Seat cushion opening and closing structure of a displacement vehicle

Abstract

The utility model relates to a kind of seat cushion opening and closing structure of displacement vehicle, including frame, two seat cushions and several casters arranged left and right, several casters are installed in the bottom of frame and are used to drive frame to move, any seat cushion is equipped with inclined shaft connecting component between frame, the seat cushion is inclined rotation between use position and storage position by inclined shaft connecting component, and follow-up switching between unfolded state and vertical state in rotation process;The seat cushion of left and right two pieces in this displacement vehicle can be tilted and cut into the lower part of the hip of user from storage position when using, simple, fast, switching is convenient, can substantially reduce the height of user lifting hip, reduce the work burden of nursing staff.

Description

Technical Field

[0001] This utility model relates to the field of transfer vehicles, specifically a seat cushion opening and closing structure for a transfer vehicle. Background Technology

[0002] Current transfer vehicle structures such as Figure 1 As shown, the main components include a frame (a), with two seat cushion frames (b) arranged on the left and right sides of the frame. Each seat cushion frame is connected to a seat cushion (c) that can be flipped up and down. When the user needs to use the vehicle, the two seat cushions must first be flipped up to the storage position, so that the front of the transfer vehicle is open, making it easy for the user to step into the transfer vehicle. Then, the two seat cushions are flipped inward and downward to the unfolded position, so that the user's buttocks (d) can sit on the two seat cushions. However, with this connection method, when the seat cushions are flipped from the storage position to the unfolded position, or vice versa, space needs to be reserved inside the transfer vehicle for the seat cushions to flip. This causes caregivers to have to lift the user to a higher position, raising their buttocks from height H1 to height H2 in the attached diagram, thus increasing the workload of caregivers. Therefore, the applicant has improved and perfected the transfer vehicle to solve the above problems and provide it for consumers to choose from. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned existing problems and provide a simple and reasonable seat opening and closing structure for a transfer vehicle.

[0004] A seat opening and closing structure for a transfer vehicle includes a frame, two seat cushions arranged on the left and right, and several casters. The casters are installed at the bottom of the frame and are used to drive the frame to move. An inclined shaft connection assembly is provided between any seat cushion and the frame. The seat cushion tilts and rotates between the use position and the storage position through the inclined shaft connection assembly, and switches between the unfolded state and the vertical state as it rotates.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the frame includes at least two seat cushion frames arranged on the left and right, the seat cushions are connected to the seat cushion frames via a slanted shaft connecting assembly, the usage position is located between the two seat cushion frames, and the storage position is located on the upper side of either seat cushion frame.

[0006] As a further embodiment, the inclined shaft connection assembly includes a bushing and a rotating shaft rotatably connected within the bushing. The bushing is inclinedly connected to the end of the seat cushion frame, and the rotating shaft is inclinedly connected to one side of the seat cushion frame. The rotating shaft is provided with a rotation limiting structure that cooperates with the bushing.

[0007] As a further embodiment, the rotation limiting structure includes a limiting plate disposed inside the bushing. The limiting plate has an arc-shaped limiting groove corresponding to the rotation angle of the seat cushion. The end face of the rotating shaft has a threaded hole corresponding to the arc-shaped limiting groove. By passing a fastening bolt through the arc-shaped limiting groove and the threaded hole, the rotating shaft and the bushing are fitted and connected, and a limiting fit is formed between the fastening bolt and the arc-shaped limiting groove.

[0008] As a further embodiment, the rotation limiting structure includes a limiting swing block and an arc groove. The limiting swing block is fixed on the outer wall of the rotating shaft, and the arc groove is formed on the inner circumferential wall of the bushing. Through the cooperation of the limiting swing block and the arc groove, the rotating shaft is limited to rotate within the bushing.

[0009] As a further option, the port of the bushing corresponding to the head of the fastening bolt is detachably connected to an end cap; the end cap is interference-fitted onto the port, or the end cap is threaded or snap-fitted onto the port.

[0010] As a further embodiment, the seat cushion includes a seat plate and a sponge pad. The side of the seat plate is connected to a bearing seat. The rotating shaft is coaxially fixed on the bearing seat, and a reinforcing structure is provided between the bearing seat and the seat plate. The sponge pad is integrally wrapped around the outer periphery of the seat plate.

