Limit switch of electric kickstand

Abstract

The utility model relates to a limit switch of an electric kickstand, and relates to the field of kickstand devices. The limit switch of the electric kickstand comprises a pin, a reed, a linkage shaft and a base, the pin is fixed on the base, the base is fixed in the electric kickstand, the reed is movably connected to the base, the linkage shaft is connected to the base in a sliding mode, the linkage shaft drives the reed to slide when being stressed, the limit switch further comprises a sliding seat connected to the base in a sliding mode, and the reed is fixed on the side, facing the linkage shaft, of the sliding seat. A sleeve is fixed to the other side of the sliding base and sleeved with a reset spring, one end of the reset spring abuts against the sliding base, the other end of the reset spring abuts against the base, a receding groove for providing a sliding space for the sleeve is formed in the base, and when the linkage shaft drives the sliding base to slide, the end of the sleeve slides into the receding groove. The length of the receding groove is larger than the sliding stroke length of the sleeve when the motor of the electric kickstand is closed. The kickstand has the effect that the limiting switch is not prone to being damaged when the kickstand continues to be pulled in the motor shutdown state.

Description

Technical Field

[0001] This application relates to the field of foot support devices, and more particularly to a limit switch for an electric foot support. Background Technology

[0002] A kickstand is a support structure used on motorcycles or electric vehicles. To facilitate the support and retrieval of kickstands for electric vehicles, many electric kickstand devices have appeared on the market. Electric kickstands control the start and stop of the motor by installing a side kickstand switch on the kickstand. The side kickstand switch often uses a micro switch, which connects and disconnects the circuit through a spring contact with a moving contact and a stationary contact.

[0003] The motor and gears of the electric kickstand drive the pressure block of the microswitch. The rotation of the gears moves the pressure block to contact the microswitch, thus activating the microswitch circuit to control the motor's on / off state. After the motor gears cause the microswitch to shut off the motor, a rubber block at the stop point protects the gear. The deformation of this rubber block provides some margin for the gear to continue rotating. Therefore, the kickstand can be manually operated to continue rotating the gear. This continued rotation causes the pressure block to further compress the microswitch. However, because the microswitch has a small stroke, there is almost no margin for the pressure block to move further, which can easily damage the microswitch with continued pressure. Utility Model Content

[0004] To address the problem that the short travel of the microswitch makes it easy to damage the microswitch when the foot support is turned off, this application provides a limit switch for an electric foot support.

[0005] The limit switch for an electric footrest provided in this application adopts the following technical solution:

[0006] A limit switch for an electric kickstand includes pins, a spring, a connecting shaft, and a base. Two pins are provided, and the pins are fixed to the base, which is fixed inside the electric kickstand. The spring is movably connected to the base, and the connecting shaft is slidably connected to the base. The connecting shaft, when subjected to force, drives the spring to slide. The spring slides until it disengages from the pin, thereby controlling the motor of the electric kickstand to shut off. The switch is characterized by further comprising:

[0007] A slide block is slidably connected to a base. A spring is fixed to the side of the slide block facing the connecting shaft. A sleeve is fixed to the other side of the slide block along its sliding direction. A return spring is fitted on the sleeve. One end of the return spring abuts against the slide block, and the other end abuts against the base. The base has a clearance groove that provides sliding space for the sleeve. When the connecting shaft drives the slide block to slide, the return spring is compressed, and the end of the sleeve slides into the clearance groove. The length of the clearance groove is greater than the travel length of the sleeve when the motor of the electric foot support is turned off, so that when the motor of the electric foot support is turned off, there is still space in the clearance groove for the sleeve to continue sliding.

[0008] By adopting the above technical solution, in the initial state, the spring contact with the pin keeps the motor of the electric kickstand in the starting state. When the connecting shaft is subjected to external force, it drives the slide to move, which in turn moves the spring to disengage from the pin, thus disconnecting the spring from the pin and switching the motor of the electric kickstand to the off state. During the movement of the slide and the spring, the slide abuts against the return spring, causing the return spring to compress in the direction of the slide's movement. The sleeve slides into the clearance groove. When the spring is disconnected from the pin and the electric kickstand is in the off state, the end of the sleeve is located in the clearance groove, and there is still space in the clearance groove for the sleeve to continue sliding. Therefore, even after the motor of the electric kickstand is off, if the electric kickstand is manually operated to continue driving the sliding shaft to move the slide, because there is still space in the clearance groove, the sleeve is unlikely to hit the groove wall as it continues to slide into the clearance groove, and the limit switch of the electric kickstand is unlikely to be damaged.

