprises an intermediate base, both sides of the intermediate base are slidably connected to a movable base plate, a tensile assembly is fixedly connected between the intermediate bases, and centrally symmetrical support frames are respectively provided on the movable base plates, and a support main frame is provided on the support frame. The support device is easy to move when no support is being performed, and through centering and deviation correction support, the support frame and the support main frame cooperate to make the support force uniform, thereby preventing accidents in the tunnel during anchor grouting drilling.

Description

Technical Field

[0001] The present invention relates to the field of mining equipment, in particular to a supporting device with a deviation correction function for a water-rich soft rock tunnel. Background Art

[0002] Soft rock can be divided into two categories: geological soft rock and engineering soft rock. Geological soft rock refers to loose, loose, soft, and weak rock formations with low strength, high porosity, poor cementation, significant structural cuts and weathering, or containing large amounts of expansive clay minerals. Anchor support, on the other hand, involves inserting anchors within the surrounding rock to modify its mechanical state, forming a cohesive and stable rock belt around the roadway. The combined action of the anchors and the surrounding rock maintains roadway stability.

[0003] At present, coal mines are mainly mined underground, which requires the excavation of a large number of tunnels underground and the support of the tunnels to keep the tunnels unobstructed and the surrounding rock stable. At present, most tunnel supports are anchor support. Before anchor support is carried out, the tunnel needs to be anchored and drilled, and then the anchors are driven into the holes to achieve support. In order to prevent the tunnel from collapsing during anchor drilling, temporary support is required for the inner wall of the tunnel. The existing temporary support devices are time-consuming and labor-intensive to build manually, especially for water-rich soft rock tunnels. Manual construction is prone to temporary support device construction offset, resulting in uneven support force, and the inability to quickly implement temporary support, which greatly slows down the efficiency of tunnel support. Summary of the Invention

[0004] In order to overcome the shortcomings that manual construction of temporary support devices is not only time-consuming and labor-intensive, but also prone to deviation, resulting in uneven support force and reduced tunnel support efficiency, the present invention provides a support device with a correction function for water-rich soft rock tunnels to solve the above problems.

[0005] A support device with a deviation correction function for a water-rich soft rock tunnel comprises an intermediate base distributed in opposite directions, both sides of the intermediate base are slidably connected to a movable base plate, a stretching assembly for adjusting the support spacing is fixedly connected between the intermediate bases, an auxiliary assembly for assisting workers in anchoring and drilling is slidably connected to the stretching assembly, a moving assembly is provided on the movable base plate, one end of the intermediate base is fixedly connected to a servo motor, a threaded shaft is rotatably connected to the intermediate base, a transmission assembly is provided between the output shaft of the servo motor and the threaded shaft, and a threaded shaft is threadedly connected to a member slidably connected to the intermediate base The sliding block and the moving base plate are provided with an inclined groove on the inner side thereof for limiting sliding cooperation with the sliding block. The moving base plates are respectively provided with a centrally symmetrical support frame body. An electric hydraulic push rod is provided inside the support frame body. A sliding base is provided on the electric hydraulic push rod. A limited sliding block is slidably connected to the sliding base. The support frame body and the limit sliding block are limitedly slidably connected. One end of the limit sliding block is fixedly connected to the support main frame body. A self-locking component for stabilizing the support force is provided on the support frame body. The self-locking component cooperates with the support frame body to lock the support main frame body and stabilize the support force on the soft rock tunnel.

[0006] It is further explained that the upper side surface of the main support frame is set to an arc-shaped structure with the same curvature as the roof of the soft rock tunnel.

[0007] To further illustrate, the moving assembly includes a fixed frame, which is fixedly connected to the moving base plate. A lifting shaft is threadedly connected to the fixed frame. A fixed rotating block is provided at one end of the lifting shaft, and the fixed rotating block is rotatably connected to a pulley.

[0008] To further illustrate, a reversing block for changing the pulley is slidably provided on the fixed rotating block, and a locking buckle for locking the pulley is rotatably connected to the reversing block.

[0009] Further explanation, the self-locking assembly includes a central rotating shaft, which is fixedly connected to the middle base, and a rotating rod is rotatably connected to the central rotating shaft. Both ends of the rotating rod are hinged with connecting blocks, and the connecting blocks are hinged with a transmission rod. The transmission rod is slidably connected to a bracket, the bracket is fixedly connected to the middle base, and a self-locking block is fixedly connected to the transmission rod, which is slidably connected to the support frame. A self-locking spring is fixedly connected to the self-locking block, and the self-locking spring is fixedly connected to the support frame.

