Charging gun automatic tripping and withdrawing device

Abstract

The utility model discloses an automatic tripping and withdrawing device for a charging gun, which belongs to the technical field of charging guns and comprises an electromagnet. The electromagnet is arranged at the top in a gun body shell and is fixedly connected with a button of a hasp; a pushing assembly used for separating the connector from the charging port is connected into the gun body shell. The pushing assembly comprises an expansion pushing assembly used for separating the connector from the charging port, an air pressure assembly used for air pressure control of the expansion pushing assembly and a reset assembly used for recovering the expansion pushing assembly to an original position, the expansion pushing assembly is connected with the mounting ring, and the air pressure assembly is communicated and connected with the expansion pushing assembly; the expansion pushing assembly is connected with a plurality of sets of reset assemblies, and the reset assemblies are connected with the mounting ring. Through the above mode, the charging gun can be automatically tripped and withdrawn, the tripping and withdrawing acting force is balanced, the charging port and the connector are prevented from being damaged, and in addition, the charging gun provided with the automatic tripping and withdrawing device can be adapted to a mobile shared charging system for use.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, in particular to an automatic tripping and retracting device for a charging gun. Background Art

[0002] A charging gun is one of the important components of a charging pile, and it is an intermediary connecting an electric vehicle and a charging pile.

[0003] Chinese Patent CN111478117A discloses a charging gun, which includes: a housing provided with an installation cavity and an activity groove communicating with the installation cavity; an electromagnetic lock assembly disposed in the installation cavity, the electromagnetic lock assembly being provided with an unlocking hole corresponding to the activity groove; an unlocking member movably disposed in the activity groove, one end of the unlocking member away from the notch of the activity groove being inserted into the unlocking hole, and the unlocking member moving relative to the activity groove to unlock the electromagnetic lock assembly. The present invention aims to solve the problems that the emergency unlocking tooling of the charging gun is inconvenient to find and easy to lose, and provides a charging gun with no shaking, anti-loss, simple structure and low cost of the unlocking member.

[0004] When the above-mentioned charging gun is adapted to a mobile shared charging system, its user needs to manually pull out the charging gun when it is in use at the current position and then move it to the corresponding position, which is not convenient for actual use.

[0005] Based on this, the utility model designs an automatic tripping and retracting device for a charging gun to solve the above problems. Content of the Utility Model

[0006] Aiming at the above-mentioned disadvantages of the prior art, the utility model provides an automatic tripping and retracting device for a charging gun.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: an automatic tripping and retracting device for a charging gun, including an electromagnet for button unlocking of the buckle:

[0008] The electromagnet is fixedly installed at the inner top of the gun body housing, and the driving end of the electromagnet is fixedly connected to the button of the buckle;

[0009] A pushing assembly for separating the connector from the charging port is connected inside the gun body housing;

[0010] The pushing assembly includes an expansion pushing assembly for separating the connector from the charging port, a pneumatic assembly for controlling the air pressure of the expansion pushing assembly, and a reset assembly for recovering the expansion pushing assembly to its original position. The expansion pushing assembly is connected to the end of the mounting ring close to the connector, the pneumatic assembly is connected to the expansion pushing assembly in communication, the expansion pushing assembly is connected with multiple groups of reset assemblies, and the reset assemblies are connected to the end of the mounting ring away from the connector.

[0011] Further, when the electromagnet is energized, the driving end of the electromagnet moves downward, and the buckle moves downward to be in the unlocked state.

[0012] Further, the expansion pushing assembly includes an airbag and a slip ring. The inner wall of the slip ring is in sliding fit connection with the outer wall of the connecting head. The side wall of the slip ring is fixedly connected to one end of the airbag. Both ends of the airbag are fixedly connected to the side wall of the mounting ring. The slip ring is connected to the reset assembly.

[0013] Further, a sealing ring is installed at the contact part between the slip ring and the connecting head.

[0014] Further, the air pressure assembly includes an air outlet, an air inlet, an air pipe, a three-way valve, an air pump and an air suction pipe. An air outlet and an air inlet are opened at the bottom of the gun body housing. The mounting ring is fixedly connected with an air pipe in communication. The air pipe is connected to a set of air outlet ends of the three-way valve. The other set of air outlet ends of the three-way valve is fixedly connected in communication with the air outlet. The air inlet end of the three-way valve is fixedly connected to the air outlet end of the air pump. The air inlet end of the air pump is fixedly connected with an air suction pipe, and the air suction pipe is fixedly connected in communication with the air inlet.

