Electric bicycle with adjustable seat

Abstract

The utility model discloses a rear seat adjustable electric bicycle, aims at solving the problem of the fixed design of the rear seat of the existing electric bicycle, when facing the people of different body shapes, cannot carry out adaptive adjustment, and is inconvenient for carrying different specifications of goods. Its technical scheme main points are: a rear seat adjustable electric bicycle, including the frame main part, the tail of frame main part is equipped with the support component, and the mobile component is slid along the front and back direction and is equipped on the support component, and the surface of mobile component is equipped with the cushion, and the length direction of positioning shaft is perpendicular to the length direction of support component. The utility model discloses a rear seat adjustable electric bicycle, through setting up the positioning shaft of elastic telescopic, positioning block and the guiding piece with the sliding slot, the positioning groove, and the user only needs to press the positioning shaft and makes the positioning block exit the positioning groove, can promote the mobile component and carry out the front and back adjustment along the support component, and the operation is simple, realizes the quick flexible adjustment of electric bicycle rear seat position.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and more specifically, to an electric bicycle with an adjustable rear seat. Background Technology

[0002] Electric bicycles are two-wheeled bicycles that use onboard batteries as auxiliary power and have the ability to be pedaled. With their advantages of convenience, environmental friendliness, and economy, they have become an important means of transportation for people's daily short-distance travel.

[0003] In practical use, electric bicycles are usually equipped with a rear seat to meet the needs of people traveling in groups, such as parents picking up and dropping off their children at school. On the other hand, the rear seat can also play a certain role in carrying small items when shopping or moving them.

[0004] However, the existing electric bicycles have a fixed rear seat design, which cannot be adjusted to accommodate people of different body types. This results in poor comfort for users with mismatched body sizes and makes it inconvenient to carry goods of different sizes. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an electric bicycle with an adjustable rear seat. By setting up an elastically retractable positioning shaft, a positioning block, and a guide plate with a sliding groove and a positioning slot, the user only needs to press the positioning shaft to make the positioning block disengage from the positioning slot, and then push the moving component to adjust the position forward and backward along the support component. The operation is simple and realizes the quick and flexible adjustment of the rear seat position of the electric bicycle.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable rear seat electric bicycle, including a frame body, a support member at the rear of the frame body, a movable member slidably mounted on the support member in the front-rear direction, a seat cushion mounted on the surface of the movable member, a positioning shaft mounted on the support member, the length direction of the positioning shaft being perpendicular to the length direction of the support member, and one end of the positioning shaft elastically telescopically engaging with the support member, the other end of the positioning shaft extending to the outside of the support member, two positioning blocks fixedly mounted on the positioning shaft, two guide plates mounted on the movable member, each of the two guide plates having a sliding groove for the positioning shaft to slide, and a plurality of positioning grooves evenly provided on the sliding groove, the inner diameter of the positioning groove being adapted to the outer diameter of the positioning block.

[0007] The present invention is further configured such that: positioning sleeves are symmetrically arranged on the supporting member, and at least one of the positioning sleeves is provided with a spring; the two ends of the positioning shaft are respectively located in the two positioning sleeves and slide in cooperation with them; a positioning pin is provided on the outer wall of the positioning shaft; and a groove is provided on the positioning sleeve for the positioning pin to slide.

[0008] The present invention is further configured such that: one end of the positioning shaft located outside the support member is rotatably connected to a limiting sleeve, the edge of the limiting sleeve is provided with a limiting rod, and the support member is provided with a limiting piece for abutting the limiting rod.

[0009] The present invention is further configured such that: a fixed track is provided at the top of the supporting member, and a sliding track is provided at the bottom of the movable member, wherein the sliding track and the fixed track are guided and cooperated.

[0010] The present invention is further configured such that the positioning block has a chamfer on the side facing the positioning groove.

[0011] In summary, this utility model has the following beneficial effects: This application, by setting up a retractable positioning shaft, positioning block, and guide plate with sliding groove and positioning slot, allows users to simply press the positioning shaft to disengage the positioning block from the positioning slot, thereby pushing the moving component to adjust forward and backward along the support component. The operation is simple and enables quick and flexible adjustment of the rear seat position of the electric bicycle to accommodate users of different body types or carry goods of different sizes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the electric bicycle according to this utility model; Figure 2 This is a schematic diagram of the structure of the moving component and the supporting component of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the moving component and the supporting component of this utility model. Figure 2 ; Figure 4 for Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the positioning shaft, positioning sleeve, and spring of this utility model.

