Electric vehicle speed change safety handle with automatic power off

Abstract

The present invention relates to the field of electric vehicle accessories, and discloses an electric vehicle speed change safety handle with automatic power-off, a power line separation mechanism, a first conductive sheet fixedly connected to a housing and a handle shell, connected to the output end of an electric vehicle power supply, a second conductive sheet connected to the input end of an electric vehicle transmission, a gap of a preset spacing between the first conductive sheet and the second conductive sheet, and the two are arranged horizontally opposite to each other; a translation propulsion rod is slidably connected to the handle shell, and a conductive component is fixed to one end of the translation propulsion rod facing the gap between the first conductive sheet and the second conductive sheet; when a conductive clip in the conductive component is located between the first conductive sheet and the second conductive sheet, the first conductive sheet and the second conductive sheet are connected; a reverse thrust spring is used to push the translation propulsion rod in the reverse direction to move the conductive clip out of the gap. Compared with the prior art, the present invention can effectively solve the safety hazard caused by children mistakenly operating the acceleration handle of an electric vehicle when the user forgets to disconnect the power supply.

Description

Technical Field

[0001] The invention relates to the field of electric vehicle accessories, and in particular to an electric vehicle speed-changing safety handle with automatic power-off. Background Art

[0002] Electric vehicles are an indispensable means of transportation in people's lives and have been loved by consumers in recent years. However, through our research and investigation over the past two years, it is well documented that current electric vehicle products still have the following two safety hazards:

[0003] When an electric vehicle is parked or stopped during normal riding, naughty children may accidentally turn the handlebars of the electric vehicle and injure the children, which poses a safety hazard. Especially when the electric vehicle is stopped, many people forget to disconnect the power supply (the ignition key is still on). During this short period of time, an ignorant child may accidentally turn the speed handle of the electric vehicle, and the electric vehicle may suddenly rush forward, causing personal injury. The existing patents for safety handles of electric vehicles are difficult to implement and the cost is high. Therefore, it is urgent to invent an electric vehicle handle with a simple structure and easy implementation to replace the unsafe electric vehicle handles currently on the market, so as to completely solve the safety hazard of electric vehicles injuring children. Summary of the invention

[0004] Purpose of the invention: In view of the problems existing in the prior art, the present invention provides an electric vehicle speed change safety handle with automatic power-off, which can effectively solve the safety hazard caused by children mistakenly operating the acceleration handle of the electric vehicle when the user forgets to disconnect the power.

[0005] Technical solution: The present invention provides an electric vehicle speed change safety handle with automatic power-off, comprising a handle housing, a transmission, a power cord separation mechanism, a translation propulsion rod and a reverse thrust spring; in the power cord separation mechanism, a shell is fixedly connected to the handle housing, a first conductive sheet is connected to the output end of the electric vehicle power supply, and a second conductive sheet is connected to the input end of the electric vehicle transmission, a gap of a preset spacing is provided between the first conductive sheet and the second conductive sheet, and the two are arranged horizontally opposite to each other; the translation propulsion rod is slidably connected to the shell of the handle housing, and a conductive component is fixed to one end of the translation propulsion rod facing the gap between the first conductive sheet and the second conductive sheet; when the conductive block is located between the first conductive sheet and the second conductive sheet, conduction is provided between the first conductive sheet and the second conductive sheet; the reverse thrust spring is used to push the translation propulsion rod in the reverse direction to move the conductive component out of the gap.

[0006] Furthermore, in the power separation mechanism, one end of the first spring is fixedly connected to the first conductive sheet, and the other end is fixedly connected to the housing; one end of the second spring is fixedly connected to the second conductive sheet, and the other end is fixedly connected to the housing; the first spring, the first conductive sheet, the second conductive sheet, and the second spring are coaxially arranged in sequence. The arrangement of the first spring and the second spring enables the first conductive sheet and the second conductive sheet to automatically separate to both sides when the conductive component is pushed in between them, thereby expanding the gap between them, so that the conductive component can be smoothly pushed into the gap between them.

[0007] Preferably, the first conductive sheet is connected to the output end of the electric vehicle power supply through a first conductive bracket fixedly connected to the housing, and the second conductive sheet is connected to the input end of the electric vehicle transmission through a second conductive bracket fixed to the housing. The output end of the power supply is directly connected to the first conductive bracket, and the input end of the transmission is directly connected to the second conductive bracket.

[0008] Preferably, the first conductive sheet is in sliding contact with the first conductive bracket, and the second conductive sheet is in sliding contact with the second conductive bracket. The first conductive bracket and the second conductive bracket are arranged so that the first conductive sheet and the second conductive sheet have a support to ensure their stable positions.

