Magnetic resistance emitter ammunition supply mechanism

Abstract

The invention provides a magnetic resistance launcher bullet supply mechanism. The magnetic resistance launcher bullet supply mechanism comprises a magazine, a bullet sliding ramp, a bullet stirring assembly and a switch assembly. A plurality of ferromagnetic bullets are pressed in the magazine, and the magazine is used for pushing the ferromagnetic bullets to the bullet outlet in sequence; the sliding elastic ramp is arranged in a launching tube of the magnetic resistance launcher and forms an initial launching position; the projectile shifting assembly is used for shifting ferromagnetic projectiles located at the projectile outlet to an initial launching position; the bullet shifting assembly is connected with a power supply of the magnetic resistance emitter through the switch assembly to form a bullet supply electric loop; the switch assembly is triggered to be switched on and switched off based on the movement of the ferromagnetic projectile, and therefore continuous and automatic projectile feeding of the ferromagnetic projectile to the initial launching position is achieved. According to the ammunition feeding mechanism of the magnetic resistance launcher, the structure of the ammunition feeding mechanism can be simplified, the control difficulty is reduced, and the stability of automatic continuous ammunition feeding is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of non-lethal weapons and equipment, and in particular relates to a magnetic resistance launcher ammunition feeding mechanism. Background Art

[0002] Non-lethal weapons have enormous potential for application in areas such as maintaining stability, conflict resolution, riot control, and counter-terrorism. Traditional non-lethal weapons are primarily kinetic weapons, powered by compressed gas or gunpowder gas, and employ rubber or plastic bullets with graded speed control to strike targets. Since kinetic weapons cannot precisely control projectile velocity, there is a risk of fatal damage to the target. The application of magnetoresistive launch technology in the non-lethal weapons field can effectively address this problem. A magnetoresistive launcher utilizes the electromagnetic force generated by an energized coil to drive the projectile (magnetic material serves as the armature) for launch. The electromagnetic coil and trigger control system work together to convert electrical energy into the kinetic energy of the armature, thereby achieving non-lethal precision strikes on the target.

[0003] At present, the feeding mechanism of the magnetoresistive electromagnetic launcher usually uses electromagnetic force to drive the projectile to move along the feeding track to the launch position. It also needs to be equipped with corresponding sensors to monitor the projectile position and feeding status. It is relatively complex in structure and control. The disadvantage brought about by this is that the stability of continuous automatic feeding is insufficient. Therefore, there is an urgent need to improve the feeding technology solution. Summary of the Invention

[0004] An embodiment of the present invention provides a magnetoresistive launcher feeding mechanism, which aims to reduce the difficulty of automatic feeding structure and control and improve the stability of continuous automatic feeding.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: providing a magnetoresistive launcher feeding mechanism, comprising a magazine, a bullet sliding ramp, a bullet ejection assembly and a switch assembly; the magazine is connected to the magnetoresistive launcher and has a bullet discharge port at the top, a plurality of ferromagnetic projectiles are pressurized in the magazine, and the magazine is used to push each ferromagnetic projectile toward the bullet discharge port in sequence; the bullet sliding ramp is arranged in the launch tube of the magnetoresistive launcher and forms an initial launch position; the bullet ejection assembly is connected between the bullet discharge port and the bullet sliding ramp and is used to eject the ferromagnetic projectile located at the bullet discharge port to the initial launch position; the bullet ejection assembly is connected to the power supply of the magnetoresistive launcher through the switch assembly to form a bullet feeding circuit; wherein the switch assembly has a first electrode and a second electrode, and the first electrode and the second electrode can always be conductive when the ferromagnetic projectile is in the bullet discharge port and when it reaches the initial launch position from the bullet discharge port.

[0006] In one possible implementation, the switch assembly includes a bullet-pulling switch and a position-controlled switch arranged in series; wherein the first electrode and the second electrode respectively form two contacts of the bullet-pulling switch; the position-controlled switch is arranged on the sliding ramp and is a normally closed switch, and the position-controlled switch is used to disconnect under the pressure of the ferromagnetic projectile reaching the initial launching position.

