A self-righting rescue boat having a plurality of independent air chambers
By designing multiple independent air chambers and a righting mechanism with retraction and deployment functions on the rescue boat, and using an integrated inflation and deflation pump and conversion valve assembly to control the inflation and deflation of the airbags, the wind resistance problem when the rescue boat capsizes is solved, enabling rapid righting and reducing wind resistance, thus improving the efficiency of the rescue boat's movement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU CHANGHAI FIRE FIGHTING EQUIP CO LTD
- Filing Date
- 2022-12-30
- Publication Date
- 2026-05-01
AI Technical Summary
When existing rescue boats capsize, the large size of the righting components results in significant wind resistance, affecting the boat's acceleration performance.
Design a self-righting rescue boat with multiple independent air chambers. By connecting a righting mechanism with retraction and deployment functions to the end of the support column, and using an integrated inflation and deflation pump and conversion valve assembly to control the inflation and deflation of the airbag, rapid righting and retraction can be achieved, reducing wind resistance.
It enables rescue boats to quickly and automatically right themselves when they capsize, and reduces the volume of the airbags when righting is not needed, thereby reducing wind resistance and improving the efficiency of the rescue boats.
Smart Images

Figure CN116215801B_ABST
Abstract
Description
A self-righting rescue boat with multiple independent air chambers Technical Field
[0001] This invention relates to the field of self-righting rescue boat technology, specifically to a self-righting rescue boat with multiple independent air chambers. Background Technology
[0002] A rescue boat is a small, maneuverable vessel used to rescue people in distress and to assemble lifeboats and rafts. To ensure safer and faster rescue of people in distress and assembly of lifeboats and rafts at sea, vessels must be equipped with rescue boats as required.
[0003] Application No. 202121289196.2 discloses a rapid-assembly self-righting emergency rescue boat, comprising a floating component, a righting component, and a snap-fit component. The floating component is used to support the rescued object. The righting component is located above the floating component. In this design, the righting component is both the floating component and the righting component is an inflatable airbag. When the rescue boat is capsized, the righting component, being inflated, will gradually right the capsized hull, thus giving the rescue boat a self-righting function. The righting component only functions when the rescue boat capsizes. Under normal circumstances, the righting component is always inflated, resulting in a large volume. Furthermore, the righting component is located directly above the entire rescue boat. During the rescue boat's movement, the large volume of the righting component results in significant wind resistance, thus hindering the acceleration of the entire rescue boat. Summary of the Invention
[0004] The purpose of this invention is to provide a self-righting rescue boat with multiple independent air chambers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-righting rescue boat with multiple independent air chambers, comprising a rescue boat body, two sets of support columns symmetrically arranged on the rescue boat body, and a righting mechanism with retraction and extension functions connected to the ends of the two sets of support columns;
[0006] The straightening mechanism includes a plastic sleeve with two sets of airbags symmetrically connected to both ends. An air inlet is opened on the plastic sleeve, and the air inlet is connected to a conversion valve assembly. The conversion valve assembly is connected to two sets of air pipes, and both sets of air pipes are connected to an integrated inflation and deflation pump, which is fixed on an H-shaped bracket.
[0007] Preferably, the switching valve assembly includes a valve seat, a mating end is provided below the valve seat, a ball groove is provided inside the valve seat, a valve body is provided inside the ball groove, the valve body is connected to a shaft, the shaft is fixedly connected to a cam, two sets of flow channels are symmetrically connected on both sides of the ball groove, the flow channels are connected to a mating joint mechanism, the shaft is screwed to an H-type bracket, and two sets of rectangular grooves are symmetrically provided on the valve seat.
[0008] Preferably, the connector mechanism includes a connector body, a slot is opened on one side of the connector body, a plug is inserted into the slot, the plug is connected to a support plate, a roller is provided at one end of the support plate, a sliding sleeve is provided below the support plate, the sliding sleeve is slidably connected to a sliding rod, and a spring is sleeved on the sliding rod.
[0009] Preferably, the valve body includes a ball with an L-shaped channel inside, and a rubber sleeve covering the ball. The rubber sleeve and the ball are rotatably connected to a ball groove.
[0010] Preferably, one set of air pipes is connected to the inflation end of the integrated inflation and deflation pump, and another set of air pipes is connected to the deflation end of the integrated inflation and deflation pump. The air inlet is fixedly connected to the docking end, and the H-shaped bracket is fixed on the plastic sleeve.
[0011] Preferably, one end of the connector body is connected to the flow channel, and the other end of the connector body is connected to the air tube. The plug includes a plug plate, and one side of the plug plate is connected to two sets of guide plates, with rubber pads fitted on the two sets of guide plates.
