Top lock / pull-out type coupling device and immersed cage construction vessel

Abstract

The present application provides a top lock-pull-out type coupling device and an immersed pipe construction vessel, the coupling device comprising: a support member fixedly coupled to the load-bearing element and installed on a first side of the load-bearing element facing the supported element; a sliding member slidable relative to the load-bearing element in a coupling direction of the load-bearing element and the supported element; an ejector rod used for pushing the sliding member and fixedly coupled to the supported element; a first locking member used for locking the ejector rod and movably coupled between a first end of the sliding member close to the supported element and the support member, and operable by the sliding member to move toward or away from the ejector rod; and a second locking member used for locking the sliding member and coupled between a second end of the sliding member remote from the supported element and the load-bearing element.

Description

[Technical field]

[0001] This application claims the benefit of priority to China Application No. 202211106676.X, entitled "top-lock pull-out type connecting device and an immersed tube construction ship containing the same," filed on September 13, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of construction equipment in architectural engineering, in particular to an upper lock-pull-out type coupling device and an immersed caisson construction ship. [Background technology]

[0003] In the field of construction engineering, in order to ensure construction safety, improve construction efficiency and reduce labor, the reliable connection and easy disconnection functions between construction equipment or between construction equipment and building components are required functions in many construction equipment. Under certain operating conditions, it is also necessary to establish a connection form between load-bearing elements and supported elements that has both pushing and pulling functions to achieve the so-called "jacked and tensioned rigid connection".

[0004] The connection between the immersed tube and the transport ship during the floating transportation of the prefabricated immersed tube section of the immersed tube tunnel is an example of a "jacked and tensioned" firm connection. At present, the conventional ship-cage connection structure usually adopts a support pier and cables to realize the "jacked and tensioned" connection between the immersed tube and the transport ship. However, it is necessary to manually assemble and disassemble a large number of cables, and the existing conventional ship-cage connection structure does not have a simple unlocking function, which results in a large amount of labor during construction and does not realize the risk avoidance by rapid disconnection in emergency situations. Summary of the Invention [Means for solving the problem]

[0005] In order to solve some problems in the prior art, the present application provides a top lock-pull-out type coupling device and an immersed caisson construction ship including the same, which can fully realize the ship-caisson coupling.

[0006] A first aspect of the present application provides a top lock-pull-out connection device for connection between a load-bearing element and a borne element, the top lock-pull-out connection device comprising: a support member fixedly connected to the load-bearing element and located on a first side of the load-bearing element facing the borne element; a sliding member slidable relative to the load-bearing element in a connection direction of the load-bearing element and the borne element; and an ejector rod used for pushing the sliding member, the support member fixedly connected to the borne element and located on the first side of the borne element facing the load-bearing element and located on the opposite side of the sliding member. a first locking member used for locking the sliding member, movably connected between a first end of the sliding member close to the supported element and the support member, and operable by the sliding member to move toward or away from the ejector rod; and a second locking member used for locking the sliding member, connected between a second end of the sliding member remote from the supported element and the load-bearing element, wherein the top lock-pull-out coupling device is configured such that, when the supported element and the load-bearing element move toward each other in the coupling direction, the ejector rod pushes the sliding member to slide in a direction away from the supported element, and the sliding member operates the first locking member to move toward the ejector rod. The top lock-pull-out coupling device is configured such that after the supported element moves to apply resistance to the support member while in contact with the support member, the sliding member is locked and coupled to the load-bearing element via the second locking member, and at this time, the first locking member fits with the ejector rod to lock the ejector rod, and the top lock-pull-out coupling device is configured such that after the lock of the second locking member on the sliding member is released, as the supported element and the load-bearing element move away from each other in the coupling direction, the sliding member slides in a direction approaching the supported element due to the tensile force of the first locking member and the ejector rod, and the first locking member moves away from the ejector rod to release the ejector rod.

[0007] In some examples, there are a plurality (two or more) of support members, the plurality of support members being evenly distributed around the sliding member, and there are a plurality of first locking members, the plurality of first locking members being arranged in one-to-one correspondence with the support members, and while locking the ejector rod, the plurality of first locking members jointly clamp the ejector rod to lock the ejector rod.

[0008] In some examples, the ejector rod is provided with a flange at a first end away from the supported element, each of the first locking members is a locking arm, the first end of the locking arm is hinged to the sliding member, and the second end of the locking arm is slidably connected to the support member, the side of the locking arm adjacent the ejector rod is provided with a convex edge for clamping the flange, and the top lock-pull-out coupling is configured to pull the coupling end of the support member and the locking arm (all of the coupling ends) together when the sliding member slides away from the supported element. The upper lock-pull-out coupling device is configured such that, when the sliding member slides toward the supported element, the connecting end of the support member and the lock arm (i.e., the second end of the lock arm) slides toward the ejector rod to actuate the convex edge, moving it toward the ejector rod and clamping the flange, and the upper lock-pull-out coupling device is configured such that, when the sliding member slides toward the supported element, the connecting end of the support member and the lock arm (i.e., the second end of the lock arm) slides away from the ejector rod to actuate the convex edge, moving it away from the ejector rod and releasing the ejector rod.