[0007] In some embodiments, a first electrode is arranged on the inner wall of the sliding ramp along the extension direction of the sliding ramp, and a second electrode is arranged between the sliding ramp and the discharge port; wherein, the front end of the ferromagnetic projectile located at the discharge port contacts the inner wall of the sliding ramp to conduct the first electrode; the rear end of the ferromagnetic projectile that reaches the initial launch position is exposed from the sliding ramp and presses against the front end of the ferromagnetic projectile located at the discharge port, and the ferromagnetic projectile is always in contact with the second electrode during the process of moving from the discharge port to the initial launch position.

[0008] Exemplarily, the position-controlled switch includes a first pressing plate and a second pressing plate, which respectively form two contacts of the position-controlled switch; the first pressing plate and the second pressing plate are both recessed and connected to a groove opened on the inner wall of the sliding ramp; wherein, one end of the first pressing plate extends out of the groove, and when the ferromagnetic projectile reaches the initial launching position, it presses against the first pressing plate to separate the first pressing plate from the second pressing plate.

[0009] For example, the switch assembly also includes a mode switch connected in series to the ammunition supply circuit, and the mode switch is a shooting mode selection switch of the magnetoresistive transmitter.

[0010] In a possible implementation, at least one permanent magnet is embedded in the inner wall of the projectile ramp, and the permanent magnet is used to attract and fix the ferromagnetic projectile that has arrived at the initial launching position.

[0011] In some embodiments, the magazine includes a shell and an elastic pushing member; the interior of the shell is used to accommodate ferromagnetic projectiles and has a bullet outlet at the top; the elastic pushing member is arranged on the inner bottom wall of the shell and elastically pushes the ferromagnetic projectiles upward.

[0012] Exemplarily, an openable bottom cover is provided at the bottom end of the shell, and an elastic pushing member is provided on the bottom cover.

[0013] For example, the elastic pushing member includes an elastic element and a spring-receiving plate; one end of the elastic element is connected to the bottom cover, and the other end is connected to the spring-receiving plate.

[0014] In some embodiments, the bullet ejection assembly includes a drive motor and a rotating rudder; wherein the drive motor is electrically connected to the power supply, the rotating rudder is connected to the output end of the drive motor, and the rotating rudder is used to rotate and eject the ferromagnetic projectile located at the bullet outlet under the drive of the drive motor.

[0015] The beneficial effect of the magnetoresistive launcher feeding mechanism provided by the present invention is that: compared with the prior art, the magnetoresistive launcher feeding mechanism of the present invention can utilize the conductivity of the ferromagnetic projectile to conduct the first electrode and the second electrode when the ferromagnetic projectile is pushed to the discharge port in the magazine. At this time, only the switch component needs to be closed to form a conductive feeding circuit between the bullet-pulling component and the power supply of the magnetoresistive launcher, so that the bullet-pulling component is operated to push the ferromagnetic projectile at the discharge port to the initial firing position, and the next ferromagnetic projectile in the magazine is pushed to the discharge port. At the same time, the magnetoresistive launcher launches the ferromagnetic projectile at the initial firing position. The projectile always maintains conduction to the first electrode and the second electrode during the process of reaching the initial launching position from the bullet outlet. Therefore, when the ferromagnetic projectile at the initial launching position is launched, the bullet-moving assembly will synchronously move the next ferromagnetic projectile to the initial launching position, thereby realizing continuous feeding. Since the conductive properties of the ferromagnetic projectile itself are used to realize the conduction of the switch assembly during the feeding process, and then the action of the bullet-moving assembly is controlled to realize the synchronization of feeding and launching, there is no need to set up additional sensor-type elements for monitoring the position of the ferromagnetic projectile and the feeding situation, thereby simplifying the structure of the feeding mechanism, reducing the control difficulty, and improving the stability of automatic continuous feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a magnetoresistive launcher feeding mechanism provided by an embodiment of the present invention; Figure 2 A schematic diagram of the circuit connection of a magnetoresistive launcher feeding mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection structure of the switch assembly used in an embodiment of the present invention within the sliding ramp.

