Rotary seat structure of scooter for old people

Abstract

The utility model discloses a rotary seat structure of a scooter for old people, which belongs to the technical field of scooter seats and comprises a seat cushion fixing frame and a seat cushion rotary frame which are connected through a rotary connecting piece. The rotary connecting piece comprises a fixed ring and an outer gear ring; an accommodating groove is formed in the upper surface of the cushion fixing frame; the fixing ring is coaxially and fixedly mounted on the bottom surface of the accommodating groove; the outer gear ring is mounted on the lower bottom surface of the seat cushion rotating frame; the outer gear ring is rotationally installed on the outer side face of the fixing ring. A limiting assembly used for limiting rotation of the outer gear ring is installed in the cushion fixing frame. The limiting assembly is arranged, and the movable limiting piece is driven to slide outwards through extension or contraction of the electric telescopic rod, so that the locking teeth are connected with the outer gear ring in a meshed mode; the seat cushion rotating frame can be stably fixed after being rotated by any angle, and convenience and practicability are achieved; and meanwhile, rollers are rotationally mounted at the tail ends of the locking teeth, so that the locking teeth can be conveniently matched into tooth grooves of the outer gear ring, and convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobility scooter seats, in particular to a rotating seat structure of a mobility scooter for the elderly. Background Art

[0002] Electric scooters are becoming increasingly popular, especially among the elderly. Existing scooters for the elderly often have fixed seats, which makes it difficult for the elderly or those with limited mobility to get on and off the vehicle. Therefore, movable seat structures have emerged on the market, which allow for adjustable seat angles to make it easier for the elderly to ride.

[0003] For example, a rotating seat structure of an electric scooter for the elderly with announcement number CN213705637 includes a seat cushion fixing frame and a seat cushion rotating frame. The seat cushion rotating frame can rotate horizontally, which greatly facilitates the elderly and people with mobility difficulties to get on and off the vehicle; the seat cushion rotating frame needs to be positioned after stopping to facilitate the driver to sit safely, so a limit block and a limit handle are respectively provided on the seat cushion rotating frame and the seat cushion fixing frame, the limit block includes a first limit block and a second limit block, the angle between the first limit block and the second limit block is 90 degrees, the first limit block is installed on the front side of the seat cushion rotating frame, and the second limit block is installed on the seat cushion rotating frame. On the left side of the seat cushion rotating frame, when the second limit block fixes the seat cushion rotating frame, the seat cushion rotating frame is in a deflected state, which is convenient for the elderly to get on or leave the mobility scooter; when the first limit block fixes the seat cushion rotating frame, the seat cushion rotating frame faces forward, and the elderly can drive the mobility scooter normally. However, in this seat structure, there are only two limit blocks, and the rotation angle of the seat cushion rotating frame is only 90°. The elderly can only get on and off the vehicle at a specific position, which is equivalent to a limited adjustment range of the getting on and off position, which still brings inconvenience to the elderly. In order to solve the above problems, the utility model provides a rotating seat structure of a mobility scooter for the elderly. Summary of the Invention

[0004] In response to the above-mentioned technical deficiencies, the purpose of the present utility model is to provide a rotating seat structure for an elderly mobility scooter. By arranging a rotation adjustment component between the seat cushion fixing frame and the seat cushion rotating frame, the rotation adjustment range of the seat cushion rotating frame is broadened to achieve stable fixation of the seat cushion rotating frame after rotating to any angle, thereby solving the technical problems raised in the background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The utility model provides a rotating seat structure of a mobility scooter for the elderly, comprising a seat cushion fixing frame and a seat cushion rotating frame; the seat cushion rotating frame is rotatably connected to the upper end of the seat cushion fixing frame along a vertical axis, a rotation adjustment component is provided between the seat cushion fixing frame and the seat cushion rotating frame, and the rotation adjustment component comprises an outer gear ring and a movable limiting member; the outer peripheral surface of the outer gear ring has a circle of teeth; the movable limiting member is provided with locking teeth for engaging with the teeth of the outer gear ring; the outer gear ring is arranged on the lower end surface of the seat cushion rotating frame, and the movable limiting member is arranged on the seat cushion fixing frame;

[0007] The movable limiting member can move in a direction close to or away from the outer gear ring, and the locking teeth on the movable limiting member can engage with or disengage from the teeth of the outer gear ring, so that the seat cushion rotating frame remains locked on the seat cushion fixing frame or rotates freely.

