Multifunctional electric bicycle tailstock

Abstract

The utility model discloses a multifunctional electric bicycle tailstock, and relates to the technical field of bicycles. Comprising a flat plate frame which is assembled at the position of a rear wheel frame structure of the electric bicycle through supporting frame bodies rigidly connected to the two sides, an open notch is preset in the center area in the flat plate frame, and the flat plate frame and the surface of a rear wheel jointly form a normal contact plane through the open notch. A contact relation in the normal direction is generated through the open gap and the rear wheel. Through the innovative combination of the modular functional suite and the folding covering device, the function integration of article storage and information display is realized, the triangular stable structure is matched with the I-shaped reinforcing rib design, the lightweight improvement is realized on the premise of ensuring the overall structural strength, and the structure is simple and convenient. The double-layer composite structure of the display layer and the magnetic storage bin not only meets the business information visualization requirement, but also has the all-weather article storage capacity.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically a multifunctional electric bicycle tail rack. Background Technology

[0002] An electric bicycle tail rack is a device installed above the rear wheel of an electric bicycle to carry items.

[0003] A search revealed that Chinese utility model patent application with publication number "CN211107801U" proposes "an electric bicycle tail rack and an electric bicycle". The detachable design of the tail rack allows the electric bicycle to use batteries of different shapes, models and capacities to meet different range requirements. At the same time, the seat and backrest mounting holes on the tail rack also make the electric bicycle more functional and meet the needs of different users.

[0004] However, in actual use, the aforementioned devices and similar existing devices, when dealing with diverse usage scenarios, are unable to realize additional functions such as information display and tool storage due to the single platform function and lack of expandable modular components. Utility Model Content

[0005] The purpose of this utility model is to provide a multifunctional electric bicycle tail rack to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional electric bicycle tail rack, comprising:

[0007] The flatbed frame is assembled to the rear wheel frame structure of the electric bicycle through a support frame rigidly connected on both sides. An open notch is preset in the central area inside the flatbed frame. The flatbed frame and the surface of the rear wheel together form a normal contact plane through the open notch. The normal contact plane is used to indicate that when an object is placed on the top surface of the flatbed frame, a normal contact relationship is formed between the object and the rear wheel through the open notch.

[0008] The top surface of the flat rack is equipped with a folding cover device. When unfolded, the folding cover device completely covers the open gap. The surface of the folding cover device integrates functional kits. The functional kits convey visual information through information labels and stamps set inside the kits, or complete the standardized storage of items by utilizing the internal storage structure of the functional kits.

[0009] Furthermore, the support frame includes a positioning bracket and an assembly bracket, which are respectively installed at both ends of the outer side of the flat plate frame. The end of the positioning bracket is assembled with the seat bracket of the electric bicycle by a positioning bolt, and the end of the assembly bracket is assembled with the axle of the rear wheel of the electric bicycle by a positioning nut, forming a triangular stable structure.

[0010] Furthermore, the folding cover device includes: two sets of springs, which are axially symmetrically installed on both sides of the top end of the flat plate frame, and an arc frame is provided between the two sets of springs. The functional kit is fixed to the inner arc cavity area of ​​the arc frame by mechanical fastening.

[0011] Furthermore, the arc frame is in the form of a "U" shape, the inner arc surface of the arc frame is connected to the outer surface of the functional kit in a transitional fit, and the two ends of the "U" shape are rigidly connected to the drive end of the rebounder to form a foldable covering device.

[0012] Furthermore, the functional kit includes a double-layer composite structure, with an outer layer being a transparent plastic display layer and an inner layer being a storage compartment with magnetic snap fasteners. The surface of the display layer is provided with replaceable slots for fixing information label display stamps, and the bottom of the storage compartment is equipped with a waterproof sealing strip.

[0013] Furthermore, the triangular stabilizing structure is equipped with reinforcing ribs. The two ends of the reinforcing ribs form a three-point mechanical support with the middle section of the bottom surface of the flat plate frame and the assembly bracket, respectively. The interior of the reinforcing ribs is provided with an array of weight-reducing holes arranged at equal intervals, and the cross-section of the reinforcing ribs is an I-shaped bending-resistant structure.

