Underwater multistage load rejection device

Abstract

The invention discloses an underwater multi-stage load rejection device, relates to the technical field of underwater systems or equipment, and solves the problems that an existing load rejection device is low in reliability and stability, single load rejection cannot meet task requirements, and a multi-stage load rejection release mechanism occupies a large space. The multiple stages of load rejection sections are sequentially from the Nth stage to the first stage from inside to outside and / or from top to bottom, and are assembled below the load rejection release mechanism in sequence; the load rejection releasing mechanism is composed of a load rejection fixing frame, a driving motor, a crank sliding block structure and plug pin rods, the driving motor is installed on the load rejection fixing frame, the Nth-stage load rejection section to the first-stage load rejection section are sequentially hung on the plug pin rods from inside to outside through the corresponding stages of hanging lugs, the two plug pin rods are driven by the driving motor to synchronously pull to slide, and the load rejection section and the first-stage load rejection section are sequentially hung on the plug pin rods from inside to outside. The equipment can realize a multi-stage operation mode of firstly suspending and then floating, and is small in occupied space and high in reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater systems or equipment, and in particular to an underwater multi-stage dumping device. Background Art

[0002] As society continues to develop, resources on land are constantly being consumed, and some non-renewable resources are in urgent need of replenishment. People have turned their attention to the ocean. As an important means of understanding and developing the ocean, underwater systems or equipment have received widespread attention. Underwater systems can complete different actions such as diving, suspension, observation, operation, and floating recovery. The jettisoning device carried by the underwater system can adjust the overall buoyancy of the unmanned system by jettisoning heavy objects. It is an important means for the underwater system to achieve diving, suspension, and floating recovery.

[0003] At present, common dumping methods mainly rely on electromagnetic control technology. The electromagnetic adsorption force is used to fix the dumping weight, and when the electromagnetic adsorption force disappears, the dumping weight is released. The disadvantage of this technology is that when a gap appears in the connection part, the adsorption force will drop significantly, resulting in poor stability and reliability of the dumping device. In addition, there is also a fuse dumping method. This method is to generate a large current instantly to melt the fuse when the dumping conditions are met, thereby achieving structural separation and dumping. This method has high requirements for the heat generated by the current. During the system dive, if there is debris attached to the surface of the fuse, it may affect the generation of current, resulting in insufficient heat to melt the fuse. In addition, due to the space limitations of the underwater system, the existing dumping methods are mostly single-time dumping, which cannot meet the task requirements of first suspending work and then floating up for recovery, and gradually adjusting their own weight and buoyancy in multiple stages. Summary of the invention

[0004] In view of the above-mentioned problems that the current jettisoning device has low reliability and stability, a single jettisoning cannot meet the mission requirements, and the multi-stage jettisoning release mechanism occupies a large space, the purpose of the present invention is to provide an underwater multi-stage jettisoning device.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An underwater multi-stage jettisoning device comprises: a jettisoning release mechanism and a multi-stage jettisoning section, wherein the multi-stage jettisoning section is coaxially arranged and assembled below the jettisoning release mechanism in sequence from inside to outside and / or from top to bottom; the total number of the multi-stage jettisoning sections is represented by N, N is an integer not less than 2, the jettisoning section located at the outermost and / or lowermost side is the first-stage jettisoning section, the jettisoning section located at the innermost and / or uppermost side is the Nth-stage jettisoning section, and the first-stage jettisoning section to the Nth-stage jettisoning section are arranged in sequence from outside to inside and / or from bottom to top; when the value of N is 3 or more, the second-stage jettisoning section, the third-stage jettisoning section, etc. are arranged in sequence between the first-stage jettisoning section and the Nth-stage jettisoning section;

[0007] The load-jetting release mechanism comprises: a load-jetting device mounting frame, a motor support frame, a driving motor, a crank-connecting rod mechanism and a latch rod. The driving motor is mounted on the middle part of the load-jetting device mounting frame through the motor support frame. Two main limit channels are symmetrically arranged on the load-jetting device mounting frame. A plurality of load-jetting limit holes are sequentially opened at the bottom of each main limit channel from the inside to the outside. A latch rod is slidably installed in each main limit channel. Both latch rods are connected to the output end of the driving motor through the crank-connecting rod mechanism.

[0008] Two hanging ears are arranged on the first-stage dumping section, and the multi-stage dumping sections are symmetrically arranged on the left and right. Each hanging ear of the first-stage dumping section passes through a dumping limit hole of a main limit channel from bottom to top and is hung on a latch rod;

[0009] The two hanging ears of the multi-stage load-releasing sections arranged from inside to outside and / or from top to bottom are inserted into the multiple load-releasing limit holes at the bottom of the two main limit channels from inside to outside in sequence, and the driving motor is used to drive the two latch rods to slide synchronously in the two main limit channels respectively to release the first-stage load-releasing section, the second-stage load-releasing section...the N-stage load-releasing section of the multi-stage load-releasing section in sequence.

[0010] The above-mentioned underwater multi-stage load-releasing device, wherein the load-releasing release mechanism also includes: a second pin shaft with a hole and a first pin shaft with a hole, and the crank-connecting rod mechanism includes: a crank and two connecting rods, the middle part of the crank is connected to the output end of the driving motor, one end of each connecting rod is rotatably connected to one end of the crank through a second pin shaft with a hole, and the other end of each connecting rod is rotatably connected to one end of a pin rod through a first pin shaft with a hole.