[0009] In some examples, each of the support members is provided with a sliding groove, the sliding groove including a straight portion and a continuously connected arc portion, the straight portion being arranged in a sliding direction of the sliding member and extending from a first end of the straight portion close to the load-bearing element to a second end of the straight portion close to the supported element, the first end of the arc portion being connected to the second end of the straight portion, the arc portion being curved directly toward the supported element and away from the ejector rod, and each of the locking arms is connected to a convex edge and perpendicular to each other. The ejector rod includes a first connecting arm and a second connecting arm connected to the first connecting arm, a first end of the first connecting arm being hinged to the sliding member, the convex edge being connected to a side of the second end of the first connecting arm adjacent to the ejector rod, the first end of the second connecting arm being slidably connected to the sliding groove by a slider, and the second end of the second connecting arm being perpendicularly connected to an end of the first connecting arm away from the sliding member (i.e., the second end of the first connecting arm) and located on a side away from the convex edge.

[0010] In some examples, the ejector rod is cylindrical and configured to contact the sliding member so as to be able to push the sliding member, and there are at least three support members.

[0011] In some examples, the top lock-pull-out coupling further comprises a guide tube fixedly attached to the load bearing element, the guide tube being disposed in the sliding direction of the sliding member and extending through the load bearing element, the sliding member being slidably fitted within the guide tube, and when the second locking member locks the sliding member, the second locking member is coupled to a second end of the sliding member and clamped at the through port of the guide tube on a second side of the load bearing element away from the supported element.

[0012] In some examples, the second end of the sliding member is a handle portion having a through groove for inserting the second locking member therethrough, the extension direction of the through groove is perpendicular to the sliding direction of the sliding member, and the size of the second locking member is larger than the size of the through port, and when the second locking member locks the sliding member, the handle portion extends through the through port and the second locking member is inserted into the through groove and clamped at the through port.

[0013] In some examples, the second locking member is two wedge-shaped blocks, the inclined surfaces of the two wedge-shaped blocks are arranged opposite each other and are slidable relative to each other, and the size of at least one of the wedge-shaped blocks is larger than the size of the through port.

[0014] In some examples, the second locking member is a nut, the axial direction of the nut coincides with the sliding direction of the sliding member, the size of the nut is larger than the size of the through port, and the second end of the sliding member is a handle portion provided with an external thread to mate with the nut.

[0015] In some examples, two opposing sides of the inner circumference of the nut are respectively formed with slideways extending through the nut in the sliding direction of the sliding member, the width of the handle portion is smaller than the width of the two slideways, and the male threads are disposed on outer walls of the two longitudinal ends of the handle portion, and when the nut is rotated until the two slideways are aligned with the two longitudinal ends of the handle portion, the handle portion slidably fits between the two slideways.

[0016] A second aspect of the present application provides an immersed caisson construction vessel for use in transporting or immersing an immersed caisson, the immersed caisson construction vessel comprising a first floating body and a second floating body arranged substantially in parallel, and a deck bridge connected between the first floating body and the second floating body, and comprising any one of the above examples. Top lock / pull-out coupling are distributed on the deck bridge to connect various parts of the immersed canal, with the deck bridge acting as the load-bearing element and the immersed canal acting as the supported element.

[0017] Compared with the prior art, the present application has the following advantages and positive effects:

[0018] 1. Provided in at least one embodiment of the present application Top lock / pull-out coupling In the present invention, the ejector rod arranged on the load bearing element is allowed to push the sliding member by a pushing action when the load bearing element and the supported element move towards each other, and the first locking member is actuated to lock the ejector rod by the sliding of the sliding member against the load bearing element, whereby a "tensioning" between the load bearing element and the supported element is realized in combination with the locking of the second locking member against the sliding member. Meanwhile, the movement of the load bearing element and the supported element towards each other is limited by a support member fixed to the load bearing element to prevent the load bearing element from colliding with the supported element, so as to realize a "jacking" between them. When it is necessary to release the supported element, a pulling action is applied when the load bearing element and the supported element move away from each other by releasing the lock of the second locking member to the sliding member, so that the sliding member slides against the load bearing element, and as a result the first locking member moves away from the ejector rod, releasing the supported element.

[0019] 2. Provided in at least one embodiment of the present application Top lock / pull-out coupling It also has the firm connection function of "jacking and tensioning" and the easy unlocking function, which can meet the construction requirements for ship-cabin connection in the immersed caisson tunnel construction process, or the easy unlocking requirements of the firm connection structure of "jacking and tensioning" under other operating conditions.