[0008] Preferably, an accommodating groove is provided on the upper surface of the seat cushion fixing frame; a fixing ring is provided at the bottom of the accommodating groove; the outer gear ring is sleeved outside the fixing ring, so that the seat cushion rotating frame rotates along the vertical axis and is connected to the upper end of the seat cushion fixing frame; the fixing ring is equivalent to a hollow rotating support shaft, which can provide rotation support for the outer gear ring so that the seat cushion rotating frame can rotate freely.

[0009] Preferably, a horizontal slide groove connected to the accommodating groove is provided on the seat cushion fixing frame; the movable limiting member is slidably installed in the horizontal slide groove to drive the locking teeth on the movable limiting member to approach or move away from the teeth of the outer gear ring; the movable limiting member moves in a sliding manner, and the locking teeth are controlled to engage or disengage with the teeth of the outer gear ring by sliding the movable limiting member, so as to control the seat cushion rotating frame to rotate or remain locked.

[0010] Preferably, a cylindrical groove is provided at the tooth top position of the locking tooth, and a roller is rotatably installed in the cylindrical groove to guide the engagement of the locking tooth with the tooth portion of the outer gear ring; even if there is a slight deviation in the position of the engagement of the locking tooth with the tooth portion of the outer gear ring, the roller can successfully engage the locking tooth with the tooth portion of the outer gear ring by its own rotation.

[0011] Preferably, a driving assembly is further included, which can act on the movable limiting member to make the locking teeth on the movable limiting member engage with or disengage the teeth of the outer gear ring.

[0012] Preferably, the driving assembly includes a driving slider; a guide groove connected to the horizontal slide groove is opened on the seat cushion fixing frame, and the driving slider is slidably installed in the guide groove; a wedge-shaped surface A is provided on the driving slider, and a wedge-shaped surface B matching the wedge-shaped surface A is provided on the movable limit member; the driving slider slides in the guide groove and causes the wedge-shaped surface A to squeeze the wedge-shaped surface B, thereby driving the movable limit member close to the outer gear ring, so that the locking teeth on the movable limit member engage with the teeth of the outer gear ring; the movable limit member is driven by setting the wedge-shaped inclined surface so that the locking teeth engage with the teeth of the outer gear ring, which is simple to operate and easy to control.

[0013] Preferably, the drive assembly also includes an elastic member acting on the movable limit member. When the driving slider slides in the guide groove and causes the wedge surface A to squeeze the wedge surface B, the movable limit member approaches the outer ring gear, and the elastic member is deformed and stores elastic force. When the driving slider slides in the guide groove in the opposite direction and causes the wedge surface A to separate from the wedge surface B, the elastic member releases the elastic force and acts on the movable limit member to move away from the outer ring gear, so that the locking teeth on the movable limit member are separated from the teeth of the outer ring gear. When the seat cushion rotating frame needs to be unlocked, the elastic member can provide a reset force for the movable limit member, so that the locking teeth on the movable limit member are automatically separated from the teeth of the outer ring gear.

[0014] Preferably, the movable limiting member is symmetrically provided with limiting slide blocks on both sides; the limiting slide blocks are symmetrically opened on both sides of the horizontal slide block; the limiting slide blocks are slidably matched in the limiting slide blocks; the elastic member is a reset spring arranged between the limiting slide blocks and the corresponding side walls of the limiting slide blocks.