[0011] The underwater multi-stage load dumping device, wherein the load dumping release mechanism further comprises: a ball, wherein the top and bottom surfaces of each latch rod are provided with at least one row of grooves, and at least one rollable ball is installed in each row of grooves;

[0012] The load-releasing mechanism further comprises: a latch rod plug, the other end of each latch rod is connected to a latch rod plug, and the latch rod plug is used to limit the balls in the multiple rows of grooves.

[0013] The above-mentioned underwater multi-stage dumping device, wherein the first-stage dumping section includes a first-stage dumping, and two first hanging ears are symmetrically arranged on the upper surface of the first-stage dumping, each first hanging ear is placed in a dumping limit hole, and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears.

[0014] The above-mentioned underwater multi-stage dumping device, wherein the first-stage dumping section also includes: a bottom plate, the first-stage dumping load is in the shape of an inverted boss, a cylindrical through hole is provided inside thereof, and the bottom surface of the first-stage dumping load is connected to the bottom plate.

[0015] The above-mentioned underwater multi-stage dumping device, wherein the N-th dumping section includes the N-th dumping load, and two N-th hanging ears are symmetrically arranged on the upper surface of the N-th dumping load, each N-th hanging ear is placed in a dumping limit hole, and the N-th dumping section is assembled on the dumping release mechanism through the two N-th hanging ears.

[0016] The above-mentioned underwater multi-stage dumping device, wherein, see Figures 1 to 9 As shown, the underwater multi-stage dumping device is an underwater two-stage dumping device, that is, N=2, the second-stage dumping section is cylindrical as a whole, and the second-stage dumping section also includes: an upper deck and a skirt, two first limit holes and two second limit holes are provided on the upper deck, and two second hanging ears are respectively placed in the two second limit holes, the second-stage dumping load is the Nth-stage dumping load 7, the top surface of the second-stage dumping load is connected to the bottom surface of the upper deck, the skirt is arranged on the outer periphery of the second-stage dumping load, the second-stage dumping load is welded by square tubes, and the top surface of the skirt is connected to the bottom surface of the upper deck;

[0017] The above-mentioned underwater multi-stage dumping device, wherein the underwater multi-stage dumping device is an underwater N-stage dumping device, the N-stage dumping section is cylindrical as a whole, and the N-stage dumping section also includes: an upper deck 8 and a skirt 9, 2×(N-1) first limiting holes and two second limiting holes are opened on the upper deck 8, each N-th hanging ear is placed in a second limiting hole, the top surface of the N-stage dumping 7 is connected to the bottom surface of the upper deck 8, the skirt 9 is arranged on the outer periphery of the N-stage dumping 7, the N-stage dumping 7 is welded by square tubes, and the top surface of the skirt 9 is connected to the bottom surface of the upper deck 8;

[0018] A hanging ear of any first-stage dumping section from the first-stage dumping section to the N-1-stage dumping section passes through a first limiting hole.

[0019] The underwater multi-stage dumping device, wherein the first dumping section to the Nth dumping section are all assembled on the dumping release mechanism, the Nth dumping section is arranged below the dumping release mechanism and located within the N-1th dumping section, and the first dumping section at the bottom is arranged outside the second dumping section and located below the second dumping section; each main limit channel is provided with N dumping limit holes at the bottom;

[0020] Two first hanging ears are arranged on the first-stage dumping section, each of which is inserted into a dumping hole from bottom to top, and each of which is provided with a first hanging hole for inserting a latch rod, and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears;

[0021] Two second hanging ears are arranged on the second-stage dumping section, each second hanging ear is inserted into a dumping limit hole from bottom to top, and each second hanging ear is provided with a second hanging hole for inserting a latch rod, and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears;

[0022] …

[0023] Two Nth hanging ears are arranged on the Nth level load-releasing section, and each Nth hanging ear is inserted into a load-releasing limit hole from bottom to top. Each Nth hanging ear is provided with an Nth hanging hole for inserting a latch rod, and the Nth level load-releasing section is assembled on the load-releasing release mechanism through the two Nth hanging ears.

[0024] In the present invention, the use of multi-stage load-dumping technology not only improves the diving depth capability of the submersible, but also optimizes the controllability and safety of its diving process, providing a more reliable and efficient tool for deep-sea exploration and research.

[0025] First, through multi-stage dumping, the submersible can gradually release ballast, thereby achieving a gradually deepening diving process. This method allows the submersible to reduce its own weight in stages before reaching the predetermined depth, thereby effectively avoiding the excessive sinking and potential instability that may be caused by releasing a large amount of ballast at one time. After each stage of dumping, the submersible can adjust its attitude at the new balance point to ensure a stable and controllable dive to deeper waters.

[0026] Secondly, multi-stage dumping also makes it possible to achieve fine control of the diving speed. By adjusting the weight and timing of each stage of dumping, the sinking speed of the submersible can be precisely controlled to ensure that the vehicle can maintain an ideal, stable, easy-to-manage and monitor speed range throughout the dive, allowing the submersible to better observe or record the surrounding environment.

[0027] In addition, the use of multi-stage jettisoning enhances the submersible's emergency response capability. In emergency situations, such as encountering unexpected obstacles or needing to immediately surface, the submersible can quickly perform the remaining jettisoning operations to minimize the diving depth and increase buoyancy to ensure a safe return to the surface.