[0017] In the figure: 10, magazine; 11, shell; 111, bottom cover; 12, elastic push member; 121, elastic element; 122, bullet support plate; 20, bullet sliding ramp; 201, groove; 202, permanent magnet; 30, bullet ejection assembly; 31, drive motor; 32, rotating rudder; 40, magnetoresistive transmitter; 50, ferromagnetic projectile; 60, bullet ejection switch; 601, first electrode; 602, second electrode; 70, position control switch; 701, first pressure piece; 702, second pressure piece; 80, mode switch. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0020] Please also refer to Figures 1 to 3 The present invention now provides a magnetoresistive launcher feeding mechanism. The mechanism comprises a magazine 10, a bullet-sliding ramp 20, a bullet-moving assembly 30, and a switch assembly. The magazine 10 is connected to a magnetoresistive launcher 40 and has a bullet-discharging opening at its top. A plurality of ferromagnetic projectiles 50 are pressurized within the magazine 10, and the magazine 10 is used to sequentially push each ferromagnetic projectile 50 toward the bullet-discharging opening. The bullet-sliding ramp 20 is disposed within a launch tube of the magnetoresistive launcher 40 and forms an initial launch position. The bullet-moving assembly 30 is connected between the bullet-discharging opening and the bullet-sliding ramp 20 and is used to move the ferromagnetic projectile 50 located at the bullet-discharging opening to the initial launch position. The bullet-moving assembly 30 is connected to a power source of the magnetoresistive launcher 40 via a switch assembly to form a bullet-feeding circuit. The switch assembly comprises a first electrode 601 and a second electrode 602, which are electrically conductive to the first and second electrodes 601 and 602 at all times while the ferromagnetic projectile 50 is in the bullet-discharging opening and during its transition from the bullet-discharging opening to the initial launch position.

[0021] It should be noted that, in this embodiment, the bullet-sliding ramp 20 may be part of the launch tube of the magnetoresistive transmitter 40. To avoid interfering with the magnetic field of the coil of the magnetoresistive transmitter 40, the bullet-sliding ramp 20 is made of a polymer composite insulating material. The switch assembly may be one or more switches arranged in series, wherein the first electrode 601 and the second electrode 602 serve as the two contacts of one of the switches. In this embodiment, the bullet-moving assembly 30 may be a rotary drive, such as a motor, which drives the bullet-moving rudder to rotate and move the ferromagnetic projectile 50 located at the ejection port. The power of the rotary drive is derived from the power supply of the magnetoresistive transmitter 40. Of course, considering the high power supply voltage of the magnetoresistive transmitter 40, a voltage conversion chip may be provided to convert the high voltage into a low voltage to power the rotary drive. As for the magazine 10 used in this embodiment, a conventional firearm magazine 10 structure may be adopted. The ferromagnetic projectiles 50 are arranged in a row within the magazine 10. A spring built into the magazine 10 applies a thrust to the pressed ferromagnetic projectiles 50, thereby allowing each ferromagnetic projectile 50 to enter the ejection port in sequence under the elastic thrust.

[0022] The present embodiment provides a magnetoresistive launcher feeding mechanism. Compared with the prior art, when the ferromagnetic projectile 50 is pushed to the ejection port in the magazine 10, the conductivity of the ferromagnetic projectile 50 can be used to conduct the first electrode 601 and the second electrode 602. At this time, only the switch component needs to be closed to form a conductive feeding circuit between the ejection component 30 and the power supply of the magnetoresistive launcher 40, so that the ejection component 30 is operated to move the ferromagnetic projectile 50 at the ejection port to the initial firing position. The next ferromagnetic projectile 50 in the magazine 10 is pushed to the ejection port, and at the same time, the magnetoresistive launcher 40 launches the ferromagnetic projectile 50 at the initial firing position. Since the ferromagnetic projectile 50 is at the ejection port, the ferromagnetic projectile 50 is ejected. During the process of reaching the initial launching position, the first electrode 601 and the second electrode 602 are always kept conductive. Therefore, when the ferromagnetic projectile 50 at the initial launching position is launched, the bullet-moving assembly 30 synchronously moves the next ferromagnetic projectile 50 to the initial launching position, thereby realizing continuous bullet feeding. Since the conductive properties of the ferromagnetic projectile 50 itself are used to realize the conduction of the switch assembly during the bullet feeding process, and then the action of the bullet-moving assembly 30 is controlled to realize the synchronization of bullet feeding and launching, there is no need to set up additional sensor-type elements for monitoring the position of the ferromagnetic projectile 50 and the bullet feeding situation, thereby simplifying the structure of the bullet feeding mechanism, reducing the control difficulty, and improving the stability of automatic continuous bullet feeding.

