A rescue thrower

Abstract

The application discloses a rescue throwing device, which comprises a bottom plate, four insertion nails, a hydraulic cylinder, a base, a connecting frame and a battery. The four insertion nails are arranged at the four corners of the bottom end of the bottom plate. The front end of the hydraulic cylinder is rotatably arranged at the front side of the top end of the bottom plate through a pin shaft. The rear side of the base is rotatably arranged at the rear side of the top end of the bottom plate through a pin shaft, and the rear end of the hydraulic cylinder is rotatably arranged at the front side of the middle part of the base through a pin shaft. The connecting frame is arranged at the front side of the top end of the base. The battery is arranged at the rear side of the top end of the base, and the battery and the hydraulic cylinder are electrically connected. The throwing mechanism is arranged in the inner cavity of the base. When the device is used, multiple rescue warheads can be continuously launched after one inflation, thereby increasing the rescue efficiency and strengthening the rescue effect. The device does not need to be held by the rescue personnel for launching, thereby preventing the rescue personnel from being damaged due to the launching of the rescue warheads, eliminating the safety hazards and being convenient to use.

Description

Technical Field

[0001] This invention relates to the field of rescue equipment technology, specifically a rescue thrower. Background Technology

[0002] A rope thrower is a device that uses compressed air or gunpowder as power to throw ropes and life rings toward a target. According to its power source, it can be divided into pneumatic throwers and gunpowder throwers. According to its function, it can be divided into anchor hook launchers, rope throwers, rope shooting guns, rope throwers, anchor shooting guns, and anchor hook guns.

[0003] However, traditional throwers can only throw one rescue projectile at a time. After the current projectile is thrown, a new projectile needs to be loaded before another can be thrown. For example, patent number 200710020243.1 discloses a rescue thrower that includes a front tube, a shoulder rest, and a handle. The front tube houses a gas cylinder and a launching device. The bottom of the gas cylinder is located at the opening of the front tube, and the cylinder opening is fitted into a reverse-mounted gas cylinder connector of the launching device. The launching device also includes a switching device and a switch device. The head of the switching device is fixedly connected to the gas cylinder connector and is connected to a trigger via a linkage device. The trigger can drive the gas cylinder connector through the switching device. The switching device has a vent that communicates with the gas cylinder opening. The switch device is connected to the gas cylinder connector via a switch handle. This invention allows for clean and safe use.

[0004] This leads to a situation where, when multiple people need to be rescued simultaneously, rescue projectiles must be fired sequentially. Since the gas cylinders need to be refilled and projectiles reloaded after each launch, the rescue efficiency is low, and the optimal rescue time is easily missed. Furthermore, traditional projectile launchers require rescuers to hold them by hand and brace them against the shoulder rest. The recoil force at the moment of launch is significant, which can easily cause shoulder injuries to the rescuers or even cause them to fall due to the recoil, posing a safety hazard and making them inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as poor rescue effectiveness and a high risk of injury to rescue personnel, and to propose a rescue throwing device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rescue thrower includes: a base plate; four pins respectively disposed at the four corners of the bottom end of the base plate; a hydraulic cylinder, the front end of which is rotatably disposed on the front top of the base plate via a pin; a base, the rear side of which is rotatably disposed on the rear top of the base plate via a pin, and the rear end of which is rotatably disposed on the center front of the base via a pin; a connecting frame disposed on the front top of the base; a battery disposed on the rear top of the base, and the battery and the hydraulic cylinder are electrically connected; and a throwing mechanism disposed within the inner cavity of the base.

[0008] Furthermore, for mounting the rescue warhead, the throwing mechanism includes: a rotating cylinder, the outer wall of which is rotatably inserted into the inner cavity of the base, the rotating cylinder having a plurality of compressed gas chambers equidistantly spaced along the circumference; teeth, the number of which is a plurality of teeth, the plurality of which are respectively equidistantly spaced along the circumference on the rear side of the outer wall of the rotating cylinder; a throwing cylinder, the number of which is a plurality of throwing cylinders, the plurality of which are respectively equidistantly spaced along the circumference on the front side of the rotating cylinder, the inner cavity of the throwing cylinder being connected to the inner cavity of the compressed gas chamber; a rescue warhead, the rescue warhead being adapted to be inserted into the inner cavity of the throwing cylinder; and a baffle plate, the baffle plate being disposed on the outer wall of the rescue warhead.