[0028] The present invention is described by citing an underwater two-stage dumping device, which includes a dumping release mechanism, a second-stage dumping section, and a first-stage dumping section. The dumping release mechanism is composed of a dumping fixing frame, a driving motor, a crank slider structure, and a latch rod. The driving motor is installed on the dumping fixing frame. The second-stage dumping section is hung on the latch rod of the dumping release mechanism through a second hanging ear and is located below the dumping fixing frame. The first-stage dumping section is hung on the latch rod of the dumping release mechanism through a first hanging ear and is located below the second-stage dumping section. The two latch rods are synchronously pulled to slide by the driving motor to release the first-stage dumping section and the second-stage dumping section in sequence.

[0029] The multi-stage dumping device realizes two-stage dumping through a set of release mechanism. The system abandons the first stage of dumping to achieve suspension in water. When it needs to float, the second stage of dumping is abandoned, so that the equipment can achieve a multi-stage operation mode of first floating and then floating, with small space occupation and high reliability.

[0030] Due to the adoption of the above technology, the present invention has the following positive effects compared with the prior art:

[0031] (1) The present invention uses a single drive motor to drive a bidirectional crank slider mechanism, which can save space; the crank slider mechanism converts the rotation of the drive motor into horizontal linear motion of the latch rod, and then controls the release of the load through the displacement of the latch rod, thereby achieving multi-stage load throwing. Compared with electromagnetic load throwing devices and fuse-type load throwing devices, it has higher reliability and stability; and the balls installed on the upper and lower surfaces of the latch rod can reduce the friction resistance during the movement of the latch rod, that is, reduce the motor load and save energy;

[0032] (2) The present invention is provided with an N-stage dumping section including an N-stage dumping load, an upper deck and a skirt. The N-stage hanging lug passes through the second limiting hole of the upper deck and the dumping limiting hole of the dumping device mounting frame to limit the horizontal movement of the N-stage dumping load and enhance stability. The skirt and the upper deck are welded to the N-stage dumping load, so that the N-stage dumping load section presents a cylindrical shape, so as to reduce the diving resistance and prevent suspended matter or silt from entering the square tube.

[0033] (3) The present invention is provided with a first-stage dumping load section including a first-stage dumping load and a bottom plate. The first-stage dumping load is a boss-shaped concrete block with a circular through hole in the center, which can reduce the resistance during the diving process; the upper end of the first hanging ear passes through the first limiting hole of the upper deck and the dumping load limiting hole of the dumping load mounting frame to prevent the first-stage dumping load from moving in the horizontal direction and enhance stability. The bottom plate is installed at the bottom of the first-stage dumping load to prevent large suspended matter in the water from entering from the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an embodiment diagram of an underwater two-stage load-discharging device designed using an underwater multi-stage load-discharging device of the present invention.

[0035] Figure 2 yes Figure 1 Schematic diagram of the main cross-section structure of the underwater secondary load-releasing device.

[0036] Figure 3 yes Figure 1 Schematic diagram of the overhead structure of the underwater secondary load-releasing device.

[0037] Figure 4 yes Figure 1 Schematic diagram of the side structure of the underwater secondary load-dumping device.

[0038] Figure 5 yes Figure 1 Schematic diagram of the jettisoning release mechanism of the underwater secondary jettisoning device.

[0039] Figure 6 yes Figure 1Schematic diagram of the structure of the second-stage jettisoning device under water.

[0040] Figure 7 yes Figure 1 Schematic diagram of the structure of the first-stage jettisoning device under water at the secondary stage.

[0041] Figure 8 yes Figure 1 Schematic diagram of the structure of the pin rod of the underwater secondary load-releasing device.

[0042] Fig. 9 yes Figure 1 Schematic diagram of the structure of the second-stage dumping device of the underwater secondary dumping device.

[0043] In the attached drawings: 1. mounting frame of dumping device; 2. motor support frame; 3. driving motor; 4. crank; 5. connecting rod; 6. latch rod; 7. Nth stage dumping; 8. upper deck; 9. skirt; 10. first hanging ear; 11. first stage dumping; 12. bottom plate; 13. ball bearing; 14. latch rod plug; 16. first pin shaft with hole; 17. second pin shaft with hole. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0045] Please refer to Figures 1 to 9 The figure shows an underwater two-stage dumping device designed by using an underwater multi-stage dumping device of the present invention, that is, when N=2, the first-stage dumping section and the second-stage dumping section are both assembled on the dumping release mechanism, the second-stage dumping section is arranged below the dumping release mechanism and inside the first-stage dumping section, and the first-stage dumping section is arranged below the second-stage dumping section; two dumping limit holes are arranged at the bottom of each main limit channel;

[0046] Two first hanging ears 10 are arranged on the first-stage dumping section, each of which is inserted into a dumping hole from bottom to top, and each of which is provided with a first hanging hole for inserting the latch rod 6, and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears 10;

[0047] Two second hanging ears are arranged on the second-stage dumping section, and each second hanging ear is inserted into a dumping limit hole from bottom to top. Each second hanging ear is provided with a second hanging hole for inserting the latch rod 6, and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears.