[0009] Preferably, the base is provided with a sliding groove for the slide block to slide, one end of the connecting shaft extends into the sliding groove to abut against the slide block, one end of the return spring abuts against the groove wall on the side of the sliding groove away from the connecting shaft, and the sliding groove is connected to the relief groove so that the sleeve slides through the sliding groove into the relief groove.

[0010] Preferably, a protective seat surrounding the connecting shaft is fixed on the base. The protective seat has a receiving cavity for the connecting shaft to slide. The receiving cavity is connected to the slide groove. A protective sleeve is sleeved and fixed at the end of the connecting shaft away from the slide. One end of the protective sleeve extends out of the receiving cavity. The other end of the protective sleeve is provided with a limiting ring. The limiting ring abuts against the cavity wall of the receiving cavity to prevent the connecting shaft from coming out of the receiving cavity. The length of the receiving cavity is greater than the travel length of the limiting ring when the motor of the electric foot support is turned off, so that when the motor of the electric foot support is turned off, there is still receiving space in the receiving cavity for the limiting ring to continue to slide.

[0011] Preferably, the slide includes a fixed block and a driving block that are fixedly connected, the spring is fixed between the fixed block and the driving block, the connecting shaft abuts against the driving block to drive the spring to disengage from the pin, and the sleeve is fixed on the side of the fixed block away from the driving block.

[0012] Preferably, the driving block has buckles on both sides, and the fixing block has a slot for the buckles to engage. The buckles engage with the fixing block to fix the driving block and the fixing block.

[0013] Preferably, the reed includes an integrally formed connecting portion and an abutment strip, the abutment strip being used to abut against the pin, and the driving block having a pin on the side facing the reed, the pin passing through the connecting portion and being inserted into the fixing block, so that the reed is relatively fixed between the fixing block and the driving block.

[0014] Preferably, the pin includes an integrally formed plug portion and an abutment portion, the plug portion being used to connect to an external circuit, and the abutment portion being used to abut against the abutment strip.

[0015] Preferably, the drive block has a through groove for receiving the abutment portion, the through groove passes through the side of the drive block facing the linkage shaft, and the drive block also has a limiting groove for receiving the abutment strip, the through groove and the limiting groove are interconnected, and the abutment strip abuts or disengages from the pin in the limiting groove.

[0016] Preferably, the bottom of the groove is provided with a guide post along the sliding direction of the slide block, and the guide post is used to guide the sliding of the slide block.

[0017] Preferably, the base is covered with a shell, and the shell is fixedly connected to the base.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] The switch travel is controllable, the limit switch is difficult to be damaged by impact. The length of the clearance groove is set to be greater than the travel length of the sleeve when the motor of the electric foot support is turned off. The specific clearance groove length can be set according to the deformation of the rubber block at the gear of the electric foot support motor, providing the sleeve with sliding space and preventing the sleeve from hitting the clearance groove wall and causing the limit switch to be damaged.

[0020] High precision and good contact stability; the pin is fixed on the slide, and the spring is fixed between the drive block and the fixed block, making it difficult to wobble. The slide can only move in one direction within the slide groove guided by the guide post, so the spring and the pin can make stable contact.

[0021] The switch has a good sealing effect. The protective seat and protective sleeve prevent the linkage shaft from directly contacting the outside. The outer shell covers the base and seals the cavity on the base, providing excellent waterproof and dustproof performance. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the limiting mechanism of the electric foot support in the embodiments of this application.

[0023] Figure 2 This is another three-dimensional structural schematic diagram of the limiting mechanism of the electric foot support in the embodiments of this application.

[0024] Figure 3 This is a three-dimensional structural diagram of the limit switch of the electric foot support in the embodiments of this application.

[0025] Figure 4 This is an exploded view of the limit switch of the electric foot support in the embodiments of this application.

