CN113540904A

CN113540904A - Rifle charges with safety alarm

Info

Publication number: CN113540904A
Application number: CN202110740348.4A
Authority: CN
Inventors: 孔宪明
Original assignee: Individual
Current assignee: Consolida Shanghai Automobile Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-22
Anticipated expiration: 2041-06-30
Also published as: CN113540904B

Abstract

The invention relates to the technical field of strategic emerging industries and discloses a charging gun with a safety alarm, which comprises a charging gun main body and a charging connector, wherein a charging wire and an alarm wire are connected in the charging gun main body in a communicated manner, a positioning groove is formed in the bottom of the charging connector, the charging connector is fixedly connected with the left end of the charging gun main body, a transition circuit is fixedly connected to the center of the top of the charging gun main body, a stepped groove I is formed in one end of the top of the charging gun main body, and a pressure-receiving block is movably sleeved in the stepped groove I. According to the invention, through the designed quick-pressing and lifting rod, the charging circuit can be connected only after the charging gun is completely inserted into the automobile charging interface, and when the automobile moves and the charging gun is not taken down, and the charging gun and the automobile charging interface have a gap, the charging circuit can be disconnected, so that the problems of short circuit burnout and circuit fault of the automobile caused by continuous current output of the circuit are avoided.

Description

Rifle charges with safety alarm

Technical Field

The invention relates to the technical field of strategic emerging industries, in particular to a charging gun with a safety alarm.

Background

Along with the popularization of new energy automobiles, charging equipment is also greatly paved, but the safety problem of the charging equipment is gradually increased.

Some car owners can forget to take off the charging gun inserted in the charging port of the car carelessly and start the car, if the car still continues to charge, the charging port of the car rubs with the charging gun in the moving process of the car, the problem that short circuit can occur to cause burning of charging equipment and circuit fault of the car is solved, even if the charging is completed, the car can break the charging gun in the moving process, so that electric wires on the charging gun are exposed, the electric shock injury can be easily caused to pedestrians passing through the charging pile, meanwhile, the charging gun inserted in the charging port of the car can pull one electric wire, in the high-speed driving process of the car, the pulled electric wires can easily hit objects close to the car, car accidents can occur in serious cases, and the safety of public society is damaged.

Disclosure of Invention

Aiming at the defects of the prior charging gun in the background technology in the using process, the invention provides the charging gun with the safety alarm, which has the advantages of automatic power off, pulled automatic alarm and pulled circuit power off, and solves the problems that the automobile is started when the charging gun is not taken down to cause short circuit and automobile circuit failure, and the charging gun is pulled to cause motor damage and harm to public social safety in the background technology.

The invention provides the following technical scheme: a charging gun with a safety alarm comprises a charging gun body and a charging connector, wherein a charging wire and an alarm wire are connected in the charging gun body in a switch-on mode, a positioning groove is formed in the bottom of the charging connector, the charging connector is fixedly connected to the left end of the charging gun body, a transition circuit is fixedly connected to the center of the top of the charging gun body, a stepped groove I is formed in one end of the top of the charging gun body, a pressed block is movably sleeved in the stepped groove I, a conductive head is fixedly connected to one end, close to the center of the charging gun body, of the pressed block, an output head and an L-shaped limiting block are fixedly connected to the bottom of the same end of the pressed block, a receiving circuit is fixedly connected to the top of the charging gun body, a current shunt is fixedly connected to the center of the top of the receiving circuit, an electromagnet is fixedly connected to one end of the current shunt, and a pressing key is hinged to the center of the bottom of the charging gun body, the utility model discloses a rifle, including rifle main part, charging gun main part, stopper, charging gun main part, ladder groove II, sliding tray and reciprocating groove, the extrusion slider has been cup jointed to the ladder inslot II activity, the joint has passive slider in the sliding tray, the one end top fixedly connected with connecting rod of passive slider, the one end that the connecting rod deviates from passive slider is equipped with the transmission joint, the constant head tank has been seted up to the bottom of charging the joint.

Preferably, the interface has been seted up at transition circuit's top, transition circuit's bottom and the bottom of the electric wire that charges are located the coplanar, the central line of conductive head and transition circuit's central line coincidence, the diameter value of conductive head is the same with the interface diameter value size that transition circuit seted up, the bottom one end laminating of L type stopper is in transition circuit's bottom, ladder groove I's center is close to the one end fixedly connected with spring of conductive head, the other end fixed connection of a spring is on receiving the briquetting.

