Simple shifting vehicle and split type cushion inserting method thereof

Abstract

The invention relates to a simple shifting vehicle and a cushion split type inserting method thereof.The simple shifting vehicle comprises a vehicle frame, a plurality of universal trundles used for driving the shifting vehicle to move are arranged at the bottom of the vehicle frame, the vehicle frame comprises a bottom frame and a single lifting stand column connected to the position of a middle shaft of the bottom frame, and the movable end of the lifting stand column is connected with a supporting handrail; the supporting handrail is connected with a single-plate cushion arranged below the supporting handrail in a hanging mode through a hanging connecting piece, a lock catch structure is arranged on the hanging connecting piece, and the cushion is detachably connected with the supporting handrail through the lock catch structure. According to the shifting vehicle, the supporting armrests and the seat cushion are supported by the single lifting stand column, so that a corresponding mounting frame structure does not need to be additionally arranged on the vehicle frame, the complexity of the vehicle frame structure is reduced, and the seat cushion can be integrally detached from the shifting vehicle and can be conveniently cushioned below the buttocks of a user.

Description

Technical Field

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

[0002] The current shifting car structure is shown in a shifting car of prior art 1, application number: 202322235169.2, which mainly includes a base assembly, two columns arranged on the base assembly, and a seat assembly that is raised and lowered by the two columns. The two columns are vertically arranged at the two ends of the top of the support beam, and a lifting member is provided on the support beam between the two columns to drive the seat assembly to rise and fall. When the shifting car is in use, the user's legs need to be respectively clamped in the distance between the columns and the lifting member. This structure limits the lateral movement space of the user's legs, affecting the riding comfort of the shifting car. In addition, a seat frame and an armrest frame need to be additionally connected to the two columns for installing the seat and armrest pads, which makes the frame structure of the shifting car more complicated and larger in size, which affects the storage effect when folding is required.

[0003] As another example, in prior art 2, a safety locking type shifting cart with application number: 202322221631.3 is shown, which mainly includes an H-shaped frame, a base arranged at the bottom end of the frame, and a left seat and a right seat rotatably arranged on both sides of the top end of the frame, wherein the left seat and the right seat are combined into a bearing structure for carrying the patient. As shown in the above-mentioned prior art, the left seat and the right seat of the existing shifting cart cannot be disassembled, and during use, the left seat and the right seat need to be opened and closed left and right and inserted under the user's buttocks, which is relatively limited in operation. Moreover, during the placement process, the user's body movement range is large, which is not suitable for users with wounds on the body. In addition, the entire shifting cart must be blocked in front of the user when accommodating the user, and the caregiver can only operate from the side. The entire placement process is inconvenient. Therefore, the applicant improves and perfects the shifting cart to solve the problems existing in the above-mentioned prior art for consumers to choose and use. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned existing problems and provide a simple and reasonable structure of a simple shifting vehicle and a split seat cushion insertion method thereof.

[0005] A simple shifting vehicle comprises a frame, wherein a plurality of universal casters are provided at the bottom of the frame for driving the shifting vehicle to move, the frame comprises a base frame and a single lifting column connected to the central axis of the base frame, the movable end of the lifting column is connected to a supporting armrest, and the supporting armrest is vertically connected to a single-plate seat cushion placed thereunder through a hanging connector, and a locking structure is provided on the hanging connector, and the seat cushion is detachably connected to the supporting armrest through the locking structure.

[0006] The purpose of the present invention can also be solved by the following technical measures: As a more specific solution, the hanging connection includes several flexible belts arranged at intervals, one end of the flexible belt is fixedly connected to the left or right edge of the seat cushion, and the other end of the flexible belt is connected to the locking structure, and the locking structure is hung and connected to the support armrest.

[0007] As a further solution, the locking structure includes a buckle and a lock, one of the buckle and the lock is connected to the other end of the flexible belt, and the other of the buckle and the lock is connected to the support armrest. Through the buckle and the lock, the seat cushion and the hanging connector are detachably installed as a whole relative to the support armrest.

