Secondary lining comprehensive installation device

Abstract

The utility model discloses a secondary lining comprehensive installation device, which relates to the technical field of building construction assistive devices and comprises a back plate, an upper hollow square-opening straight frame, a lower hollow square-opening straight frame and an I-shaped vertical beam which is arranged on the outer wall of the left side of the upper hollow square-opening straight frame and the outer wall of the left side of the lower hollow square-opening straight frame along a Y axis in a sliding manner, wherein the upper hollow square-opening straight frame and the lower hollow square-opening straight frame are respectively fixed at two ends of the surface of the back plate; a Y-axis lead screw linear module used for driving the I-shaped vertical beam to slide in the Y-axis direction is installed in the lower hollow square-opening straight frame. The formwork is attached to the outer side of the water stop belt, the position of the double-cylinder hydraulic pressure applying assembly is adjusted through the Y-axis lead screw linear module and the X-axis lead screw linear module, the double-cylinder hydraulic pressure applying assembly is made to make contact with the formwork, the formwork is pressed tightly through the double-cylinder hydraulic pressure applying assembly, and the formwork is pressed tightly through the X-axis lead screw linear module and the Y-axis lead screw linear module. The extending area of the embedded type water stop belt is tightly pressed by the formwork and the double-cylinder hydraulic pressure applying assembly, and in the process, bolts or clamps or welding connecting pieces are not needed any more to achieve fastening of the formwork.

Description

Technical Field

[0001] This utility model relates to the field of building construction auxiliary equipment technology, specifically a secondary lining integrated installation device. Background Technology

[0002] During tunnel secondary lining construction, ensuring the correct installation and effective waterproofing of the embedded waterstop is crucial. The core of the entire process lies in the precise positioning and secure fixing of the waterstop to form a reliable waterproof barrier, effectively preventing groundwater from seeping into the structure. First, the secondary lining trolley must be accurately positioned to ensure construction precision. Then, the waterstop is placed precisely in the designated position and firmly fixed to the construction joint of the reinforced concrete structure using effective measures. This step provides a solid foundation for subsequent sealing and waterproofing. Next, installing the wooden end formwork is a vital step in ensuring the concrete's seal. The formwork must be tightly fitted against the rock wall, pressing down on the exposed portion of the waterstop to prevent displacement or loosening. Simultaneously, all gaps between the formwork, the rock wall, and the waterstop are sealed to prevent grout leakage and avoid quality defects such as honeycomb, pitting, or voids, ensuring the overall density and structural strength of the concrete.

[0003] In summary, the embedded waterstop (usually a rubber waterstop) needs to be placed centered on the secondary lining reinforcement structure along the construction joint (i.e., the boundary between the two sections of secondary lining). Wooden end templates should be installed at both ends of the trolley (i.e., at the construction joint). These templates must be tightly fitted against the initial support face (rock wall) of the tunnel, leaving no excessive gaps, and the templates must press firmly against the outer part of the waterstop (i.e., the side facing the concrete to be poured). Through this centered pre-embedding, after the concrete has solidified, half of the waterstop will be firmly embedded in the concrete of the first poured section, and the other half will be embedded in the concrete of the subsequent poured section, straddling the construction joint. When gaps appear at the construction joint due to concrete shrinkage, temperature changes, or slight deformation, the waterstop uses its elastic deformation ability to stop water and seal, becoming a permanent and important waterproof barrier. During operation, the templates are mainly secured laterally and longitudinally with bolts, clamps, or welded connectors to ensure integrity. During construction, workers need to repeatedly move, align, and insert bolts or clamps in confined spaces, and then manually tighten or weld them one by one. Each step requires fine adjustment to meet sealing requirements. Especially when there are slight deviations between the templates and the irregular initial support rock wall or the trolley panel, repeated corrections are time-consuming. After the concrete is poured, removing the templates and connectors becomes another obstacle to progress. Bolts may seize due to concrete slurry seepage or corrosion, requiring a lot of time to knock, lubricate, or even cut. Clamps may deform and become stuck under high pressure, requiring strong prying and removal, which can easily damage the templates and further affect the progress of the secondary lining construction. Utility Model Content

