A tricycle rear seat and tricycle
By combining a metal frame with a plastic shell, the design solves the problems of high cost and poor aesthetics of the tricycle's rear seat, achieving weight reduction and lower paint costs, while improving user experience and storage space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING EMMA AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-31
AI Technical Summary
Existing tricycles have high costs and poor aesthetics for the back seat, the painting process has health risks, and storage space is limited.
The design combines a metal tube frame with a plastic cover, which encloses the metal tube frame, which includes a main tube frame, a left tube frame, a right tube frame, and a support tube frame. The cover is made of plastic to reduce costs and improve the appearance. Hinges are used for rotating connections with the vehicle body.
Without compromising strength, the weight is reduced by 70%, the paint cost is reduced by at least 80%, the user experience and overall vehicle quality are improved, and more storage space is provided.
Smart Images

Figure CN224576729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tricycle technology, and in particular to a tricycle rear seat and a tricycle. Background Technology
[0002] Existing double-cab tricycles are divided into straight-cab and tipping-cab models. The straight-cab model connects the rear seat directly to the cargo box via metal hinges, allowing rear passengers to sit on it. However, the straight-cab storage space is small, making it difficult to place large items. The tipping-cab model, on the other hand, can be tilted 90 degrees to create an open storage space with the rear cargo bed, making it convenient for users to place large items. The tipping-cab connects the rear seat to the frame via a tilting plate, forming a rotating device capable of supporting the weight of passengers. Current tilting plates are formed by welding sheet metal parts, typically consisting of a left plate, a right plate, and a middle support plate. To match the overall vehicle color, painting is required, resulting in higher costs, poor aesthetics, and pollution in the painting workshop, which can negatively impact the health of workers.
[0003] In view of this, the present invention provides a three-wheeled vehicle rear seat that has a lower cost and improves the overall marketability of the vehicle, as well as a three-wheeled vehicle including the aforementioned three-wheeled vehicle rear seat. Utility Model Content
[0004] The main objective of this invention is to provide a tricycle rear seat that is low in cost and can improve the overall marketability of the vehicle; this invention also provides a tricycle including the aforementioned tricycle rear seat.
[0005] To achieve the above objectives, one embodiment of the present invention provides a rear seat for a tricycle, comprising: a metal tube frame and a cover;
[0006] The cover is made of plastic; the cover covers the metal tube frame;
[0007] The metal pipe rack includes a main pipe rack, a left pipe rack, a right pipe rack, and a support pipe rack;
[0008] The upper end of the main tube frame is connected to the front end of the support tube frame. One end of the left tube frame is connected to the left end of the support tube frame, and the other end is connected to the left end of the main tube frame. One end of the right tube frame is connected to the right end of the support tube frame, and the other end is connected to the right end of the main tube frame. A hinge for rotating connection with the tricycle can be installed on the main tube frame.
[0009] Optionally, the main tube frame includes a main tube and two vertical tubes located at the left and right ends of the main tube and perpendicular to the main tube;
[0010] The upper ends of the two vertical pipes are respectively connected to the left front end and the right front end of the support pipe frame; the left pipe frame and the right pipe frame are respectively connected to the left end and the right end of the main pipe, and the hinge is provided on the main pipe.
[0011] Optionally, the main pipe is provided with a mounting hole for mounting the hinge, and / or the main pipe is provided with a mounting groove for mounting the hinge.
[0012] Optionally, the cover is provided with a clearance hole for avoiding the hinge, and / or, the cover is provided with a clearance groove for avoiding the hinge.
[0013] Optionally, the support tube frame includes a first intermediate support tube and a left support tube and a right support tube respectively located at the left and right ends of the first intermediate support tube and perpendicular to the first intermediate support tube;
[0014] The upper ends of the two vertical tubes are respectively connected to the end of the left support tube away from the first intermediate support tube and the end of the right support tube away from the first intermediate support tube; the left tube frame and the right tube frame are respectively connected to the end of the left support tube near the first intermediate support tube and the end of the right support tube near the first intermediate support tube.
[0015] Optionally, the support tube frame further includes a second intermediate support tube arranged parallel to the first intermediate support tube;
[0016] The two ends of the second intermediate support tube are respectively connected to the end of the left support tube opposite to the first intermediate support tube and the end of the right support tube opposite to the first intermediate support tube.
[0017] Optionally, both the left and right tube supports are L-shaped tubes;
[0018] and / or;
[0019] The first intermediate support tube, the left support tube, the right support tube, and the two vertical tubes are integrally formed.
