A semi-submersible ship cargo support pier quick heightening device

Abstract

The application belongs to the technical field of ship equipment, and particularly relates to a semi-submersible ship cargo support pier quick heightening device, which comprises a base, a quick locking assembly and a quick unlocking assembly. The application designs a multiple positioning and locking structure including a positioning column, a first telescopic groove, a second telescopic groove, a locking rod, a convex seat and a tooth engagement. When the support height needs to be increased, the second telescopic groove at the bottom of the new pier can be precisely pre-connected with the positioning column at the top of the lower installed pier and the first ball, and the upper and lower layers are positioned automatically without additional calibration. After the compression telescopic rod presses the top plate, the multiple-layer linkage locking of the new pier, the upper top plate, the lower pier and the bottom locking rod can be completed synchronously, the overall structural stability after the multiple-layer superposition is ensured, the pier displacement can be effectively limited from all directions, even in complex working conditions such as ship swinging and uneven cargo stress, the pier loosening or deviation can be avoided, and thus the safety and reliability of the cargo support are ensured.

Description

Technical Field

[0001] This invention belongs to the field of marine equipment technology, and in particular relates to a device for rapidly raising cargo support blocks for semi-submersible vessels. Background Technology

[0002] As a special transport vessel, the core function of a semi-submersible vessel is to load and unload oversized cargo by submerging its deck in the water. Cargo support piers, as key force transmission components between the semi-submersible vessel's deck and cargo, play two crucial roles: first, they bear the cargo load through their own structural strength and evenly transfer the load to the semi-submersible vessel's deck, preventing localized deck overload; second, through the fixed cooperation between the piers and the cargo and deck, they limit the longitudinal and lateral displacement of the cargo during transportation, preventing cargo shifting or damage due to ship swaying or wave impact. They are a core component for ensuring the safety of cargo transportation.

[0003] However, in practical applications, this type of multi-layered assembled static timber stump has the following significant technical defects:

[0004] 1. The current method of assembling timber blocks relies entirely on manual labor for positioning, handling, and fixing: On the one hand, the alignment accuracy requirements for multi-layer timber blocks are extremely stringent, and the error must be controlled within a very small range. Otherwise, it is easy to cause uneven distribution of cargo load. Operators need to repeatedly adjust the position of single-layer timber blocks and use a level for calibration. The assembly process of a single set of support points takes a long time. On the other hand, the single-layer timber block module itself is heavy, requiring multiple operators to work together to complete the handling. In addition, fixing processes such as welding and bolt tightening require the use of professional equipment such as welding guns and torque wrenches. This not only places high demands on the skill level of the operators but also consumes a lot of physical strength, leading to a rapid increase in operator fatigue and further reducing overall work efficiency.

[0005] 2. When it is necessary to unload cargo or replace the blocks of different heights, the unlocking process of the existing blocks needs to be reversed to perform the steps of "fixing release, layer-by-layer disassembly and module handling": For blocks fixed by welding, operators need to use oxygen cutting equipment to cut the weld. The high temperature generated during the cutting process can easily damage the deck coating, and the block modules after cutting cannot be reused because of the weld residue on the surface. For blocks fixed by bolts, hydraulic wrenches need to be used to remove the bolts one by one according to the preset torque. If the bolts are corroded due to long-term contact with seawater or stripped or jammed due to ship vibration, additional drilling and demolition methods are required, which further prolongs the unlocking time. Summary of the Invention

[0006] In view of this, the present invention aims to solve two major problems of existing multi-layer modular static piers for semi-submersible vessels: First, the entire assembly process relies on manual labor, requires repeated calibration and positioning, and is time-consuming. The handling and fixing require the cooperation of multiple people and professional equipment, which has high requirements for skills and physical strength and is inefficient. Second, the unlocking process is cumbersome, welding and fixing require cutting vulnerable parts and cannot be reused, and bolt fixing is prone to corrosion and jamming, which prolongs the time consumption.

[0007] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0008] This invention discloses a device for quickly raising cargo support blocks of a semi-submersible vessel, comprising a base, a quick-locking component, and a quick-unlocking component;

[0009] The base is equipped with symmetrically arranged compression telescopic rods, and a top plate is installed on the top of the compression telescopic rods. A wooden block is set between the base and the top plate. The top of the base and the wooden block is trapezoidal. The bottom of the top plate and the wooden block is provided with a trapezoidal groove that matches the trapezoidal structure. A baffle for limiting the wooden block is installed on one side of the top plate.

[0010] A quick-locking assembly is disposed inside the base and is used to automatically lock the wooden block after it passes through the upper limit of the base;

[0011] A quick-unlock component, which is disposed on one side of the base, is used to quickly unlock the wooden stump.

[0012] Furthermore, the quick-locking assembly includes:

[0013] Two positioning posts are provided, and they are symmetrically installed on the wooden blocks;

[0014] The first ball is rolled and connected to the top of the positioning post. The top plate has a first expansion groove corresponding to the first ball and the positioning post. The wooden block has a second expansion groove corresponding to the first ball and the positioning post.

[0015] An inclined top seat is installed on the right side of the wooden block, and the left side of the top plate is provided with an inclined groove that matches the inclined surface of the inclined top seat;

[0016] The passive plate is located on the right side of the base and is adapted to the inclined surface of the sloping top seat;

[0017] The slide rail base is connected to the inside of the base through a slide rail, and its right end extends out to the right side of the base;

[0018] The locking rods are arranged in a linear array and slidably connected to the top of the base.