[0020] 3. Provided in at least one embodiment of the present application Top lock / pull-out couplingIn this embodiment, locking and unlocking are completely controlled by the second locking member without the need for an additional lock / unlock control mechanism, which greatly simplifies the operating mechanism of the coupling device, fundamentally avoids the possibility of accidental disconnection caused by a failure in the lock / unlock control mechanism, and completely avoids hidden dangers, thereby essentially realizing safety. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 illustrates a perspective view of a top lock-pull out coupling according to one embodiment. [Diagram 2] Front view of the top lock-pull-out coupling. [Diagram 3] Top view of the top lock-pull-out coupling. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] FIG. 2 is a schematic structural diagram of a lock arm of a top lock-pull-out type coupling device in one embodiment. [Figure 6(a)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(b)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(c)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(d)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(e)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(f)] 1 is a schematic diagram of the connection and release process between a load-bearing element and a supported element of the top lock-pull-out connection device of the present application. FIG. [Figure 6(g)] 6(a)-6(e) are schematic diagrams showing the connection and release process between a load-bearing element and a supported element of the top lock-pull-out type connection device of the present application, in which Fig. 6(a)-Fig. 6(e) are the connection process, and Fig. 6(e)-Fig. 6(g) are the release process. [Figure 7] FIG. 2 is a schematic structural diagram of a top lock-pull-out type coupling device in one embodiment. [Figure 8] 4 is a schematic assembly diagram of a support member, a sliding member, a first locking member, and an ejector rod. FIG. [Figure 9] FIG. 13 is an assembled perspective view of a load bearing element, a second locking member, and a slide member of a top lock-pull out coupling in accordance with one embodiment, with the slide member in a locked state. [Figure 10] FIG. 10 is a top view of FIG. [Figure 11] FIG. 11 is a cross-sectional view taken along line BB in FIG. [Figure 12] FIG. 2 is an assembled perspective view of the load bearing element, the second locking member and the slide member of the top lock-pull out coupling of the present application when the slide member is in an unlocked state. [Figure 13] FIG. 13 is a top view of FIG. [Figure 14] FIG. 14 is a cross-sectional view taken along line CC in FIG. [Figure 15] FIG. 2 is a schematic structural diagram of a second locking member of the top lock-pull-out type coupling device of the present application. [Figure 16] FIG. 2 is a schematic structural diagram of a sliding member of the top lock-pull-out type coupling device of the present application. [Figure 17] FIG. 2 is a schematic structural diagram of an immersed caisson construction ship in one embodiment. [Figure 18] This is a schematic assembly diagram of the deck bridge, upper lock-pull-out type coupling device, and immersed tunnel of the immersed tunnel construction ship of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Here, 1 load-bearing element, 2 supported element, 3 upper lock-pull-out type coupling device, 4 first floating body, 5 second floating body, 6 deck bridge, 7 immersed cage, 31 support member, 311 sliding groove, 3111 straight section, 3112 arc section, 32 sliding member, 321 handle section, 3211 through groove, 33 lock arm, 331 first connecting arm, 332 convex edge, 333 slider, 334 second connecting arm, 34 ejector rod, 341 flange, 35 guide tube, 351 through port, 36 wedge block, 37 nut, 371 sliding path. It is.

[0023] Next, the technical solutions of the present application will be described in detail in combination with specific embodiments. However, it should be understood that the elements, components, structures and features in one embodiment can also be advantageously incorporated in other embodiments without further description.

[0024] It should be noted that in the description of this application, terms such as "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply a relative importance or to imply a number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. It should be noted that in the description of this application, terms such as "top," "bottom," "inner," and the like are merely for convenience of explanation and simplified description of this application and indicate an orientation or positional relationship based on the orientation or positional relationship shown in FIG. 1, but do not indicate or imply that the device or element referred to must be in a particular orientation or configured and operated in a particular orientation, and therefore should not be construed as limiting this application.

[0025] It should be noted that in the description of this application, the terms "connect", "connected" and "connected" should be understood in a broad sense unless otherwise clearly defined and limited. For example, they may be fixed connections, detachable connections, or integral connections. They may be direct connections, indirect connections via intermediate media, or internal connections between two elements. For those skilled in the art, the clear meanings of the above terms in this application can be understood under clear circumstances.

[0026] As shown in Figs. 1 to 6, the first embodiment of the present application provides a top lock-pull-out type coupling device 3 (hereinafter, referred to as "coupling device" for short), which is coupled between a load-bearing element 1 and a supported element 3, and includes a support member 31, a sliding member 32, an ejector rod 34, a first locking member, and a second locking member. The support member 31 is fixedly coupled to the load-bearing element 1 and is installed on a first side of the load-bearing element 1 facing the supported element 2. For example, the support member 31 may be directly cast on the load-bearing element 1, or may be fixedly coupled to the load-bearing element 1 via a coupling member such as a bolt. The sliding member 32 is slidable relative to the load-bearing element 1 along the coupling direction of the load-bearing element 1 and the supported element 2. The ejector rod 34 is used to push the sliding member 32, is fixedly connected to the supported element 2, and is installed on a first side of the supported element 2 facing the load-bearing element 1, and is arranged on the opposite side to the sliding member 32. Specifically, the ejector rod 34 is configured to be in contact with the sliding member 32 and to be able to push the sliding member 32. For example, the ejector rod 34 may be cast directly on the supported element 2, or may be fixedly connected to the supported element 2 via a connecting member such as a bolt. The first locking member is used to lock the ejector rod 34, and is movably connected between a first end of the sliding member 32 adjacent to the supported element 2 and the support member 3, and can be operated by the sliding member 32 to move toward or away from the ejector rod 34. The second locking member is used to lock the sliding member 32, and is connected between a second end of the sliding member 32 remote from the supported element 2 and the load-bearing element 1. When the supported element 2 and the load-bearing element 1 move toward each other in their connection direction, the ejector rod 34 pushes the sliding member 32 to slide away from the supported element 2, and the sliding member 32 activates the first locking member to approach the ejector rod 34, and after the supported element 2 moves to apply resistance to the support member 31 while in contact with the support member 31, the sliding member 32 is locked and connected to the load-bearing element 1 by the second locking member, and at this time, the first locking member cooperates with the ejector rod 34 to lock the ejector rod 34.Then, after the second locking member 32 is released from the lock on the sliding member, as the supported element 2 and the load-bearing element 1 move away from each other in their connection direction, the sliding member 32 slides in a direction approaching the supported element 2 due to the tensile force between the first locking member and the ejector rod 34, and the first locking member moves away from the ejector rod 34, releasing the ejector rod 34.

