CN113440351A

CN113440351A - Wheelchair bed

Info

Publication number: CN113440351A
Application number: CN202110712703.7A
Authority: CN
Inventors: 李东坡; 王振乾; 封锦华
Original assignee: Guangdong Bofang Zhongji Medical Technology Co ltd
Current assignee: Guangdong Bofang Zhongji Medical Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-09-28

Abstract

The invention discloses a wheelchair bed, comprising: a wheelchair having a locked member; the bed body is provided with an inlet and outlet channel; the first locking mechanism can lock or release the wheelchair; the second locking mechanism comprises a locking assembly and a thrust assembly which are arranged on the bed body, and the thrust assembly is provided with a normal position and a thrust position; when the wheelchair moves into the access passage and reaches a preset position, the first locking mechanism can lock the wheelchair, the locking assembly can lock the locked piece, and the locked piece pushes the thrust assembly to move to a thrust position along the access direction of the wheelchair; the thrust assembly is movable toward a normal position and urges the locked member out of the locking assembly. According to the invention, the first locking mechanism and the locking assembly are adopted, the assembly steps are simple, the operation is convenient, the push-stop assembly can automatically push the wheelchair outwards to move, the manual separation operation steps are reduced, the separation process is simplified, the operation time is shortened, and the user experience is further improved.

Description

Wheelchair bed

Technical Field

The invention relates to the technical field of nursing instruments, in particular to a wheelchair bed.

Background

With the further spread of the aging population, the wheelchair bed is regarded as a nursing apparatus. However, the existing wheelchair bed has complex assembly and disassembly steps and takes a long time.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a wheelchair bed, which reduces the steps of combining and disassembling a wheelchair and a bed body, shortens the time spent and improves the experience of users.

According to an embodiment of the present invention, a wheelchair bed includes: a wheelchair having a locked piece; the wheelchair can move in or out of the bed body along the access channel; the first locking mechanism is arranged on the bed body and can lock or release the wheelchair; the second locking mechanism comprises a locking assembly and a thrust assembly which are arranged on the bed body, and the thrust assembly is provided with a normal position and a thrust position; when the wheelchair moves into the access passage and reaches a preset position, the first locking mechanism can lock the wheelchair, the locking component can lock the locked component, and the locked component pushes the thrust component to move to the thrust position along the access direction of the wheelchair; when the first locking mechanism releases the wheelchair, the thrust assembly can move towards the normal position and push the locked piece to move out of the locking assembly.

According to the wheelchair bed provided by the embodiment of the invention, the wheelchair is locked on the bed body in the process that the wheelchair is moved into the access passage through the first locking mechanism and the locking assembly, the assembling steps are simple, the operation is convenient, the time spent is shortened, and the user experience is improved. When the wheelchair is separated from the locking state, the wheelchair can be automatically pushed outwards to move through the thrust assembly, so that the manual separation operation steps are reduced, the separation process is simplified, the operation time is shortened, and the user experience is further improved.

In some embodiments, the wheelchair includes a seat back that can swing up and down, the locked member is provided on the seat back, and the locking assembly includes: the locking piece is pivotally arranged on the bed body and provided with a clamping groove, and the chair back can swing downwards and push the locking piece to swing so as to enable the locked piece to be clamped in the clamping groove; the first elastic piece can drive the locking piece to reset.

In some embodiments, the slot has a notch facing a side of the entrance of the access passage, the slot having a rear slot wall opposite the notch; the thrust assembly comprises a movable thrust piece, the thrust piece is provided with a thrust part which extends out of the rear groove wall towards one side of the groove opening, and the locked piece can push the thrust part and enable the thrust piece to move towards the thrust position.

Specifically, the thrust member is pivotally arranged on the bed body, and the thrust assembly further comprises a second elastic member so that the thrust member moves towards the normal position.

More specifically, the thrust assembly further comprises: the sleeve part is arranged in the sleeve part, and one end of the second elastic part, which extends out of the sleeve part, abuts against the thrust part; the adjusting piece is arranged on the sleeve piece in a vertically movable mode, and part of the adjusting piece is located in the sleeve piece and is abutted to the bottom of the second elastic piece.

In other embodiments, the locking member has a locking guide slope and the thrust member has a thrust guide slope, and the seat back can be stopped against the locking guide slope and the thrust guide slope when swinging downward.

Specifically, the thrust piece is constructed as a U-shaped plate, the U-shaped plate extends along the up-and-down direction, the locking piece is arranged in the U-shaped plate, and the top of the U-shaped plate forms the thrust guide inclined plane.

In other embodiments, the wheelchair comprises: a seat for mobile walking, the first locking mechanism being capable of locking or releasing the seat; the chair back is arranged on the chair seat in a manner of swinging up and down, and the locked piece is arranged on the chair back; the leg plate is arranged on the seat in a manner of swinging up and down; the wheelchair is in a flattening state when reaching the preset position, so that the seat, the chair back and the leg plates are horizontally placed.

Optionally, the wheelchair comprises a chair back capable of swinging up and down, and the locked part is arranged on the chair back; the bed body comprises a back plate component which can swing up and down, and the second locking mechanism is arranged on the back plate component.

