A kind of operating tunnel lining defect remediation construction scaffold

Abstract

The present application belongs to the field of building, and particularly relates to a scaffold for remediation construction of lining defects in an operating tunnel. The scaffold comprises a hydraulic oil cylinder, a scaffold pedestal, vertical rods, horizontal rods, inclined braces and a three-dimensional connecting mechanism. The hydraulic oil cylinder is fixedly arranged at the lower end surface of the scaffold pedestal. Two rows of annular clamping grooves are longitudinally arranged at the upper end surface of the scaffold pedestal. Short steel rods are arranged in the annular clamping grooves. The vertical rods are inserted into the gaps formed by the annular clamping grooves and the short steel rods. The vertical rods, the horizontal rods and the inclined braces are connected through the three-dimensional connecting mechanism. The three-dimensional connecting mechanism is composed of a vertical connecting assembly, a horizontal rod connecting assembly and an inclined rod connecting assembly. A circular level bubble is embedded in the geometric center of the upper end surface of the scaffold pedestal. The hydraulic oil cylinder is arranged to adjust the height of the scaffold in the tunnel. The three-dimensional connecting mechanism is arranged to fix the vertical rods, the horizontal rods and the inclined braces and to quickly lock the same.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of building, and particularly relates to a scaffold for defect rectification construction of an operating tunnel lining. BACKGROUND

[0002] The construction of an operating tunnel has a tight construction window period and short time, and the defect rectification construction of a long and large tunnel is more time-consuming, at present, the disc-type and bowl-type scaffolds are commonly used for the defect rectification construction of a tunnel, but the scaffold has a large number of rod members to be erected, a complicated process, time-consuming and laborious, low utilization rate of a single window, and increased construction cost.

[0003] A portal scaffold is commonly used as a working device in a field construction, but the rod members of the portal scaffold are mostly Φ26.8mm and Φ42mm steel pipe components for the convenience of loading and unloading, the height of the scaffold for defect repair construction of a large cross-section tunnel is mostly 6-8m, the overall stability of the scaffold is poor, and the drilling, chiseling, grouting and other construction operations will cause large shaking, thereby affecting the safety of the construction personnel and the construction efficiency. SUMMARY

[0004] In view of the above technical problems, the present application provides a scaffold for defect rectification construction of an operating tunnel lining, which is provided with a hydraulic oil cylinder capable of adjusting the height, realizes the adjustment of the height of the scaffold in the tunnel, and is provided with a three-dimensional connecting mechanism, which can realize the fixation of the vertical rod and the horizontal rod, rapid locking and rapid setting of the diagonal brace for reinforcement.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A scaffold for defect rectification construction of an operating tunnel lining, comprising a hydraulic oil cylinder, a scaffold base, a vertical rod, a horizontal rod, a diagonal brace and a three-dimensional connecting mechanism, the hydraulic oil cylinder is fixedly arranged at the lower end surface of the scaffold base, the upper end surface of the scaffold base is longitudinally provided with two rows of annular clamping grooves, a short steel rod is arranged in the annular clamping groove, the vertical rod is inserted into the gap formed by the annular clamping groove and the short steel rod, and the vertical rod, the horizontal rod and the diagonal brace are connected through the three-dimensional connecting mechanism.

[0007] Preferably, the three-dimensional connecting mechanism is composed of a vertical connecting assembly, a horizontal rod connecting assembly and a diagonal rod connecting assembly, the diagonal rod connecting assembly is arranged on the side wall of the vertical connecting assembly, and the two sides of the diagonal rod connecting assembly are provided with the horizontal rod connecting assembly.

[0008] Preferably, the vertical connecting assembly comprises integrally formed end steel pipes and a middle steel pipe, the end steel pipes are arranged at both ends of the middle steel pipe, the vertical rods are arranged in the end steel pipes, the outer wall of the end steel pipe is provided with resistance increasing devices, the resistance increasing devices comprise springs, hemispherical resistance increasing heads and limiting sheets, the outer wall of the end steel pipe is provided with a plurality of mounting grooves, one end of the spring is fixedly arranged in the mounting groove, the other end is fixedly connected with the limiting sheet, the hemispherical resistance increasing head is arranged on the outer end surface of the limiting sheet, and the outer portion of the mounting groove is further provided with limiting structures matched with the limiting sheet.