[0020] Optionally, the cover includes a support plate, a left guard plate, a right guard plate, and a front guard plate;
[0021] The left guard plate, the right guard plate, and the front guard plate are all connected to the support plate, and the left guard plate and the right guard plate are located at the left and right ends of the front guard plate, respectively.
[0022] The left guard plate, the right guard plate, and the front guard plate are all hollow inside, and the support plate is provided with a receiving groove; the left guard plate, the right guard plate, and the front guard plate are all hollow inside, and the support plate is provided with a receiving groove; the left guard plate, the right guard plate, and the front guard plate are all provided with openings to allow the receiving groove, the interior of the left guard plate, the interior of the right guard plate, and the interior of the front guard plate to communicate;
[0023] The left tube rack is located inside the left protective plate, the right tube rack is located inside the right protective plate, the main tube rack is located inside the front protective plate, and the support tube rack is located inside the receiving groove.
[0024] Optionally, a limiting plate is provided on the left tube frame and / or the right tube frame; both the left guard plate and the right guard plate are provided with a notch for avoiding the limiting plate.
[0025] Another embodiment of this utility model also provides a tricycle, including the aforementioned tricycle rear seat.
[0026] The beneficial effects of this utility model are:
[0027] This utility model provides a rear seat for a tricycle, comprising: a metal tube frame and a cover; the cover is made of plastic; the cover covers the metal tube frame; the metal tube frame includes a main tube frame, a left tube frame, a right tube frame, and a support tube frame; the upper end of the main tube frame is connected to the front end of the support tube frame, one end of the left tube frame is connected to the left end of the support tube frame, and the other end is connected to the left end of the main tube frame, one end of the right tube frame is connected to the right end of the support tube frame, and the other end is connected to the right end of the main tube frame; a hinge for rotating connection with the tricycle can be installed on the main tube frame.
[0028] The tricycle's rear seat uses a combination of a metal tubular frame and a plastic shell. Without compromising strength, this design reduces weight by 70% compared to the original rear seat, giving the tricycle a longer range. Furthermore, the plastic shell offers high plasticity, allowing for more complex designs and enhancing the user experience and overall vehicle quality. With minimal or no exposed metal tubular frame, its surface treatment can be done simply with electrophoresis, significantly reducing the treatment area. Compared to the original electrophoresis and spraying method used for metal rear seats, experiments have shown that the overall painting cost can be reduced by at least 80%. Attached Figure Description
[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of the metal tube frame provided in an embodiment of the present utility model;
[0031] Figure 2 A schematic diagram of the structure of the rear seat of a tricycle provided in an embodiment of this utility model;
[0032] Figure 3 This is a schematic diagram of the structure of the cover provided in an embodiment of the present utility model.
[0033] Icon: 100 - Metal Pipe Rack;
[0034] 110-Main pipe frame; 111-Main pipe; 1111-Mounting hole; 112-Vertical pipe; 120-Left pipe frame; 130-Right pipe frame; 140-Support pipe frame; 141-First intermediate support pipe; 142-Left support pipe; 143-Right support pipe; 144-Second intermediate support pipe; 150-Limiting plate;
[0035] 200-Casing;
[0036] 210-Support plate; 211-Accommodation groove; 220-Front guard plate; 221-Front side plate; 222-Rear side plate; 230-Left guard plate; 231-First left side plate; 232-First right side plate; 240-Right guard plate; 241-Second left side plate; 242-Second right side plate; 250-Notch. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.
[0043] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0044] This utility model embodiment provides a rear seat for a tricycle, applied to a double-row tricycle, used as the rear seat of the double-row tricycle; wherein, the double-row tricycle can be an electric tricycle or a human-powered tricycle. Figures 1 to 3As shown, the tricycle rear seat includes a metal tube frame 100 and a cover 200. The cover 200 is made of plastic, such as polypropylene (PP), high-density polyethylene (HDPE), or acrylonitrile butadiene styrene (ABS). The cover 200 covers the outside of the metal tube frame 100 and is used for user seating and to enclose the seat bucket. The metal tube frame 100 is used to improve the strength of the cover 200. The metal tube frame 100 includes a main tube frame 110, a left tube frame 120, a right tube frame 130, and a support tube frame 140. The upper end of the main tube frame 110 is connected to the front end of the support tube frame 140, and preferably, the main tube frame 110 and the support tube frame 140 are arranged perpendicularly. One end of the left tube frame 120 is connected to the left end of the support tube frame 140, specifically the left rear end, and the other end is connected to the left end of the main tube frame 110. The left and right tube frames are connected at their ends, specifically at the lower left end. Preferably, the left tube frame 120 is perpendicular to the support tube frame 140 and the main tube frame 110. One end of the right tube frame 130 is connected to the right end of the support tube frame 140, specifically at the right rear end, and the other end is connected to the right end of the main tube frame 110, specifically at the lower right end. The left and right tube frames 120 and 130 are arranged opposite to each other, and preferably, the right tube frame 130 is perpendicular to the support tube frame 140 and the main tube frame 110. Furthermore, the main tube frame 110 can be fitted with a hinge for rotating connection with the tricycle body, so that the metal tube frame 100 and the cover 200 can be flipped on the vehicle body to open the tricycle's seat bucket, and after opening, can form a larger storage space with the seat bucket, or to close the tricycle's seat bucket, and after closing the seat bucket, can be used by the user to ride.