[0015] Further, the connection part between the air pipe and the mounting ring is located between the outer end of the slip ring and the other end of the airbag.

[0016] Further, the reset assemblies are installed on the side wall of the mounting ring at equal intervals along the circumferential direction.

[0017] Further, the reset assembly includes a spring and a sliding rod. The left end of the spring is fixedly connected to the right side wall of the mounting ring. The right end of the spring is fixedly connected to the sliding rod. The sliding rod passes through the spring and the mounting ring and is fixedly connected to the slip ring.

[0018] Beneficial effects

[0019] After the charging of the utility model is completed, the electromagnet is energized. The electromagnet drives the button of the buckle to move downward, and the buckle is unlocked. The air pressure assembly of the pushing assembly inflates the expansion pushing assembly. After the expansion pushing assembly is inflated, it expands outward until it contacts the charging port. The expansion pushing assembly drives the reset assembly to compress. When the expansion pushing assembly contacts the charging port, a reaction force is generated to push the gun body housing to move outward, driving the connecting head to be completely separated from the charging port, realizing automatic unclamping and gun withdrawal of the charging gun, and the unclamping and gun withdrawal force is balanced, avoiding damage to the charging port and the connecting head. In addition, the charging gun with an automatic unclamping and gun withdrawal device can be adapted to a mobile shared charging system for use, without manual unclamping and gun withdrawal treatment, facilitating the mobile shared charging system to move the charging gun to the position where charging is required. After the gun is withdrawn, the air pressure assembly discharges the gas in the expansion pushing assembly, and the inflated expansion pushing assembly can protect the connecting head during automatic unclamping and gun withdrawal, avoiding direct collision between the connecting head and the ground. The restoring force of the reset assembly drives the expansion pushing assembly to move into the gun body housing for recycling, which can prevent the expansion pushing assembly from affecting the subsequent use of the connecting head. Description of the drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0021] Figure 1 Three-dimensional structure of an automatic tripping and retracting device for a charging gun of the present invention Figure 1 ;

[0022] Figure 2 Front view of an automatic tripping and retracting device for a charging gun of the present invention;

[0023] Figure 3 Left view of an automatic tripping and retracting device for a charging gun of the present invention;

[0024] Figure 4 Three-dimensional structure of an automatic tripping and retracting device for a charging gun of the present invention Figure 2 ;

[0025] Figure 5 Is a sectional view along the A-A direction of Figure 3 ;

[0026] Figure 6 Is a partial view of the structure of an automatic tripping and retracting device for a charging gun after inflation.

[0027] The reference numerals in the figure respectively represent:

[0028] 1. Gun body housing 2. Connector 3. Buckle 4. Pushing assembly 41. Airbag 42. Air outlet 43. Air inlet 44. Slip ring 45. Spring 46. Air pipe 47. Slide bar 48. Three-way valve 49. Air pump 410. Suction pipe 5. Mounting ring 6. Electromagnet. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] The following further describes the present invention with reference to the embodiments.

[0031] Embodiment 1

[0032] Please refer to the attached instructions Figures 1-6 , an automatic release and retraction device for a charging gun, including an electromagnet 6 for button unlocking of the buckle 3:

[0033] A mounting ring 5 is fixedly connected to the charging end of the gun body housing 1. A connector 2 inserted into the charging port is installed inside the mounting ring 5. A buckle 3 for locking and unlocking the gun body housing 1 and the charging port is connected to the top of the charging end of the gun body housing 1;

[0034] The electromagnet 6 is fixedly installed at the inner top of the gun body housing 1, and the driving end of the electromagnet 6 is fixedly connected to the button of the buckle 3;

[0035] A pushing assembly 4 for separating the connector 2 from the charging port is connected inside the gun body housing 1;

[0036] The pushing assembly 4 includes an expansion pushing assembly for separating the connector 2 from the charging port, a pneumatic assembly for controlling the air pressure of the expansion pushing assembly, and a reset assembly for recovering the expansion pushing assembly to its original position. The expansion pushing assembly is connected to the end of the mounting ring 5 close to the connector 2. The pneumatic assembly is connected to the expansion pushing assembly in communication. The expansion pushing assembly is connected with multiple groups of reset assemblies, and the reset assemblies are connected to the end of the mounting ring 5 far from the connector 2;