[0023] In some embodiments, see Figure 2 and Figure 3 The switch assembly includes a flick switch 60 and a position control switch 70 arranged in series; wherein, the first electrode 601 and the second electrode 602 respectively form two contacts of the flick switch 60; the position control switch 70 is arranged on the sliding ramp 20 and is a normally closed switch. The position control switch 70 is used to disconnect under the pressure of the ferromagnetic projectile 50 reaching the initial launching position.

[0024] Here, continuous feeding and position control of the ferromagnetic projectile 50 in the bullet sliding ramp 20 are achieved through the cooperation of the bullet ejection switch 60 and the position control switch 70; specifically, as long as the magazine 10 is not empty, ferromagnetic projectiles 50 will be continuously pushed to the bullet outlet, so there will always be ferromagnetic projectiles 50 at the bullet outlet, that is, when the ferromagnetic projectiles 50 in the magazine 10 are not empty, the bullet ejection switch 60 can always be turned on and closed by the ferromagnetic projectiles 50. On this basis, since the position control switch 70 is a normally closed switch, when the magazine 10 is not empty and there is no ferromagnetic projectile 50 at the initial firing position, the bullet feeding circuit will be in a conducting state, thereby causing the bullet ejection assembly 30 to work and eject the ferromagnetic projectile 50 at the bullet outlet to the initial firing position. Once the ferromagnetic projectile is ejected, When 50 reaches the initial launching position, it will exert a counter-pressure effect on the position-controlled switch 70, thereby triggering the position-controlled switch 70 to disconnect and cut off the feeding electrical circuit. At this time, the bullet-moving assembly 30 stops running due to the power outage, so that the ferromagnetic projectile 50 remains at the initial launching position. When the magnetic resistance launcher 40 launches the ferromagnetic projectile 50 at the initial launching position, the position-controlled switch 70 loses its counter-pressure effect and resets to close, so that the bullet-moving assembly 30 starts running again and the next ferromagnetic projectile 50 is delivered. Accurate feeding can be achieved without the need for additional sensors to monitor the feeding position, and it can ensure that the ferromagnetic projectile 50 at the initial launching position is always in a firing ready state. Not only is the structure simple and easy to control, but it can also improve the stability of continuous automatic feeding.

[0025] Some possible implementations, such as Figure 3 As shown, the above-mentioned first electrode 601 is arranged on the inner wall of the sliding ramp 20 along the extension direction of the sliding ramp 20, and the second electrode 602 is arranged between the sliding ramp 20 and the discharge port; wherein, the front end of the ferromagnetic projectile 50 located at the discharge port contacts the inner wall of the sliding ramp 20 to conduct the first electrode 601; the rear end of the ferromagnetic projectile 50 that reaches the initial launching position is exposed from the sliding ramp 20 and presses against the front end of the ferromagnetic projectile 50 located at the discharge port, and the ferromagnetic projectile 50 is always in contact with the second electrode 602 during the process of moving from the discharge port to the initial launching position.