[0010] Further explanation: the stretching assembly includes a fixed frame, which is fixedly connected to the middle base, and is provided with an adjustment grid for changing the support spacing. The fixed frame is provided with a support outer shell, and the interior of the support outer shell is slidably connected to a sliding inner shell, and the sliding inner shell is slidably connected to a sliding support frame for supporting the auxiliary assembly.

[0011] To further illustrate, the sliding bracket is provided with through holes equidistantly spaced in the circumferential direction for limited sliding engagement with the locking assembly.

[0012] Further explanation, the auxiliary component includes a sliding support block, which is slidably connected to the sliding support frame. The sliding support block is threadedly connected to a lifting screw. The lower end of the lifting screw is fixedly connected to an operating disk. The lifting screw is fixedly connected to a lifting disk. The lifting disk is provided with a discharge pipe for recovering drilling waste. The sliding support block is slidably connected to a locking component for locking.

[0013] Further description, the locking assembly includes a pull rope, the pull rope is slidably connected to the sliding support block, the pull rope is fixedly connected to the locking plug shaft, and a locking spring is fixedly connected between the locking plug shaft and the sliding support block.

[0014] The beneficial effects of the present invention are:

[0015] 1. The fixed frame is fixedly connected to the middle base. When adjusting the support spacing, the fixed frame drives the adjustment grid to stretch, and the supporting outer shell and the sliding inner shell on the fixed frame slide to increase the adjustment spacing of the support spacing, greatly improving the support range.

[0016] 2. When not providing support, the support device is easy to move and can quickly provide temporary support at any location in the soft rock tunnel. The movable bottom plates on both sides of the middle base are opened from the center to both sides away from the middle base to position and correct the center of the support device and the center of the tunnel, driving the support frame and the inner walls on both sides of the soft rock tunnel to provide temporary support.

[0017] 3. Mobile components are set on the movable bottom plates on both sides of the middle base. The staff can switch the travel state by rotating the reversing block and the locking buckle, which greatly improves the efficiency of temporary support. The lifting shaft in the mobile component can lift the pulley to the middle base and the movable bottom plate to fully focus on the ground, evenly distribute the pressure on the tunnel ground, and avoid the deviation of the support force during the anchor grouting drilling operation, which may cause the ground below to be squeezed and deformed.

[0018] 4. The upper side of the support main frame is set to an arc structure with the same curvature as the top plate of the soft rock tunnel, which fits more closely with the soft rock tunnel, making the support force of the support main frame on the top plate more uniform, and greatly improving the support effect. After the support main frame completes the support docking, the bracket and the self-locking block will limit and lock the limit slider to prevent the support main frame from falling directly when the electric hydraulic push rod has a power problem and cannot output the support force, causing damage to the tunnel and injury to the staff.

[0019] 5. When the staff is performing anchor grouting drilling, the sliding support block is slidably connected to the sliding support frame, and the sliding support frame is slidably connected to the sliding inner shell, so that the drilling position in the soft rock tunnel is multidimensional. The sliding support block is provided with a lifting plate and a feeding pipe. When the drilling operation is carried out, the waste and dust generated by the drilling will be collected along the feeding pipe. The sliding support block is slidably connected with a locking assembly. The staff drives the locking spring to compress or stretch through the pull rope, so that the locking plug shaft is locked with the through hole of the sliding support frame to prevent the drilling device from sliding during anchor grouting drilling, which causes the drilling position to shift. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of a partial explosion structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of part of the supporting device of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the mobile component of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the self-locking component of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the stretching assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the drilling assembly of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the locking assembly of the present invention.

[0028] In the above figures: 101: middle base, 102: moving base plate, 103: servo motor, 104: transmission assembly, 105: threaded shaft, 106: sliding block, 107: support frame, 108: electric hydraulic push rod, 109: sliding base, 110: limiting slider, 111: supporting main frame, 2: moving assembly, 201: fixed frame, 202: lifting shaft, 203: fixed rotating block, 204: pulley, 205: reversing block, 206: locking buckle, 3: self-locking assembly, 301: central rotating shaft, 30 2: Rotating rod, 303: Connecting block, 304: Transmission rod, 305: Bracket, 306: Self-locking block, 307: Self-locking spring, 4: Stretching component, 401: Fixed frame, 402: Adjusting grid, 403: Support shell, 404: Sliding inner shell, 405: Sliding support frame, 5: Auxiliary component, 501: Sliding support block, 502: Lifting screw, 503: Operating disk, 504: Lifting disk, 505: Discharge pipe, 6: Locking component, 601: Pull rope, 602: Locking spring, 603: Locking plug shaft. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. The left, right, front, and back that appear below are all in the same manner as in the appended drawings. Figure 1 The direction shown in is the reference, and the direction in which the support device moves along the tunnel is the front-to-back direction.

