Quick self-stabilizing dismounting and mounting connecting device for light-weight steel ring splicing equipment

Abstract

The application provides a quick self-stabilizing dismounting and connecting device for light-weight steel ring splicing equipment, relates to the field of tunnel engineering, and comprises a taper sleeve connected to a first module, the inner wall of the taper sleeve forms an inner taper surface gradually expanding towards a second module, the large-diameter end of the inner taper surface is provided with an opening, and the small-diameter end is provided with a through hole; an insertion head connected to the second module comprises an outer taper body matched with the inner taper surface and a connecting section connected to the outer taper body; a pulling mechanism arranged on the first module is used for axially pulling the insertion head along the taper sleeve so that the outer taper body is attached to the inner taper surface; and a locking mechanism arranged on the first module is used for locking the insertion head. The application realizes quick centering, reliable locking and safe interlocking of the modules in a limited space of a tunnel, and solves the problems of low assembly efficiency and insufficient connection safety of the existing flange bolt connection.

Description

Technical Field

[0001] This application relates to the field of tunnel engineering technology, and in particular to a rapid self-stabilizing disassembly and assembly connection device for lightweight steel ring splicing equipment. Background Technology

[0002] The reinforcement and maintenance of subway tunnels differs from conventional underground engineering projects such as highway tunnels. On the one hand, subway lines typically only schedule maintenance work during non-operating nighttime hours, resulting in a short continuous window for construction. On the other hand, the tunnel cross-section also needs to accommodate various facilities such as tracks, cables, and pipelines, leaving very limited space for the placement of construction equipment and the rotation of machinery. Therefore, implementing steel ring reinforcement or repair work in subway tunnels is subject to significant constraints in both time and space.

[0003] During the initial tunnel excavation stage, the commonly used large shield tunneling machine segment assemblers are bulky and heavy, relying on the movement of the entire machine to transport and assemble segments. While suitable for simultaneous assembly during shield tunneling, they are not suitable for later reinforcement or partial maintenance of existing subway tunnels. If it is necessary to replace or add steel ring components within an existing tunnel, traditional large assembly equipment often cannot enter or is difficult to operate within the limited cross-section.

[0004] Due to the aforementioned limitations, the industry has gradually begun to adopt mobile units such as small chassis and small lifting arms, equipped with grippers such as vacuum suction cups and mechanical clamps at the end for transporting and positioning steel ring components within tunnels. Meanwhile, to facilitate equipment entry and exit from tunnels and manual or small lifting equipment transport, the steel ring splicing equipment is often disassembled into several modules of suitable weight and size for transport, and each module needs to be assembled on-site within the tunnel.

[0005] In existing technologies, the connection between modules typically still uses a rigid connection method with flanges and multiple sets of high-strength bolts. Although this type of connection structure is mature, it has revealed several shortcomings in the confined space and short-term operation environment of subway tunnels: First, most bolts require manual alignment, insertion, and tightening one by one, which is extremely time-consuming and labor-intensive in the narrow space. Even slight deviations in the bolt holes require repeated adjustments, seriously affecting the overall assembly efficiency. Second, the alignment of existing rigid connectors mainly relies on operators using pry bars, hammers, etc. for repeated correction, which is not only labor-intensive but also prone to positioning errors, affecting the posture accuracy and operation quality of the steel ring splicing equipment in the tunnel. Third, under vibration and impact conditions, bolt connections are at risk of loosening, and the equipment is in a state of incomplete and unreliable connection before all bolts are tightened. If the relevant mechanisms are accidentally activated, it can easily lead to safety hazards. Summary of the Invention

[0006] To address the shortcomings of existing modular connection methods in subway tunnel steel ring splicing equipment, such as insufficient assembly efficiency, automatic alignment capability, and safety during connection and use, this application provides a rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment.

