Electric car seat box with turnover backrest

Abstract

This utility model relates to an electric vehicle seat with a flip-up backrest. The seat includes a body, a seat cushion, a backrest, and a rotating assembly. The backrest frame end has a first receiving groove. The rotating assembly connects the two sides of the body and the backrest. Its fixing component is detachably installed on the side wall of the body and has a body connecting part and a rotating part with a second receiving groove. A locking disc is movably disposed in the second receiving groove, with a rotating shaft passing through its center and a protruding locking part on the side away from the body. A push-to-unlock disc is fixed in the first receiving groove and connected to the rotating shaft. A spring is disposed between the push-to-unlock disc and the bottom of the first receiving groove. The bottom of the first receiving groove has multiple locking grooves. Under normal conditions, the locking part engages with the locking grooves to maintain a fixed angle between the backrest and the seat cushion. Pressing the push-to-unlock disc overcomes the spring force and drives the locking disc to move, causing the locking part to disengage from the locking groove, releasing the backrest lock to allow flipping. This design is easy to operate, allows for flexible adjustment of the backrest angle, improves rider comfort, and enhances the practicality and functionality of the seat, making it a promising candidate for market application.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle technology, and in particular relates to an electric vehicle seat box with a flip-up backrest. Background Technology

[0002] In today's society, electric vehicles have become an important means of transportation for people's daily travel due to their significant advantages such as convenience, environmental friendliness, and economy. Electric tricycles are widely used in logistics delivery, short-distance passenger transport, and other fields. With the popularization of electric vehicles, users' needs for user experience and functionality are becoming increasingly diversified. As a key component of electric tricycles, the comfort and functionality of the seat are receiving much attention.

[0003] Currently, most electric vehicle seat structures are simple, offering only basic storage functions, mainly consisting of a box and a seat cushion. This traditional design has significant shortcomings in practical use. During riding, riders maintain the same sitting posture for extended periods without back support, easily leading to fatigue and reduced riding comfort. While some electric tricycles are equipped with adjustable backrests, the adjustment methods are complex and inconvenient. Common adjustments require manual knobs, bolts, and other tools for fixing and unlocking. In actual use, riders may frequently adjust the backrest angle due to changes in road conditions, transportation needs, or rest status. However, the complex adjustment process not only consumes a lot of time and energy but may also result in the backrest failing to adjust properly, or even becoming loose or detached, due to lack of tools or improper operation, seriously affecting safety and reliability. For example, if the backrest angle needs to be adjusted while riding, the rider must stop and find tools, potentially leading to accidents due to operational errors.

[0004] Furthermore, riders vary in height, build, and driving habits, resulting in different needs for backrest angles. Taller riders may need to adjust the backrest angle to achieve a comfortable seating position and good visibility, while shorter riders may need to adjust it to a smaller angle for better vehicle control. However, existing electric tricycle seat backrests mostly use a standardized design, failing to meet individual needs and making it difficult for riders to obtain the best riding experience.

[0005] Therefore, we need to develop an electric vehicle seat with a simple structure, convenient operation, and the ability to flexibly adjust the backrest angle according to the rider's needs while maintaining stability and reliability during the adjustment process. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides an electric vehicle seat box with a flip-up backrest.

[0007] This utility model is implemented as follows: an electric vehicle seat box with a flip-up backrest, characterized in that it includes: a box body with a seat cushion on it; a backrest with a first receiving groove at the end of the backrest frame; a rotating assembly connecting the two sides of the box body and the backrest, the rotating assembly including: a fixing member detachably installed on the side wall of the box body, the fixing member having a box body connecting part and a rotating part, the rotating part having a second receiving groove on the side facing the box body; and a locking disc movably disposed in the second receiving groove, the locking disc having a rotating shaft fixedly passing through its center, and the locking disc facing... A protruding locking part is provided on the side opposite to the housing; a press-type unlocking disc is fixedly disposed in the first receiving groove of the backrest and fixedly connected to the rotating shaft; a spring is disposed between the press-type unlocking disc and the bottom of the first receiving groove; the bottom of the first receiving groove is provided with multiple locking grooves; the locking part can be selectively engaged in the locking groove to maintain a fixed angle between the backrest and the seat cushion; pressing the press-type unlocking disc overcomes the elastic force of the spring, which drives the locking disc to move, causing the locking part to disengage from the locking groove, thereby releasing the lock of the backrest to allow it to be flipped. More preferably, there are two locking parts, symmetrically arranged with respect to the rotating shaft; two sets of locking grooves are correspondingly provided, each set including two locking grooves.