[0030] Example 1

[0031] A support device with a correction function for water-rich soft rock tunnels, such as Figures 1-8 As shown, it includes oppositely distributed intermediate bases 101, and the left and right sides of the intermediate base 101 are slidably connected with movable base plates 102, and a stretching component 4 for adjusting the support spacing is fixedly connected between the intermediate bases 101. The stretching component 4 includes a fixed frame 401, and the fixed frame 401 is fixedly connected to the intermediate base 101. An adjustment grid 402 for changing the support spacing is provided on the fixed frame 401, and a support shell 403 is provided on the fixed frame 401. The interior of the support shell 403 is slidably connected to a sliding inner shell 404, and the sliding inner shell 404 is slidably connected to a sliding bracket 405 for supporting the auxiliary component 5, thereby increasing the adjustment range of the support spacing, and the movable base plate 102 is bolted to the movable component 2.

[0032] like Figure 2-Figure 4As shown, the moving component 2 includes a fixed frame 201, which is fixedly connected to the moving base plate 102, and a lifting shaft 202 is threadedly connected to the fixed frame 201. The lower end of the lifting shaft 202 is rotatably connected to a fixed rotating block 203, and the fixed rotating block 203 is rotatably connected to a pulley 204. A reversing block 205 for changing the direction of the pulley 204 is slidably connected to the fixed rotating block 203. The reversing block 205 facilitates the rapid movement of the moving base plate 102 to support the inner walls on both sides of the left and right sides through the reversing of the pulley 204, thereby increasing the temporary support efficiency. A locking buckle 206 for locking the pulley 204 is rotatably connected to the reversing block 205 to prevent the pulley 204 from automatically reversing. The rear end of the intermediate base 101 is fixedly connected to the servo motor 103, and the intermediate base 101 is rotatably connected to the threaded shaft 105. The output shaft of the servo motor 103 is connected to the screw thread 105. The cam 106 is connected to the upper and lower parts of the cam 107 so that the upper and lower parts of the cam 107 are in a fixed position, and the upper and lower parts of the cam 107 are in a fixed position, so that the upper and lower parts of the cam 107 are in a fixed position, and the upper and lower parts of the cam 107 are in a fixed position, so that the upper and lower parts of the cam 107 are in a fixed position, and the upper and lower parts of the cam 107 are in a fixed position, so that the upper and lower parts of the cam 107 are in a fixed position, and the upper and lower parts of the cam 107 are in a fixed position,

[0033] like Figure 5 As shown, the self-locking component 3 includes a central rotating shaft 301, which is fixedly connected to the intermediate base 101, and a rotating rod 302 is rotatably connected to the central rotating shaft 301. Both ends of the rotating rod 302 are hinged with connecting blocks 303, and the connecting block 303 is hinged with a transmission rod 304. The transmission rod 304 is slidably connected to a bracket 305, and the bracket 305 is fixedly connected to the intermediate base 101. A self-locking block 306 is fixedly connected to the transmission rod 304, and the self-locking block 306 is slidably connected to the support frame 107. A self-locking spring 307 is fixedly connected to the self-locking block 306, and the self-locking spring 307 is fixedly connected to the support frame 107. The self-locking component 3 cooperates with the support frame 107 to lock the support main frame 111 and stabilize the support force on the soft rock tunnel.

