Shifting vehicle and cushion inserting method thereof

Abstract

The invention relates to a shifting vehicle and a cushion inserting method thereof.The shifting vehicle comprises a vehicle frame, two cushions arranged on the left side and the right side and a plurality of trundles, the trundles are installed at the bottom of the vehicle frame and used for driving the vehicle frame to move, and an inclined shaft connecting assembly is arranged between any cushion and the vehicle frame; the seat cushion obliquely rotates between a use position and a storage position through an oblique shaft connecting assembly and is switched between an unfolded state and a vertical state along with the rotating process, and a foot stop is further connected to the position, opposite to the rear portion of the seat cushion, of the frame; according to the shifting vehicle, the foot stoppers are arranged behind the seat cushions, when the position below the buttocks of a user needs to be cushioned into the seat cushions during use, the user only needs to press the knees against the foot stoppers, foot soles step on the foot pedals of the vehicle frame, then the knees serve as supporting points, the body inclines forwards, and then the left seat cushion and the right seat cushion can be obliquely inserted into the position below the buttocks of the user from the containing position; the operation is simple and fast, the switching is convenient, the height of lifting the buttocks of the user can be greatly reduced, and the workload of nursing personnel is relieved.

Description

Technical Field

[0001] The invention relates to the field of shifting vehicles, in particular to a shifting vehicle and a seat cushion insertion method thereof. Background Art

[0002] The current shift car structure is as follows Figure 1 As shown, it mainly includes a frame a, and two seat cushion frames b are arranged on the left and right of the frame, and each seat cushion frame is connected to a seat cushion c that can be flipped up and down. When the user needs to use it, the two seat cushions need to be flipped upward to the storage position first, so that the front end of the shift cart is open, which is convenient for the user to step into the shift cart, and 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, when the seat cushions of this connection method are flipped from the storage position to the unfolded position, or from the unfolded position to the storage position, it is necessary to reserve a flipping space for the seat cushion on the inner side of the shift cart. Therefore, the caregiver needs to lift the user to a higher position, so that the user's buttocks are lifted from the height H1 in the accompanying drawing to the height H2, thereby increasing the workload of the caregiver. Therefore, the applicant has improved and perfected the shift cart to solve the above problems for consumers to choose and use. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned existing problems and provide a simple and reasonable structure of a shifting vehicle and a seat cushion insertion method thereof.

[0004] A shift vehicle comprises a frame, two seat cushions arranged on the left and right, and a plurality of casters. The plurality of casters are mounted on the bottom of the frame and are used to drive the frame to move. An oblique axis connection assembly is provided between any seat cushion and the frame. The seat cushion is tilted and rotated between a use position and a storage position via the oblique axis connection assembly, and is switched between an expanded state and an upright state during the rotation process. A foot stop is also connected to the frame at the rear relative to the seat cushion.

[0005] The purpose of the present invention can also be solved by the following technical measures: As a more specific solution, the frame includes at least two seat cushion frames arranged on the left and right, the seat cushion is connected to the seat cushion frames through an oblique axis connection assembly, the use position is set between the two seat cushion frames, and the storage position is set on the upper side of any seat cushion frame.

[0006] As a further solution, the frame also includes a base and two columns arranged on the left and right sides of the base, and the foot guard is fixed between the two columns through the connecting structure on its left and right sides; a foot pedal is provided on the base, and the foot pedal is located below the foot guard, and the top surface of the foot pedal is provided with an anti-slip layer.

[0007] As a further solution, the foot guard is tilted and connected between the two pillars with the upper end closer to the rear and the lower end closer to the front.

[0008] As a further solution, the oblique axis connection assembly includes a sleeve and a rotating shaft rotatably connected in the sleeve, the sleeve is obliquely connected to the end of the cushion frame, the rotating shaft is obliquely connected to one side of the cushion frame, and the rotating shaft is provided with a rotation limiting structure that cooperates with the sleeve.

[0009] As a further solution, the rotation limiting structure includes a limiting plate arranged inside the sleeve, and an arc-shaped limiting groove corresponding to the rotation angle of the seat cushion is provided on the limiting plate. A threaded hole is provided on the end face of the rotating shaft corresponding to the arc-shaped limiting groove. The rotating shaft and the sleeve are assembled and connected by passing the fastening bolt through the arc-shaped limiting groove and the threaded hole, and a limiting fit is formed between the fastening bolt and the arc-shaped limiting groove.