[0019] The first limiting rod is installed inside the base and corresponds to the locking rod. The locking rod has a vertical groove inside, and one end of the first limiting rod passes through the vertical groove.

[0020] An oblique hole is formed inside the slide rail seat and corresponds to the locking rod;

[0021] An inclined plate is installed at the bottom of the locking bar, and the inclined surface of the inclined plate is in close contact with the inclined surface of the inclined hole;

[0022] A compression spring is installed inside the base cavity, and one end of it is fixedly connected to the left side wall of the baffle.

[0023] Furthermore, the dimensions of the positioning post and the first ball located on the left are smaller than those of the positioning post and the first ball located on the right.

[0024] Furthermore, the top of the wooden stump is equipped with protruding seats arranged in a linear array. The longitudinal section of the protruding seats is U-shaped, and the horizontal end of the U-shaped structure is inclined inward. The protruding seats are equipped with toothed components, which are V-shaped. The bottom of the top plate is provided with toothed grooves corresponding to the protruding seats and toothed components. The toothed grooves are adapted to the protruding seats and toothed components.

[0025] Furthermore, the height of the first ball on the inclined top seat is greater than the height of the protruding seat.

[0026] Furthermore, the quick unlock components include:

[0027] An unlocking seat is fixedly installed on the right side of the slide rail seat, and a sliding groove is provided on the top of the unlocking seat;

[0028] The unlocking plate is slidably connected inside the sliding groove;

[0029] There are two spring rods, which are symmetrically installed inside the sliding groove. The unlocking plate is slidably connected to the top of the spring rod.

[0030] The fixing block has a rectangular structure with a perforated center.

[0031] The second spring rod is slidably connected inside the fixed block, and the passive plate is installed on the left side of the second spring rod;

[0032] The unlocking lever is installed on the left side of the unlocking plate, and the unlocking lever and the second spring lever are on the same horizontal plane;

[0033] The second limiting rod is installed at the top center of the second spring rod. An opening is provided in the middle of the fixing block, and the second limiting rod is slidably connected within the opening.

[0034] Furthermore, a horizontal stop is installed on the top of the unlocking plate, and symmetrically arranged blocking blocks are installed in the sliding groove to limit the vertical sliding stroke of the unlocking plate.

[0035] Furthermore, the stroke of the opening inside the fixing block is greater than the distance by which the second spring rod extends outward on the right side of the fixing block.

[0036] Furthermore, a second ball bearing is mounted on the top of the locking rod in a rolling connection manner. In the initial state, when the locking rod is located inside the base, the protruding part of the second ball bearing will be exposed on the top surface of the base.

[0037] Furthermore, a first magnet is installed on the right side wall of the inclined hole, and a second magnet that attracts the first magnet is installed on the side of the inclined plate closest to the first magnet.

[0038] Compared with existing technologies, the semi-submersible vessel cargo support block rapid raising device described in this invention has the following advantages:

[0039] 1. This invention achieves rapid positioning, insertion, and automatic locking of wooden blocks by incorporating a quick-locking component, a flexible telescopic compression rod, and a trapezoidal structure with a trapezoidal groove. Specifically, a single operator can push the wooden block, utilizing the first and second ball bearings to transform sliding into rolling friction, and automatically reserving space with the inclined top seat and inclined groove. This eliminates the need for multiple personnel to handle the block and for repeated calibration with a level. The invention also features a multi-layered positioning and locking structure including a positioning post, a first telescopic groove, a second telescopic groove, a locking rod, a protruding seat and toothed engagement, and a baffle. When increasing the support height, the No. 2 expansion groove at the bottom of the new wooden block can achieve precise pre-interlocking with the positioning column and first ball bearing at the top of the already installed wooden block below, automatically completing the upper and lower layer positioning without additional calibration. After the compression telescopic rod presses down on the top plate, it can simultaneously complete the multi-layer linkage locking of the new wooden block with the upper top plate, the lower wooden block, and the bottom locking rod. This design ensures the overall structural stability after multi-layer stacking and can effectively limit the displacement of the wooden block from all directions. Even under complex working conditions such as ship swaying and uneven cargo stress, it can prevent the wooden block from loosening or shifting, thereby ensuring the safety and reliability of cargo support.

[0040] 2. This invention enables one-click unlocking and automatic pop-out of the wooden block through a quick-unlocking component. This design transforms the cumbersome process of traditional manual handling, precision calibration, and disassembly using special tools into an efficient and labor-saving mechanized operation. The installation time per session is greatly shortened, significantly improving the overall operational efficiency of cargo loading and unloading on semi-submersible vessels, and effectively reducing the labor intensity and skill requirements of operators.