[0012] Preferably, a bearing is provided at one end of the roller, the bearing is embedded in the support plate, the roller is rotatably connected to the cam, and the slide rod is fixed in the rectangular groove.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. Start the integrated inflation and deflation pump. The inflation end of the integrated inflation and deflation pump injects air into a set of connector bodies through a set of air pipes. Then the air passes through the flow channel, the L-shaped channel inside the sphere, the docking end, and finally flows into the plastic sleeve through the docking end. The injection of air inflates and expands the two sets of airbags. As the airbags are continuously inflated, their volume increases, and the buoyancy generated by the airbags increases, which generates a reverse righting force on the capsized rescue boat, thus enabling the capsized rescue boat to be quickly and automatically righted.
[0015] 2. The motor drives the valve body to rotate along the ball groove via shaft one, causing the L-shaped channel inside the ball to be misaligned with the current inflation channel, thus stopping the inflation of the airbag. Simultaneously, shaft one drives the cam to rotate, causing two sets of rollers to rotate along the cam. The cam's protrusions then misalign with the current set of rollers. Under the rebound force of the corresponding spring, the sliding sleeve moves along the slide rod to drive the support plate. The support plate causes the plug to disengage from the slot, allowing the air injected by the inflation / deflation pump to flow out of the slot. As shaft one rotates, the cam's protrusions press against the other set of rollers. This other set of rollers, through the corresponding support plate, causes the sliding sleeve... The compression spring, along with the support plate, pushes the plug into the slot, sealing the main body of the connector. The L-shaped channel inside the sphere connects to another set of air-drawing channels. Thus, the air-drawing end of the integrated inflation and deflation pump sequentially passes through another set of air pipes, another set of connector bodies, another set of channels, the L-shaped channel inside the sphere, and the docking end, causing the air inside the airbag to be drawn out until the gas inside the airbag is completely drawn out, minimizing the volume of the inflated airbag and reducing its resistance to airflow, thereby reducing the resistance of the rescue boat's forward movement. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the present invention.
[0017] Figure 2 is a schematic diagram of the assembly of the straightening mechanism of the present invention.
[0018] Figure 3 is a cross-sectional schematic diagram of the combination of the switching valve assembly, air pipe, integrated inflation and deflation pump, and H-type bracket of the present invention.
[0019] Figure 4 is a schematic diagram of the combination of the valve seat and the connector mechanism of the present invention.
[0020] Figure 5 is a cross-sectional view of the valve body, shaft 1, and cam assembly of the present invention.
[0021] In the diagram: 1. Rescue boat body; 2. Support column; 3. Righting mechanism; 301. Plastic sleeve; 302. Airbag; 303. Air inlet; 304. Converter valve assembly; 305. Air pipe; 306. Inflator / evacuator pump; 307. H-type bracket; 3041. Valve seat; 11. Rectangular groove; 3042. Connecting end; 3043. Ball groove; 3044. Valve body; 3045. Shaft 1; 3046. Cam; 3047. Flow channel; 3048. Connecting joint mechanism; 81. Connecting joint body; 82. Slot; 83. Plug; 84. Support plate; 85. Roller; 86. Sliding sleeve; 87. Sliding rod; 88. Spring; 831. Blocking plate; 832. Guide plate; 833. Rubber pad; 41. Sphere; 42. L-shaped channel; 43. Rubber sleeve. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Please refer to Figures 1 to 5. This invention provides a technical solution: a self-righting rescue boat with multiple independent air chambers, comprising a rescue boat body 1, two sets of support columns 2 symmetrically arranged on the rescue boat body 1, and a righting mechanism 3 with retraction and extension functions connected to the ends of both sets of support columns 2. The righting mechanism 3 includes a plastic sleeve 301, with two sets of airbags 302 symmetrically connected to both ends of the plastic sleeve 301. An air inlet 303 is opened on the plastic sleeve 301, and the air inlet 303 is connected to a switching valve assembly 304. The switching valve assembly 304 is connected to two sets of air pipes 305, and both sets of air pipes 305 are connected to an integrated inflation and deflation pump 306. The integrated inflation and deflation pump 306 is fixed on an H-shaped bracket 307. One set of air pipes 305 is connected to the inflation end of the integrated inflation and deflation pump 306, and the other set of air pipes 305 is connected to the inflation end of the integrated inflation and deflation pump 306. The air intake 303 of the 6 is fixedly connected to the docking end 3042, and the H-shaped bracket 307 is fixed on the plastic sleeve 301. When the rescue boat capsizes, the integrated inflation and deflation pump 306 is activated. The inflation end of the integrated inflation and deflation pump 306 injects air into a set of docking head bodies 81 through a set of air pipes 305. Then the air flows through the flow channel 3047, the L-shaped channel 42 inside the sphere 41, the docking end 3042, and finally flows into the plastic sleeve 301 through the docking end 3042. The injection of air inflates and expands the two sets of airbags 302. As the airbags 302 are continuously inflated, their volume increases, and the buoyancy generated by the airbags 302 increases, causing the capsized rescue boat to generate a reverse righting force, thus enabling the capsized rescue boat to be quickly and automatically righted.