[0008] More preferably, the spring is a compression spring, with one end abutting against the press-type unlocking disc and the other end abutting against the bottom of the first receiving groove, providing elastic force under normal conditions to move the press-type unlocking disc away from the bottom of the first receiving groove and to engage the locking part with the locking groove.

[0009] More preferably, the rotating part of the fixing member is cylindrical, and the first receiving groove is a groove formed on the end face of the rotating part.

[0010] More preferably, the second receiving groove is provided with a rotation limiting groove concentric with the rotating shaft, and the locking disc is provided with a rotation positioning pin facing the bottom surface of the first receiving groove. The rotation positioning pin extends into the rotation limiting groove and can slide along it.

[0011] More preferably, the outer side of the fixing member is provided with a third receiving groove, the third receiving groove is provided with a pressure strip, the pressure strip has a connecting post extending toward the inner side of the box, and the fastening bolt passes through the fixing member from the inner side of the box and is threadedly connected to the connecting post.

[0012] The advantages and technical effects of this utility model are as follows: The electric vehicle seat with a flip-up backrest of this utility model has significant technical effects: First, it is convenient and efficient to operate. The rider only needs to press the push-button unlocking disc to overcome the spring force, which allows the locking part to disengage from the locking groove, releasing the backrest lock and enabling the flip-up mechanism. No additional tools are needed, saving time and effort and improving ease of use. Second, it has high stability and safety. Under normal conditions, the spring force keeps the locking part engaged in the locking groove, ensuring that the backrest and seat maintain a fixed angle and are not easily loosened during riding. The rotation positioning pin and rotation limit groove cooperate to limit the flip-up angle of the backrest, preventing excessive flipping and ensuring safety. This type of seat not only improves the rider's comfort but also enhances the practicality and functionality of the seat, meeting the needs of different users and having broad market application prospects. Attached Figure Description

[0013] Figure 1 This is a top view structural schematic diagram of this utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure in cross-section of the AA.

[0015] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 4 This utility model presents a three-dimensional structural diagram of the backrest and rotating assembly.

[0017] Figure 5 This is a schematic diagram of the structure with the inner locking disc removed;

[0018] Figure 6 This is a schematic diagram of the backrest structure;

[0019] Figure 7 and Figure 8 This is a schematic diagram of a fixed component structure;

[0020] Figure 9 This is a schematic diagram of the lock-up disc structure;

[0021] Figure 10 This is a schematic diagram showing the position and structure of the locking disc and the push-to-unlock disc;

[0022] Figure 11 This is a schematic diagram of the pressure strip structure.

[0023] In the diagram: 1. Box body; 2. Seat cushion; 3. Backrest; 31. First receiving groove; 32. Locking groove; 33. Anti-loosening bolt; 34. Locking groove; 4. Fixing component; 41. Box body connecting part; 42. Rotating part; 421. Second receiving groove; 422. Rotation limit groove; 423. Rotation limit pin; 43. Third receiving groove; 5. Locking disc; 51. Locking part; 6. Rotating shaft; 7. Press-type unlocking disc; 8. Spring; 81. Pressure strip; 82. Connecting column; 83. Fastening bolt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0025] Please see Figures 1 to 11 An electric vehicle seat box with a flip-up backrest includes: a box body 1 with a seat cushion 2 on it; a backrest 3 with a first receiving groove 31 at the end of the backrest frame; and a rotating assembly connecting the two sides of the box body 1 and the backrest 3. The rotating assembly includes: a fixing member 4 detachably mounted on the side wall of the box body 1, the fixing member 4 having a box body connecting part 41 and a rotating part 42, the rotating part 42 having a second receiving groove 421 on the side facing the box body 1; and a locking disc 5 movably disposed in the second receiving groove 421, the locking disc 5 having a rotating shaft 6 fixedly passing through its center, and the locking disc 5 facing away from the box body 1. The backrest 3 has a protruding locking part 51 on the side; a press-type unlocking disc 7 is fixedly installed in the first receiving groove 31 of the backrest 3 and fixedly connected to the rotating shaft 6; a spring 8 is installed between the press-type unlocking disc 7 and the bottom of the first receiving groove 31; the bottom of the first receiving groove 31 is provided with multiple locking grooves 34; the locking part 51 can be selectively engaged in the locking groove 32 so that the backrest 3 and the seat cushion 2 maintain a fixed angle; pressing the press-type unlocking disc 7 can overcome the elastic force of the spring 8 and drive the locking disc 5 to move, so that the locking part 51 disengages from the locking groove 32, thereby releasing the lock of the backrest 3 to allow it to be flipped.

