A hanging and detaching lifting device for an underwater guide frame

Abstract

The underwater guide frame hanging and detaching lifting appliance comprises an upper joint (100) connected with a crane, a tubular shell (120) of the upper joint (100) is provided with a plurality of uniformly distributed pin holes (122), a lower joint (200) connected with an underwater guide frame and inserted and connected with the upper joint (100), the lower joint (200) is provided with a pin (220) pushed by an elastic member, and the pin (220) is inserted into the pin hole (122). The underwater guide frame hanging and detaching lifting appliance can effectively improve the hoisting efficiency, improve the safety of personnel and equipment, and reduce the hoisting cost.

Description

A type of underwater guide frame detachment lifting device Technical Field

[0001] This invention relates to a lifting device, and more particularly to a lifting device for hooking and unhooking during the installation of underwater guide frames, which enables rapid hooking and unhooking operations and belongs to the field of marine lifting technology. Background Technology

[0002] Currently, in the construction of offshore wind power, underwater guide frames are a type of equipment used in the early stages of offshore wind power installation to assist in the driving of four single-column pile foundations. They mainly play a role in guiding and positioning the pile foundations during the pile driving process, and the hoisting efficiency and safety during the installation process are extremely important.

[0003] In traditional construction processes, the hoisting of underwater guide frames requires workers to climb the frame to attach and detach the hoisting ropes. For example, our company's Chinese patent CN113734948A, "Underwater Guide Frame Anti-sinking Structure and its Lifting Method," employs manual methods for attachment and detachment. Furthermore, this method requires the installation of ladders on the guide frame, increasing its weight, resulting in high costs, low efficiency, and difficulty in ensuring personnel safety. Therefore, a solution that can address these problems is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an underwater guide frame detachment lifting device that can effectively improve lifting efficiency, enhance the safety of personnel and equipment, and reduce lifting costs.

[0005] The objective of this invention is achieved as follows:

[0006] A hook-and-drop device for an underwater guide frame, comprising:

[0007] The upper connector is connected to the crane, and the tubular shell of the upper connector is provided with multiple evenly distributed pin holes;

[0008] The lower connector is connected to the underwater guide frame and plugged into the upper connector. The lower connector is equipped with a flexible push pin, which is inserted into the pin hole.

[0009] Preferably, the end of the pin inserted into the lower connector is provided with a third conical surface facing upward and a fourth conical surface facing downward respectively; an end cap is installed at the bottom of the upper connector, and a first conical surface is provided at the bottom of the end cap, which slides in conjunction with the third conical surface.

[0010] The separation device is installed inside the tubular housing. The pressure ring of the separation device is connected to the support plate via a second hydraulic module. The support plate is connected to the end cap via a support that passes through the pressure ring. The bottom surface of the pressure ring is a second conical surface that slides in conjunction with a third conical surface. Furthermore, the second conical surface of the pressure ring, when used in conjunction with the third conical surface of the pin, facilitates the connection and separation of the upper and lower connectors. When the upper connector falls into the lower connector, the first conical surface on the end cap acts on the third conical surface of the pin, causing the pin to move outward along the pin tube. When the upper and lower connectors need to disengage, the second hydraulic module first pushes the pressure ring downward, and the second conical surface on the pressure ring acts on the third conical surface of the pin, initially pushing the pin out of the pin hole. Then, the pin hole on the tubular housing acts on the fourth conical surface of the pin, completely pushing the pin out of the pin hole, thus achieving disengagement.

[0011] Preferably, the pin tube is inserted into the lower connector, the pin is slidably disposed inside the pin tube, a pin tube cap is provided on the end of the pin tube outside the lower connector, the spring is located inside the pin tube and between the pin tube cap and the pin, and the pin is inserted into the pin hole under the push of the spring.

[0012] Preferably, the inner wall of the pin tube is provided with a slider, and the pin is provided with a groove, and the slider is slidably disposed in the groove.

[0013] Preferably, the pin has a safety pin hole; the safety device is installed inside the tubular housing, and the safety pin bracket of the safety device is connected to the connecting plate through the first hydraulic module. A safety pin is vertically arranged on the safety pin bracket, and the first hydraulic module pushes the safety pin into the safety pin hole.