[0013] In the diagram: 1. Main frame; 2. Supporting component; 3. Moving component; 4. Seat cushion; 5. Positioning shaft; 6. Positioning block; 7. Guide plate; 8. Slide groove; 9. Positioning groove; 10. Positioning sleeve; 11. Spring; 12. Positioning pin; 13. Groove; 14. Limiting sleeve; 15. Limiting rod; 16. Limiting piece; 17. Fixed track. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0015] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will now be described in detail with reference to the accompanying drawings.

[0018] Reference Figures 1-5 An adjustable rear seat electric bicycle includes a frame body 1. A support member 2 is fixedly provided at the rear of the frame body 1. A movable member 3 is slidably provided on the support member 2 along the front-rear direction. A seat cushion 4 is fixedly provided on the surface of the movable member 3. A positioning shaft 5 is provided on the support member 2. The length direction of the positioning shaft 5 is perpendicular to the length direction of the support member 2. One end of the positioning shaft 5 is elastically telescopically engaged with the support member 2. The other end of the positioning shaft 5 extends to the outside of the support member 2. Two positioning blocks 6 are fixedly sleeved on the positioning shaft 5. Two guide plates 7 are fixedly provided on the movable member 3. Each of the two guide plates 7 has a sliding groove 8 for the positioning shaft 5 to slide. A plurality of positioning grooves 9 are evenly provided on the sliding groove 8. The inner diameter of the positioning groove 9 is adapted to the outer diameter of the positioning block 6. In this embodiment, there are three positioning grooves 9, that is, the position adjustment of the rear seat has three adjustable positions.

[0019] Additionally, symmetrical positioning sleeves 10 are fixed on the support member 2, and at least one positioning sleeve 10 is fixedly provided with a spring 11. In this embodiment, a compression spring is provided in the positioning sleeve 10 away from the pressing end. The two ends of the positioning shaft 5 are respectively located in the two positioning sleeves 10 and slide in cooperation with them. A positioning pin 12 is fixedly provided on the outer wall of the positioning shaft 5, and a groove 13 for the positioning pin 12 to slide is provided on the positioning sleeve 10. When the positioning shaft 5 is pressed to adjust the seat position, the positioning shaft 5 slides into the positioning sleeve 10 under pressure. Positioning pin 12 slides along the groove 13 on positioning sleeve 10, while compressing spring 11 inside positioning sleeve 10. When positioning shaft 5 is released, the elastic restoring force of spring 11 pushes positioning shaft 5 outward, and positioning pin 12 slides in groove 13 until positioning shaft 5 returns to its initial position, realizing the elastic extension and retraction function of positioning shaft 5, assisting in the adjustment and positioning of rear seat position. The sliding range generated by positioning shaft 5 when under force is affected by the cooperation of groove 13 and positioning pin 12, which improves the accuracy and reliability of rear seat position adjustment.

[0020] The positioning shaft 5 is rotatably connected to a limiting sleeve 14 at one end outside the support member 2. A limiting rod 15 is fixedly provided on the edge of the limiting sleeve 14. A limiting piece 16 is fixedly provided on the support member 2 to abut against the limiting rod 15. In order to prevent the positioning shaft 5 from being accidentally pressed, the limiting sleeve 14 is in a certain deflection position under normal conditions, so that the limiting rod 15 abuts against the limiting piece 16, which plays a role in preventing pressing. When the rear seat position needs to be adjusted, the limiting rod 15 is rotated to move away from the position of abutting the limiting piece 16. At this time, the pressing operation of the positioning shaft 5 and the adjustment of the rear seat position can be performed.

[0021] The top of the support member 2 is fixedly provided with a fixed rail 17, and the bottom of the moving member 3 is correspondingly fixed with a sliding rail. The sliding rail and the fixed rail 17 are guided and matched. The guide and matching design of the fixed rail 17 and the sliding rail can ensure that the movement trajectory of the moving member 3 is accurate during the adjustment process, avoid the moving member 3 from shaking or deviating when sliding, and improve the stability of the rear seat position adjustment.