[0004] The purpose of this utility model is to provide a secondary lining integrated installation device, which arranges several double-cylinder hydraulic pressure assemblies on the outer wall of the end of the secondary lining trolley, with the double-cylinder hydraulic pressure assemblies facing the side of the concrete to be poured. After the embedded waterstop is placed in the center along the construction joint on the secondary lining reinforcement structure, the template is attached to the outer part of the waterstop. The position of the double-cylinder hydraulic pressure assembly is adjusted by the Y-axis lead screw linear module and the X-axis lead screw linear module so that the double-cylinder hydraulic pressure assembly contacts the template. The double-cylinder hydraulic pressure assembly is used to press the template tightly until the extension area of ​​the embedded waterstop is pressed tightly by the template and the double-cylinder hydraulic pressure assembly, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary lining integrated installation device, comprising a back plate, an upper hollow square frame and a lower hollow square frame fixed at both ends of the back plate surface, and an I-shaped vertical beam slidably installed along the Y-axis on the left outer wall of the upper and lower hollow square frames. A Y-axis lead screw linear module for driving the I-shaped vertical beam to slide along the Y-axis is installed inside the lower hollow square frame. A horizontal frame is fixed on the outer wall of the I-shaped vertical beam away from the back plate, and an X-axis lead screw linear module is installed on the back of the horizontal frame. A right support arm is installed at the moving end of the X-axis lead screw linear module. The right support arm slides along the X-axis direction within the horizontal frame via the drive of the X-axis lead screw linear module. A dual-cylinder hydraulic pressure assembly is installed at the end of the right support arm away from the horizontal frame.

[0006] Preferably, through holes for bolts are provided at the corners of the back plate surface, and a connecting plate is fixed between the opposite outer walls of the upper hollow square frame and the lower hollow square frame.

[0007] Preferably, the back plate, the upper hollow square frame, and the lower hollow square frame are all made of alloy steel, and the straight distance between the opposite outer walls of the upper hollow square frame and the lower hollow square frame is 50cm to 80cm.

[0008] Preferably, the dual-cylinder hydraulic pressure assembly includes a left support arm hinged to the upper end of the right support arm, a primary hydraulic cylinder hinged to one end inside the right support arm, and a pressure arm hinged to the lower end of the left support arm. A secondary hydraulic cylinder is also hinged to the interior of the left support arm.

[0009] Preferably, the piston rod of the first-stage hydraulic cylinder extends to the interior of the left support arm and is hinged to the left support arm, and the piston rod of the second-stage hydraulic cylinder is hinged to the top of the pressure arm.

[0010] Preferably, the X-axis lead screw linear module includes two bearing seats fixed on the outer wall of one side of the horizontal frame, a threaded shaft rotatably mounted between the two bearing seats, and a nut assembly installed at the threaded position at one end of the threaded shaft surface. The upper end of the nut assembly extends into the interior of the horizontal frame and is bolted to the right support arm. One end of the threaded shaft passes through the exterior of one of the bearing seats and is fixed with a handwheel.

[0011] Preferably, a protruding foot is integrally formed at the opening position on one side of the outer wall of the right support arm, and the protruding foot and the upper end of the nut pair are bolted to each other. A track for guiding the sliding of the nut pair is fixed between the two bearings.

[0012] Preferably, a rectangular slot is provided on one outer wall of the horizontal frame for the nut assembly to enter into the horizontal frame, and two guide strips are integrally formed on the inner wall of the horizontal frame on one side of the rectangular slot, and the right support arm slides with the horizontal frame through the guide strips.

[0013] Preferably, a T-shaped back seat is bolted to both the top and bottom of the I-shaped upright beam. An internally threaded hollow column is welded and fixed to the outer wall of the T-shaped back seat on the side away from the end of the I-shaped upright beam, and an externally threaded foot support is installed on the internal thread of the internally threaded hollow column.

[0014] Preferably, a rubber pad is adhered to the lower surface of the disc end of the external threaded foot support.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This secondary lining integrated installation device, through a structure consisting of a back plate seat, a Y-axis screw linear module in a lower hollow square frame, an I-beam, an X-axis screw linear module, a horizontal frame, and a double-cylinder hydraulic pressure assembly, arranges several double-cylinder hydraulic pressure assemblies on the end outer wall of the secondary lining trolley, with the double-cylinder hydraulic pressure assemblies facing the side of the concrete to be poured. After the embedded waterstop is placed centered on the secondary lining reinforcement structure along the construction joint, the template is attached to the waterstop. The outer part is adjusted by the Y-axis lead screw linear module and the X-axis lead screw linear module to make the double cylinder hydraulic pressure assembly contact the template. The double cylinder hydraulic pressure assembly is used to press the template until the extension area of ​​the embedded waterstop is pressed by the template and the double cylinder hydraulic pressure assembly. In this process, there is no need to use bolts, clamps or welded connectors to fasten the template. Moreover, the structural solution of using hydraulic pressure assembly to replace traditional fasteners has the advantages of simple operation, flexible adjustment, strong adaptability, safety and reliability, and easy disassembly.