[0015] Preferably, the driving slider is connected to an electric telescopic rod; the electric telescopic rod is arranged in a guide groove; the electric telescopic rod is extended and retracted so that the wedge surface A on the driving slider and the wedge surface B on the movable limit member act or separate; the electric telescopic rod can provide power for the driving slider to slide, and the user does not need to manually control the driving slider.

[0016] Preferably, a control panel is embedded in the outer side of the seat cushion fixing frame, and a button for controlling the extension and retraction of the electric telescopic rod is provided on the control panel; by pressing the button, the extension and retraction of the electric telescopic rod can be controlled, thereby facilitating the control of the rotation or locking of the seat cushion rotating frame.

[0017] Preferably, the movable limit member has an arc surface at one end facing the outer gear ring, and a plurality of the locking teeth are evenly distributed along the circumferential direction on the arc surface; compared with a single locking tooth, the effect of multiple locking teeth evenly distributed along the circumferential direction being more stable when meshing with the teeth of the outer gear ring.

[0018] The beneficial effects of the present invention are:

[0019] By arranging a rotation adjustment component between the seat cushion fixing frame and the seat cushion rotating frame, the rotation adjustment component includes an outer gear ring provided at the lower end of the seat cushion rotating frame and having a circle of teeth, and a movable limiting member provided on the seat cushion fixing frame and having locking teeth. Since the outer gear ring has a circle of teeth, the seat cushion rotating frame can stay at any angle when rotating and is locked by the locking teeth on the movable limiting member, so that the rotation adjustment range of the seat cushion rotating frame is no longer limited to a smaller angle range, thereby widening the rotation adjustment range of the seat cushion rotating frame, making it more convenient for users to get on or leave the mobility scooter, and improving the user experience of the mobility scooter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1The utility model is a structural schematic diagram of the rotating seat structure of the elderly mobility scooter provided by the present invention.

[0021] Figure 2 for Figure 1 Right view of;

[0022] Figure 3 for Figure 2 Cross-sectional view of CC;

[0023] Figure 4 It is a horizontal cross-sectional view of the seat cushion fixing frame;

[0024] Figure 5 It is a structural diagram of the seat cushion rotating frame;

[0025] Figure 6 It is a structural diagram of the movable limiter and the return spring;

[0026] Figure 7 It is a structural diagram of the driving slider and the electric telescopic rod;

[0027] Explanation of the accompanying drawings: 1-seat cushion fixing frame, 11-accommodating groove, 12-horizontal slide, 121-limiting slide, 122-guide groove, 2-seat cushion rotating frame, 31-fixing ring, 32-outer gear ring, 41-movable limiting member, 411-locking tooth, 412-roller, 413-limiting slider, 414-wedge surface B, 42-return spring, 43-driving slider, 431-wedge surface A, 44-electric telescopic rod, 5-control panel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figures 1 to 7 As shown, this embodiment provides a rotating seat structure of a mobility scooter for the elderly, including a seat cushion fixing frame 1 and a seat cushion rotating frame 2; the seat cushion rotating frame 2 is rotatably connected to the upper end of the seat cushion fixing frame 1 along a vertical axis, and a rotation adjustment component is provided between the seat cushion fixing frame 1 and the seat cushion rotating frame 2, and the rotation adjustment component includes an outer gear ring 32 and a movable limiting member 41; the outer peripheral surface of the outer gear ring 32 has a circle of teeth, and the movable limiting member 41 is provided with locking teeth 411 for engaging with the teeth of the outer gear ring 32; the outer gear ring 32 is provided on the lower end surface of the seat cushion rotating frame 2, and the movable limiting member 41 is provided on the seat cushion fixing frame 1;

[0030] The movable limiting member 41 can move in the direction of approaching or moving away from the outer gear ring 32, and the locking teeth 411 on the movable limiting member 41 can engage with or disengage from the teeth of the outer gear ring 32, so that the seat cushion rotating frame 2 remains locked or rotates freely on the seat cushion fixing frame 1; since the outer gear ring 32 has a circle of teeth, the angular range of the seat cushion rotating frame 2 during rotation is widened to 360°, and the seat cushion rotating frame 2 can be locked by the movable limiting member 41, thereby making it easier for the elderly to get on or leave the mobility scooter.