[0026] The ferromagnetic projectile 50 is always in contact with the inner wall of the sliding ramp 20 at the bullet discharge port, the initial launch position, and the movement from the bullet discharge port to the initial launch position, and the first electrode 601 is set through the sliding ramp 20, so the ferromagnetic projectile 50 is always in a conductive state with the first electrode 601, and the second electrode 602 is set near the rear end of the sliding ramp 20 and also maintains conductivity with the ferromagnetic projectile 50. Therefore, as long as there are ferromagnetic projectiles 50 that have not been launched, the bullet ejection switch 60 will always be in a closed state. When the ferromagnetic projectiles 50 in the magazine 10 are completely launched, the first electrode 601 and the second electrode 602 cannot be conducted, so the bullet ejection switch 60 will be disconnected, thereby preventing the bullet ejection assembly 30 from idling.

[0027] In addition, in this embodiment, since the rear end of the ferromagnetic projectile 50 at the initial position is pressed against the front end of the ferromagnetic projectile 50 at the discharge port, the pushing force of the magazine 10 on the ferromagnetic projectile 50 at the discharge port can be transmitted to the ferromagnetic projectile 50 at the initial launching position, thereby increasing the contact friction between the ferromagnetic projectile 50 at the initial launching position and the inner wall of the sliding ramp 20, thereby improving the staying position accuracy and stability of the ferromagnetic projectile 50 at the initial launching position.

[0028] Specifically, the ferromagnetic projectile 50 can be made of a cylindrical ferromagnetic material with a diameter of 18.1 mm and a length of 30 mm. The ejection stroke of the ferromagnetic projectile 50 by the ejection assembly 30 is 25 mm, so that the ferromagnetic projectile 50 can be pressed against the front end of the next ferromagnetic projectile 50 pushed to the ejection port by about 5 mm after it reaches the initial launching position from the ejection port.

[0029] As an optional implementation of the position control switch 70, please refer to Figure 3 The position-controlled switch 70 includes a first pressing piece 701 and a second pressing piece 702, which respectively form two contacts of the position-controlled switch 70; the first pressing piece 701 and the second pressing piece 702 are both recessed and connected to the groove 201 opened on the inner wall of the sliding ramp 20; wherein, one end of the first pressing piece 701 extends out of the groove 201, and when the ferromagnetic projectile 50 reaches the initial launching position, it presses against the first pressing piece 701 to separate the first pressing piece 701 from the second pressing piece 702.

[0030] The first pressing piece 701 and the second pressing piece 702 maintain elastic resistance in the initial state to form a normally closed state of the position control switch 70. When the ferromagnetic projectile 50 moves to the initial launch position on the sliding ramp 20, the ferromagnetic projectile 50 presses the end of the first pressing piece 701 extending out of the groove 201, thereby causing the first compression bending deformation to separate from the second pressing piece 702, thereby cutting off the position control switch 70. Since the position control switch 70 is connected in series to the bullet supply circuit, after the ferromagnetic projectile 50 reaches the initial launch position, due to the position control switch 70 The disconnection cuts off the bullet feeding circuit, thereby powering off and stopping the bullet ejecting assembly 30; after the magnetoresistive launcher 40 launches the ferromagnetic projectile 50 at the initial launching position, the first pressing piece 701 loses its resistance and rebounds to re-contact and conduct with the second pressing piece 702. At this time, the position control switch 70 returns to the closed state and the bullet ejecting assembly 30 is powered on and starts running again, thereby sending the next ferromagnetic projectile 50 to the initial launching position, thereby achieving coordination between the launching and feeding of the ferromagnetic projectile 50, with simple control and high stability.

[0031] It should be noted that if Figure 2 In this embodiment, the switch assembly further includes a mode switch 80 connected in series to the feed circuit. The mode switch 80 serves as the firing mode selector for the magnetoresistive transmitter 40. This mode selector is shared with the firing mode selector of the magnetoresistive transmitter 40. Typically, the firing mode selector of the magnetoresistive transmitter 40 includes "safe" (preventing firing upon pulling the trigger) and "fire" (firing upon pulling the trigger). The "fire" position of some magnetoresistive transmitters 40 can also be divided into "single shot" and "continuous shot." Because the firing mode selector also serves as a switch assembly connected in series to the feed circuit, when the mode switch 80 is in the "safe" position, it is disconnected, the feed circuit is in a terminal state, and the ejection assembly 30 is inoperable, thus preventing accidental triggering and injury. When the mode switch 80 is in the "fire" position, it is closed, allowing firing upon pulling the trigger. This simplifies the control method and improves operational safety.