[0009] Furthermore, in the power separation mechanism, one end of the third spring arranged perpendicularly to the first spring is fixedly connected to the housing, and the other end is fixedly connected to the first pressure block, and the first pressure block and the first conductive bracket are respectively located on both sides of the first conductive sheet; one end of the fourth spring arranged perpendicularly to the second spring is fixedly connected to the housing, and the other end is fixedly connected to the second pressure block, and the second pressure block and the second conductive bracket are respectively located on both sides of the second conductive sheet. The arrangement of the third spring and the first pressure block enables the first conductive sheet to always be in effective contact with the first conductive bracket, preventing the first conductive sheet and the first conductive bracket from suddenly being powered off due to poor contact during riding; similarly, the arrangement of the fourth spring and the second pressure block enables the second conductive sheet to always be in effective contact with the second conductive bracket, preventing the second conductive sheet and the second conductive bracket from suddenly being powered off due to poor contact during riding.

[0010] Preferably, the conductive component includes a positioning block and a conductive clip, the positioning block is fixed to one end of the translation propulsion rod, and the conductive clip is clamped on the outer wall of the positioning block. When the conductive component is located between the first conductive sheet and the second conductive sheet, the two sides of the conductive clip are respectively in effective contact with the first conductive sheet and the second conductive sheet.

[0011] Furthermore, an arc-shaped guide block is fixed to one end of the positioning block facing the gap between the first conductive sheet and the second conductive sheet. In order to prevent the positioning block from failing to smoothly enter the gap when the positioning block is pushed into the gap between the first conductive sheet and the second conductive sheet by translating the push rod, an arc-shaped guide block is provided at the end of the positioning block, and the positioning block can smoothly enter the gap through the guiding effect of the arc-shaped guide block.

[0012] Furthermore, one end of the reverse thrust spring is fixedly connected to the lower part of one end of the translation propulsion rod to which the positioning block is fixed, and the other end is fixedly connected to the handle housing, and the reverse thrust spring is parallel to the translation direction of the translation propulsion rod. When the user's hand is separated from the handle housing and the translation propulsion rod, the reverse spring can timely move the translation propulsion rod in the opposite horizontal direction, so that the conductive component at the end of the translation propulsion rod can timely move out of the gap between the first conductive sheet and the second conductive sheet, so that the first conductive sheet and the second conductive sheet can be disconnected in time.

[0013] Preferably, the preset spacing is smaller than the width of the positioning block. Only when the spacing of the gap between the first conductive sheet and the second conductive sheet is smaller than the width of the positioning block, can it be ensured that when the positioning block is inserted into the gap between the two, both sides of the conductive clip on the positioning block are effectively in contact with the first conductive sheet and the second conductive sheet respectively.

[0014] Preferably, the translation propulsion rod is slidably connected to the housing via a dovetail groove on the housing.

[0015] Beneficial effect: The present invention adds a translation propulsion rod, a reverse thrust spring and a power separation mechanism without changing any function of the speed handle of the electric vehicle. Only when the user holds the translation propulsion separation rod and moves it horizontally forward until the conductive component at its end contacts the first conductive sheet and the second conductive sheet in the power separation mechanism at the same time, can the transmission of the electric vehicle be energized, and then the rotating sleeve of the transmission can rotate when the handle housing is rotated, and the electric vehicle can accelerate forward. When the user lets go, the reverse thrust spring can push the translation propulsion rod in the opposite direction, thereby separating the conductive component at its end from the first conductive sheet and the second conductive sheet. In this way, the transmission is disconnected from the power supply, and the electric vehicle cannot be driven forward no matter how the handle housing is rotated.

[0016] The present invention enables the electric handle shell to automatically connect to the power supply within one second to accelerate the vehicle forward, and can cut off the power supply within one second when no one is holding the electric handle. With this design, when a child only rotates the electric handle shell, the electric vehicle will never move forward, thus effectively avoiding the occurrence of injuries caused by children's misoperation of the handle shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the electric vehicle speed change safety handle with automatic power-off and the electric vehicle transmission;

[0018] Figure 2 An exploded view of the overall structure of an electric vehicle speed-changing safety handle with automatic power-off;

[0019] Figures 3 to 5 A schematic diagram of the three-dimensional structure of the electric vehicle speed change safety handle with automatic power-off after removing the housing of the power line separation mechanism;

[0020] Figure 6 A three-dimensional diagram of the overall structure of an electric vehicle speed-changing safety handle with automatic power-off;

[0021] Figures 7 to 8 A three-dimensional diagram of the partial structure of an electric vehicle speed change safety handle with automatic power-off. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings.