[0008] As a further solution, the chassis includes a base and two supporting legs; both supporting legs include a rear supporting section and a front supporting section, the rear supporting section is connected to the outside of the base, the front supporting section is rotatably connected to the front end of the rear supporting section and can be folded inwardly on the front side of the base, and the universal casters are connected to the outer ends of the rear supporting section and the front supporting section.

[0009] As a further solution, the front side of the movable end of the lifting column is fixedly connected to an armrest support structure, and the support armrest is placed on the upper side of the armrest support structure when in the expanded position, so that the support armrest extends horizontally in front of the lifting column.

[0010] As a further solution, the support armrest has a "U"-shaped structure, which includes a middle section and two armrest sections, the two armrest sections are symmetrically connected to the two ends of the middle section, the seat cushion is connected to the two armrest sections, and the middle section is rotatably connected to the rear side of the movable end of the lifting column through a pipe code, so that the two armrest sections can be flipped back and forth between the deployed position and the stored position.

[0011] As a further solution, the rear ends of the two supporting legs are respectively rotatably connected to the outside of the base, and the rear side of the base is provided with an external support synchronization mechanism, which is transmission-connected to the rear ends of the two supporting legs. The two supporting legs are driven by the external support synchronization mechanism to switch between the external support position and the retracted position.

[0012] As a further solution, the armrest support structure includes a supporting cross tube, and the two ends of the supporting cross bar are provided with upward-opening pipe clamps. The middle of the supporting cross tube is fixedly connected to the lifting column through a connecting block, and the two handholds of the supporting armrest are positioned and abutted against the pipe clamps.

[0013] As a further solution, the length of the flexible belt on each side gradually decreases as it moves away from the lifting column, and the seat cushion is obliquely connected to the bottom of the support armrest through flexible belts of different lengths; The two flexible belts connected to the front end of the seat cushion are in a cross structure, wherein the other end of the left flexible belt is connected to the locking structure on the right, and the other end of the right flexible belt is connected to the locking structure on the left.

[0014] As a further solution, the seat cushion is made of a single hard plate in one piece; and a defecation opening is opened in the middle of the plate.

[0015] A split-type seat cushion insertion method for a shift vehicle comprises: Steps for unlocking the locking mechanism and separating the seat cushion from the support armrest; The step of placing a separate seat cushion on the sitting position left by the user and transferring the user until the buttocks are seated on the seat cushion, or directly inserting the separate seat cushion between the buttocks of the user and the sitting position left by the user; Adjust the position of the transfer cart so that the support armrest is moved above the seat cushion attachment; Re-engaging the locking structure to reconnect the seat cushion to the support armrest in a hanging manner; The steps of activating the lifting column to lift the user out of the sitting position and moving the user to a desired position with the help of a movable transfer vehicle.

[0016] The beneficial effects of the present invention are as follows: The present invention provides a simple transfer vehicle and a split-type seat cushion insertion method thereof. The transfer vehicle relies solely on a single lifting column to support the armrest and the seat cushion, so that the vehicle frame does not need to be additionally provided with a corresponding mounting frame structure, thereby reducing the complexity of the vehicle frame structure and making the vehicle frame structure more concise. Moreover, the height of the armrest and the seat cushion can be adjusted at will by lifting the lifting column, without having to separate the two parts for operation, and is easier to use. After the user sits on the vehicle, the lifting column is placed between the two legs, and the outer sides of the legs have more lateral activity space, which can improve the user's riding comfort and reduce the constraints on the legs.

[0017] This transfer cart uses the unlocking of the lock structure to allow the seat cushion to be completely removed from the transfer cart, which is then conveniently placed under the user's buttocks. The placement process can reduce the user's body movement range. The transfer cart can then be moved independently, and the seat cushion is buckled and connected to the support armrest through the lock structure. Finally, the user is lifted up. The entire operation is flexible and convenient, reducing interference with the user and ensuring that the user does not feel the shift as much as possible.