[0045] The tricycle rear seat provided in this embodiment uses a metal tube frame 100 and a plastic shell 200 together. Without affecting the strength, it can reduce the weight by 70% compared to the original rear seat, giving the tricycle a longer range. Furthermore, the shell 200 is made of plastic, which is highly malleable and can be designed with more complex shapes, improving the user's appearance and the overall quality of the vehicle. The exposed part of the metal tube frame 100 is small or even non-exposed, so its surface treatment can be done by electrophoresis only, and the treatment area is greatly reduced. Compared with the original electrophoresis and spraying treatment method of metal rear seats, the overall painting cost can be reduced by at least 80% after testing.
[0046] Optionally, the rear seat of the tricycle provided in this embodiment includes a main frame 110 comprising a main frame 111 and two vertical tubes 112. The two vertical tubes 112 are vertically arranged and located at the left and right ends of the main frame 111, respectively, and are perpendicular to the main frame 111, that is, the main frame 110 is generally U-shaped. The upper end of one vertical tube 112, that is, the end of the vertical tube 112 away from the main frame 111, is connected to the left front end of the support tube frame 140, and the upper end of the other vertical tube 112, that is, the end of the vertical tube 112 away from the main frame 111, is connected to the right front end of the support tube frame 140. The left tube frame 120 is connected to the left end of the main frame 111, and the right tube frame 130 is connected to the right end of the main frame 111. The aforementioned hinge for rotating connection with the body of the tricycle is provided on the main frame 111.
[0047] Optionally, in this embodiment, the main pipe 111 may be provided with mounting holes 1111, and the hinge may be installed on the main pipe 111 by screws engaging with the mounting holes 1111; the main pipe 111 may also be provided with mounting grooves, and the hinge may be installed on the main pipe 111 by welding or snap-fitting; the main pipe 111 may also be provided with mounting grooves, and mounting holes 1111 are opened in the bottom wall of the mounting grooves, so that the hinge may be installed in the mounting grooves on the main pipe 111 by screws engaging with the mounting holes 1111.
[0048] Optionally, the tricycle rear seat support frame 140 provided in this embodiment includes a first intermediate support tube 141, a left support tube 142, and a right support tube 143; the left support tube 142 and the right support tube 143 are arranged opposite to each other and are located at the left and right ends of the first intermediate support tube 141, and preferably, the left support tube 142 is perpendicular to the first intermediate support tube 141, and the right support tube 143 is perpendicular to the first intermediate support tube 141, that is, the support frame 140 is generally U-shaped; in order for the support frame 140 to better match the support plate 210, the left support tube 142 and the first intermediate support tube 141 are connected by a circular... The right support pipe 143 and the first intermediate support pipe 141 are also connected by an arc transition; the upper end of one vertical pipe 112 is connected to the end of the left support pipe 142 away from the first intermediate support pipe 141, and the upper end of the other vertical pipe 112 is connected to the end of the right support pipe 143 away from the first intermediate support pipe 141; the end of the left pipe frame 120 away from the main pipe 111 is connected to the end of the left support pipe 142 near the first intermediate support pipe 141, and the end of the right pipe frame 130 away from the main pipe 111 is connected to the end of the right support pipe 143 near the first intermediate support pipe 141, thus forming a metal pipe frame 100 with a frame structure.
[0049] Furthermore, in this embodiment, in order to improve the strength of the support tube frame 140, the support tube frame 140 also includes a second intermediate support tube 144. The second intermediate support tube 144 is arranged parallel to the first intermediate support tube 141, and one end of the second intermediate support tube 144 is connected to the end of the left support tube 142 away from the first intermediate support tube 141, and the other end is connected to the end of the right support tube 143 away from the second intermediate support tube 144.
[0050] Preferably, in this embodiment, both the left tube support 120 and the right tube support 130 are L-shaped tubes.