[0032] In some embodiments, such as Figure 3As shown, in order to improve the accuracy of the ferromagnetic projectile 50 reaching the initial launch position, at least one permanent magnet 202 is embedded in the inner wall of the sliding ramp 20. The permanent magnet 202 is used to adsorb and fix the ferromagnetic projectile 50 that has reached the initial launch position. Since the permanent magnet 202 has a magnetic force that can adsorb the ferromagnetic projectile 50, the provision of the permanent magnet 202 can prevent the ferromagnetic projectile 50 from continuing to move under the action of inertia and becoming misaligned with the initial launch position when it moves to the initial launch position, thereby improving the position accuracy of the ferromagnetic projectile 50 moving to the initial launch position; in addition, the adsorption force of the permanent magnet 202 on the ferromagnetic projectile 50 can work together with the pressure of the ferromagnetic projectile 50 at the projectile exit to constrain the ferromagnetic projectile 50 at the initial launch position, thereby improving the stability of the ferromagnetic projectile 50 at the initial launch position.

[0033] For some examples, see Figure 1 The magazine 10 includes a housing 11 and an elastic pusher 12. The housing 11 is used to accommodate ferromagnetic projectiles 50 and has a discharge port at the top. The elastic pusher 12 is provided on the inner bottom wall of the housing 11 and elastically pushes the ferromagnetic projectiles 50 upward. The elastic pusher 12 can continuously maintain a pushing force on the ferromagnetic projectiles 50 in the housing 11, thereby enabling the ferromagnetic projectiles 50 to move sequentially toward the discharge port, resulting in a simple and stable structure.

[0034] Specifically, see Figure 1 In this embodiment, the bottom end of the housing 11 is provided with an openable bottom cover 111, and the elastic push member 12 is provided on the bottom cover 111. The bottom cover 111 facilitates the loading of the ferromagnetic projectiles 50. After the ferromagnetic projectiles 50 are loaded, the bottom cover 111 is closed, and the elastic push member 12 applies an elastic push force to the ferromagnetic projectiles 50 toward the ejection port, resulting in a simple structure and easy operation.

[0035] Alternatively, as Figure 1 As shown, in this embodiment, the elastic pusher 12 includes an elastic element 121 and a spring plate 122. One end of the elastic element 121 is connected to the bottom cover 111, and the other end is connected to the spring plate 122. The elastic element 121 can be a spring, and the spring plate 122 can be made of a polymer composite material. The spring plate 122 can increase the contact area with the ferromagnetic projectile 50, thereby improving the force stability of the ferromagnetic projectile 50.

[0036] For some possible implementations, see Figure 1The bullet ejection assembly 30 includes a drive motor 31 and a rotating rudder 32; wherein the drive motor 31 is electrically connected to a power source, and the rotating rudder 32 is connected to the output end of the drive motor 31. The rotating rudder 32 is used to rotate and eject the ferromagnetic projectile 50 located at the bullet ejection port under the drive of the drive motor 31. The drive motor 31 can specifically be a micro DC reduction motor. When the bullet feeding circuit is turned on, the drive motor 31 drives the rotating rudder 32 to rotate, thereby ejecting the ferromagnetic projectile 50 at the bullet ejection port to the initial firing position. The structure is simple and stable. Here, the rotating rudder 32 can have the same structure as the automatic feeding rudder of a conventional firearm, and its material is selected from a polymer insulating composite material to avoid leakage of the bullet feeding circuit through the rotating rudder 32.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnetoresistive launcher feeding mechanism, characterized in that: It includes a magazine, a bullet sliding ramp, a bullet ejection assembly and a switch assembly; the magazine is connected to a magnetoresistive launcher and has a bullet discharge port at the top, a plurality of ferromagnetic projectiles are pressurized in the magazine, and the magazine is used to push each of the ferromagnetic projectiles toward the bullet discharge port in sequence; the bullet sliding ramp is arranged in a launch tube of the magnetoresistive launcher and forms an initial launch position; the bullet ejection assembly is connected between the bullet discharge port and the bullet sliding ramp and is used to eject the ferromagnetic projectile located at the bullet discharge port to the initial launch position; the bullet ejection assembly is connected to a power supply of the magnetoresistive launcher through the switch assembly to form a bullet feeding circuit; wherein, the switch assembly has a first electrode and a second electrode, and the first electrode and the second electrode can always be conductive when the ferromagnetic projectile is in the bullet discharge port and reaches the initial launch position from the bullet discharge port.