[0031] Furthermore, the seat cushion rotating frame 2 and the seat cushion fixing frame 1 are rotationally connected as follows: a receiving groove 11 is provided on the upper surface of the seat cushion fixing frame 1; a fixing ring 31 is provided at the bottom of the receiving groove 11; the outer gear ring 32 is sleeved outside the fixing ring 31, so that the seat cushion rotating frame 2 is rotationally connected to the upper end of the seat cushion fixing frame 1 along the vertical axis; the fixing ring 31 is equivalent to a hollow rotating support shaft, which can provide rotation support for the outer gear ring 32, so that the seat cushion rotating frame 2 can rotate freely.

[0032] Furthermore, the movable limiting member 41 can move in a rotating or sliding manner. For the convenience of control and layout, the movable limiting member 41 in this embodiment adopts a sliding manner to control the engagement of the locking tooth 411 with the tooth portion of the outer gear ring 32. Specifically, a horizontal slide groove 12 connected to the accommodating groove 11 is provided on the seat cushion fixing frame 1; the movable limiting member 41 is slidably installed in the horizontal slide groove 12 to drive the locking tooth 411 on the movable limiting member 41 to move closer to or away from the tooth portion of the outer gear ring 32; the movable limiting member 41 moves in a sliding manner, and the locking tooth 411 is controlled to engage or separate with the tooth portion of the outer gear ring 32 by sliding the movable limiting member 41, so as to control the seat cushion rotating frame 2 to rotate or remain locked.

[0033] Furthermore, when the movable limit member 411 is close to the outer gear ring 32 and there is a small position deviation between the locking tooth 411 and the tooth portion of the outer gear ring 32, tooth collision is likely to occur. To avoid this situation, in this embodiment, a cylindrical groove is provided at the tooth top position of the locking tooth 411, and a roller 412 is rotatably installed in the cylindrical groove to guide the engagement of the locking tooth 411 with the tooth portion of the outer gear ring 32; even if there is a slight deviation in the position of the engagement of the locking tooth 411 with the tooth portion of the outer gear ring 32, the roller 412 can also successfully engage the locking tooth 411 with the tooth portion of the outer gear ring 32 by its own rotation.

[0034] Furthermore, in order to facilitate the control of the movable limiter 41, the seat further includes a driving assembly, which can act on the movable limiter 41 to make the locking teeth 411 on the movable limiter 41 engage or disengage with the teeth of the outer gear ring 32; specifically, the driving assembly includes a driving slider 43; a guide groove 122 connected to the horizontal slide groove 12 is provided on the seat cushion fixing frame 1, and the driving slider 43 is slidably installed in the guide groove 122; the driving slider 43 has a wedge-shaped surface A431, and the movable limiter 41 is engaged with or disengaged from the locking teeth 411 on the movable limiter 41. A wedge-shaped surface B414 matching the wedge-shaped surface A431 is provided on the limiting member 41; the driving slider 43 slides in the guide groove 122 and causes the wedge-shaped surface A431 to squeeze the wedge-shaped surface B414, thereby driving the movable limiting member 41 close to the outer gear ring 32, so that the locking teeth 411 on the movable limiting member 41 engage with the teeth of the outer gear ring 32; by setting the wedge-shaped inclined surface, the movable limiting member 41 is driven so that the locking teeth 411 engage with the teeth of the outer gear ring 32, which is simple to operate and easy to control.

