Propeller protection device of water surface life-saving robot

Abstract

The utility model relates to the technical field of water surface lifesaving devices, in particular to a water surface lifesaving robot propeller protection device. The device comprises four connecting sleeves which are detachably arranged at the front ends and the rear ends of two propellers in a sleeving mode respectively. Multiple sets of protection assemblies arranged on the corresponding connecting sleeves in one-to-one correspondence with the connecting sleeves and used for applying thrust deviating from the object impacting direction to the thruster after the front end and the rear end of the thruster impact the object, and multiple sets of anti-rolling sets arranged on the corresponding connecting sleeves in one-to-one correspondence with the connecting sleeves and used for preventing sundries from entering the thruster and parts. The device aims to weaken the influence of impact on the submerged reef on the propeller as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to water surface lifesaving device technical field especially relates to a water surface lifesaving robot propeller protection device. BACKGROUND

[0002] With the continuous opening of water activities, emergency situations inevitably occur among personnel engaged in water activities every year, and for the rescue operation of water emergency situations, a water surface lifesaving robot as described in patent (CN113815815B) is designed, which is provided with two propellers on both sides for driving the device to advance and retreat in water, and the following problems exist in the actual lifesaving use process:

[0003] 1. The underwater situation is complex, and in the advancing process of the propeller, due to the fast speed, the influence of underwater currents, it is difficult to avoid underwater reefs, stones and other obstacles in time, which can easily cause the propeller to be damaged by impact and lose power, affecting the lifesaving time

[0004] 2. The propeller adopts rotating fan blades to drive water flow vortex to provide advancing power, and underwater weeds can grow at the same time, and there may be floating cloth strips or other debris, which can easily cause the fan blades to be wound with the above-mentioned debris during the rotating process of the fan blades in the propeller, causing the fan blades to be affected by rotation, causing the propeller to fail. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the purpose of the utility model is to provide a water surface lifesaving robot propeller protection device, which aims to minimize the impact of reefs on the propeller.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A water surface lifesaving robot propeller protection device, comprising four detachable connecting sleeves respectively sleeved on the front and rear ends of two propellers, a plurality of protection assemblies corresponding to each connecting sleeve and arranged on the corresponding connecting sleeve, and used for applying a propelling force to the propeller in the direction away from the impact object after the propeller front and rear end hits the object, and a plurality of anti-winding assemblies corresponding to each connecting sleeve and arranged on the corresponding connecting sleeve, and used for preventing debris from entering the propeller;

[0008] Each protection assembly comprises a fixed sleeve fixed on the end of the corresponding connecting sleeve away from the propeller and arranged along the length direction of the propeller, a buffer air bag fixed on the end of the fixed sleeve away from the corresponding connecting sleeve, a gas storage groove arranged in the side wall of the fixed sleeve along the length direction of the fixed sleeve, a plurality of communication valve petals arranged on the end of the fixed sleeve away from the connecting sleeve and used for connecting the buffer air bag and the gas storage groove, a plurality of insertion sleeves corresponding to each communication valve petal and fixed on the inner wall of the buffer air bag away from the connecting sleeve, a plurality of airflow flow hole groups corresponding to each insertion sleeve and arranged on the corresponding insertion sleeve, a gas pressing ring movably arranged in the gas storage groove along the length direction of the gas storage groove and close to the side of the gas storage groove close to the corresponding connecting sleeve and in sealing connection with the inner wall of the gas storage groove, and a plurality of pushing springs fixed between the gas pressing ring and the inner wall of the gas storage groove close to the corresponding connecting sleeve.

[0009] Each airflow flow hole group comprises a plurality of air inlet holes arranged on the end of the corresponding insertion sleeve close to the end of the gas storage groove in a circumferential interval, and a plurality of air outlet holes arranged on the end of the corresponding insertion sleeve away from the end of the gas storage groove in a circumferential interval.

[0010] More preferably, each of the insertion sleeves is provided with a circular arc end head close to the end of the corresponding gas storage groove.

[0011] More preferably, the outer wall and the inner wall of each gas pressing ring are respectively fixed with elastic sealing rings.