[0014] Preferably, the present invention further includes a positioning device, which includes a guide block disposed on the tubular shell, and a spiral groove surface provided on the inner wall of the lower connector, the guide block sliding on the spiral groove surface. Before the underwater guide frame is lifted, the upper connector is lowered, and the positioning device can make the pin coaxial with the pin hole;

[0015] The spiral groove of the positioning device is tangent to the inner surface of the pin hole. This makes the alignment of the pin and the pin hole more precise.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In the installation of underwater guide frames, the lifting rings are typically positioned high to facilitate the removal of the lifting ropes after the underwater guide frame enters the water for subsequent construction. Traditional lifting methods involve directly connecting the lifting ropes to the underwater guide frame, requiring the installation of a climbing frame and manual hooking and unhooking by workers. In contrast, the quick-release lifting device allows workers to directly operate the crane and lifting equipment to hook and unhook the equipment, providing a fast and efficient lifting method while ensuring worker safety. The guide blocks and spiral grooves on the upper and lower joints, along with the first conical surface on the end cap, enhance the hooking process. Furthermore, the safety device in the quick-release lifting device prevents accidental unhooking during lifting, further improving construction safety. Attached Figure Description

[0018] Figure 1 is an overall appearance view of the present invention;

[0019] Figure 2 is a front view of the upper connector of the present invention;

[0020] Figure 3 is an exploded view of the upper connector of the present invention;

[0021] Figure 4 is an exploded view of the safety device of the present invention;

[0022] Figure 5 is an exploded view of the separation device of the present invention;

[0023] Figure 6 is an isometric sectional view of the lower connector of the present invention;

[0024] Figure 7 is an exploded view of the lower connector of the present invention;

[0025] Figure 8 is an isometric view of the pin of the present invention;

[0026] Figures 9-13 are schematic diagrams of the hooking process of the upper and lower connectors of the present invention;

[0027] Figure 14 is a schematic diagram of the operation of the safety device of the present invention;

[0028] Figures 15-17 are schematic diagrams of the separation process of the upper and lower connectors of the present invention;

[0029] in:

[0030] Upper connector 100, lower connector 200;

[0031] 110 rings;

[0032] Tubular shell 120, guide block 121, pin hole 122;

[0033] End cap 130, first conical surface 131, end cap bolt group 132, connecting plate 133, support column 134;

[0034] Safety device 140, safety pin 141, safety pin bracket 142, first hydraulic module 143, first hydraulic module bolt group 144, first flange bolt group 145;

[0035] Separation device 150, pressure ring 151, second flange bolt group 152, second hydraulic module 153, second hydraulic module bolt group 154, support plate 155, support plate bolt group 156.

[0036] Spiral groove surface 210, pin 220, pin tube 230, inner conical surface 240;

[0037] Safety pin hole 221, third conical surface 222, fourth conical surface 223, slide groove 224;

[0038] Spring 231, pin cap 232, slider 233, pin cap bolt assembly 234. Detailed Implementation

[0039] Referring to Figures 1, 2, and 6, the present invention relates to a lifting device for an underwater guide frame, comprising an upper connector 100 and a lower connector 200. The upper connector 100 is connected to a lifting rope, and the lower connector 200 is connected to the underwater guide frame to be lifted. Before lifting, the upper connector 100 and the lower connector 200 are independent of each other. When preparing for lifting, the upper connector 100 falls into the lower connector 200, and after being positioned by the guide block 121 and the spiral groove surface 210, the pin 220 is engaged with the pin hole 122. During detachment, the separation device 150 actuates, causing the pin 220 to disengage from the pin hole 122, thereby pulling out the upper connector 100.

[0040] Referring to Figures 2 and 3, the upper connector 100 includes: a lifting ring 110, a tubular housing 120, an end cap 130, a safety device 140, and a separation device 150;

[0041] The outer wall of the tubular housing 120 is provided with evenly distributed guide blocks 121 and pin holes 122. The lifting ring 110 is installed on the top of the outer wall of the tubular housing 120. The safety device 140 and the separation device 150 are installed inside the tubular housing 120. The end cap 130 is installed at the bottom of the tubular housing 120.