[0041] 3. This invention allows for flexible replacement of wooden blocks of different specifications according to the weight and height requirements of the goods, without the need to replace the entire device. It is highly versatile. The device uses a first magnet and a second magnet to attract each other, ensuring a rapid unlocking response. At the same time, the unlocking process does not require destructive operation. Both the wooden blocks and the main body of the device can be reused intact. This overcomes the problems of disassembly difficulties and component damage caused by welding or bolt corrosion in the prior art, and reduces maintenance costs and life cycle costs. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 This is a longitudinal cross-sectional view of the overall structure of the present invention;

[0044] Figure 3 This is a partial schematic diagram of the wooden stump of the present invention;

[0045] Figure 4 This is a longitudinal cross-sectional view of the base of the present invention;

[0046] Figure 5 This is a schematic diagram of the initial stage of inserting the wooden stump into the base according to the present invention;

[0047] Figure 6 This is a schematic diagram of the base of the present invention;

[0048] Figure 7 yes Figure 6 A magnified view of part A in the image;

[0049] Figure 8 This is a longitudinal cross-sectional view of the unlocking seat of the present invention.

[0050] The markings in the diagram represent: 1. Base; 12. Compression telescopic rod; 13. Top plate; 14. Wooden stump; 15. Baffle; 2. Quick locking assembly; 21. Positioning post; 22. First ball bearing; 23. Slanted top seat; 24. Passive plate; 25. Slide rail seat; 26. Locking rod; 27. First limit rod; 28. Slanted hole; 29. ​​Slanted plate; 201. Protruding seat; 202. Gear; 291. Compression spring; 292. Second ball bearing; 293. First magnet; 294. Second magnet; 211. Quick unlocking assembly; 212. Unlocking seat; 213. Unlocking plate; 214. First spring rod; 215. Fixing block; 216. Second spring rod; 217. Unlocking rod; 218. Second limit rod; 219. Stop seat; 2191. Blocking block. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0052] See Figures 1-5 As shown, this invention provides a rapid heightening device for cargo support blocks on a semi-submersible vessel, including a base 1, a quick-locking assembly 2, and a quick-unlocking assembly 211. The base 1 needs to be welded to the deck. Symmetrically arranged compression telescopic rods 12 are installed on the base 1. The compression telescopic rods 12 can flexibly extend and retract to adjust the height of the top plate 13, and together with different wooden blocks 14, achieve rapid adjustment of the support height to meet the support height requirements of different cargoes. The top plate 13 is installed on the top of the compression telescopic rods 12. Wooden blocks 14 are arranged between the base 1 and the top plate 13. The tops of the base 1 and the wooden blocks 14 are trapezoidal structures. The bottom of the pier 14 has a trapezoidal groove adapted to the trapezoidal structure. Through the trapezoidal structure of the base 1 and the top of the pier 14, combined with the matching trapezoidal groove of the top plate 13 and the bottom of the pier 14, precise positioning and fit are achieved, preventing horizontal displacement of the pier 14 during support. This eliminates the need for repeated manual adjustments using a level. A baffle 15 is installed on one side of the top plate 13 to limit the movement of the pier 14, providing lateral restraint and further enhancing the stability of the pier 14 after placement, preventing it from shifting under ship swaying or other conditions. A quick-locking component 2 is located inside the base 1. The wooden block 14 automatically locks after passing through the upper limit of the base 1; the quick-locking assembly 2 includes two positioning posts 21, which are symmetrically installed on the wooden block 14; the first ball bearing 22 is rotatably connected to the top of the positioning post 21, and the top plate 13 has a first telescopic groove corresponding to the first ball bearing 22 and the positioning post 21, and the wooden block 14 has a second telescopic groove corresponding to the first ball bearing 22 and the positioning post 21; the inclined top seat 23 is installed on the right side of the wooden block 14, and the left side of the top plate 13 has an inclined groove that matches the inclined surface of the inclined top seat 23; the passive plate 24 is located on the right side of the base 1 and matches the inclined surface of the inclined top seat 23; the slide rail seat 2 5 is connected to the inside of the base 1 via a slide rail, with its right end extending out to the right side of the base 1; the locking rods 26 are arranged in a linear array and slidably connected to the top of the base 1; the first limiting rod 27 is installed inside the base 1 and corresponds to the locking rod 26, with a vertical groove inside the locking rod 26, and one end of the first limiting rod 27 passes through the vertical groove; the inclined hole 28 is opened inside the slide rail seat 25 and corresponds to the locking rod 26; the inclined plate 29 is installed at the bottom of the locking rod 26, and the inclined surface of the inclined plate 29 is close to the inclined surface of the inclined hole 28; the compression spring 291 is installed in the inner cavity of the base 1, and one end of it is fixedly connected to the left side wall of the baffle 15.

[0053] It should be noted that, firstly, the operator selects the appropriate wooden block 14 according to the weight of the goods, aligns the inclined top seat 23 on the right side of the wooden block 14 with the inclined groove on the left side of the top plate 13, and inserts it. The inclined surface of the inclined top seat 23 fits against the inclined surface of the inclined groove of the top plate 13. The squeezing force during insertion will lift the top plate 13 upward, reserving space for the insertion of the wooden block 14. There is no need to manually pry open the reserved installation space, further reducing physical exertion and worker fatigue. At the same time, the first ball bearing 22 at the top of the positioning post 21 on the wooden block 14 and... The bottom surface of the top plate 13 contacts the top plate, converting sliding friction into rolling friction, which greatly reduces the resistance to pushing the wooden block 14. A single person can move the wooden block 14 without the need for multiple operators to work together. The wooden block 14 is pushed to slide between the base 1 and the top plate 13 until the wooden block 14 is blocked by the baffle 15 on one side of the top plate 13, completing the lateral limit. At this time, the positioning post 21 and the first ball bearing 22 on the wooden block 14 are precisely aligned with the first telescopic groove at the bottom of the top plate 13, preparing for subsequent locking.