Preferably, the top of the receiving circuit is close to the conductive head, the top of the receiving circuit is provided with a groove, the diameter value of the groove is the same as that of the output head, the receiving circuit is in a reverse L shape, the bottom of the receiving circuit is fixedly connected with the charging head, and the bottom of the receiving circuit is fixedly connected with a power-off device at a position close to the charging head.

Preferably, the bottom center of the rifle main part that charges fixedly connected with handle, the one end bottom fixedly connected with spring No. two of pressing the key, the other end of spring No. two and the bottom fixed connection of the rifle main part that charges.

Preferably, the lifting rod is T-shaped, the length of the current connector is the same as the distance between the transition circuit and the charging wire, and the lifting rod penetrates through the center of the limiting block.

Preferably, the alarm is located the right-hand member of stopper, seted up spacing groove II in the alarm, the alarm electric wire runs through the alarm and communicates with spacing groove II, the alarm electric wire is the spill with spacing groove II's intercommunication department.

Preferably, spacing groove I has been seted up to the bottom of stopper, spacing groove I does not contact with the lifting rod, set up the activity chamber with spacing groove I intercommunication in the outstanding piece, the activity chamber deviates from No. three springs of one end fixedly connected with of stopper, the other end and the connecting rod fixed connection of No. three springs.

Preferably, sliding tray and ladder groove II intercommunication, reciprocating groove and sliding tray intercommunication, the extrusion slider is just to the one end fixedly connected with magnet of rifle main part inner chamber that charges, magnet is the mutual exclusion relation with the electro-magnet, the central line of extrusion slider coincides with the central line of electro-magnet, the one end fixedly connected with No. four springs of magnet are kept away from to ladder groove II, the other end fixed connection of No. four springs is on the extrusion slider.

Preferably, the top joint of passive slider is in ladder groove II, the connecting rod is through reciprocating groove, activity chamber, spacing groove I to spacing groove II in, the answer spring of the bottom fixedly connected with equipartition in reciprocating groove, the top and the connecting rod fixed connection of answer spring.

Preferably, the diameter value of the positioning groove is the same as that of the passive sliding block.

The invention has the following beneficial effects:

1. according to the invention, through the designed quick-pressing and lifting rod, the charging circuit can be connected only after the charging gun is completely inserted into the automobile charging interface, and when the automobile moves and the charging gun is not taken down, and the charging gun and the automobile charging interface have a gap, the charging circuit can be disconnected, so that the problems of short circuit burnout and circuit fault of the automobile caused by continuous current output of the circuit are avoided.

2. According to the invention, through the designed electromagnet, the extrusion sliding block, the passive sliding block and the alarm, when the charging gun is charged, the electromagnet can push the extrusion sliding block to press the passive sliding block, so that the passive sliding block is clamped into the positioning groove on the automobile charging interface, and the automobile charging interface can drive the passive sliding block to displace in the process that the charging gun moves without taking off the automobile, so that the alarm circuit is switched on, the alarm can timely give an alarm to remind the automobile owner, and the situation that the charging gun is pulled apart due to the fact that the automobile continues to run is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a charging interface according to the present invention;

FIG. 3 is a schematic diagram illustrating a state where the charging connector is inserted into the charging interface according to the present invention;

FIG. 4 is a schematic diagram illustrating a state in which the charging head is pulled;

FIG. 5 is an enlarged view of a portion of the structure A shown in FIG. 1;

FIG. 6 is an enlarged view of a portion of the structure at C in FIG. 4;

FIG. 7 is an enlarged view of a portion of the structure B shown in FIG. 1;

fig. 8 is a partially enlarged view of the structure at D in fig. 4.