[0018] The supporting legs and supporting armrests in this shift cart can be folded and stored, further reducing the volume when stored. There is no longer any scattered components when stored, and the switch between the storage state and the use state can be quickly realized, eliminating the need to install the supporting legs and / or supporting armrests each time they are reused, thereby improving the use efficiency and making the operation simple and convenient. In addition, after the shift cart is folded, the four casters are still in contact with the ground, maintaining relatively parallel support points, so that the shift cart can remain in a standing state when folded, reducing the space occupied when stored.

[0019] During the use of this transfer cart, the supporting legs can be driven by the external support synchronization mechanism to expand outward in an "eight" shape, thereby increasing the support area to cope with the tilting of the transfer cart due to the shift of center of gravity caused by the user's body tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the seat cushion disassembly structure in the present invention.

[0022] Figure 3 It is a schematic diagram of the side structure of the shifting vehicle in the present invention.

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0024] Figure 5 It is a schematic diagram of the side cross-section structure of the shifting vehicle in the present invention.

[0025] Figure 6 It is a schematic diagram of the exploded structure of the support armrest and seat cushion in the present invention.

[0026] Figure 7 It is a schematic diagram of the folding structure of the support armrest and the support footrest in the present invention.

[0027] Figure 8 It is a schematic diagram of the decomposition structure of the active locking structure in the present invention.

[0028] Figure 9 This is a structural diagram of the supporting legs in the retracted position according to the present invention.

[0029] Figure 10 This is a structural diagram of the supporting stand in the external support position in the present invention.

[0030] Figure 11 It is a schematic diagram of the exploded structure of the support frame and the base in the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] See also Figures 1 to 11 As shown, a simple shifting vehicle comprises a frame 1, and a plurality of universal casters 10 are provided at the bottom of the frame 1 for driving the shifting vehicle to move. The frame 1 comprises a base frame 9 and a single lifting column 4 connected to the central axis position of the base frame 9. The movable end of the lifting column 4 is connected to a supporting armrest 5, and the supporting armrest 5 is vertically connected to a single-board seat cushion 6 placed thereunder through a hanging connector 7. A locking structure 8 is provided on the hanging connector 7, and the seat cushion 6 is detachably connected to the supporting armrest 5 through the locking structure 8.

[0033] In the above structure, the support armrest 5 and the seat cushion 6 are supported by a single lifting column 4, so that the frame 1 does not need to add a corresponding installation frame structure, reducing the complexity of the frame 1 structure and making the frame 1 structure more simple; in addition, the height of the armrest and the seat cushion 6 can be adjusted at will by lifting the lifting column 4, without the need to separate the two parts for operation, which is easier to use; and after the user is seated, the lifting column 4 is placed between the two legs, and the outer sides of the legs have more lateral activity space, which can improve the user's riding comfort and reduce the constraints on the legs.

[0034] In addition, the shifting car utilizes the unlocking of the locking structure 8 to enable the seat cushion 6 to be completely disassembled from the shifting car, so that the cushion can be conveniently placed under the user's buttocks. The placement process can reduce the user's body movement range. Thereafter, the shifting car can be moved independently, and the seat cushion 6 is buckled and connected to the support armrest 5 through the locking structure 8, and finally the user is lifted up. The entire operation is flexible and convenient, reducing interference with the user, and achieving user-unaware shifting as much as possible.

[0035] The hanging connector 7 includes several flexible belts 71 arranged at intervals, one end of the flexible belt 71 is fixedly connected to the left or right side of the seat cushion 6, and the other end of the flexible belt 71 is connected to the locking structure 8, and the locking structure 8 is hung and connected to the support armrest 5.

[0036] When the supporting armrest 5 can be folded, the seat cushion 6 is connected to the supporting armrest 5 by a flexible belt 71, which can save space when folded. In addition, the flexible connection between the seat cushion 6 and the supporting armrest 5 can also play a certain shock-absorbing and buffering role during the use of the shift cart, thereby improving the user's riding comfort.