[0048] Further, in a preferred embodiment, the underwater multi-stage dumping device is an underwater three-stage dumping device, that is, when N=3, a second-stage dumping section is arranged between the first-stage dumping section and the third-stage dumping section, the first-stage dumping section, the second-stage dumping section and the third-stage dumping section are all assembled on the dumping release mechanism, the third-stage dumping section is arranged below the dumping release mechanism and inside the second-stage dumping section, and the first-stage dumping section is arranged outside the second-stage dumping section and below the second-stage dumping section; three dumping limit holes are opened at the bottom of each main limit channel;

[0049] Two first hanging ears 10 are arranged on the first-stage dumping section, each of which is inserted into a dumping hole from bottom to top, and each of which is provided with a first hanging hole for inserting the latch rod 6, and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears 10;

[0050] Two second hanging ears are arranged on the second-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a second hanging hole for inserting the latch rod 6, and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears;

[0051] Two third hanging ears are arranged on the third-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a third hanging hole for inserting the latch rod 6, and the third-stage dumping section is assembled on the dumping release mechanism through the two third hanging ears;

[0052] Alternatively, the underwater multi-stage dumping device is an underwater four-stage dumping device, that is, when N=4, a second-stage dumping section and a third-stage dumping section are arranged between the first-stage dumping section and the fourth-stage dumping section, the first-stage dumping section, the second-stage dumping section, the third-stage dumping section and the fourth-stage dumping section are all assembled on the dumping release mechanism, the fourth-stage dumping section is arranged below the dumping release mechanism and inside the third-stage dumping section, the second-stage dumping section is arranged outside the third-stage dumping section and below the third-stage dumping section, and the first-stage dumping section is arranged outside the second-stage dumping section and below the second-stage dumping section; four dumping limit holes are opened at the bottom of each main limit channel;

[0053] Two first hanging ears 10 are arranged on the first-stage dumping section, each of which is inserted into a dumping hole from bottom to top, and each of which is provided with a first hanging hole for inserting the latch rod 6, and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears 10;

[0054] Two second hanging ears are arranged on the second-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a second hanging hole for inserting the latch rod 6, and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears;

[0055] Two third hanging ears are arranged on the third-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a third hanging hole for inserting the latch rod 6, and the third-stage dumping section is assembled on the dumping release mechanism through the two third hanging ears;

[0056] Two fourth hanging ears are arranged on the fourth-level dumping section, and each fourth hanging ear is inserted into a dumping limit hole from bottom to top. Each fourth hanging ear is provided with a fourth hanging hole for inserting the latch rod 6, and the fourth-level dumping section is assembled on the dumping release mechanism through the two fourth hanging ears.

[0057] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0058] The present invention also has the following implementation modes based on the above:

[0059] In a further embodiment of the present invention, the load-releasing device mounting frame 1 includes: a strip long plate, a strip short plate and a strip connecting plate, the two strip long plates are parallel to each other, and five strip short plates are arranged between the two strip long plates, and the two ends of each strip short plate are respectively connected to the two strip long plates, and the five strip short plates are parallel to each other. The two strip short plates at the left end are connected by a strip connecting plate, and the two strip short plates at the right end are connected by another strip connecting plate. A motor support frame 2 is installed on the strip short plate in the middle, and each strip connecting plate is provided with a main limiting channel for inserting a latch rod 6, and each strip connecting plate is provided with a plurality of load-releasing limiting holes, and each hanging ear of the first-level load-releasing section is inserted into a load-releasing limiting hole from bottom to top and hung on a latch rod 6.

[0060] In a further embodiment of the present invention, the jettisoning device mounting frame 1 is composed of a strip long plate, a strip short plate and a strip connecting plate. While ensuring the strength of the jettisoning device mounting frame 1, the use of materials is reduced, the weight of the jettisoning device mounting frame 1 is reduced, and it is easier to float on the water.

[0061] In a further embodiment of the present invention, an underwater multi-stage dumping device is specifically described as an underwater two-stage dumping device, wherein the specific structure of the second-stage dumping section is the specific structure of the N-stage dumping section in the present invention, and the specific structure of the second-stage dumping is the specific structure of the N-stage dumping 7 in the present invention, such as Figures 1 to 9As shown, it includes a load-releasing mechanism, a second-stage load-releasing section and a first-stage load-releasing section. The load-releasing mechanism includes a load-releasing device mounting frame 1, a driving motor 3, a motor support frame 2, a crank 4, a connecting rod 5 and a latch rod 6. The driving motor 3 is installed on the load-releasing device mounting frame 1 through the motor support frame 2 and connected by screws; the crank 4 is connected to the driving motor 3 by bolts, and is respectively connected to the two connecting rods 5 through the second perforated pin 17; the connecting rod 5 is connected to the latch rod 6 through the first perforated pin 16; the upper and lower surfaces of the latch rod 6 are each equipped with two rows of balls 13, and pass through the limiting holes of the load-releasing device mounting frame 1; the latch rod plug 14 is installed at the end of the latch rod 6 by screws; the second-stage load-releasing section includes the second-stage load-releasing, the upper deck and the skirt, which are installed on the load-releasing device. Below the device mounting frame 1, the second hanging ear of the second-stage dumping load passes through the second limiting hole of the upper deck, and is sleeved on the latch rod 6 of the dumping load release mechanism through the second hanging hole on the second hanging ear and the dumping load limiting hole of the dumping device mounting frame 1; the upper deck is welded to the second-stage dumping load; the skirt is connected to the second-stage dumping load and the upper deck by welding; the first-stage dumping load section includes a first hanging ear 10, a first-stage dumping load 11 and a bottom plate 12, which are installed below the second-stage dumping load section, and the first hanging hole on the first hanging ear 10 is sleeved on the latch rod 6 of the dumping load release mechanism; the first hanging ear 10 is embedded in the first-stage dumping load 11; the bottom plate 12 is installed at the bottom of the first-stage dumping load 11.