In the figure: 1. a charging gun body; 2. a charging wire; 3. an alarm wire; 4. a stepped groove I; 5. a transition circuit; 6. a pressed block; 601. a conductive head; 7. an output head; 8. an L-shaped limiting block; 9. a first spring; 10. a receiving circuit; 11. a charging head; 12. a power-off device; 13. current shunting; 14. an electromagnet; 15. a handle; 16. pressing a key; 17. a second spring; 18. lifting the rod; 181. a current connection head; 19. A limiting block; 191. a limiting groove I; 20. a protruding block; 201. a movable cavity; 202. a third spring; 21. A step groove II; 22. a sliding groove; 23. a reciprocating groove; 24. extruding the slide block; 241. a magnet; 25. a fourth spring; 26. a passive slider; 27. a connecting rod; 271. a transfer head; 28. a return spring; 29. an alarm; 291. a limiting groove II; 30. a charging interface; 31. and (6) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a charging gun with a safety alarm includes a charging gun body 1 and a charging interface 30, a charging wire 2 and an alarm wire 3 are connected in the charging gun body 1, a charging head 11 is fixedly connected to the left end of the charging gun body 1, a transition circuit 5 is fixedly connected to the center of the top of the charging gun body 1, an interface is disposed on the top of the transition circuit 5, the bottom end of the transition circuit 5 and the bottom end of the charging wire 2 are located in the same plane, so that after the L-shaped limiting block 8 limits the return of the lifting rod 18, the current connector 181 can be located at the opening of the transition circuit 5 and the charging wire 2, so that the charging circuit is connected, a stepped groove I4 is disposed at one end of the top of the charging gun body 1, a pressed block 6 is movably sleeved in the stepped groove I4, a conductive head 601 is fixedly connected to one end of the pressed block 6 close to the center of the charging gun body 1, the center line of the conductive head 601 coincides with the center line of the transition circuit 5, the diameter value of the conductive head 601 is the same as the diameter value of the interface formed by the transition circuit 5, after the charging head 11 is inserted into the charging interface 30, the pressed block 6 can be extruded and contracted into the stepped groove I4, so that the conductive head 601 can be clamped into the interface formed by the transition circuit 5, thereby ensuring the connection of the charging circuit, the bottom of the same end of the pressed block 6 is fixedly connected with the output head 7 and the L-shaped limiting block 8, one end of the bottom of the L-shaped limiting block 8 is attached to the bottom end of the transition circuit 5, when the pressed block 6 is contracted into the stepped groove I4, the L-shaped limiting block 8 can synchronously move and make the bottom end be positioned on the falling line of the lifting rod 18, thereby the L-shaped limiting block 8 limits the position of the lifting rod 18, one end of the center of the stepped groove I4 close to the conductive head 601 is fixedly connected with the first spring 9, the other end of the first spring 9 is fixedly connected to the pressed block 6, when the pressed block 6 is contracted into the stepped groove I4, the first spring 9 can be compressed, so that after the charging connector 11 and the charging interface 13 are separated, the first spring 9 can synchronously drive the pressed block 6 to rebound, and a charging circuit is quickly disconnected.

The top of the charging gun main body 1 is fixedly connected with a receiving circuit 10, the top of the receiving circuit 10 is close to the conductive head 601, the top of the receiving circuit 10 is provided with a groove, the diameter value of the groove is the same as that of the output head 7, when the pressed block 6 is retracted into the stepped groove I4, the output head 7 can be clamped into the receiving circuit 10, so that the receiving circuit 10 is connected with a charging circuit, the receiving circuit 10 is in a reverse L shape, the bottom of the receiving circuit 10 is fixedly connected with the charging head 11, the position of the bottom of the receiving circuit 10, which is close to the charging head 11, is fixedly connected with a power-off device 12, after the automobile is charged, the power-off device 12 can cut off the current supply of the charging head 11, and meanwhile, the current shunt 13 is not influenced to continuously obtain current, the center of the top of the receiving circuit 10 is fixedly connected with a current shunt 13, and one end of the current shunt 13 is fixedly connected with an electromagnet 14, the electromagnet 14 is enabled to obtain current after the charging circuit is switched on, so that the electromagnet 14 pushes the pressing slider 24 to displace.