[0009] Preferably, the horizontal rod connecting assembly comprises a sleeve, half-split steel pipes, a lock and a pressing locking device, the sleeve is sleeved on the middle steel pipe, the two half-split steel pipes are integrally formed on the outer side wall of the sleeve at a horizontal angle of 90°, and the concave surfaces face upwards, one side of the lock is hingedly connected with the half-split steel pipe, and the other free side is connected with the half-split steel pipe through the pressing locking device, the free side of the lock is formed with an upward extending portion, and the corresponding half-split steel pipe is formed with a downward extending portion.

[0010] Preferably, the pressing locking device comprises an "L"-shaped tooth condition, a cylindrical pressing rod assembly and a first spring, the upward extending portion is provided with a sliding groove penetrating through the side surface and the bottom surface, the tooth condition is slidingly arranged in the sliding groove, the horizontal pressing segment of the tooth condition penetrates out of the side surface of the sliding groove, the rack segment of the tooth condition penetrates out of the bottom surface of the sliding groove, the first spring is arranged between the horizontal pressing segment of the tooth condition and the inner bottom surface of the sliding groove, a guide rod is arranged between the inner top surface and the inner bottom surface of the sliding groove, the horizontal pressing segment of the tooth condition is slidingly arranged on the guide rod, the downward extending portion is provided with a through activity groove and a clamping groove, the cylindrical pressing rod assembly is movably arranged in the activity groove, and the tooth condition can be movably inserted into the clamping groove and clamped with the end of the cylindrical pressing rod assembly.

[0011] Preferably, the cylindrical pressing rod assembly comprises a second spring, a limiting block, an upper stop block, a lower stop block and a pressing rod, the pressing rod is movably arranged in the activity groove, the upper stop block is formed on the inner wall of the upper portion of the activity groove and is provided with a central hole through which the pressing rod passes, the lower stop block is formed on the inner wall of the lower portion of the activity groove, the central holes through which the pressing rod passes are arranged in the centers of the upper stop block and the lower stop block, the limiting block is integrally formed on the outer wall of the pressing rod and is located between the upper stop block and the lower stop block, and the second spring is arranged between the lower end surface of the limiting block and the upper end surface of the lower stop block.

[0012] Preferably, the inner side wall of the activity groove is provided with a zigzag-shaped zigzag groove, the lowest point of the zigzag groove is located on the same horizontal plane, the highest point and the second highest point are alternately arranged, the side wall of the limiting block is provided with an annular groove, the groove depth of the annular groove is the same as that of the zigzag groove, two steel balls are symmetrically arranged at the joint positions, and the radius of the steel ball is the same as the groove depth of the annular groove.

[0013] Preferably, the groove comprises an upper groove line and a lower groove line, and the inflection point of the upper groove line moves in the same direction as the corresponding inflection point of the lower groove line by a distance greater than one steel ball diameter.

[0014] Preferably, the inclined rod connecting assembly comprises a special-shaped piece which is integrally formed with two half-split steel pipes adjacent to the special-shaped piece, two U-shaped grooves which are perpendicular to each other are formed in the special-shaped piece, the inclined rod is arranged on the U-shaped groove through a high-strength bolt, the inclined rod comprises an inclined rod and a bolt, the bolt is arranged in the middle of the two inclined rods, bolt holes are formed in the ends of the inclined rods, the ends of the inclined rods are clamped in the U-shaped groove, and the high-strength bolt is inserted into the bolt holes in the ends of the inclined rods.

[0015] Preferably, the hydraulic oil cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly connected to a base, a rubber bonding layer is bonded to the lower end surface of the base, the upper end surface of the piston rod is fixedly connected to the lower end surface of a scaffold pedestal, and a roller matched with a rail is arranged on the lower end surface of the scaffold pedestal.

[0016] Compared with the prior art, the movable scaffold pedestal has the following beneficial effects:

[0017] (1) When the movable scaffold pedestal of the present application enters or exits a tunnel, it can be used as a transportation device for construction machinery and tools, and different sizes of the pedestal can be made according to different cross sections of single-line and double-line tunnels, and the step distance of the scaffold can be adjusted by adjusting the insertion distance of the vertical rods. When construction work is carried out, the scaffold pedestal can be moved to repair and process the lining structure at different mileage positions.

[0018] (2) The length of the vertical rod of the existing scaffold is usually a standard length, and the height of the scaffold set according to the length is usually difficult to meet the actual needs. The height of the work platform can be reasonably set by raising or lowering the hydraulic oil cylinder when the scaffold of the present application is set up, and the working space can be expanded and the working efficiency can be improved when defects at the crown and haunch positions are processed.