[0012] More preferably, each protection assembly comprises a material collecting ring groove arranged on the inner wall of the corresponding fixed sleeve, a semicircular protective shell fixedly connected with the inner wall of the material collecting ring groove close to the end of the corresponding connecting sleeve and having a middle part facing away from the corresponding propeller, a rotating shaft rotatably arranged on the central axis of the semicircular protective shell along the length direction of the fixed sleeve, a plurality of arc-shaped material pushing rods fixedly arranged on the side wall of the end of the rotating shaft away from the corresponding connecting sleeve in a circumferential interval, and a plurality of driving vanes fixedly arranged on the side wall of the end of the rotating shaft close to the corresponding connecting sleeve in a circumferential interval.

[0013] Each arc-shaped material pushing rod is arranged close to the outer wall of the corresponding semicircular protective shell.

[0014] More preferably, the connecting sleeve and the corresponding end of the propeller are detachably connected through threads.

[0015] The utility model has the following beneficial effects:

[0016] 1、The utility model discloses a protection assembly is hit to the rock when the end of the propeller, drives the gas in the gas storage groove to rush into the buffer air bag quickly, makes the buffer air bag expand quickly, relies on the impact force of the gas to resist and relieve the impact force of the impact rock, reaches the influence of weakening the impact rock to the propeller;

[0017] 2. This utility model uses an anti-winding component to drive the debris attracted to the semi-circular protective shell by the vortex, and pushes it into the collection ring groove by the arc-shaped pusher rod for centralized collection, thereby minimizing the occurrence of debris entering the propeller and getting entangled in the fan blades, which could cause the propeller to fail. Attached Figure Description

[0018] Figure 1 This is a diagram showing the usage state of the present invention, which is installed on the thrusters on both sides of a rescue robot.

[0019] Figure 2 This is an isometric view of a single-sided protective device for a single-sided propeller according to the present invention;

[0020] Figure 3 This is an exploded view of a single-sided protective device for a single-sided propeller according to the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of a single-sided protective device for a single-sided propeller according to the present invention;

[0022] Figure 5 This is a magnified view of part A of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Propeller; 2. Connecting sleeve; 3. Protective assembly; 31. Fixing sleeve; 32. Buffer airbag; 33. Air storage tank; 34. Connecting valve disc; 35. Insertion sleeve; 36. Airflow hole group; 361. Air inlet; 362. Air outlet; 37. Compression ring; 38. Push spring; 4. Anti-winding assembly; 41. Material collecting ring groove; 42. Semi-circular protective shell; 43. Rotating shaft; 44. Arc-shaped push rod; 45. Drive fan blade; 5. Elastic sealing ring. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a protective device for the thruster of a water rescue robot in this embodiment includes four detachable connecting sleeves 2 respectively fitted onto the front and rear ends of two thrusters 1, multiple sets of protective components 3 corresponding to each connecting sleeve 2 and used to apply a thrust to the thruster 1 in the direction away from the impacting object after the front and rear ends of the thruster 1 collide with an object, and multiple sets of anti-rolling components 4 corresponding to each connecting sleeve 2 and used to prevent debris from entering the thruster 1.

[0027] Each protective assembly 3 includes a fixed sleeve 31 fixed to the end of the corresponding connecting sleeve 2 away from the thruster 1 and arranged along the length of the thruster 1; a buffer airbag 32 fixed to the end of the fixed sleeve 31 away from the corresponding connecting sleeve 2; an air storage groove 33 arranged inside the side wall of the fixed sleeve 31 along the length of the fixed sleeve 31; several connecting valves 34 arranged circumferentially around the end of the fixed sleeve 31 away from the connecting sleeve 2 and used to connect the buffer airbag 32 and the air storage groove 33; and multiple connecting valves 34 connected one-to-one with each connecting valve 34. The system includes an insertion sleeve 35 fixedly installed on the inner wall of the buffer airbag 32 away from the connecting sleeve 2, multiple sets of airflow holes 36 corresponding to each insertion sleeve 35, a pressure ring 37 movably installed in the air storage tank 33 near the corresponding connecting sleeve 2 and sealed to the inner wall of the air storage tank 33, and several push springs 38 arranged circumferentially around the pressure ring 37 and fixed between the pressure ring 37 and the inner wall of the air storage tank 33 near the corresponding connecting sleeve 2.

[0028] Each airflow flow hole group 36 includes several air inlets 361 arranged circumferentially at intervals on the end of the corresponding insertion sleeve near the air storage tank 33, and several air outlets 362 arranged circumferentially at intervals on the end of the corresponding insertion sleeve away from the air storage tank 33.