[0054] Then, the compression telescopic rod 12 retracts, causing the top plate 13 to press down on the wooden block 14. When the top plate 13 presses down, the first telescopic groove fits into the positioning post 21 and the first ball bearing 22, realizing the vertical positioning of the wooden block 14 and the top plate 13. At the same time, the inclined top seat 23 of the wooden block 14 presses the passive plate 24 to the right. The passive plate 24 pushes the slide rail seat 25 to slide to the right along the internal slide rail of the base 1. When the slide rail seat 25 moves to the right, the inclined surface of its internal inclined hole 28 and the inclined surface of the bottom inclined plate 29 of the locking rod 26 slide relative to each other. The inclined force is converted into a lateral thrust, pushing the locking rod 26 to slide along the top of the base 1. The first limiting rod 27 restricts the movement direction of the locking rod 26 through the vertical groove of the locking rod 26, ensuring that the locking rod 26 extends accurately and finally locks the bottom of the wooden block 14, completing the automatic locking.

[0055] When the height of the wooden block 14 needs to be increased, before the new wooden block 14 is installed, the second expansion groove at its bottom will precisely align with the positioning column 21 and the first ball bearing 22 at the top of the wooden block 14 that has already been installed below, so as to achieve the pre-positioning of the upper and lower wooden blocks 14. At the same time, wooden blocks 14 of different heights can be selected for installation at one time before installation, which further improves the installation efficiency.

[0056] The subsequent installation steps for the single wooden block 14 are followed. The compression telescopic rod 12 drives the top plate 13 to press down. The positioning post 21 of the new wooden block 14 is aligned with the first telescopic groove of the top plate 13 above, and locked with the second telescopic groove of the old wooden block 14 below, forming a multi-layered and stable structure.

[0057] This invention eliminates the need for manual locking. The wooden blocks 14 are automatically locked in place through mechanical linkage, significantly reducing the installation time of a single wooden block 14. When multiple blocks are stacked, the upper and lower wooden blocks 14 are quickly and pre-connected to the No. 2 telescopic groove via positioning columns 21, eliminating the need for additional calibration. This invention is well-suited to the high-efficiency operation requirements of semi-submersible vessel cargo loading and unloading. Different specifications of wooden blocks 14 can be flexibly replaced or multiple layers of wooden blocks 14 can be stacked according to the weight and height requirements of the cargo, without the need to replace the entire device.

[0058] Moreover, through the multiple locking structures of positioning post 21, locking rod 26, baffle 15, first telescopic groove and second telescopic groove, the displacement of wooden block 14 is restricted from all directions. Even under the working conditions of ship swaying and uneven cargo stress, the wooden block 14 can be prevented from loosening or shifting, thus ensuring the safety of cargo support.

[0059] See Figure 5 As shown, the dimensions of the positioning post 21 and the first ball 22 located on the left are smaller than those of the positioning post 21 and the first ball 22 located on the right.

[0060] It should be noted that in the quick-locking assembly 2, the two positioning posts 21 and the matching first ball bearings 22 symmetrically installed on the wooden block 14 are set with different sizes, that is, the overall size of the left positioning post 21 and the first ball bearing 22 is smaller than that of the right positioning post 21 and the first ball bearing 22; the corresponding first telescopic groove on the top plate 13 is adapted to the size of the positioning post 21 and the first ball bearing 22 on the corresponding side (the size of the first telescopic groove on the left side is smaller than that on the right side). Specifically, when the operator inserts the wooden block 14 between the base 1 and the top plate 13, the positioning post 21 and the first ball bearing 22 on the right side of the wooden block 14, which are larger in size, first contact the entrance of the first telescopic groove on the left side of the top plate 13. The larger one, and the smaller one on the left, with the smaller positioning post 21 and the first ball bearing 22, means that the first ball bearing 22 on the right is only partially engaged with the entrance of the first telescopic groove on the right. The top plate 13 will not press down on the wooden block 14 in advance, always leaving enough room for the insertion of the wooden block 14. The operator can smoothly push the wooden block 14 along the base 1 until the wooden block 14 is limited by the baffle 15. At this time, the larger positioning post 21 and the first ball bearing 22 on the right are fully engaged in the first telescopic groove on the right, and the positioning post 21 and the first ball bearing 22 on the left also enter the first telescopic groove on the left at the same time, completing the precise positioning of the wooden block 14. When the compression telescopic rod 12 retracts and drives the top plate 13 to press down, the positioning posts 21 and the first ball bearing 22 on both sides can precisely fit with the first telescopic groove to achieve a stable engagement.

[0061] See Figure 3As shown, the top of the wooden block 14 is equipped with protruding seats 201 arranged in a linear array. The longitudinal section of the protruding seat 201 is U-shaped, and the horizontal end of the U-shaped structure is inclined inward. The protruding seat 201 is equipped with a toothed member 202, which is V-shaped and made of metal. The bottom of the top plate 13 is provided with a toothed groove corresponding to the protruding seat 201 and the toothed member 202. The toothed groove is adapted to the protruding seat 201 and the toothed member 202.