[0014] Furthermore, buffer blocks are fixed at both ends of the bottom surface of the flat rack. The surface of the buffer blocks has anti-slip texture to reduce the impact of vibration caused by bumps during vehicle travel on the items placed on the flat rack.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This multi-functional electric bicycle tail rack integrates storage and information display functions through an innovative combination of modular functional kits and a folding cover. The triangular stabilizing structure, combined with the I-beam reinforcing rib design, achieves lightweight improvement while ensuring overall structural strength. The double-layer composite structure of the display layer and magnetic storage compartment not only meets the needs of commercial information visualization but also has all-weather storage capabilities. The combination of buffer blocks and anti-slip textures significantly reduces the risk of item displacement during transportation, and the spring-loaded folding mechanism ensures convenient and reliable function switching. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of the present invention;

[0018] Figure 2 This is an internal assembly drawing of the present invention;

[0019] Figure 3 This is a diagram showing the bottom structure of this utility model.

[0020] In the diagram: 1. Flat plate frame; 2. Positioning bracket; 3. Arc frame; 4. Assembly bracket; 5. Functional kit; 6. Springback mechanism; 7. Open notch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Before understanding the technical solution proposed in this application, it is important to understand that an electric bicycle tail rack is a device installed above the rear wheel of an electric bicycle to carry goods. Existing tail racks have relatively simple functions and can usually only meet simple cargo carrying needs. However, the multi-functional electric bicycle tail rack of this utility model has been optimized in terms of structural design.

[0023] Specifically, such as Figures 1-3 As shown, this utility model provides a technical solution: a multifunctional electric bicycle tail rack, comprising:

[0024] The flat rack 1 is rigidly connected to the rear wheel frame of the electric bicycle via a support frame on both sides. The central area inside the flat rack 1 has a pre-set open notch 7. The flat rack 1 and the surface of the rear wheel together form a normal contact plane through the open notch 7. The normal contact plane is used to indicate that when an object is placed on the top surface of the flat rack 1, it makes a normal contact relationship with the rear wheel through the open notch. This design ensures the stability of the object on the flat rack 1, while allowing the normal operation of the rear wheel.

[0025] In addition, it should be added that the top surface of the flat rack 1 is equipped with a folding cover device. When the folding cover device is unfolded, it completely covers the open gap 7. The surface of the folding cover device integrates a functional kit 5. The functional kit 5 conveys visual information through information labels set inside the kit or completes the standardized storage of items using the internal storage structure of the functional kit 5. This design not only improves the practicality of the flat rack 1, but also enhances its aesthetics.

[0026] It should be noted that the support frame in this application includes a positioning bracket 2 and an assembly bracket 4, which are respectively installed at both ends of the outer side of the flat plate frame 1. The end of the positioning bracket 2 is assembled with the seat bracket of the electric bicycle through a positioning bolt, and the end of the assembly bracket 4 is assembled with the axle of the rear wheel of the electric bicycle through a positioning nut, forming a triangular stable structure. This design makes the connection between the flat plate frame 1 and the electric bicycle more secure and improves the overall stability.

[0027] It should also be noted that the folding cover device in this application includes: two sets of springs 6, which are axially symmetrically installed on both sides of the top end of the flat plate frame 1, and an arc frame 3 is provided between the two sets of springs 6. The functional kit 5 is fixed to the inner arc cavity area of ​​the arc frame 3 by mechanical connection. This design makes the folding cover device more flexible in use, while also ensuring its stability.