[0011] As a further embodiment, the frame also includes a base and two uprights arranged on the upper side of the base, the seat frame is connected to the front side of the uprights, and the handlebars are connected to the rear side of the uprights.

[0012] As a further option, a safety belt that can be detached or fastened is movably connected between the tops of the two pillars.

[0013] As a further embodiment, the base includes two bottom rods arranged on the left and right, a plurality of casters are mounted on the bottom rods, a foot pedal is connected between the two bottom rods, the foot pedal is also set between the two uprights, and the top surface of the foot pedal is provided with an anti-slip layer.

[0014] The beneficial effects of this utility model are as follows: This utility model discloses a seat cushion opening and closing structure for a transfer cart. When in use, the left and right seat cushions of this transfer cart can be tilted and cut under the user's buttocks from the storage position, or they can be tilted and turned out of the storage position immediately after the user's buttocks leave the seat cushion. The operation is simple, quick, and convenient to switch, which can significantly reduce the height at which the user raises their buttocks and reduce the workload of caregivers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the background technology structure of this utility model.

[0016] Figure 2This is a schematic diagram of one embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram showing the height at which the buttocks are raised in this utility model.

[0018] Figure 4 This is a schematic diagram of the seat cushion rotation process in this utility model.

[0019] Figure 5 This is an exploded structural diagram of the inclined shaft connection component in this utility model.

[0020] Figure 6 This is a schematic diagram of the arc groove structure of the bushing of this utility model.

[0021] Figure 7 This is a schematic diagram of the exploded structure of the seat cushion in this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See Figures 2 to 7 As shown, a seat opening and closing structure of a transfer vehicle includes a frame 1, two seat cushions 2 arranged on the left and right, and several casters 3. The casters 3 are installed at the bottom of the frame 1 and are used to drive the frame 1 to move. An inclined shaft connecting assembly 4 is provided between any seat cushion 2 and the frame 1. The seat cushion 2 is tilted and rotated between the use position P1 and the storage position P2 through the inclined shaft connecting assembly 4, and switches between the unfolded state and the vertical state as the rotation process proceeds.

[0024] The two seat cushions 2 in this shifting cart, when used... Figure 3 As shown, the user only needs to move the buttocks d from Figure 3 The height of H1 is raised to Figure 3 The H3 height allows it to be tilted and inserted under the user's buttocks from the storage position, or it can be tilted and rotated out of the storage position immediately after the user's buttocks leave the seat cushion 2. The operation is simple, quick, and easy to switch between positions. Compared to... Figure 1 The H2 height in the middle can significantly reduce the height that users need to lift their hips, thus reducing the workload of caregivers.

[0025] The frame 1 includes at least two seat cushion frames 10 arranged on the left and right. The seat cushion 2 is connected to the seat cushion frame 10 through a diagonal shaft connecting assembly 4. The use position is located between the two seat cushion frames 10, and the storage position is located on the upper side of either seat cushion frame 10. The structure uses the seat cushion frame 10 to support the seat cushion 2, allowing the two seat cushions 2 to tilt and rotate relative to each other. When rotating from the use position to the storage position, the seat cushion 2 is in a vertical position on the upper side of the seat cushion frame 10, which does not occupy the lateral space of the transfer vehicle and has a better storage effect. When rotating from the storage position to the use position, the seat cushion 2 folds from the vertical position to the unfolded position, without the need for additional angle adjustment, making the operation simpler.

[0026] In this embodiment, the inclined shaft connection assembly 4 includes a bushing 41 and a rotating shaft 42 rotatably connected within the bushing 41. The bushing 41 is inclinedly connected to the end of the seat cushion frame 10, and the rotating shaft 42 is inclinedly connected to one side of the seat cushion frame 10. The rotating shaft 42 is provided with a rotation limiting structure that cooperates with the bushing 41.