[0051] Preferably, in this embodiment, the first intermediate support pipe 141, the left support pipe 142, the right support pipe 143, and the two vertical pipes 112 are integrally formed. The remaining pipes can be connected by welding.
[0052] Optionally, the tricycle rear seat cover 200 provided in this embodiment includes a support plate 210, a left guard plate 230, a right guard plate 240, and a front guard plate 220; the left guard plate 230 and the right guard plate 240 are respectively connected to the left and right ends of the front guard plate 220, and the upper ends of the left guard plate 230, the right guard plate 240, and the front guard plate 220 are all connected to the lower surface of the support plate 210, and a seat cushion can be provided on the upper surface of the support plate 210 for users to sit on. The left guard plate 230, right guard plate 240, and front guard plate 220 are all hollow inside. The left pipe rack 120 is disposed inside the left guard plate 230, the right pipe rack 130 is disposed inside the right guard plate 240, and the main pipe rack 110 is disposed inside the front guard plate 220. The lower surface of the support plate 210 is provided with a receiving groove 211, and the support pipe rack 140 is disposed inside the receiving groove 211. The left guard plate 230, right guard plate 240, and front guard plate 220 are all provided with openings to allow the receiving groove 211, the interior of the left guard plate 230, and the right guard plate 240 to be hollow inside. The interior of the left guard plate 230 is connected to the interior of the front guard plate 220; specifically, the upper end of the left guard plate 230 is disposed in the receiving groove 211, and the rear side of the left guard plate 230 is provided with an opening communicating with the receiving groove 211, so that the left support tube 142 of the support tube frame 140 extends into the part of the left guard plate 230 located in the receiving groove 211, and the left guard plate 230 is fixed to the support plate 210 by the left support tube 142 of the support tube frame 140, and the left tube frame 120 and the left support tube 142 of the support tube frame 140 can be connected. The upper end of the right guard plate 240 is disposed within the receiving groove 211, and the rear side of the right guard plate 240 has an opening communicating with the receiving groove 211, so that the right support tube 143 of the support tube frame 140 extends into the portion of the right guard plate 240 located in the receiving groove 211, and the right guard plate 240 is fixed to the support plate 210 through the right support tube 143 of the support tube frame 140, and the right tube frame 130 can be connected to the right support tube 143 of the support tube frame 140; the upper end of the front guard plate 220 is disposed within the receiving groove 211. Inside 11, the rear surface of the front guard plate 220 has two openings that communicate with the left guard plate 230 and the right guard plate 240, so that the second intermediate support tube 144 of the support tube frame 140 can extend into the part of the front guard plate 220 located in the receiving groove 211, and fix the front guard plate 220 to the support plate 210 through the second intermediate support tube 144 of the support tube frame 140, and enable the main tube frame 110 to be connected to the second intermediate support tube 144 of the support tube frame 140, the left tube frame 120 and the right tube frame 130.Furthermore, the front guard plate 220, left guard plate 230, and right guard plate 240 can cover part of the receiving groove 211, thereby minimizing the exposure of the metal tube frame 100. That is, only the first intermediate support tube 141 of the support tube frame 140, as well as the transition arc between the first intermediate support tube 141 and the left support tube 142 and the transition arc between the first intermediate support tube 141 and the right support tube 143 are exposed. In an optional embodiment, the exposed part of the support tube frame 140 can be closed by providing a cover plate that is detachably connected to the first intermediate support tube 141, such as a cover plate that can be connected to the first intermediate support tube 141 by screws.
[0053] In this embodiment, the front guard plate 220 has a front side plate 221 and a rear side plate 222 arranged opposite to each other, and the two openings mentioned above are located at the left and right ends of the rear side plate 222, respectively. The left guard plate 230 has a first left side plate 231 and a first right side plate 232 arranged opposite to each other, and the right guard plate 240 has a second left side plate 241 and a second right side plate 242 arranged opposite to each other. The first right side plate 232 and the second left side plate 241 are arranged opposite to each other. During production, the first right side plate 232, the second left side plate 241 and the rear side plate 222 can be integrally formed, and the first left side plate 231, the second right side plate 242 and the front side plate 221 can be separately arranged. They can be detachably connected to the front side plate 221 by providing flanges on the first left side plate 231 and the second right side plate 242. In other embodiments, the first left side plate 231, the second right side plate 242 and the front side plate 221 can also be integrally formed.
[0054] Optionally, in this embodiment, the rear side plate 222 is provided with a clearance hole for avoiding the hinge member, and / or, the rear side plate 222 is provided with a clearance groove for avoiding the hinge member. When the rear side plate 222 is provided with a clearance hole, the clearance hole is coaxial with and communicates with the mounting hole 1111.
