An assembly structure for a saddle base plate
By matching the hollow and inverted U-shaped saddle base plate with the main frame, the problem of complex assembly structure of electric bicycle saddle base plate is solved, improving assembly efficiency and service life, and enhancing connection stability and saddle protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN XIAODAO NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-03
AI Technical Summary
The existing electric bicycle saddle base plate and frame assembly structure is complex, resulting in low assembly efficiency, and after long-term use, uneven stress can lead to wear and shortened service life.
The saddle base plate, which features a hollow structure, is matched with the main frame of the vehicle in a ring shape. Through the embedding of an inverted U-shaped structure and annular boss, combined with the connection method of fixing screws and decorative fixing posts, a stable connection between the saddle base plate and the main frame of the vehicle is achieved. The saddle cover also covers the outer perimeter of the saddle base plate for protection and shock absorption.
It improves assembly efficiency, extends the service life of the saddle base plate and frame body, reduces wear, enhances the stability and safety of the connection, and makes the saddle cover easy to replace and maintain.
Smart Images

Figure CN224447982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of saddle base plate assembly structure, and in particular to an assembly structure for a saddle base plate. Background Technology
[0002] The saddle, as a crucial component of an electric bicycle, primarily functions to: support the rider's entire weight, enhancing riding comfort; and reduce and absorb vibrations and bumps during operation, ensuring safety, handling stability, comfort, and energy efficiency. The saddle consists of the saddle cover, saddle foam, and saddle base plate. The fixing structure between the saddle base plate and the frame is particularly important. Over time, the saddle base plate's strength diminishes under stress, affecting riding safety. Defects in the assembly structure between the saddle base plate and the frame lead to uneven stress, shortening its lifespan. Damaged base plates result in frequent saddle replacements, impacting the electric bicycle's fuel economy. The lifespan of an electric bicycle saddle is mainly determined by factors such as the saddle base plate's material, fixing structure, and load-bearing area.
[0003] Analysis has confirmed that the current saddle fixing methods in the electric bicycle industry can be divided into the following categories:
[0004] The first type of saddle fixing method:
[0005] like Figure 9 As shown, the structure includes a first saddle surface 1A, a first saddle assembly 2A, a saddle tube 3A, a frame sleeve 4A, and a buckle 5A. The first saddle surface 1A covers the outer perimeter of the first saddle assembly 2A. The first saddle assembly 2A is fixed to one end of the saddle tube 3A by bolts. The other end of the saddle tube 3A is inserted into the frame sleeve 4A and locked in place by the buckle 5A. The frame sleeve 4A is mounted on the frame body. The saddle tube is used as a transition point between the saddle and the frame. This structure is complex to assemble, and failure of any of the fixing bolts could affect driving safety and handling stability.
[0006] The second type of saddle fixing method:
[0007] like Figure 10 As shown, the assembly includes a second saddle surface 1B, a second saddle assembly 2B, screws 3B, and a fixing plate 4B. The second saddle surface 1B covers the outer perimeter of the second saddle assembly 2B. Multiple screws 3B are provided at the lower end of the second saddle assembly 2B, each screw 3B being threaded into a corresponding threaded hole on the fixing plate 4B. The lower end of the fixing plate 4B is connected to the frame body. Integrating the screws 3B and the fixing plate 4B into a single unit improves stability. Compared to the first fixing method, this method simplifies the installation structure, eliminates the saddle tube portion, improves assembly efficiency and consistency, and enhances safety.
[0008] The third type of saddle fixing method:
[0009] like Figure 11 As shown, the assembly includes a third saddle surface 1C, a third saddle assembly 2C, fixing bolts 3C, fixing clips 4C, and a saddle plate 5C. The third saddle surface 1C covers the outer perimeter of the third saddle assembly 2C. The saddle plate 5C is connected to the lower end of the third saddle assembly 2C through the combined action of the fixing bolts 3C and the fixing clips 4C. The lower end of the saddle plate 5C is connected to the frame body. This simplifies the connection structure, and while the fixing bolts 3C are under stress, the fixing clips 4C can also effectively engage the fixing function, further improving the installation structure compared to the two previous schemes. Utility Model Content
[0010] In view of this, the present invention aims to propose an assembly structure for a saddle base plate to solve the problem of low assembly efficiency in existing assembly structures.
[0011] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0012] An assembly structure for a saddle base plate includes a saddle cover, a saddle base plate, and a frame body. The saddle cover is installed on the upper end of the saddle base plate, and the lower end of the saddle base plate is connected to the frame body. The saddle base plate is a hollow structure with the same outer contour as the frame body. The lower end of the saddle base plate is embedded in the periphery of the frame body, and the lower end of the saddle cover at least covers the periphery of the saddle base plate.
[0013] Furthermore, the saddle base plate is a ring-shaped structure with the same outer contour as the main body of the vehicle frame.
