Electromagnetic throwing device

Abstract

The utility model provides an electromagnetic throwing device which comprises an electromagnetic transmitting device, a coil, an armature, a guide sleeve and a throwing object are arranged in the electromagnetic transmitting device, the throwing object is arranged in the armature, and the armature can move forwards under the action of the coil so as to drive the throwing object to move forwards; the electric control box is used for providing driving force for the electromagnetic launching device, providing current for the coil and generating magnetic repulsive force between the coil and the armature so as to push the armature to move forwards, the armature drives a throwing object to be thrown out, and the electric control box is powered by a battery, designed in a split structure, small in size and convenient to use in an external field; electromagnetic launching is large in power, high in efficiency and convenient to maintain and carry, and the throwing device is widely applied to the fields of rescue, fire fighting, net throwing and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of emergency rescue, and particularly relates to an electromagnetic throwing device. Background Art

[0002] Throwing devices are widely used in industries such as shipbuilding and rescue. Currently, there are two types of throwing devices: those launched by gunpowder explosion and those launched by high-pressure gas. The use of gunpowder is restricted by control and reporting. Using high-pressure gas for launching requires a high-pressure gas cylinder, which is very troublesome during use. In addition, there are safety risks associated with the use of high-pressure gas. To solve the problems of existing throwing devices, the present invention uses electromagnetic launch technology to develop an electromagnetic throwing device, which can be used in ship-to-ship, ship-to-shore, high-rise building and mountain stream rope throwing rescue, and rescuing drowning persons. The launching force of the throwing device can be adjusted by adjusting the charging voltage as needed. Content of the Utility Model

[0003] In view of the problems existing in the prior art, the utility model provides an electromagnetic throwing device, including:

[0004] An electromagnetic launch device, which internally is provided with a coil, an armature, a guide sleeve and a thrown object, and the thrown object is placed in the armature; the armature can move forward under the action of the coil, so as to drive the thrown object to move forward;

[0005] An electronic control box, which is used to provide driving force for the electromagnetic launch device, and the electronic control box supplies current to the coil, so as to generate a magnetic repulsive force between the coil and the armature, thereby pushing the armature forward.

[0006] As a further description of the utility model, the electromagnetic launch device further includes a base, a housing, a rear end plate, a front end plate, a shock pad and a support plate;

[0007] The base includes a rubber plate and a magnetic seat fixedly connected to the rubber plate. The upper surface of the rubber plate is provided with a boss, and the boss is connected to one end of the housing;

[0008] The coil and the guide sleeve are distributed around the armature. The coil and the guide sleeve are both fixedly connected to the housing. The coil is installed between the rear end plate and the guide sleeve. The rear end plate is used to support the armature, and the guide sleeve is used to provide a positioning and guiding function for the armature. One end of the guide sleeve away from the coil is connected to the front end plate. The side of the front end plate facing away from the rear end plate is connected to the shock pad. The front part of the armature penetrates through the front end plate and the shock pad. The rear end plate and the front end plate are respectively fixedly connected to the housing. The other side of the front end plate is fixedly connected to the support plate, and the support plate is used to support the thrown object.

[0009] As a further description of the utility model, the outer surface of the housing is provided with a handle.

[0010] As a further description of the present utility model, the interior of the electric control box includes a boosting module, an energy storage capacitor, a battery, and a thyristor;

[0011] The battery is fixed to the lower part inside the electric control box through a battery fixing plate, and is used to provide voltage for the boosting module;

[0012] The energy storage capacitor is fixed above the battery through a capacitor fixing strip. The energy storage capacitor is used to store electrical energy during the charging process. When the energy storage capacitor is fully charged, the thyristor conducts, and discharges to the coil through a discharge port;

[0013] The boosting module is used to charge the energy storage capacitor. It can boost the DC 24V voltage to DC 3500V, and automatically stops charging when the voltage of the energy storage capacitor reaches the set value. The boosting module is located on the right side of the energy storage capacitor, and includes a boosting board and a boosting board fixing plate for fixing the boosting board.