[0062] It should be noted that when the top plate 13 moves downwards towards the wooden block 14, the toothed groove at the bottom of the top plate 13 first contacts the protrusion 201 at the top of the wooden block 14. The inwardly inclined horizontal end of the U-shaped structure of the protrusion 201 can guide the toothed groove to slide along the inclined surface, automatically correcting the slight alignment deviation between the top plate 13 and the wooden block 14, and achieving self-guided initial fitting. As the compression telescopic rod 12 continues to contract, the top plate 13 is further pressed down, and the toothed groove is completely fitted onto the outside of the protrusion 201. At the same time, the inner wall of the toothed groove and the V-shaped tooth 202 inside the protrusion 201 form a tight engagement. On the one hand, the inclined horizontal end of the U-shaped structure and the inclined inner wall of the toothed groove squeeze each other, generating a lateral preload, which restricts the horizontal relative displacement between the wooden block 14 and the top plate 13. On the other hand, the toothed surfaces on both sides of the V-shaped tooth 202 engage with the corresponding toothed surfaces of the toothed groove, dispersing and transferring the cargo load borne by the top plate 13 to the wooden block 14 through toothed surface contact, avoiding local stress concentration.

[0063] The above structure, together with the previous positioning post 21 and the first ball bearing 22, forms a dual positioning and locking synergy. The positioning post 21 and the first telescopic groove solve the problem of precise alignment, while the protruding seat 201 and the toothed piece 202 strengthen the connection through physical interlocking. The combination of the two upgrades the connection between the wooden block 14 and the top plate 13 from point positioning to surface interlocking, further improving the overall stability.

[0064] It is worth noting that a waterproof pad is installed around the edge of the top plate 13 corresponding to the wooden block 14. The waterproof pad forms an annular sealing barrier by adhering to the bottom edge of the top plate 13 and the top edge of the wooden block 14, directly blocking moisture from entering along the edge gap, preventing corrosion of the metal contact surface between the V-shaped tooth 202 and the tooth groove, and thus preventing damage to the meshing accuracy.

[0065] See Figure 3 As shown, the height of the first ball bearing 22 on the inclined top seat 23 is greater than the height of the protruding seat 201.

[0066] When the operator inserts the wooden block 14 between the base 1 and the top plate 13, the first ball bearing 22, being the tallest, will first contact the bottom surface of the top plate 13. At this time, the first ball bearing 22 converts the sliding friction between the wooden block 14 and the top plate 13 into rolling friction, providing smooth support for the sliding of the wooden block 14. Since the height of the first ball bearing 22 is greater than the height of the protruding seat 201, after the wooden block 14 is lifted by the first ball bearing 22, there will be a gap between the top of the protruding seat 201 and the bottom surface of the top plate 13. In this state, no matter how far the wooden block 14 slides in the horizontal direction, the protruding seat 201 will not contact the bottom surface of the top plate 13, completely avoiding friction between the two and preventing wear on the top of the protruding seat 201 or the bottom surface of the top plate 13, which would damage the fitting accuracy between the toothed groove and the protruding seat 201.

[0067] See Figure 4 As shown, the top of the locking lever 26 is fitted with a second ball bearing 292 in a rolling connection manner. In the initial state, when the locking lever 26 is located inside the base 1, the protruding part of the second ball bearing 292 will be exposed on the top surface of the base 1.

[0068] It should be noted that, in the initial state, when the locking rod 26 is located inside the base 1, the protruding part of the second ball bearing 292 is exposed on the top surface of the base 1. This design can convert the sliding friction between the bottom of the wooden block 14 and the top surface of the base 1 into rolling friction when the wooden block 14 is inserted between the base 1 and the top plate 13. During the sliding process of the wooden block 14, the bottom directly contacts the second ball bearing 292. The rolling of the ball bearing greatly reduces the frictional resistance, avoids wear on the bottom of the wooden block 14 or the top surface of the base 1 due to sliding friction, and reduces the force required for the operator to push the wooden block 14. A single person can easily complete the insertion operation of the wooden block 14, improving the installation efficiency.

[0069] See Figure 4 As shown, a first magnet 293 is installed on the right side wall of the inclined hole 28, and a second magnet 294 that attracts the first magnet 293 is installed on the side of the inclined plate 29 near the first magnet 293.

[0070] It should be noted that the slide rail 25 moves to the left under the elastic force of the compression spring 291, which simultaneously drives the inclined hole 28 to move to the left. Since the first magnet 293 on the right side wall of the inclined hole 28 and the second magnet 294 on the inclined plate 29 attract each other, when the inclined hole 28 moves to the left, the first magnet 293 will actively pull the second magnet 294 through magnetic attraction, thereby driving the inclined plate 29 and the locking rod 26 fixed thereto to move downwards simultaneously. This active traction can quickly drive the locking rod 26 to retract into the base 1, avoiding the delay in the retraction of the locking rod 26 caused by the frictional resistance of the inclined surface in the traditional pure mechanical linkage, greatly improving the response speed of the unlocking action, ensuring that the wooden block 14 can be released from the locked state in time, and at the same time avoiding the wooden block 14 from popping out and getting stuck or unable to be removed due to incomplete unlocking, thus ensuring the reliability of the unlocking process.