[0009] Furthermore, to shield the rescue warhead, the throwing mechanism further includes: a connecting column, located at the center of the front side of the rotating cylinder; several support plates, arranged in groups of two, with each group of support plates equidistantly positioned along the circumferential direction on the front side of the outer wall of the connecting column; a guide rod, with its upper and lower ends respectively located on the upper and lower sides of the inner cavity of the support plate; and a sliding column, its outer wall slidably inserted into the inner cavity of the support plate. The sliding column is slidably sleeved on the outer wall of the guide rod; there are several baffles, the bottom ends of the front and rear sides of the baffles are respectively set on the inner side of the sliding columns, and the rear side of the baffle is in contact with the front side of the baffle plate; the middle of the rear side of the limiting plate is rotatably set on the front end of the connecting column through a bearing, the middle of the rear side of the limiting plate is set on the top of the connecting frame, and a limiting groove is opened on the rear side of the limiting plate, and the sliding column located on the front side is adapted to be inserted into the inner cavity of the limiting groove.

[0010] Furthermore, to increase the gas pressure within the compressed gas chamber, the rear side of the rotating cylinder is provided with: a gas distributor located in the middle of the rear side of the rotating cylinder; several gas delivery pipes, one end of which is equidistantly positioned circumferentially within the inner cavity of the gas distributor, and the other end of which is positioned within the inner cavity of several compressed gas chambers; a mounting bracket located in the middle of the rear side of the gas distributor; an air pump screwed into the inner cavity of the mounting bracket, and electrically connected to a battery; and two air pipes, one end of which is positioned at the air inlet and outlet of the air pump, and the other end of the air pipe inserted into the air outlet of the air pump is inserted into the inner cavity of the gas distributor.

[0011] Furthermore, to increase the safety of this device, the outer wall of the gas transmission pipe is also provided with: a pressure gauge, which is located on the front side of the inner cavity of the gas transmission pipe; and a check valve, which is located in the middle of the inner cavity of the gas transmission pipe.

[0012] Furthermore, to facilitate the rotation of the rotating cylinder, the top of the base is further provided with: a support frame, which is located at the rear left end of the top of the base; a worm, the right end of which is rotatably mounted on the rear right side of the bottom end of the inner cavity of the support frame via a bearing, and the left end of which extends out of the inner cavity of the support frame; a rotating rod, the front and rear ends of which are rotatably mounted on the front and rear top ends of the inner cavity of the support frame via bearings; a worm wheel, which is sleeved on the rear side of the outer wall of the rotating rod and locked by a set screw, with the worm and the worm wheel meshing; and a gear, which is sleeved on the front side of the outer wall of the rotating rod and locked by a set screw, with the gear meshing with several teeth.

[0013] Furthermore, the length of the inner cavity of the support plate coincides with the length of the baffle and the baffle plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The present invention supplies power to the hydraulic cylinder and air pump by battery. The device can be fixed in the soil by using pins. Activating the hydraulic cylinder can adjust the front end of the base to tilt up or down, thereby adjusting the launch angle of the rescue warhead.

[0016] (2) The present invention can deliver air into the inner cavity of the gas distributor through the air pump, and can deliver air into the inner cavity of the compressed gas chamber through the gas distributor and the air supply pipe, thereby increasing the air pressure in the inner cavity of the compressed gas chamber. The pressure gauge can be used to observe the air pressure in the inner cavity of the compressed gas chamber to prevent the air pressure from being too high. The check valve can be used to prevent the air in the inner cavity of the compressed gas chamber from flowing back. The cooperation between the baffles can be used to prevent the rescue projectile from being fired.

