Backseat structure of tricycle and tricycle

Abstract

The utility model discloses a rear seat structure of a tricycle and the tricycle. The rear seat structure comprises a frame, a bottom plate and four side plates. The frame is used for connecting two rear wheels of the tricycle. And the bottom plate is arranged on the frame between the two rear wheels. The four side plates are all hinged to the bottom plate and can be folded relative to the bottom plate. Wherein after the four side plates are rotated and folded in the direction close to the bottom plate, the four side plates are tightly attached to the bottom plate, and then a plate-shaped body with a plane can be formed. After the four side plates are rotationally unfolded in the direction away from the bottom plate, the four side plates and the bottom plate can define a box-shaped body with a containing cavity. According to the backseat structure, a folding and unfolding mode is creatively used for switching between a manned function and an object carrying function, so that the backseat structure does not only achieve the single manned function or object carrying function any more, the applicability of the backseat structure is improved, the backseat structure can meet the use requirements of a user in different scenes of manned or object carrying, and the user experience is improved. And the user experience feeling is obviously improved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of rear seat mechanisms of tricycles, and more specifically, the utility model relates to a rear seat structure of a tricycle and a tricycle. Background Art

[0002] With the increasing congestion of urban traffic and the improvement of environmental awareness, tricycles have been favored by consumers as a convenient and environmentally friendly short-distance transportation tool. With its economical and practical characteristics, tricycles have shown a wide range of application value in logistics, transportation, daily commuting and other fields.

[0003] However, the rear seat structure of existing tricycles is often limited to a single function, that is, the rear seat structure can only realize the function of carrying people or only realize the function of carrying goods, and cannot switch between the two functions, resulting in poor applicability of the rear seat structure of the tricycle and relatively single function, which is difficult to meet the user's usage needs in different usage scenarios, seriously affecting the user experience. Utility Model Content

[0004] In order to solve one or more of the technical problems mentioned above, the utility model provides a rear seat structure of a tricycle and a tricycle, which can switch between a passenger carrying function and a cargo carrying function to improve the applicability of the rear seat structure, thereby meeting the user's usage needs in different usage scenarios and significantly improving the user experience.

[0005] The utility model provides a rear seat structure of a tricycle, comprising:

[0006] A frame for connecting two rear wheels of the tricycle;

[0007] a bottom plate disposed on the frame between the two rear wheels; and

[0008] Four side panels, each of which is hinged to the bottom panel and can be folded relative to the bottom panel;

[0009] Wherein, after the four side panels are rotated and folded in a direction close to the bottom panel, the four side panels and the bottom panel are tightly attached to form a flat plate-shaped body;

[0010] After the four side panels are rotated and unfolded in a direction away from the bottom panel, the four side panels can be surrounded by the bottom panel to form a box-shaped body with a containing cavity.

[0011] The rear seat structure utilizes the hinged setting of the four side panels and the bottom plate on the frame so that the four side panels can be folded and unfolded. The rear seat structure is innovatively switched between the passenger function and the cargo function by folding and unfolding, so that the rear seat structure no longer only realizes a single passenger function or cargo function, and improves the applicability of the rear seat structure, so that the rear seat structure can meet the user's use needs in different scenarios of passenger or cargo, and significantly improves the user experience. Since only the four side panels need to be rotated, the user can fold and unfold the four side panels without any effort to achieve the purpose of switching the passenger function and the cargo function, making it easier and more convenient for the user to perform the switching operation, and young children, adults or elderly people can quickly get started. Moreover, there is no need to disassemble certain components of the rear seat structure to switch between the passenger function and the cargo function, and it can also effectively avoid the occurrence of situations such as pinching hands or bumping limbs during the disassembly process.

[0012] Furthermore, the rear seat structure also includes a pair of locking components arranged on a group of two parallel side panels and capable of locking three adjacent side panels among the four side panels, the locking component includes a handle and two abutment members penetrating the side panels and connected to the handles, and pulling the handles can drive the two abutment members to respectively press against the adjacent side panels on both sides to lock three adjacent side panels among the four side panels.