The bottom center of the charging gun body 1 is fixedly connected with a handle 15, the bottom center of the charging gun body 1 is hinged with a pressing key 16, the bottom of one end of the pressing key 16 is fixedly connected with a second spring 17, the other end of the second spring 17 is fixedly connected with the bottom of the charging gun body 1, the second spring 17 controls the return action of the pressing key 16, the center of the pressing key 16 is hinged with a lifting rod 18, the lifting rod 18 is T-shaped, the top of the lifting rod 18 is fixedly connected with a current connector 181, the length value of the current connector 181 is the same as the distance value between the transition circuit 5 and the charging wire 2, an L-shaped limiting block 8 limits the lifting rod 18 to return, the current connector 181 can be just positioned at the opening of the transition circuit 5 and the charging wire 2 under the control of the second spring 17, so as to connect the charging circuit, one side of the bottom of the inner cavity of the charging gun body 1 is fixedly connected with a limiting block 19 and an alarm 29, the alarm 29 is positioned at the right end of the limit block 19, a limit groove II291 is arranged in the alarm 29, the alarm wire 3 penetrates through the alarm 29 and is communicated with the limit groove II291, the communication position of the alarm wire 3 and the limit groove II291 is concave, so that the charging gun is not taken down, when the automobile is started, the connecting rod 27 moves under the action of pulling force, the transmission head 271 can move in the groove of the alarm wire 3, the alarm 29 is electrified to make sound, the lifting rod 18 penetrates through the center of the limit block 19, the lifting rod 18 is limited by the limit block 19 and can only do reciprocating motion up and down, the bottom of the limit block 19 is provided with a limit groove I191, the limit groove I191 is not contacted with the lifting rod 18, the possibility of displacement failure caused by the contact of the connecting rod 27 and the lifting rod 18 is avoided, the limit block 19 is fixedly connected with a protruding block 20 at the bottom of one end of the charging head 11, a movable cavity 201 communicated with the limit groove I191 is arranged in the protruding block 20, activity chamber 201 deviates from No. three springs 202 of one end fixedly connected with of stopper 19, No. three springs 202's the other end and connecting rod 27 fixed connection, make the rifle that charges not take off, when the car just starts, connecting rod 27 receives under the circumstances that the pulling force removed, No. three springs 202 can compress, and enable connecting rod 27 when will taking off the rifle that charges and kick-back, thereby make passive slider 26 kick-back to original position, and can pop out constant head tank 31 under the effect of subsequent answer spring 28, avoid the condition that the rifle that charges can't take off.

One side of the bottom of the charging head 11, which is opposite to the inner cavity of the charging gun main body 1, is provided with a stepped groove II21, a sliding groove 22 and a reciprocating groove 23, the sliding groove 22 is communicated with a stepped groove II21, the reciprocating groove 23 is communicated with the sliding groove 22, so that the passive sliding block 26 can be retracted into the stepped groove II21 under normal conditions, an extrusion sliding block 24 is movably sleeved in the stepped groove II21, one end of the extrusion sliding block 24, which is opposite to the inner cavity of the charging gun main body 1, is fixedly connected with a magnet 241, the magnet 241 and the electromagnet 14 are in mutual exclusion relation, the central line of the extrusion sliding block 24 is superposed with the central line of the electromagnet 14, so that the electromagnet 14 can push the extrusion sliding block 24 to move through the magnet 241 under the electrified condition, finally, the driven sliding block 26 is pushed to be clamped into the positioning groove 31, one end, far away from the magnet 241, of the stepped groove II21 is fixedly connected with a fourth spring 25, the other end of the fourth spring 25 is fixedly connected to the extrusion sliding block 24, and the fourth spring 25 can drive the extrusion sliding block 24 to rebound.

The joint has passive slider 26 in the sliding tray 22, the top joint of passive slider 26 is in ladder groove II21, make under the normal condition, passive slider 26 can not obstruct the head 11 that charges and get into or leave the interface 30 that charges, the one end top fixedly connected with connecting rod 27 of passive slider 26, connecting rod 27 is through reciprocating groove 23, activity chamber 201, spacing groove I191 to spacing groove II291 are interior, the one end that connecting rod 27 is located spacing groove II291 is equipped with the transmission head 271, make the rifle that charges not take off, when the car was just started, the displacement of passive slider 26 can drive connecting rod 27 synchronous displacement, thereby make transmission head 271 switch-on alarm circuit. The return spring 28 of the bottom fixedly connected with equipartition of reciprocal groove 23, the top and the connecting rod 27 fixed connection of return spring 28 make passive slider 26 under the circumstances of charging circuit disconnection, can in the card income ladder groove II21 once more under the effect of return spring 28, avoid it not reply lead to the circumstances that the head 11 that charges can not take off.