[0042] The end cap 130 has a conical structure with a first conical surface 131 on its bottom outer wall. The upper part of the end cap 130 is connected to the tubular shell 120 through the end cap bolt group 132. A connecting plate 133 is provided on the top of the end cap 130. At the same time, the middle part of the end cap 130 is connected to the separation device 150 through the support column 134.

[0043] Referring to Figure 4, the safety device 140 includes: a safety pin 141, a safety pin bracket 142, a first hydraulic module 143, a first hydraulic module bolt group 144, and a first flange bolt group 145; the safety pin 141 is welded to the safety pin bracket 142, the first hydraulic module 143 is connected to the safety pin bracket 142 through the first flange bolt group 145, and is connected to the connecting plate 133 through the first hydraulic module bolt group 144; thereby, the safety pin 141 is pushed by the first hydraulic module 143 to engage with the safety pin hole 221.

[0044] Referring to 5, the separation device 150 includes: a pressure ring 151, a second flange bolt group 152, a second hydraulic module 153, a second hydraulic module bolt group 154, a support plate 155, and a support plate bolt group 156. The second hydraulic module 153 is connected to the pressure ring 151 via the second flange bolt group 152, and is connected to the support plate 155 via the second hydraulic module bolt group 154; the support plate 155 is connected to the support 134 via the support plate bolt group 156.

[0045] Referring to Figures 6-8, the lower connector 200 is also a tubular structure: multiple evenly distributed spiral grooves 210 are provided on the inner wall surface of the lower connector 200. The pin tube 230 is inserted into the lower connector 200, and the lower connector 200 is located at the lowest point of the spiral grooves 210. The end of the pin tube 230 is fitted with a pin tube cap 232 through a pin tube cap bolt assembly 234. The fixing spring 231 and the pin 220 are disposed inside the pin tube 230. The aforementioned pin tube cap 232 serves to fix the end position of the spring 231. The spring 231 provides a thrust to the pin 220 as it slides within the pin tube 230. Simultaneously, a slider 233 is provided along the length of the inner wall of the pin tube 230, and a groove 224 is provided along the length of the outer wall of the pin 220. The slider 233 and the groove 224 cooperate to restrict the rotation of the pin 220. Furthermore, an inner conical surface 240 at the bottom end of the lower connector 200 acts on the end cap 130, limiting the position of the upper connector 100 as it falls.

[0046] Meanwhile, the upper and lower ends of the pin 220 inserted into the lower connector 200 are respectively provided with a third conical surface 222 and a fourth conical surface 223, and a safety pin hole 221 is provided on the fourth conical surface 223. The safety pin hole 221 allows the safety pin 141 to be inserted for locking to ensure safety.

[0047] The following diagram illustrates how to use this patent:

[0048] See Figures 9-13. When preparing for hoisting, the upper connector 100 descends above the lower connector 200 at any circumferential angle; until, as shown in Figure 10, the first conical surface 131 on the end cap 130 acts on the third conical surface 222 on the pin 220, causing the pin 220 to move outwards, and then the upper connector 100 continues to fall; when the upper connector 100 falls to a certain position, the guide block 121 contacts the spiral groove surface 210 and begins to slide along it, simultaneously driving the upper connector 100 to spiral downwards; as shown in Figure 13, when the end cap 130 contacts the inner conical surface 240, the upper connector 100 stops falling. At this time, the pin hole 122 and the pin 220 are coaxial, and the pin 220 is engaged in the pin hole 122 under the action of the spring 231, completing the hooking.

[0049] Referring to Figure 14, after the upper connector 100 and the lower connector 200 are successfully hooked, the safety device 140 is activated. Specifically, the first hydraulic module 143 pushes the safety pin bracket 142 with the safety pin 141 upward until the safety pin 141 is engaged in the safety pin hole 221. This restricts the movement of the pin 220 to prevent accidental disengagement during the hoisting process.

[0050] Referring to Figures 15-17, when the upper connector 100 and lower connector 200 need to be separated after hoisting, the safety device 140 returns to its pre-operation state. Simultaneously, the separation device 150 operates, specifically: the second hydraulic module 153 pushes the pressure ring 151 downward, at which point the second conical surface 156 on the pressure ring 151 acts on the third conical surface 122 on the pin 220, causing the pin 220 to move outward until it is initially pushed out of the pin hole 122; then, the hoisting rope drives the upper connector 100 upward through the hoisting ring 110, at which point the pin hole 122 acts on the fourth conical surface 223 on the pin 220, causing it to completely exit the pin hole 122; the upper connector 100 continues to move upward, and at this point, the upper connector 100 and the lower connector 200 are disengaged.