[0013] Furthermore, the frame includes a connecting tube body for connecting the two rear wheels and a main supporting tube body provided on the outer wall of the connecting tube body and used for supporting the bottom plate.

[0014] Furthermore, two main supporting tube bodies are provided, and the frame also includes a middle tube for placing the seat of the tricycle, wherein one of the main supporting tube bodies is provided on a side close to the middle tube, and the other main supporting tube body is provided on a side away from the middle tube.

[0015] Furthermore, the frame also includes a support plate arranged along the riding direction of the tricycle and used to connect the two main support tubes to the base plate. The two main support tubes, the support plate and the connecting tube are connected to form a triangular structure. The connecting tube corresponds to the first vertex of the triangular structure, and the connection point of one of the main support tubes and the support plate corresponds to the second vertex of the triangular structure, and the connection point of the other main support tube and the support plate corresponds to the third vertex of the triangular structure.

[0016] Furthermore, two support plates are provided along the riding direction of the tricycle, and the two support plates are spaced apart along the axial direction of the connecting tube body.

[0017] Furthermore, the frame also includes a secondary supporting tube body arranged on the outer wall of the connecting tube body and a reinforcing tube body having one end connected to the secondary supporting tube body and the other end connected to the supporting tube body on a side away from the middle tube.

[0018] Furthermore, the four side panels are divided into two groups, wherein two side panels in one group that are parallel to each other are folded first, and then two side panels in another group that are parallel to each other are folded, so as to enhance the supporting strength of the plate-like body.

[0019] Furthermore, each of the side panels is provided with crisscross reinforcing ribs.

[0020] The embodiment of the utility model further provides a tricycle, which comprises a front wheel and the above-mentioned rear wheel mechanism, wherein the frame in the rear seat structure is connected to the front wheel.

[0021] By improving the rear seat structure, the tricycle can switch between the passenger carrying function and the cargo carrying function, thereby improving the applicability of the rear seat structure, meeting the user's usage needs in different usage scenarios, and significantly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0023] Figure 1 The schematic diagram of the structure of the tricycle provided by the embodiment of the utility model when carrying goods is shown;

[0024] Figure 2 The schematic diagram of the structure of the tricycle provided by the embodiment of the utility model when carrying people is shown;

[0025] Figure 3 A schematic structural diagram of a rear seat structure provided by an embodiment of the utility model is shown;

[0026] Figure 4 The schematic diagram of the structure of the vehicle frame provided by the embodiment of the utility model is shown.

[0027] In the figure:

[0028] 1. Frame; 11. Connecting tube; 12. Main supporting tube; 13. Middle tube; 14. Support plate; 15. Secondary supporting tube; 16. Strengthening tube;

[0029] 2. Bottom plate;

[0030] 3. Side panels; 31. Reinforcement ribs;

[0031] 4. Locking assembly; 41. Handle; 42. Abutment;

[0032] 100, rear wheel; 200, front wheel. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0034] Figure 1 The schematic diagram of the structure of the tricycle provided by this embodiment when carrying goods is shown. Figure 2 FIG. 2 shows a schematic diagram of the structure of the tricycle provided by this embodiment when carrying people. Figure 1 and Figure 2 As shown, this embodiment provides a tricycle, including a front wheel 200 and a rear seat structure, wherein a frame 1 of the rear seat structure is connected to the front wheel 200. By improving the rear seat structure, the tricycle can switch between a passenger function and a cargo function, thereby improving the applicability of the rear seat structure, meeting the user's use needs in different use scenarios, and significantly improving the user experience.

[0035] Figure 3 FIG. 2 shows a schematic diagram of the structure of the rear seat provided in this embodiment. Figure 3 Combined with Figure 1 and Figure 2 As shown, in another embodiment, a rear seat structure of a tricycle is provided, which includes a frame 1, a bottom plate 2 and four side plates 3. The frame 1 is used to connect the two rear wheels 100 of the tricycle. The bottom plate 2 is arranged on the frame 1 between the two rear wheels 100. The four side plates 3 are hinged to the bottom plate 2 and can be folded relative to the bottom plate 2. Among them, after the four side plates 3 are rotated and folded in a direction close to the bottom plate 2, the four side plates 3 can form a plate-like body with a plane after being tightly attached to the bottom plate 2. After the four side plates 3 are rotated and unfolded in a direction away from the bottom plate 2, the four side plates 3 can be surrounded with the bottom plate 2 to form a box-like body with a accommodating cavity.