[0071] See Figures 6-8 As shown, the quick unlocking component 211 is located on one side of the base 1 and is used to quickly unlock the wooden block 14. The quick unlocking component 211 includes an unlocking seat 212, which is fixedly installed on the right side of the slide rail seat 25. The top of the unlocking seat 212 has a sliding groove. The unlocking plate 213 is slidably connected inside the sliding groove. There are two first spring rods 214, which are symmetrically installed inside the sliding groove. The unlocking plate 213 is slidably connected to the top of the first spring rod 214. The fixing block 215 has a rectangular structure and a perforated middle section. The second spring rod 216 is slidably connected inside the fixing block 215. The passive plate 24 is installed on the left side of the second spring rod 216. The unlocking rod 217 is installed on the left side of the unlocking plate 213, and the unlocking rod 217 and the second spring rod 216 are on the same horizontal plane. The second limiting rod 218 is installed at the top middle of the second spring rod 216. The middle of the fixing block 215 has an opening, and the second limiting rod 218 is slidably connected inside the opening.

[0072] It should be noted that in the initial stage, the wooden block 14 has been locked by the quick locking assembly 2. Under the action of the compression telescopic rod 12, the top plate 13 continuously presses down on the wooden block 14. The positioning column 21 and the first ball 22 are inserted into the first telescopic groove of the top plate 13 to achieve vertical positioning. The second spring rod 216 is in a pre-compressed state. When the wooden block 14 is installed, the inclined top seat 23 connected to it squeezes the passive plate 24 and pushes the second spring rod 216 to slide to the right along the hole of the fixed block 215. The second limit rod 218 moves to the right synchronously along the opening of the fixed block 215 until the second spring rod 216 is compressed and stored.

[0073] When the wooden block 14 needs to be unlocked, the operator presses down the unlocking plate 213. The unlocking plate 213 moves vertically downward along the sliding groove at the top of the unlocking seat 212, simultaneously compressing the first spring rods 214 on both sides. The unlocking plate 213 drives the unlocking rod 217 on the left side to move downward simultaneously. Finally, the unlocking rod 217 and the second spring rod 216 are separated from the same horizontal plane. At this time, the rods inside the unlocking rod 217 and the second spring rod 216 are in a staggered state, releasing the horizontal obstruction to the unlocking rod 217. At this time, the second spring rod 216 remains stationary, and its pre-compressed elastic force is temporarily constrained by the pressure of the wooden block 14 (the positioning post 21 and the first ball bearing 22 on the wooden block 14 are in the first extension and retraction position of the top plate 13). (Internal engagement in the slot), after the unlocking rod 217 releases the obstruction, the compression spring 291 pre-compressed in the inner cavity of the base 1 releases its elastic force, pushing the slide rail seat 25 to slide quickly to the left along the internal slide rail of the base 1. When the slide rail seat 25 moves to the left, the inclined surface of its internal inclined hole 28 slides relative to the inclined surface of the bottom inclined plate 29 of the locking rod 26. At the same time, the first magnet 293 on the right side of the inclined hole 28 and the second magnet 294 on the inclined plate 29 attract each other, actively pulling the locking rod 26 to retract into the base 1. Under the guidance of the first limit rod 27, the locking rod 26 retracts, and the second ball 292 at the top of the locking rod 26 also retracts into the base 1, releasing the clamping constraint on the bottom of the wooden block 14, and the locking state of the wooden block 14 is officially released.

[0074] The operator then lifts the top plate 13 upwards, separating it from the wooden block 14. The first telescopic groove on the top plate 13 completely disengages from the positioning post 21 and the first ball bearing 22 of the wooden block 14, releasing the vertical pressure constraint on the wooden block 14. The wooden block 14 is now in a ready-to-split state. The pre-compressed second spring rod 216 then releases its elastic force, rapidly rebounding to the left along the perforation of the fixing block 215. The second spring rod 216 pushes the passive plate 24 on the left to move to the left. The passive plate 24 then engages with the inclined surface of the inclined top seat 23 of the wooden block 14, transferring the elastic force to the wooden block 14. Under the continuous pressure of the passive plate 24, the wooden block 14 slides to the left along the trapezoidal structure at the top of the base 1 (the trapezoidal structure matches the trapezoidal groove at the bottom of the wooden block 14 to prevent displacement). The wooden block 14 slides and pops out a distance without manual prying, achieving the convenient effect of unlocking and popping out immediately. The operator can then directly remove the wooden block 14 or perform heightening or replacement operations.

[0075] After the wooden block 14 pops out, the operator releases the unlocking plate 213, and the first spring rod 214 releases its compressive potential energy, pushing the unlocking plate 213 to move upward along the sliding groove to reset. The unlocking rod 217 rises back to the same plane as the second spring rod 216, forming a horizontal block again. When installing the new wooden block 14, the right side of the new wooden block 14 presses against the passive plate 24, pushing the second spring rod 216 to the right, the slide rail seat 25 to the right, and compressing the compression spring 291. The assembly returns to the initial locked and ready state.

[0076] See Figures 7-8As shown, a horizontal stop 219 is installed on the top of the unlocking plate 213, and symmetrically arranged blocking blocks 2191 are installed in the sliding groove to limit the vertical sliding stroke of the unlocking plate 213.