[0017] (3) The present invention uses a rotating worm gear to make the rotating cylinder rotate through the cooperation between the worm wheel, rotating rod, gear and teeth, and the rotating cylinder drives the support plate to rotate through the connecting column. The support plate can drive the baffle to move in a circumferential direction. The cooperation between the inner cavity of the support plate and the limiting slide groove can make the sliding column drive the baffle to move along the inner cavity shape of the limiting slide groove. When the sliding column drives the baffle to the top of the inner cavity of the limiting slide groove, the sliding column can drive the baffle to move downward until the baffle and the baffle plate separate. Under the action of air pressure, the current rescue warhead can be ejected.

[0018] (4) When this device is used, it can continuously launch multiple rescue warheads after one inflation, thereby increasing rescue efficiency and enhancing rescue effect. Furthermore, this device does not require rescuers to hold the launcher, thus preventing rescuers from being injured by launching rescue warheads, eliminating safety hazards, and making it easy to use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a gas splitter.

[0022] Figure 3 Exploded view of the present invention

[0023] Figure 4 This is a schematic diagram of the air pump.

[0024] Figure 5 Schematic diagram of the limiting slide.

[0025] Figure 6 Right sectional view of the rotating cylinder

[0026] Figure 7 This is an enlarged view of point A in the present invention.

[0027] Figure 8 This is an enlarged view of section B of the present invention.

[0028] Figure 9 This is an enlarged view of point C in the present invention.

[0029] The components represented by each number in the diagram are listed below: 1. Base plate; 2. Insert pin; 3. Hydraulic cylinder; 4. Base; 5. Connecting frame; 6. Battery; 7. Throwing mechanism; 71. Rotating cylinder; 72. Compressed gas chamber; 73. Tooth; 74. Throwing cylinder; 75. Rescue warhead; 76. Baffle; 77. Connecting column; 78. Support plate; 79. Guide rod; 710. Sliding column; 711. Baffle; 712. Limiting plate; 713. Limiting slide groove; 714. Gas distributor; 715. Gas pipe; 716. Pressure gauge; 717. Check valve; 718. Mounting bracket; 719. Air pump; 720. Air pipe; 8. Support frame; 9. Worm gear; 10. Rotating rod; 11. Worm wheel; 12. Gear. Detailed Implementation

[0030] 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.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Reference Figure 1-9A rescue thrower includes: a base plate 1, pins 2, a hydraulic cylinder 3, a base 4, a connecting frame 5, a battery 6, a throwing mechanism 7, a support frame 8, a worm gear 9, a rotating rod 10, a worm wheel 11, and a gear 12. There are four pins 2, each located at one of the four corners of the bottom of the base plate 1. These pins allow the device to be fixed in the soil. The front end of the hydraulic cylinder 3 is rotatably mounted on the front top of the base plate 1 via a pin. The hydraulic cylinder 3 is existing technology and will not be described in detail here. The hydraulic cylinder 3 is used to push the front side of the base 1 upwards or downwards. The rear side of the base 4 is rotatably mounted on the rear top of the base plate 1 via a pin. The rear end of the hydraulic cylinder 3 is rotatably mounted on the middle of the front side of the base 4 via a pin. The connecting frame 5 is located on the front top of the base 4. The battery 6 is located on the rear top of the base 4. The battery 6 and the hydraulic cylinder 9 are connected. Cylinder 3 is electrically connected, and battery 6 is existing technology. Battery 6 is used to power hydraulic cylinder 3 and air pump 719. Throwing mechanism 7 is located in the inner cavity of base 4 and is used for throwing rescue. Support frame 8 is located at the rear left end of the top of base 4. The right end of worm 9 is rotatably located at the rear right bottom end of the inner cavity of support frame 8 via bearing. The left end of worm 9 extends out of the inner cavity of support frame 8. The front and rear ends of rotating rod 10 are rotatably located at the top of the front and rear sides of the inner cavity of support frame 8 via bearing. Worm wheel 11 is sleeved on the rear side of the outer wall of rotating rod 10 and locked by set screw. Worm 9 and worm wheel 11 mesh. Gear 12 is sleeved on the front side of the outer wall of rotating rod 10 and locked by set screw. Gear 12 meshes with several teeth 73. The engagement of gear 12 and teeth 73 can cause rotating cylinder 71 to rotate.