[0027] In the coupling device 3, the pushing action when the load bearing element 1 and the supported element 2 move towards each other allows the ejector rod 34 arranged on the supported element 2 to push the sliding member 32, and the first locking member is actuated to lock the ejector rod 34 by the sliding of the sliding member 32 against the load bearing element 1, thus realizing "tensioning" between the load bearing element 1 and the supported element 2 in combination with the locking of the second locking member to the sliding member 32. Meanwhile, the movement of the load bearing element 1 and the supported element 2 towards each other is limited by the support member 31 fixed on the load bearing element 1 to realize "jacking" between the load bearing element 1 and the supported element 2, preventing the load bearing element 1 from colliding with the supported element 2. When the supported element 2 needs to be released, the sliding member 32 is unlocked from the second locking member, and the sliding member 32 slides against the load-bearing element 1 due to the pulling action when the load-bearing element 1 and the supported element 2 move away from each other, so that the first locking member moves away from the ejector rod 34 to release the supported element 2. The coupling device 3 simultaneously has a "jacking and tensioning" rigid coupling function and a simple unlocking function, which can meet the construction requirements of ship-cage coupling in the immersed caisson tunnel construction process, or can meet the simple unlocking requirements of the "jacking and tensioning" rigid coupling structure under other operating conditions. In addition, in the connecting device 3, locking and unlocking are completely controlled by the second locking member without a separate unlocking control mechanism, thus greatly simplifying the operating mechanism of the connecting device, fundamentally avoiding the possibility of accidental disconnection caused by failure of the unlocking control mechanism, completely avoiding hidden dangers, and essentially achieving safety.

[0028] As shown in Fig. 2, in some embodiments, two support members 31 are provided, which are symmetrically distributed with respect to the sliding member 32. There are also two first locking members, which are arranged in one-to-one correspondence with the support members 31. While the ejector rod 34 is locked, the two first locking members clamp the ejector rod 34 together to lock the ejector rod 34. Such a configuration has good structural stability and is effective in improving the bearing capacity of the connecting device.

[0029] 4-6, in one embodiment, a flange 341 is provided on a first end of the ejector rod 34 remote from the supported element 2. Each of the first locking members is a locking arm 33, the first end of which is hinged to the sliding member 32 and the second end of which is slidably connected to the support member 31, so that the first locking member is movably connected between the first end of the sliding member 32 and the support member 31. A convex edge 332 used for clamping the flange 341 of the ejector rod is provided on the side of the locking arm 33 adjacent to the ejector rod 34. When the sliding member 32 slides in a direction away from the supported element 2, the support member 31 and the connecting end of the lock arm 33 (i.e., the second end of the lock arm) slide in a direction approaching the ejector rod 34, actuating the convex edge 332 to move it closer to the ejector rod 34 and clamp the flange 341, and when the sliding member 32 slides in a direction approaching the supported element 2, the support member 31 and the connecting end of the lock arm 33 (i.e., the second end of the lock arm) slide in a direction away from the ejector rod 34, actuating the convex edge 332 to move it away from the ejector rod 34 and release the ejector rod 34. In this embodiment, the ejector rod 34 is locked by using the lock arm 33 as a first lock member and cooperating the convex edge 332 arranged on each lock arm 33 with the flange 341 provided on the ejector rod 34. Meanwhile, a first end of the lock arm 33 is hinged to the sliding member 32 and a second end thereof is slidably connected to the support member 31, whereby the lock arm 33 can be opened and closed during sliding of the sliding member 32 to allow the convex edge 332 to move closer to or away from the ejector rod 34.