[0026] Figure 5 This is another exploded view of the limit switch of the electric foot support in the embodiments of this application.

[0027] Figure 6 This is another exploded view of the limit switch of the electric foot support in the embodiments of this application.

[0028] Figure 7 This is another exploded view of the limit switch of the electric foot support in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Rotating shaft; 2. Support block; 3. Pin; 4. Spring; 5. Linking shaft; 6. Slide; 7. Base; 71. Sleeve; 711. Return spring; 72. Relief groove; 73. Slide groove; 74. Guide post; 75. Protective seat; 751. Receiving cavity; 51. Protective sleeve; 511. Limiting ring; 61. Fixing block; 62. Driving block; 621. Buckle; 611. Slot; 41. Connecting part; 42. Abutting strip; 622. Pin; 31. Insertion part; 32. Abutting part; 623. Through groove; 624. Limiting groove; 612. Guide groove; 8. Outer shell; 81. Sealing seat; 82. Sealing cover; 811. Limiting seat. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] This application discloses a limiting mechanism for an electric foot support. (Refer to...) Figure 1 and Figure 2The limiting mechanism of the electric kickstand includes a rotating shaft 1 linked to the gear of the electric kickstand motor and a limit switch of the electric kickstand. The limit switch is used to control the starting and stopping of the electric kickstand motor. The starting and stopping of the electric kickstand motor can control the stopping of the kickstand, realizing the automatic lowering and retraction of the kickstand. The rotating shaft 1 is coaxially rotatably connected to the gear of the electric kickstand motor. A retaining block 2 is fixed on the rotating shaft 1. The retaining block 2 is used to abut against the limit switch of the electric kickstand to change the state of the limit switch. In the initial state, the retaining block 2 is disengaged from the limit switch of the electric kickstand, and the circuit of the limit switch of the electric kickstand is in a continuous state. When the gear of the electric kickstand motor drives the rotating shaft 1 to rotate, causing the retaining block 2 to rotate to abut against the limit switch of the electric kickstand, the circuit of the limit switch of the electric kickstand is disconnected to indicate that the electric kickstand motor is turned off.

[0032] Reference Figure 3 and Figure 4 The limit switch of the electric footrest includes pins 3, springs 4, a connecting shaft 5, a slide 6, and a base 7. There are two pins 3. The spring 4 contacts or disengages from the two pins 3, connecting or disconnecting them to control the circuit's on / off state. Pins 3 are fixed to the base 7, and the spring 4 is fixed to the slide 6, which is slidably connected to the base 7. Initially, the spring 4 contacts the two pins 3, connecting the circuit. One end of the connecting shaft 5 extends into the base 7 to drive the slide 6, and the other end extends out of the base 7 to contact the abutment block 2. A sleeve 71 is fixed to the side of the slide 6 opposite to the connecting shaft 5. A return spring 711 is fitted on the sleeve 71, with one end of the return spring 71 abutting the slide 6 and the other end abutting the base 7. The base 7 is provided with a clearance groove 72 to provide sliding space for the sleeve 71. The clearance groove 72 is only large enough for the sleeve 71 to pass through. When the abutment block 2 rotates to abut the linkage shaft 5, causing the linkage shaft 5 to drive the slide block 6 to slide into the base 7, the spring 4 disengages from the two pins 3, breaking the circuit. The end of the sleeve 71 slides into the clearance groove 72, and the return spring 711 is blocked outside the clearance groove 72 and abuts against the base 7. The slide block 6 slides, causing the return spring 711 to be compressed. When the abutment block 2 disengages from the linkage shaft 5, the spring force of the return spring 711 to restore its original state drives the slide block 6 and the linkage shaft 5 to reset.

[0033] Furthermore, the length of the clearance groove 72 is greater than the travel length of the sleeve 71 when the motor of the electric kickstand is off. When the motor of the electric kickstand is off, the rubber block connected to the gear stop of the electric kickstand motor has a certain deformation allowance, so that when the kickstand is manually operated, the rotating shaft 1 can still rotate a certain distance, causing the abutment block 2 to further press the connecting shaft 5. The connecting shaft 5 can drive the slide 6 to continue sliding a certain distance. Correspondingly, the sleeve 71 continues to slide a certain distance in the clearance groove 72. Setting the length of the clearance groove 72 to be greater than the travel length of the sleeve 71 when the motor of the electric kickstand is off ensures that when the motor of the electric kickstand is off, there is still space in the clearance groove 72 for the sleeve 71 to continue sliding. The sleeve 71 is unlikely to contact the inner wall of the clearance groove 72 away from the slide 6, thus it is not easily damaged.