[0033] Specifically, the throwing mechanism 7 includes: a rotating cylinder 71, a compressed gas chamber 72, teeth 73, a throwing tube 74, a rescue warhead 75, a baffle 76, a connecting column 77, a support plate 78, a guide rod 79, a sliding column 710, a baffle 711, a limiting plate 712, a limiting slide groove 713, a gas distributor 714, a gas supply pipe 715, a pressure gauge 716, a check valve 717, a mounting bracket 718, an air pump 719, and an air pipe 720. The outer wall of the rotating cylinder 71 is rotatably inserted into the inner cavity of the base 4. The rotating cylinder 71 has several compressed gas chambers 72 equidistantly arranged along the circumference. The compressed gas chambers 72 are used to hold compressed gas. The number of teeth 73 is several, and the teeth 73 are respectively arranged equidistantly along the circumference on the rear side of the outer wall of the rotating cylinder 71. Several throwing tubes 74 are arranged equidistantly along the circumference on the front side of the rotating cylinder 71. The inner cavity of the throwing tube 74 is connected to the inner cavity of the compressed gas chamber 72. The throwing tube 74 is used to install the rescue warhead 75. The rescue warhead 75 is adapted to be inserted into the inner cavity of the throwing tube 74. The rescue warhead 75 is existing technology and will not be described in detail here. A baffle 76 is provided on the outer wall of the rescue warhead 75. A connecting post 77 is provided in the middle of the front side of the rotating cylinder 71. Several support plates 78 are arranged in groups of two. Several groups of support plates 78 are arranged equidistantly along the circumference on the front side of the outer wall of the connecting post 77. The support plates 78 are used to support the baffle 711. The upper and lower ends of the guide rod 79 are respectively provided with On the upper and lower sides of the inner cavity of the support plate 78, guide rods 79 are used to limit the sliding column 710 to prevent the sliding column 710 from causing the baffle 711 to tilt. The middle part of the outer wall of the sliding column 710 is slidably inserted into the inner cavity of the support plate 78, and the sliding column 710 is slidably sleeved on the outer wall of the guide rod 79. The sliding column 710 is used to drive the baffle 711 to move. There are several baffles 711, and the bottom ends of the front and rear sides of the baffles 711 are respectively set inside the several sets of sliding columns 710. The rear side of the baffle 711 contacts the front side of the baffle 76, and the baffle 711 is used to block the baffle 76, thereby preventing the rescue projectile 75 from being fired. The length of the inner cavity of the support plate 78 coincides with the length of the baffle 711 and the baffle 76, ensuring that the baffle 711 can be aligned with the baffle 711. The baffle 76 is separated. The rear center of the limiting plate 712 is rotatably mounted on the front end of the connecting column 77 via a bearing. The rear center of the limiting plate 712 is located at the top of the connecting frame 5. A limiting groove 713 is formed on the rear side of the limiting plate 712. The sliding column 710 located on the front side is adapted to be inserted into the inner cavity of the limiting groove 713. The gas distributor 714 is located on the rear center of the rotating cylinder 71. There are several gas delivery pipes 715. One end of each gas delivery pipe 715 is equidistantly arranged in the inner cavity of the gas distributor 714 along the circumference. The other end of each gas delivery pipe 715 is arranged in the inner cavity of several compressed gas chambers 72. A pressure gauge 716 is located on the front side of the inner cavity of the gas delivery pipe 715. The pressure gauge 716 is prior art and will not be described in detail here.Pressure gauge 716 is used to observe the air pressure inside the compressed gas chamber 72. Check valve 717 is located in the middle of the inner cavity of gas delivery pipe 715. Check valve 717 is prior art and will not be described in detail here. Check valve 717 is used to prevent air backflow in the inner cavity of compressed gas chamber 72. Mounting bracket 718 is located in the middle of the rear side of gas distributor 714. Mounting bracket 718 is used to fix air pump 719. Air pump 719 is screwed into the inner cavity of mounting bracket 718. Air pump 719 and battery 6 are electrically connected. Air pump 719 is prior art and will not be described in detail here. Air pump 719 is used to deliver air into the inner cavity of compressed gas chamber 72. There are two air pipes 720. One end of each air pipe 720 is located at the air inlet and air outlet of air pump 719, respectively. The other end of the air pipe 720 inserted into the air outlet of air pump 719 is inserted into the inner cavity of gas distributor 714.