[0077] It should be noted that the stop 219, in conjunction with the symmetrically arranged blocking blocks 2191, restricts the vertical sliding stroke of the unlocking plate 213. Specifically, on the one hand, by blocking the stop 219, the maximum downward movement distance of the unlocking plate 213 is controlled, ensuring that the first spring rod 214 is within a safe elastic deformation range and avoiding damage to the components; on the other hand, the stop 219 is precisely positioned on the same horizontal plane as the unlocking rod 217, and then, under the elastic force of the compression spring 291 and the second spring rod 216, a leftward squeezing force is continuously provided to the passive plate 24, helping the wooden block 14 to pop out more smoothly.

[0078] See Figure 7 As shown, the stroke of the opening inside the fixing block 215 is greater than the distance that the second spring rod 216 extends outward on the right side of the fixing block 215.

[0079] The above functions provide sufficient retraction space for the second spring rod 216. Specifically, during unlocking, after releasing the second spring rod 216, its rod can be completely retracted into the fixed block 215. At this time, when releasing the first spring rod 214, the unlocking rod 217 can be smoothly reset to the same horizontal plane as the second spring rod 216. When the new wooden block 14 is subsequently inserted, the new wooden block 14 drives the passive plate 24, which can push the second spring rod 216 out from the fixed block 215 and accurately contact the unlocking rod 217, preparing for the locking operation of the new wooden block 14 and ensuring a smooth and continuous unlocking, resetting, and relocking process.

[0080] Working principle: When using a semi-submersible cargo support block rapid heightening device, firstly, the operator selects a wooden block 14 of appropriate height according to the weight of the cargo, aligns the inclined top seat 23 on the right side of the wooden block 14 with the inclined groove on the left side of the top plate 13 and inserts it. The inclined surface of the inclined top seat 23 fits against the inclined surface of the inclined groove of the top plate 13. The squeezing force during insertion will automatically lift the top plate 13, leaving sufficient space for the insertion of the wooden block 14. At the same time, the first ball bearing 22 at the top of the positioning column 21 on the wooden block 14 first contacts the bottom surface of the top plate 13, converting sliding friction into rolling friction, greatly reducing the insertion resistance. A single person can push the wooden block 14 to slide along the trapezoidal structure at the top of the base 1 until the wooden block 14 is blocked by the baffle 15 on one side of the top plate 13, completing the lateral limit.

[0081] Subsequently, the compression telescopic rod 12 retracts, causing the top plate 13 to press down on the wooden block 14. The first telescopic groove at the bottom of the top plate 13 precisely fits into the positioning post 21 and the first ball bearing 22 of the wooden block 14, achieving vertical positioning.

[0082] During this process, the inclined top seat 23 of the wooden block 14 will press the passive plate 24 on the right side of the base 1 to the right. The passive plate 24 pushes the slide rail seat 25 to slide to the right along the slide rail inside the base 1. When the slide rail seat 25 moves to the right, the inclined surface of its internal inclined hole 28 and the inclined surface of the bottom inclined plate 29 of the locking rod 26 will slide relative to each other, converting the inclined force into a lateral thrust, driving the locking rod 26 to extend precisely along the guide of the first limit rod 27, and finally locking the bottom of the wooden block 14, completing the automatic locking of the wooden block 14.

[0083] When the support height needs to be increased, the following logic is used to achieve the stable stacking of multiple wooden blocks 14: the second expansion groove at the bottom of the new wooden block 14 is precisely aligned with the positioning column 21 and the first ball bearing 22 at the top of the already installed wooden block 14 below, and the upper and lower wooden blocks 14 are automatically pre-positioned to avoid manual calibration. According to the single installation process, the compression telescopic rod 12 drives the top plate 13 to press down, the positioning column 21 at the top of the new wooden block 14 is aligned with the first expansion groove of the top plate 13 above, and the bottom is engaged with the second expansion groove of the old wooden block 14. At the same time, the locking rod 26 simultaneously clamps the bottom of the new wooden block 14.

[0084] When the wooden block 14 needs to be disassembled, one-click unlocking is achieved through the quick unlocking component 211: the operator presses the unlocking plate 213, compresses the first spring rod 214, the unlocking rod 217 moves down and disengages from the coplanar state with the second spring rod 216, releasing the horizontal obstruction, the compression spring 291 pre-compressed in the inner cavity of the base 1 releases its elastic force, pushing the slide rail seat 25 to the left, at the same time the second spring rod 216 elastically resets and drives the passive plate 24 to the left, the passive plate 24 moves to the left and squeezes the right side of the wooden block 14, the operator lifts the top plate 13, after the wooden block 14 is released from the downward pressure constraint, the wooden block 14 automatically pops out under the squeezing force of the passive plate 24 and the guide of the trapezoidal structure of the base 1;

[0085] After the wooden block 14 pops out, the unlocking plate 213 is released, the first spring rod 214 pushes the unlocking plate 213 upward, and the unlocking rod 217 returns to the same plane as the second spring rod 216;

[0086] When the new wooden block 14 is installed, the new wooden block 14 presses against the passive plate 24, pushes the second spring rod 216 to the right, the slide rail seat 25 to the right and compresses the compression spring 291, and the device returns to the locked standby state.