[0014] Furthermore, the side wall cross-section of the saddle base plate is an inverted U-shaped structure, and the outer periphery of the frame body is embedded in the inverted U-shaped structure.
[0015] Furthermore, the upper end of the frame body is provided with an annular boss, and the annular boss is embedded in the inverted U-shaped structure of the side wall of the saddle base plate.
[0016] Furthermore, the inner ring of the saddle base plate is provided with multiple decorative component fixing posts along the circumference, the frame body is provided with multiple through holes, and the support is provided with multiple decorative component fixing holes. Each decorative component fixing post passes through a through hole and is inserted into a corresponding decorative component fixing hole.
[0017] Furthermore, the inner ring of the saddle base plate is provided with multiple fixing buckles along the circumference, and each fixing buckle is embedded with a fixing screw. The frame body is provided with multiple threaded holes, and the fixing screw is threaded into the corresponding threaded hole.
[0018] Furthermore, the main body of the vehicle frame is a structure formed by stamping a single piece of iron.
[0019] Furthermore, a reinforcing rib is provided in the middle of the main body of the vehicle frame.
[0020] Compared with the prior art, the assembly structure of the saddle base plate described in this utility model has the following advantages:
[0021] (1) The assembly structure of the saddle base plate described in this utility model is provided with a hollow structure, which can be disassembled and is easy to replace, thus solving the problem of low assembly efficiency of the existing assembly structure.
[0022] (2) The assembly structure of the saddle base plate described in this utility model is provided with a saddle cover covering the outer periphery of the saddle base plate. This not only reduces shock but also protects the inner saddle base plate, reduces wear on the saddle base plate, and enhances its service life. Furthermore, the saddle cover is easy to replace, disassemble, and wash.
[0023] (3) The assembly structure of the saddle base plate of this utility model has reinforcing ribs on the frame body, which can strengthen the frame body, reduce the deformation of the frame body during riding, and extend the service life of the frame body. Attached Figure Description
[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0025] Figure 1 This is a schematic diagram of the overall assembly structure of a saddle base plate according to an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram showing the disassembled structure of an assembly structure for a saddle base plate according to an embodiment of the present utility model;
[0027] Figure 3 This is a schematic diagram of the inverted U-shaped structure described in an embodiment of the present utility model;
[0028] Figure 4 This is a schematic diagram of the annular boss described in an embodiment of the present utility model;
[0029] Figure 5 This is a schematic diagram of the decorative component fixing post according to an embodiment of the present utility model;
[0030] Figure 6 This is a schematic diagram of the perforation described in an embodiment of the present utility model;
[0031] Figure 7 This is a schematic diagram of the decorative component support described in an embodiment of the present utility model;
[0032] Figure 8 This is a schematic diagram of the decorative component fixing screws according to an embodiment of the present utility model;
[0033] Figure 9 This is a schematic diagram of the fixing method of the first type of saddle in existing electric bicycles;
[0034] Figure 10 This is a schematic diagram of the fixing method of the second type of saddle on an existing electric bicycle;
[0035] Figure 11 This is a schematic diagram of the fixing method of the third type of saddle in existing electric bicycles.
[0036] Explanation of reference numerals in the attached figures:
[0037] 1-Saddle cover; 2-Saddle base plate; 21-Inverted U-shaped structure; 22-Fixing screw; 23-Decorative part fixing post; 3-Frame body; 31-Annular boss; 32-Threaded hole; 33-Through hole; 34-Raised reinforcing rib; 4-Support; 41-Decorative part fixing hole; 1A-First saddle surface; 2A-First saddle assembly; 3A-Saddle tube; 4A-Frame sleeve; 5A-Snap fastener; 1B-Second saddle surface; 2B-Second saddle assembly; 3B-Screw; 4B-Fixing plate; 1C-Third saddle surface; 2C-Third saddle assembly; 3C-Fixing bolt; 4C-Fixing snap fastener; 5C-Saddle plate. Detailed Implementation
[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.
[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0042] like Figure 1-8 As shown, an assembly structure for a saddle base plate includes a saddle cover 1, a saddle base plate 2, and a frame body 3. The saddle cover 1 is installed on the upper end of the saddle base plate 2, and the lower end of the saddle base plate 2 is connected to the frame body 3. The saddle base plate 2 is a hollow structure with the same outer contour as the frame body 3. The lower end of the saddle base plate 2 is embedded in the periphery of the frame body 3, and the lower end of the saddle cover 1 covers at least the periphery of the saddle base plate 2. The saddle cover 1, covering the periphery of the saddle base plate 2, not only provides shock absorption but also protects the inner saddle base plate 2, reducing wear and tear and extending its service life. Furthermore, the saddle cover 1 is easy to replace, disassemble, and wash.
