Electric bicycle seat cover with adjustable size

Abstract

The utility model relates to the technical field of electric bicycle accessories, in particular to a size-adjustable electric bicycle seat cover. Comprising a cover body made of waterproof fabric, at least one U-shaped supporting strip, a fixed connecting belt and an annular ring structure provided with an elastic belt. The U-shaped supporting strip is arranged along the inner surface of the cover body and can support the cover body to be in an arch shape when unfolded. A second fabric covered edge is sewn at the bottom of the cover body, and the elastic band penetrates through the second fabric covered edge, so that the cover body is matched with and fastened to seats of different sizes. And the cover body is stably mounted on the seat through the fixed connecting belt and the buckle structure, so that the protective property, the adaptability and the mounting convenience of the seat are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle accessories technology, and in particular to an adjustable-size electric bicycle seat cover. Background Technology

[0002] With increasing urban traffic congestion, electric bicycles (hereinafter referred to as "electric bicycles") have become an important means of transportation for daily travel and short-distance commuting due to their environmentally friendly, efficient, and economical characteristics. Especially in small and medium-sized cities, towns, and peri-urban areas of China, the usage rate of electric bicycles continues to rise, covering a wide range of users including students, office workers, and the elderly. Electric bicycles have a simple structure and are easy to ride, mainly consisting of a frame, motor, battery, wheels, control system, and seat. Among these, the seat is one of the parts that users come into direct and frequent contact with, bearing the majority of the rider's weight and directly affecting riding comfort, stability, and safety. However, during long-term use, because the seat is exposed, it is easily affected by various environmental factors such as sunlight exposure, rain erosion, dust pollution, bird droppings, and oil stains, which not only affect riding comfort and shorten its lifespan but also cause hygiene problems. Especially in humid and rainy southern regions with strong ultraviolet radiation in summer, problems such as seat aging, cracking, and stickiness are particularly common. Therefore, developing a convenient, durable, and aesthetically pleasing electric bicycle seat protection device has become a focus of market attention, addressing the need for seat protection.

[0003] To further improve adaptability and user experience, the applicant applied for a Chinese utility model patent (application number: 2025200757814, application date: 20250110) proposing an improved electric vehicle seat cover. This cover maintains its shape by incorporating multiple U-shaped support strips within the cover and connects to the edge of the seat via a fixed connector. Compared to the previous design, this is more convenient to install and structurally more stable, but it still has the following problems: 1) Limited size adaptability: Although this structure simplifies the installation process, the cover is a pre-set size and lacks active adjustment capability, making it difficult to cover various vehicle models with different seat shapes and sizes; 2) High risk of fatigue fracture in the fixed structure: The two ends of the first U-shaped support strip are connected to the fixed connector via hinges. Under repeated vibrations of the seat and changes in riding load, this connection point bears periodic stress, easily leading to fatigue fracture; 3) Poor user adjustability: The cover lacks size adjustment components, and the length of the fixing strap is not adjustable, making it impossible to flexibly adjust the tightness according to user needs, affecting assembly effect and usage stability. Summary of the Invention

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide an adjustable-size electric bicycle seat cover. This seat cover has a reasonable structure, is easy to assemble, has strong stability, and can be adapted to different electric bicycle seat sizes, thereby improving the user's riding experience and extending the seat's service life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable-size electric bicycle seat cover comprises a cover body made of waterproof fabric and at least one U-shaped support strip. The U-shaped support strip is arranged along the inner surface of the cover body, and when the cover body is unfolded, the U-shaped support strip can support the waterproof fabric to form a raised cover body shape. Fixed connecting straps are respectively provided on both sides of the bottom of the cover body. The upper part of the fixed connecting strap is connected to the cover body, and the lower part is connected to a connecting structure for connecting and mounting the cover body to the electric bicycle seat. A pleated annular ring is provided at the bottom of the cover body, and an elastic band is threaded through the edge of the annular ring. When the cover body is unfolded, the bottom is extensible, and its shape can adapt to the electric bicycle seat, allowing the cover body to completely cover the electric bicycle seat.