[0029] When this product is in use, if the end of the thruster 1 collides with a reef or other object during its forward movement, the reef will impact the buffer airbag 32, causing the buffer airbag 32 to deform and contract towards the corresponding fixed sleeve 31. This causes at least one insertion sleeve 35 inside the buffer airbag 32 to be inserted into the air storage tank 33 from the corresponding connecting valve 34. The gas in the air storage tank 33 enters the insertion sleeve 35 through the air inlet 361 and then exits into the buffer airbag 32 through the air outlet 362, thus connecting the buffer airbag 32 and the air storage tank 33. At this time, the pressure ring 37 in the air storage tank 33 moves towards the buffer airbag 32 under the thrust of each push spring 38, thereby pushing the gas in the air storage tank 33 into the buffer airbag 32, causing the buffer airbag 32 to expand rapidly and even burst. The force of the gas cushions the impact of the reef and applies a thrust to the thruster 1 to move away from the reef, making it easier for the thruster 1 to escape from the dangerous position of the reef.

[0030] like Figure 5 As shown, each insertion sleeve has an arc-shaped end near the corresponding gas storage tank 33.

[0031] The rounded end of this product prevents jamming during use.

[0032] like Figure 5 As shown, each of the air compression rings 37 has an elastic sealing ring 5 fixed on its outer and inner walls respectively.

[0033] When this product is in use, the setting of the elastic sealing ring 5 increases the efficiency of the air pressure ring 37 pushing gas into the buffer air bag 32, further increasing the buffering effect and providing further protection for the thruster 1.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, each anti-winding assembly 4 includes a material collecting ring groove 41 on the inner wall of the corresponding fixed sleeve 31, a semi-circular protective shell 42 fixedly connected to the inner wall of the material collecting ring groove 41 near the corresponding connecting sleeve 2 and with its middle part facing away from the corresponding pusher 1, a rotating shaft 43 rotatably inserted into the central axis of the semi-circular protective shell 42 along the length direction of the fixed sleeve 31, a number of arc-shaped push rods 44 arranged circumferentially and fixed on the side wall of the rotating shaft 43 away from the corresponding connecting sleeve 2, and a number of drive fan blades 45 arranged circumferentially and fixed on the side wall of the rotating shaft 43 near the end of the corresponding connecting sleeve 2.

[0035] Each arc-shaped push rod 44 is fitted to the outer wall of the corresponding semi-circular protective shell 42.

[0036] When this product is in use, during water surface movement, the propeller 1 uses fan blades to drive the water flow vortex to provide power. At this time, debris is easily absorbed into the end of the propeller 1, causing debris to accumulate on the surface of the semi-circular protective shell 42 during the movement. Due to the influence of the water flow vortex, the drive fan blade 45 rotates, causing the rotating shaft 43 to rotate synchronously, causing the arc-shaped push rod 44 to rotate synchronously, moving in contact with the surface of the semi-circular protective shell 42, and driving the debris on the surface to gather and push into the collecting ring groove 41, thereby preventing debris from accumulating in the semi-circular protective shell 42, affecting the water flow through the propeller 1, and affecting the movement of the propeller 1's driving device.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the connecting sleeve 2 is detachably connected to the corresponding end of the corresponding thruster 1 via threads.

[0038] The threaded connection of this product allows for quick replacement of used protective devices.

[0039] The working principle of this device is as follows:

[0040] Step 1: Tighten the threaded connections of each connecting sleeve 2 to the corresponding end of the thruster 1. Start the thruster 1 to drive the device to move on the water surface.

[0041] Step 2: When the end of the thruster 1 collides with a reef or other object during its forward movement, the reef impacts the buffer airbag 32, causing the buffer airbag 32 to deform and contract towards the corresponding fixed sleeve 31. This causes at least one insertion sleeve 35 inside the buffer airbag 32 to be inserted into the air storage tank 33 from the corresponding connecting valve 34. This allows the gas in the air storage tank 33 to enter the insertion sleeve 35 through the air inlet 361 and then exit through the air outlet 362 into the buffer airbag 32, thus connecting the buffer airbag 32 and the air storage tank 33. At this time, the pressure ring 37 in the air storage tank 33 moves towards the buffer airbag 32 under the thrust of each push spring 38, thereby pushing the gas in the air storage tank 33 into the buffer airbag 32, causing the buffer airbag 32 to expand rapidly and even burst. The force of the gas cushions the impact of the reef and applies a thrust to the thruster 1 to move away from the reef, making it easier for the thruster 1 to escape from the dangerous position of the reef.