[0014] As a further description of the present utility model, a first support plate and a second support plate are also connected between the bottom of the energy storage capacitor and the inner wall of the electric control box. The first support part and the second support plate are respectively located on the left and right sides of the battery.

[0015] As a further description of the present utility model, a discharge port protection cover is provided on the upper surface of the electric control box, a second handle is provided on the side surface of the electric control box, a pull rod is provided on the rear surface of the electric control box, two casters are provided at the bottom of the electric control box near the pull rod side, and a foot pad is provided at the bottom of the electric control box far from the pull rod side.

[0016] As a further description of the present utility model, the shape of the armature is a circular groove at the rear and a columnar hollow cylinder structure at the front.

[0017] As a further description of the present utility model, the electromagnetic launching device is connected to the electric control box through a cable.

[0018] As a further description of the present utility model, the armature is made of aluminum alloy material.

[0019] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0020] The utility model generates a pulsed current of tens of thousands of amperes by instantaneously discharging a storage pulse capacitor to an electromagnetic coil, thereby instantaneously generating a strong magnetic field. An induced current is generated in the armature in the strong magnetic field to produce a corresponding strong magnetic field. The two magnetic fields generated by the coil and the armature are in opposite directions. The coil is fixed, and under the interaction of magnetic forces, the magnetic force pushes the armature to move, and the armature drives the projectile to be launched. The electronic control box is powered by a battery, and the overall device adopts a split structure design, which is small in size and convenient to use in the field. The electromagnetic launch has the advantages of large power, high efficiency, easy maintenance and convenient carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic block diagram of the electromagnetic launcher provided by the utility model.

[0022] Figure 2 is a top view of the launching device of the electromagnetic launcher provided by the utility model.

[0023] Figure 3 is a sectional view of the launching device of the electromagnetic launcher provided by the utility model.

[0024] Figure 4 is an internal structure diagram of the electronic control box of the electromagnetic launcher provided by the utility model.

[0025] Figure 5 is an external structure diagram of the electronic control box of the electromagnetic launcher provided by the utility model.

[0026] Figure 6 is a schematic diagram of the boost charging and discharging principle of the electromagnetic launcher provided by the utility model.

[0027] REFERENCE NUMERALS:

[0028] 1 rubber plate; 2 base; 3 housing; 4 rear end plate; 5 first handle; 6 coil; 7 armature; 8 guide sleeve; 9 shock pad; 10 front end plate; 11 support plate; 12 magnetic seat; 13 electric box housing; 14 first support plate; 15 energy storage capacitor; 16 capacitor fixing strip; 17 thyristor; 18 discharge port; 19 charging port; 20 boost board fixing plate; 21 boost board; 22 battery fixing plate; 23 second support plate; 24 battery; 26 charging indicator light; 27 voltage display screen; 28 discharge port protection cover; 29 discharge indicator light; 30 voltage adjustment switch; 31 power on; 32 discharge port; 33 second handle; 34 pull rod; 36 caster; 37 foot pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0031] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0033] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The technical solution of the present utility model will be explained below in conjunction with specific embodiments.

[0036] As Figures 1-4 shown, an electromagnetic launcher is provided, including:

[0037] An electromagnetic emission device, inside which there are a coil 6, an armature 7, a guide sleeve 8 and a projectile. The projectile is placed in the armature 7. The armature 7 can move forward under the action of the coil 6, thereby driving the projectile to move forward. An electric control box, which is used to provide a driving force for the electromagnetic emission device. The electric control box supplies current to the coil 6, so that a magnetic field repulsive force is generated between the coil 6 and the armature 7, thereby pushing the armature 7 to move forward.

