Charging gun capable of being unlocked in emergency

Abstract

The charging gun comprises a gun shell and a mechanical lock hook, an installation cavity is formed in the gun shell, the mechanical lock hook comprises a connecting strip, a hook part and a button, the middle of the connecting strip is rotationally connected with the inner top face of the installation cavity through a first rotating seat, and the hook part is connected with the inner top face of the installation cavity through a second rotating seat. The connecting end of the hook part is detachably connected with the front end of the connecting strip through a fastener, the head of the hook part extends out of the mounting cavity, the button is arranged at the rear end of the connecting strip and extends out of the mounting cavity, an opening and an upper cover are arranged on the gun shell, the opening is located over the fastener, and the upper cover is arranged on the gun shell. The upper cover covers the opening; the lock has the advantages that self-service unlocking can be achieved during abnormal locking, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging guns, and particularly relates to a charging gun capable of emergency unlocking. Background Technique

[0002] The charging gun is a core component for charging electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs), and is used to connect the charging socket (power supply end) and the charging interface of the vehicle to transmit electric energy. Generally, a mechanical locking hook is arranged on the existing charging gun, and the charging gun is locked and cooperated with the charging socket through the mechanical locking hook to improve the connection stability between the charging gun and the charging socket. The conventional mechanical locking hook includes a locking hook body and a return spring. The locking hook body is rotatably connected with the gun shell through a rotating shaft. Hook parts and buttons are respectively arranged at two ends of the locking hook body. Pressing the button downward can make the hook part rotate. The return spring is arranged between the locking hook body and the gun shell.

[0003] In order to avoid accidental rotation of the locking hook body during the charging process, which may cause the hook part to disengage from the charging socket, further, an electronic lock is also arranged in the gun shell. During the charging process, the locking hook body is locked by the electronic lock to avoid accidental interruption of charging caused by external force. However, when there is an accidental power outage or the electronic lock is abnormally locked, the charging gun will be locked on the charging socket, that is, the charging gun cannot be pulled out from the charging socket, which brings inconvenience to users. Therefore, there is still room for improvement. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a charging gun capable of emergency unlocking, which can be self-unlocked when abnormally locked and is convenient to use.

[0005] The technical solution adopted by the utility model to solve the above technical problem is: a charging gun capable of emergency unlocking, including a gun shell and a mechanical locking hook. An installation cavity is arranged in the gun shell. The mechanical locking hook includes a connecting strip, a hook part and a button. The middle part of the connecting strip is rotatably connected with the inner top surface of the installation cavity through a first rotating seat. The connecting end of the hook part is detachably connected with the front end of the connecting strip through a fastener. The head of the hook part extends out of the installation cavity. The button is arranged at the rear end of the connecting strip and extends out of the installation cavity. An opening and an upper cover are arranged on the gun shell. The opening is directly above the fastener, and the upper cover covers the opening.

[0006] Preferably, a first connecting plate is fixedly arranged at the connecting end of the hook part. A screw hole is arranged on the first connecting plate. A second connecting plate that is placed on the upper end surface of the first connecting plate is fixedly arranged at the front end of the connecting strip. A through hole communicating with the screw hole is arranged on the second connecting plate. The fastener is a bolt, and the bolt passes through the through hole and is threadedly connected with the screw hole.

[0007] Preferably, a tool handle is provided at the upper end of the upper cover, and a tool bit for screwing the bolt is integrally provided at one end of the tool handle.

[0008] Preferably, a second rotating seat is fixedly provided at the upper end of the upper cover, and the other end of the tool handle is rotatably connected to the second rotating seat through a rotating shaft.

[0009] Preferably, a clamping seat is fixedly provided at the upper end of the gun housing, a clamping groove is formed by downward depression at the upper end of the clamping seat, and the clamping groove penetrates through the front and rear sides of the clamping seat. When the tool handle rotates and extends in the front-rear direction, the tool handle is in clamping fit with the clamping groove.

[0010] Preferably, rubber strips extending in the front-rear direction are respectively provided on the left and right sides of the clamping groove, and the upper ends of the rubber strips are flush with the upper end surface of the clamping seat. When the tool handle is in clamping fit with the clamping groove, the rubber strips are located above the tool handle.