[0019] (3) When the three-dimensional connecting mechanism of the present application is connected, the scaffold can be stably fixed in three-dimensional directions. The two half-split steel pipes of the horizontal rod connecting assembly are perpendicular in the horizontal plane and can rotate around the vertical rod connecting piece. The vertical rod is inserted into the half-round groove, and the horizontal rod is locked after being placed in the half-round groove. The inclined rod structure is placed in the U-shaped groove, the bolt passes through the bolt hole, and the steel pad plate is tightly fixed by tightening the bolt. The mutual fixation and locking of the rod pieces ensure the stability of the scaffold as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the present application together with the embodiments of the present application, and do not constitute a limitation of the present application.

[0021] In the drawings:

[0022] Figure 1 Structure diagram of the construction scaffold of the present application;

[0023] Figure 2 Sectional view of the ring-shaped clamping groove of the present application;

[0024] Figure 3 Structure diagram of the three-dimensional connecting mechanism of the present application;

[0025] Figure 4 Structure diagram of the vertical connecting assembly of the present application;

[0026] Figure 5 Structure diagram of the horizontal rod connecting assembly of the present application;

[0027] Figure 6 Sectional view of the horizontal rod connecting assembly of the present application;

[0028] Figure 7 Sectional view of the pressing locking device of the present application;

[0029] Figure 8 Detail sectional view of the cylindrical pressing rod assembly of the present application;

[0030] Figure 9 Schematic diagram of the broken line groove of the upper groove line top circular arc type after being unfolded into a plane;

[0031] Figure 10 Structure diagram of the hydraulic oil cylinder of the present application;

[0032] Figure 11 Structure diagram of the inclined strut of the present application;

[0033] Figure 12 Sectional view of the U-shaped groove of the present application;

[0034] Figure 13 Main sectional view of the resistance increasing device of the present application;

[0035] Figure 14 Structure diagram of the cylindrical pressing rod assembly and the broken line groove of the present application;

[0036] Figure 15 Structure diagram of the cylindrical pressing rod assembly of the present application;

[0037] Figure 16 Structure diagram of the broken line groove of the present application;

[0038] Figure 17 Structure diagram of the "L" type tooth condition of the present application.

[0039] Wherein: 1. base, 2. rubber layer, 3. hydraulic cylinder, 301. cylinder body, 302. piston rod, 4. scaffold pedestal, 5. roller, 6. circular level bubble, 7. ring-shaped clamping groove, 8. short steel rod, 9. vertical rod, 10. horizontal rod, 11. diagonal brace, 1101. diagonal rod, 1102. bolt, 12. three-dimensional connecting mechanism, 13. vertical connecting assembly, 14. horizontal rod connecting assembly, 15. diagonal rod connecting assembly, 16. end steel pipe, 17. middle steel pipe, 18. resistance increasing device, 1801. spring, 1802. hemispherical resistance increasing head, 1803. limiting sheet, 1804. limiting structure, 19. sleeve, 20. half-section steel pipe, 21. lock catch, 22. rotating shaft, 23. upper extension, 24. lower extension, 2401. movable groove, 2402. clamping groove, 25. U-shaped groove, 26. high-strength bolt, 27. No. 1 nut, 2701. No. 2 nut, 28. special-shaped piece, 29. bolt hole, 30. rubber pad, 31. pressing locking device, 3101. tooth condition, 3102. first spring, 3103. guide rod, 3104. embedded ball, 32. first end tooth block, 33. cylindrical pressing rod assembly, 3301. second spring, 3302. limiting block, 3303. upper stop block, 3304. annular groove, 3305. steel ball, 3306. pressing rod, 3307. upper groove line, 3308. lower groove line, 3309. fold line groove, 34. second end tooth block, 35. lower stop block. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0042] Embodiment:

[0043] Referring to the accompanying Figures 1-17The utility model provides a kind of scaffold for operating tunnel lining defect remediation construction, including hydraulic cylinder 3, scaffold pedestal 4, vertical pole 9, crossbar 10, inclined strut 11 and three-dimensional connecting mechanism 12, the hydraulic cylinder 3 is fixedly arranged in the lower end surface of scaffold pedestal 4, the hydraulic cylinder 3 includes cylinder body 301, piston rod 302, the upper end surface of piston rod 302 is fixedly connected with the lower end surface of scaffold pedestal 4, the bottom surface of cylinder body 301 is fixedly arranged with base 1.