[0062] In a further embodiment of the present invention, the load-releasing mechanism is composed of a bidirectional crank slider mechanism through a crank 4, a connecting rod 5 and a latch rod 6. The center of the crank 4 is connected to the driving motor 3 and is located between the motor support frame 2 and the load-releasing device mounting frame 1; the latch rod 6 passes through the main limit channel of the load-releasing device mounting frame 1, the second suspension hole of the second-stage load-releasing section and the first suspension hole of the first-stage load-releasing section; the upper and lower surfaces of the latch rod 6 are each equipped with two rows of balls 13, and the end is equipped with a latch rod plug 14.

[0063] In a further embodiment of the present invention, the second hanging ear of the second-stage dumping section passes through the second limiting hole of the upper deck and the dumping limiting hole of the dumping device mounting frame 1, and is sleeved on the latch rod 6 of the dumping release mechanism through the second hanging hole on the second hanging ear; the second-stage dumping is welded by a square tube, see Fig. 9 The upper deck and skirt are welded on the second-stage dumping load to form the second-stage dumping load section.

[0064] In a further embodiment of the present invention, the first-stage dumping load 11 of the first-stage dumping section is a boss-shaped concrete block with a circular through hole in the center. The upper end of the first hanging ear 10 passes through the first limiting hole of the upper deck 8 and the dumping limiting hole of the dumping device mounting frame 1, and is sleeved on the pin rod 6 of the dumping release mechanism through the first hanging hole on the first hanging ear 10, and the lower end is embedded in the first-stage dumping load 11; the bottom plate 12 is installed at the bottom of the first-stage dumping load 11.

[0065] In a further embodiment of the present invention, the jettisoning release mechanism is installed above the jettisoning device mounting frame 1, and the entire jettisoning device is connected to other components of the underwater system through the jettisoning device mounting frame 1. A bidirectional crank slider mechanism is driven by a single driving motor 3, the center of the crank 4 is connected to the driving motor 3 and is located between the motor support frame 2 and the ejection device mounting frame 1, and the groove of the motor support frame 2 can limit the maximum rotation angle of the crank 4; the latch rod 6 passes through the main limiting channel of the ejection device mounting frame 1, so that the latch rod 6 can only move horizontally along the length of the rod, and passes through the second hanging hole of the second-level ejection and the first hanging hole on the first hanging ear 10 of the first-level ejection section to limit the vertical displacement of the ejection, and then the release of the ejection is controlled by the displacement of the latch rod 6, which has higher reliability and stability; two rows of balls 13 are installed on the upper and lower surfaces of the latch rod 6 to reduce the friction between the first hanging hole, the second hanging hole and the main limiting hole of the ejection device mounting frame 1, thereby reducing the load on the driving motor 3; a latch rod plug 14 is installed at the end of the latch rod 6 to block the balls 13 in the groove of the latch rod 6 and facilitate the insertion of the balls 13.

[0066] In a further embodiment of the present invention, the second-stage dumping section is installed below the dumping device mounting frame 1, and the second hanging ear of the second-stage dumping load passes through the second limiting hole of the upper deck and the dumping limiting hole of the dumping device mounting frame 1 to prevent the second-stage dumping load from moving in the horizontal direction; and through the second hanging hole on the second hanging ear, it is sleeved on the pin rod 6 of the dumping load release mechanism to realize the connection between the second-stage dumping load section and the dumping load release mechanism; the skirt and the upper deck are welded to the second-stage dumping load, so that the second-stage dumping load section is cylindrical to reduce the diving resistance and prevent suspended matter or mud from entering the square tube.

[0067] In a further embodiment of the present invention, the first-stage dumping section is installed below the second-stage dumping section, and the first-stage dumping 11 of the first-stage dumping section is a boss-shaped concrete block with a circular through hole in the center, which can reduce the resistance during the diving process; the upper end of the first hanging ear 10 passes through the first limiting hole of the upper deck 8 and the dumping limiting hole of the dumping device mounting frame 1 to prevent the first-stage dumping 11 from moving in the horizontal direction, and is sleeved on the pin rod 6 of the dumping release mechanism through the first hanging hole on the first hanging ear 10, and the lower end of the first hanging ear 10 is embedded in the first-stage dumping 11 to realize the connection between the first-stage dumping section and the dumping release mechanism; the bottom plate 12 is installed at the bottom of the first-stage dumping 11 to prevent large suspended matter in the water from entering from the bottom.

[0068] In a further embodiment of the present invention, the bidirectional crank slider mechanism is composed of a single crank 4 , two connecting rods 5 and two latch rods 6 .