[0034] The base 7 is provided with a sliding groove 73 for the slide block 6 to slide in. The slide block 6 is installed in the sliding groove 73. One end of the connecting shaft 5 extends into the sliding groove 73 to abut against the slide block 6. One end of the return spring 711 abuts against the slide block 6, and the other end of the return spring 711 abuts against the groove wall of the sliding groove 73 away from the connecting shaft 5. The sliding groove 73 is connected to the relief groove 72. When the slide block 6 slides, the sleeve 71 slides through the sliding groove 73 into the relief groove 72. To prevent the slide block 6 from deviating during sliding, the bottom of the sliding groove 73 is provided with guide posts 74 along the sliding direction of the slide block 6. The guide posts 74 enable the slide block 6 to slide in a fixed direction. Preferably, the guide posts 74 are located symmetrically on the bottom of the sliding groove 73 relative to the relief groove 72. Multiple guide posts 74 make the sliding of the slide block 6 more stable. Obviously, the length of the slide 73 must be able to accommodate the slide 6 and the sleeve 71, and there must be space for the slide 6 to slide. In addition, when the motor of the electric foot support is turned off, there is a gap between the stopping position of the slide 6 and the groove wall of the slide 73 on the side away from the connecting shaft 5, so as to prevent the slide 6 from being damaged by hitting the groove wall of the slide 73.

[0035] A protective seat 75 surrounding the connecting shaft 5 is fixed on the base 7. The protective seat 75 has a receiving cavity 751 for the sliding of the connecting shaft 5. The receiving cavity 751 is connected to the slide groove 73. One end of the connecting shaft 5 slides into the slide groove 73 through the receiving cavity 751. A protective sleeve 51 is sleeved and fixed on the end of the connecting shaft 5 away from the slide block 6. One end of the protective seat 75 has an opening so that one end of the protective sleeve 51 extends out of the receiving cavity 751 and abuts against the abutment block 2. The other end of the protective sleeve 51 is provided with a limiting ring 511. The limiting ring 511 is located in the receiving cavity 751. The diameter of the limiting ring 511 is larger than the diameter of the opening of the protective seat 75. The limiting ring 511 abuts against the cavity wall of the receiving cavity 751 on the side away from the slide block 6 to prevent the protective sleeve 51 from completely dislodging from the receiving cavity 751. Furthermore, the length of the receiving cavity 751 is greater than the travel length of the limiting ring 511 when the motor of the electric foot support is turned off, so that when the motor of the electric foot support is turned off, there is still space in the receiving cavity 751 for the limiting ring 511 to continue to slide, thereby preventing the limiting ring 511 from colliding with the cavity wall of the receiving cavity 751 near the slide 6 and damaging the protective sleeve 51.

[0036] Reference Figure 4 and Figure 5 The slide block 6 includes a fixed block 61 and a drive block 62 fixedly connected. A spring 4 is fixed between the fixed block 61 and the drive block 62. A connecting shaft 5 abuts against the drive block 62 to cause the slide block 6 to slide, thereby causing the spring 4 to slide. A sleeve 71 is fixed on the side of the fixed block 61 away from the drive block 62. In one embodiment, the drive block 62 has buckles 621 on both sides, and the fixed block 61 is provided with a slot 611 for the buckles 621 to engage. The buckles 621 engage with the slots 611 to fix the drive block 62 onto the fixed block 61.

[0037] The reed 4 includes an integrally formed connecting portion 41 and abutting strips 42. The abutting strips 42 are used to abut against the pins 3. At least one abutting strip 42 is connected to each pin 3 in a one-to-one correspondence, so that the two pins 3 are connected. Preferably, there are two pairs of abutting strips 42, which are located on the upper and lower sides of the connecting portion 41, respectively, and abut against the two pins 3. The connecting portion 41 is clamped between the driving block 62 and the fixing block 61. The driving block 62 has a pin 622 on the side facing the reed 4. The pin 622 passes through the connecting portion 41 and is inserted into the fixing block 61, so that the reed 4 is relatively fixed between the fixing block 61 and the driving block 62.