[0044] Hydraulic cylinder 3 supports the whole support scaffold, adjusting valve is arranged on the oil inlet pipeline of hydraulic cylinder 3 to control the oil inlet speed, so as to realize the separate adjustment of the jacking speed of each hydraulic cylinder, so as to level the scaffold pedestal 4. Since the ground flatness in the operating tunnel is poor, there is an elevation difference between the inner and outer tracks of the tunnel curve section. To ensure that the base 1 closely adheres to the ground and improve the overall stability of the scaffold, a rubber adhesion layer 2 is bonded to the lower end surface of the base 1, which can provide cushioning, shock absorption and increased friction, thereby preventing the hydraulic cylinder 3 from shaking and shifting, and thereby affecting the stability of the scaffold.

[0045] The lower end surface of the scaffold pedestal 4 is rotatably provided with a roller 5 cooperating with the rail, the wheel spacing of the roller 5 is the same as the rail spacing, the surface of the roller 5 is concave, and the width of the annular groove matches the width of the railway rail, so that more stable operation can be achieved.

[0046] The geometric center of the upper end surface of the scaffold pedestal 4 is embedded with a circular level bubble 6, and the leveling of the scaffold pedestal 5 is observed by observing the position of the circular level bubble 6.

[0047] When the scaffold is transported to the construction point position, the hydraulic cylinder 3 is vertically lowered to the predetermined position, and then the adjustment of the scaffold pedestal 4 and the height pre-adjustment of the scaffold are carried out, the oil inlet speed of the hydraulic cylinder 3 is adjusted, the circular level bubble 6 on the scaffold pedestal 4 is observed, the height of each hydraulic cylinder is adjusted until the scaffold pedestal 4 reaches the horizontal state, the oil inlet of the hydraulic cylinder is closed, and the horizontal setting of the scaffold pedestal 4 and the basic setting of the scaffold height are realized.

[0048] A plurality of annular clamping grooves 7 are longitudinally arranged on both sides of the upper end surface of the scaffold pedestal 4, the annular clamping grooves 7 are embedded in the upper end surface of the scaffold pedestal 4 and are welded and fixed, the annular clamping grooves 7 are 10 cm higher than the upper end surface of the scaffold pedestal 4, a short steel rod 8 is welded and arranged in the inner center of the annular clamping groove 7, the short steel rod 8 is 15 cm higher than the upper end surface of the annular clamping groove 7, and the vertical pole 9 is inserted into the gap formed by the annular clamping groove 7 and the short steel rod 8.

[0049] The outer surface of the short steel rod 8 is radially and equidistantly provided with four resistance increasing devices 18, the spacing between the short steel rod 8 and the inner diameter of the annular clamping groove 7 is greater than the wall thickness of the vertical rod 9 by 2mm, which can ensure that the vertical rod 9 is inserted more conveniently during the erection of the scaffold, is tightly pressed by the resistance increasing device 18, and further enhances the stability of the connection of the vertical rod 9. In addition, the scaffold base 4 can be used as a transportation tool for materials and equipment when entering and exiting the tunnel.

[0050] The vertical rod 9, the horizontal rod 10 and the diagonal brace 11 are connected through a three-dimensional connecting mechanism 12.

[0051] The three-dimensional connecting mechanism 12 is composed of a vertical connecting assembly 13, a horizontal rod connecting assembly 14 and a diagonal rod connecting assembly 15, the diagonal rod connecting assembly 15 is arranged on the side wall of the vertical connecting assembly 13, and the two sides of the diagonal rod connecting assembly 15 are provided with the horizontal rod connecting assembly 14.

[0052] The vertical connecting assembly 13 includes an integrally formed end steel pipe 16 and a middle steel pipe 17, the end steel pipe 16 is arranged at both ends of the middle steel pipe 17, the outer diameter and the inner diameter of the middle steel pipe 17 are smaller than the outer diameter and the inner diameter of the end steel pipe 16, the inner diameter of the end steel pipe 16 is greater than the outer diameter of the vertical rod 9 by 2mm, so that the end steel pipe 16 can be sleeved on the vertical rod 9 without a large gap, avoiding the instability of the scaffold vertical rod at the node position, and the inner diameter of the middle steel pipe 17 is smaller than the outer diameter of the vertical rod 9. The vertical rod 9 is arranged in the end steel pipe 16, and the inner wall of the end steel pipe 16 is also radially and equidistantly provided with four resistance increasing devices 18.

