A folding seat for a mobility scooter

Abstract

The utility model discloses a folding seat for scooter, including chair surface main part, chair back main part and chair surface support subassembly. The chair surface support subassembly includes two folding support units of two symmetries setting on the chair surface main part. The utility model discloses the folding support unit below the chair surface is set as the first folding rod, the second folding rod of cross hinged, and the limiting support rod of setting at the second folding rod bottom. Among them, the limiting support rod both ends are respectively with the second folding rod and the frame hinged, and are equipped with the support surface to the side close to the second folding rod. When the limiting support rod is in the support position, the limiting support rod is in the inclined state, and the support surface on the limiting support rod and the abutting surface of the second folding rod are in abutment, so that the rotation of the second folding rod can form the limiting locking through the support surface on the limiting support rod, effectively avoid folding when the second folding rod is subjected to the downward pressure, effectively improve the support stability to the chair surface main part.

Description

Technical Field

[0001] This utility model belongs to the field of mobility scooter technology, specifically relating to a folding seat for mobility scooters. Background Technology

[0002] Mobility scooters are mobility aids, especially suitable for the elderly and people with disabilities. For ease of storage and transport, they typically need to be compact. Currently, foldable mobility scooters often reduce their size by folding the handlebars and seat.

[0003] Chinese Patent Publication No. CN206394755U discloses a seat folding mechanism and a three-wheeled mobility scooter having the same. The seat folding mechanism includes a lifting and folding mechanism and a locking mechanism. One end of the lifting and folding mechanism is mounted on the frame of the three-wheeled mobility scooter, and the other end is mounted on the seat cushion of the three-wheeled mobility scooter. Lifting the seat cushion causes the lifting and folding mechanism to move upward and unfold. Pressing down the seat cushion causes the lifting and folding mechanism to move downward and fold. One end of the locking mechanism is mounted on the lifting and folding mechanism, and the other end is mounted on the backrest of the three-wheeled mobility scooter.

[0004] In the aforementioned folding seat structure, the bottom of the folding chair uses a sliding rod to limit its movement during folding. However, this structure has a tendency for the sliding rod to fold back to its original position when the user sits on the folding chair or when braking, placing a heavy burden on the locking mechanism on the sliding rod. Over long-term use, this can easily cause the pins in the locking mechanism to loosen, leading to the folding chair folding automatically when pressed down by the user, thus causing inconvenience. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a folding seat for mobility scooters, which solves the technical problem that the sliding rod folding chair structure is prone to damage to the locking structure during use.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A folding seat for a mobility scooter includes a seat body, a backrest body, and a seat support assembly. The bottom of the backrest body rotatably engages with the seat body. The seat support assembly includes two folding support units symmetrically arranged on the seat body.

[0007] The folding support unit includes a limiting support rod, a first folding rod, and a second folding rod. The middle portions of the first and second folding rods are hinged together; both ends of the first folding rod are hinged to the bottom ends of the frame and the seat back body, respectively. The top end of the second folding rod is hinged to the seat surface body, and the bottom end is connected to the frame via the limiting support rod.

[0008] The limiting support rod is provided with a support surface that cooperates with the second folding rod, which can form a limiting support when the second folding rod abuts against it.

[0009] Furthermore, the limiting support rod is divided into a connecting part and a limiting part disposed above the top outer edge of the connecting part. Both ends of the connecting part are hinged to the vehicle frame and the second folding rod, respectively. The supporting surface is disposed on the limiting part. The bottom of the second folding rod has an abutment surface that mates with the supporting surface.

[0010] Furthermore, the chair back body includes an outer frame and a backrest mounted on the outer frame. The bottom of the outer frame rotatably engages with the chair seat body. The bottom of the outer frame extends inward and has a hinge portion that engages with a first folding rod. The first folding rod and the hinge portion are hinged together. A locking fastener is provided between the outer frame and the chair seat body for locking or unlocking the outer frame when it is flipped over.

[0011] Furthermore, a mounting plate is provided at the bottom of the main seat body. A connecting plate that mates with the mounting plate is provided on the outer frame. The mounting plate and the connecting plate are rotatably engaged by a rotating pin.

[0012] Furthermore, the connecting plate and the mounting plate are respectively provided with a first locking hole and a second locking hole. In the initial state, the axes between the first locking hole and the second locking hole are aligned, and the inner end of the locking fastener is inserted into the first locking hole and the second locking hole.

[0013] Furthermore, the rotating pins between the mounting plate and the connecting plate are spaced apart from the rotating shafts between the hinge and the first folding rod.