[0037] The locking structure 8 includes a buckle 81 and a lock 82, one of the buckle 81 and the lock 82 is connected to the other end of the flexible belt 71, and the other of the buckle 81 and the lock 82 is connected to the support armrest 5. Through the buckling cooperation between the buckle 81 and the lock 82, the seat cushion 6 and the hanging connector 7 are detachably installed as a whole relative to the support armrest 5; this structure enables the seat cushion 6 to be disassembled as a whole, which is convenient for placing the cushion under the user's buttocks, and the buckle 81 and the lock 82 are easy to operate and can be quickly unlocked or fastened.

[0038] The length of the flexible belt 71 on each side gradually decreases from the rear end of the seat cushion 6 to the front end of the seat cushion 6. The seat cushion 6 is obliquely connected to the bottom of the support armrest 5 through the flexible belts 71 of different lengths. When the user rides the transfer vehicle, the user will face the rear end of the seat cushion 6. Therefore, the inclined seat cushion 6 can prevent the user's buttocks from sliding backwards, which plays a role in the stability of the ride.

[0039] The two flexible belts 71 connected to the front end of the seat cushion 6 are in a cross structure (attached Figure 2 The other end of the left flexible belt 71 is connected to the locking structure 8 on the right, and the other end of the right flexible belt 71 is connected to the locking structure 8 on the left; the two flexible belts 71 are cross-connected so that the two flexible belts 7 can form a backrest, which can provide certain support for the user's back and prevent the user from falling backwards.

[0040] The support armrest 5 is connected to a suspension belt 84 via a mounting shaft 83. A hanging ring 85 is provided on one side of the buckle 81 or the lock 82. The buckle 81 or the lock 82 is movably suspended on the support armrest 5 by the cooperation of the hanging ring 85 and the suspension belt 83. The buckle 81 or the lock 82 is connected to the support armrest 5 by the suspension belt 83. When the flexible belt 71 swings as the center of gravity of the seat cushion 6 shifts, the lock structure 8 can also swing with the flexible belt 71, which can avoid the buckle 81 or the lock 82 being fixed on one side, resulting in an increase in stress between them, and can improve the service life of the lock structure 8.

[0041] The seat cushion 6 is made of a hard single piece of board; and a defecation opening 601 is opened in the middle of the board; the defecation opening 601 allows the user to complete defecation while sitting on the shift cart, reducing the user's transfer process and improving the convenience of the shift cart.

[0042] The front side of the movable end of the lifting column 4 is fixedly connected to the armrest support structure 11 . When the support armrest 5 is in the deployed position, it abuts against the upper side of the armrest support structure 11 , so that the support armrest 5 extends laterally in front of the lifting column 4 .

[0043] Specifically, the armrest support structure 11 includes a support cross tube 111, and the two ends of the support cross bar are provided with upwardly open pipe clamps 112. The middle of the support cross tube 111 is fixedly connected to the lifting column 4 through a connecting block 113. The connecting block 113 is provided with an arc that fits the surface of the lifting column 4, and the connection effect is more secure. The two support members 52 of the support armrest 5 are positioned and abutted against the pipe clamp 112 (which can be a clearance fit or an elastic interference fit).

[0044] The support armrest 5 can be fixed on the armrest support structure 11, and the handrail portion 52 can be positioned without shaking left and right, thereby maintaining the stability of the support armrest 5 and preventing it from deforming when bearing weight.

[0045] The supporting transverse tube 111 is connected to two handles 114 arranged on the left and right. The two handles 114 are mainly used for the convenience of users. When the user needs to stand up or lift the hips, the user can hold the handles 114 to help the user use the arms to support the body. The handles 114 are also covered with anti-slip grips 115, which also have an anti-slip effect.