[0038] Pin 3 includes an integrally formed plug portion 31 and abutment portion 32. The abutment portion 32 passes through and is fixed on the base 7. In the initial state, the abutment portion 32 abuts against the contact strip 42 to connect the circuit. The plug portion 31 extends out of the base 7 to connect with the external circuit.

[0039] The drive block 62 has a through groove 623 extending through it towards the connecting shaft 5. The through groove 623 provides space for the abutment part 32, which is initially located within the through groove 623. The drive block 62 also has a limiting groove 624 for accommodating the abutment strip 42. The through groove 623 and the limiting groove 624 are interconnected. Initially, the abutment strip 42 is located within the limiting groove 624 and abuts against the abutment part 32. The fixing block 61 has a guide groove 612 that cooperates with the guide post 74 to guide the sliding of the slide block 6.

[0040] Reference Figure 6 and Figure 7 A housing 8 is fitted onto the base 7 and is fixedly connected to the base 7, so that the components of the switch are in a relatively sealed space, thereby achieving waterproofing and dustproofing. Specifically, the housing 8 includes a sealing seat 81 and a sealing cover 82. The sealing seat 81 is fixedly connected to the base 7, and the fixing method can be bolt tightening or the like. The plug-in part 31 passes through the sealing seat 81, and the sealing seat 81 is also provided with a limiting seat 811 for limiting and fixing the plug-in part 31. The plug-in part 31 is snapped and fixed on the limiting seat 811. The sealing cover 82 is fixed on the sealing seat 81 to cover the plug-in part 31, and the sealing cover 82 is provided with an interface for the plug-in part 31 to connect to an external circuit.

[0041] The implementation principle of the limit switch of the electric foot support in this embodiment is as follows: the protective sleeve 51 is driven by the abutment block 2 to slide the connecting shaft 5 in the receiving cavity 751. The connecting shaft 5 abuts against the driving block 62, causing the slide 6 to slide in the sliding groove 73. This causes the spring 4 fixed between the driving block 62 and the fixed block 61 to move away from the pin 3, and the abutment strip 42 to disengage from the abutment part 32, thus breaking the circuit. During the sliding of the slide 6, the guide post 74 and the guide groove 612 cooperate to guide the sliding of the slide 6. The return spring 711 abuts against the groove wall of the sliding groove 73 on the side away from the connecting shaft 5 and is compressed. The sleeve 71 moves into the relief groove 72. When the slide block 6 slides until the contact strip 42 disengages from the contact part 32, turning off the motor of the electric foot support, there is a gap between the limiting ring 511 and the cavity wall of the receiving cavity 751 near the slide block 6, a gap between the slide block 6 and the groove wall of the slide groove 73 away from the connecting shaft 5, and a gap between the end of the sleeve 71 and the groove wall of the relief groove 72 away from the slide block 6. Therefore, after the motor of the electric foot support is turned off, when the foot support is manually moved to make the abutment block 2 continue to hold the protective sleeve 51 and drive the connecting shaft 5 to slide against the slide block 6, the limiting ring 511, the slide block 6, and the sleeve 71 are unlikely to collide with the inner wall of the base 7, thus making the limit switch of the electric foot support less likely to be damaged.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A limit switch for an electric kickstand, comprising pins (3), a spring (4), a connecting shaft (5), and a base (7), wherein two pins (3) are provided, the pins (3) are fixed on the base (7), the base (7) is fixed inside the electric kickstand, the spring (4) is movably connected to the base (7), the connecting shaft (5) is slidably connected to the base (7), the connecting shaft (5) is driven by force to slide the spring (4), the spring (4) slides until it disengages from the pin (3) to control the motor of the electric kickstand to shut off, characterized in that, Also includes: A slide (6) is slidably connected to a base (7). A spring (4) is fixed on the side of the slide (6) facing the connecting shaft (5). A sleeve (71) is fixed on the other side of the slide (6) along the sliding direction of the slide (6). A return spring (711) is sleeved on the sleeve (71). One end of the return spring (711) abuts against the slide (6), and the other end of the return spring (711) abuts against the base (7). The base (7) The sleeve (71) is provided with a clearance groove (72) to provide sliding space for the sleeve (71). When the connecting shaft (5) drives the slide (6) to slide, the return spring (711) is compressed, and the end of the sleeve (71) slides into the clearance groove (72). The length of the clearance groove (72) is greater than the travel length of the sleeve (71) when the motor of the electric foot support is turned off, so that when the motor of the electric foot support is turned off, there is still space in the clearance groove (72) for the sleeve (71) to continue to slide.