[0007] Preferably, the fixing connecting strip is formed by pulling down a section of an elastic strip at the fixing connecting strip position, and further, the upper end of this elastic strip is fixed to the cover by sewing. Of course, the fixing connecting strip can also be set separately, with its upper end sewn to the cover for fixation, but this requires additional production steps.

[0008] Preferably, the upper end of the fixing connecting strap is located at the middle, slightly to the left or right of the bottom of the cover; the connecting structure is a buckle with a slot, and the buckle is fixedly installed on the edge of the electric bicycle seat through the slot.

[0009] Preferably, the buckle is made of elastic plastic, with a groove formed inside the elastic plastic. The groove has a retractable locking opening in the middle and an open flared opening on the outside. The lower end of the fixing connecting strip is located in the groove through the locking opening. Alternatively, the buckle has a separate connector, and the lower end of the fixing connecting strip is connected to the connector.

[0010] Preferably, the upper end of the fixing connecting strap is located at the middle, slightly to the left or right of the bottom of the cover; the connecting structure is a nylon buckle or a metal connecting buckle, and the two fixing connecting straps can be connected to each other by nylon buckles or metal connecting buckles after passing around the electric bicycle seat.

[0011] Preferably, the fixing connecting belt is provided with a tension adjustment device.

[0012] Preferably, there are two U-shaped support bars, and when the cover is unfolded, the U-shaped support bars form an angle of 45°-60° with the bottom surface of the cover.

[0013] Preferably, the U-shaped support bar is made of rigid plastic rod, steel wire or aluminum alloy rod.

[0014] Preferably, a first fabric edging is sewn along the inner surface of the cover, the same number of which are the same as the number of U-shaped support strips. The first fabric edging extends from one side of the bottom of the cover to the other side, and the U-shaped support strips are inserted inside the first fabric edging.

[0015] Preferably, the bottom of the cover is sewn with a second annular fabric edging, which forms the annular ring, and an elastic band is threaded inside the second fabric edging.

[0016] Preferably, the outer surface of the cover is provided with a reflective coating.

[0017] This utility model addresses the problems of poor structural adaptability, cumbersome installation, and insufficient structural stability in existing electric bicycle seat covers. It proposes an adjustable-size electric bicycle seat cover that features adjustability, a reasonable structure, easy assembly, and strong adaptability. Through several innovative structural designs, this utility model achieves the following technical effects:

[0018] 1. Wide seat compatibility: By setting a pleated ring at the bottom of the cover and threading elastic bands along its edges, the bottom of the cover has good extensibility and elastic contraction ability. It can automatically adjust the shape of the cover to fit the shape and size of different electric bicycle seats, ensuring that the cover can tightly cover the edge of the seat and is not easy to slip off. This significantly improves the adaptability of this device to irregularly shaped seats and solves the problem of existing covers being non-universal due to fixed sizes.

[0019] 2. Easy assembly and tool-free fixation: This utility model connects to the cover via two fixing straps, and various optional connection structures (such as buckles, nylon buckles, metal connecting buckles, etc.) are provided at the lower end of the straps. Users can quickly fix the cover to the edge of the seat by using the buckle or snap-fit ​​method according to the actual structure of the seat. In some embodiments, the buckle is also provided with screw holes and screws, allowing users to enhance the connection strength and improve the fixation reliability when needed. For scenarios requiring quick installation and removal, elastic or adjustable strap structures can also be selected to ensure that the cover can be installed and removed without tools, and is easy to carry and store.

[0020] 3. Improved connection strength and service life: The upper end of the fixing strap can be set in the middle or side of the bottom of the cover, which facilitates the adjustment of the relative position of the cover and the seat, and also helps to reduce the tearing problem at the connection due to concentrated stress. By setting up a tension adjustment device or using an elastic connecting strap, the cover has a stronger ability to conform to the seat when covering it, reducing stress concentration caused by external forces such as vibration and wind during riding, effectively extending service life and improving safety and reliability.