[0010] As a further solution, the rotation limiting structure includes a limiting pendulum block and an arc groove. The limiting pendulum block is fixed on the outer wall of the rotating shaft, and the arc groove is opened on the inner wall of the sleeve. Through the cooperation between the limiting pendulum block and the arc groove, the rotating shaft is limited to rotate in the sleeve.

[0011] As a further solution, the foot guard includes a foot guard plate and a first sponge pad, the first sponge pad is integrally wrapped around the outer periphery of the foot guard plate, and the side of the first sponge pad facing the seat cushion is provided with two leg positioning arc surfaces arranged side by side.

[0012] As a further solution, the seat cushion includes a seat plate and a second sponge pad. The side of the seat plate is connected to an axle seat. The rotating shaft is coaxially fixed on the axle seat, and a reinforcement structure is provided between the axle seat and the seat plate. The second sponge pad is integrally wrapped around the outer periphery of the seat plate.

[0013] As a further solution, a safety belt that can be unlocked or fastened is movably connected between the top ends of the two columns.

[0014] A seat cushion insertion method for a lift vehicle according to an embodiment of the present invention comprises: The user steps by placing the sole of the foot on the foot pedal; The step of using the user's knee to act on the footrest to form a force fulcrum; The user leans forward to lift the hips; With the aid of the tilting and rotating seat cushion, the seat cushion is inserted from the rear end of the user's buttocks between the buttocks and the user's seated position so that the two seat cushions are placed under the user's buttocks; Steps to buckle the safety belt behind the user's waist.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a transfer vehicle and a method for inserting a seat cushion thereof. The transfer vehicle is provided with a foot stopper at the rear of the seat cushion. When the user needs to place the seat cushion under the buttocks during use, the user only needs to support the foot stopper with the knees and step the soles of the feet on the footboard of the vehicle frame. The knees are then used as fulcrums to lean the body forward. Thereafter, the left and right seat cushions can be tilted from the storage position and inserted under the user's buttocks. The operation is simple, fast, and easy to switch, and the height to which the user lifts the buttocks can be greatly reduced, thereby alleviating the workload of the caregiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the background technology structure of the present invention.

[0017] Figure 2 It is a structural diagram of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the knee supporting the foot guard in the present invention.

[0019] Figure 4 It is a schematic diagram of the buttocks lifting height in the present invention.

[0020] Figure 5 It is a structural schematic diagram of the seat cushion rotation process in the present invention.

[0021] Figure 6 It is a schematic diagram of the exploded structure of the oblique axis connection assembly in the present invention.

[0022] Figure 7 It is a schematic diagram of the arc groove structure of the shaft sleeve in the present invention.

[0023] Figure 8 It is a schematic diagram of the exploded structure of the seat cushion and the connecting structure in the present invention.

[0024] Figure 9 It is a schematic diagram of the exploded structure of the seat cushion in the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] See also Figures 2 to 9 As shown, a shift vehicle comprises a frame 1, two seat cushions 2 arranged on the left and right, and a plurality of casters 3. The plurality of casters 3 are mounted at the bottom of the frame 1 and are used to drive the frame 1 to move. The characteristic is that an oblique axis connection 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 oblique axis connection assembly 4, and is switched between the unfolded state and the vertical state during the rotation process. A foot stop 5 is also connected to the rear of the frame 1 relative to the seat cushion 2.

[0027] This transfer car is equipped with a footrest at the rear of the seat cushion. When the user needs to put the seat cushion under his buttocks, he only needs to Figure 3 As shown, place your knees against the footrests, place your feet on the pedals of the frame, and use your knees as a fulcrum to lean your body forward. Figure 4 As shown, the user only needs to move the hip d from Figure 4 The H1 height is raised to Figure 4 The height of H3 can be tilted from the storage position to cut under the user's buttocks, or it can be tilted out of the storage position immediately after the user's buttocks leave the seat cushion 2. The operation is simple, fast and easy to switch. Figure 1 The H2 height can significantly reduce the height at which the user lifts their hips, reducing the workload of caregivers.