[0035] Furthermore, in order to facilitate the resetting of the movable limit member 41 and the entry of the seat cushion rotating frame 2 into the rotation adjustment state, the driving assembly also includes an elastic member acting on the movable limit member 41. When the driving slider 43 slides in the guide groove 122 and causes the wedge surface A431 to squeeze the wedge surface B414, the movable limit member 41 approaches the outer ring gear 32. At this time, the elastic member deforms and stores elastic force; when the driving slider 43 slides in the guide groove 122 in the opposite direction and causes the wedge surface A431 to separate from the wedge surface B414, the elastic member releases the elastic force and acts on the movable limit member 41 to move away from the outer ring gear 32, so that the locking teeth 411 on the movable limit member 41 are separated from the teeth of the outer ring gear 32; when the seat cushion rotating frame 2 needs to be unlocked, the elastic member can provide a resetting force for the movable limit member 41, so that the locking teeth 411 on the movable limit member 41 are automatically separated from the teeth of the outer ring gear 32.

[0036] Furthermore, the setting structure of the elastic member in this embodiment is as follows: a limit slider 413 is symmetrically provided on both sides of the movable limit member 41; a limit slot 121 is symmetrically opened on both sides of the horizontal slot 12; the limit slider 413 is slidably matched in the limit slot 121; the elastic member is a return spring 42 arranged between the limit slider 413 and the corresponding side walls of the limit slot 121.

[0037] Furthermore, the movable limit member 41 is in the guide groove 122, and it is unrealistic to directly manually control the driving slider 43. Therefore, in this embodiment, an electric telescopic rod 44 is connected to the driving slider 43; the electric telescopic rod 44 is arranged in the guide groove 122; the electric telescopic rod 44 is extended and retracted so that the wedge surface A431 on the driving slider 43 and the wedge surface B414 on the movable limit member 41 act or separate; the electric telescopic rod 44 can provide power for the sliding of the driving slider 43, and the user does not need to manually control the driving slider 43; it is only necessary to control the electric telescopic rod 44, so a control panel 5 is embedded in the outer side of the seat cushion fixing frame 1, and a button for controlling the extension and retraction of the electric telescopic rod 44 is provided on the control panel 5; by pressing the button, the electric telescopic rod 44 can be controlled to extend or retract, thereby facilitating the control of the rotation or locking of the seat cushion rotating frame 2.

[0038] Furthermore, the locking teeth 411 on the movable limit member 41 can be single or multiple, but in order to ensure the locking effect, the technical solution of multiple locking teeth 411 is selected in this embodiment. Specifically, the movable limit member 41 has an arc surface at one end facing the outer gear ring 32, and the arc surface corresponds to the arc-shaped outer periphery of the outer gear ring 32; the arc surface is uniformly distributed along the circumferential direction with multiple locking teeth 411; compared with a single locking tooth 411, the multiple locking teeth 411 uniformly distributed along the circumferential direction are more stable when engaged with the teeth of the outer gear ring 32.

[0039] After riding, the locking tooth 411 is separated from the teeth of the outer gear ring 32 by the corresponding button on the control panel 5 again. At this time, the seat cushion rotating frame 2 can be rotated and reset again, so that the elderly can drive the scooter forward or backward.

[0040] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A rotating seat structure for a mobility scooter for the elderly, characterized in that: The invention comprises a seat cushion fixing frame (1) and a seat cushion rotating frame (2); the seat cushion rotating frame (2) is connected to the upper end of the seat cushion fixing frame (1) by rotation along a vertical axis; a rotation adjustment component is provided between the seat cushion fixing frame (1) and the seat cushion rotating frame (2); the rotation adjustment component comprises an outer gear ring (32) and a movable stopper (41); the outer peripheral surface of the outer gear ring (32) is provided with a circle of teeth; the movable stopper (41) is provided with locking teeth (411) for engaging with the teeth of the outer gear ring (32); the outer gear ring (32) is provided on the lower end surface of the seat cushion rotating frame (2), and the movable stopper (41) is provided on the seat cushion fixing frame (1); The movable limiting member (41) can move in a direction approaching or away from the outer gear ring (32), and the locking teeth (411) on the movable limiting member (41) are engaged with or separated from the teeth of the outer gear ring (32), so that the seat cushion rotating frame (2) remains locked or rotates freely on the seat cushion fixing frame (1).

