Immersed tube water steel buoy capable of being stably and rapidly installed

Abstract

The utility model relates to the technical field of immersed tube installation, and discloses an immersed tube water steel buoy capable of being stably and rapidly installed, a plurality of groups of sling mechanisms are arranged on one side, staggered with lifting lugs, of a buoy body of a buoyancy buoy, and a plurality of groups of lifting hook mechanisms are arranged on the other side, staggered with the lifting lugs, of the buoy body of the buoyancy buoy. A water inlet valve is installed at the bottom end of one side of a barrel body of the buoyancy barrel in a communicating mode, and an exhaust valve is installed at the top end of the other side of the barrel body of the buoyancy barrel in a communicating mode. The buoyancy cylinder is used as a buoyancy component, the lifting hook mechanism is connected with a sling of the sling mechanism in a hanging mode, the immersed tube is hooped and fixed to the buoyancy cylinder through a flexible lifting rope in the lifting hook mechanism, then a diver dives to open a water inlet valve and an exhaust valve of the steel buoy, the steel buoy is gradually filled with water, and after buoyancy of the buoyancy cylinder completely disappears, the immersed tube is fixed to the water inlet valve and the exhaust valve of the steel buoy. The immersed tube is separated from the buoyancy cylinder by the diver, and the buoyancy cylinder is directly lifted out of the water surface by the crane. Compared with an existing air bag form, the air bag is higher in stability and durability.

Description

Technical Field

[0001] The utility model relates to the technical field of immersed tube installation, in particular to a steel buoy on water for immersed tubes which can be installed stably and quickly. Background Art

[0002] The immersed tube construction technology refers to prefabricating reinforced concrete pipe sections or all-steel pipe sections in a dry dock or on a large barge, sealing both ends, and then floating them to the designated waters, and then filling water to bury them in the designed position to fix them, so as to build the required cross-river pipeline or large underwater space. When the immersed tube is immersed in water, a buoyancy airbag is usually tied to the outside of the immersed tube to reduce the sinking speed of the immersed tube. However, the existing method of using a buoyancy airbag to slow down the sinking speed of the immersed tube is greatly affected by the impact of the water flow, and the buoyancy stability is poor, which can easily cause the immersed tube to deflect and displace, and the service life of the buoyancy airbag is limited, and the ability to be used again at the construction site is insufficient. To this end, those skilled in the art provide a stable and fast-installed steel buoy for immersed tubes on the water to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0003] The main purpose of the utility model is to provide a stable and fast-installed submerged tube steel float, which can effectively solve the problem of poor buoyancy diving stability of existing submerged tubes in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a stable and fast-installed submerged tube water steel buoy, comprising a buoyancy tube and a lifting lug installed on the upper end of the buoyancy tube body;

[0005] A plurality of sling mechanisms are arranged on one side of the buoyancy tube body staggered from the lifting lug, and a plurality of hook mechanisms are arranged on the other side of the buoyancy tube body staggered from the lifting lug, and each sling mechanism and each hook mechanism are horizontally opposite to each other;

[0006] One side of the cylinder body of the buoyancy cylinder is connected to a water inlet valve at the bottom position, and the other side of the cylinder body of the buoyancy cylinder is connected to a water exhaust valve at the top position.

[0007] As a further solution of the utility model: the sling mechanism includes a first side support frame, the middle part of the bracket of the first side support frame is rotatably connected with a rotating shaft, and the middle part of the shaft rod of the rotating shaft is sleeved with a sling.

[0008] As a further solution of the utility model: the hook mechanism includes a second side support frame, a rotating frame is installed on the upper end of the bracket of the second side support frame, a winding drum is rotatably connected inside the bracket of the rotating frame, and a flexible lifting rope is wound around the outer side of the drum of the winding drum, a hook is arranged on the top end of the flexible lifting rope, and a locking component adapted to the winding drum is arranged on one side of the bracket of the rotating frame.

[0009] As a further solution of the utility model: a traction rod guided by the flexible suspension rope is symmetrically arranged on one side of the bracket of the rotating frame.