[0007] The technical solution of the quick self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment provided in this application is as follows:

[0008] A rapid, self-stabilizing assembly / disassembly connection device for lightweight steel ring splicing equipment, used to connect a first module and a second module, comprising:

[0009] A tapered sleeve is connected to the first module. Its inner wall forms an inner tapered surface that gradually expands toward the second module. The large-diameter end of the inner tapered surface is open, and the small-diameter end is narrowed to form a through hole. A shoulder is formed around the bottom of the through hole.

[0010] An insert head, connected to the second module, includes an outer cone adapted to the inner conical surface and a connecting section connected to the outer cone. The outer cone is inserted into the conical sleeve from the large-diameter end of the inner conical surface, and the connecting section protrudes from the conical sleeve through the through hole.

[0011] A pulling mechanism, mounted on the first module, is used to pull the insertion head along the axial direction of the cone sleeve, so that the outer cone body fits against the inner cone surface.

[0012] A locking mechanism, located on the first module, is used to lock the insertion head.

[0013] Furthermore, the end of the connecting section is provided with a lifting lug;

[0014] The pulling mechanism includes a pulling bracket, a pulling drive, and a hook. The pulling bracket is connected to the first module. The pulling drive includes a cylinder, a piston rod, and a driving unit. The cylinder is connected to the pulling bracket. The piston rod slides along the cylinder under the drive unit. A flipping bracket is fixedly connected to the end of the piston rod. The hook is rotatably connected to the flipping bracket, so that the hook can flip and hook the lifting lug.

[0015] Furthermore, the tapered sleeve is arranged vertically, with the larger diameter end of its inner tapered surface facing downwards;

[0016] A guide block is provided on the bottom of the hook away from its hook opening. A guide surface is provided on the bottom of the guide block. The guide surface gradually tilts away from the hook opening from the end near the hook opening to the end away from the hook opening, so that when the lifting lug rises and approaches the hook, it squeezes the guide surface and drives the hook to flip and avoid the lifting lug until the lifting lug enters the hook opening range. Then the hook flips in the opposite direction to hook the lifting lug.

[0017] Furthermore, a limiting block is connected to the hook, and a limiting rod is connected to the flipping bracket. When the hook hooks the lifting lug, the limiting rod abuts against the limiting block.

[0018] Furthermore, the outer cone has a receiving groove at its end inside the cone sleeve, and a first pressure sensor is provided inside the receiving groove. When the insertion head is in contact with the inner cone surface of the cone sleeve, the first pressure sensor contacts the shoulder of the cone sleeve. The first pressure sensor is electrically connected to the drive unit and can send an electrical signal indicating that the insertion head and the cone sleeve have completed their engagement.

[0019] Furthermore, a locking groove is provided on the side wall of the connecting section;

[0020] The locking mechanism includes a locking bracket, a locking block, and a locking drive. The locking bracket is connected to the tapered sleeve. The locking block is adapted to the locking groove and is movably disposed on the locking bracket along the direction of approaching and moving away from the locking groove. The locking drive is disposed on the locking bracket and is used to drive the locking block to move. The locking drive is electrically connected to the first pressure sensor.

[0021] Furthermore, the locking block has a chamfer at one end near the locking groove.

[0022] Furthermore, when the locking block is embedded in the locking groove, at least part of it is located outside the locking groove, and this part is in contact with the conical sleeve.

[0023] Furthermore, a second pressure sensor is embedded at one end of the locking block near the locking groove. When the locking block is inserted into the locking groove, the second pressure sensor contacts the bottom of the locking groove. The second pressure sensor is electrically connected to the locking drive and is used to send an electrical signal to the insertion head to complete the locking.

[0024] Furthermore, at least two sets of the aforementioned quick self-stabilizing disassembly and assembly connection devices are provided between the first module and the second module.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By setting a self-guiding structure between the first module and the second module to cooperate with the outer cone, and combining it with the pulling mechanism to pull the insertion head along the axial direction of the cone sleeve, the outer cone and the inner cone surface are reliably fitted. This application can realize automatic centering and rapid positioning of the module in the confined space of the tunnel, significantly reducing the reliance on manual visual alignment and repeated adjustments. It solves the technical problems of low assembly efficiency, difficulty in hole alignment and high dependence on manual experience in the existing flange + multi-bolt connection, thereby effectively shortening the on-site assembly time and improving the posture accuracy and safety of the steel ring splicing equipment in the reinforcement construction process.