[0046] The support armrest 5 has a "U"-shaped structure, which includes a middle section 51 and two armrest sections 52. The two armrest sections 52 are symmetrically connected to the two ends of the middle section 51. The seat cushion 6 is connected to the two armrest sections 52. The middle section 51 is rotatably connected to the rear side of the movable end of the lifting column 4 through a pipe code 53, and the two armrest sections 52 are flipped back and forth between the deployed position and the stored position.

[0047] This structure enables the support armrest 5 to achieve a folding effect. When stored, it can be flipped backward toward the rear side of the lifting column 4, which can reduce the horizontal space occupied. When unfolded for use, the armrest support structure 11 can prop up the support armrest 5, so that the support armrest 5 remains in a horizontal state relative to the lifting column 4; and the support armrest 5 has sufficient strength to support the user. The support armrest 5 with a "U"-shaped structure is simple as a whole and occupies less space when folded; the armrest portion 52 can support the seat cushion 6 while maintaining the armrest function.

[0048] The support armrest 5 is sleeved with a plurality of elastic armrest covers 54; the plurality of elastic armrest covers 54 are mainly sleeved on the support armrest 5 except for the connection position of the pipe code 53, the connection position of the pipe clamp 112 and the connection position of the lock 82. The elastic armrest cover 54 on the middle section 51 plays an anti-slip role when the caregiver pushes the shift cart, and the elastic armrest cover 54 on the handrail portion 52 can isolate the cold metal material when the user's arm is placed on the support armrest 5, and the soft elastic armrest cover 54 improves the comfort of the armrest.

[0049] The lifting column 4 includes a fixed column 41, a movable column 42 and a push rod body 43 with a motor. The fixed column 41 is vertically fixed on the base frame 9, the movable column 42 is sleeved outside the fixed column 41, the support handrail 5 is connected to the top of the movable column 42, and the push rod body 43 is vertically arranged in the movable column 42, and its telescopic push rod is transmission-connected to the bottom end of the fixed column 41.

[0050] The base frame 9 includes a base 2 and two supporting legs 3; the two supporting legs 3 each include a rear supporting section 31 and a front supporting section 32, the rear supporting section 31 is connected to the outer side of the base 2, the front supporting section 32 is rotatably connected to the front end of the rear supporting section 31 and can be folded inwardly on the front side of the base 2, and the universal caster 10 is connected to the outer ends of the rear supporting section 31 and the front supporting section 32.

[0051] The support legs 3 and support armrests 5 in this type of shifting vehicle can be folded and stored (such as Figure 2 As shown), the volume during storage is further reduced, the components are no longer scattered during storage, and the switching between the storage state and the use state can be quickly realized, eliminating the need to install the support leg 3 and / or the support armrest 5 each time it is reused, thereby improving the use efficiency and making the operation simple and convenient.

[0052] Another point is that after the shift cart is folded, the four casters 6 are still in contact with the ground, maintaining relatively parallel support points, so that the shift cart can still remain in a standing state when folded, reducing the space occupied when stored.

[0053] The front end of the rear support section 31 is provided with a pipe connector 311, and the rear end of the front support section 32 is provided with a second pipe fork 321. The second pipe fork 321 is rotatably connected to the pipe connector 311 via a hinge shaft 33, so that the two front support sections 32 are folded forward and backward on the front side of the base 2. In this embodiment, the front end of the rear support section 31 is arranged front and rear relative to the base, and at the same time, the two front support sections 32 have different lengths corresponding to the pipe connectors 311 at different positions, so that after the two front support sections 32 are folded inward 90° at the same time, the two front support sections 32 can be folded front and back on the front side of the base 2. After folding, they remain in the same horizontal plane without interfering with each other, so that the folded state remains compact and space-saving.

[0054] In addition, the rear support section 31 includes an outer tube and an inner tube, the outer tube is sleeved on the outside of the inner tube, and one end of the inner tube at least partially extends out of the outside of the outer tube, and the protruding part forms a tube connector 311. Therefore, when the front support section 32 is unfolded relative to the rear support section 31, the front support section 32 can maintain the tube diameter with the outer tube, so that the support leg 3 has better consistency.