[0030] To operate the convex edge 332 of each lock arm 33 by the sliding of the sliding member 32 to move it closer to or away from the ejector rod 34, more specifically, as shown in Figs. 4 to 8, each support member 31 is provided with a sliding groove 311, and the sliding groove 332 includes a straight portion 3111 and an arc portion 3112 that are continuously connected. The straight portion 3111 is arranged along the sliding direction of the sliding member 32 and extends from a first end of the straight portion close to the load bearing element 1 to a second end of the straight portion close to the supported element 2, and the first end of the arc portion 3112 is connected to the second end of the straight portion 3111, and the arc portion 3112 is curved so as to move directly toward the supported element 2 and away from the ejector rod 34. 5, each lock arm 33 has a convex edge 332 as a first lock member, and a first connecting arm 331 and a second connecting arm 334 perpendicularly connected to each other. A first end of the first connecting arm 331 is hinged to the sliding member 32, the convex edge 332 is connected to the second end of the first connecting arm 331 on the side adjacent to the ejector rod 34, the first end of the second connecting arm 334 is slidably connected to the sliding groove 311 via the slider 333, and the second end of the second connecting arm 334 is perpendicularly connected to the end of the first connecting arm 331 away from the sliding member 32 (i.e., the second end of the first connecting arm 331) and is installed on the side away from the convex edge 332.In this configuration, as shown in Figs. 6(a) to 6(g), when the sliding member 32 is not locked, the slider 333 of the lock arm 33 is disposed at the rear end of the arc portion 3112 of the sliding groove 311, and when the sliding member 32 is pushed by the ejector rod 34 and slides in a direction away from the supported element 2, the slider 333 moves laterally along the arc portion 3112 and moves in a direction approaching the load-bearing element 1 and the ejector rod 34. Furthermore, the slider 333 operates the first connecting arm 331 to swing in a direction approaching the ejector rod 34 via the second connecting arm 3334, and as a result, the convex edge portion 332 moves in the direction of the ejector rod 34. When the slider 333 moves toward the ejector rod 34 and is clamped to the flange 341 of the ejector rod 34, the convex edge 332 is approximately attached to the ejector rod 34 when the slider 333 slides to the junction of the arc portion 3112 and the straight portion 3111, and when the sliding member 32 continues to slide in a direction away from the supported element 2, the slider 333 slides along the straight portion 3111, actuating the first connecting arm 331 to slide along the straight portion in a direction away from the supported element 2, and the convex edge 332 is clamped to the flange 341 at the end of the ejector rod 34, thereby locking the ejector rod 34. When the supported element 2 is to be released, the sliding member 32 slides in a direction approaching the supported element 2, thereby actuating the slider 333 to slide in a direction approaching the supported element 2 via the first connecting arm 331 and the second connecting arm 334 along the straight portion 3111 of the sliding groove 311, and when the slider 333 slides to the arc portion 3112, the slider 33 actuates the first connecting arm 331 to swing in a direction away from the ejector rod 34 via the second connecting arm 334, and the convex edge portion 332 moves away from the ejector rod 34 to release the ejector rod 34. Note that in this embodiment, the convex edge portion 332, the first connecting arm 331, the second connecting arm 334 and the slider 333 may be formed integrally.

[0031] 1 to 3 , the connecting device 3 may further include a guide tube 35 fixedly attached to the load-bearing element 1. The guide tube 35 is arranged in the sliding direction of the sliding member 32 and extends through the load-bearing element 1, and the sliding member 32 is slidably fitted into the guide tube 35. When the second locking member locks the sliding member 32, the second locking member is coupled to a second end of the sliding member 32 and clamped at a through port 351 of the guide tube 35 on a second side of the load-bearing element 1 remote from the supported element 2. The sliding direction of the sliding member 32 is guided by the provided guide tube 35, which penetrates to the second side of the load-bearing element 1, so that the second locking member can be operated on the second side of the load-bearing element 1 to lock the sliding member 32, and when locking the sliding member 32, the second locking member is clamped at the through port 351 of the guide tube 35 on the second side of the load-bearing element 1, so that the firmness of the lock is ensured and there is no risk of accidental disconnection.

[0032] As shown in FIG. 3 and FIG. 4, in one embodiment, the end of the sliding member 32 remote from the supported element 2 (i.e., the second end of the sliding member 32) is a handle portion 321, which is formed with a through groove 3211 for allowing the second locking member to be inserted, and the extension direction of the through groove 3211 is perpendicular to the sliding direction of the sliding member 32. The size of the second locking member is larger than the size of the through port 351. When the second locking member locks the sliding member 32, the handle portion 321 extends through the through port 351, and the second locking member is inserted into the through groove 3211 and clamped at the through port 351. By lifting the handle portion 321 while the sliding member 32 is locked, a pre-clamping force can be applied between the load-bearing element 1 and the supported element 2, and in combination with the support member 31, a "jack-and-tension" coupling effect can be ensured. In addition, the second locking member is inserted into the through groove 3211, so that the second locking member locks the sliding member 32, which results in convenient operation.