[0023] This embodiment provides an electric vehicle speed change safety handle with automatic power off, such as Figures 1 to 8 , mainly composed of a handle shell 6, a power line separation mechanism, a translation propulsion rod 1 and a reverse thrust spring 2; the power line separation mechanism is mainly composed of a shell 3, a first conductive sheet 4, a second conductive sheet 5, a first spring 12, a second spring 13, a third spring 14, a fourth spring 15, a first conductive bracket 16, a second conductive bracket 17, a first pressure block 18 and a second pressure block 19, the first conductive bracket 16 is fixedly connected to the inner wall of the shell 3, the first conductive sheet 4 is in sliding contact with the first conductive bracket 16, the second conductive bracket 17 is fixedly connected to the inner wall of the shell 3, and the second conductive sheet 5 is in sliding contact with the second conductive bracket 17; the preset spacing of the gap between the first conductive sheet 4 and the second conductive sheet 5 is smaller than the width of the positioning block 8; the first conductive sheet 4 is connected to the output end of the electric vehicle power supply through the first conductive bracket 16, and the second conductive sheet 5 is connected to the input end of the electric vehicle transmission 11 through the second conductive bracket 17.

[0024] One end of the first spring 12 is fixedly connected to the first conductive sheet 4, and the other end is fixedly connected to the housing 3; one end of the second spring 13 is fixedly connected to the second conductive sheet 5, and the other end is fixedly connected to the housing 3; and the first spring 12, the first conductive sheet 4, the second conductive sheet 5 and the second spring 13 are coaxially arranged in sequence. The third spring 14 is arranged vertically to the first spring 12, one end of the third spring 14 is fixedly connected to the housing 3, and the other end is fixedly connected to the first pressure block 18, the first pressure block 18 is in sliding contact with the first conductive sheet 4, and the first pressure block 18 and the first conductive bracket 16 are respectively located on the upper and lower sides of the first conductive sheet 4; the fourth spring 15 is arranged vertically to the second spring 13, one end of the fourth spring 15 is fixedly connected to the housing 3, and the other end is fixedly connected to the second pressure block 19, the second pressure block 19 is in sliding contact with the second conductive sheet 5, and the second pressure block 19 and the second conductive bracket 17 are respectively located on the upper and lower sides of the second conductive sheet 5.

[0025] The translation propulsion rod 1 is slidably connected to the handle housing 6 via a dovetail groove 7 on the housing 6 , a modified propulsion rod sheath 20 is fixed to the translation propulsion rod 1 , and a conductive component is fixed to one end of the translation propulsion rod 1 facing the gap between the first conductive sheet 4 and the second conductive sheet 5 .

[0026] The conductive component is mainly composed of a positioning block 8, a conductive clip 9 and an arc-shaped guide block 10. The positioning block 8 is fixed at one end of the translation propulsion rod 1, and the conductive clip 9 is stuck on the outer wall of the positioning block 8. The preset spacing of the gap between the first conductive sheet 4 and the second conductive sheet 5 can just allow the positioning block 8 to enter. When the positioning block 8 is located in the gap between the first conductive sheet 4 and the second conductive sheet 5, the two sides of the conductive clip 9 are effectively in contact with the first conductive sheet 4 and the second conductive sheet 5 respectively, and the first conductive sheet 4 and the second conductive sheet 5 are conductive; the arc-shaped guide block 10 is fixed at one end of the positioning block 8 facing the gap between the first conductive sheet 4 and the second conductive sheet 5.

[0027] One end of the reverse thrust spring 2 is fixedly connected to the lower part of one end of the translation propulsion rod 1 fixed with the positioning block 8, and the other end is fixedly connected to the handle housing 6. The reverse thrust spring 2 is parallel to the translation direction of the translation propulsion rod 1; the axis where the reverse thrust spring 2 and the translation propulsion rod 1 are located is perpendicular to the axis where the first conductive sheet 4 and the second conductive sheet 5 are located. The reverse thrust spring 2 is used to reversely push the translation propulsion rod 1 to translate along the dovetail groove 7, so that the conductive component moves out of the gap between the first conductive sheet 4 and the second conductive sheet 5.