[0038] The electromagnetic emission device includes a base 2, a housing 3, a rear end plate 4, a front end plate 10, a shock pad 9, and a support plate 11. The base 2 includes a rubber plate 1 and a magnetic seat 12 fixedly connected to the rubber plate 1. A boss is provided on the upper surface of the rubber plate 1, and the boss is connected to one end of the housing 3. The coil 6 and the guide sleeve 8 are distributed around the armature 7. Both the coil 6 and the guide sleeve 8 are fixedly connected to the housing 3. The coil 6 is installed between the rear end plate 4 and the guide sleeve 8. The rear end plate 4 is used to support the armature 7, and the guide sleeve 8 is used to provide a positioning and guiding function for the armature 7. One end of the guide sleeve 8 away from the coil 6 is connected to the front end plate 10. A shock pad 9 is connected to the side of the front end plate 10 facing away from the rear end plate 4. The front part of the armature 7 penetrates through the front end plate 10 and the shock pad 9. The other side of the front end plate 10 is fixedly connected to the support plate 11. The rear end plate 4 and the front end plate 10 are respectively fixedly connected to the housing 3. The support plate 11 is used to support the projectile. A handle 5 is provided on the outer surface of the housing 3.

[0039] In an implementable manner, when in use, the electromagnetic emission device is adsorbed on a steel plate through the magnetic seat 12. For example, it can be adsorbed on the deck of a ship. The handle 5 can facilitate carrying the device and transferring its position. The coil 6 is a coil wound with flat copper wire, which has a large rated current, high insulation strength, high generated magnetic flux density, and high electric energy conversion efficiency.

[0040] In actual use, the pitching angle between the housing 3 and the base 2 can be adjusted according to the required distance of the thrown object. The adjustment method can be a manual adjustment method. Among them, the connection method between the housing 3 and the base 2 can be a movable connection or a hinged connection. During the process of adjusting the angle of the housing 3, an existing support member can be selected for support. For example, a hydraulic cylinder can be used to support the housing and can be adjusted up and down; the energy storage capacitor 15 discharges electricity to the fixed coil 6, and the coil 6 generates a transient magnetic field. The armature 7 moves under the action of the magnetic field repulsion force. The thrown object is placed in the hollow cylinder in front of the armature 7 and is thus pushed forward. At this time, the guide sleeve 8 guides the armature 7 to prevent the armature 7 from deviating during the forward movement. The front end plate 10 and the shock pad 9 buffer the armature 7 after launching. In addition, the rear part of the armature 7 adopts a circular groove structure to reduce the weight of the armature 7. The material of the armature 7 is selected as aluminum alloy, so that the armature 7 and the thrown object are easy to be pushed during the process of being pushed for throwing; after a throwing is completed, the reset of the armature 7 can be manual reset or automatic reset by its own weight, and then the next throwing can be carried out.

[0041] The interior of the electric control box includes a boost module, an energy storage capacitor 15, a battery 24 and a thyristor 17; the battery 24 is fixed inside the lower part of the electric control box through a battery fixing plate 22 and is used to provide voltage for the boost module; the energy storage capacitor 15 is fixed above the battery 24 through a capacitor fixing strip 16. The energy storage capacitor 15 is used to store electric energy during the charging process. When the energy storage capacitor 15 is fully charged, the thyristor 17 conducts and discharges electricity to the coil 6 through the discharge port 18; the boost module is used to charge the energy storage capacitor 15. It can boost the DC 24V voltage to DC 3500V and automatically stops charging when the energy storage capacitor voltage reaches the set value. The boost module is located on the right side of the energy storage capacitor 15 and includes a boost board 21 and a boost board fixing plate 20 for fixing the boost board 21; the bottom of the energy storage capacitor 15 and the inner wall of the electric control box are also connected with a first support plate 14 and a second support plate 23. The first support part 14 and the second support plate 23 are respectively located on the left and right sides of the battery 24.