[0016] This system completely eliminates physical fastening methods such as bolts, clamps, or welding. Workers no longer need to handle, align, tighten, or weld numerous scattered parts in confined spaces, eliminating the time and safety risks associated with manual point-by-point operations. The dual-cylinder hydraulic pressure assembly synchronously drives multiple hydraulic cylinders through a centralized control valve group, achieving uniform pressure on the entire template. Operators only need to start the hydraulic pump station to complete the manual work that would take hours in traditional processes within minutes, thus significantly shortening the end formwork installation time. Secondly, the Y and X-axis screw modules enable position adjustment of the dual-cylinder hydraulic pressure assembly, ensuring that the assembly fits snugly against the entire template area. Even on extremely irregular rock wall surfaces, it can eliminate gaps through zoned pressure compensation, reducing grout leakage channels. This adapts to different construction environments and complex structural forms, reducing poor sealing or deformation caused by deviations, thereby ensuring construction quality.

[0017] After the final secondary lining concrete is poured, only the hydraulic system needs to be depressurized, and the formwork will naturally separate from the double-cylinder hydraulic pressure assembly, realizing the rapid loosening and removal of the formwork. At this time, the formwork is not damaged by pry bars or welding burns, and the formwork is evenly stressed to avoid local deformation, significantly extending the number of formwork turnovers, reducing overall costs, and allowing the formwork to be quickly transferred to the next working face to support continuous lining construction. It is especially suitable for large projects with multiple working faces advancing in parallel, and the overall controllability of the construction period is greatly enhanced. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the dual-cylinder hydraulic pressure assembly in Embodiment 2 of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the X-axis lead screw linear module according to Embodiment 3 of this utility model;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the horizontal frame in Embodiment 3 of this utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the I-beam vertical beam in Embodiment 4 of this utility model.

[0026] In the diagram: 1. Back plate; 2. Upper hollow square frame; 3. Lower hollow square frame; 4. I-beam upright; 401. T-shaped back support; 402. Internally threaded hollow column; 403. Externally threaded foot support; 5. Y-axis lead screw linear module; 6. Horizontal frame; 601. Guide bar; 602. Rectangular hollow groove; 7. X-axis lead screw linear module; 701. Shaft seat; 702. Threaded shaft; 703. Nut pair; 704. Handwheel; 8. Right support arm; 801. Protruding foot; 9. Dual-cylinder hydraulic pressure assembly; 901. Primary hydraulic cylinder; 902. Left support arm; 903. Secondary hydraulic cylinder; 904. Pressure arm. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example 1, by Figures 1 to 4 As shown, this utility model includes a back plate 1, an upper hollow square frame 2 and a lower hollow square frame 3 fixed at both ends of the surface of the back plate 1, and an I-shaped vertical beam 4 slidably installed along the Y-axis on the left outer wall of the upper hollow square frame 2 and the lower hollow square frame 3. The back plate 1 is firmly installed on the outer wall of the end of the secondary lining trolley to ensure that the bearing surface of the back plate 1 is parallel to the direction of the construction joint.

[0029] The hollow square frame 3 houses a Y-axis linear screw module 5 for driving the I-beam 4 to slide along the Y-axis. A horizontal frame 6 is fixed to the outer wall of the I-beam 4 away from the back plate 1, and an X-axis linear screw module 7 is installed on the back of the horizontal frame 6. A right support arm 8 is installed at the moving end of the X-axis linear screw module 7. The right support arm 8 slides along the X-axis direction in the horizontal frame 6 driven by the X-axis linear screw module 7. A double-cylinder hydraulic pressure assembly 9 is installed at the end of the right support arm 8 away from the horizontal frame 6. The Y-axis linear screw module 5, with its high precision and repeatability, enables the smooth and precise movement of the I-beam 4, horizontal frame 6, X-axis linear screw module 7, right support arm 8, and double-cylinder hydraulic pressure assembly 9 along the Y-axis direction. Thus, when adjusting the template or positioning the waterstop, the Y-axis linear screw module 5 can provide stable linear motion, ensuring the accuracy of the pressure position.