[0027] 2. By setting a lifting lug at the end of the insertion head and adopting a flip-able hook structure in the pulling mechanism, and setting a guide block with an inclined guide surface at the bottom of the hook, when the lifting lug rises and approaches the hook, it automatically squeezes the guide surface to drive the hook to flip and avoid it. After the lifting lug enters the hook opening range, the hook flips in the opposite direction to complete the hooking. This makes the hooking process between the lifting lug and the hook semi-automatic, reducing the operator's repeated actions of aligning the hook in a narrow space, reducing the risk of mis-hooking and detachment, and improving the operational convenience and reliability of the pulling process.

[0028] 3. By setting a receiving groove at the end of the outer cone and embedding a first pressure sensor, setting a locking groove on the side wall of the connecting section and cooperating with a retractable locking block, and setting a chamfer and a second pressure sensor at the end of the locking block, when the outer cone and the inner cone surface are in contact and the locking block is embedded in the locking groove, the pressure sensors output electrical signals indicating that the engagement is in place and the locking is complete, respectively, and are electrically connected to the locking drive and the whole machine control system, thereby realizing real-time monitoring and interlocking control of the connection status. This not only improves the self-stability of the locking mechanism when subjected to shear loads and torsional loads, but also prevents the actuator from malfunctioning when it is not fully engaged or not reliably locked, further improving the intrinsic safety level of equipment operation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram showing the completed splicing of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the splicing process in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 4 This is a front sectional view of an embodiment of this application.

[0034] Figure 5 This is a partial schematic diagram of the hook according to an embodiment of this application.

[0035] Figure 6 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0036] Reference numerals: 1. First module; 2. Second module; 3. Conical sleeve; 311. Through hole; 4. Insertion head; 41. Outer cone; 411. First pressure sensor; 42. Connecting section; 421. Lifting lug; 422. Locking groove; 5. Pulling mechanism; 51. Pulling bracket; 52. Pulling drive; 521. Cylinder; 522. Piston rod; 53. Hook; 531. Guide block; 5311. Guide surface; 532. Limiting block; 54. Flipping bracket; 541. Limiting rod; 6. Locking mechanism; 61. Locking bracket; 62. Locking drive; 63. Locking block; 631. Second pressure sensor. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] This application discloses a rapid, self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment. For example... Figure 1 and Figure 2 As shown, a rapid self-stabilizing disassembly and assembly connection device for lightweight steel ring splicing equipment is integrally installed on a set of lightweight steel ring splicing equipment, used to connect the first module 1 and the second module 2 set on the equipment. The first module 1 can be a working mechanism or auxiliary support frame that contacts the steel ring components, and the second module 2 is a main support frame equipped with a drive mechanism and a control cabinet. The two can achieve rapid disassembly and assembly and reliable docking in the tunnel. Specifically, the first module 1 and the second module 2 are connected by multiple rapid self-stabilizing disassembly and assembly connection devices. In a typical embodiment, at least two sets of the above-mentioned rapid self-stabilizing disassembly and assembly connection devices are set between the first module 1 and the second module 2, so that they can jointly bear the axial load, shear load and torsional load between the two modules in the connected state.

[0039] like Figure 3 and Figure 4 As shown, the quick self-stabilizing disassembly and assembly connection device includes a conical sleeve 3 installed on the first module 1, an insertion head 4 installed on the second module 2, a pulling mechanism 5 for pulling the insertion head 4 along the axial direction of the conical sleeve 3, and a locking mechanism 6 for locking the insertion head 4.