[0037] When the electromagnet 6 is energized, the driving end of the electromagnet 6 moves downward, and the buckle 3 is in the unlocked state when it moves downward;

[0038] After charging is completed, the electromagnet 6 is energized. The electromagnet 6 drives the button of the buckle 3 to move downward, and the buckle 3 is unlocked. The pneumatic assembly of the pushing assembly 4 inflates the expansion pushing assembly. After the expansion pushing assembly is inflated, it expands outward until it contacts the charging port. The expansion pushing assembly drives the reset assembly to compress. When the expansion pushing assembly contacts the charging port, it generates a reaction force to push the gun body housing 1 outward, driving the connector 2 to be completely separated from the charging port, realizing automatic release and retraction of the charging gun. Moreover, the force of release and retraction is balanced, avoiding damage to the charging port and the connector 2. In addition, the charging gun equipped with the automatic release and retraction device can be adapted to a mobile shared charging system for use, without manual release and retraction processing, facilitating the mobile shared charging system to move the charging gun to the position where charging is required. And when automatically releasing and retracting the gun, the inflated expansion pushing assembly can protect the connector 2, avoiding direct collision of the connector 2 with the ground. After retracting the gun, the pneumatic assembly discharges the gas in the expansion pushing assembly, and the restoring force of the reset assembly drives the expansion pushing assembly to move into the gun body housing 1 for recovery processing, which can avoid the expansion pushing assembly affecting the subsequent use of the connector 2;

[0039] The expansion driving assembly includes an airbag 41 and a slip ring 44. The inner wall of the slip ring 44 is in sliding fit connection with the outer wall of the connector 2. The side wall of the slip ring 44 is fixedly connected to one end of the airbag 41. Both ends of the airbag 41 are fixedly connected to the side wall of the mounting ring 5. The slip ring 44 is connected to the reset assembly;

[0040] A sealing ring is installed at the contact part between the slip ring 44 and the connector 2;

[0041] The air pressure assembly includes an air outlet 42, an air inlet 43, an air pipe 46, a three-way valve 48, an air pump 49 and an air suction pipe 410. An air outlet 42 and an air inlet 43 are formed at the bottom of the gun body housing 1. The mounting ring 5 is fixedly connected to the air pipe 46 in communication. The air pipe 46 is connected to one set of air outlet ends of the three-way valve 48. The other set of air outlet ends of the three-way valve 48 is fixedly connected to the air outlet 42 in communication. The air inlet end of the three-way valve 48 is fixedly connected to the air outlet end of the air pump 49. The air inlet end of the air pump 49 is fixedly connected to the air suction pipe 410. The air suction pipe 410 is fixedly connected to the air inlet 43 in communication;

[0042] The connection part between the air pipe 46 and the mounting ring 5 is located between the outer end of the slip ring 44 and the other end of the airbag 41;

[0043] The reset assembly is installed on the side wall of the mounting ring 5 at equal intervals along the circumference;

[0044] The reset assembly includes a spring 45 and a slide bar 47. The left end of the spring 45 is fixedly connected to the right side wall of the mounting ring 5. The right end of the spring 45 is fixedly connected to the slide bar 47. The slide bar 47 passes through the spring 45 and the mounting ring 5 and is then fixedly connected to the slip ring 44;