[0028] The frame 1 includes at least two seat cushion frames 10 arranged on the left and right, and the seat cushion 2 is connected to the seat cushion frames 10 via an oblique axis connection 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 any seat cushion frame 10. This structure uses the seat cushion frame 10 to support the seat cushion 2, so that the two seat cushions 2 can be tilted and rotated relative to each other. When the seat cushions 2 are rotated from the use position to the storage position, the seat cushions 2 are in a vertical state on the upper side of the seat cushion frame 10, and will not occupy the horizontal space of the shift car, thereby improving the storage effect. When the seat cushions 2 are rotated from the storage position to the use position, the seat cushions 2 are folded from the vertical state to the unfolded state, without the need for additional angle adjustment, and the operation is simpler.

[0029] The frame 1 further includes a base 11 and two upright posts 12 disposed on the upper side of the base 11. The footrest 5 is fixed between the two upright posts 12 via connecting structures 6 on its left and right sides. In a common frame 1 structure, the upright posts 12 are the thickest and have high structural strength. When the footrest 5 is subjected to force, the upright posts 12 are not easily deformed. A foot pedal 112 is provided on the base 11, and the foot pedal 112 is located below the foot stop 5, and an anti-slip layer 113 is provided on the top surface of the foot pedal 112; the foot pedal 112 provides a place for the user's feet to rest, and the structure of the anti-slip layer 113 is added to prevent the user from slipping. The anti-slip layer 113 can be an integrally formed rib or raised structure.

[0030] The foot guard 5 is tilted and connected between the two columns 12 with the upper end closer to the rear and the lower end closer to the front. The foot guard 5 of this structure can better fit the user's knees and calves, increase the force-bearing area, and reduce the pressure on the knees.

[0031] In this embodiment, the oblique axis connection assembly 4 includes a sleeve 41 and a rotating shaft 42 rotatably connected in the sleeve 41. The sleeve 41 is obliquely connected to the end of the cushion frame 10, and the rotating shaft 42 is obliquely connected to one side of the cushion frame 10. The rotating shaft 42 is provided with a rotation limiting structure that cooperates with the sleeve 41.

[0032] The rotation limiting structure includes a limiting plate 411 arranged inside the sleeve 41, and an arc-shaped limiting groove 412 corresponding to the rotation angle of the seat cushion 2 is provided on the limiting plate 411. A threaded hole 421 is provided on the end face of the rotating shaft 42 corresponding to the arc-shaped limiting groove 412. The fastening bolt 43 is passed through the arc-shaped limiting groove 412 and the threaded hole 421 to realize the assembly connection between the rotating shaft 42 and the sleeve 41, and the fastening bolt 43 and the arc-shaped limiting groove 412 form a limiting fit.

[0033] The rotation limiting structure includes a limiting pendulum block 422 and an arc groove 413. The limiting pendulum block 422 is fixed on the outer wall of the rotating shaft 42, and the arc groove 413 is opened on the inner wall of the sleeve 41. Through the cooperation between the limiting pendulum block 422 and the arc groove 413, the rotating shaft 42 is limited and rotated in the sleeve 41.

[0034] When the oblique axis connection assembly 4 of the above structure is installed, the seat cushion 2 is inserted into the sleeve 41 using the rotating shaft 42. At this time, the threaded hole 421 corresponds to the arc-shaped limiting groove 412, and the limiting pendulum block 42 is stuck in the arc groove 413. Thereafter, the fastening bolt 43 is screwed into the threaded hole 421, and the head of the fastening bolt 43 is used to limit the position with the limiting plate 411, so that the sleeve 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 pendulum block 422 can only slide in the arc groove 413, thereby controlling the rotation amplitude between the use position and the storage position.

[0035] In addition, the port of the shaft sleeve 41 corresponding to the head of the fastening bolt 43 is detachably connected to an end cover 44; the end cover 44 is used to cover the port of the shaft sleeve 41 so that the fastening bolt 43 and the arc-shaped limiting groove 412 will not leak out, preventing the user's fingers from being inserted into the arc-shaped limiting groove 412 and causing a pinching accident.

[0036] In this embodiment, the end cap 44 is interference fit on the port, and in more embodiments, the end cap 44 may be threadedly connected or snap-fitted on the port.

[0037] The foot guard 5 includes a foot guard plate 51 and a first sponge pad 52. The first sponge pad 52 is integrally wrapped around the outer periphery of the foot guard plate 51, and the elastic sponge pad 52 is used to improve the comfort of the foot guard 5. The side of the sponge pad 52 facing the seat cushion 2 is provided with two leg positioning arc surfaces 521 arranged side by side. When the user's knees and calves are against the first sponge pad 52, the leg positioning arc surface 521 can stabilize the distance between the legs and prevent the knees from sliding when pressing against the foot guard 5.