[0036] When the rear seat structure needs to carry people, the four side panels 3 are rotated and folded around the hinge points with the bottom plate 2 toward the bottom plate 2, and the side walls of the four side panels 3 close to the bottom plate 2 are closely attached to the bottom plate 2, thereby forming a plate-like body with a flat surface on the top. At this time, the user can use the plate-like body as a seat plate in a traditional rear seat structure and sit on the flat surface of the plate-like body, thereby realizing the carrying function of the rear seat structure.

[0037] When the rear seat structure needs to carry objects, the four side panels 3 are rotated and unfolded around the hinge points with the bottom panel 2 in a direction away from the bottom panel 2, so that the bottom panel 2 and the four side panels 3 form a box-shaped body with a receiving cavity. At this time, the user can put the objects to be placed into the receiving cavity of the box-shaped body formed by the bottom panel 2 and the four side panels 3, so as to realize the carrying function of the rear seat structure.

[0038] The rear seat structure utilizes the hinged setting of the four side panels 3 and the bottom plate 2 on the frame 1, so that the four side panels 3 can be folded and unfolded. The rear seat structure is innovatively switched between the passenger function and the cargo function by folding and unfolding, so that the rear seat structure no longer only realizes a single passenger function or cargo function, and improves the applicability of the rear seat structure, so that the rear seat structure can meet the user's use needs in different scenarios of passenger or cargo, and significantly improves the user experience. Since only the four side panels 3 need to be rotated, the user can fold and unfold the four side panels 3 without any effort to achieve the purpose of switching the passenger function and the cargo function, making it easier and more convenient for the user to switch, and young children, adults or elderly people can quickly get started. Moreover, it is not necessary to disassemble certain components of the rear seat structure to switch the passenger function and the cargo function, and it can also effectively avoid the occurrence of situations such as pinching hands or bumping limbs during the disassembly process.

[0039] Furthermore, the rear seat structure also includes a pair of locking components 4 disposed on a set of two mutually parallel side panels 3 and capable of locking three adjacent side panels 3 among the four side panels 3. The locking components 4 include a handle 41 and two abutment members 42 that penetrate the side panels 3 and are connected to the handle 41. Pulling the handle 41 can drive the two abutment members 42 to respectively abut against the adjacent side panels 3 on both sides, so as to lock three adjacent side panels 3 among the four side panels 3. When it is necessary to switch to the loading function, after the four side panels 3 are rotated and unfolded in a direction away from the bottom panel 2, the handle 41 is pulled and the two abutment members 42 are driven to abut against two adjacent side panels 3 respectively, so as to achieve locking of three adjacent side panels 3 among the four side panels 3. By setting a locking assembly 4 on a set of two parallel side panels 3, all four side panels 3 can be locked, so that the four side panels 3 and the bottom panel 2 are surrounded to form a stable box-shaped body, so as to ensure that the rear seat structure can maintain a stable shape after being switched to the loading state by the user, and prevent the rear seat structure from being deformed and collapsed due to external forces, affecting the objects placed in the accommodating cavity. When it is necessary to switch to the passenger function, the handle 41 is moved in the opposite direction of the handle 41 when switching to the loading function, so that the four side panels 3 are unlocked, so as to smoothly switch to the passenger function.

[0040] In this embodiment, the locking assembly 4 locks the three side panels 3 by abutting the two side panels 3 adjacent to the side panel 3 on which the locking assembly 4 is installed through the abutment member 42. In other embodiments, the locking assembly 4 can also be configured to lock by inserting a plug-in rod passing through two adjacent side panels 3. This embodiment does not specifically limit the specific locking method of the locking assembly 4, and any interlocking structure that can achieve the above locking method should be within the protection scope of the disclosed embodiment.

[0041] Preferably, each side panel 3 is provided with crisscross reinforcing ribs 31 to strengthen the supporting strength of each side panel 3, thereby ensuring that the rear seat structure can form a stable structure whether it is switched to the passenger function or the cargo function.