2. A magnetoresistive launcher feeding mechanism as claimed in claim 1, characterized in that: The switch assembly includes a flick switch and a position-controlled switch arranged in series; wherein, the first electrode and the second electrode respectively form two contacts of the flick switch; the position-controlled switch is arranged on the sliding ramp and is a normally closed switch, and the position-controlled switch is used to disconnect under the pressure of the ferromagnetic projectile reaching the initial launching position.

3. A magnetoresistive launcher feeding mechanism as claimed in claim 2, characterized in that: The first electrode is arranged on the inner wall of the sliding ramp along the extension direction of the sliding ramp, and the second electrode is arranged between the sliding ramp and the discharge port; wherein, the front end of the ferromagnetic projectile located at the discharge port contacts the inner wall of the sliding ramp to conduct the first electrode; the rear end of the ferromagnetic projectile that reaches the initial launching position is exposed from the sliding ramp and presses against the front end of the ferromagnetic projectile located at the discharge port, and the ferromagnetic projectile is always in contact with the second electrode during the process of moving from the discharge port to the initial launching position.

4. A magnetoresistive launcher feeding mechanism as claimed in claim 2, characterized in that: The position-controlled switch includes a first pressing piece and a second pressing piece, and the first pressing piece and the second pressing piece respectively form two contacts of the position-controlled switch; the first pressing piece and the second pressing piece are both recessed and connected to a groove opened on the inner wall of the sliding ramp; wherein, one end of the first pressing piece extends out of the groove, and when the ferromagnetic projectile reaches the initial launching position, it presses against the first pressing piece to separate the first pressing piece from the second pressing piece.

5. A magnetoresistive launcher feeding mechanism as claimed in claim 2, characterized in that: The switch assembly also includes a mode switch connected in series to the bullet feeding circuit, and the mode switch is a shooting mode selection switch of the magnetoresistive transmitter.

6. A magnetoresistive launcher feeding mechanism as claimed in claim 2, characterized in that: At least one permanent magnet is embedded in the inner wall of the sliding ramp, and the permanent magnet is used to adsorb and fix the ferromagnetic projectile that has arrived at the initial launching position.

7. The magnetoresistive launcher feeding mechanism according to claim 1, characterized in that: The magazine includes a shell and an elastic pushing member; the interior of the shell is used to accommodate the ferromagnetic projectile and the top has the bullet outlet, and the elastic pushing member is arranged on the inner bottom wall of the shell and elastically pushes the ferromagnetic projectile upward.

8. A magnetoresistive launcher feeding mechanism as claimed in claim 7, characterized in that: The bottom end of the shell is provided with an openable bottom cover, and the elastic pushing member is provided on the bottom cover.

9. A magnetoresistive launcher feeding mechanism as claimed in claim 8, characterized in that: The elastic pushing member includes an elastic element and a spring-supporting plate; one end of the elastic element is connected to the bottom cover, and the other end is connected to the spring-supporting plate.

10. A magnetoresistive launcher feeding mechanism according to any one of claims 1 to 9, characterized in that: The bullet ejection assembly includes a driving motor and a rotating rudder; wherein, the driving motor is electrically connected to the power supply, and the rotating rudder is connected to the output end of the driving motor, and the rotating rudder is used to rotate and eject the ferromagnetic projectile located at the bullet outlet under the drive of the driving motor.

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