[0011] Preferably, the opening is a circular hole, the circular hole and the perforation are on the same axis, internal threads are provided on the inner wall of the circular hole, the upper cover includes a top plate and a threaded post fixedly provided on the lower end surface of the top plate, and the threaded post is in threaded connection with the internal threads of the circular hole.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] 1. By separately arranging the hook part and the connecting strip, and providing an opening and an upper cover on the gun housing, with the opening located directly above the fastener, when emergency unlocking is required for abnormal locking, the opening can be opened to disassemble the fastener, so that the hook part is separated from the connecting strip and fails to play a locking role. At this time, the user can pull out the charging gun to separate the charging gun from the charging seat. It can be seen that this technical solution facilitates self-unlocking by the user and is convenient to use;

[0014] 2. The hook part and the connecting strip are detachably connected by a fastener, which can not only ensure the structural strength during normal use, but also facilitate quick disassembly in case of emergency. In addition, the hook part is prone to wear during long-term use, and the separate arrangement is convenient for later maintenance and replacement;

[0015] 3. The position of the opening accurately corresponds to the fastener and is covered by the upper cover, which can not only avoid daily misoperations, but also ensure quickly finding the position of the fastener during emergency operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0018] Figure 3Schematic diagram of the partial structure of the present utility model Figure 1 ;

[0019] Figure 4 Schematic diagram of the partial exploded structure of the present utility model;

[0020] Figure 5 Schematic diagram of the partial structure of the present utility model Figure 2 ;

[0021] Figure 6 Schematic diagram of the partial structure of the present utility model Figure 3 .

[0022] In the figure: 1, gun housing; 11, installation cavity; 12, first rotating seat; 13, opening; 14, upper cover; 141, top plate; 142, threaded post; 15, channel; 16, installation port; 17, second rotating seat; 18, card seat; 181, card slot; 182, rubber strip; 2, mechanical locking hook; 21, connecting strip; 211, second connecting plate; 212, perforation; 22, hook part; 221, first connecting plate; 222, screw hole; 23, button; 3, fastener; 4, knife handle; 41, knife head. Specific embodiments

[0023] The following further describes the present utility model in detail with reference to the embodiments of the drawings.

[0024] 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", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] Embodiment 1: As Figures 1 to 4 shown, a charging gun that can be emergently unlocked includes a gun housing 1 and a mechanical locking hook 2. An installation cavity 11 is provided inside the gun housing 1. The mechanical locking hook 2 includes a connecting strip 21, a hook part 22 and a button 23. The middle of the connecting strip 21 is rotatably connected to the inner top surface of the installation cavity 11 through a first rotating seat 12. The connecting end of the hook part 22 is detachably connected to the front end of the connecting strip 21 through a fastener 3. The head of the hook part 22 extends out of the installation cavity 11. The button 23 is arranged at the rear end of the connecting strip 21 and extends out of the installation cavity 11. An opening 13 and an upper cover 14 are provided on the gun housing 1. The opening 13 is located directly above the fastener 3, and the upper cover 14 covers the opening 13.

[0026] It should be noted that a channel 15 for the hook portion 22 to extend out is provided at the front end of the gun housing 1, and a mounting opening 16 adapted to the button 23 is provided at the upper end of the gun housing 1. The settings of the channel 15 and the mounting opening 16 are both conventional technical structures in the art and are not the improvement points of this technical solution, so no further elaboration will be made here.

[0027] In this technical solution, the hook portion 22 and the connecting bar 21 are separately provided, and an opening 13 and an upper cover 14 are provided on the gun housing 1. The opening 13 is located directly above the fastener 3. When emergency unlocking is required for abnormal locking, the opening 13 can be opened to remove the fastener 3, so that the hook portion 22 is disengaged from the connecting bar 21 and becomes ineffective. At this time, the user can pull out the charging gun to separate the charging gun from the charging base, and at the same time, the hook portion 22 is separated from the charging gun.

[0028] Embodiment 2: As Figure 4 and Figure 5 shown, the rest is the same as Embodiment 1. The difference lies in that a first connecting plate 221 is fixedly provided at the connecting end of the hook portion 22, a screw hole 222 is provided on the first connecting plate 221, a second connecting plate 211 that is placed on the upper end surface of the first connecting plate 221 is fixedly provided at the front end of the connecting bar 21, and a through hole 212 communicating with the screw hole 222 is provided on the second connecting plate 211. The fastener 3 is a bolt, and the bolt passes through the through hole 212 and is threadedly connected to the screw hole 222.

[0029] In this embodiment, a knife handle 4 is provided at the upper end of the upper cover 14. One end of the knife handle 4 is integrally provided with a tool bit 41 for screwing the bolt. By integrating the knife handle 4 and the tool bit 41, it is convenient for the user to quickly disassemble the bolt without additionally equipping a screwdriver. When in use, first open the upper cover 14, then turn over the upper cover 14 so that the knife handle 4 passes through the opening 13 and extends into the installation cavity 11 (see Figure 2 ), and make the tool bit 41 abut against the head of the bolt. At this time, turning the upper cover 14 can screw the bolt.

[0030] It should be noted that the head of the bolt has a slotted head, a Phillips head, a hexalobular socket head or a hexagonal groove, and the tool bit 41 is in a shape adapted to the above-mentioned groove. The accompanying drawings only show the structure when there is a slotted head.

[0031] Embodiment 3: As Figures 4 to 6 shown, the rest is the same as Embodiment 2. The difference lies in that a second rotating seat 17 is fixedly provided at the upper end of the upper cover 14, and the other end of the knife handle 4 is rotatably connected to the second rotating seat 17 through a rotating shaft. When not in use, the knife handle 4 can be placed horizontally to avoid accidental contact by the user and make the overall structure more compact and convenient for storage.