Constant head tank 31 has been seted up to the bottom of interface 30 that charges, constant head tank 31's diameter value is the same with passive slider 26's diameter value size, make charging joint 11 insert the interface 30 that charges, after the charging circuit switch-on, passive slider 26 can be crowded into constant head tank 31 in, when the rifle that charges does not take off, when the car just starts, constant head tank 31 can restrict passive slider 26's displacement, thereby make passive slider 26 remove in sliding tray 22, make passive slider 26 move with connecting rod 27 in step, guaranteed the possibility that siren 29 sent the police dispatch newspaper in step.

The use method (working principle) of the invention is as follows:

firstly, the charging gun body 1 is taken down from the charging pile, then the handle 15 is held by hand, the pressing key 16 is pressed, the lifting rod 18 is lifted, the charging head 11 is inserted into the charging interface 30 at the moment, the handle 15 is loosened, the pressed block 6 is completely pressed into the stepped groove I4 by the charging interface 30 at the moment, the conductive head 601 is inserted into the transition circuit 5, the output head 7 is inserted into the receiving circuit 10, the L-shaped limiting block 8 blocks the lifting rod 18 from falling, so that the current connecting head 181 is connected with the circuit of the charging wire 2 and the transition circuit 5, and then the owner starts to input current to the charging gun through the code scanning;

then, the current supplies current to the charging head 11 through the charging wire 2, the current connector 181, the transition circuit 5, the conductive connector 601, the output connector 7 and the receiving circuit 10, the automobile starts charging, at this time, the current shunt 13 obtains current, the electromagnet 14 repels the extrusion slide block 24, the extrusion slide block 24 extrudes the passive slide block 26 to be clamped into the positioning slot 31, when the charging is not completed and the automobile owner forgets to take off the charging gun to start the automobile, the charging head 11 is separated from the charging interface 30, the pressed block 6 is gradually recovered, when the conductive connector 601 leaves the transition circuit 5, the charging circuit is powered off, simultaneously, the separation of the charging head 11 and the charging interface 30 enables the passive slide block 26 to move in the direction away from the electromagnet 14, the passive slide block 26 drives the transmission head 271 to be connected with the alarm wire 3 through the connecting rod 27, the alarm 29 gives an alarm, and simultaneously, the power-off device 12 enables the charging head 11 not to obtain current any more after the charging is completed, at the moment, the current still exists in the receiving circuit 10, and when the automobile owner forgets to take off the charging gun to start the automobile, all parts in the charging gun repeat the actions to finish the power-off alarm;

finally, after charging is completed, the vehicle owner only needs to hold the handle 15 and press the press key 16 to lift the lifting rod 18 to break the charging circuit, power off the electromagnet 14, recover the extrusion sliding block 24, separate the driven sliding block 26 from the positioning groove 31 to recover, and then take down the charging gun body 1 and replace the charging pile.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rifle that charges with safety alarm, includes rifle main part (1) and the interface (30) that charges, its characterized in that: the charging gun comprises a charging gun body (1), a charging wire (2) and an alarm wire (3) are connected in the charging gun body (1), a positioning groove (31) is formed in the bottom of a charging interface (30), a charging head (11) is fixedly connected to the left end of the charging gun body (1), a transition circuit (5) is fixedly connected to the center of the top of the charging gun body (1), a stepped groove I (4) is formed in one end of the top of the charging gun body (1), a pressed block (6) is sleeved in the stepped groove I (4), one end of the pressed block (6) close to the center of the charging gun body (1) is fixedly connected with a conductive head (601), the same end bottom of the pressed block (6) is fixedly connected with an output head (7) and an L-shaped limiting block (8), a receiving circuit (10) is fixedly connected to the top of the charging gun body (1), and a shunt circuit (13) is fixedly connected with the current, the electric current shunt circuit (13) is fixedly connected with an electromagnet (14), the bottom center of the charging gun main body (1) is hinged with a pressing key (16), the center of the pressing key (16) is hinged with a lifting rod (18), the top of the lifting rod (18) is fixedly connected with a current collecting head (181), one side of the bottom of an inner cavity of the charging gun main body (1) is fixedly connected with a limiting block (19) and an alarm (29), one side of the bottom of the charging head (11) just opposite to the inner cavity of the charging gun main body (1) is provided with a stepped groove II (21), a sliding groove (22) and a reciprocating groove (23), an extrusion sliding block (24) is movably sleeved in the stepped groove II (21), a passive sliding block (26) is clamped in the sliding groove (22), one top of the passive sliding block (26) is fixedly connected with a connecting rod (27), one end of the connecting rod (27) departing from the passive sliding block (26) is provided with a transmission head (271), and a positioning groove (31) is formed in the bottom of the charging interface (30).