[0069] In a further embodiment of the present invention, the working principle is as follows: when the underwater secondary dumping device is working, first, according to Figures 1 to 4As shown, the driving motor 3 is powered on, the motor shaft rotates, the motor shaft drives the crank 4 to rotate, and the bidirectional crank slider mechanism starts to move. The crank 4 drives the connecting rods 5 on both sides to move through the two second pin shafts with holes 17, and the connecting rods 5 on both sides drive the latch rods 6 on both sides to make horizontal linear motion through the first pin shafts with holes 16. When the motor shaft rotates a certain angle, the latch rod 6 moves a certain distance, and the latch rod plug 14 at the end of the latch rod 6 is pulled out from the first hanging hole of the first hanging ear 10 of the first stage dumping section. The latch rod 6 loses its limiting effect on the vertical direction of the first stage dumping 11, and the first stage dumping section sinks under the action of gravity, completing the first stage The motor stops rotating after the load-dumping task is completed; thereafter, the driving motor 3 runs again, the bidirectional crank slider mechanism continues to move, the latch rods 6 on both sides continue to move driven by the connecting rod 5, the latch rod 6 continues to move a distance, and the latch rod plug 14 at the end of the latch rod 6 is pulled out from the second hanging hole of the second hanging ear of the second-stage load-dumping. The latch rod 6 loses its limiting effect on the second-stage load-dumping in the vertical direction, and the second-stage load-dumping section sinks under the action of gravity, completing the second-stage load-dumping task, realizing multi-stage load-dumping, and the motor stops rotating.

[0070] In a further embodiment of the present invention, the load-releasing structure drives a bidirectional crank slider mechanism through a single drive motor 3, which can save space, and this mechanical release structure improves the reliability and stability of the load-releasing device; in addition, two rows of balls 13 are respectively installed on the upper and lower surfaces of the latch rod 6, which can reduce the friction between the latch rod 6 and the first suspension hole, the second suspension hole and the main limit channel of the load-releasing device mounting frame 1, thereby reducing the load on the drive motor 3.

[0071] In a further embodiment of the present invention, the second-stage dumping section has a cylindrical shape, the first-stage dumping section has a boss shape, and a circular through hole is provided in the center, which can reduce the resistance during the diving process. At the same time, a bottom plate 12 is installed at the bottom of the first-stage dumping 11 to prevent large suspended matter or mud in the water from entering from the bottom.

[0072] In a further embodiment of the present invention, the second-stage dump load is a hollow structure, which has the effect of reducing mass and increasing buoyancy.

[0073] In a further embodiment of the present invention, the above content is explained with an underwater two-stage dumping device, wherein the specific structure of the second-stage dumping section is the specific structure of the N-th stage dumping section in the present invention, and the specific structure of the second-stage dumping is the specific structure of the N-th stage dumping load 7 in the present invention. The specific structure, size and shape of the N-th stage dumping section and the N-th stage dumping load 7 can also be designed separately according to the number N.

[0074] In a further embodiment of the present invention, Figure 2The figure shows a schematic diagram of the main cross-sectional structure of an underwater two-stage jettisoning device. When N=3, the underwater multi-stage jettisoning device is an underwater three-stage jettisoning device, the Nth stage jettisoning section is the third stage jettisoning section, and the second stage jettisoning section is located between the first stage jettisoning section and the third stage jettisoning section. Specifically: two first hanging ears 10 are symmetrically arranged on the first stage jettisoning section, two second hanging ears are symmetrically arranged on the second stage jettisoning section, and two third hanging ears are symmetrically arranged on the third stage jettisoning section. A first hanging ear 10, a second hanging ear and a third hanging ear on either side are arranged in sequence from the outside to the inside and are all suspended on a latch rod 6. The order of the suspension process is the third hanging ear, the second hanging ear, and the first hanging ear 10, and the order of the release process is the first hanging ear 10, the second hanging ear, and the third hanging ear.

[0075] In a further embodiment of the present invention, Figure 2 The figure shows a schematic diagram of the main cross-sectional structure of an underwater two-stage dumping device. When N=4, the underwater multi-stage dumping device is an underwater four-stage dumping device, the Nth-stage dumping section is the fourth-stage dumping section, the second-stage dumping section and the third-stage dumping section are located between the first-stage dumping section and the fourth-stage dumping section. Specifically: two first hanging ears 10 are symmetrically arranged on the first-stage dumping section, two second hanging ears are symmetrically arranged on the second-stage dumping section, two third hanging ears are symmetrically arranged on the third-stage dumping section, and two fourth hanging ears are symmetrically arranged on the fourth-stage dumping section. A first hanging ear 10, a second hanging ear, a third hanging ear and a fourth hanging ear on either side are arranged in sequence from the outside to the inside and are all suspended on a latch rod 6. The order of the suspension process is the fourth hanging ear, the third hanging ear, the second hanging ear, and the first hanging ear 10, and the order of the release process is the first hanging ear 10, the second hanging ear, the third hanging ear, and the fourth hanging ear. The second-stage jettisoning section is located outside and / or below the third-stage jettisoning section, the first-stage jettisoning section is located outside and / or below the second-stage jettisoning section, and the fourth-stage jettisoning section is located inside and / or above the third-stage jettisoning section.

[0076] In a further embodiment of the present invention, the multi-stage load-releasing section is coaxially arranged and assembled in sequence from the inside to the outside and from the top to the bottom below the load-releasing release mechanism; specifically, the multi-stage load-releasing section can be covered layer by layer with a nesting doll structure and suspended on two latch rods 6 through a hanging ear structure, and the driving motor 3 is used to drive the two latch rods 6 to slide synchronously in the two main limit channels respectively to release the first-stage load-releasing section, the second-stage load-releasing section...the N-stage load-releasing section of the multi-stage load-releasing section in sequence.

[0077] In a further embodiment of the present invention, the multi-stage load-releasing section is coaxially arranged and assembled in sequence from the inside to the outside under the load-releasing release mechanism; specifically, the multi-stage load-releasing section can be coated from the inside to the outside with a cylindrical structure of similar length and different outer diameter and suspended on two latch rods 6 through a hanging ear structure, and the driving motor 3 is used to drive the two latch rods 6 to slide synchronously in the two main limit channels respectively to release the first-stage load-releasing section, the second-stage load-releasing section...the N-stage load-releasing section of the multi-stage load-releasing section in sequence.