[0042] In an implementable manner, the boost module is a boost module designed using existing high-frequency switching technology. The boost board 21 preferably uses an existing 24V / 3500V transformer, which can boost the DC 24V voltage to about DC 3500V for charging the energy storage capacitor 15. When the voltage of the energy storage capacitor 15 reaches the set value, the charging automatically stops; the energy storage capacitor 15 is an energy storage capacitor produced from imported polypropylene film material, with small volume, light weight, and high energy storage density. During the charging process, the energy storage capacitor 15 can continuously store electrical energy. When the charging is completed, it automatically triggers the discharge circuit, the thyristor conducts, and the energy storage capacitor instantaneously discharges to the coil 6, generating a pulse current of more than ten thousand amperes. The armature 7 will induce a strong pulse magnetic field, pushing the armature 7 to achieve the forward movement of the thrown object;

[0043] Specifically, the boost charging and capacitor discharge circuit is as follows: The 24V power supply is connected in series with the transformer and the power-on switch of the electric control box. When the power-on switch is turned on, the voltage is boosted to about 3500V through the transformer and is connected in parallel with the energy storage capacitor transformer to charge the energy storage capacitor. A current-limiting resistor is connected in series between the energy storage capacitor and the transformer to control the current during the charging process and protect the energy storage capacitor and other components in the circuit; during the discharge process, the energy storage capacitor is connected in series with the discharge thyristor, and a loop resistor is connected in series in the middle. When the energy storage capacitor is fully charged, it automatically triggers the discharge thyristor to complete the discharge to the coil. The loop resistor is used to adjust the magnitude of the discharge current and buffer the sudden current during the discharge process to protect the discharge thyristor and the coil.

[0044] In an implementable manner, the outer surface of the electric control box further includes an electric box housing 13. A charging indicator light 26, a voltage display screen 27, a discharge indicator light 29, a voltage adjustment switch 30, and a power-on switch 31 are provided on the electric box housing 13; the charging indicator light 26 is used to display the charging condition of the energy storage capacitor 15; the voltage display screen 27 is used to display the voltage value of the boost module; the voltage adjustment switch 30 is used to set the charging voltage required by the energy storage capacitor, and the power-on switch 31 is used to start or shut down the electric control box; a discharge port protective cover 28 is provided on the upper surface of the electric control box, a second handle 33 is provided on the side surface of the electric control box, a pull rod 34 is provided on the rear surface of the electric control box, two casters 36 are provided at the bottom of the electric control box near the pull rod side, and a foot pad 37 is provided at the bottom of the electric control box far from the pull rod side.

[0045] The electromagnetic launch device is connected to the electric control box through a cable. One end of the cable is connected to the discharge port of the electric control box, and the other end is connected to the coil of the launch device.

[0046] The specific working process of the above electromagnetic catapult is as follows:

[0047] Connect the electric control box and the launching device according to the wiring requirements, place the thrown object into the armature 7, adjust the throwing angle of the launching device according to the weight and throwing distance of the thrown object on site, set the charging voltage through the voltage regulating switch 30, turn on the power switch 31 to start charging, and the voltage display screen 27 shows the charging voltage. At this time, the charging indicator light is on. When the charging voltage of the energy storage capacitor 15 reaches the set voltage value, the charging is completed and the charging indicator light 26 is on. The charging indicator light 26 goes out, and the controller automatically triggers the thyristor 17 to conduct. The energy storage capacitor 15 discharges to the coil 6, the coil 6 generates a transient magnetic field, the armature 7 induces current and generates a transient magnetic field. The coil 6 and the armature 7 generate a mutually repulsive electromagnetic force, and the armature 7 moves relatively. The armature 7 pushes the thrown object to move forward together. The armature 7 is blocked by the front end plate 10 and the shock pad 9, and the thrown object is thrown, completing an electromagnetic throwing process of the thrown object.