[0027] The rotation limiting structure includes a limiting plate 411 disposed inside the bushing 41. The limiting plate 411 has an arc-shaped limiting groove 412 corresponding to the rotation angle of the seat cushion 2. The end face of the rotating shaft 42 has a threaded hole 421 corresponding to the arc-shaped limiting groove 412. By passing the fastening bolt 43 through the arc-shaped limiting groove 412 and the threaded hole 421, the rotating shaft 42 and the bushing 41 are assembled and connected, and a limiting fit is formed between the fastening bolt 43 and the arc-shaped limiting groove 412. The rotation limiting structure includes a limiting swing block 422 and an arc groove 413. The limiting swing block 422 is fixed on the outer wall of the rotating shaft 42, and the arc groove 413 is formed on the inner circumferential wall of the bushing 41. Through the cooperation of the limiting swing block 422 and the arc groove 413, the rotating shaft 42 is limited to rotate within the bushing 41.

[0028] When installing the inclined shaft connection assembly 4 of the above structure, the seat cushion 2 is inserted into the bushing 41 using the rotating shaft 42. At this time, the threaded hole 421 corresponds to the arc-shaped limiting groove 412, and the limiting swing block 42 is inserted into the arc-shaped sliding groove 413. Then, the fastening bolt 43 is screwed into the threaded hole 421, and the head of the fastening bolt 43 is used to limit the engagement with the limiting plate 411, so that the bushing 41 and the rotating shaft 42 are fastened to each other. Moreover, during the rotation of the seat cushion 2, the fastening bolt 43 can only slide in the arc-shaped limiting groove 412, and the limiting swing block 422 can only slide in the arc-shaped sliding groove 413, thus controlling the rotation range between the use position and the storage position.

[0029] The end cap 44 is detachably connected to the port of the bushing 41 corresponding to the head of the fastening bolt 43. The end cap 44 covers the port of the bushing 41, so that the fastening bolt 43 and the arc-shaped limiting groove 412 will not be exposed, preventing the user's finger from being inserted into the arc-shaped limiting groove 412 and causing a pinching accident.

[0030] In this embodiment, the end cap 44 is interference-fitted onto the port. In other embodiments, the end cap 44 may also be threaded or snap-fitted onto the port.

[0031] The seat cushion 2 includes a seat plate 21 and a sponge pad 22. The side of the seat plate 21 is connected to a bearing 23. The rotating shaft 42 is coaxially fixed on the bearing 23, and a reinforcing structure is provided between the bearing 23 and the seat plate 21. The sponge pad 22 is integrally wrapped around the outer periphery of the seat plate 21. The elastic sponge pad 22 improves the comfort of the seat cushion.

[0032] Specifically, the seat cushion 21 includes a main seat cushion 211, with a side seat cushion 212 obliquely connected to the side of the main seat cushion 211. The bearing seat 23 is fixed to the outside of the side seat cushion 212, and a hip-limiting rocker 213 is folded upward on the rear side of the main seat cushion 211. The hip-limiting rocker 213 prevents the user's buttocks from sliding backward when sitting on the seat cushion 211. The aforementioned reinforcing structure mainly includes several metal reinforcing ribs 214. One end of each metal reinforcing rib 214 is welded to the side wall of the bearing seat 23, and the other end radiates outward from the bearing seat 23 and is welded to the bottom surface of the side seat cushion 212, the bottom surface of the main seat cushion 211, and partly the bottom surface of the hip-limiting rocker 213. This structure can improve the strength of the seat cushion 21, making it less prone to deformation and increasing its load-bearing capacity.

[0033] The frame 1 also includes a base 11 and two uprights 12 arranged on the upper side of the base 11. The seat frame 10 is connected to the front side of the uprights 12, and the handlebar frame 13 is connected to the rear side of the uprights 12. The handlebar frame 13 and the seat frame 10 are bent upwards or downwards respectively, and the two form an "S" shape. The bent seat frame 10 allows space to be reserved on the upper side for the seat 2 to be stored, while the bent handlebar frame 13 does not need to be bent, and the lines make the transfer vehicle more beautiful.

[0034] A seatbelt 14 that can be detached or fastened is movably connected between the top ends of the two uprights 12; after the user sits on the seat cushion 2, the seatbelt 14 is fastened to the user's back to prevent the user from falling backward.

[0035] The base 11 includes two base rods 111 arranged on the left and right. A plurality of casters 3 are mounted on the base rods 111. A foot pedal 112 is connected between the two base rods 111. The foot pedal 112 is also set between the two uprights 12, and the top surface of the foot pedal 112 is provided with an anti-slip layer 113. The foot pedal 112 provides a foothold for the user, and the structure of the anti-slip layer 113 prevents the user from slipping. The anti-slip layer 113 can be an integrally formed rib or a raised structure.