[0053] The resistance increasing device 18 includes a spring 1801, a hemispherical resistance increasing head 1802 and a limiting piece 1803, a plurality of mounting grooves are formed in the outer wall of the end steel pipe 16 and the short steel rod 8, one end of the spring 1801 is fixedly arranged in the mounting groove, the other end is fixedly connected with the limiting piece 1803, the hemispherical resistance increasing head 1802 is arranged on the outer end face of the limiting piece 1803, and a limiting structure 1804 matched with the limiting piece 1803 is further arranged outside the mounting groove.

[0054] Further, the material of the hemispherical resistance increasing head 1802 is a stainless steel material with frosted outer surface.

[0055] The horizontal rod connecting assembly 14 includes a sleeve 19, a semi-split steel pipe 20, a lock catch 21 and a pressing locking device, the sleeve 19 is sleeved on the middle steel pipe 17, and in actual use, the horizontal rod connecting assembly 14 can be rotated around the middle steel pipe 17 horizontally by adding a lubricant, so as to be better rotated to the position to be fixed.

[0056] The two half-cut steel pipes 20 are integrally formed on the outer wall of the sleeve 19 at a horizontal angle of 90°, with the concave surfaces facing upwards. One side of the lock 21 is hingedly connected to the half-cut steel pipe 20 through a rotating shaft 22, and the other free side is connected to the half-cut steel pipe 20 through a pressing locking device. The horizontal rod 10 is placed in the cavity formed by the half-cut steel pipe 20 and the lock 21, and is locked through the pressing locking device.

[0057] A layer of rubber pad 30 is attached to the inner wall of the half-cut steel pipe 20, which makes the horizontal rod 10 more stable and prevents the rotation and sliding of the horizontal rod 10 through the friction and compressibility of the rubber pad.

[0058] The free side of the lock 21 is integrally formed with an upper extension 23, and the corresponding half-cut steel pipe 20 is integrally formed with a lower extension 24.

[0059] The pressing locking device 31 includes an "L"-shaped tooth condition 3101, a cylindrical pressing rod assembly 33, and a first spring 3102. The tooth condition 3101 includes an integrally formed horizontal pressing section and a rack section, and the side wall of the rack section is formed with a first end tooth block 32. The upper extension 23 is provided with a sliding groove that penetrates the side surface and the bottom surface. The tooth condition 3101 is slidingly arranged in the sliding groove. The horizontal pressing section of the tooth condition 3101 penetrates the side surface of the sliding groove, and the operator manually presses the protruding part downward. The rack section of the tooth condition 3101 penetrates the bottom surface of the sliding groove, and the first spring 3102 is arranged between the horizontal pressing section of the tooth condition 3101 and the inner bottom surface of the sliding groove. The first spring 3102 is in an elongated state in the normal state, and lifts the tooth condition 3101 to the inner top surface of the sliding groove.

[0060] A guide rod 3103 is arranged between the inner top surface and the inner bottom surface of the sliding groove, and the horizontal pressing section of the tooth condition 3101 is slidingly arranged on the guide rod 3103, which guides the sliding of the tooth condition 3101.

[0061] The lower extension 24 is provided with a through movable slot 2401 and a clamping slot 2402. The cylindrical pressing rod assembly 33 is movably arranged in the movable slot 2401, and the tooth condition 3101 is movably inserted into the clamping slot 2402 and clamped with the end of the cylindrical pressing rod assembly 33.

[0062] Furthermore, an embedded ball 3104 is rollingly arranged in the upper extension 23 and the clamping slot 2402 of the lower extension 24. The outer surface of the embedded ball 3104 is in close contact with the rack section of the tooth condition 3101, so as to ensure smooth sliding of the tooth condition 3101.

[0063] The cylindrical pressing rod assembly 33 comprises a second spring 3301, a limiting block 3302, an upper stop block 3303, a lower stop block 35 and a pressing rod 3306 movably arranged in the movable groove 2401, the upper stop block 3303 is formed on the inner wall of the upper part of the movable groove 2401, and a central hole is arranged through the center of the pressing rod 3306, the lower stop block 35 is formed on the inner wall of the lower part of the movable groove 2401, and a through hole is arranged through the center of the pressing rod 3306, the limiting block 3302 is integrally formed on the outer wall of the pressing rod 3306 and located between the upper stop block 3303 and the lower stop block 35, and the second spring 3301 is arranged between the lower end surface of the limiting block 3302 and the upper end surface of the lower stop block 35.

[0064] Further, the end of the pressing rod 3306 located in the clamping groove 2402 is integrally formed with a second end tooth block 34, and the first end tooth block 32 and the second end tooth block 34 can be clamped.