[0010] As a further solution of the utility model: the locking component includes an arm force frame installed on one side of the rotating frame bracket and a spline groove opened at one end of the central axis of the winding reel, a guide sleeve is installed through the middle part of the bracket of the arm force frame, a prismatic guide rod is slidably connected inside the shaft sleeve of the guide sleeve, a push handle is provided at one end of the arm rod of the prismatic guide rod, and a spline shaft meshing with the spline groove is provided at the other end of the arm rod of the prismatic guide rod, and the prismatic guide rod and the guide sleeve are fixed by means of a positioning pin.

[0011] As a further solution of the utility model: a plurality of groups of inner support brackets are arranged inside the cylinder body of the buoyancy cylinder, and the inner support brackets are of a cross structure.

[0012] As a further solution of the utility model: the buoyancy tube is connected to the immersed tube hoop through a flexible suspension rope, and the contact part between the immersed tube and the buoyancy tube is wrapped with a wear-resistant geomembrane.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When assisting the sinking of a submerged tube, the utility model utilizes the buoyancy tube as a buoyancy component to support the buoyancy of the submerged tube, and then utilizes the sling hook mechanism to connect with the sling mechanism so that the flexible sling rope in the sling hook mechanism fixes the submerged tube hoop on the buoyancy tube. After the subsequent sinking of the tube is completed, the diver dives to open the water inlet valve and the exhaust valve of the steel buoy so that the water gradually fills the steel buoy. While the buoyancy tube is being filled with water, its buoyancy gradually disappears. When the buoyancy completely disappears, the diver dives again to release the locking state of the sling mechanism and the hook mechanism, so that the submerged tube is separated from the buoyancy tube. At this time, the buoyancy tube can be directly lifted out of the water by a crane. After the water inside the buoyancy tube is emptied, it can be recycled again. Compared with the existing air bag form, the utility model has higher stability and durability and can adapt to complex water flow environment and long-term use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a stable and fast-installed submerged tube steel buoy in the utility model;

[0016] Figure 2 It is a partial cross-sectional view of a buoyancy tube in a stable and fast-installed submerged tube water steel buoy of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a sling mechanism in a stable and fast-installed submerged tube steel buoy of the utility model;

[0018] Figure 4This is a structural schematic diagram of a hook mechanism in a steel buoy on a submerged tube that can be stably and quickly installed according to the utility model;

[0019] Figure 5 The utility model is a schematic diagram of assembling a submerged tube in a stable and fast-installed submerged tube water steel buoy.

[0020] In the figure: 1. buoyancy tube; 11. inner support bracket; 2. lifting ear; 3. sling mechanism; 31. first side support frame; 32. rotating shaft; 33. sling; 4. hook mechanism; 41. second side support frame; 42. rotating frame; 43. winding drum; 44. traction rod; 45. flexible lifting rope; 46. hook; 47. spline groove; 48. arm frame; 49. push handle; 410. prismatic guide rod; 411. guide sleeve; 412. spline shaft; 5. water inlet valve; 6. exhaust valve; 7. immersed tube. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1-5 As shown, a stable and quickly installed steel buoy for an immersed tube on water comprises a buoyancy tube 1 and a lifting lug 2 installed on the upper end of the buoyancy tube 1. The lifting lug 2 is provided as a lifting component between a crane vessel and the buoyancy tube 1, so that the crane vessel can lift the buoyancy tube 1 at a specified position of the immersed tube 7.

[0025] A plurality of sling mechanisms 3 are arranged on one side of the body of the buoyancy tube 1 which is staggered from the lifting ear 2. The sling mechanism 3 includes a first side support frame 31. A rotating shaft 32 is rotatably connected in the middle of the support of the first side support frame 31, and a sling 33 is sleeved in the middle of the shaft of the rotating shaft 32. By utilizing the sling 33 in the sling mechanism 3 and the hook 46 in the hook mechanism 4 to form a hoop, the submerged tube 7 is fixed on the buoyancy tube 1 by a hoop. The buoyancy tube 1 is used as a buoyancy component to drive the submerged tube 7 to sink.