Specifically, the back plate assembly includes: the two back plates are arranged on two opposite sides of the access passage; the connecting plate is located below the rear back plates, two ends of the connecting plate are connected to the two rear back plates respectively, and the second locking mechanism is arranged on the connecting plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a side view of a wheelchair bed according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a wheelchair bed according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a bed body according to an embodiment of the present invention;

FIG. 4 is a perspective view of a wheelchair in accordance with an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 1 at I;

FIG. 6 is a schematic structural view of a thrust assembly in an embodiment of the present invention.

Reference numerals:

100. a wheelchair bed;

10. a wheelchair; 11. a chair back; 111. a locked member; 12. a chair seat; 13. a leg plate;

20. a bed body; 21. an access passage; 22. a back plate assembly; 221. a back panel; 222. a connecting plate;

30. a first locking mechanism; 31. a locking member; 311. a wedge-shaped surface;

40. a second locking mechanism;

41. a locking assembly; 411. a locking member; 4111. a card slot; 4112. a notch; 4113. a rear slot wall; 4114. a locking guide slope; 412. a first elastic member;

42. a thrust assembly; 421. a thrust member; 4211. a thrust part; 4212. a thrust guide ramp; 422. a second elastic member; 423. a sleeve member; 424. an adjusting member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The wheelchair bed 100 according to the embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 4, a wheelchair bed 100 according to an embodiment of the present invention includes: a wheelchair 10, a bed 20, a first locking mechanism 30 and a second locking mechanism 40.

The wheelchair 10 has a locked member 111. The wheelchair 10 may be deformed to deform the inclined seat surface to a horizontal position.

The bed 20 has an access passage 21 along which the wheelchair 10 can be moved into and out of the bed 20. If the wheelchair 10 moved into the bed body 20 is the deformed wheelchair 10, the seat surface and the bed surface of the bed body 20 are on the same horizontal plane, which can be used for bearing users, increasing the bearing area and enhancing the comfort. The wheelchair 10 that is moved out of the bed body 20 can be used as the wheelchair 10 alone, and the function of the wheelchair bed 100 is added. Meanwhile, it can be understood that the user on the wheelchair bed 100 can use the wheelchair 10 for exercise without moving his body, and when the user is in a state of inconvenience in movement, paralysis or unconsciousness, the wheelchair bed 100 is used, which not only facilitates the activity of one person, but also facilitates the care of others to the user.

The first locking mechanism 30 is provided on the bed 20 and can lock or release the wheelchair 10, and the first locking mechanism 30 restricts the movement of the wheelchair 10, so that the wheelchair 10 cannot move when the first locking mechanism 30 locks the wheelchair 10, and the wheelchair 10 loses its restraint when the first locking mechanism 30 releases the wheelchair 10.

The second locking mechanism 40 includes a locking assembly 41 and a thrust assembly 42 disposed on the bed 20, the thrust assembly 42 having a normal position and a thrust position.

Wherein when the wheelchair 10 moves into the access passage 21 and reaches a predetermined position, the first locking mechanism 30 locks the wheelchair 10, the locking assembly 41 locks the locked member 111, by arranging the first locking mechanism 30 and the locking assembly 41 to lock the wheelchair 10 on the bed 20, the wheelchair 10 is stationary relative to the bed 20, thereby ensuring stability of the bearing surface for bearing the user, improving safety, and the thrust assembly 42 is pushed by the locking member 111 in the in-and-out direction of the wheelchair 10 to move to the thrust position, it being understood that the thrust assembly 42 is always kept in the normal position, to return to the normal position when the thrust assembly 42 is pushed to the thrust position by the locked member 111, the thrust assembly 42 exerts a force on the locked member 111, when the first locking mechanism 30 locks the wheelchair 10, the thrust assembly 42 is not returned to the normal position, but the thrust assembly 42 is always urged by the first locking mechanism 30 against the locked member 111. When the first locking mechanism 30 releases the wheelchair 10, the restraint of the first locking mechanism 30 is lost, the wheelchair 10 is only acted on by the thrust assembly 42, and the thrust assembly 42 can move towards the normal position and push the locked piece 111 out of the locking assembly 41.

Of course, the wheelchair 10 may be the wheelchair 10 before being deformed when the wheelchair 10 is moved into the access passage 21, and the wheelchair 10 may be deformed after the wheelchair 10 is completely moved into the access passage 21.

According to the wheelchair bed 100 of the embodiment of the invention, the wheelchair 10 is locked on the bed body 20 by the first locking mechanism 30 and the locking assembly 41 in the process that the wheelchair 10 is moved into the access passage 21, the assembly steps are simple, the operation is convenient, the time spent is shortened, and the user experience is improved. When the wheelchair 10 is separated from the locking state, the thrust assembly 42 can automatically push the wheelchair 10 outwards to move, so that the manual separation operation steps are reduced, the separation process is simplified, the operation time is shortened, and the user experience is further improved.