[0021] 4. Simple structure, moderate cost, and good mass production capability: The overall structural design of this utility model is reasonable, avoiding the problems of large-area rigid components and multi-point hinge structures required in traditional car covers. This allows the cover to maintain its support and fixation while remaining lightweight and simple, making it suitable for large-scale mass production. The components are combined through conventional methods such as sewing, insertion, and bonding, which facilitates standardized processing, helps reduce manufacturing costs, and is suitable for market promotion and application.

[0022] In summary, this utility model integrates an adjustable annular cover edge, a U-shaped support structure, flexible connecting strap components, and waterproof and sun-proof cover fabric to achieve an electric bicycle seat cover that is easy to install, widely adaptable, structurally stable, has excellent protective performance, and is both aesthetically pleasing and practical. It possesses good practical value and industrialization prospects, and effectively overcomes the shortcomings of existing technologies such as complex structure, narrow application range, and poor durability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the buckle structure in Example 1.

[0025] Figure 3 This is a schematic diagram of the structure of Example 2. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0027] Example 1

[0028] like Figure 1The adjustable-size electric bicycle seat cover shown comprises a cover body 1 made of waterproof fabric. Two U-shaped support strips 2 are symmetrically arranged on the inner surface of the cover body 1 along both sides. The support strips are preferably made of steel wire or rigid plastic strips, with both ends threaded into a first fabric edging 8 sewn onto the inner surface of the cover. The edging extends from one side of the bottom of the cover to the other side, forming a through groove. The U-shaped support strips 3 maintain the shape of the cover when it is unfolded, keeping it in a bulging, arched shape, improving aesthetics and drainage performance. Simultaneously, the U-shaped support strips 2 form a 60° angle with the bottom of the cover when it is unfolded, creating a spatial support angle that effectively improves the stability of the cover and prevents collapse.

[0029] like Figure 1 As shown, a ring is sewn around the bottom perimeter of the cover 1. This ring is formed by a second fabric edging. An elastic band 7 is threaded through the edge of the ring. When the cover 1 is unfolded, its bottom is extensible, and its shape can adapt to the electric bicycle seat, allowing the cover 1 to cover the electric bicycle seat. The elastic band 7 allows the cover to contract tightly when not under stress and has good elastic tension when unfolded, enabling it to cover the edges of seats of different sizes while ensuring that the seat cover does not easily fall off during riding. Fixed connecting straps 3 are respectively provided on both sides of the bottom of the cover 1. The upper part of the fixed connecting strap 3 is connected to the cover 1, and the lower part is connected to a connecting structure 5 for connecting the cover 1 to the electric bicycle seat. The upper end of the fixed connecting strap 3 is located in the middle of the bottom of the cover 1. An opening is provided at the fixed connecting strap 3 at the location of the second fabric edging. The fixed connecting strap 3 is formed by pulling down a section of the elastic band 7 from the opening. Of course, the fixed connecting strap 3 can also be provided separately, with its upper end sewn to the cover 1 for fixed connection. The connecting structure 5 is a buckle 9 with a slot 10, and the buckle 9 is fixedly installed on the edge of the electric bicycle seat through the slot 10.

[0030] like Figure 2 As shown, the buckle 9 is made of elastic plastic, and the slot 10 is formed within the elastic plastic. The slot 10 has a constricting locking opening 11 in the middle and an open flared opening 12 on the outer side. When the buckle 9 is fixed to the edge of the electric bicycle seat via the slot 10, the lower end of the fixing strap 3 is locked into the slot 10 via the locking opening 11. Furthermore, a screw hole can be provided on the buckle 9, and a screw can be provided in the screw hole to further fix the buckle 9 to the edge of the electric bicycle seat.

[0031] In addition, to enhance the sun protection effect, the outer surface of the cover 1 is equipped with a reflective coating, which can also provide a warning effect for electric vehicles when driving or parking at night, thereby increasing safety.

[0032] Example 2

[0033] The structure is basically the same as that of Example 1, except that:

[0034] The lower ends of the two fixed connecting straps 3 are connected to nylon buckles 12. During installation, the two fixed connecting straps can be wrapped around the bottom of the seat and interlocked to form a closed connection structure, thereby enhancing the stability of the seat cover on the seat.