[0036] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A seat opening and closing structure for a transfer vehicle, comprising a frame (1), two seat cushions (2) arranged on the left and right, and a plurality of casters (3), wherein the plurality of casters (3) are installed at the bottom of the frame (1) and are used to drive the frame (1) to move, characterized in that: An inclined shaft connection assembly (4) is provided between any seat cushion (2) and the frame (1). The seat cushion (2) can tilt and rotate between the use position and the storage position through the inclined shaft connection assembly (4), and switch between the unfolded state and the vertical state as it rotates.

2. The seat opening and closing structure of a transfer vehicle according to claim 1, characterized in that: The frame (1) includes at least two seat cushion frames (10) arranged on the left and right. The seat cushion (2) is connected to the seat cushion frame (10) by a slanted shaft connecting assembly (4). The use position is set between the two seat cushion frames (10), and the storage position is set on the upper side of either seat cushion frame (10).

3. The seat opening and closing structure of a transfer vehicle according to claim 2, characterized in that: The inclined shaft connection assembly (4) includes a bushing (41) and a rotating shaft (42) rotatably connected inside the bushing (41). The bushing (41) is inclinedly connected to the end of the seat cushion frame (10), and the rotating shaft (42) is inclinedly connected to one side of the seat cushion frame (10). The rotating shaft (42) is provided with a rotation limiting structure that cooperates with the bushing (41).

4. The seat opening and closing structure of a transfer vehicle according to claim 3, characterized in that: The rotation limiting structure includes a limiting plate (411) inside the bushing (41). The limiting plate (411) has an arc-shaped limiting groove (412) corresponding to the rotation angle of the seat cushion (2). The end face of the rotating shaft (42) has a threaded hole (421) corresponding to the arc-shaped limiting groove (412). By passing the fastening bolt (43) through the arc-shaped limiting groove (412) and the threaded hole (421), the rotating shaft (42) and the bushing (41) are assembled and connected, and the fastening bolt (43) and the arc-shaped limiting groove (412) form a limiting fit.

5. The seat opening and closing structure of a transfer vehicle according to claim 3 or 4, characterized in that: The rotation limiting structure includes a limiting swing block (422) and an arc groove (413). The limiting swing block (422) is fixed on the outer side wall of the rotating shaft (42), and the arc groove (413) is opened on the inner peripheral wall of the bushing (41). Through the cooperation of the limiting swing block (422) and the arc groove (413), the rotating shaft (42) is limited to rotate within the bushing (41).

6. The seat opening and closing structure of a transfer vehicle according to claim 4, characterized in that: The bushing (41) is detachably connected to the port of the head of the fastening bolt (43) with an end cap (44); the end cap (44) is interference-fitted to the port, or the end cap (44) is threaded or snap-fitted to the port.

7. The seat opening and closing structure of a transfer vehicle according to claim 3, characterized in that: The seat cushion (2) includes a seat plate (21) and a sponge pad (22). The side of the seat plate (21) is connected to a bearing seat (23). The rotating shaft (42) is coaxially fixed on the bearing seat (23). A reinforcing structure is provided between the bearing seat (23) and the seat plate (21). The sponge pad (22) is integrally wrapped around the outer periphery of the seat plate (21).

8. The seat opening and closing structure of a transfer vehicle according to claim 2, characterized in that: The frame (1) also includes a base (11) and two uprights (12) arranged on the upper side of the base (11). The seat frame (10) is connected to the front side of the uprights (12), and the rear side of the uprights (12) is connected to the handlebar frame (13).

9. The seat opening and closing structure of a transfer vehicle according to claim 8, characterized in that: The top ends of the two columns (12) are movably connected by a safety belt (14) that can be unfastened or fastened.

10. The seat opening and closing structure of a transfer vehicle according to claim 8, characterized in that: The base (11) includes two bottom rods (111) arranged on the left and right. Several casters (3) are installed on the bottom rods (111). A foot pedal (112) is connected between the two bottom rods (111). The foot pedal (112) is also arranged between the two columns (12), and the top surface of the foot pedal (112) is provided with an anti-slip layer (113).

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