[0040] Specifically, the tapered sleeve 3 is fixed to the connecting plate of the first module 1 by welding, bolting, or integral machining. Preferably, the tapered sleeve 3 is a hollow frustum-shaped sleeve structure with its axis arranged vertically. Its inner wall is machined with an inner tapered surface that gradually expands from top to bottom, so that the large-diameter end of the inner tapered surface faces downward and opens downward. The small-diameter end of the inner tapered surface narrows to form a through hole 311 that communicates with the second module 2, and a shoulder is formed around the bottom of the through hole. With this arrangement, the tapered sleeve 3 can provide a self-guiding and self-aligning mating trajectory for the insertion head 4 during the assembly process, and form a reliable axial limiting surface after the pulling is completed.

[0041] Specifically, the insertion head 4 is fixedly installed on the corresponding connecting plate of the second module 2 for insertion and engagement with the conical sleeve 3. The insertion head 4 includes an integrally machined outer cone 41 and a connecting section 42. The outer contour of the outer cone 41 is a conical or polygonal pyramidal surface that matches the inner cone surface, preferably a cone that gradually expands from top to bottom, so as to insert into the conical sleeve 3 from bottom to top from the large-diameter end of the inner cone surface, achieving a bottom-up guided fit. The connecting section 42 is located at the upper end of the outer cone 41. The cross-section of the connecting section 42 can be a circular or polygonal columnar structure, and the connecting section 42 can extend through the through hole 311 at the small-diameter end of the conical sleeve 3 into the space above the conical sleeve 3. A lifting lug 421 for the pulling mechanism 5 to hook and a locking groove 422 for the locking mechanism 6 to engage are provided on this part.

[0042] Through the cooperation of the cone sleeve 3 and the insertion head 4, automatic guidance and coaxial alignment can be achieved even when there is a certain installation deviation between the relative positions of the first module 1 and the second module 2. Furthermore, a clear axial limiting reference can be formed after the insertion is completed, providing a stable foundation for subsequent pulling and locking, thereby significantly improving the efficiency of rapid docking of the two modules in the confined space of the tunnel.

[0043] Furthermore, such as Figure 4 and Figure 6 As shown, a recessed receiving groove is machined at one end of the outer cone 41 located inside the cone sleeve 3. The receiving groove is preferably located on the top surface of the outer cone 41, and its bottom surface is perpendicular to the axis of the outer cone 41. A first pressure sensor 411 is fixedly installed inside the receiving groove, with its sensing surface facing the inner cone surface. When the outer cone 41 moves upward under the action of the pulling mechanism 5 and completely contacts the inner cone surface, the sensing surface of the first pressure sensor 411 abuts against the shoulder formed by the through hole 311 at the top of the cone sleeve 3, thereby generating a predetermined pressure signal. The first pressure sensor 411 is electrically connected to the drive unit in the pulling drive 52 and the overall control system, so that before the outer cone 41 and the inner cone surface are fully contacted, the pulling action and subsequent locking action can be restricted or interlocked, thus preventing locking or activation of other actuators before the insertion head 4 is fully in the correct position.

[0044] Therefore, through the conical surface fit between the conical sleeve 3 and the outer cone 41, and the first pressure sensor 411 set in the receiving groove, the structure can achieve an organic combination of automatic guidance, automatic limiting and fit detection, fundamentally solving the problem that traditional flange bolt connection requires manual visual alignment and repeated adjustments, and significantly improving the automation and reliability of module docking.

[0045] like Figures 3 to 5 As shown, in order to apply axial preload after the outer cone 41 is inserted into the cone sleeve 3, the traction mechanism 5 includes a traction bracket 51 fixed on the first module 1, a traction drive 52 mounted on the traction bracket 51, and a hook 53 cooperating with the traction drive 52. The traction bracket 51 is preferably a gate-shaped or L-shaped bracket structure welded from multiple plates or profiles, with its lower end connected to the first module 1 by bolts and its upper end mounted above the cone sleeve 3, providing installation space for the traction drive 52.