[0042] Specifically, the abutment member 42 passes through the reinforcing rib 31 on the corresponding side plate 3 and then abuts against the adjacent side plate 3 , thereby achieving the setting of the locking assembly 4 on the side plate 3 .

[0043] Preferably, the four side panels 3 are divided into two groups, one group of two parallel side panels 3 is folded first, and the other group of two parallel side panels 3 is folded later. By folding the two groups of side panels 3 in sequence, the thickness of the plate-like body formed by folding the four side panels 3 and the bottom plate 2 is increased without increasing the thickness of the side panels 3, so as to improve the supporting strength of the plate-like body when the rear seat structure is adjusted to the passenger function, thereby improving the upper limit of the load-bearing capacity of the plate-like body formed by folding the four side panels 3 and the bottom plate 2.

[0044] Since the rear seat structure is mainly used in tricycles, tricycles are rarely used to carry heavy objects in daily commuting or short-distance travel. However, due to the need for the passenger function, it is necessary to adaptively improve the frame 1 of the tricycle to meet the need for the passenger function.

[0045] Figure 4 FIG. 1 shows a schematic diagram of the structure of the vehicle frame 1 provided in this embodiment. Figure 4 Combined with Figure 1-Figure 3 As shown, the frame 1 includes a connecting tube body 11 for connecting two rear wheels 100 and a main supporting tube body 12 arranged on the outer wall of the connecting tube body 11 and used to support the bottom plate 2, so as to provide effective support for the bottom plate 2, thereby ensuring the normal riding of the tricycle when carrying passengers.

[0046] Furthermore, two main support tube bodies 12 are provided, and the frame 1 also includes a middle tube 13 for placing a seat of the tricycle, wherein one main support tube body 12 is provided on a side close to the middle tube 13, and the other main support tube body 12 is provided on a side away from the middle tube 13, so as to disperse the pressure generated by the user sitting on the plate-like body formed by folding the four side panels 3 and the bottom panel 2 to the two main support tube bodies 12, thereby avoiding bending caused by excessive pressure on one main support tube body 12, thereby strengthening the support for the bottom panel 2.

[0047] Furthermore, the frame 1 further includes a support plate 14 arranged along the riding direction of the tricycle and used to connect the two main support tubes 12 with the bottom plate 2. The two main support tubes 12, the support plate 14 and the connecting tube 11 are connected to form a triangular structure, the connecting tube 11 corresponds to the first vertex of the triangular structure, the connection point of one main support tube 12 and the support plate 14 corresponds to the second vertex of the triangular structure, and the connection point of the other main support tube 12 and the support plate 14 corresponds to the third vertex of the triangular structure. The support tube and the bottom surface of the bottom plate 2 can be connected through the support plate 14, thereby providing a connection carrier for the bottom plate 2 and the main support tube 12, and the pressure of a part of the bottom plate 2 on the support tube can be dispersed to the support plate 14, so as to further provide support for the bottom plate 2. And by utilizing the good stability of the triangular structure, the pressure generated by the user sitting on the plate-like body formed after the four side plates 3 and the bottom plate 2 are folded can be effectively dispersed, thereby improving the support strength of the frame 1 and ensuring that the rear seat structure of the tricycle can be more stable when carrying people.

[0048] Specifically, two support plates 14 are arranged along the riding direction of the tricycle, and the two support plates 14 are arranged at intervals along the axial direction of the connecting tube body 11 to better disperse the pressure exerted by a part of the bottom plate 2 on the support tube body to the support plates 14 .

[0049] Since the rear seat structure is located at the rear, when the user sits on the plate-like body formed by the four side panels 3 and the bottom plate 2, the user (i.e., the user) will sit with his / her back to the riding direction, and the legs of the user will be placed on the plate-like body in a direction away from the middle tube 13. Therefore, the frame 1 also includes a secondary support tube body 15 arranged on the outer wall of the connecting tube body 11 and a reinforcing tube body 16 connected to the secondary support tube body 15 at one end and connected to the supporting tube body near the rear of the riding direction of the tricycle at the other end, so as to adapt to the riding style of the user and ensure that the frame 1 can provide effective support for the bottom plate 2 when the user sits.