[0028] When the handle needs to be installed on the electric vehicle that needs to be modified, it is only necessary to remove the ordinary handle of the electric vehicle that needs to be modified, and then put the handle on the rotating sleeve 21 of the electric vehicle transmission 11. The inner wall of the handle shell is provided with at least one positioning groove 22, and the outer wall of the rotating sleeve 11 is provided with a positioning convex key 23 that cooperates with the positioning groove 22. Through the engagement of the positioning groove 22 and the positioning convex key 23, the handle shell 6 and the rotating sleeve 21 are engaged and positioned, and then the handle shell 6 and the rotating sleeve 21 are fixed by the bolt 24. Figure 1 , modification is very convenient and quick, and it has a wide range of applications.

[0029] The working principle of the electric vehicle speed change safety handle with automatic power-off in the present invention is as follows:

[0030] In the initial state, the positioning block 8 is not located in the gap between the first conductive sheet 4 and the second conductive sheet 5. At this time, the first conductive sheet 4 and the second conductive sheet 5 are disconnected, that is, the electric vehicle transmission 11 is disconnected from the electric vehicle power supply, and the electric vehicle is in a power-off state and cannot move forward. When the electric vehicle needs to move forward, the electric vehicle handle shell 6 and the modified propulsion rod sheath 20 on the outside of the translation propulsion rod 1 are held, and the translation propulsion rod 1 together with the modified propulsion rod sheath 20 are moved along the dovetail groove 7 on the shell 6 toward the direction of the first conductive sheet 4 and the second conductive sheet 5. Under the guidance of the arc-shaped guide block 10 at the end of the positioning block 8, when the conductive component at the end of the translation propulsion rod 1 is smoothly moved into the gap between the first conductive sheet 4 and the second conductive sheet 5, the two sides of the conductive clip 9 on the positioning block 8 are just effectively contacted with the first conductive sheet 4 and the second conductive sheet 5 respectively, which is equivalent to connecting the first conductive sheet 4 and the second conductive sheet 5, that is, connecting the electric vehicle transmission 11 to the electric vehicle power supply. At this time, the electric vehicle is powered on, and then the handle shell 6 is rotated within one second to rotate the rotating sleeve 21 of the transmission 11 to accelerate the electric vehicle forward through the transmission.

[0031] In the above process, when the translation propulsion rod 1 is pushed toward the gap between the first conductive sheet 4 and the second conductive sheet 5, since the width of the positioning block 8 is greater than the preset spacing of the gap between the first conductive sheet 4 and the second conductive sheet 5, when the positioning block 8 enters between the first conductive sheet 4 and the second conductive sheet 5 under the action of the arc-shaped guide block 10, the first conductive sheet 4 and the second conductive sheet 5 will be squeezed to both sides respectively, thereby compressing the first spring 12 and the second spring 13. Under the action of the rebound force of the first spring 12 and the second spring 13, the first conductive sheet 4 and the second conductive sheet 5 will be in close and effective contact with both sides of the conductive clip 9 on the positioning block 8; and the first conductive sheet 4 and the first conductive sheet 5 will be in close and effective contact with each other. The effective contact between the brackets 16 is achieved by the third spring 14 squeezing the first pressure block 18 to effectively contact the first conductive sheet 4, thereby effectively contacting the first conductive sheet 4 with the first conductive bracket 16, so that the first conductive sheet 4 can be effectively connected to the output end of the power supply through the first conductive bracket 16; similarly, the effective contact between the second conductive sheet 5 and the second conductive bracket 17 is achieved by the fourth spring 15 squeezing the second pressure block 19 to effectively contact the second conductive sheet 5, thereby effectively contacting the second conductive sheet 5 with the second conductive bracket 17, so that the second conductive sheet 5 can be effectively connected to the input end of the electric vehicle transmission 11 through the second conductive bracket 17.

[0032] In summary, through the joint action of the first spring 12, the second spring 13, the third spring 14 and the fourth spring 15, it can be effectively ensured that the first conductive sheet 4 is in effective contact with the first conductive bracket 16 and the conductive clip 9, and the second conductive sheet 5 is in effective contact with the second conductive bracket 17 and the conductive clip 9, so that the handlebar of the vehicle can effectively avoid sudden power failure caused by poor contact.

[0033] When the user's hand leaves the handle shell 6, under the reverse thrust of the reverse thrust spring 2, the translation propulsion rod 1 together with the modified propulsion rod sheath 20 can be translated and reset in the reverse direction along the dovetail groove 7 within one second, driving the conductive component at the end of the translation propulsion rod 1 to move out of the gap between the first conductive sheet 4 and the second conductive sheet 5, so that the conductive clip 9 on the positioning block 8 is separated from the first conductive sheet 4 and the second conductive sheet 5, and the first conductive sheet 4 and the second conductive sheet 5 are disconnected, that is, the electric vehicle transmission 11 is disconnected from the electric vehicle power supply, and the electric vehicle is powered off. At this time, only rotating the handle shell 6 cannot drive the electric vehicle to accelerate forward.