[0022] The positioning block 6 has a chamfer on the side facing the positioning groove 9. When the positioning block 6 approaches the positioning groove 9, the chamfer can guide it, making it easier and smoother for the positioning block 6 to enter the positioning groove 9. Even if there is a small deviation between the positioning block 6 and the positioning groove 9, the chamfer can help the positioning block 6 automatically adjust its direction and smoothly fit into the positioning groove 9.

[0023] Working Principle: Compared to existing technologies, this electric bicycle allows for flexible adjustment of the rear seat position to accommodate passengers of different sizes or cargo carrying requirements. Specifically, pressing the positioning shaft 5 causes it to elastically contract, disengaging two positioning blocks 6 from the positioning grooves 9 of the guide plate 7. This releases the relative sliding constraint between the moving component 3 and the supporting component 2, allowing the operator to adjust the position of the seat cushion 4 by pushing the moving component 3 forward or backward as needed. When the seat cushion 4 approaches the desired position, releasing the pressure on the positioning shaft 5 causes it to retract under elastic restoring force, placing the positioning blocks 6 against one side of the guide plate 7. As the moving component 3 continues to fine-tune, the positioning grooves 9 on the guide plate 7 align with the positioning blocks 6 again, and the positioning blocks 6, under elastic action, re-engage with the positioning grooves 9, thus re-limiting the relative position of the moving component 3 and the supporting component 2, thereby adjusting the seat position.

[0024] This application, by setting up a retractable positioning shaft 5, a positioning block 6, and a guide piece 7 with a sliding groove 8 and a positioning slot 9, allows the user to simply press the positioning shaft 5 to make the positioning block 6 exit the positioning slot 9, thereby pushing the moving component 3 to adjust forward and backward along the support component 2. The operation is simple and realizes the quick and flexible adjustment of the rear seat position of the electric bicycle.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An electric bicycle with an adjustable rear seat, comprising a frame body (1), characterized in that: The rear of the frame body (1) is provided with a support member (2). A movable member (3) is slidably provided on the support member (2) along the front-rear direction. A seat cushion (4) is provided on the surface of the movable member (3). A positioning shaft (5) is provided on the support member (2). The length direction of the positioning shaft (5) is perpendicular to the length direction of the support member (2). One end of the positioning shaft (5) is elastically telescopically engaged with the support member (2). The other end of the positioning shaft (5) extends to the outside of the support member (2). Two positioning blocks (6) are fixedly sleeved on the positioning shaft (5). Two guide plates (7) are provided on the movable member (3). Each of the two guide plates (7) is provided with a sliding groove (8) for the positioning shaft (5) to slide. Several positioning grooves (9) are evenly provided on the sliding grooves (8). The inner diameter of the positioning grooves (9) is adapted to the outer diameter of the positioning blocks (6).

2. The adjustable rear seat electric bicycle according to claim 1, characterized in that: The support member (2) is symmetrically provided with positioning sleeves (10), and at least one of the positioning sleeves (10) is provided with a spring (11). The two ends of the positioning shaft (5) are respectively located in the two positioning sleeves (10) and slide in cooperation with them. The outer wall of the positioning shaft (5) is provided with a positioning pin (12), and the positioning sleeve (10) is provided with a groove (13) for the positioning pin (12) to slide.

3. The adjustable rear seat electric bicycle according to claim 1, characterized in that: The positioning shaft (5) is rotatably connected to a limiting sleeve (14) at one end outside the support member (2). The edge of the limiting sleeve (14) is provided with a limiting rod (15). The support member (2) is provided with a limiting piece (16) for abutting the limiting rod (15).

4. The adjustable rear seat electric bicycle according to claim 1, characterized in that: The top of the support member (2) is provided with a fixed track (17), and the bottom of the moving member (3) is provided with a corresponding sliding track, which is guided and cooperates with the fixed track (17).

5. The electric bicycle with an adjustable rear seat according to claim 1, characterized in that: The positioning block (6) has a chamfer on the side facing the positioning groove (9).

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