[0030] The back plate 1 has through holes at the corners for bolts to pass through. A connecting plate is fixed between the opposite outer walls of the upper hollow square frame 2 and the lower hollow square frame 3. The closed cross-section structure of the upper hollow square frame 2 and the lower hollow square frame 3 provides high bending and torsional stiffness for the Y-axis screw linear module 5, eliminates the risk of deviation during long-stroke propulsion, and the hollow design reduces the moment of inertia. The high thrust characteristic of the Y-axis screw linear module 5 can overcome the frictional resistance between the template and the initial support rock wall.

[0031] The back plate 1, the upper hollow square frame 2, and the lower hollow square frame 3 are all made of alloy steel. The straight-line distance between the opposite outer walls of the upper hollow square frame 2 and the lower hollow square frame 3 is 50cm to 80cm. The back plate 1, as an important component of the support and positioning device, is rigidly bolted to the end of the secondary lining trolley. It has good rigidity and stability and can effectively support the upper hollow square frame 2, the lower hollow square frame 3, the I-beam 4, and other components, ensuring that the device does not deform or shift during construction.

[0032] Example 2, based on Example 1, is... Figure 5 The dual-cylinder hydraulic pressure assembly 9 includes a left support arm 902 hinged to the upper end of the right support arm 8, a primary hydraulic cylinder 901 hinged to one end inside the right support arm 8, and a pressure arm 904 hinged to the lower end of the left support arm 902. A secondary hydraulic cylinder 903 is also hinged inside the left support arm 902. The piston rod of the primary hydraulic cylinder 901 extends into the left support arm 902 and is hinged thereto. The piston rod of the secondary hydraulic cylinder 903 is hinged to the top end of the pressure arm 904. When the H-beam... After the upright beam 4, horizontal frame 6, X-axis lead screw linear module 7, right support arm 8, and double cylinder hydraulic pressure assembly 9 approach the template, the workers activate the first-stage hydraulic cylinder 901 and the second-stage hydraulic cylinder 903 through the external hydraulic station. The first-stage hydraulic cylinder 901 pushes the left support arm 902 to swing around the upper end of the right support arm 8, while the second-stage hydraulic cylinder 903 drives the pressure arm 904 to swing around the lower end of the left support arm 902 to adjust the angle of the pressure arm 904 and ensure that the pressure arm 904 is in close contact with the template and waterstop to avoid gaps or deviations.

[0033] The hydraulic system is highly adjustable, enabling precise pressure control and ensuring the formwork remains stable during construction, preventing deformation or displacement. The use of the dual-cylinder hydraulic pressure assembly also significantly reduces manual operation, improves construction speed and safety, and reduces the possibility of errors.

[0034] Example 3, based on Example 1, is... Figure 6 and Figure 7The X-axis linear screw module 7 includes two bearing seats 701 fixed on the outer wall of one side of the cross frame 6, a threaded shaft 702 rotatably mounted between the two bearing seats 701, and a nut pair 703 installed at the threaded position at one end of the surface of the threaded shaft 702. The upper end of the nut pair 703 extends into the interior of the cross frame 6 and is bolted to the right support arm 8. One end of the threaded shaft 702 passes through the exterior of one of the bearing seats 701 and is fixed with a handwheel 704. When adjusting the X-axis position of the right support arm 8 and the dual-cylinder hydraulic pressure assembly 9 through the X-axis linear screw module 7, the handwheel 704 is manually rotated. The handwheel 704 drives the threaded shaft 702 to rotate, and then the threaded shaft 702 drives the nut pair 703, the right support arm 8, and the dual-cylinder hydraulic pressure assembly 9 to move linearly along the X-axis, so as to flexibly match different cross-sectional widths and adapt to the tunnel transition section without replacing components.

[0035] A protruding foot 801 is integrally formed at the opening position on one side of the outer wall of the right support arm 8. The upper end of the protruding foot 801 and the nut pair 703 are bolted together. A track for guiding the nut pair 703 to slide is fixed between the two bearing seats 701. A rectangular hollow groove 602 is provided on one side of the outer wall of the cross frame 6 for the nut pair 703 to enter the cross frame 6. The rectangular hollow groove 602 allows the upper end of the nut pair 703 to enter the X-axis lead screw linear module 7. The nut pair 703 is bolted to the protruding foot 801 so that the right support arm 8 and the double cylinder hydraulic pressure assembly 9 can be pulled and moved by the X-axis lead screw linear module 7.