[0033] In some specific embodiments, as shown in FIG. 1 and FIG. 7, the second locking member is two wedge-shaped blocks 36, the inclined surfaces of the two wedge-shaped blocks 36 are arranged opposite to each other and can slide relative to each other, and the size of at least one wedge-shaped block 36 is larger than the size of the through-hole 351. According to the characteristics of the wedge-shaped blocks 36, it can be seen that a large tensile force can be applied between the load-bearing element 1 and the supported element 2 by applying a small wedge action force. The larger the tensile force, the greater the firmness of the connection between the load-bearing element 1 and the supported element 2 under the supporting effect of the support member 31. In addition, the wedge-shaped blocks 36 are simple in structure, convenient for assembly or disassembly, firm and reliable, and convenient for mechanical operation. It should be noted that when the wedge-shaped blocks 36 are inserted into the through grooves 3211, the two wedge-shaped blocks 36 need to be stacked in the connection direction between the load-bearing element 1 and the supported element 2, and the tensile force between the load-bearing element 1 and the supported element 2 needs to be adjusted by utilizing the relative sliding of the two wedge-shaped blocks 36. It should be noted that when the wedge-shaped blocks 36 are inserted into the through grooves 3211, the wedge-shaped blocks 36 having a size larger than that of the through port 351 are adjacent to the through port 351.

[0034] Hereinafter, the operation process of the connecting device 3 will be described with reference to Figs. 6(a) to 6(g).

[0035] (1) Connection process: As shown in Figs. 6(a) to 6(e), a connection method using a connection device 3 will be described below by taking as an example a load-bearing element 1 and a supported element 2 that are connected vertically.

[0036] In S101, the load bearing element 1 and the supported element 2 are moved to align the sliding member 32 with the ejector rod .

[0037] In S102, when the load-bearing element 1 and the supported element 2 are moved toward each other in the connection direction (vertical direction in the figure), the ejector rod 34 pushes the sliding member 32, whereby the sliding member 32 slides upward within the guide tube 35 and actuates each locking arm 33 to slide upward, and due to cooperation between the slider 333 and the arc portion 3112 of the sliding groove 311, the first connecting arm 331 of each locking arm 33 simultaneously swings inward, and when each slider 333 slides to the junction between the arc portion 3112 and the straight portion 3111, each inner convex edge 332 of the locking arm 33 approaches the ejector rod 34, and each convex edge 332 and the flange 341 at the end of the ejector rod 34 can reach a preset lock level.

[0038] In S103, the two wedge-shaped blocks 36 are inserted into the through grooves 3211 of the sliding member 32, and the handle portion 321 of the sliding member 32 is lifted by the relative sliding of the two wedge-shaped blocks 36 until the upper edge of the convex edge portion 332 of each locking arm 33 contacts the lower edge of the flange of the ejector rod 34 and applies resistance to the lower edge. The handle portion 321 of the sliding member 32 is further lifted by the relative sliding of the two wedge-shaped blocks 36, and as a result, the supported element 2 contacts each supporting member 31 and applies resistance to each supporting member, resulting in a predetermined "jack-type and tension-type" connection state.

[0039] In the above connecting process, depending on the length of the arc portion 3112 of the sliding groove 311 and the ejector rod 34, in the process of lifting the handle portion 321 in S103, a state in which the upper edge of each convex edge portion 332 contacts the lower edge of the flange 341 to apply resistance to the lower edge and a state in which the supported element 2 contacts the support member 31 to apply resistance to the support member can be realized sequentially or simultaneously. In the process in S102 in which the ejector rod 34 pushes the sliding member 32, the supported element 2 may be in contact with each support member 31 to apply resistance to each support member when the inner convex edge portion 332 of each lock arm 33 is not completely attached to the ejector rod 34. At this time, the process may proceed to S103, and in the process of lifting the handle portion 321, the inner convex edge 332 of each locking arm 33 is completely attached to the ejector rod 34, and the upper edge of each convex edge 332 is in contact with the lower edge of the flange 341 and resistance is applied to the lower edge, thereby realizing a "jack-type and tension-type" connection state. Also, in the process of pushing the sliding member 32 by the ejector rod 34 in S102, the supported element 2 may be in contact with each support member 31 at the same time, and resistance may be applied to each support member, and the upper edge of the inner convex edge 332 of each locking arm 33 may be in contact with the lower edge of the flange 341 and resistance may be applied to the lower edge, and therefore, in the process of lifting the handle portion 321 in S103, the upper edge of the convex edge 332 may be in contact with the lower edge of the flange 341 and resistance may be applied to the lower edge. Only some possible situations are listed here, other situations are also possible when the load-bearing element 1 and the supported element 2 are connected by a top-lock-pull-out coupling device 3, and the steps of the connection method can be adjusted by a person skilled in the art according to the structure of the top-lock-pull-out coupling device 3, but will not be repeated here.

[0040] (2) Release process: As shown in Figures 6(e) to 6(g), for a load-bearing element 1 and a supported element 2 connected by an upper lock-pullout type connecting device 3, the supported element 2 is released by the following method.

[0041] In S201, when the two wedge-shaped blocks 36 are slowly pulled out of the through grooves 3211, the load-bearing element 1 and the supported element 2 move away from each other, and each locking arm 33 is actuated to move downward, and the sliding member 32 slides downward along the guide tube 35 due to the dragging action.

[0042] In S202, when the slider 333 of each lock arm 33 slides along the sliding groove 311 to the arc portion 3112 of the sliding groove 311, under cooperation of the slider 333 and the arc portion 3112, the first connecting arm of each lock arm 33 simultaneously swings outward, and each convex edge 332 is separated from the flange 341 to release the supported element 2.