[0048] The embodiments given above are the preferred examples for implementing the present utility model, and the present utility model is not limited to the above embodiments. Any non-essential addition or replacement made by those skilled in the art according to the technical features of the technical solution of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An electromagnetic throwing device, characterized in that: include: An electromagnetic launching device, wherein a coil (6), an armature (7), a guide sleeve (8) and a projectile are arranged inside the device, wherein the projectile is placed in the armature (7); the armature (7) can move forward under the action of the coil (6), thereby driving the projectile to move forward; An electric control box is used to provide driving force for the electromagnetic launch device, and the electric control box provides current to the coil (6), so that a magnetic field repulsion force is generated between the coil (6) and the armature (7), thereby pushing the armature (7) to move forward.

2. An electromagnetic throwing device according to claim 1, characterized in that: The electromagnetic launch device further comprises a base (2), a shell (3), a rear end plate (4), a front end plate (10), a shock absorbing pad (9) and a support plate (11); The base (2) comprises a rubber plate (1) and a magnetic base (12) fixedly connected to the rubber plate (1), the upper surface of the rubber plate (1) is provided with a boss, and the boss is connected to one end of the shell (3); The coil (6) and the guide sleeve (8) are distributed around the armature (7); the coil (6) and the guide sleeve (8) are both fixedly connected to the housing (3); the coil (6) is installed between the rear end plate (4) and the guide sleeve (8); the rear end plate (4) is used to support the armature (7); the guide sleeve (8) is used to provide a positioning guide for the armature (7); one end of the guide sleeve (8) away from the coil (6) is connected to the front end plate (10); a side of the front end plate (10) that is biased towards the rear end plate (4) is connected to the shock absorbing pad (9); the front part of the armature (7) passes through the front end plate (10) and the shock absorbing pad (9); the rear end plate (4) and the front end plate (10) are respectively fixedly connected to the housing (3); the other side of the front end plate (10) is fixedly connected to a support plate (11); the support plate (11) is used to support the projectile.

3. An electromagnetic throwing device according to claim 2, characterized in that: The outer surface of the housing (3) is provided with a handle (5).

4. The electromagnetic throwing device according to claim 1, characterized in that: The electric control box includes a boost module, an energy storage capacitor (15), a battery (24) and a thyristor (17); The battery (24) is fixed at the lower part of the electric control box via a battery fixing plate (22) and is used to provide voltage for the boost module; The energy storage capacitor (15) is fixed above the battery (24) via a capacitor fixing strip (16); the energy storage capacitor (15) is used to store electric energy during the charging process; when the energy storage capacitor (15) is fully charged, the thyristor (17) is turned on to discharge the coil (6) via the discharge port (18); The boost module is used to charge the energy storage capacitor (15), and can boost a DC 24V voltage to a DC 3500V. When the voltage of the energy storage capacitor reaches a set value, charging is automatically stopped. The boost module is located on the right side of the energy storage capacitor (15), and comprises a boost plate (21), and a boost plate fixing plate (20) for fixing the boost plate (21).

5. The electromagnetic throwing device according to claim 4, characterized in that: The bottom of the energy storage capacitor (15) and the inner wall of the electric control box are also connected to a first support plate (14) and a second support plate (23), and the first support plate (14) and the second support plate (23) are respectively located on the left and right sides of the battery (24).

6. The electromagnetic throwing device according to claim 1, characterized in that: The upper surface of the electric control box is provided with a discharge port protection cover (28), the side surface of the electric control box is provided with a second handle (33), the rear surface of the electric control box is provided with a pull rod (34), the bottom of the electric control box close to the pull rod is provided with two casters (36), and the bottom of the electric control box away from the pull rod is provided with a pad foot (37).

7. The electromagnetic throwing device according to claim 1, characterized in that: The shape of the armature (7) is that the rear portion is a circular groove and the front portion is a columnar hollow cylindrical structure.

8. The electromagnetic throwing device according to claim 1, characterized in that: The electromagnetic launching device is connected to the electric control box via a cable.

9. The electromagnetic throwing device according to claim 1, characterized in that: The armature (7) is made of aluminum alloy.

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