[0034] When the staff performs temporary support and anchor drilling work on the soft rock tunnel, the device is moved to the temporary support or anchor drilling position, and the two intermediate bases 101 are pushed in reverse to the support position according to the work requirements. During the pushing process, the adjustment grid 402 installed between the fixed frame 401 in the stretching component 4 begins to stretch, and the supporting shell 403 and the sliding inner shell 404 above the fixed frame 401 slide relative to each other to complete the adjustment of the support spacing. The intermediate base 101 drives the movable base plates 102 on the left and right sides and the support device above to the support position, and then changes the travel state of the movable component 2. The staff opens the locking buckle 206 used for locking, and then rotates the locking buckle 206 90° along the reversing groove on the movable base plate 102 to lock it. The buckle 206 drives the fixed rotating block 203 to rotate by driving the reversing block 205, thereby completing the steering of the pulley 204. The change of direction of the pulley 204 makes it easy for the mobile base plate 102 to move quickly to the left and right sides, temporarily support the two sides of the inner wall, and speed up the temporary support efficiency. Then the locking buckle 206 is pressed and locked to complete the reversal of the moving component 2, and then the servo motor 103 is started, and the threaded shaft 105 is driven to rotate through the transmission component 104. The rotation of the threaded shaft 105 drives the sliding block 106, and the sliding block 106 pushes the moving base plate 102 to open from the center to the left and right sides. After the moving base plate 102 contacts the side wall of the tunnel, the positioning and deviation correction of the center of the support device and the center of the tunnel are completed, and it serves to limit the left and right movement of the support device.

[0035] After the movable bottom plate 102 drives the support frame 107 to contact the side wall of the soft rock tunnel for temporary support, the servo motor 103 is turned off, and the staff operates the lifting shaft 202 to move upward. Since the fixed rotating block 203 is provided with a longitudinal slide groove, the locking effect of the locking buckle 206 is not affected when the pulley 204 is lifted. The lifting shaft 202 drives the pulley 204 to move upward until the intermediate base 101 and the movable bottom plate 102 are fully applied to the ground, uniformly applying pressure to the ground of the soft rock tunnel. After the staff completes the adjustment of the support spacing, the electric hydraulic push rod 108 is turned on, and the electric hydraulic push rod 108 pushes the sliding base 109 to move upward, and the sliding base 109 drives the limit slider 110 to move upward uniformly, and the limit slider 110 moves along the support frame 10 When the sliding is completed, the limit slider 110 drives the self-locking block 306 to compress the self-locking spring 307. After the self-locking spring 307 is compressed to the limit slider 110 and the top of the support frame 107 is contacted, the electric hydraulic push rod 108 is immediately closed, and the self-locking spring 307 rebounds and drives the self-locking block 306 to lock the limit slider 110. At this time, the two support main frames 111 are docked and temporarily support the top plate of the soft rock tunnel.

[0036] When evacuating this support device, the staff rotates the rotating rod 302, and the rotating rod 302 drives the transmission rod 304 through the connecting block 303. The transmission rod 304 drives the self-locking block 306 to compress the self-locking spring 307 to release the locking limit of the limit slider 110. At the same time, the electric hydraulic push rod 108 is turned on to drive the sliding base 109 to reset, and then the electric hydraulic push rod 108 is closed. The staff uses the tool to reset the lifting shaft 202, and then turns on the servo motor 103 to drive the moving base plate 102 to reset, and then turns off the servo motor 103. After the staff resets the moving component 2, it pushes the intermediate base 101 to reset, and repeats the above actions when performing temporary support again.

[0037] Example 2

[0038] On the basis of Example 1, Figure 6-Figure 8As shown, the auxiliary component 5 includes a sliding support block 501, which is slidably connected to the sliding support frame 405, and the sliding support block 501 is threadedly connected to a lifting screw 502, and the lower end of the lifting screw 502 is fixedly connected to an operating disk 503, and the lifting screw 502 is fixedly connected to a lifting disk 504, and a feeding pipe 505 for recycling drilling waste is welded on the lifting disk 504, and a locking component 6 for locking is slidably connected to the sliding support block 501, and a through hole slidably connected to the locking component 6 is provided on the sliding support frame 405, and the locking component 6 includes a pull rope 601, which is slidably connected to the sliding support block 501, and the pull rope 601 is fixedly connected to a locking plug shaft 603, and a locking spring 602 is fixedly connected between the locking plug shaft 603 and the sliding support block 501.

[0039] After the temporary support of the soft rock tunnel is completed, the staff starts anchor drilling. The staff installs the drilling device to the center position of the lifting plate 504. The staff controls the sliding support block 501 and the sliding support frame 405 to slide along the sliding inner shell 404 through the operating plate 503 to determine the longitudinal position of the anchor drilling. Then, the staff pulls the pull rope 601 to compress the locking spring 602. The compression of the locking spring 602 drives the locking plug shaft 603 to disengage from the cooperation of the sliding support frame 405. At the same time, the staff controls the sliding support block 501 to slide along the sliding support frame 405 through the operating plate 503 to determine the horizontal position of the drilling. After the anchor drilling position is determined, the staff controls the lifting plate 504 to rise to close contact with the top plate of the soft rock tunnel by turning the operating plate 503, and then starts the drilling device. The drilling waste and dust generated during the anchor drilling are discharged along the discharge pipe 505 and collected. After the anchor drilling is completed, the staff resets the sliding support block 501 and the lifting plate 504, and then carries out the evacuation of the above-mentioned support device.