[0050] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0051] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "upper", "bottom", "axial" and other terms indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of the present application, and are only for the purpose of facilitating the explanation of the scheme of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present utility model.

[0052] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0053] Although multiple embodiments of the utility model have been shown and described herein, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art may think of many changes, modifications and alternatives without departing from the idea and spirit of the utility model. It should be understood that in the process of practicing the utility model, various alternatives to the embodiments of the utility model described herein may be adopted. The attached claims are intended to define the scope of protection of the utility model, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A rear seat structure of a tricycle, characterized in that: include: A frame (1) for connecting two rear wheels (100) of a tricycle; a bottom plate (2) disposed on the frame (1) between the two rear wheels (100); and Four side panels (3), each of which is hinged to the bottom panel (2) and can be folded relative to the bottom panel (2); Wherein, after the four side panels (3) are rotated and folded in a direction close to the bottom panel (2), the four side panels (3) and the bottom panel (2) are tightly attached to form a flat plate-shaped body; After the four side panels (3) are rotated and unfolded in a direction away from the bottom panel (2), the four side panels (3) can be arranged together with the bottom panel (2) to form a box-shaped body with a containing cavity.

2. The rear seat structure according to claim 1, characterized in that: The rear seat structure further comprises a pair of locking components (4) which are arranged on a group of two mutually parallel side panels (3) and are capable of locking three adjacent side panels (3) among the four side panels (3); the locking components (4) comprise a handle (41) and two abutment members (42) which are passed through the side panels (3) and connected to the handle (41); pulling the handle (41) can drive the two abutment members (42) to respectively abut against the adjacent side panels (3) on both sides, so as to lock the three adjacent side panels (3) among the four side panels (3).

3. The rear seat structure according to claim 1, characterized in that: The vehicle frame (1) comprises a connecting tube body (11) for connecting the two rear wheels (100) and a main supporting tube body (12) arranged on the outer wall of the connecting tube body (11) and used for supporting the bottom plate (2).

4. The rear seat structure according to claim 3, characterized in that: Two main supporting tube bodies (12) are provided, and the frame (1) also includes a middle tube (13) for placing a seat of the tricycle, wherein one of the main supporting tube bodies (12) is provided on a side close to the middle tube (13), and the other main supporting tube body (12) is provided on a side away from the middle tube (13).

5. The rear seat structure according to claim 4, characterized in that: The frame (1) further comprises a support plate (14) arranged along the riding direction of the tricycle and used for connecting the two main support tubes (12) to the bottom plate (2); the two main support tubes (12), the support plate (14) and the connecting tube (11) are connected to form a triangular structure; the connecting tube (11) corresponds to a first vertex of the triangular structure, a connection point between one of the main support tubes (12) and the support plate (14) corresponds to a second vertex of the triangular structure, and a connection point between the other main support tube (12) and the support plate (14) corresponds to a third vertex of the triangular structure.

6. The rear seat structure according to claim 5, characterized in that: Two support plates (14) are arranged along the riding direction of the tricycle, and the two support plates (14) are arranged at intervals along the axial direction of the connecting pipe body (11).

7. The rear seat structure according to claim 4, characterized in that: The vehicle frame (1) further comprises a secondary supporting tube body (15) arranged on the outer wall of the connecting tube body (11) and a reinforcing tube body (16) having one end connected to the secondary supporting tube body (15) and the other end connected to the supporting tube body on a side away from the middle tube (13).

8. The rear seat structure according to claim 1, characterized in that: The four side panels (3) are divided into two groups, wherein two side panels (3) in parallel with each other in one group are folded first, and then two side panels (3) in parallel with each other in another group are folded, so as to enhance the supporting strength of the plate-like body.

9. The rear seat structure according to claim 1, characterized in that: Each of the side panels (3) is provided with crisscross reinforcing ribs (31).

10. A tricycle, characterized in that: It comprises a front wheel (200) and a rear seat structure as claimed in any one of claims 1 to 9, wherein the frame (1) in the rear seat structure is connected to the front wheel (200).

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