[0034] In this invention, during use, rotating the worm 9 causes the worm wheel 11 to rotate. The worm wheel 11, through the rotating rod 10, drives the gear 12 to rotate. The engagement between the gear 12 and the teeth 73 drives the rotating cylinder 71 to rotate. The rotation of the rotating cylinder 71 drives the support plate 78 to move circumferentially via the connecting column 77. The support plate 78 then drives the baffle 711 to move circumferentially. During the circumferential movement of the baffle 711, the guide rod 79 limits the sliding column 710, and the engagement between the sliding columns 710 and the limiting groove 713 drives the rotation of the cylinder 710. The baffles 711 move upward or downward along the inner cavity of the human limiting slide groove 713 until the rotating cylinder 71 rotates to a suitable position. At this time, the rear sides of several baffles 711 contact the front sides of several baffle plates 76 respectively. The air pump 719 is activated, and air is supplied to the inner cavity of the gas distributor 714 through the air pump 719 and air pipe 720. The gas distributor 714 then supplies the gas to the inner cavity of the compressed gas chamber 72 through the air supply pipe 715, thereby increasing the gas pressure in the inner cavity of the compressed gas chamber 72. The front side of the inner cavity of the compressed gas chamber 72 is protected by the rescue projectile 75 to prevent gas leakage. The backflow of gas is prevented by a check valve 717 on the rear side of the compressed gas chamber 72. The pressure gauge 716 is observed until the gas pressure in the compressed gas chamber 72 reaches a suitable level. When this device is needed for rescue, it is moved to a suitable location and fixed in the soil using the pins 2. The hydraulic cylinder 3 is activated, pushing the front side of the base 4 upwards until it reaches a suitable angle. The worm gear 9 is rotated, and the same process is repeated until the rescue projectile 75 rotates to the top. At this point, the baffle 711 corresponding to the rescue projectile 75 moves downwards to the position of the projectile. The baffle 76 on the outer wall of the rescue projectile 75 separates, and under the action of compressed gas in the corresponding compressed gas chamber 72, the rescue projectile 75 can be ejected, thereby achieving rescue. Repeated rotation of the worm gear 9 can achieve continuous firing of the rescue projectile 75, thereby increasing rescue efficiency. When in use, after one inflation, multiple rescue projectiles 75 can be fired continuously, thereby increasing rescue efficiency and enhancing rescue effect. Furthermore, this device does not require rescuers to hold the launcher, thus preventing rescuers from being injured by firing the rescue projectile 75, eliminating safety hazards, and facilitating use.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rescue thrower characterized in that, Include: The bottom plate (1), the plug (2), the hydraulic cylinder (3), the base (4), the connecting frame (5), the battery (6) and the throwing mechanism (7); The number of the plug (2) is four, four said plug (2) is respectively set in the bottom plate (1) four corners of the bottom end, the front end of the hydraulic cylinder (3) is rotatably arranged on the top front side of the bottom plate (1) through the pin shaft, the rear side of the base (4) is rotatably arranged on the top rear side of the bottom plate (1) through the pin shaft, the rear end of the hydraulic cylinder (3) is rotatably arranged on the front side of the base (4) through the pin shaft, the connecting frame (5) is arranged on the top front side of the base (4), the battery (6) is arranged on the top rear side of the base (4), the battery (6) and the hydraulic cylinder (3) are electrically connected, the throwing mechanism (7) is arranged in the inner cavity of the base (4); The throwing mechanism (7) comprises: a rotating cylinder (71), a gear (73), a throwing cylinder (74), a rescue bullet head (75), a baffle (76), a connecting column (77), a support plate (78), a guide rod (79), a sliding column (710), a baffle (711), a limiting plate (712), a gas flow divider (714), a gas conveying pipe (715), a mounting frame (718), a gas pump (719) and a gas pipe (720). The middle part of the outer wall of the rotating cylinder (71) is rotatably inserted into the inner cavity of the base (4), a plurality of compressed gas cavities (72) are equidistantly arranged on the circumference of the rotating cylinder (71), the number of the teeth (73) is several, and a plurality of the teeth (73) are equidistantly arranged on the rear side of the outer wall of the rotating cylinder (71) in the circumference direction. The number of the throwing cylinders (74) is several, a plurality of the throwing cylinders (74) are equidistantly arranged on the front side of the rotating cylinder (71) in the circumference direction, the inner cavity of the throwing cylinder (74) is connected with the inner cavity of the compressed gas cavity (72), the rescue bullet head (75) is rotatably inserted into the inner cavity of the throwing cylinder (74), the baffle (76) is arranged on the outer wall of the rescue bullet head (75), the connecting column (77) is arranged on the middle part of the front side of the rotating cylinder (71), the number of the supporting plates (78) is several, every two of the supporting plates (78) are a group, and a plurality of groups of the supporting plates (78) are equidistantly arranged on the outer wall of the front side of the connecting column (77) in the circumference direction. The upper and lower ends of the guide rod (79) are arranged on the upper and lower sides of the inner cavity of the supporting plate (78) respectively, the outer wall of the sliding column (710) is rotatably inserted into the inner cavity of the supporting plate (78), the sliding column (710) is rotatably sleeved on the outer wall of the guide rod (79), the number of the baffles (711) is several, the front and rear sides of the baffle (711) are rotatably inserted into the inner side of the sliding column (710), the rear side of the baffle (711) is in contact with the front side of the baffle (76), the rear middle part of the limiting plate (712) is rotatably arranged on the front end of the connecting column (77) through a bearing, the rear middle part of the limiting plate (712) is arranged on the top end of the connecting frame (5), the rear side of the limiting plate (712) is provided with a limiting sliding groove (713), the sliding column (710) on the front side is rotatably inserted into the inner cavity of the limiting sliding groove (713), the gas flow divider (714) is arranged on the rear middle part of the rotating cylinder (71), the number of the gas pipes (715) is several, one end of each of the gas pipes (715) is equidistantly arranged on the inner cavity of the gas flow divider (714) in the circumference direction, and the other end of each of the gas pipes (715) is arranged in the inner cavity of the compressed gas cavity (72). The mounting frame (718) is arranged on the rear middle part of the gas flow divider (714), the gas pump (719) is screw-connected to the inner cavity of the mounting frame (718), the gas pump (719) and the storage battery (6) are electrically connected, the number of the gas pipes (720) is two, one end of each of the gas pipes (720) is arranged on the gas inlet and the gas outlet of the gas pump (719), and the other end of the gas pipe (720) inserted into the gas outlet of the gas pump (719) is rotatably inserted into the inner cavity of the gas flow divider (714).