[0051] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A hook-and-drop lifting device for an underwater guide frame, characterized in that: The device includes: an upper connector (100) connected to a crane, the upper connector (100) having a plurality of evenly distributed pin holes (122) on its tubular housing (120); a lower connector (200) connected to an underwater guide frame and inserted into the upper connector (100), the lower connector (200) having a pin (220) pushed by an elastic element, the pin (220) being inserted into the pin hole (122); a positioning device including a guide block (121) on the tubular housing (120), the lower connector (200) having a spiral groove (210) on its inner wall, the guide block (121) sliding on the spiral groove (210); and a pin (220) inserted into the lower connector (200) at one end. The upper connector (100) is provided with a third conical surface (222) facing upwards and a fourth conical surface (223) facing downwards; an end cap (130) is installed at the bottom of the upper connector (100), and a first conical surface (131) is provided at the bottom of the end cap (130), which slides with the third conical surface (222); a separation device (150) is installed in the tubular housing (120), and the pressure ring (151) of the separation device (150) is connected to the support plate (155) through the second hydraulic module (153). The support plate (155) is connected to the end cap (130) through the support (134) passing through the pressure ring (151). The bottom surface of the pressure ring (151) is a second conical surface that slides with the third conical surface (222); a pin tube (230) is inserted into the lower connector (200). The pin (220) is slidably disposed in the pin tube (230). A pin tube cap (232) is provided on the end of the pin tube (230) located outside the lower connector (200). The spring (231) is located inside the pin tube (230) and between the pin tube cap (232) and the pin (220). The pin (220) is inserted into the pin hole (122) under the push of the spring (231). During hoisting, the upper connector (100) is turned down at any circumferential angle above the lower connector (200). The first conical surface (131) on the end cap (130) acts on the third conical surface (222) on the pin (220), causing the pin (220) to move outward. Move, and then the upper connector (100) continues to fall; when the upper connector (100) falls to a certain position, the guide block (121) contacts the spiral groove surface (210) and begins to slide along it, while driving the upper connector (100) to spiral down; when the end cap (130) contacts the inner conical surface (240) at the bottom of the lower connector (200), the upper connector (100) stops falling, at this time the pin hole (122) is coaxial with the pin (220), and the pin (220) is inserted into the pin hole (122) under the action of the spring (231) to complete the hook; when the upper connector (100) and the lower connector (200) need to be separated after the hoisting is completed, the safety device (140) in the tubular shell (120) returns to the state before operation;Simultaneously, the separation device (150) operates, specifically as follows: the second hydraulic module (153) pushes the pressure ring (151) downward, at which time the second conical surface (156) on the pressure ring (151) acts on the third conical surface (222) on the pin (220), causing the pin (220) to move outward until it is initially pushed out of the pin hole (122); then, the lifting rope drives the upper connector (100) upward through the lifting ring (110), at which time the pin hole (122) acts on the fourth conical surface (223) on the pin (220), causing it to completely exit the pin hole (122); the upper connector (100) continues to move upward, and at this point, the upper connector (100) and the lower connector (200) are disengaged.

2. The underwater guide frame detachment lifting device according to claim 1, characterized in that: The inner wall of the pin tube (230) is provided with a slider (233), and the pin (220) is provided with a groove (224). The slider (233) is slidably disposed in the groove (224).

3. The underwater guide frame detachment lifting device according to claim 1, characterized in that: The pin (220) is provided with a safety pin hole (221); the safety device (140) is installed in the tubular housing (120), and the safety pin bracket (142) of the safety device (140) is connected to the connecting plate (133) through the first hydraulic module (143). The safety pin bracket (142) is provided with a safety pin (141) vertically, and the first hydraulic module (143) pushes the safety pin (141) to insert into the safety pin hole (221).

4. The underwater guide frame detachment lifting device according to claim 1, characterized in that: The spiral groove surface (210) is tangent to the inner surface of the pin hole (122).

Images