[0046] Specifically, the traction drive 52 includes a cylinder 521, a piston rod 522 arranged inside the cylinder 521, and a drive unit. The cylinder 521 is fixed to the traction bracket 51 by bolts, and the axis of the cylinder 521 is arranged vertically. The drive unit can be any one or any combination of a hydraulic drive unit, a pneumatic drive unit, or a motor screw drive unit, preferably a hydraulic drive unit. Pressurized oil is supplied to the cylinder 521 through an external hydraulic station to drive the piston rod 522 to reciprocate linearly in the vertical direction. The lower end of the piston rod 522 extends out of the cylinder 521 and is fixedly connected to a tilting bracket 54. The tilting bracket 54 is preferably a U-shaped plate structure, and its middle part is rotatably connected to the hook 53 through a pin or a rotating shaft, so that the hook 53 can swing around the connecting axis at the lower end of the tilting bracket 54.

[0047] Specifically, such as Figure 4 and Figure 5As shown, the hook 53 is a longitudinally curved strip with a forward-opening hook opening at its lower part for hooking the lifting lug 421 set on the connecting section 42. To reduce the difficulty of aligning the lifting lug 421 with the hook 53, a guide block 531 is integrally formed or welded to the bottom of the hook 53 on the side away from the hook opening. The bottom surface of the guide block 531 is machined into a guide surface 5311 that gradually slopes away from the hook opening from the end near the hook opening to the end away from the hook opening. With this setup, during the relative ascent of the second module 2, when the lower end of the lifting lug 421 first contacts the guide surface 5311, it will compress the guide surface 5311 and apply a pushing force to the hook 53, thereby driving the hook 53 to rotate away from the lifting lug 421 around the connecting axis of the flipping bracket 54, thus achieving automatic avoidance of the lifting lug 421; as the second module 2 continues to rise, the lifting lug 421 gradually enters the vertical range of the hook opening, and due to the effect of gravity, the hook 53 rotates in the opposite direction, so that the hook opening automatically hooks the lifting lug 421, thus achieving reliable hooking between the hook 53 and the lifting lug 421.

[0048] To prevent the lifting lug 421 from being outside the guide surface 5311 before the hook 53 contacts it, in this embodiment, a limiting block 532 is provided on the hook 53, and a corresponding limiting rod 541 is provided on the flipping bracket 54. When the hook 53 rotates around the flipping bracket 54 to the predetermined position for hooking the lifting lug 421, the limiting rod 541 and the limiting block 532 abut against each other, thereby limiting the flipping angle of the hook 53. This prevents the hook 53 from shifting its center of gravity due to the addition of the guide block 531 during the hooking process, thus avoiding the situation where the lifting lug 421 is outside the guide surface 5311 (e.g., ...). Figure 4 In the center direction, if the hook 53 is biased to the left of the lug 421, the hook 53 will not be able to hook the lug 421.

[0049] With the aforementioned guide block 531 and guide surface 5311, a certain lateral deviation is allowed between the relative positions of the lifting lug 421 and the hook 53. The operator only needs to roughly raise the second module 2 to the predetermined height, and the hooking process can be automatically completed under the guidance, reducing the tedious operation of repeatedly adjusting the position of the hook 53 in the narrow space of the tunnel. Thus, while applying axial preload, the traction mechanism 5 realizes semi-automatic guidance in the hooking process, greatly improving the operational convenience and work efficiency of the connection device.

[0050] like Figure 3 and Figure 6As shown, in order to radially lock and self-stabilize the insertion head 4 after the outer cone 41 and inner cone surface are attached and pulled together, the locking mechanism 6 includes a locking bracket 61 fixed on the outer peripheral sidewall of the cone sleeve 3, a locking drive 62 arranged on the locking bracket 61, and a locking block 63 that reciprocates radially under the drive of the locking drive 62. The locking bracket 61 can be a plate-shaped or box-shaped structure, one end of which is fixedly connected to the top surface of the cone sleeve 3 by welding or bolts, and the other end is a mounting seat for accommodating the locking drive 62 and the guide locking block 63. The locking drive 62 can be any one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, or a motor screw mechanism, preferably a hydraulic cylinder structure, with its movable end arranged radially toward the connecting section 42, used to drive the locking block 63 to move linearly in the direction of approaching and moving away from the connecting section 42.