[0036] Two guide bars 601 are integrally formed on the inner wall of the horizontal frame 6 on one side of the rectangular hollow groove 602. The right support arm 8 slides with the horizontal frame 6 through the guide bars 601. A guide rail for guiding the threaded shaft 702 to move linearly is also installed between the two bearing seats 701. The guide bars 601 also assist the lower end of the right support arm 8 to slide stably, thereby providing smooth linear movement during construction, reducing vibration and deviation, and ensuring the flatness and positional accuracy of the template.

[0037] Example 4, based on Example 1, is... Figure 8 As shown, T-shaped back seats 401 are bolted to both the top and bottom of the I-shaped upright beam 4. An internally threaded hollow column 402 is welded and fixed to the outer wall of the T-shaped back seat 401 on the side away from the end of the I-shaped upright beam 4. An externally threaded foot support 403 is installed on the internal thread of the internally threaded hollow column 402. In order to further increase the application range of the double-cylinder hydraulic pressure assembly 9 on the template and to initially reinforce the template, the externally threaded foot support 403 can be rotated to finely adjust its extension and retraction in the internally threaded hollow column 402. After the Y-axis screw linear module 5 has adjusted the position of the double-cylinder hydraulic pressure assembly 9, the operator can manually rotate the externally threaded foot support 403 so that the disc end of the externally threaded foot support 403 gradually approaches the outside of the template and presses the template tightly against the embedded waterstop.

[0038] The upper thread of the external threaded foot support 403 is installed in the internal threaded hollow column 402, while the T-shaped back support 401 is bolted to the upper or lower end of the I-shaped upright beam 4, so as to realize the detachable function of the T-shaped back support 401, the internal threaded hollow column 402, the external threaded foot support 403 and the I-shaped upright beam 4. If the threads of the external threaded foot support 403 are worn or deformed, only a single component needs to be replaced instead of the entire structure.

[0039] A rubber pad is adhered to the lower surface of the disc end of the external threaded foot support 403. After the rubber pad is adhered to the lower surface of the disc end of the external threaded foot support 403, the friction between the external threaded foot support 403 and the template contact surface can be enhanced, preventing slippage or slippage during use.

[0040] In this embodiment, the back plate 1 is first firmly installed on the outer wall of the end of the secondary lining trolley, ensuring that the bearing surface of the back plate 1 is parallel to the direction of the construction joint, while the Y-axis screw linear module 5 in the lower hollow square frame 3 is in the initial contraction position; the embedded waterstop is strictly centered and laid at the predetermined position of the construction joint of the secondary lining reinforcement, and temporarily fixed to the main reinforcement with special clips to ensure that it is straight and without twisting; a single or multi-section combined wooden template is placed close to the outside of the waterstop, with the back of the template facing the double-cylinder hydraulic pressure assembly 9, and manually assisted to temporarily lean the upper edge of the template against the initial support rock wall, and the lower edge is embedded in the invert arch leveling layer, at which time the template is located on the outer part of the waterstop; the operator manually operates the Y-axis screw linear module 5 to drive the horizontal frame 6, X-axis screw linear module 7, right support arm 8, and double-cylinder hydraulic pressure assembly 9 to advance along the tunnel axis until the front end of the double-cylinder hydraulic pressure assembly 9 approaches the back of the template, and then operates the X-axis screw The linear module 7 drives the right support arm 8 and its dual-cylinder hydraulic pressure assembly 9 to move laterally along the construction joint, covering the entire width of the template, so that the front end of the dual-cylinder hydraulic pressure assembly 9 can be aligned with the back of the template. After the position of the dual-cylinder hydraulic pressure assembly 9 is adjusted, observe whether the contact line between the template and the waterstop is flush. After confirming that the entire area is correctly aligned, start the dual-cylinder hydraulic pressure assembly 9 through the external hydraulic station. The dual-cylinder hydraulic pressure assembly 9 evenly presses the entire template onto the waterstop. The outer extension area of ​​the waterstop is continuously compressed by linear pressure to form a wrinkle-free sealing interface. Then, close-cell foam strips or sealant are quickly embedded along the perimeter of the template to further block potential grout leakage paths. After the concrete has set, operate the hydraulic station to depressurize and reset each dual-cylinder hydraulic pressure assembly 9, and retract the Y-axis screw linear module 5 and X-axis screw linear module 7 in sequence. After clearing obstacles, remove the template. There is no violent disassembly throughout the process, and the template damage is low.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A secondary lining integrated installation device, characterized in that: The back plate (1) includes an upper hollow square frame (2) and a lower hollow square frame (3) fixed at both ends of the back plate (1), and an I-beam (4) slidably installed along the Y-axis on the left outer wall of the upper hollow square frame (2) and the lower hollow square frame (3). The lower hollow square frame (3) has a Y-axis lead screw linear module (5) installed inside to drive the I-beam (4) to slide along the Y-axis. The I-beam (4) is far away from the back plate (1). A horizontal frame (6) is fixed on one side of the outer wall of the back plate (1), and an X-axis lead screw linear module (7) is installed on the back of the horizontal frame (6). A right support arm (8) is installed on the moving end of the X-axis lead screw linear module (7). The right support arm (8) slides in the horizontal frame (6) along the X-axis direction by being driven by the X-axis lead screw linear module (7). A double-cylinder hydraulic pressure assembly (9) is installed on the end of the right support arm (8) away from the horizontal frame (6).