[0040] Example 3

[0041] On the basis of Example 2, Figures 1-8 As shown, a roof support method includes the following steps:

[0042] S1: When the staff is carrying out temporary support and anchor drilling work in the soft rock tunnel, they push the middle base 101 at both ends in the opposite direction according to the work requirements, and drive the adjusting grid 402 to stretch and the support outer shell 403 and the sliding inner shell 404 to slide relative to each other. After completing the adjustment of the support spacing according to the work requirements, the moving component 2 changes the travel state, and then starts the servo motor 103 to drive the sliding block 106 to move linearly through the transmission, and drives the moving bottom plate 102 to open to both sides to the full state, and immediately turns off the servo motor 103. At this time, the support frame 107 applies support force to both sides of the soft rock tunnel, and then the staff operates the lifting shaft 202 to move upward, and the lifting shaft 202 drives the pulley 204 to move upward, so that the middle base 101 and the moving bottom plate 102 are fully applied to the ground;

[0043] S2: After step S1 is completed, the electric hydraulic push rod 108 is turned on to push the sliding base 109 to move upward. When the sliding base 109 moves upward, it will drive the limiting slider 110 to dock the two supporting main frames 111. When the limiting slider 110 contacts the self-locking block 306, the limiting slider 110 drives the self-locking block 306 to compress the self-locking spring 307. After the self-locking spring 307 is compressed to the limit slider 110 and contacts the top of the support frame 107, the electric hydraulic push rod 108 is immediately closed. The self-locking spring 307 rebounds and drives the self-locking block 306 to lock the limit slider 110, thereby completing the temporary support of the tunnel.

[0044] S3: After step S2 is completed, the staff starts to perform anchor drilling. The staff installs the drilling device to the center position of the lifting plate 504. The staff controls the sliding support block 501 and the sliding support frame 405 to slide along the sliding inner shell 404 through the operating plate 503 to determine the longitudinal position of the anchor drilling. Then the staff releases the lock of the sliding support block 501 by the locking assembly 6. At the same time, the staff controls the sliding support block 501 to slide along the sliding support frame 405 through the operating plate 503 to determine the horizontal position of the anchor drilling. After the drilling position is determined, the staff controls the lifting plate 504 to rise to close contact with the roof of the soft rock tunnel by turning the operating plate 503, and then starts the drilling device. The drilling waste and dust generated during drilling are discharged along the discharge pipe 505 and collected;

[0045] S4: After the anchor drilling is completed and the anchoring construction is carried out, after the anchoring construction, the staff will reset the sliding support block 501 and the lifting plate 504, and then the staff will rotate the rotating rod 302, and the rotating rod 302 will drive the transmission rod 304 through the connecting block 303, and the transmission rod 304 will drive the self-locking block 306 to compress the self-locking spring 307 to release the locking limit of the limit slider 110, and at the same time turn on the electric hydraulic push rod 108 to drive the sliding base 109 to reset, and then turn off the electric hydraulic push rod 108, the staff will operate the lifting shaft 202 to reset, and then turn on the servo motor 103 to drive the moving base plate 102 to reset, and then turn off the servo motor 103. After the staff resets the moving component 2, it pushes the intermediate base 101 to reset.

[0046] It should be understood that the above description is only for illustrative purposes and is not intended to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will fall within the scope of the claims herein.