[0043] As shown in Fig. 7 and Fig. 8, in one embodiment, the ejector rod 34 is cylindrical. There are three support members 31 evenly distributed around the sliding member 32, and there are also three first locking members (i.e., locking arms 33) arranged in one-to-one correspondence with the support members 31. During locking the ejector rod 34, the three first locking members jointly clamp the ejector rod 34 to lock the ejector rod 34. It should be understood that there may be more than three support members 31 and more than three first locking members. By adopting a cylindrical ejector rod 34, the rotation angle generated between the supported element 2 and the load-bearing element 1 around the axis of the ejector rod 34 can be better adjusted, which is favorable for expanding the application range of the coupling device.

[0044] As shown in Figs. 9-16, in another embodiment, the second locking member is a nut 37, the axial direction of the nut 37 is consistent with the sliding direction of the sliding member 32, the size of the nut 37 is larger than the size of the through-port 351, and the nut 37 is installed on the second side of the load-bearing element 1. The second end of the sliding member 32 is a handle portion 321, which is provided with a male thread to engage with the nut 37. In this embodiment, by using the nut 37 as the second locking member, the sliding member 32 is locked by the screwing of the nut 37 and the sliding member 32. According to the characteristics of the thread, it can be seen that a large tensile force can be applied between the load-bearing element 1 and the supported element 2 by applying a small screw tightening force. The larger the tensile force, the greater the firmness of the connection between the load-bearing element 1 and the supported element 2 under the supporting effect of the support member 31. In addition, the nut 37 has a simple structure, is convenient to assemble or disassemble, is stable and reliable, and is convenient to operate mechanically. It should be noted that when the nut 37 is used as the second locking member, the handle portion 321 of the sliding member 32 can be lifted by an additional lifting string or by a manual lifting method, and the lifting and tensioning can also be realized by a screwing action between the nut 37 and the handle portion 321.

[0045] In order to quickly unlock the sliding member 32, as shown in Figs. 9 to 16, slideways 371 extending through the nut 37 in the sliding direction of the sliding member 32 are formed on both sides of the inner circumference of the nut 37, and the width of the handle portion 321 is smaller than the width of the slideways 371. As shown in Fig. 16, the male threads of the handle portion 321 are disposed on the outer walls of both ends of the handle portion 321 in the longitudinal direction. When the nut 37 is screwed into a state in which the two slideways 317 are aligned with the two ends of the handle portion 321 in the longitudinal direction, the handle portion 321 is slidably fitted between the two slideways 371, and the sliding member 32 can slide relative to the nut 37, thereby realizing a quick unlocking.

[0046] As shown in FIG. 17 and FIG. 18, based on the above-mentioned top lock-pull-out type coupling device 3, the second embodiment of the present application provides an immersed caisson construction ship used for transporting or immersing an immersed caisson. The immersed caisson construction ship includes a first floating body 4 and a second floating body 5 arranged in parallel, and a deck bridge 6 connected between the first floating body 4 and the second floating body 5. The multiple coupling devices 3 described in any one of the above-mentioned embodiments are distributed on the deck bridge 6 to respectively connect various parts of the immersed caisson 7, in which case the deck bridge 6 functions as a load-bearing element, and the immersed caisson 7 functions as a supported element. The immersed caisson construction ship can realize the coupling between the ship and the immersed caisson through the coupling device 3, realize the firm coupling of "jacking and tensioning" between the ship and the immersed caisson to ensure the safety of construction, and realize the rapid release of the immersed caisson 7, thereby realizing the rapid separation of the ship and the immersed caisson in an emergency, which is favorable to improve construction efficiency and reduce labor.

[0047] In this embodiment, the connection direction between the load-bearing element 1 and the supported element 2, the pushing direction of the ejector rod 34, the sliding direction of the sliding member 32, the extension direction of the straight portion 3111, the length direction of the handle portion 321, and the axial direction of the nut 37 are substantially parallel, and are all embodied as vertical directions in the drawings.

[0048] Finally, it should be noted that each embodiment in the above description can be described in a progressive manner, each embodiment focuses on the differences with other embodiments, and the same and similar features between various embodiments can be mutually referred to. Moreover, the embodiments are described only as preferred embodiments of the present application, and are not intended to limit the scope of the present application. Various modifications and improvements made to the technical solutions of the present application by those skilled in the art without departing from the design spirit of the present application shall be encompassed within the scope of protection granted by the claims of the present application.