[0045] The three-way valve 48 of the pneumatic component that drives component 4 opens to the air pipe 46 and closes to the air outlet 42. The air pump 49 inflates the air pipe 46 through the suction pipe 410 and the air inlet 43. The air pipe 46 guides the gas to the airbag 41 of the expansion and propulsion component. The airbag 41 is inflated. After the airbag 41 of the expansion and propulsion component is inflated, it expands outward until it contacts the charging port. The airbag 41 of the expansion and propulsion component drives the slip ring 44 to move along the connector 2. The slip ring 44 drives the slide bar 47 to move. The slide bar 47 drives the spring 45 to compress. When the airbag 41 of the expansion and propulsion component contacts the charging port, it generates a reaction force to push the gun body housing 1 to move outward. The gun body housing 1 drives the connector 2 to be completely separated from the charging port, realizing automatic release and retraction of the charging gun. Moreover, the force for release and retraction is balanced, avoiding damage to the charging port and the connector 2. In addition, the charging gun equipped with the automatic release and retraction device can be adapted to the mobile shared charging system for use, without the need for manual release and retraction processing, facilitating the mobile shared charging system to move the charging gun to the position where charging is required. And when automatically releasing and retracting, the inflated expansion and propulsion component can protect the connector 2, preventing the connector 2 from directly colliding with the ground. After retracting the gun, the three-way valve 48 of the pneumatic component closes to the air pipe 46 and opens to the air outlet 42 to discharge the gas in the airbag 41 of the expansion and propulsion component through the air pipe 46 and the air outlet 42. The restoring force of the spring 45 of the reset component drives the slide bar 47 to move. The slide bar 47 drives the slip ring 44 to move. The slip ring 44 drives the airbag 41 of the expansion and propulsion component to move into the gun body housing 1 for recycling, which can prevent the airbag 41 of the expansion and propulsion component from affecting the subsequent use of the connector 2.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An automatic release and retraction device for a charging gun, comprising an electromagnet (6) for unlocking the button of the buckle (3), characterized in that: The electromagnet (6) is fixedly installed at the inner top of the gun body housing (1), and the driving end of the electromagnet (6) is fixedly connected to the button of the buckle (3); A pushing assembly (4) for separating the connector (2) from the charging port is connected inside the gun body housing (1); The pushing assembly (4) includes an expansion pushing assembly for separating the connector (2) from the charging port, a pneumatic assembly for controlling the air pressure of the expansion pushing assembly, and a reset assembly for returning the expansion pushing assembly to its original position. The expansion pushing assembly is connected to the end of the mounting ring (5) close to the connector (2), the pneumatic assembly is connected to the expansion pushing assembly in communication, the expansion pushing assembly is connected with multiple groups of reset assemblies, and the reset assemblies are connected to the end of the mounting ring (5) away from the connector (2).

2. The automatic tripping and gun withdrawal device for a charging gun according to claim 1, wherein When the electromagnet (6) is energized, the driving end of the electromagnet (6) moves downward, and the buckle (3) is in the unlocked state when it moves downward.

3. The automatic tripping and gun-retracting device for the charging gun according to any one of claims 1-2, characterized in that, The expansion pushing assembly includes an airbag (41) and a sliding ring (44). The inner wall of the sliding ring (44) is in sliding fit with the outer wall of the connector (2). The side wall of the sliding ring (44) is fixedly connected to one end of the airbag (41). Both ends of the airbag (41) are fixedly connected to the side wall of the mounting ring (5). The sliding ring (44) is connected to the reset assembly.

4. The automatic tripping and gun-retracting device for a charging gun according to claim 3, wherein, A sealing ring is installed at the contact part between the sliding ring (44) and the connector (2).

5. The automatic tripping and gun retracting device for the charging gun according to claim 4, wherein The pneumatic assembly includes an air outlet (42), an air inlet (43), an air pipe (46), a three-way valve (48), an air pump (49) and an air suction pipe (410). An air outlet (42) and an air inlet (43) are opened at the bottom of the gun body housing (1). The mounting ring (5) is fixedly connected in communication with an air pipe (46). The air pipe (46) is connected to a set of air outlet ends of the three-way valve (48). The other set of air outlet ends of the three-way valve (48) is fixedly connected in communication with the air outlet (42). The air inlet end of the three-way valve (48) is fixedly connected to the air outlet end of the air pump (49). The air inlet end of the air pump (49) is fixedly connected with an air suction pipe (410). The air suction pipe (410) is fixedly connected in communication with the air inlet (43).

6. The automatic tripping and gun withdrawal device for the charging gun according to claim 5, wherein, The connection part of the air pipe (46) and the mounting ring (5) is located between the outer end of the sliding ring (44) and the other end of the airbag (41).

7. The automatic tripping and gun-retracting device for a charging gun according to claim 6, wherein The reset assemblies are installed on the side wall of the mounting ring (5) at equal intervals along the circumferential direction.

8. The automatic tripping and gun-retracting device for a charging gun according to claim 7, wherein, The reset assembly includes a spring (45) and a sliding rod (47). The left end of the spring (45) is fixedly connected to the right side wall of the mounting ring (5). The right end of the spring (45) is fixedly connected to the sliding rod (47). The sliding rod (47) passes through the spring (45) and the mounting ring (5) and is fixedly connected to the sliding ring (44).

Images