[0038] The connecting structure 6 mainly includes a first pin sleeve 61, a second pin sleeve 62 and a pin 63. The first pin sleeve 61 is fixed to the inner side of the column 12, and the second pin sleeve 62 is fixed to the side of the foot guard 5. The second pin sleeve 62 is extended with a shaft sleeve 621 inserted into the first pin sleeve 61. The pin 63 is inserted into the second pin sleeve 62 and the first pin sleeve 61 in sequence, and its bottom end passes through the outside of the first pin sleeve 61 and is provided with a spring buckle 631. This structure uses the pin 63 to enable the foot block 5 to be quickly assembled and disassembled. During installation, the foot block 5 is first inserted into the first pin sleeve 6 through the shaft sleeve 621 to fix the foot block 5 to the column 12. Before the pin 63 is inserted into the second pin sleeve 62, there is no need to hold the foot block 5 by hand to stabilize its position. Finally, after the pin 63 is inserted into the second pin sleeve 62 and the first pin sleeve 61 in turn, its spring buckle 631 is buckled under the first pin sleeve 61, thereby fixing the foot block 5 between the two columns 12 and preventing it from being pulled out at will.

[0039] The seat cushion 2 includes a seat plate 21 and a second sponge pad 22. The side of the seat plate 21 is connected to an axle seat 23. The rotating shaft 42 is coaxially fixed on the axle seat 23, and a reinforcing structure is provided between the axle seat 23 and the seat plate 21. The second sponge pad 22 is integrally wrapped around the outer periphery of the seat plate 21; the elastic second sponge pad 22 is used to improve the comfort of the seat cushion.

[0040] Specifically, the seat cushion plate 21 includes a seat cushion main plate 211, the sides of which are obliquely connected to seat cushion side plates 212, the shaft seat 23 being fixed to the outer sides of the seat cushion side plates 212, and a buttocks limiting rocker plate 213 being folded upward on the rear side of the seat cushion main plate 211, which prevents the buttocks of the user from sliding backwards when sitting on the seat cushion 2; The above-mentioned reinforcement structure mainly includes a number of metal reinforcing ribs 214, one end of which is welded to the side wall of the shaft seat 23, and the other end is radiated outward from the shaft seat 23, and is welded to the bottom surface of the seat cushion side panel 212 and the bottom surface of the seat cushion main panel 211, and part of it also includes the bottom surface of the buttocks limit rocker 213. This structure can improve the strength of the seat cushion plate 21, make it less prone to deformation, and improve the load-bearing capacity.

[0041] A safety belt 14 that can be unlocked or fastened is movably connected between the top ends of the two upright posts 12 . After the user sits on the seat cushion 2 , the safety belt 14 is fastened to the user's back to prevent the user from falling backwards.

[0042] The seat cushion frame 10 is connected to the front side of the column 12, and the rear side of the column 12 is connected to the handle frame 13; the handle frame 13 and the seat cushion frame 10 of this structure are bent upward or downward respectively, and the two form an "S"-shaped structure front and back. The curved setting of the seat cushion frame 10 can reserve space on the upper side for storing the seat cushion 2, and the curved setting of the handle frame 13 does not need to be bent, and the lines make the shift vehicle more beautiful.

[0043] The base 11 includes two bottom bars 111 arranged on the left and right, the multiple casters 3 are installed on the front and rear ends of the bottom bars 111, and the foot pedal 112 is connected between the two bottom bars 111; the casters 3 on the shifting car are mainly universal casters, which can change direction at will when the shifting car moves, making the operation more flexible.

[0044] In this embodiment, in combination with the above structure, a method for inserting a seat cushion of a shift vehicle is provided, comprising: The user steps on the footrest 112; The step of using the user's knee to act on the footrest 5 to form a force fulcrum; The user leans forward (e.g. Figure 3 The direction of the M1 mark in the figure) will lead the hips to lift up (as shown in the figure Figure 3 Steps as shown in the direction of M2 mark in the figure; With the aid of the tilted and rotated seat cushion 2, the seat cushion 2 is inserted from the rear end of the user's buttocks into the sitting position where the buttocks and the user are separated (such as Figure 3 Step 2) between the two seat cushions 2 so that the two seat cushions 2 are placed under the user's buttocks; The step of buckling the safety belt 14 behind the user's waist.