2. The secondary lining integrated installation device according to claim 1, characterized in that: The back plate (1) has through holes at the corners of its surface for bolts to pass through, and a connecting plate is fixed between the opposite outer walls of the upper hollow square frame (2) and the lower hollow square frame (3).

3. The secondary lining integrated installation device according to claim 1, characterized in that: The back panel (1), the upper hollow square frame (2), and the lower hollow square frame (3) are all made of alloy steel. The straight distance between the opposite outer walls of the upper hollow square frame (2) and the lower hollow square frame (3) is 50cm to 80cm.

4. The secondary lining integrated installation device according to claim 1, characterized in that: The dual-cylinder hydraulic pressure assembly (9) includes a left support arm (902) hinged to the upper end of the right support arm (8), a first-stage hydraulic cylinder (901) hinged to one end inside the right support arm (8), and a pressure arm (904) hinged to the lower end of the left support arm (902). A second-stage hydraulic cylinder (903) is also hinged inside the left support arm (902).

5. The secondary lining integrated installation device according to claim 4, characterized in that: The piston rod of the first-stage hydraulic cylinder (901) extends to the interior of the left support arm (902) and is hinged to the left support arm (902). The piston rod of the second-stage hydraulic cylinder (903) is hinged to the top of the pressure arm (904).

6. The secondary lining integrated installation device according to claim 1, characterized in that: The X-axis lead screw linear module (7) includes two bearing seats (701) fixed on the outer wall of one side of the horizontal frame (6), a threaded shaft (702) rotatably installed between the two bearing seats (701), and a nut pair (703) installed at the thread position at one end of the surface of the threaded shaft (702). The upper end of the nut pair (703) extends into the interior of the horizontal frame (6) and is bolted to the right support arm (8). One end of the threaded shaft (702) passes through the exterior of one of the bearing seats (701) and is fixed with a handwheel (704).

7. The secondary lining integrated installation device according to claim 6, characterized in that: The right support arm (8) has an integrally formed protrusion (801) at the opening position on one side of the outer wall. The upper ends of the protrusion (801) and the nut pair (703) are bolted to each other. A track for guiding the nut pair (703) to slide is fixed between the two bearings (701).

8. The secondary lining integrated installation device according to claim 6, characterized in that: A rectangular slot (602) is provided on one side of the outer wall of the horizontal frame (6) for the nut pair (703) to enter into the horizontal frame (6). Two guide strips (601) are integrally formed on the inner wall of the horizontal frame (6) on one side of the rectangular slot (602). The right support arm (8) slides with the horizontal frame (6) through the guide strips (601).

9. The secondary lining integrated installation device according to claim 1, characterized in that: The top and bottom ends of the I-beam (4) are bolted with T-back seats (401). The outer wall of the T-back seat (401) away from the end of the I-beam (4) is welded with an internally threaded hollow column (402), and the internal thread of the internally threaded hollow column (402) is fitted with an externally threaded foot support (403).

10. A secondary lining integrated installation device according to claim 9, characterized in that: A rubber pad is adhered to the lower surface of the disc end of the external threaded foot support (403).

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