Claims

1. 1. A top lock pull-out type coupling device for connection between a load bearing element and a supported element, comprising: The top lock pull-out type coupling device is a support member fixedly connected to the load bearing element and located on a first side of the load bearing element facing the supported element; a sliding member that is slidable relative to the load bearing element in a connecting direction of the load bearing element and the supported element; an ejector rod used to push the sliding member, fixedly connected to the supported element, installed on a first side of the supported element facing the load-bearing element and arranged on the opposite side of the sliding member; a first locking member used to lock the ejector rod, movably connected between a first end of the sliding member close to the supported element and the support member, and operable by the sliding member to move toward or away from the ejector rod; a second locking member used to lock the sliding member, the second locking member being connected between a second end of the sliding member remote from the supported element and the load-bearing element; Equipped with The top lock pull-out type coupling device is When the supported element and the load-bearing element move toward each other in the coupling direction, the ejector rod pushes the sliding member to slide in a direction away from the supported element, and the sliding member activates the first locking member to move closer to the ejector rod. After the supported element moves against the support member to resist the support member, the sliding element is locked and connected to the load-bearing element via the second locking element, and at the same time, the first locking element fits against the ejector rod to lock the ejector rod; and after the second locking member is released from the lock on the sliding member, as the supported element and the load-bearing element move away from each other in the coupling direction, the sliding member slides in a direction approaching the supported element due to the pulling force of the first locking member and the ejector rod, and the first locking member moves away from the ejector rod to release the ejector rod; Consists of a top lock pull-out coupling.

2. 2. The top lock-pull-out coupling device of claim 1, wherein there are a plurality of support members evenly distributed around the sliding member, and a plurality of first locking members arranged in one-to-one correspondence with the support members, and while locking the ejector rod, the plurality of first locking members collectively clamp the ejector rod to lock the ejector rod.

3. a flange is provided at a first end of the ejector rod remote from the supported element, and each of the first locking members is a locking arm having a first end hinged to the sliding member and a second end slidably connected to the support member, the locking arm being provided with a convex edge on a side adjacent to the ejector rod for clamping the flange; The top lock pull-out type coupling device is When the sliding member slides away from the supported element, the second end of the locking arm slides toward the ejector rod to actuate the convex edge to move closer to the ejector rod and clamp the flange; and when the sliding member slides in a direction approaching the supported element, the second end of the locking arm slides in a direction away from the ejector rod to actuate the convex edge portion to move in a direction away from the ejector rod and release the ejector rod; 3. The top lock pull out coupling device of claim 2, wherein said top lock pull out coupling device is configured as follows:

4. Each of the support members is provided with a sliding groove, the sliding groove including a straight portion and a continuously connected arc portion, the straight portion being arranged in a sliding direction of the sliding member and extending from a first end of the straight portion close to the load-bearing element to a second end of the straight portion close to the supported element, the first end of the arc portion being connected to the second end of the straight portion, the arc portion being curved directly toward the supported element and away from the ejector rod, and each of the locking arms is curved perpendicularly to each other with a convex edge.

4. The top lock-pull-out coupling device of claim 3, comprising a first coupling arm and a second coupling arm connected together, a first end of the first coupling arm being hinged to the sliding member, the convex edge being connected to a side of the second end of the first coupling arm adjacent to the ejector rod, the first end of the second coupling arm being slidably connected to the sliding groove by a slider, and the second end of the second coupling arm being perpendicularly connected to the second end of the first coupling arm and located away from the convex edge.

5. 4. The top lock-pullout coupling of claim 3, wherein the ejector rod is cylindrical and configured to contact the sliding member and push the sliding member, and there are at least three support members.

6. 2. The top lock-pull-out coupling of claim 1, further comprising a guide tube fixedly attached to the load bearing element, the guide tube being disposed in a sliding direction of the sliding member and extending through the load bearing element, the sliding member being slidably fitted within the guide tube, and when the second locking member locks the sliding member, the second locking member is coupled to the second end of the sliding member and clamped at a through port of the guide tube on a second side of the load bearing element away from the supported element.

7. 7. The top-lock-pull-out coupling according to claim 6, wherein the second end of the sliding member is a handle portion having a through groove through which the second locking member can be inserted, the extension direction of the through groove is perpendicular to the sliding direction of the sliding member, the size of the second locking member is larger than the size of the through port, and when the second locking member locks the sliding member, the handle portion extends through the through port, and the second locking member is inserted into the through groove and clamped at the through port.

8. 8. The top-lock-pull-out coupling device according to claim 7, wherein the second locking member is two wedge-shaped blocks, the inclined surfaces of the two wedge-shaped blocks are arranged opposite to each other and are slidable relative to each other, and the size of at least one wedge-shaped block is larger than the size of the through port.

9. 7. The top lock-pull-out coupling of claim 6, wherein the second locking member is a nut, the axial direction of the nut coincides with the sliding direction of the sliding member, the size of the nut is larger than the size of the through port, and the second end of the sliding member is a handle portion having an external thread to fit with the nut.

10. 10. The top lock-pullout coupling of claim 9, wherein two opposing sides of an inner circumference of the nut are formed with slideways extending through the nut in a sliding direction of the sliding member, the width of the handle portion is smaller than the width of the two slideways, the male threads are disposed on outer walls of two longitudinal ends of the handle portion, and the handle portion is slidably fitted between the two slideways when the nut is rotated until the two slideways are aligned with the two longitudinal ends of the handle portion.

11. An immersed can construction vessel used for transporting or immersing an immersed can, comprising a first floating body and a second floating body arranged substantially in parallel, and a deck bridge connected between the first floating body and the second floating body, wherein a plurality of top lock pull-out type connection devices described in any one of claims 1 to 10 are distributed on the deck bridge to connect various parts of the immersed can, the deck bridge functioning as the load-bearing element and the immersed can function as the supported element.

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