[0043] like Figure 3-7 As shown, the saddle base plate 2 is an annular structure with the same outer contour as the frame body 3. The side wall cross-section of the saddle base plate 2 is an inverted U-shaped structure 21. The outer periphery of the frame body 3 is embedded in the inverted U-shaped structure 21. The upper end of the frame body 3 is provided with an annular boss 31, and the outer periphery of the annular boss 31 is embedded in the inverted U-shaped structure 21 of the side wall of the saddle base plate 2. The inner ring of the saddle base plate 2 is provided with multiple decorative part fixing posts 23 along the circumference. The frame body 3 is provided with multiple through holes 33, and the support 4 is provided with multiple decorative part fixing holes 41. Each decorative part fixing post 23 passes through a through hole 33 and is inserted into a corresponding decorative part fixing hole 41.
[0044] The saddle base plate 2 and the frame body 3 are assembled and fixed through the cooperation of the inverted U-shaped structure and the annular boss 31, the threaded connection of the fixing screws 22 in the corresponding fixing screw holes 32, and the insertion of the decorative part fixing post 23 through the through hole 33 and in the decorative part fixing hole 41. The saddle base plate 1 is injection molded from a plastic mold and simultaneously injection molded into decorative fixing posts, including the fixing screws 22 on the saddle base plate 1, which are inserted at the same time during the injection molding process. This can solve part of the weight ratio of plastic parts in the whole vehicle required by the new national standard. After the weight of the saddle base plate is reduced, some of the external decorative parts of the electric bicycle can be retained, which improves the appearance of the electric bicycle and gives it a certain competitiveness in terms of overall appearance.
[0045] like Figure 4-8 As shown, the inner ring of the saddle base plate 2 is provided with multiple fixing buckles along the circumference, and each fixing buckle is embedded with a fixing screw 22. The frame body 3 is provided with multiple threaded holes 31, and the fixing screw 22 is threaded into the corresponding threaded hole 32. The frame body 3 is a one-piece stamped iron structure, and a reinforcing rib 34 is provided in the middle of the frame body 3. At the same time, fixing screw holes 32, through holes 33, and raised reinforcing ribs 34 for local reinforcement are stamped out. The reinforcing ribs 34 on the frame body 3 can strengthen the frame body 3, reduce the deformation of the frame body 3 during riding, and extend the service life of the frame body 3.
[0046] Assembly process of an assembly structure for a saddle base plate:
[0047] The saddle cover 1 covers the outer perimeter of the saddle base plate 2. The inverted U-shaped structure 21 of the saddle base plate 2 is embedded in the annular boss 31 on the outer perimeter of the frame body 3. The fixing screw 22 of the inner ring of the saddle base plate 2 is threaded into the threaded hole 32. The decorative part fixing post 23 passes through the through hole 33 and is inserted into the decorative part fixing hole 41, thereby equipping the overall structure.
[0048] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.
[0049] 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, improvements, etc., 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. A saddle bottom plate assembly structure comprising a saddle cover (1), a saddle bottom plate (2) and a frame body (3), the upper end of the saddle bottom plate (2) is installed with the saddle cover (1), the lower end of the saddle bottom plate (2) is connected with the frame body (3), characterized in that: The saddle base plate (2) is a hollow structure with the same outline as the frame body (3). The lower end of the saddle base plate (2) is embedded in the outer periphery of the frame body (3), and the lower end of the saddle cover (1) covers at least the outer periphery of the saddle base plate (2).
2. A saddle base assembly according to claim 1, wherein: The saddle base plate (2) is a ring structure with the same outline as the frame body (3).
3. A saddle base assembly according to claim 1, wherein: The side wall section of the saddle base plate (2) is an inverted U-shaped structure (21), and the outer periphery of the frame body (3) is embedded in the inverted U-shaped structure (21).
4. A saddle base assembly according to claim 3, wherein: The upper end of the frame body (3) is provided with an annular boss (31), and the annular boss (31) is embedded in the inverted U-shaped structure (21) of the side wall of the saddle base plate (2).
5. A saddle base assembly according to claim 1, wherein: It also includes a support (4), and multiple decorative fixing posts (23) are arranged circumferentially on the inner ring of the saddle base plate (2). Multiple through holes (33) are provided on the frame body (3), and multiple decorative fixing holes (41) are provided on the support (4). Each decorative fixing post (23) passes through a through hole (33) and is inserted into a corresponding decorative fixing hole (41).
6. A saddle base assembly according to claim 1, wherein: The inner ring of the saddle base plate (2) is provided with multiple fixing buckles along the circumference, and each fixing buckle is embedded with a fixing screw (22). The frame body (3) is provided with multiple threaded holes (32), and the fixing screw (22) is threaded into the corresponding threaded hole (32).
7. A saddle base assembly according to claim 1, wherein: The main body of the frame (3) is a structure formed by stamping of an integral iron piece.
8. A saddle base assembly according to claim 1, wherein: A reinforcing rib (34) is provided in the middle of the frame body (3).