[0065] The inner side wall of the movable groove 2401 is provided with a fold line groove 3309 in a fold line shape, the lowest point of the fold line groove 3309 is located in the same horizontal plane, and the highest point and the second highest point are alternately arranged, the side wall of the limiting block 3302 is provided with an annular groove 3304, the groove depth of the annular groove 3304 and the fold line groove 3309 is the same, and two steel balls 3305 are symmetrically arranged at the joint position, the radius of the steel ball 3305 is the same as the groove depth of the annular groove 3304, and the diameter of the steel ball 3305 is greater than the gap between the annular groove 3304 and the fold line groove 3309.

[0066] Further, in order to improve the stability of the steel ball 3305 moving to the high point and the second high point of the groove 3306, the high point and the second high point of the upper groove line 3307 are in a circular arc structure.

[0067] When installing, the pressing rod 3306 is at the highest point, and the second end tooth block 34 at the end of the pressing rod 3306 does not contact the first end tooth block 32 of the tooth condition 3101 and has a certain spacing. Then, the pressing rod 3306 is pressed, and the steel ball 3305 in the annular groove 3304 of the limiting block 3302 will move along the broken line groove 3309 to the lowest point under the downward force, at which time the second end tooth block 34 moves downward and contacts the tooth root of the first end tooth block 32, and at the same time, the second spring 3301 is compressed. Then, the pressing on the pressing rod 3306 is released, and under the restoring force of the second spring 3301, the steel ball 3305 in the annular groove 3304 is subjected to an upward force and will move to this high point position adjacent to the highest point, at the same time, the second end tooth block 34 will also move upward by a certain distance, and the end of the second end tooth block 34 will be engaged in the middle position of the first end tooth block 32, thereby achieving the engagement of the second end tooth block 34 and the first end tooth block 32, further achieving the fixation of the pressing rod 3306 and the tooth condition 3101, thereby completing the fixation of the horizontal rod 10 by the half-split steel pipe 20 and the lock catch 21.

[0068] The groove 3306 includes an upper groove line 3307 and a lower groove line 3308, and the inflection point of the upper groove line 3307 moves in the same direction as the corresponding inflection point of the lower groove line 3308 by a distance greater than one diameter of the steel ball 3305. The misalignment can achieve one-way movement of the steel ball 3305 upward or downward, avoiding returning to the original position.

[0069] The diagonal rod connecting assembly 15 includes a special-shaped piece 28 which is integrally formed with the half-split steel pipes 20 and the sleeve 19 on its two adjacent sides, which can further enhance the stability of the connection.

[0070] Two U-shaped grooves 25 perpendicular to each other are formed on the special-shaped piece 28, and the diagonal brace 11 is arranged on the U-shaped groove 25 through a high-strength bolt 26. The diagonal brace 11 includes diagonal rods 1101 and a bolt 1102, the bolt 1102 is arranged in the middle of the two diagonal rods 1101, the diagonal rods 1101 are adjusted to a suitable included angle and then the bolt 1102 is fixed, thereby achieving the overall fixation of the diagonal brace 1101. The end of the diagonal rod 1101 is punched to form a bolt hole 29, the end of the diagonal rod 1101 is clamped in the U-shaped groove 25, and the high-strength bolt 26 is inserted into the bolt hole 29 at the end of the diagonal rod.

[0071] Further, the high-strength bolt 26 in the U-shaped groove 25 is provided with a first nut 27 and a second nut 2701, which further fix the inclined rod 1101. The second nut 2701 is fixed to the inner wall of the U-shaped groove 25. First, the inclined rod end bolt hole 29 is inserted between the first nut 27 and the second nut 2701, and then the high-strength bolt 26 and the first nut 27 are tightened, so that the inclined rod 1101 is completely fixed on the high-strength bolt 26.

[0072] Principle and use process of the present application:

[0073] In use, the scaffold base 4 is transported to the construction site by the roller 5, and materials and equipment are placed on the scaffold base 4. Then, according to the actual construction needs, the hydraulic oil cylinder 3 is vertically lowered to the predetermined position, and then the adjustment of the scaffold base 4 and the height pre-adjustment of the scaffold are carried out. The hydraulic oil cylinder 3 is adjusted at the same time, and the circular level bubble 6 on the scaffold base 4 is observed. The height of each hydraulic oil cylinder is adjusted until the scaffold base 4 reaches the horizontal state. The oil inlet of the hydraulic oil cylinder is closed to realize the horizontal setting of the scaffold base 4 and the basic setting of the scaffold height.