[0035] Of course, the fixed connecting belt 3 is also equipped with a tension adjustment device, such as a spring buckle or a sliding adjustment buckle, so that users can adjust the tension according to the seat height and the tightness of the wrap to improve the fit and tightness.

[0036] The foregoing description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A size-adjustable electric bicycle seat cover, comprising a cover body (1) made of waterproof fabric and at least one U-shaped support bar (2), the U-shaped support bar (2) being arranged along the inner surface of the cover body (1) and capable of supporting the shape of the cover body (1) with a bulge made of waterproof fabric in the unfolded state of the cover body (1); characterized in that, The bottom of the cover body (1) is provided with two fixed connection belts (3), the upper part of the fixed connection belt (3) is connected with the cover body (1), and the lower part is provided with a connecting structure (5) for connecting the cover body (1) to the electric bicycle seat; and a ring (6) with wrinkles is arranged at the bottom of the cover body (1), the upper part of the ring (6) is provided with an elastic belt (7), the bottom of the cover body (1) has ductility after being unfolded, and the shape can be adapted to the electric bicycle seat, so that the cover body (1) can be completely covered on the electric bicycle seat; the upper end of the fixed connection belt (3) is located at the middle position, the left or right position of the bottom of the cover body (1), and the fixed connection belt (3) is formed by pulling down a section from the upper end of the fixed connection belt (3) by the elastic belt (7); the connecting structure (5) is a buckle (9) with a clamping groove (10), and the buckle (9) is fixedly arranged on the edge of the electric bicycle seat through the clamping groove (10).

2. An adjustable size electric bicycle seat cover according to claim 1, wherein, The upper end of the elastic belt (7) is fixed on the cover body (1) by sewing; or the fixed connection belt (3) is separately arranged, and the upper end is sewn and fixedly connected with the cover body (1).

3. An adjustable size electric bicycle seat cover according to claim 1, wherein, The buckle (9) is made of elastic plastic, the clamping groove (10) is formed in the elastic plastic, the middle part of the clamping groove (10) is provided with a contracted locking port (11), the outer side is provided with an open horn port (12), and the lower end of the fixed connection belt (3) is arranged in the clamping groove (10) through the locking port (11); or a separate connecting head is arranged on the buckle (9), and the lower end of the fixed connection belt (3) is connected and arranged on the connecting head.

4. A size adjustable electric bicycle seat cover according to any one of claims 1-2, characterized in that, The upper end of the fixed connection belt (3) is located at the middle position, the left or right position of the bottom of the cover body (1); the connecting structure (5) is a nylon plug buckle or a metal connecting buckle, and the two fixed connection belts (3) can be connected with each other through the nylon plug buckle or the metal connecting buckle.

5. An adjustable size electric bicycle seat cover according to claim 4, wherein, A tightness adjusting device is arranged on the fixed connection belt (3).

6. An adjustable size electric bicycle seat cover according to claim 1, wherein, The U-shaped support strip (2) is two, and in the unfolded state of the cover body (1), the U-shaped support strip (2) forms an angle of 45°-60° with the bottom surface of the cover body (1).

7. An adjustable size electric bicycle seat cover according to claim 1, wherein, The U-shaped support strip (2) is made of a hard plastic rod, a steel wire or an aluminum alloy rod.

8. An adjustable size electric bicycle seat cover according to claim 1, wherein, A first fabric edge (8) is sewn along the inner surface of the cover body (1), the number of the first fabric edges (8) is the same as that of the U-shaped support strips (2), the first fabric edge (8) extends from one side to the other side of the bottom of the cover body (1), and the U-shaped support strip (2) is arranged in the first fabric edge (8); a second fabric edge is sewn on the bottom of the cover body (1), the second fabric edge forms the ring (6), and the elastic belt (7) is arranged in the second fabric edge.

9. An adjustable size electric bicycle seat cover according to claim 1, wherein, The outer surface of the cover body (1) is provided with a reflective coating.

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