[0032] In this embodiment, a holder 18 is fixedly provided at the upper end of the gun housing 1, and the upper end of the holder 18 is recessed downward to form a slot 181, which runs through the front and rear sides of the holder 18. When the knife handle 4 rotates and extends in the front-to-back direction, the knife handle 4 engages with the slot 181. Further, rubber strips 182 extending in the front-to-back direction are respectively provided on the left and right sides of the slot 181, and the upper end of the rubber strip 182 is flush with the upper end surface of the holder 18. When the knife handle 4 engages with the slot 181, the rubber strip 182 is located above the knife handle 4. The design of this structure can prevent the knife handle 4 from sliding out by itself when the vehicle vibrates or moves, which helps to improve the stability of the structure.

[0033] Embodiment 4: Figure 4 and Figure 5 As shown, the rest of the parts are the same as those of the third embodiment, except that the opening 13 is a circular hole, the circular hole and the through hole 212 are located on the same axis, the inner wall of the circular hole is provided with an internal thread (not shown in the figure), and the upper cover 14 includes a top plate 141 and a threaded column 142 fixedly provided on the lower end surface of the top plate 141, and the threaded column 142 is threadedly connected with the internal thread of the circular hole. When opening or closing the upper cover 14, the threaded column 142 can be twisted by rotating the handle 4, which is more labor-saving in use.

[0034] It should be noted that since the second rotating seat 17 is fixedly provided on the upper end of the upper cover 14, when the handle 4 and the threaded column 142 are twisted at an angle of 90°, the handle 4 may collide with the second rotating seat 17. Before the collision, the handle 4 can be rotated 180° around the axis and then twisted.

[0035] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A charging gun capable of emergency unlocking, comprising a gun housing (1) and a mechanical locking hook (2). An installation cavity (11) is arranged inside the gun housing (1), and it is characterized in that: The mechanical locking hook (2) includes a connecting bar (21), a hook portion (22) and a button (23). The middle of the connecting bar (21) is rotatably connected to the inner top surface of the installation cavity (11) through a first rotating seat (12). The connecting end of the hook portion (22) is detachably connected to the front end of the connecting bar (21) through a fastener (3). The head of the hook portion (22) extends out of the installation cavity (11). The button (23) is arranged at the rear end of the connecting bar (21) and extends out of the installation cavity (11). An opening (13) and an upper cover (14) are arranged on the gun housing (1). The opening (13) is located directly above the fastener (3), and the upper cover (14) covers the opening (13).

2. The emergency unlockable charging gun according to claim 1, characterized in that: A first connecting plate (221) is fixedly arranged at the connecting end of the hook portion (22). A screw hole (222) is arranged on the first connecting plate (221). A second connecting plate (211) that is placed on the upper end surface of the first connecting plate (221) is fixedly arranged at the front end of the connecting bar (21). A through hole (212) that communicates with the screw hole (222) is arranged on the second connecting plate (211). The fastener (3) is a bolt, and the bolt passes through the through hole (212) and is threadedly connected to the screw hole (222).

3. The charging gun capable of emergency unlocking according to claim 2, wherein: A knife handle (4) is arranged at the upper end of the upper cover (14). A knife head (41) for screwing the bolt is integrally arranged at one end of the knife handle (4).

4. The charging gun capable of emergency unlocking according to claim 3, wherein: A second rotating seat (17) is fixedly arranged at the upper end of the upper cover (14). The other end of the knife handle (4) is rotatably connected to the second rotating seat (17) through a rotating shaft.

5. The charging gun capable of emergency unlocking according to claim 4, wherein: A clamping seat (18) is fixedly arranged at the upper end of the gun housing (1). A clamping groove (181) is formed by downward depression at the upper end of the clamping seat (18). The clamping groove (181) penetrates the front and rear sides of the clamping seat (18). When the knife handle (4) rotates and extends in the front-rear direction, the knife handle (4) is in clamping fit with the clamping groove (181).

6. The charging gun capable of emergency unlocking according to claim 5, characterized in that: Rubber strips (182) extending in the front-rear direction are respectively arranged on the left and right sides of the clamping groove (181). The upper ends of the rubber strips (182) are flush with the upper end surface of the clamping seat (18). When the knife handle (4) is in clamping fit with the clamping groove (181), the rubber strips (182) are located above the knife handle (4).

7. The charging gun capable of emergency unlocking according to claim 4, wherein: The opening (13) is a circular hole. The circular hole and the through hole (212) are on the same axis. Internal threads are arranged on the inner wall of the circular hole. The upper cover (14) includes a top plate (141) and a threaded post (142) fixedly arranged on the lower end surface of the top plate (141). The threaded post (142) is threadedly connected to the internal threads of the circular hole.

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