[0045] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A shift vehicle, comprising a vehicle 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 mounted on the bottom of the vehicle frame (1) and used to drive the vehicle frame (1) to move, characterized in that: An oblique axis connection assembly (4) is provided between any seat cushion (2) and the vehicle frame (1); the seat cushion (2) is tilted and rotated between a use position and a storage position via the oblique axis connection assembly (4), and is switched between an unfolded state and a vertical state in accordance with the rotation process; and a footrest (5) is also connected to the vehicle frame (1) at the rear relative to the seat cushion (2).

2. A shifting vehicle according to claim 1, characterized in that: The vehicle frame (1) comprises at least two seat cushion frames (10) arranged on the left and right, the seat cushion (2) being connected to the seat cushion frames (10) via an oblique axis connection assembly (4), the use position being arranged between the two seat cushion frames (10), and the storage position being arranged on the upper side of any seat cushion frame (10).

3. The shifting vehicle according to claim 1, characterized in that: The frame (1) further comprises a base (11) and two upright posts (12) arranged on the upper side of the base (11) on the left and right sides, and the footrest (5) is fixed between the two upright posts (12) via connecting structures (6) on its left and right sides; a foot pedal (112) is provided on the base (11), the foot pedal (112) is located below the footrest (5), and a non-slip layer (113) is provided on the top surface of the foot pedal (112).

4. The shifting vehicle according to claim 2, characterized in that: The oblique axis connection assembly (4) comprises a shaft sleeve (41) and a rotating shaft (42) rotatably connected in the shaft sleeve (41); the shaft sleeve (41) is obliquely connected to the end of the seat cushion frame (10); the rotating shaft (42) is obliquely connected to one side of the seat cushion frame (10); and the rotating shaft (42) is provided with a rotation limiting structure that cooperates with the shaft sleeve (41).

5. The shifting vehicle according to claim 4, characterized in that: The rotation limiting structure comprises a limiting plate (411) arranged inside the shaft sleeve (41), the limiting plate (411) is provided with an arc-shaped limiting slot (412) corresponding to the rotation angle of the seat cushion (2), and the end surface of the rotating shaft (42) is provided with a threaded hole (421) corresponding to the arc-shaped limiting slot (412). The rotating shaft (42) and the shaft sleeve (41) are assembled and connected by a fastening bolt (43) passing through the arc-shaped limiting slot (412) and the threaded hole (421), and a limiting fit is formed between the fastening bolt (43) and the arc-shaped limiting slot (412).

6. A shifting vehicle according to claim 4 or 5, characterized in that: The rotation limiting structure comprises a limiting pendulum block (422) and an arc chute (413), wherein the limiting pendulum block (422) is fixed on the outer wall of the rotating shaft (42), and the arc chute (413) is provided on the inner wall of the shaft sleeve (41). The limiting pendulum block (422) cooperates with the arc chute (413), so that the rotating shaft (42) is limited in rotation within the shaft sleeve (41).

7. The shifting vehicle according to claim 1, characterized in that: The foot baffle (5) comprises a foot baffle plate (51) and a first sponge pad (52), wherein the first sponge pad (52) is integrally wrapped around the outer periphery of the foot baffle plate (51), and a side of the first sponge pad (52) facing the seat cushion (2) is provided with two leg positioning arc surfaces (521) arranged side by side.

8. The shifting vehicle according to claim 4, characterized in that: The seat cushion (2) comprises a seat plate (21) and a second sponge pad (22); the side of the seat plate (21) is connected to an axle seat (23); the rotating shaft (42) is coaxially fixed on the axle seat (23); a reinforcing structure is provided between the axle seat (23) and the seat plate (21); and the second sponge pad (22) is integrally wrapped around the outer periphery of the seat plate (21).

9. The shifting vehicle according to claim 3, characterized in that: A safety belt (14) that can be unlocked or fastened is movably connected between the top ends of the two upright posts (12).

10. A method for inserting a seat cushion into a shift vehicle, characterized in that: have: The user steps on the footrest (112); The step of using the user's knee to act on the foot block (5) to form a force fulcrum; The user leans forward to lift the hips; The seat cushion (2) is inserted from the rear end of the user's buttocks between the buttocks and the user's seated position by means of the tilted and rotated seat cushion (2), so that the two seat cushions (2) are placed under the user's buttocks; Steps to buckle the safety belt (14) behind the user's waist.

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