[0074] The vertical rod 9 is inserted into the gap formed by the annular clamping groove 7 and the short steel rod 8. The upper end of the vertical rod 9 is sleeved with the vertical connecting assembly 13 of the three-dimensional connecting mechanism 12. The cross rod 10 is arranged in the half-split steel pipe 20 of the three-dimensional connecting mechanism 12. The lock buckle 21 is closed, and then the horizontal pressing section of the tooth condition 3101 is pressed, so that the rack section of the tooth condition 3101 is completely inserted into the clamping groove 2402 of the lower extension 24. Then the pressing rod 3306 is pressed, so that the second end tooth block 34 and the first end tooth block 32 are clamped, and the fixing of the pressing rod 3306 and the tooth condition 3101 is further realized, so that the fixing of the half-split steel pipe 20 and the lock buckle 21 to the cross rod 10 is completed.

[0075] When installing, the pressing rod 3306 is at the highest point position, at this time the second end tooth block 34 of the pressing rod 3306 end does not contact the first end tooth block 32 of the tooth condition 3101, and both have a certain spacing. Then, the pressing rod 3306 is pressed, the steel ball 3305 in the annular groove 3304 of the limiting block 3302 will move along the broken line groove 3309 to the lowest point under the downward force, at this time the second end tooth block 34 moves downward and contacts the tooth root of the first end tooth block 32, while the second spring 3301 is compressed. Then, the pressing of the pressing rod 3306 is released, under the restoring force of the second spring 3301, the steel ball 3305 in the annular groove 3304 is subjected to an upward force and will move to this high point position adjacent to the highest point, at the same time, the second end tooth block 34 will also move upward by a certain distance, the end of the second end tooth block 34 will be engaged in the middle position of the first end tooth block 32, thereby realizing the engagement of the second end tooth block 34 and the first end tooth block 32, further realizing the fixation of the pressing rod 3306 and the tooth condition 3101, thereby completing the fixation of the half-split steel pipe 20 and the lock catch 21 to the horizontal rod 10.

[0076] Finally, the diagonal brace 11 is arranged on the U-shaped groove 25 through the high-strength bolt 26 to realize the fixation of the diagonal brace 11. Finally, the installation of the entire construction scaffold for operating tunnel lining defect treatment is completed.