[0034] This design adds a translation propulsion rod 1, a power cord separation mechanism and a reverse thrust spring 2 on the basis of not changing any function of the electric vehicle speed handlebar, so that the electric vehicle handlebar can automatically connect to the power supply and accelerate forward within one second; and can be powered off within one second after no one is holding it. After the power is off, no matter how the child rotates the electric vehicle handlebar, the electric vehicle will never move forward, effectively avoiding the occurrence of injuries caused by children's misoperation of the handlebar.

[0035] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric vehicle speed-changing safety handle with automatic power-off, characterized in that: The invention comprises a handle housing (6), a power line separation mechanism, a translation propulsion rod (1) and a reverse thrust spring (2); in the power line separation mechanism, a housing (3) is fixedly connected to the handle housing (6), a first conductive sheet (4) is connected to the output end of the electric vehicle power supply, a second conductive sheet (5) is connected to the input end of the electric vehicle transmission (11), a gap of a preset spacing is provided between the first conductive sheet (4) and the second conductive sheet (5), and the two are arranged horizontally opposite to each other; the translation propulsion rod (1) is slidably connected to the handle housing (6), and a conductive component is fixed to one end of the translation propulsion rod (1) facing the gap between the first conductive sheet (4) and the second conductive sheet (5); when the conductive component is located between the first conductive sheet (4) and the second conductive sheet (5), the first conductive sheet (4) and the second conductive sheet (5) are conductively connected; the reverse thrust spring (2) is used to push the translation propulsion rod (1) in the reverse direction so that the conductive component moves out of the gap; In the power cord separation mechanism, one end of the first spring (12) is fixedly connected to the first conductive sheet (4), and the other end is fixedly connected to the housing (3); one end of the second spring (13) is fixedly connected to the second conductive sheet (5), and the other end is fixedly connected to the housing (3); the first spring (12), the first conductive sheet (4), the second conductive sheet (5) and the second spring (13) are coaxially arranged in sequence; The first conductive sheet (4) is connected to the output end of the electric vehicle power supply via a first conductive bracket (16) fixedly connected to the housing (3), and the second conductive sheet (5) is connected to the input end of the electric vehicle transmission (11) via a second conductive bracket (17) fixed to the housing (3); The first conductive sheet (4) is in sliding contact with the first conductive support (16), and the second conductive sheet (5) is in sliding contact with the second conductive support (17); In the power line separation mechanism, one end of a third spring (14) arranged perpendicularly to the first spring (12) is fixedly connected to the housing (3), and the other end is fixedly connected to a first pressure block (18), and the first pressure block (18) and the first conductive bracket (16) are respectively located on both sides of the first conductive sheet (4); one end of a fourth spring (15) arranged perpendicularly to the second spring (13) is fixedly connected to the housing (3), and the other end is fixedly connected to a second pressure block (19), and the second pressure block (19) and the second conductive bracket (17) are respectively located on both sides of the second conductive sheet (5).

2. The electric vehicle speed change safety handle with automatic power-off according to claim 1, characterized in that: The conductive component comprises a positioning block (8) and a conductive clip (9), wherein the positioning block (8) is fixed to one end of the translation propulsion rod (1), and the conductive clip (9) is clamped on the outer wall of the positioning block (8); when the conductive component is located between the first conductive sheet (4) and the second conductive sheet (5), two sides of the conductive clip (9) are respectively in effective contact with the first conductive sheet (4) and the second conductive sheet (5).

3. The electric vehicle speed change safety handle with automatic power-off according to claim 2, characterized in that: An arc-shaped guide block (10) is also fixed to one end of the positioning block (8) facing the gap between the first conductive sheet (4) and the second conductive sheet (5).

4. The electric vehicle speed change safety handle with automatic power-off according to claim 2, characterized in that: One end of the reverse thrust spring (2) is fixedly connected to the lower part of one end of the translation propulsion rod (1) to which the positioning block (8) is fixed, and the other end is fixedly connected to the handle housing (6), and the reverse thrust spring (2) is parallel to the translation direction of the translation propulsion rod (1).

5. The electric vehicle speed change safety handle with automatic power-off according to claim 2, characterized in that: The preset spacing is smaller than the width of the positioning block (8).

6. The electric vehicle speed change safety handle with automatic power-off according to claim 1, characterized in that: The translation propulsion rod (1) and the housing (6) are slidably connected via a dovetail groove (7) on the housing (6).

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