[0014] Furthermore, the bottom end of the second folding rod is provided with a clearance groove that cooperates with the limiting support rod.

[0015] Compared with the prior art, the present invention has the following advantages: This invention features a folding support unit beneath the chair seat consisting of a first folding rod, a second folding rod, and a limiting support rod located at the bottom of the second folding rod. The limiting support rod is hinged at both ends to the second folding rod and the frame, respectively, and has a support surface near the second folding rod. When the limiting support rod is in the supported position, it is tilted, and the support surface on the limiting support rod abuts against the contact surface of the second folding rod. This allows the rotation of the second folding rod to be limited and locked by the support surface on the limiting support rod, effectively preventing folding when the second folding rod is subjected to downward pressure and significantly improving the stability of the chair seat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the relative positions of the second folding rod and the limiting support rod in this utility model; Figure 3 This is a schematic diagram of the structure of the second folding rod and the limiting support rod in this utility model. Figure 2 (Enlarged view of part A in the middle) Figure 4 This is a schematic diagram showing the relative positions of the seat support assembly and the backrest body in this utility model. Figure 5 This is a schematic diagram of the structure of the main body of the chair back in this utility model. Figure 4 (Enlarged view of part B in the middle section) Figure 6 This is a schematic diagram of the overall folded structure of this utility model; Figure 7 This is a schematic diagram showing the relative positions of the first and second folding rods in the folded state of this utility model.

[0017] Reference numerals: 100, frame; 1, seat body; 2, backrest body; 3, seat support assembly; 4, limiting support rod; 4-1, connecting part; 4-2, limiting part; 5, first folding rod; 6, second folding rod; 7, outer frame; 8, backrest; 9, mounting plate; 10, connecting plate; 11, hinge part; 12, first through hole; 13, first locking hole. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 , 2 As shown in Figure 3, a folding seat for a mobility scooter is mounted on the scooter's frame 100 and can be folded for storage, reducing the scooter's storage space. The folding seat includes a seat body 1, a backrest body 2, and a seat support assembly 3 disposed below the seat body 1. The seat body 1 is mounted on the scooter's frame 100 via the seat support assembly 3.

[0021] The seat support assembly 3 includes two symmetrically arranged folding support units on the seat body 1. Each folding support unit includes a limiting support rod 4, a first folding rod 5, and a second folding rod 6. The middle portions of the first folding rod 5 and the second folding rod 6 are hinged together, forming a cross-shaped arrangement. The two ends of the first folding rod 5 are hinged to the bottom of the frame 100 and the seat back body 2, respectively. The top end of the second folding rod 6 is hinged to the seat body 1, and its bottom end is connected to the frame 100 via the limiting support rod 4.

[0022] like Figure 3 As shown, the limiting support rod 4 is divided into a connecting part 4-1 and a limiting part 4-2 located above the top outer edge of the connecting part 4-1. The two ends of the connecting part 4-1 are hinged to the frame 100 and the second folding rod 6, respectively. The limiting part 4-2 has an inwardly extending support surface. The bottom of the second folding rod 6 has an abutment surface that mates with the support surface.

[0023] like Figure 4 , 6 As shown in Figure 7, during use, the limiting support rod 4 has two working positions: a supporting position and a folding position. When the limiting support rod 4 is in the supporting position, it is tilted, and the supporting surface on the limiting support rod 4 abuts against the contact surface of the second folding rod 6. This allows the rotation of the second folding rod 6 to be limited and locked by the supporting surface on the limiting support rod 4, effectively preventing the second folding rod 6 from folding under downward pressure and improving the stability of the support for the chair seat body 1. When the limiting support rod 4 switches from the supporting position to the folding position, it flips outward to a horizontal position, and the bottom of the second folding rod 6 moves outward under the action of the limiting support rod 4, thereby realizing the folding of the second folding rod 6.

[0024] like Figure 4 and 5 As shown, the chair back body 2 includes an outer frame 7 and a backrest 8 mounted on the outer frame 7. The bottom of the outer frame 7 is rotatably engaged with the chair seat body 1. The bottom of the outer frame 7 extends downward and is provided with a hinge portion 11 that engages with the first folding rod 5. The first folding rod 5 and the hinge portion 11 are hinged together.

[0025] A locking device is provided between the outer frame 7 and the seat body 1 to lock or unlock the outer frame 7 when it is flipped, thereby locking the rotation and folding between the first folding rod 5 and the second folding rod 6.