[0051] Specifically, a locking groove 422 is machined radially inward on the side wall of the connecting section 42. The opening of the locking groove 422 faces the side where the locking block 63 is located, and the bottom of the groove is basically parallel to the axis of the connecting section 42. The front end of the locking block 63 is formed into a protrusion structure that matches the shape of the locking groove 422. Under the push of the locking drive 62, the locking block 63 can move radially inward from the unlocked position and embed itself into the locking groove 422 to achieve the cooperation between the two. In order to facilitate the smooth entry of the locking block 63 into the locking groove 422, a chamfer is provided at the end of the locking block 63 near the locking groove 422 in this embodiment. The chamfer forms a slope that gradually tapers from the outside to the inside, so that even if there is a slight positional deviation between the connecting section 42 and the locking block 63 during the movement of the locking block 63, the position can be automatically corrected under the guiding action of the chamfer and the locking block 63 can be guided to insert into the locking groove 422.

[0052] Furthermore, such as Figure 6 As shown, in order to monitor the locking status and form a safety interlock with the overall control system, a second pressure sensor 631 is embedded inside the locking block 63 in this embodiment. The sensing surface of the second pressure sensor 631 faces the bottom of the locking groove 422. When the locking drive 62 pushes the locking block 63 to complete the locking action, the front end of the locking block 63 enters the locking groove 422 and abuts against the bottom of the groove, thereby causing the second pressure sensor 631 to contact the bottom of the groove and generate a predetermined pressure signal. The second pressure sensor 631 is electrically connected to the locking drive 62 and the overall control system, and is used to provide an unlocked status prompt or prohibit other actuators from operating when the locking block 63 is not fully embedded in the locking groove 422. Only when the locking block 63 is detected to be fully in place is the next step of the operation process allowed.

[0053] Preferably, when the locking block 63 is fully embedded in the locking groove 422, a portion of the locking block 63 remains outside the locking groove 422 and fits against the outer surface of the cone sleeve 3. This portion forms an additional support surface, which can transfer part of the load to the cone sleeve 3 when subjected to shear and torsional loads, thereby improving the rigidity and self-stability of the entire connection device in the working state. Through the coordinated operation of the locking block 63, the locking groove 422, and the second pressure sensor 631, not only is reliable locking of the insertion head 4 achieved, but also real-time detection and safety interlocking of the locking status are provided, effectively avoiding safety accidents caused by accidental activation of large actuators when the locking is incomplete.

[0054] In a typical operating condition, the second module 2 of the lightweight steel ring splicing equipment is first positioned at the target location via a track-walking mechanism or a support leg mechanism. Then, the first module 1 is transported to its vicinity, so that the insertion head 4 on the second module 2 is approximately below the conical sleeve 3 on the first module 1. Specifically, under the action of gravity or driven by an auxiliary lifting device, the second module 2 is slowly raised, allowing the outer cone 41 to enter the large-diameter end opening of the conical sleeve 3 from top to bottom, and gradually achieving radial alignment and axial convergence under the guidance of the inner conical surface.