[0055] In this embodiment, in order to limit the rotation angle of the rear seat of the tricycle, a limiting plate 150 is provided on at least one of the left tube frame 120 and the right tube frame 130. Preferably, the left guard plate 230 and the right guard plate 240 are both provided with notches 250 for avoiding the limiting plate 150, so that the limiting plate 150 can extend out of the left guard plate 230 and / or the right guard plate 240, thereby facilitating the assembly of the limiting plate 150.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A trike rear seat, characterized in that, include: Metal tube rack (100) and housing (200); The cover (200) is made of plastic; the cover (200) covers the metal tube frame (100); The metal tube rack (100) includes a main tube rack (110), a left tube rack (120), a right tube rack (130), and a support tube rack (140). The upper end of the main tube frame (110) is connected to the front end of the support tube frame (140). One end of the left tube frame (120) is connected to the left end of the support tube frame (140), and the other end is connected to the left end of the main tube frame (110). One end of the right tube frame (130) is connected to the right end of the support tube frame (140), and the other end is connected to the right end of the main tube frame (110). A hinge for rotating connection with a tricycle can be installed on the main tube frame (110).
2. The trike saddle of claim 1, wherein, The main frame (110) includes a main tube (111) and two vertical tubes (112) located at the left and right ends of the main tube (111) and perpendicular to the main tube (111). The upper ends of the two vertical pipes (112) are respectively connected to the left front end and the right front end of the support pipe frame (140); the left pipe frame (120) and the right pipe frame (130) are respectively connected to the left end and the right end of the main pipe (111), and the hinge is provided on the main pipe (111).
3. The trike saddle of claim 2, wherein, The main tube (111) is provided with a mounting hole (1111) for mounting the hinge, and / or the main tube (111) is provided with a mounting groove for mounting the hinge.
4. The trike saddle of claim 3, wherein, The cover (200) is provided with a clearance hole for avoiding the hinge, and / or the cover (200) is provided with a clearance groove for avoiding the hinge.
5. The trike saddle of claim 2, wherein, The support tube frame (140) includes a first intermediate support tube (141) and a left support tube (142) and a right support tube (143) located at the left and right ends of the first intermediate support tube (141) and perpendicular to the first intermediate support tube (141). The upper ends of the two vertical pipes (112) are respectively connected to the end of the left support pipe (142) away from the first intermediate support pipe (141) and the end of the right support pipe (143) away from the first intermediate support pipe (141); the left pipe frame (120) and the right pipe frame (130) are respectively connected to the end of the left support pipe (142) near the first intermediate support pipe (141) and the end of the right support pipe (143) near the first intermediate support pipe (141).
6. The trike saddle of claim 5, wherein, The support tube frame (140) also includes a second intermediate support tube (144) arranged parallel to the first intermediate support tube (141). The two ends of the second intermediate support tube (144) are respectively connected to the end of the left support tube (142) away from the first intermediate support tube (141) and the end of the right support tube (143) away from the first intermediate support tube (141).
7. The trike saddle of claim 5, wherein, Both the left tube rack (120) and the right tube rack (130) are L-shaped tubes; and / or; The first intermediate support tube (141), the left support tube (142), the right support tube (143), and the two vertical tubes (112) are integrally formed.
8. The trike saddle of claim 4, wherein, The cover (200) includes a support plate (210), a left guard plate (230), a right guard plate (240) and a front guard plate (220). The left guard plate (230), the right guard plate (240) and the front guard plate (220) are all connected to the support plate (210), and the left guard plate (230) and the right guard plate (240) are located at the left and right ends of the front guard plate (220), respectively. The left guard plate (230), the right guard plate (240), and the front guard plate (220) are all hollow inside, and the support plate (210) is provided with a receiving groove (211); the left guard plate (230), the right guard plate (240), and the front guard plate (220) are all provided with openings so that the receiving groove (211), the interior of the left guard plate (230), the interior of the right guard plate (240), and the interior of the front guard plate (220) are connected. The left tube rack (120) is located inside the left guard plate (230), the right tube rack (130) is located inside the right guard plate (240), the main tube rack (110) is located inside the front guard plate (220), and the support tube rack (140) is located inside the receiving groove.
9. Scooter saddle according to claim 8, characterized in that Limiting plates (150) are provided on the left tube frame (120) and / or the right tube frame (130); both the left guard plate (230) and the right guard plate (240) are provided with notches (250) for avoiding the limiting plates (150).
10. A tricycle characterized in that, Includes the rear seat of a tricycle as described in any one of claims 1 to 9.