[0087] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A device for quickly raising cargo support blocks for semi-submersible vessels, comprising a base (1), a quick-locking assembly (2), and a quick-unlocking assembly (211), characterized in that... The base (1) is equipped with symmetrically arranged compression telescopic rods (12), and a top plate (13) is installed on the top of the compression telescopic rods (12). A wooden block (14) is provided between the base (1) and the top plate (13). The top of the base (1) and the wooden block (14) is trapezoidal. The bottom of the top plate (13) and the wooden block (14) is provided with a trapezoidal groove that matches the trapezoidal structure. A baffle (15) for limiting the wooden block (14) is installed on one side of the top plate (13). A quick-locking assembly (2) is disposed inside the base (1) and is used to automatically lock the wooden block (14) after it passes through the upper limit of the base (1). The quick-locking assembly (2) includes: Positioning posts (21) are provided in two quantities and are symmetrically installed on wooden blocks (14); The first ball (22) is tumblingly connected to the top of the positioning post (21). The top plate (13) has a first telescopic groove corresponding to the first ball (22) and the positioning post (21). The wooden block (14) has a second telescopic groove corresponding to the first ball (22) and the positioning post (21). An inclined top seat (23) is installed on the right side of the wooden block (14), and an inclined groove adapted to the inclined surface of the inclined top seat (23) is provided on the left side of the top plate (13); Passive plate (24) is located on the right side of base (1) and is adapted to the inclined surface of inclined top seat (23); The slide rail seat (25) is connected to the inside of the base (1) through the slide rail, and its right end extends out to the right side of the base (1); Locking rod (26) is arranged in a linear array and slidably connected to the top of the base (1); The first limiting rod (27) is installed inside the base (1) and corresponds to the locking rod (26). The locking rod (26) has a vertical groove inside, and one end of the first limiting rod (27) passes through the vertical groove. An oblique hole (28) is formed inside the slide rail seat (25) and corresponds to the locking rod (26); An inclined plate (29) is installed at the bottom of the locking bar (26), and the inclined surface of the inclined plate (29) is close to the inclined surface of the inclined hole (28); A compression spring (291) is installed in the inner cavity of the base (1), and one end of it is fixedly connected to the left side wall of the baffle (15): The top of the wooden block (14) is equipped with protruding seats (201) arranged in a linear array. The longitudinal section of the protruding seat (201) is U-shaped, and the horizontal end of the U-shaped structure is inclined inward. The protruding seat (201) is equipped with a toothed member (202). The toothed member (202) is V-shaped. The bottom of the top plate (13) is provided with a toothed groove corresponding to the protruding seat (201) and the toothed member (202). The toothed groove is adapted to the protruding seat (201) and the toothed member (202). The top of the locking bar (26) is fitted with a second ball (292) in a rolling connection manner. In the initial state, when the locking bar (26) is located inside the base (1), the protruding part of the second ball (292) will be exposed on the top surface of the base (1). Quick unlocking component (211), which is disposed on one side of the base (1), is used to quickly unlock the wooden block (14).

2. The device for rapidly raising cargo support blocks for semi-submersible vessels according to claim 1, characterized in that, The dimensions of the positioning post (21) and the first ball (22) located on the left are smaller than those of the positioning post (21) and the first ball (22) located on the right.

3. The device for rapidly raising cargo support blocks for semi-submersible vessels according to claim 1, characterized in that, The height of the first ball (22) on the inclined top seat (23) is greater than the height of the protruding seat (201).

4. The device for rapidly raising cargo support blocks for semi-submersible vessels according to claim 1, characterized in that, The quick unlock component (211) includes: The unlocking seat (212) is fixedly installed on the right side of the slide rail seat (25), and the top of the unlocking seat (212) is provided with a sliding groove; The unlocking plate (213) is slidably connected inside the sliding groove; There are two spring rods (214), which are symmetrically installed inside the sliding groove. The unlocking plate (213) is slidably connected to the top of the spring rod (214). The fixing block (215) has a rectangular structure and a perforated middle section; The second spring rod (216) is slidably connected inside the fixed block (215), and the passive plate (24) is installed on the left side of the second spring rod (216); The unlocking lever (217) is installed on the left side of the unlocking plate (213), and the unlocking lever (217) and the second spring lever (216) are on the same horizontal plane; The second limiting rod (218) is installed at the top middle of the second spring rod (216). The fixing block (215) has an opening in the middle, and the second limiting rod (218) is slidably connected in the opening.

5. A rapid heightening device for cargo support blocks on a semi-submersible vessel according to claim 4, characterized in that, The top of the unlocking plate (213) is equipped with a horizontal stop (219), and symmetrically arranged blocking blocks (2191) are installed in the sliding groove to limit the vertical sliding stroke of the unlocking plate (213).

6. A rapid heightening device for cargo support blocks on a semi-submersible vessel according to claim 4, characterized in that, The length of the stroke of the opening inside the fixing block (215) is greater than the distance by which the second spring rod (216) extends outward on the right side of the fixing block (215).

7. A rapid heightening device for cargo support blocks on a semi-submersible vessel according to claim 1, characterized in that, A first magnet (293) is installed on the right side wall of the inclined hole (28), and a second magnet (294) that attracts the first magnet (293) is installed on the side of the inclined plate (29) near the first magnet (293).

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