[0026] Working Principle: This electric vehicle seat achieves backrest flipping via a rotating assembly. Under normal conditions, the locking part of the locking disc is engaged in the locking groove of the first receiving slot of the backrest, maintaining a fixed angle between the backrest and the seat cushion. When it is necessary to flip the backrest, pressing the push-to-unlock disc overcomes the spring force, driving the locking disc to move along the axis of the rotating shaft. The locking part disengages from the locking groove, releasing the backrest lock, allowing it to flip. After flipping to the appropriate angle, releasing the push-to-unlock disc causes the spring force to reset the push-to-unlock disc, moving the locking disc and re-engaging the locking part into the corresponding locking groove, locking the backrest again. This design allows users to easily adjust the backrest angle according to their needs, improving riding comfort. The push-to-unlock disc is simple to operate, allowing users to easily unlock and lock the backrest. Simultaneously, the stable fit between the locking part and the locking groove reliably secures the backrest, ensuring safety and enhancing the practicality and user experience of the electric vehicle seat.

[0027] Preferably, there are two locking parts 51, which are symmetrically arranged with respect to the rotating shaft 6; two sets of locking grooves 32 are correspondingly arranged, with each set including two locking grooves 32. This enhances the stability of the backrest locking. The symmetrical structure makes the force distribution more even, reducing the risk of loosening or damage due to single-point force, ensuring that the backrest is stable and reliable at a fixed angle, effectively preventing the backrest from accidentally flipping over due to external forces such as bumps during riding, ensuring the safety and comfort of the user, and improving the overall quality of the electric vehicle seat.

[0028] Preferably, the spring 8 is a compression spring, with one end abutting against the press-type unlocking disc 7 and the other end abutting against the bottom of the first receiving groove 31. Under normal conditions, it provides elastic force to keep the press-type unlocking disc 7 away from the bottom of the first receiving groove 31 and to engage the locking part 51 with the locking groove 32. This ensures that the backrest can automatically lock when not in operation. During operation, simply press the unlocking disc, and it can quickly reset and lock after being released. It is convenient and efficient to use, and the spring structure is simple, reliable, and has low maintenance costs.

[0029] In a further preferred embodiment, the rotating part 42 of the fixing member 4 is cylindrical, and the first receiving groove 31 is a recess formed on the end face of the rotating part 42. This structure makes the rotation of the rotating assembly smoother, reduces friction and wear, and improves the flexibility and stability of rotation. At the same time, the reasonable structural design also facilitates installation and disassembly, making it convenient for later maintenance and repair of the seat box, and reducing maintenance difficulty and cost.

[0030] In a further preferred embodiment, the second receiving groove 421 is provided with a rotation limiting groove 422 concentric with the rotating shaft 6, and the bottom surface of the locking disc 5 facing the first receiving groove 31 is provided with a rotation positioning pin 423. The rotation positioning pin 423 extends into the rotation limiting groove 422 and can slide along it. This design limits the rotation range of the locking disc, preventing excessive rotation that could cause structural damage, while ensuring the stability of the locking disc during rotation. This allows the locking part to accurately engage and disengage from the locking groove, improving the accuracy and reliability of the backrest flipping and locking. An anti-disengagement bolt 33 is provided on the rotation positioning pin in the first receiving groove.