2. The limit switch of the electric foot support according to claim 1, characterized in that: The base (7) is provided with a sliding groove (73) for the slide block (6) to slide. One end of the connecting shaft (5) extends into the sliding groove (73) to abut against the slide block (6). One end of the return spring (711) abuts against the groove wall of the sliding groove (73) away from the connecting shaft (5). The sliding groove (73) is connected to the relief groove (72) so that the sleeve (71) slides through the sliding groove (73) into the relief groove (72).

3. The limit switch of the electric foot support according to claim 2, characterized in that: A protective seat (75) surrounding the connecting shaft (5) is fixed on the base (7). The protective seat (75) has a receiving cavity (751) for the sliding of the connecting shaft (5). The receiving cavity (751) is connected to the slide groove (73). A protective sleeve (51) is fitted and fixed to the end of the connecting shaft (5) away from the slide (6). One end of the protective sleeve (51) extends out of the receiving cavity (751). The other end of the shaft (5) is provided with a limiting ring (511), which abuts against the cavity wall of the receiving cavity (751) to prevent the connecting shaft (5) from dislodging from the receiving cavity (751). The length of the receiving cavity (751) is greater than the travel length of the limiting ring (511) when the motor of the electric foot support is turned off, so that when the motor of the electric foot support is turned off, there is still space in the receiving cavity (751) for the limiting ring (511) to continue to slide.

4. The limit switch of the electric foot support according to claim 2 or 3, characterized in that: The slide (6) includes a fixed block (61) and a drive block (62) that are fixedly connected. The spring (4) is fixed between the fixed block (61) and the drive block (62). The connecting shaft (5) abuts against the drive block (62) to drive the spring (4) to disengage from the pin (3). The sleeve (71) is fixed on the side of the fixed block (61) away from the drive block (62).

5. The limit switch of the electric foot support according to claim 4, characterized in that: The drive block (62) has buckles (621) on both sides, and the fixing block (61) has a slot (611) for the buckles (621) to engage. The buckles (621) engage with the fixing block (61) to fix the drive block (62) and the fixing block (61).

6. The limit switch of the electric foot support according to claim 4, characterized in that: The spring (4) includes an integrally formed connecting part (41) and a contact strip (42). The contact strip (42) is used to abut against the pin (3). The driving block (62) has a pin (622) on the side facing the spring (4). The pin (622) passes through the connecting part (41) and is inserted into the fixing block (61) so that the spring (4) is relatively fixed between the fixing block (61) and the driving block (62).

7. The limit switch of the electric foot support according to claim 6, characterized in that: The pin (3) includes an integrally formed plug portion (31) and abutment portion (32). The plug portion (31) is used to connect to an external circuit, and the abutment portion (32) is used to abut against the abutment strip (42).

8. The limit switch of the electric foot support according to claim 7, characterized in that: The drive block (62) has a through groove (623) for receiving the abutment part (32). The through groove (623) passes through the drive block (62) on the side facing the linkage shaft (5). The drive block (62) also has a limiting groove (624) for receiving the abutment strip (42). The through groove (623) and the limiting groove (624) are connected. The abutment strip (42) abuts against or disengages from the pin (3) in the limiting groove (624).

9. The limit switch of the electric foot support according to claim 2, characterized in that: The bottom of the groove (73) is provided with a guide post (74) along the sliding direction of the slide block (6), and the guide post (74) is used to guide the slide block (6) to slide.

10. The limit switch of the electric foot support according to claim 1, characterized in that: The base (7) is covered with a shell (8), and the shell (8) is fixedly connected to the base (7).

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