[0078] In a further embodiment of the present invention, the multi-stage load-releasing sections are coaxially arranged and assembled in sequence from top to bottom below the load-releasing release mechanism; specifically, the multi-stage load-releasing sections can adopt a structure stacked layer by layer from top to bottom and be suspended on two latch rods 6 through a hanging ear structure, and the driving motor 3 is used to drive the two latch rods 6 to slide synchronously in the two main limit channels respectively to release the first-stage load-releasing section, the second-stage load-releasing section...the N-stage load-releasing section of the multi-stage load-releasing section in sequence.

[0079] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater multi-stage load dumping device, comprising: A load-releasing mechanism and a multi-stage load-releasing section, characterized in that the multi-stage load-releasing section is coaxially arranged and assembled below the load-releasing mechanism from inside to outside and / or from top to bottom in sequence; the total number of the multi-stage load-releasing sections is represented by N, N is an integer not less than 2, the load-releasing section located at the outermost and / or lowermost side is the first-stage load-releasing section, the load-releasing section located at the innermost and / or uppermost side is the Nth-stage load-releasing section, and the first-stage load-releasing section to the Nth-stage load-releasing section are arranged in sequence from outside to inside and / or from bottom to top; when the value of N is 3 or more, the second-stage load-releasing section, the third-stage load-releasing section, etc. are arranged in sequence between the first-stage load-releasing section and the Nth-stage load-releasing section; The load-jetting release mechanism comprises: a load-jetting device mounting frame (1), a motor support frame (2), a driving motor (3), a crank connecting rod mechanism and a latch rod (6); the driving motor (3) is mounted on the middle part of the load-jetting device mounting frame (1) through the motor support frame (2); two main limit channels are symmetrically arranged on the load-jetting device mounting frame (1); a plurality of load-jetting limit holes are sequentially opened at the bottom of each main limit channel from the inside to the outside; a latch rod (6) is slidably installed in each main limit channel; and the two latch rods (6) are connected to the output end of the driving motor (3) through the crank connecting rod mechanism; Two hanging ears are arranged on each first-stage dumping section, and the multi-stage dumping sections are symmetrically arranged on the left and right. Each hanging ear of the first-stage dumping section penetrates from bottom to top into a dumping limit hole of a main limit channel and is hung on a latch rod (6); The two hanging ears of the multi-stage dumping sections arranged from inside to outside and / or from top to bottom are sequentially inserted into the multiple dumping limit holes at the bottom of the two main limit channels from inside to outside, and the driving motor (3) is used to drive the two latch rods (6) to slide synchronously in the two main limit channels respectively to dump the first-stage dumping section, the second-stage dumping section ... the N-stage dumping section of the multi-stage dumping section in sequence.

2. The underwater multi-stage dumping device according to claim 1, characterized in that: The load-releasing mechanism further comprises: a second pin shaft with a hole (17) and a first pin shaft with a hole (16); the crank-connecting rod mechanism comprises: a crank (4) and two connecting rods (5); the middle part of the crank (4) is connected to the output end of the driving motor (3); one end of each connecting rod (5) is rotationally connected to one end of the crank (4) via a second pin shaft with a hole (17); the other end of each connecting rod (5) is rotationally connected to one end of a latch rod (6) via a first pin shaft with a hole (16).

3. The underwater multi-stage dumping device according to claim 2, characterized in that: The load-releasing mechanism further comprises: a ball (13), wherein the top surface and the bottom surface of each latch rod (6) are provided with at least one row of grooves, and at least one rollable ball (13) is installed in each row of grooves; The load-releasing mechanism further comprises: a latch rod plug (14), the other end of each latch rod (6) being connected to a latch rod plug (14), and the latch rod plug (14) being used for limiting the position of the balls (13) in the multiple rows of grooves.

4. The underwater multi-stage dumping device according to claim 1, characterized in that: The first-stage dumping section comprises a first-stage dumping load (11), and two first hanging ears (10) are symmetrically arranged on the upper surface of the first-stage dumping load (11), each of the first hanging ears (10) is placed in a dumping load limiting hole, and the first-stage dumping section is assembled on the dumping load release mechanism through the two first hanging ears (10).

5. The underwater multi-stage dumping device according to claim 4, characterized in that: The first-stage dumping section also includes a bottom plate (12). The first-stage dumping load (11) is in the shape of an inverted boss, and a columnar through hole is provided inside the first-stage dumping load (11). The bottom surface of the first-stage dumping load (11) is connected to the bottom plate (12).

6. The underwater multi-stage dumping device according to claim 1, characterized in that: The Nth level dumping section comprises an Nth level dumping load (7), the upper surface of which is symmetrically provided with two Nth hanging ears, each of which is placed in a dumping load limiting hole, and the Nth level dumping section is assembled on the dumping load release mechanism through the two Nth hanging ears.