[0077] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A scaffold for operating a lining defect remediation construction in a tunnel, characterized by: The utility model provides a kind of three-dimensional connection mechanism, including hydraulic cylinder (3), scaffold pedestal (4), vertical pole (9), crossbar (10), inclined strut (11) and three-dimensional connection mechanism (12), the hydraulic cylinder (3) is fixedly arranged in the lower end surface of scaffold pedestal (4), the upper end surface of scaffold pedestal (4) is longitudinally provided with two rows of annular clamping slots (7), the annular clamping slot (7) is provided with short steel pole (8), the vertical pole (9) is inserted in the clearance formed by annular clamping slot (7) and short steel pole (8), and the vertical pole (9), crossbar (10) and inclined strut (11) are connected by three-dimensional connection mechanism (12); The three-dimensional connection mechanism (12) is composed of a vertical connecting component (13), a crossbar connecting component (14) and an inclined rod connecting component (15), the inclined rod connecting component (15) is arranged on the side wall of the vertical connecting component (13), and the two sides of the inclined rod connecting component (15) are provided with the crossbar connecting component (14); The crossbar connecting component (14) includes a sleeve (19), a half-split steel pipe (20), a lock catch (21) and a pressing locking device (31), the sleeve (19) is rotatably sleeved on the middle steel pipe (17), the two half-split steel pipes (20) are integrally formed on the outer side wall of the sleeve (19) at a horizontal angle of 90°, and the concave surfaces face upward, one side of the lock catch (21) is hingedly connected with the half-split steel pipe (20), and the other free side is connected with the half-split steel pipe (20) through the pressing locking device, the free side of the lock catch (21) is formed with an upper extension (23), and the corresponding half-split steel pipe (20) is formed with a lower extension (24); The pressing locking device (31) includes a "L"-shaped tooth condition (3101), a cylindrical pressing rod component (33) and a first spring (3102), the upper extension (23) is provided with a sliding groove penetrating through the side surface and the bottom surface, the tooth condition (3101) is slidingly arranged in the sliding groove, the horizontal pressing section of the tooth condition (3101) penetrates out of the side surface of the sliding groove, the rack section of the tooth condition (3101) penetrates out of the bottom surface of the sliding groove, the first spring (3102) is arranged between the horizontal pressing section of the tooth condition (3101) and the inner bottom surface of the sliding groove, a guide rod (3103) is arranged between the inner top surface and the inner bottom surface of the sliding groove, the horizontal pressing section of the tooth condition (3101) is slidingly arranged on the guide rod (3103), the lower extension (24) is provided with a through movable slot (2401) and a clamping groove (2402), the cylindrical pressing rod component (33) is movably arranged in the movable slot (2401), the tooth condition (3101) can be movably inserted into the clamping groove (2402) and clamped with the end of the cylindrical pressing rod component (33). The cylindrical pressing rod assembly (33) comprises a second spring (3301), a limiting block (3302), an upper stop block (3303), a lower stop block (35) and a pressing rod (3306), the pressing rod (3306) is movably arranged in the movable groove (2401), the upper stop block (3303) is formed on the inner wall of the upper part of the movable groove (2401), and a central hole is arranged through the center of the pressing rod (3306), the lower stop block (35) is formed on the inner wall of the lower part of the movable groove (2401), the central holes of the upper stop block (3303) and the lower stop block (35) are arranged through the pressing rod (3306), the limiting block (3302) is integrally formed on the outer wall of the pressing rod (3306) and is located between the upper stop block (3303) and the lower stop block (35), and the second spring (3301) is arranged between the lower end surface of the limiting block (3302) and the upper end surface of the lower stop block (35). The inner side wall of the movable groove (2401) is provided with a fold line groove (3309) in a fold line shape, the lowest point of the fold line groove (3309) is located in the same horizontal plane, the highest point and the second highest point are alternately arranged, the side wall of the limiting block (3302) is provided with an annular groove (3304), the groove depth of the annular groove (3304) is the same as that of the fold line groove (3309), and two steel balls (3305) are symmetrically arranged at the joint position, the radius of the steel ball (3305) is the same as the groove depth of the annular groove (3304). The groove (3306) comprises an upper groove line (3307) and a lower groove line (3308), and the inflection points of the upper groove line (3307) are moved in the same direction by a distance greater than the diameter of one steel ball (3305) than the corresponding inflection points of the lower groove line (3308).

2. The scaffold for operating the construction for remedying defects of a tunnel lining according to claim 1, characterized in that: The vertical connecting assembly (13) comprises an integrally formed end steel pipe (16) and a middle steel pipe (17), the end steel pipe (16) is arranged at both ends of the middle steel pipe (17), the vertical rod (10) is arranged in the end steel pipe (16), the inner wall of the end steel pipe (16) is provided with a resistance increasing device (18), the resistance increasing device (18) comprises a spring (1801), a hemispherical resistance increasing head (1802) and a limiting piece (1803), a plurality of mounting grooves are arranged on the outer wall of the end steel pipe (16), one end of the spring (1801) is fixedly arranged in the mounting groove, the other end is fixedly connected with the limiting piece (1803), the hemispherical resistance increasing head (1802) is arranged on the outer end surface of the limiting piece (1803), and the outer part of the mounting groove is further provided with a limiting structure (1804) matched with the limiting piece (1803).

3. A scaffold for remedial work on defects in a tunnel lining in operation according to claim 2, characterised in that: The inclined rod connecting assembly (15) comprises a profiled piece (28) which is integrally formed with the half-cut steel pipes (20) on its two adjacent sides, two U-shaped grooves (25) which are perpendicular to each other are formed in the profiled piece (28), the inclined rods (11) are arranged on the U-shaped grooves (25) through high-strength bolts (26), the inclined rods (11) comprise inclined rods (1101) and bolts (1102), the bolts (1102) are arranged in the middle of the two inclined rods (1101), bolt holes (29) are formed in the ends of the inclined rods (1101), the ends of the inclined rods (1101) are clamped in the U-shaped grooves (25), and the high-strength bolts (26) are inserted into the bolt holes (29) at the ends of the inclined rods.

4. The scaffold for remedying defects in lining of a tunnel in operation according to claim 3, characterized in that: The hydraulic oil cylinder (3) comprises a cylinder body (301) and a piston rod (302), the cylinder body (301) is fixedly connected to the base (1), the lower end surface of the base (1) is attached with a rubber bonding layer (2), the upper end surface of the piston rod (302) is fixedly connected with the lower end surface of the scaffold pedestal (4), and the lower end surface of the scaffold pedestal (4) is provided with a roller (5) matched with the rail.

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