[0026] A plurality of groups of hook mechanisms 4 are arranged on the other side of the cylinder body of the buoyancy cylinder 1, which is staggered from the lifting ear 2. Each group of sling mechanisms 3 and each group of hook mechanisms 4 are horizontally opposite to each other. The hook mechanism 4 includes a second side support frame 41. A rotating frame 42 is installed on the upper end of the bracket of the second side support frame 41. A winding drum 43 is rotatably connected to the inside of the bracket of the rotating frame 42, and a flexible lifting rope 45 is wound around the outer side of the drum of the winding drum 43. A hook 46 is arranged on the top of the flexible lifting rope 45. A traction rod 44 guided by the flexible lifting rope 45 is symmetrically arranged on one side of the bracket of the rotating frame 42. The flexible lifting rope 45 is wound by the winding drum 43. When the submerged tube 7 is hooped and positioned, the flexible lifting rope 45 is pulled out from the winding drum 43 and wrapped around the submerged tube 7 until the hook 46 at the top of the flexible lifting rope 45 is hooked on the sling 33. The hoop of the flexible lifting rope 45 is used to fix the submerged tube 7 on the buoyancy cylinder 1.

[0027] A locking component adapted to the winding drum 43 is provided on one side of the bracket of the rotating frame 42, and the locking component includes an arm force frame 48 installed on one side of the bracket of the rotating frame 42 and a spline groove 47 opened at one end of the central axis of the winding drum 43. A guide sleeve 411 is installed through the middle of the bracket of the arm force frame 48, and a prismatic guide rod 410 is slidably connected inside the sleeve of the guide sleeve 411. A push handle 49 is provided at one end of the arm rod of the prismatic guide rod 410, and a spline shaft 412 meshing with the spline groove 47 is provided at the other end of the arm rod of the prismatic guide rod 410. The prismatic guide rod 410 is fixed to the guide sleeve 411 by means of a positioning pin. After the buoyancy tube 1 is integrally connected to the submerged tube 7, the push handle 49 is pushed to drive the prismatic guide rod 410 to move forward along the guide sleeve 411, pushing the spline shaft 412 into the spline groove 47 to form a locked engagement state, locking the winding drum 43 to limit its position, stopping its line-releasing function, and allowing the flexible suspension rope 45 to maintain a suitable line-releasing length, thereby performing a stable hoop positioning on the submerged tube 7. It has better flexibility and adaptability, and can adapt to the hoop positioning work of submerged tubes 7 of different styles.

[0028] One side of the cylinder body of the buoyancy cylinder 1 is connected and installed with a water inlet valve 5 at the bottom position, and the other side of the cylinder body of the buoyancy cylinder 1 is connected and installed with an exhaust valve 6 at the top position. When the buoyancy cylinder 1 sinks, the diver dives to open the water inlet valve 5 and the exhaust valve 6 of the buoyancy cylinder 1, so that water is gradually poured into the buoyancy cylinder 1, and the buoyancy of the buoyancy cylinder 1 is gradually reduced. When the buoyancy disappears completely, the diver dives again to release the locking state of the sling mechanism 3 and the hook mechanism 4, so that the submerged tube 7 is separated from the buoyancy cylinder 1. At this time, the buoyancy cylinder 1 can be directly lifted out of the water by a crane. After the water inside the buoyancy cylinder 1 is emptied, it can be recycled again.

[0029] A plurality of groups of inner support brackets 11 are arranged inside the cylinder body of the buoyancy cylinder 1, and the inner support brackets 11 are cross structures. By installing the inner support brackets 11 inside the buoyancy cylinder 1, the firmness of the overall structure of the buoyancy cylinder 1 can be improved to prevent extrusion deformation.

[0030] The buoyancy tube 1 is connected to the ring hoop of the immersed tube 7 through a flexible suspension rope 45, and the contact part between the immersed tube 7 and the buoyancy tube 1 is wrapped with a wear-resistant geomembrane. By wrapping the geomembrane at the contact part between the immersed tube 7 and the buoyancy tube 1, the anti-corrosion coating of the immersed tube 7 is prevented from being damaged when the tube is immersed.

[0031] The working principle of the utility model is as follows: when assisting the sinking of the submerged tube, firstly, the whole structure of the buoyancy tube 1 is hoisted to the middle of the submerged tube 7 by using a crane, so that the buoyancy tube 1 and the submerged tube 7 are close to each other, and at the same time, a geomembrane is wrapped in advance at the contact part between the submerged tube 7 and the buoyancy tube 1 to prevent the anti-corrosion coating of the submerged tube 7 from being damaged when the tube is sunk;