[0042] Step 3: During the water surface activity, since the propeller 1 uses fan blades to drive the water flow vortex to provide power, debris is easily absorbed into the end of the propeller 1. As a result, debris will accumulate on the surface of the semi-circular shell 42 during the activity. Due to the influence of the water flow vortex, the drive fan blade 45 rotates, which drives the rotating shaft 43 to rotate synchronously, causing the arc-shaped push rod 44 to rotate synchronously and move in contact with the surface of the semi-circular shell 42. This causes the debris on the surface to gather and be pushed into the collecting ring groove 41, thereby preventing debris from accumulating in the semi-circular shell 42 and affecting the water flow through the propeller 1 and the operation of the propeller 1's driving device.

[0043] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective device for the thruster of a water rescue robot, characterized in that: It includes four detachable connecting sleeves (2) respectively fitted on the front and rear ends of the two thrusters (1), multiple sets of protective components (3) corresponding to each connecting sleeve (2) and used to apply a thrust to the thruster (1) in the opposite direction of the impact object after the front and rear ends of the thruster (1) hit an object, and multiple sets of anti-roll components (4) corresponding to each connecting sleeve (2) and used to prevent debris from entering the thruster (1); Each protective assembly (3) includes a fixed sleeve (31) fixed to the end of the corresponding connecting sleeve (2) away from the thruster (1) and arranged along the length of the thruster (1); a buffer airbag (32) fixed to the end of the fixed sleeve (31) away from the corresponding connecting sleeve (2); an air storage tank (33) arranged along the length of the fixed sleeve (31) inside the side wall of the fixed sleeve (31); a plurality of connecting valves (34) arranged at intervals along the circumference of the fixed sleeve (31) at the end of the fixed sleeve (31) away from the connecting sleeve (2) and used to connect the buffer airbag (32) and the air storage tank (33); and a plurality of connecting valves (34). The system includes an insertion sleeve (35) fixedly installed on the inner wall of the buffer airbag (32) away from the connecting sleeve (2), multiple sets of airflow holes (36) fixedly installed on the corresponding insertion sleeve (35) in a one-to-one correspondence, a pressure ring (37) movably installed in the air storage tank (33) on the side close to the corresponding connecting sleeve (2) and sealed to the inner wall of the air storage tank (33), and several push springs (38) arranged at intervals along the circumference of the pressure ring (37) and fixed between the pressure ring (37) and the inner wall of the air storage tank (33) on the side close to the corresponding connecting sleeve (2); Each airflow hole group (36) includes several air inlets (361) arranged circumferentially at intervals on the end of the corresponding insertion sleeve near the air storage tank (33) and several air outlets (362) arranged circumferentially at intervals on the end of the corresponding insertion sleeve away from the air storage tank (33).

2. The protective device for the propeller of a water rescue robot according to claim 1, characterized in that: Each of the insertion sleeves has an arc end near the corresponding gas storage tank (33).

3. The protective device for the propeller of a water rescue robot according to claim 1, characterized in that: Each of the compressed air rings (37) has an elastic sealing ring (5) fixed on its outer and inner walls respectively.

4. The protective device for the thruster of a water rescue robot according to claim 1, characterized in that: Each anti-winding assembly (4) includes a material collecting ring groove (41) on the inner wall of the corresponding fixed sleeve (31), a semi-circular protective shell (42) fixedly connected to the inner wall of the material collecting ring groove (41) near the corresponding connecting sleeve (2) and with its middle part facing away from the corresponding pusher (1), a rotating shaft (43) rotatably inserted into the central axis of the semi-circular protective shell (42) along the length direction of the fixed sleeve (31), a number of arc-shaped push rods (44) arranged circumferentially and fixed on the side wall of the rotating shaft (43) away from the corresponding connecting sleeve (2), and a number of drive fan blades (45) arranged circumferentially and fixed on the side wall of the rotating shaft (43) near the corresponding connecting sleeve (2). Each of the aforementioned arc-shaped push rods (44) is fitted to the outer wall of the corresponding semi-circular protective shell (42).

5. The protective device for the propeller of a water rescue robot according to claim 1, characterized in that: The connecting sleeve (2) is detachably connected to the corresponding end of the corresponding thruster (1) via threads.

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