[0055] As the second module 2 continues to rise, the lifting lug 421, located at the top of the connecting section 42, gradually approaches the traction mechanism 5 above the first module 1. Under the action of the guide block 531 and the guide surface 5311, the lifting lug 421 first squeezes the guide surface 5311, causing the hook 53 to flip and avoid it. Then, at a predetermined height, it enters the hook opening range of the hook 53. Under the action of gravity, the hook 53 flips in the opposite direction, allowing the lifting lug 421 to enter the interior of the hook 53. Under the traction of the traction mechanism, the hook 53 reliably hooks the lifting lug 421. At this time, pressure is supplied to the cylinder 521 through the drive unit, causing the piston rod 522 to move upward under the action of hydraulic thrust, driving the flipping bracket 54 and the hook 53 to move upward as a whole, pulling the lifting lug 421 and the connecting section 42 upward, thereby making the outer cone 41 and the inner cone surface fit tightly together. When the outer cone 41 and the inner cone surface are in contact and reach the predetermined pressure, the first pressure sensor 411 abuts against the inner cone surface and outputs a signal indicating that the engagement is complete. The drive unit can stop the pulling action or enter the pressure holding stage according to the signal.

[0056] After the outer cone 41 and the inner cone surface come into contact and form an axial preload, the control system drives the locking drive 62 to operate, pushing the locking block 63 to move radially towards the connecting section 42. Under the guidance of the chamfer, the locking block 63 smoothly enters the locking groove 422 and presses against the bottom of the groove. The second pressure sensor 631 contacts the bottom of the groove and outputs a locking completion signal. Only when both the first pressure sensor 411 and the second pressure sensor 631 output a positioning signal can the whole machine control system allow other actuators of the steel ring splicing equipment (such as lifting mechanisms, rotating mechanisms, etc.) to be energized or hydraulically powered to achieve safety interlocking.

[0057] When disassembly is required, the locking drive 62 is first reversed, causing the locking block 63 to exit the locking groove 422 and return to the unlocked position. After the second pressure sensor 631 detects the unlocked state, the control system cuts off or restricts the movement of other actuators. Subsequently, the pressure inside the cylinder 521 is released by the drive unit, causing the piston rod 522 to slowly descend. The hook 53 drives the lifting lug 421 to move down, and the outer cone 41 gradually separates from the inner cone surface. At this time, the pressure signal of the first pressure sensor 411 gradually decreases until it loses contact, and the control system can provide a disassembly / reassembly status prompt. Finally, the first module 1 is lowered to a safe position by the auxiliary support device, completing the separation of the two modules.

[0058] In summary, this embodiment, by setting a self-guiding structure in which the conical sleeve 3 and the outer cone 41 cooperate, and combining the axial preload applied by the traction mechanism 5 and the radial locking and status detection provided by the locking mechanism 6, enables the lightweight steel ring splicing equipment to achieve rapid module docking, self-stabilizing connection, and safe interlocking in confined spaces such as subway tunnels. On the one hand, it effectively solves the problems of low assembly efficiency and difficulty in hole alignment in traditional flange + multi-bolt connections, significantly shortening the on-site assembly time; on the other hand, the cooperation of the guide block 531, guide surface 5311, limit block 532, and limit rod 541 improves the convenience and reliability of the traction and connection operation; at the same time, the first pressure sensor 411 and the second pressure sensor 631 monitor the cooperation and locking status and interlock with the whole machine control system, effectively preventing the actuator from malfunctioning when the connection is not completely reliable, thereby significantly improving the working safety and overall stability of the steel ring splicing equipment in actual construction.