[0055] A movable locking structure is provided on the upper portion of the second tube fork 321. When the front support section 32 is unfolded relative to the rear support section 31, the movable locking structure and the tube connector 311 are locked and cooperated with each other. When the front support section 32 is unfolded, the front support section 32 maintains its relative position with the rear support section 31 through the movable locking structure.

[0056] Specifically, the movable locking structure includes a hexagonal head 34, a male screw sleeve 341 is provided at the bottom of the hexagonal head 34, a lower clutch portion 342 is provided at the top of the hexagonal head 34, and a threaded hole 322 connected to the male screw sleeve 341 is provided at the upper portion of the second tube fork 321; The manual knob 35 is further provided with a latch 351 inserted into the hexagonal head 34 and the external threaded sleeve 341, and an upper clutch portion 352 engaged with the lower clutch portion 342. The pipe connector 311 defines a pin hole engaged with the latch 351. The pin holes include a first pin hole 312 and a second pin hole 313 corresponding to the unfolded and folded positions of the front support section 32. During installation, the hexagonal head 34 is screwed into the threaded hole 322 through the external threaded sleeve 341, thereby being fixed to the second tube fork 321. The screwing-in process of the hexagonal head 34 can be operated with a tool, which improves the tightening effect. Alternatively, after the manual knob 35 is coupled with the lower clutch portion 342 through the upper clutch portion 352, the manual knob 35 can be used to synchronously drive the hexagonal head 34 to rotate, so that the external threaded sleeve 341 can be screwed into the threaded hole 322. When the front support section 32 is unfolded, the user can use the manual knob 35 to pull up the pin 351, and after the pin 351 is aligned with the first pin hole 312, the manual knob 35 can be controlled to insert the pin 351 into the first pin hole 312 to complete the unfolding and locking. Conversely, when the front support section 32 is folded, the manual knob 35 is used to pull up the pin 351 and leave the first pin hole 312, thereby releasing the lock, and then fold the front support section 32 inward until the pin 351 is aligned with the second pin hole 313, and then the manual knob 35 is controlled to insert the pin 351 into the second pin hole 313 to complete the folding and locking.

[0057] The rear ends of the two supporting legs 3 are respectively rotatably connected to the outside of the base 2. The rear side of the base 2 is provided with an external support synchronization mechanism 12. The external support synchronization mechanism 12 is transmission-connected to the rear ends of the two supporting legs 3. The two supporting legs 3 are driven by the external support synchronization mechanism 12 to switch between the external support position and the retracted position.

[0058] During use, the support legs 3 of the structure can be stretched outward in an "eight" shape under the drive of the external support synchronization mechanism 12, thereby increasing the support area, which is used to cope with the tilting of the user's body (users with hemiplegia due to stroke) and the tilting of the transfer vehicle due to the shifting of the center of gravity.

[0059] The external support synchronization mechanism 12 mainly includes a rotating plate 121, a left push rod 122 and a right push rod 123. The rotating plate 121 is rotatably connected to the central axis position on the rear side of the base 2. One end of the left push rod 122 and the right push rod 123 are respectively hinged to the left or right end of the rotating plate 121 through a universal joint structure, and the other ends of the left push rod 122 and the right push rod 123 are respectively hinged to the inner side of the rear end of the two supporting legs 3 through a universal joint structure; the universal joint structure at both ends enables the left push rod 122 or the right push rod 123 to move left and right, up and down, and also move forward and backward.

[0060] A first power arm 1211 extends from one end of the rotating plate 121 along its length direction, and an inward-retracting foot pedal 124 is installed at the arm end of the first power arm 1211. A second power arm 1212 extends from the other end of the rotating plate 121 along its angle direction, and an outward-supporting foot pedal 125 is installed at the arm end of the second power arm 1212.