7. The underwater multi-stage dumping device according to claim 5, characterized in that: The Nth stage dumping section is cylindrical in shape as a whole, and further comprises: an upper deck (8) and a skirt (9), the upper deck (8) is provided with 2×(N-1) first limiting holes and two second limiting holes, each Nth hanging ear is placed in a second limiting hole, the top surface of the Nth stage dumping load (7) is connected to the bottom surface of the upper deck (8), the skirt (9) is arranged on the outer periphery of the Nth stage dumping load (7), the Nth stage dumping load (7) is formed by welding square tubes, and the top surface of the skirt (9) is connected to the bottom surface of the upper deck (8); A hanging ear of any first-stage dumping section from the first-stage dumping section to the N-1-stage dumping section passes through a first limiting hole.

8. The underwater multi-stage dumping device according to any one of claims 1 to 7, characterized in that: The first to Nth level dumping sections are all assembled on the dumping release mechanism, the Nth level dumping section is arranged below the dumping release mechanism and inside the N-1th level dumping section, and the first level dumping section at the bottom is arranged outside the second level dumping section and below the second level dumping section; each main limit channel is provided with N dumping limit holes at the bottom; Two first hanging ears (10) are arranged on the first-stage dumping section, each of the first hanging ears (10) is inserted into a dumping hole from bottom to top, and each of the first hanging ears (10) is provided with a first hanging hole for inserting a latch rod (6), and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears (10); Two second hanging ears are arranged on the second-stage dumping section, each second hanging ear is inserted into a dumping limit hole from bottom to top, and each second hanging ear is provided with a second hanging hole for inserting a latch rod (6), and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears; …… The Nth level dumping section is provided with two Nth hanging ears, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with an Nth hanging hole for inserting a latch rod (6). The Nth level dumping section is assembled on the dumping release mechanism through the two Nth hanging ears.

9. The underwater multi-stage dumping device according to claim 8, characterized in that: The underwater multi-stage dumping device is an underwater two-stage dumping device, that is, when N=2, the first-stage dumping section and the second-stage dumping section are both assembled on the dumping release mechanism, the second-stage dumping section is arranged below the dumping release mechanism and inside the first-stage dumping section, and the first-stage dumping section is arranged below the second-stage dumping section; two dumping limit holes are arranged at the bottom of each main limit channel; Two first hanging ears (10) are arranged on the first-stage dumping section, each of the first hanging ears (10) is inserted into a dumping hole from bottom to top, and each of the first hanging ears (10) is provided with a first hanging hole for inserting a latch rod (6), and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears (10); Two second hanging ears are arranged on the second-stage dumping section, each second hanging ear is inserted into a dumping limit hole from bottom to top, and each second hanging ear is provided with a second hanging hole for inserting a latch rod (6). The second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears.

10. The underwater multi-stage dumping device according to claim 8, characterized in that: The underwater multi-stage dumping device is an underwater three-stage dumping device, that is, when N=3, a second-stage dumping section is arranged between the first-stage dumping section and the third-stage dumping section, the first-stage dumping section, the second-stage dumping section and the third-stage dumping section are all assembled on the dumping release mechanism, the third-stage dumping section is arranged below the dumping release mechanism and inside the second-stage dumping section, and the first-stage dumping section is arranged outside the second-stage dumping section and below the second-stage dumping section; three dumping limit holes are opened at the bottom of each main limit channel; Two first hanging ears (10) are arranged on the first-stage dumping section, each of the first hanging ears (10) is inserted into a dumping hole from bottom to top, and each of the first hanging ears (10) is provided with a first hanging hole for inserting a latch rod (6), and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears (10); Two second hanging ears are arranged on the second-stage dumping section, each second hanging ear is inserted into a dumping limit hole from bottom to top, and each second hanging ear is provided with a second hanging hole for inserting a latch rod (6), and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears; Two third hanging ears are arranged on the third-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a third hanging hole for inserting a latch rod (6), and the third-stage dumping section is assembled on the dumping release mechanism through the two third hanging ears; Alternatively, the underwater multi-stage dumping device is an underwater four-stage dumping device, that is, when N=4, a second-stage dumping section and a third-stage dumping section are arranged between the first-stage dumping section and the fourth-stage dumping section, the first-stage dumping section, the second-stage dumping section, the third-stage dumping section and the fourth-stage dumping section are all assembled on the dumping release mechanism, the fourth-stage dumping section is arranged below the dumping release mechanism and inside the third-stage dumping section, the second-stage dumping section is arranged outside the third-stage dumping section and below the third-stage dumping section, the first-stage dumping section is arranged outside the second-stage dumping section and below the second-stage dumping section; four dumping limit holes are opened at the bottom of each main limit channel; Two first hanging ears (10) are arranged on the first-stage dumping section, each of the first hanging ears (10) is inserted into a dumping hole from bottom to top, and each of the first hanging ears (10) is provided with a first hanging hole for inserting a latch rod (6), and the first-stage dumping section is assembled on the dumping release mechanism through the two first hanging ears (10); Two second hanging ears are arranged on the second-stage dumping section, each second hanging ear is inserted into a dumping limit hole from bottom to top, and each second hanging ear is provided with a second hanging hole for inserting a latch rod (6), and the second-stage dumping section is assembled on the dumping release mechanism through the two second hanging ears; Two third hanging ears are arranged on the third-stage dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a third hanging hole for inserting a latch rod (6), and the third-stage dumping section is assembled on the dumping release mechanism through the two third hanging ears; Two fourth hanging ears are arranged on the fourth-level dumping section, each of which is inserted into a dumping limit hole from bottom to top, and each of which is provided with a fourth hanging hole for inserting a latch rod (6). The fourth-level dumping section is assembled on the dumping release mechanism through the two fourth hanging ears.

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