2. The rotating seat structure of the elderly mobility scooter according to claim 1, characterized in that: The upper surface of the seat cushion fixing frame (1) is provided with an accommodating groove (11); a fixing ring (31) is provided at the bottom of the accommodating groove (11); the outer gear ring (32) is sleeved outside the fixing ring (31), so that the seat cushion rotating frame (2) is connected to the upper end of the seat cushion fixing frame (1) by rotating along the vertical axis.

3. The rotating seat structure of the elderly mobility scooter according to claim 2, characterized in that: A horizontal slide groove (12) communicating with the accommodating groove (11) is provided on the cushion fixing frame (1); a movable limiting member (41) is slidably mounted in the horizontal slide groove (12) to drive the locking teeth (411) on the movable limiting member (41) to move closer to or away from the teeth of the outer gear ring (32).

4. The rotating seat structure of the elderly mobility scooter according to claim 1, characterized in that: A cylindrical groove is provided at the tooth top of the locking tooth (411), and a roller (412) is rotatably installed in the cylindrical groove to guide the meshing of the locking tooth (411) and the tooth portion of the outer gear ring (32).

5. The rotating seat structure of the elderly mobility scooter according to claim 3, characterized in that: It also includes a driving assembly, which can act on the movable limiting member (41) to make the locking teeth (411) on the movable limiting member (41) engage with or disengage the teeth of the outer gear ring (32).

6. The rotating seat structure of the elderly mobility scooter according to claim 5, characterized in that: The driving assembly includes a driving slider (43); a guide groove (122) communicating with the horizontal slide groove (12) is provided on the seat cushion fixing frame (1), and the driving slider (43) is slidably installed in the guide groove (122); the driving slider (43) has a wedge surface A (431), and the movable stopper (41) is provided with a wedge surface B (414) matching the wedge surface A (431); the driving slider (43) slides in the guide groove (122) and causes the wedge surface A (431) to press the wedge surface B (414), thereby driving the movable stopper (41) to approach the outer gear ring (32), so that the locking teeth (411) on the movable stopper (41) are engaged with the teeth of the outer gear ring (32).

7. The rotating seat structure of the elderly mobility scooter according to claim 6, characterized in that: The driving assembly further comprises an elastic member acting on the movable limiting member (41). When the driving slider (43) slides in the guide groove (122) and causes the wedge surface A (431) to press the wedge surface B (414), the movable limiting member (41) approaches the outer gear ring (32). At this time, the elastic member deforms and stores elastic force. When the driving slider (43) slides in the guide groove (122) in the opposite direction and causes the wedge surface A (431) to separate from the wedge surface B (414), the elastic member releases the elastic force and acts on the movable limiting member (41) to move away from the outer gear ring (32), so that the locking teeth (411) on the movable limiting member (41) are separated from the teeth of the outer gear ring (32).

8. The rotating seat structure of the elderly mobility scooter according to claim 7, characterized in that: The movable limiting member (41) is symmetrically provided with limiting slide blocks (413) on both sides; the horizontal slide groove (12) is symmetrically provided with limiting slide grooves (121) on both sides; the limiting slide block (413) is slidably matched in the limiting slide groove (121); and the elastic member is a return spring (42) provided between the limiting slide block (413) and the corresponding side walls of the limiting slide groove (121).

9. The rotating seat structure of the elderly mobility scooter according to claim 7, characterized in that: The driving slider (43) is connected to an electric telescopic rod (44); the electric telescopic rod (44) is arranged in the guide groove (122); the electric telescopic rod (44) is extended and retracted to allow the wedge surface A (431) on the driving slider (43) to engage with or separate from the wedge surface B (414) on the movable stopper (41).

10. The rotating seat structure of the elderly mobility scooter according to claim 9, characterized in that: A control panel (5) is embedded in the outer side surface of the seat cushion fixing frame (1), and a button for controlling the extension and retraction of the electric telescopic rod (44) is provided on the control panel (5).

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