[0061] In combination with the above structure, the method of using the frame stabilizing structure is: in the initial state, such as Figure 9 As shown, the rotating plate 121 is placed horizontally, the left push rod 122 and the right push rod 123 are in the outward position, and the two supporting legs 3 are in the inward position and are arranged parallel to each other; When the caregiver needs to open the support leg 3, the caregiver steps on the outer support foot pedal 125, thereby driving the rotating plate 121 to rotate to the vertical state, and then uses the left push rod 122 and the right push rod 123 to pull the rear end of the support leg 3 inward, so that the support leg 3 is opened to the outer support position (such as Figure 10 As shown), on the contrary, when the caregiver needs to retract the support leg 3, he only needs to step on the inward foot pedal 124 to make the above structure move in the opposite direction, thereby returning to the initial state. The rear side of the base 2 is provided with a rotation limiting part corresponding to the first power arm 1211 and the second power arm 1212, and the first power arm 1211 and the second power arm 1212 are provided with a limiting matching part that matches the corresponding rotation limiting part; the rotation limiting part and the limiting matching part mainly limit the first power arm 1211 and the second power arm 1212, thereby controlling the rotation amplitude of the rotating plate 121.

[0062] The rotation limiting part includes a limiting shaft 1261 fixed on the base and an elastic buffer sleeve 1262 sleeved on the outer end of the limiting shaft 1261, and the limiting matching part includes a positioning recess 1263 opened on the bottom edge of the first power arm 1211 and the second power arm 1212, and the positioning recess 1263 is clamped on the elastic buffer sleeve 1262; the elastic buffer sleeve 1262 can buffer the impact force of the first power arm 1211 or the second power arm 1212 on the limiting shaft 1261, can reduce the collision sound generated when touching, and can also increase the service life of the limiting shaft 1261.

[0063] A first tube fork 21 is provided on the outer side of the base 2, and a C-shaped support clamp 22 is fixedly connected to the inside of the first tube fork 21. The supporting leg 3 is rotatably connected to the C-shaped support clamp 22 via a rotating shaft 23; the C-shaped support clamp 22 can increase the strength of the first tube fork 21 and prevent the first tube fork 21 from deformation.

[0064] The C-shaped support clamp 22 includes a support horizontal plate 221 padded on the upper and lower surfaces of the support leg 3 and a vertical support plate 222 connected between the two support horizontal plates 221 .

[0065] The maximum opening angle θ of the support leg 3 between the outward support position and the inward support position is 15°-25°; the opening angle of the support leg 3 in this reasonable range can ensure that the support area is increased while maintaining the front and rear support stability.

[0066] A split-type seat cushion insertion method for a shift vehicle comprises: The step of unlocking the locking structure 8 and disassembling the seat cushion 2 from the support armrest 5; The step of placing the separate seat cushion 2 on the sitting position left by the user and transferring the user until the buttocks are seated on the seat cushion 2, or directly inserting the separate seat cushion 2 between the buttocks of the user and the sitting position left by the user; Adjust the position of the shift car so that the support armrest 5 is moved above the seat cushion 2; Re-fastening the locking structure 8 to establish a hanging connection between the seat cushion 2 and the support armrest 5; The lifting column 4 is activated to lift the user out of the sitting position, and the user is moved to a desired position by means of a movable shifting vehicle.

[0067] 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 simple shifting vehicle, comprising a vehicle frame (1), wherein the bottom of the vehicle frame (1) is provided with a plurality of universal casters (10) for driving the shifting vehicle to move, characterized in that: The frame (1) comprises a base frame (9) and a single lifting column (4) connected to the central axis of the base frame (9); the movable end of the lifting column (4) is connected to a support armrest (5); the support armrest (5) is vertically connected to a single-plate seat cushion (6) placed below the support armrest via a hanging connector (7); a locking structure (8) is provided on the hanging connector (7); and the seat cushion (6) is detachably connected to the support armrest (5) via the locking structure (8).

2. A simple shifting vehicle according to claim 1, characterized in that: The hanging connection member (7) comprises a plurality of flexible belts (71) arranged at intervals, one end of the flexible belt (71) being fixedly connected to the left side or the right side of the seat cushion (6), and the other end of the flexible belt (71) being connected to a locking structure (8), and the locking structure (8) being hung and connected to the support armrest (5).