2. The charging gun with safety alarm as claimed in claim 1, wherein: the interface has been seted up at the top of transition circuit (5), the bottom of transition circuit (5) and the bottom of charging electric wire (2) are located the coplanar, the central line of conducting head (601) and the coincidence of the central line of transition circuit (5), the diameter value of conducting head (601) is the same with the interface diameter value size that transition circuit (5) were seted up, the bottom one end laminating of L type stopper (8) is in the bottom of transition circuit (5), the center of ladder groove I (4) is close to one end fixedly connected with spring (9) of conducting head (601), the other end fixed connection of spring (9) is on compressing piece (6).

3. The charging gun with safety alarm as claimed in claim 1, wherein: the top of receiving circuit (10) is close to conductive head (601), the top of receiving circuit (10) is seted up flutedly, the diameter value of recess is the same with the diameter value size of output head (7), receiving circuit (10) are reverse L shape, the bottom and the first (11) fixed connection that charges of receiving circuit (10), the position fixedly connected with outage device (12) that the bottom of receiving circuit (10) is close to the first (11) that charges.

4. The charging gun with safety alarm as claimed in claim 1, wherein: the rifle body that charges's bottom center fixedly connected with handle (15), press the one end bottom fixedly connected with No. two spring (17) of key (16), the other end of No. two spring (17) and the bottom fixed connection of rifle body that charges (1).

5. The charging gun with safety alarm as claimed in claim 1, wherein: the lifting rod (18) is T-shaped, the length value of the current connector (181) is the same as the distance value between the transition circuit (5) and the charging wire (2), and the lifting rod (18) penetrates through the center of the limiting block (19).

6. The charging gun with safety alarm as claimed in claim 1, wherein: the alarm (29) is located the right end of stopper (19), set up spacing groove II (291) in alarm (29), alarm electric wire (3) run through alarm (29) and with spacing groove II (291) intercommunication, alarm electric wire (3) are the spill with the intercommunication department of spacing groove II (291).

7. The charging gun with safety alarm as claimed in claim 1, wherein: the bottom of the limiting block (19) is provided with a limiting groove I (191), the limiting groove I (191) is not in contact with the lifting rod (18), the limiting block (19) is opposite to a protruding block (20) fixedly connected to the bottom of one end of the charging head (11), a movable cavity (201) communicated with the limiting groove I (191) is formed in the protruding block (20), one end of the movable cavity (201) departing from the limiting block (19) is fixedly connected with a third spring (202), and the other end of the third spring (202) is fixedly connected with the connecting rod (27).

8. The charging gun with safety alarm as claimed in claim 1, wherein: sliding tray (22) and ladder groove II (21) intercommunication, reciprocating groove (23) and sliding tray (22) intercommunication, extrusion slider (24) just to the one end fixedly connected with magnet (241) of charging rifle main part (1) inner chamber, magnet (241) are the mutual exclusion relation with electro-magnet (14), the central line of extrusion slider (24) coincides with the central line of electro-magnet (14), four springs (25) of one end fixedly connected with of magnet (241) are kept away from in ladder groove II (21), the other end fixed connection of four springs (25) is on extrusion slider (24).

9. The charging gun with safety alarm as claimed in claim 1, wherein: the top joint of passive slider (26) is in ladder groove II (21), connecting rod (27) are through reciprocating groove (23), activity chamber (201), spacing groove I (191) to spacing groove II (291) in, return spring (28) of the bottom fixedly connected with equipartition of reciprocating groove (23), the top and connecting rod (27) fixed connection of return spring (28).

10. The charging gun with safety alarm as claimed in claim 1, wherein: the diameter value of the positioning groove (31) is the same as that of the passive sliding block (26).