[0032] Then, the flexible lifting rope 45 is wound by the winding drum 43 in the hook mechanism 4, and the flexible lifting rope 45 is pulled out from the winding drum 43 and wrapped around the submerged tube 7 until the hook 46 at the top of the flexible lifting rope 45 is hooked on the sling 33, and the submerged tube 7 is fixed to the buoyancy cylinder 1 by the hoop of the flexible lifting rope 45. After the buoyancy cylinder 1 and the submerged tube 7 are integrally connected, the winding drum 43 is locked and limited by the locking component to stop its line-releasing function, so that the flexible lifting rope 45 maintains a suitable line-releasing length, and the submerged tube 7 is stably positioned by the hoop;

[0033] Finally, after the submerged tube 7 sinks, the diver dives to open the water inlet valve 5 and the exhaust valve 6 of the buoyancy cylinder 1, so that water is gradually poured into the buoyancy cylinder 1, and the buoyancy of the buoyancy cylinder 1 is gradually reduced. Its buoyancy disappears completely, and the submerged tube 7 sinks smoothly to the bottom of the water. After the submerged tube 7 sinks completely to the bottom, the diver dives again to release the locking state of the sling mechanism 3 and the hook mechanism 4, so that the submerged tube 7 is separated from the buoyancy cylinder 1. At this time, the buoyancy cylinder 1 can be directly lifted out of the water by a crane. After the water inside the buoyancy cylinder 1 is emptied, it can be recycled again.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stable and fast-installed submerged tube steel buoy, characterized in that: It comprises a buoyancy tube (1) and a lifting lug (2) installed on the upper end of the buoyancy tube (1); A plurality of groups of sling mechanisms (3) are arranged on one side of the body of the buoyancy cylinder (1) that is staggered from the lifting lug (2), and a plurality of groups of hook mechanisms (4) are arranged on the other side of the body of the buoyancy cylinder (1) that is staggered from the lifting lug (2), and each group of sling mechanisms (3) and each group of hook mechanisms (4) are horizontally opposite to each other; A water inlet valve (5) is installed at the bottom of one side of the cylinder body of the buoyancy cylinder (1), and an exhaust valve (6) is installed at the top of the other side of the cylinder body of the buoyancy cylinder (1).

2. A stable and fast-installed submerged tube steel buoy according to claim 1, characterized in that: The sling mechanism (3) comprises a first side support frame (31), the middle part of the support of the first side support frame (31) is rotatably connected to a rotating shaft (32), and the middle part of the shaft of the rotating shaft (32) is sleeved with a sling (33).

3. A stable and fast-installed submerged tube steel buoy according to claim 1, characterized in that: The hook mechanism (4) comprises a second side support frame (41), a rotating frame (42) is installed on the upper end of the support of the second side support frame (41), a winding drum (43) is rotatably connected inside the support of the rotating frame (42), and a flexible lifting rope (45) is wound around the outer side of the drum of the winding drum (43), a hook (46) is arranged at the top end of the flexible lifting rope (45), and a locking component matched with the winding drum (43) is arranged on one side of the support of the rotating frame (42).

4. A stable and fast-installed submerged tube steel buoy according to claim 3, characterized in that: A traction rod (44) guided by a flexible suspension rope (45) is symmetrically arranged on one side of the support of the rotating frame (42).

5. The stable and fast-installed submerged tube steel buoy according to claim 3, characterized in that: The locking component comprises an arm force frame (48) installed on one side of the rotating frame (42) bracket and a spline groove (47) opened at one end of the central axis of the winding drum (43); a guide sleeve (411) is installed through the middle of the bracket of the arm force frame (48); a prismatic guide rod (410) is slidably connected inside the shaft sleeve of the guide sleeve (411); a push handle (49) is provided at one end of the arm rod of the prismatic guide rod (410), and a spline shaft (412) meshing with the spline groove (47) is provided at the other end of the arm rod of the prismatic guide rod (410); the prismatic guide rod (410) and the guide sleeve (411) are fixed by means of a positioning pin.

6. The stable and fast-installed submerged tube steel buoy according to claim 1, characterized in that: A plurality of groups of inner support brackets (11) are arranged inside the cylinder body of the buoyancy cylinder (1), and the inner support brackets (11) are of a cross structure.

7. The stable and fast-installed submerged tube steel buoy according to claim 1, characterized in that: The buoyancy cylinder (1) is connected to the immersed tube (7) hoop via a flexible suspension rope (45), and the contact portion between the immersed tube (7) and the buoyancy cylinder (1) is wrapped with a wear-resistant geomembrane.

Images