3. A simple shifting vehicle according to claim 2, characterized in that: The locking structure (8) comprises a buckle (81) and a locking buckle (82), one of the buckle (81) and the locking buckle (82) being connected to the other end of the flexible belt (71), and the other of the buckle (81) and the locking buckle (82) being connected to the support armrest (5). By the buckling cooperation between the buckle (81) and the locking buckle (82), the seat cushion (6) and the hanging connector (7) are detachably mounted relative to the support armrest (5).

4. The simple shifting vehicle according to claim 1, characterized in that: The base frame (9) includes a base (2) and two supporting legs (3); the two supporting legs (3) each include a rear supporting section (31) and a front supporting section (32), the rear supporting section (31) being connected to the outside of the base (2), the front supporting section (32) being rotatably connected to the front end of the rear supporting section (31) and being foldable inwardly on the front side of the base (2), and the universal caster (10) being connected to the outer ends of the rear supporting section (31) and the front supporting section (32).

5. The simple shifting vehicle according to claim 1, characterized in that: The front side of the movable end of the lifting column (4) is fixedly connected to an armrest support structure (11); when the support armrest (5) is in the unfolded position, it abuts against the upper side of the armrest support structure (11), so that the support armrest (5) extends laterally on the front side of the lifting column (4).

6. The simple shifting vehicle according to claim 5, characterized in that: The support armrest (5) is in a "U"-shaped structure, including a middle section (51) and two support means (52). The two support means (52) are symmetrically connected to the two ends of the middle section (51). The seat cushion (6) is connected to the two support means (52). The middle section (51) is rotatably connected to the rear side of the movable end of the lifting column (4) through a pipe code (53), and the two support means (52) are flipped back and forth between the unfolded position and the stored position.

7. A simple shifting vehicle according to claim 1 or 4, characterized in that: The rear ends of the two supporting legs (3) are respectively rotatably connected to the outer side of the base (2); an external support synchronization mechanism (12) is provided on the rear side of the base (2); the external support synchronization mechanism (12) is transmission-connected to the rear ends of the two supporting legs (3); the two supporting legs (3) are driven by the external support synchronization mechanism (12) to switch between the external support position and the retracted position.

8. The simple shifting vehicle according to claim 6, characterized in that: The handrail support structure (11) comprises a support transverse tube (111), and both ends of the support transverse rod are provided with upwardly open pipe clamps (112). The middle of the support transverse tube (111) is fixedly connected to the lifting column (4) via a connecting block (113), and the two support means (52) of the support handrail (5) are positioned and abutted against the pipe clamps (112).

9. The simple shifting vehicle according to claim 2, characterized in that: The length of the flexible belt (71) on each side gradually decreases in the direction away from the lifting column (4), and the seat cushion (6) is obliquely connected to the bottom of the support armrest (5) through the flexible belts (71) of different lengths; The two flexible belts (71) connected to the front end of the seat cushion (6) are in a cross structure, wherein the other end of the left flexible belt (71) is connected to the right locking structure (8), and the other end of the right flexible belt (71) is connected to the left locking structure (8).

10. A method for inserting a split seat cushion of a shift vehicle, characterized in that: have: The steps of unlocking the locking structure (8) and disassembling the seat cushion (2) and the support armrest (5); The steps of placing a separate seat cushion (2) on the sitting position left by the user and transferring the user until the buttocks are seated on the seat cushion (2), or directly inserting the separate seat cushion (2) between the buttocks of the user and the sitting position left by the user; Adjust the position of the shifting vehicle so that the support armrest (5) is moved above the seat cushion (2) attachment; The step of re-fastening the locking structure (8) to form a hanging connection between the seat cushion (2) and the support armrest (5); The steps of starting the lifting column (4) to lift the user out of the sitting position, and moving the user to a desired position with the help of a movable shifting vehicle.

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