[0031] In a further preferred embodiment, the outer side of the fixing member 4 is provided with a third receiving groove 43, and a pressure strip 81 is provided in the third receiving groove 43. The pressure strip 81 has a connecting post 82 extending toward the inner side of the housing 1. The fastening bolt 83 passes through the fixing member 4 from the inner side of the housing 1 and is threadedly connected to the connecting post 82. The outer surface of the pressure strip 81 can also be decorated, serving both a connecting function and a decorative effect.

[0032] In summary, this utility model features a simple structure, convenient operation, and the ability to flexibly adjust the backrest angle according to the rider's needs while maintaining stability and reliability during the adjustment process. This type of seat not only improves the rider's comfort but also enhances the practicality and functionality of the seat, meeting the needs of different users and possessing broad market application prospects.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric vehicle seat with a flip-up backrest, characterized in that, include: Box body (1), on which a cushion (2) is provided; Backrest (3), the backrest frame end of the backrest (3) is provided with a first receiving groove (31); A rotating assembly connects the two sides of the housing (1) to the backrest (3), the rotating assembly comprising: A fixing member (4) is detachably installed on the side wall of the box (1). The fixing member (4) has a box connecting part (41) and a rotating part (42). The rotating part (42) has a second receiving groove (421) on the side facing the box (1). The locking disc (5) is movably disposed in the second receiving groove (421). The locking disc (5) has a rotating shaft (6) fixedly inserted through its center, and the locking disc (5) has a protruding locking part (51) facing away from the box body (1). The push-type unlocking disc (7) is fixedly installed in the first receiving groove (31) of the backrest (3) and fixedly connected to the rotating shaft (6); A spring (8) is disposed between the push-to-unlock disc (7) and the bottom of the first receiving groove (31); The bottom of the first receiving groove (31) is provided with a plurality of locking grooves (32); The locking part (51) can be selectively engaged in the locking groove (32) to keep the backrest (3) and the seat cushion (2) at a fixed angle; pressing the push-type unlocking disc (7) overcomes the elastic force of the spring (8) and drives the locking disc (5) to move, so that the locking part (51) disengages from the locking groove (32), thereby releasing the lock of the backrest (3) to allow it to be flipped.

2. The electric vehicle seat with a flip-up backrest according to claim 1, characterized in that: Two locking parts (51) are provided, and the two locking parts (51) are symmetrically arranged with respect to the rotating shaft (6); two sets of locking grooves (32) are provided, and each set of locking grooves (32) includes two locking grooves (32).

3. The electric vehicle seat with a flip-up backrest according to claim 1 or 2, characterized in that: The spring (8) is a compression spring, with one end abutting against the press-type unlocking disc (7) and the other end abutting against the bottom of the first receiving groove (31). Normally, it provides elastic force to make the press-type unlocking disc (7) move away from the bottom of the first receiving groove (31) and the locking part (51) engage with the locking groove (32).

4. The electric vehicle seat with a flip-up backrest according to claim 1, characterized in that: The rotating part (42) of the fixed member (4) is cylindrical, and the first receiving groove (31) is a groove opened on the end face of the rotating part (42).

5. The electric vehicle seat with a flip-up backrest according to claim 1, characterized in that: The second receiving groove (421) is provided with a rotation limiting groove (422) concentric with the rotating shaft (6). The locking disc (5) is provided with a rotation positioning pin (423) facing the bottom surface of the first receiving groove (31). The rotation positioning pin (423) extends into the rotation limiting groove (422) and can slide along it.

6. The electric vehicle seat with a flip-up backrest according to claim 1, characterized in that: The fixing member (4) has a third receiving groove (43) on its outer side, and a pressure strip (81) is provided in the third receiving groove (43). The pressure strip (81) has a connecting post (82) extending toward the inside of the box (1). The fastening bolt (83) passes through the fixing member (4) from the inside of the box (1) and is threaded to the connecting post (82).

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