[0026] Specifically, the bottom of the chair seat body 1 is provided with an integrally formed mounting plate 9. The outer frame 7 is provided with a connecting plate 10 that mates with the mounting plate 9. The connecting plate 10 and the mounting plate 9 are respectively provided with a first through hole 12 and a second through hole. The first through hole 12 is provided with a rotating pin. The outer end of the rotating pin passes through the second through hole on the connecting plate 10, thereby realizing the rotational engagement between the outer frame 7 and the chair seat body 1.

[0027] Furthermore, the connecting plate 10 and the mounting plate 9 are respectively provided with a first locking hole 13 and a second locking hole. In the initial state, the axes between the first locking hole 13 and the second locking hole are aligned, and the inner end of the locking fastener is inserted into the first locking hole 13 and the second locking hole, thereby realizing the rotational locking between the outer frame 7 and the seat body 1. When the seat needs to be folded and stored, the staff can unlock the rotation between the outer frame 7 and the seat body 1 by pulling out the locking fastener.

[0028] In this embodiment, the pivots between the first through hole 12, the hinge part 11, and the first folding rod 5 are spaced apart, so that when the outer frame 7 is flipped to the side of the chair body 1, it will drive the bottom hinge part 11 to move outward, thereby providing movement space for the folding of the first folding rod 5, so that the first folding rod 5 can be folded smoothly.

[0029] Furthermore, the bottom end of the second folding rod 6 is provided with a clearance groove that cooperates with the limiting support rod 4, so that the limiting support rod 4 can enter the clearance groove during the outward rotation, thereby avoiding interference between the limiting support rod 4 and the second folding rod 6 and enabling the second folding rod 6 to fold smoothly.

[0030] 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 folding seat for a mobility scooter, comprising a seat body (1), a backrest body (2), and a seat support assembly (3), characterized in that: The bottom of the backrest body (2) is rotatably engaged with the seat body (1); the seat support assembly (3) includes two folding support units symmetrically arranged on the seat body (1); The folding support unit includes a limiting support rod (4), a first folding rod (5), and a second folding rod (6); the middle part of the first folding rod (5) and the middle part of the second folding rod (6) are hinged together; the two ends of the first folding rod (5) are respectively hinged together with the bottom end of the frame (100) and the backrest body (2); the top end of the second folding rod (6) is hinged together with the seat body (1), and the bottom end is connected to the frame (100) through the limiting support rod (4); The limiting support rod (4) is provided with a support surface that cooperates with the second folding rod (6), which can form a limiting support when the second folding rod (6) abuts against it.

2. A folding seat for a mobility scooter according to claim 1, characterized in that: The limiting support rod (4) is divided into a connecting part (4-1) and a limiting part (4-2) disposed above the top outer edge of the connecting part (4-1); the two ends of the connecting part (4-1) are respectively hinged to the frame (100) and the second folding rod (6); the supporting surface is disposed on the limiting part (4-2); the bottom of the second folding rod (6) is provided with an abutting surface that cooperates with the supporting surface.

3. A folding seat for a mobility scooter according to claim 1, characterized in that: The chair back body (2) includes an outer frame (7) and a backrest (8) mounted on the outer frame (7); the bottom of the outer frame (7) is rotatably engaged with the seat body (1); the bottom of the outer frame (7) extends downward and is provided with a hinge part (11) that engages with the first folding rod (5); the first folding rod (5) and the hinge part (11) are hinged together; a locking fastener is provided between the outer frame (7) and the seat body (1) for locking or unlocking the outer frame (7) when it is flipped.

4. A folding seat for a mobility scooter according to claim 3, characterized in that: The bottom of the chair seat body (1) is provided with a mounting plate (9); the outer frame (7) is provided with a connecting plate (10) that cooperates with the mounting plate (9); the mounting plate (9) and the connecting plate (10) are rotatably engaged by a rotating pin.

5. A folding seat for a mobility scooter according to claim 4, characterized in that: The connecting plate (10) and the mounting plate (9) are respectively provided with a first locking hole (13) and a second locking hole; in the initial state, the axes between the first locking hole (13) and the second locking hole are aligned, and the inner end of the locking device is inserted into the first locking hole (13) and the second locking hole.

6. A folding seat for a mobility scooter according to claim 4, characterized in that: The rotating pin between the mounting plate (9) and the connecting plate (10) is spaced apart from the rotating shaft between the hinge part (11) and the first folding rod (5).

7. A folding seat for a mobility scooter according to claim 1, characterized in that: The bottom end of the second folding rod (6) is provided with a relief groove that cooperates with the limiting support rod (4).

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