[0024] The switching valve assembly 304 includes a valve seat 3041, a mating end 3042 below the valve seat 3041, a ball groove 3043 inside the valve seat 3041, a valve body 3044 inside the ball groove 3043, a connecting shaft 3045 to the valve body 3044, a fixedly connected cam 3046 to the shaft 3045, two sets of flow channels 3047 symmetrically connected on both sides of the ball groove 3043, the flow channels 3047 connected to a coupling mechanism 3048, the shaft 3045 spun onto an H-type bracket 307, two sets of rectangular grooves 11 symmetrically arranged on the valve seat 3041, the coupling mechanism 3048 includes a coupling body 81, a slot 82 on one side of the coupling body 81, a plug 83 inserted into the slot 82, the plug 83 connected to a support plate 84, a roller 85 at one end of the support plate 84, and a... A sliding sleeve 86 is slidably connected to a sliding rod 87, and a spring 88 is fitted on the sliding rod 87. A valve body 3044 includes a ball 41 with an L-shaped channel 42 inside. A rubber sleeve 43 covers the ball 41, and the rubber sleeve 43, together with the ball 41, is rotatably connected to a ball groove 3043. One end of the connector body 81 is connected to the flow channel 3047, and the other end is connected to an air pipe 305. A plug 83 includes a blocking plate 831, with two sets of guide plates 832 connected to one side of the blocking plate 831. Rubber pads 833 are fitted on the two sets of guide plates 832. A bearing is installed at one end of a roller 85, embedded in a support plate 84. The roller 85 is rotatably connected to a cam 3046. The sliding rod 87 is fixed in a rectangular groove 11. The first shaft 3045 is driven by a motor. When the capsized rescue boat is righted... The motor drives the valve body 3044 to rotate along the ball groove 3043 via shaft 3045, causing the L-shaped channel 42 inside the ball 41 to be misaligned with the current inflation channel 3047, thus stopping the inflation of the airbag 302. Simultaneously, shaft 3045 drives cam 3046 to rotate, causing two sets of rollers 85 to rotate along cam 3046. The protrusion of cam 3046 misaligns with the current set of rollers 85. Under the rebound force of the corresponding spring 88, the sliding sleeve 86 drives the support plate 84 along the sliding rod 87. The support plate 84 causes the plug 83 to disengage from the slot 82, allowing the air injected by the inflation / deflation pump 306 to flow out of the slot 82. As shaft 3045 rotates, the protrusion of cam 3046 presses against the other set of rollers 85, causing the other set of rollers 85 to... The corresponding support plate 84 compresses the spring 88 by the sliding sleeve 86. At the same time, the support plate 84 pushes the plug 83 into the slot 82, which blocks the connector body 81. The L-shaped channel 42 inside the ball 41 is connected to another set of air-drawing channels 3047. Therefore, the air-drawing end of the air-inflating pump 306 passes through another set of air pipes 305, another set of connector bodies 81, another set of air channels 3047, the L-shaped channel 42 inside the ball 41, and the docking end 3042 in sequence, so that the air inside the airbag 302 is drawn away until the gas inside the airbag 302 is completely drawn away, so that the volume of the inflated airbag 302 is reduced to the minimum, thereby reducing the airbag 302's resistance to air and thus reducing the resistance of the rescue boat's forward movement.