[0059] It should be noted that the first module 1 and the second module 2 in this application are not limited to... Figure 2 The division shown can be flexibly split according to actual construction needs to facilitate transportation and on-site installation, and the first module 1 and the second module 2 can also be divided into multiple sub-modules. Specifically, in this embodiment, Figure 2 The first module 1 shown can be further subdivided into three sub-modules: an upper left support, an upper right support, and a telescopic mechanism located between them. These sub-modules are connected by bolts to form a whole. Similarly, the second module 2 can be subdivided into three sub-modules: a lower left support, a lower right support, and a base. These are also assembled together by bolts. Each sub-module can be transported manually or using small handling equipment to confined spaces such as subway tunnels. The sub-modules are then assembled sequentially within the tunnel. Finally, the first module 1 and the second module 2 are reliably connected using the rapid self-stabilizing disassembly and assembly connection device of this application. This approach balances the overall rigidity and operational performance of the equipment while significantly improving the flexibility and adaptability of modular handling and on-site assembly.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid, self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment, used to connect a first module and a second module, characterized in that, include: A tapered sleeve is connected to the first module. Its inner wall forms an inner tapered surface that gradually expands toward the second module. The large-diameter end of the inner tapered surface is open, and the small-diameter end is narrowed to form a through hole. A shoulder is formed around the bottom of the through hole. An insert head, connected to the second module, includes an outer cone adapted to the inner conical surface and a connecting section connected to the outer cone. The outer cone is inserted into the conical sleeve from the large-diameter end of the inner conical surface, and the connecting section protrudes from the conical sleeve through the through hole. A pulling mechanism, mounted on the first module, is used to pull the insertion head along the axial direction of the cone sleeve, so that the outer cone body fits against the inner cone surface. A locking mechanism, disposed on the first module, is used to lock the insertion head; The end of the connecting section is provided with a lifting lug; The pulling mechanism includes a pulling bracket, a pulling drive, and a hook. The pulling bracket is connected to the first module. The pulling drive includes a cylinder, a piston rod, and a driving unit. The cylinder is connected to the pulling bracket. The piston rod slides along the cylinder under the drive unit. A flipping bracket is fixedly connected to the end of the piston rod. The hook is rotatably connected to the flipping bracket, so that the hook can flip and hook the lifting lug.

2. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The cone sleeve is arranged vertically, with the larger diameter end of its inner cone surface facing downwards; A guide block is provided on the bottom of the hook away from its hook opening. A guide surface is provided on the bottom of the guide block. The guide surface gradually tilts away from the hook opening from the end near the hook opening to the end away from the hook opening, so that when the lifting lug rises and approaches the hook, it squeezes the guide surface and drives the hook to flip and avoid the lifting lug until the lifting lug enters the hook opening range. Then the hook flips in the opposite direction to hook the lifting lug.

3. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 2, characterized in that, A limit block is connected to the hook, and a limit rod is connected to the flipping bracket. When the hook hooks the lifting lug, the limit rod abuts against the limit block.

4. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The outer cone has a receiving groove at its end inside the cone sleeve. A first pressure sensor is installed inside the receiving groove. When the outer cone is in contact with the inner cone surface of the cone sleeve, the first pressure sensor contacts the shoulder of the cone sleeve. The first pressure sensor is electrically connected to the drive unit and can send an electrical signal indicating that the insertion head and the cone sleeve have completed their engagement.

5. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 4, characterized in that, A locking groove is provided on the side wall of the connecting section; The locking mechanism includes a locking bracket, a locking block, and a locking drive. The locking bracket is connected to the tapered sleeve. The locking block is adapted to the locking groove and is movably disposed on the locking bracket along the direction of approaching and moving away from the locking groove. The locking drive is disposed on the locking bracket and is used to drive the locking block to move. The locking drive is electrically connected to the first pressure sensor.

6. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 5, characterized in that, The locking block has a chamfer at one end near the locking groove.

7. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to claim 6, characterized in that, When the locking block is embedded in the locking groove, at least part of it is located outside the locking groove, and this part is in contact with the conical sleeve.

8. The rapid self-stabilizing disassembly and assembly connection device for lightweight steel ring splicing equipment according to claim 5, characterized in that, A second pressure sensor is embedded at one end of the locking block near the locking groove. When the locking block is inserted into the locking groove, the second pressure sensor contacts the bottom of the locking groove. The second pressure sensor is electrically connected to the locking drive and is used to send an electrical signal to the insertion head to complete the locking.

9. The rapid self-stabilizing assembly and disassembly connection device for lightweight steel ring splicing equipment according to any one of claims 1-8, characterized in that, At least two sets of the rapid self-stabilizing disassembly and assembly connection devices are provided between the first module and the second module.

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