[0028] In a preferred embodiment, the arc frame 3 is integrally U-shaped. The inner arc surface of the arc frame 3 forms a transitional fit with the outer surface of the functional kit 5. The two extended portions of the U-shaped structure are rigidly connected to the drive end of the spring-loaded device 6, forming a folding cover device. This design makes the connection between the arc frame 3 and the functional kit 5 more secure, while also ensuring its flexibility. In addition, in this embodiment, the functional kit 5 includes a double-layer composite structure. The outer layer is a transparent plastic display layer, and the inner layer is a storage compartment with magnetic closure. The surface of the display layer is equipped with a replaceable... The slot is used to fix the information label display stamp. The bottom of the storage compartment is equipped with a waterproof sealing strip. This design makes the functional kit 5 not only have display function but also storage function, while ensuring its waterproof performance. It should be further explained that a reinforcing rib is added to the triangular stable structure. The two ends of the reinforcing rib form a three-point mechanical support with the middle section of the bottom surface of the flat plate 1 and the mounting bracket 4, respectively. The interior of the reinforcing rib has an array of weight-reducing holes arranged at equal intervals. The cross section of the reinforcing rib has an I-shaped anti-bending structure. This design further improves the stability of the flat plate 1 and also reduces its weight.

[0029] Finally, it should be noted that buffer blocks are fixed at both ends of the bottom surface of the flatbed 1 in this application. The surface of the buffer blocks has anti-slip texture to reduce the impact of vibration caused by bumps during vehicle travel on the items placed on the flatbed 1. This design not only improves the stability of the flatbed 1, but also enhances its safety.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional electric bicycle rack, characterized in that, The utility model relates to a kind of folding plate rack for electric bicycle, including: The flat plate frame (1) is assembled to the rear wheel frame structure of electric bicycle by the support frame body of rigid connection on both sides, the inside center area of flat plate frame (1) is preset open gap (7), flat plate frame (1) is formed normal contact plane with rear wheel surface through open gap (7), normal contact plane is used to indicate that when object is placed on the top surface of flat plate frame (1), contact relationship in normal direction is generated with rear wheel through open gap; The top surface of the flat plate frame (1) is provided with a folding covering device, which completely covers the open gap (7) in the unfolded state. The surface of the folding covering device is provided with a functional kit (5). The functional kit (5) can convey visual information through the information display sticker inside the kit or store items in a standardized manner using the storage structure inside the kit.

2. The multifunctional electric bicycle rack according to claim 1, characterized in that: The support frame body includes a positioning bracket (2) and an assembly bracket (4), which are respectively installed at both ends of the outside of the flat plate frame (1). The end of the positioning bracket (2) is assembled with the seat bracket of the electric bicycle through a positioning bolt, and the end of the assembly bracket (4) is assembled with the axle part of the rear wheel of the electric bicycle through a positioning nut, forming a triangular stable structure.

3. The multi-functional electric bicycle rack of claim 1, wherein: The folding covering device includes two groups of elastic returners (6) installed axially symmetrically at both sides of the end of the top surface of the flat plate frame (1). A circular arc frame (3) is arranged between the two groups of elastic returners (6). The functional kit (5) is fixed in the inner arc cavity area of the circular arc frame (3) by mechanical fixation.

4. The multi-functional electric bicycle rack of claim 3, wherein: The circular arc frame (3) has a "U" shape structure. The inner arc surface of the circular arc frame (3) forms a transition fit connection with the outer surface of the functional kit (5). The two end extension parts of the "U" shape structure are rigidly connected with the driving ends of the elastic returners (6), forming the folding covering device.

5. The multi-functional electric bicycle rack of claim 1, wherein: The functional kit (5) includes a double-layer composite structure. The outer layer is a transparent plastic display layer, and the inner layer is a storage compartment with magnetic buckle. The display layer surface is provided with a replaceable slot for fixing the information display sticker. The bottom of the storage compartment is provided with a waterproof sealing strip.

6. The multi-functional electric bicycle rack of claim 2, wherein: The triangular stable structure is additionally provided with a reinforcing rib. The two ends of the reinforcing rib form a three-point mechanical support with the middle section of the bottom surface of the flat plate frame (1) and the assembly bracket (4). The inside of the reinforcing rib is provided with an array of weight-reducing holes arranged at equal distances. The cross section of the reinforcing rib has an I-shaped anti-bending structure.

7. The multi-functional electric bicycle rack of claim 1, wherein: The bottom surface of the flat plate frame (1) is fixed with a buffer block at both ends. The surface of the buffer block is provided with anti-skid lines to reduce the impact of vibration on the items placed on the flat plate frame (1) during vehicle driving.

Images