2. A rescue thrower according to claim 1, characterised in that: The outer wall of the gas pipe (715) is further provided with: a pressure gauge (716), which is arranged on the inner cavity of the gas pipe (715). A check valve (717) is arranged in the inner cavity of the gas delivery pipe (715).

3. A rescue thrower according to claim 2, characterised in that: The top end of the base (4) is further provided with a support frame (8), a worm (9), a rotating rod (10), a worm wheel (11) and a gear (12). The support frame (8) is arranged at the left end of the rear side of the top end of the base (4), the right end of the worm (9) is rotatably arranged at the bottom end of the right side of the inner cavity of the support frame (8) through a bearing, the left end of the worm (9) extends out of the inner cavity of the support frame (8), the front and rear ends of the rotating rod (10) are rotatably arranged at the top ends of the front and rear sides of the inner cavity of the support frame (8) through bearings respectively, the worm wheel (11) is sleeved on the rear side of the outer wall of the rotating rod (10) and is locked through a jackscrew, the worm (9) and the worm wheel (11) are engaged, the gear (12) is sleeved on the front side of the outer wall of the rotating rod (10) and is locked through a jackscrew, and the gear (12) and the plurality of teeth (73) are engaged.

4. A rescue thrower according to claim 3, characterised in that: The length of the inner cavity of the support plate (78) coincides with the length of the baffle (711) and the baffle plate (76).

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