Claims

1. A support device with a deviation correction function for a water-rich soft rock tunnel, characterized by: The invention comprises intermediate bases (101) distributed in opposite directions, both sides of the intermediate bases (101) are slidably connected to movable base plates (102), a stretching assembly (4) for adjusting the support spacing is fixedly connected between the intermediate bases (101), an auxiliary assembly (5) for assisting workers in anchoring and drilling is slidably connected to the stretching assembly (4), a movable assembly (2) is provided on the movable base plate (102), one end of the intermediate base (101) is fixedly connected to a servo motor (103), a threaded shaft (105) is rotatably connected to the intermediate base (101), a transmission assembly (104) is provided between the output shaft of the servo motor (103) and the threaded shaft (105), a sliding block (106) slidably connected to the intermediate base (101) is threadedly connected to the threaded shaft (105), and a limited sliding block (106) is provided on the inner side of the movable base plate (102) and is slidably connected to the sliding block (106). The supporting frame (107) is provided on each movable bottom plate (102), and the two supporting frames (107) on the movable bottom plates (102) on both sides of the middle base (101) are symmetrically distributed in the center. An electric hydraulic push rod (108) is provided inside the supporting frame (107), and a sliding base (109) is provided on the electric hydraulic push rod (108). A limited slider (110) is slidably connected to the sliding base (109). The supporting frame (107) and the limited slider (110) are limitedly slidably connected. One end of the limited slider (110) is fixedly connected to the supporting main frame (111). A self-locking component (3) for stabilizing the supporting force is provided on the supporting frame (107), and the self-locking component (3) cooperates with the supporting frame (107) to lock the supporting main frame (111) to stabilize the supporting force of the soft rock tunnel. The upper side surface of the supporting main frame (111) is configured as an arc-shaped structure with the same arc as the top plate of the soft rock roadway; The movable bottom plates (102) on both sides of the middle base (101) are opened from the center to the sides away from the middle base (101), positioning and correcting the center of the support device and the center of the roadway, and driving the support frame (107) and the inner walls on both sides of the soft rock roadway to temporarily support; The electric hydraulic push rod (108) is turned on, and the electric hydraulic push rod (108) pushes the sliding base (109) to move upward, and the sliding base (109) drives the limit slider (110) to move upward uniformly, and the limit slider (110) slides along the support frame (107) and drives the support main frame (111) to slide longitudinally along the lane on the sliding base (109). During the upward movement of the sliding base (109), the limit slider (110) drives the two support main frames (111) to move until the docking is completed.

2. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 1 is characterized by: The moving assembly (2) includes a fixed frame (201), the fixed frame (201) is fixedly connected to the moving base plate (102), a lifting shaft (202) is threadedly connected to the fixed frame (201), a fixed rotating block (203) is provided at one end of the lifting shaft (202), and the fixed rotating block (203) is rotatably connected to a pulley (204).

3. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 2 is characterized by: A reversing block (205) for changing the traveling direction of the pulley (204) is slidably provided on the fixed rotating block (203), and a locking buckle (206) for locking the pulley (204) is rotatably connected to the reversing block (205).

4. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 1 is characterized by: The self-locking assembly (3) includes a central rotating shaft (301), the central rotating shaft (301) is fixedly connected to the intermediate base (101), a rotating rod (302) is rotatably connected to the central rotating shaft (301), both ends of the rotating rod (302) are hinged with connecting blocks (303), the connecting blocks (303) are hinged with a transmission rod (304), the transmission rod (304) is slidably connected to a bracket (305), the bracket (305) is fixedly connected to the intermediate base (101), a self-locking block (306) is fixedly connected to the transmission rod (304), the self-locking block (306) is slidably connected to the support frame (107), a self-locking spring (307) is fixedly connected to the self-locking block (306), and the self-locking spring (307) is fixedly connected to the support frame (107).

5. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 1 is characterized by: The stretching assembly (4) includes a fixed frame (401), the fixed frame (401) is fixedly connected to the intermediate base (101), an adjustment grid (402) for changing the support spacing is provided on the fixed frame (401), a support shell (403) is provided on the fixed frame (401), a sliding inner shell (404) is slidably connected to the interior of the support shell (403), and the sliding inner shell (404) is slidably connected to a sliding support frame (405) for supporting the auxiliary assembly (5).

6. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 5 is characterized by: The sliding support (405) is provided with through holes at equal intervals in the circumferential direction for limited sliding engagement with the locking assembly (6).

7. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 1 is characterized by: The auxiliary component (5) includes a sliding support block (501), the sliding support block (501) is slidably connected to the sliding support frame (405), the sliding support block (501) is threadedly connected to a lifting screw (502), the lower end of the lifting screw (502) is fixedly connected to an operating disk (503), the lifting screw (502) is fixedly connected to a lifting disk (504), the lifting disk (504) is provided with a feeding pipe (505) for recovering drilling waste, and the sliding support block (501) is slidably connected to a locking component (6) for locking.

8. The support device with a deviation correction function for a water-rich soft rock tunnel according to claim 7 is characterized by: The locking assembly (6) includes a pull rope (601), the pull rope (601) is slidably connected to the sliding support block (501), the pull rope (601) is fixedly connected to a locking plug shaft (603), and a locking spring (602) is fixedly connected between the locking plug shaft (603) and the sliding support block (501).

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