[0025] During use, when the rescue boat capsizes, the integrated inflation and deflation pump 306 is activated. The inflation end of the pump 306 injects air into a set of connector bodies 81 through a set of air pipes 305. The air then flows sequentially through the flow channel 3047, the L-shaped channel 42 inside the sphere 41, and the docking end 3042, finally flowing into the plastic sleeve 301 through the docking end 3042. The injection of air inflates and expands the two sets of airbags 302. As the airbags 302 are continuously inflated, the airbags... As the volume of 302 increases, the buoyancy generated by the airbag 302 also increases, causing a reverse righting force on the capsized rescue boat. The motor drives the valve body 3044 to rotate along the ball groove 3043 via shaft 3045, causing the L-shaped channel 42 inside the ball 41 to be misaligned with the current inflation channel 3047, thus stopping the inflation of the airbag 302. At the same time, shaft 3045 drives the cam 3046 to rotate, causing the two sets of rollers 85 to rotate along the cam 3046. Simultaneously, the cam 3046's cam... The starting part will offset the current set of rollers 85. Under the rebound force of the corresponding spring 88, the sliding sleeve 86 will drive the support plate 84 along the sliding rod 87. The support plate 84 will drive the plug 83 to disengage from the slot 82, allowing the air injected by the charging and depressing pump 306 to flow out of the slot 82. As the shaft 3045 rotates, the protrusion of the cam 3046 will squeeze the other set of rollers 85. The other set of rollers 85 will cause the sliding sleeve 86 to compress the spring 88 through the corresponding support plate 84. At the same time, the support plate 84 will push the plug 83. Insert into slot 82 to seal the connector body 81, and the L-shaped channel 42 inside the ball 41 will connect with another set of air-drawing channels 3047. Therefore, the air-drawing end of the inflation-deflation pump 306 sequentially passes through another set of air pipes 305, another set of connector bodies 81, another set of air channels 3047, the L-shaped channel 42 inside the ball 41, and the docking end 3042, so that the air inside the airbag 302 is drawn away until the gas inside the airbag 302 is completely drawn away.
[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A self-righting rescue boat with multiple independent air chambers, comprising a rescue boat body (1), wherein two sets of support columns (2) are symmetrically arranged on the rescue boat body (1), characterized in that: Both sets of support columns (2) are connected to a straightening mechanism (3) with retraction and extension functions at their ends; the straightening mechanism (3) includes a plastic sleeve (301), two sets of airbags (302) are symmetrically connected to both ends of the plastic sleeve (301), an air inlet (303) is opened on the plastic sleeve (301), the air inlet (303) is connected to a switching valve assembly (304), the switching valve assembly (304) is connected to two sets of air pipes (305), both sets of air pipes (305) are connected to an integrated inflation and deflation pump (306), the integrated inflation and deflation pump (306) is fixed on an H-shaped bracket (307); the switching valve assembly (304) includes a valve seat (30) 41) A mating end (3042) is provided below the valve seat (3041). A ball groove (3043) is provided inside the valve seat (3041). A valve body (3044) is provided inside the ball groove (3043). The valve body (3044) is connected to a shaft (3045). The shaft (3045) is fixedly connected to a cam (3046). Two sets of flow channels (3047) are symmetrically connected on both sides of the ball groove (3043). The flow channels (3047) are connected to a mating joint mechanism (3048). The shaft (3045) is screwed onto an H-shaped bracket (307). Two sets of rectangular grooves (11) are symmetrically provided on the valve seat (3041). The mating joint mechanism (3048) includes a connector body (81), a slot (82) is provided on one side of the connector body (81), a plug (83) is inserted into the slot (82), the plug (83) is connected to a support plate (84), a roller (85) is provided at one end of the support plate (84), a sliding sleeve (86) is provided below the support plate (84), the sliding sleeve (86) is slidably connected to a sliding rod (87), a spring (88) is sleeved on the sliding rod (87); one set of air pipes (305) is connected to the inflation end of an integrated inflation and deflation pump (306), another set of air pipes (305) is connected to the deflation end of the integrated inflation and deflation pump (306), and an air inlet (303) is provided. The fixed connection docking end (3042) is fixed on the plastic sleeve (301); one end of the docking body (81) is connected to the flow channel (3047), and the other end of the docking body (81) is connected to the air tube (305); the plug (83) includes a blocking plate (831); one side of the blocking plate (831) is connected to two sets of guide plates (832); rubber pads (833) are sleeved on the two sets of guide plates (832); a bearing is provided at one end of the roller (85); the bearing is embedded in the support plate (84); the roller (85) is rotatably connected to the cam (3046); and the slide rod (87) is fixed in the rectangular groove (11).
2. A self-righting rescue boat with multiple independent air chambers according to claim 1, characterized in that: The valve body (3044) includes a ball (41) with an L-shaped channel (42) inside. The ball (41) is covered with a rubber sleeve (43), and the rubber sleeve (43) together with the ball (41) is rotatably connected to the ball groove (3043).
Citation Information
Patent Citations
A rapid-assembly self-righting emergency rescue boat
CN215155530U
Self-righting inflatable life raft
US6685520B1