As shown in fig. 4 and 5, in some embodiments, the wheelchair 10 includes a backrest 11 capable of swinging up and down, wherein the backrest 11 can be lowered by swinging down to facilitate the combination of the backrest 11 with the bed 20, and the backrest 11 can be lifted by swinging up to restore the wheelchair 10 to a chair state. The locked member 111 is provided on the seat back 11, and the locking assembly 41 includes: a locking member 411 and a first elastic member 412.

The locking member 411 is pivotally disposed on the bed body 20, the locking member 411 has a locking groove 4111, and the seat back 11 can swing downward and push the locking member 411 to swing, so that the locked member 111 is locked in the locking groove 4111. The first elastic member 412 can drive the locking member 411 to reset. That is to say, when the wheelchair 10 moves into or out of the access passage 21, the wheelchair 10 may also be in a state before deformation, when the wheelchair 10 is completely in the access passage 21, the seat back 11 is driven to swing to deform the wheelchair 10, in the process of swinging the seat back 11 downward, the locked member 111 also swings downward, the locked member 111 contacts with the locking member 411, the locked member 111 swinging downward pushes the locking member 411 to swing, the locked member 111 continues to swing downward until the locked member 111 swings downward to the initial position of the locking groove 4111, the first elastic member 412 drives the locking member 411 to reset, the locking groove 4111 returns to the initial position, and the locked member 111 is clamped in the locking groove 4111.

For example, the initial body of locking piece 411 is vertical state, under the promotion of no external force promptly, locking piece 411 is vertical state, when back of the chair 11 swings downwards, locking piece 411 is pushed to the tilt state, it is non-vertical state to be promoted locking piece 411 by latch fitting 111 promptly, when the initial position of pendulum to draw-in groove 4111 under by latch fitting 111, draw-in groove 4111 position when locking piece 411 is vertical state promptly, locking piece 411 loses the promotion of external force, locking piece 411 resets to vertical state under the effect of first elastic component 412.

Specifically, the first elastic element 412 is a torsion spring, one end of the torsion spring is disposed on the locking element 411, the other end of the torsion spring is disposed on the bed 20, and the torsion force of the torsion spring drives the locking element 411 to return.

As shown in fig. 5 and 6, in some embodiments, slot 4111 has a notch 4112 facing the inlet side of access passage 21, and slot 4111 has a rear groove wall 4113 opposite to notch 4112; the thrust assembly 42 includes a movable thrust member 421, and the thrust member 421 has a thrust portion 4211 extending from a rear groove wall 4113 toward one side of the groove 4112, and the locked member 111 can push the thrust portion 4211 and move the thrust member 421 to thrust. When the back 11 swings down to make the locked member 111 engage with the engaging groove 4111, the locked member 111 pushes the thrust member 421 to move towards the thrust position, and when the locked member 111 swings down to the initial position of the engaging groove 4111, the locked member 111 enters the engaging groove 4111 from the notch 4112, the locked member 411 resets, but the thrust portion 4211 is still stopped by the locked member 111. It should be noted that the thrust assembly 42 is always kept at the normal position, the thrust member 421 is also always kept at the normal position, and when the thrust member 421 is pushed to the thrust position by the locking member 411, the thrust member 421 has a force on the locked member 111, and the force is directed toward the normal position.

As shown in fig. 5 and 6, in particular, the thrust member 421 is pivotally disposed on the bed body 20, and the thrust assembly 42 further includes a second elastic member 422, so that the thrust member 421 is moved to a normal position. For example, the second elastic member 422 is a torsion spring, one end of the torsion spring is disposed on the thrust member 421, the other end of the torsion spring is disposed on the bed body 20, and the torsion spring exerts a force on the thrust member 421, so that the force is directed to a normal position.

As shown in fig. 6, more specifically, the thrust assembly 42 further includes: a sleeve member 423, and an adjustment member 424.

The second elastic member 422 is disposed in the sleeve member 423, one end of the second elastic member 422, which extends out of the sleeve member 423, abuts against the thrust member 421, and the sleeve member 423 is arranged to restrain the second elastic member 422, so that the elastic force of the second elastic member 422 is always controlled to act on the thrust member 421, and the stability of connection between the second elastic member 422 and the thrust member 421 is improved. The adjusting member 424 is movably arranged on the sleeve member 423 up and down, a part of the adjusting member 424 is located in the sleeve member 423 and is stopped at the bottom of the second elastic member 422, the initial length of the second elastic member 422 can be changed by arranging the adjusting member 424, the acting force of the second elastic member 422 on the thrust member 421 is adjusted, and then the pushing force of the thrust member 421 on the locked member 111 is controlled. For example, the second elastic member 422 is a spring, the adjusting member 424 is controlled to move upwards, the initial length of the spring is reduced, when the thrust member 421 is in the thrust position, the acting force of the thrust member 421 on the locked member 111 is increased, and the wheelchair 10 is ejected more quickly; the control adjusting member 424 moves downwards, the initial length of the spring is increased, when the thrust member 421 is in the thrust position, the acting force of the thrust member 421 on the locked member 111 is reduced, and the ejection of the wheelchair 10 is more gradual.

As shown in fig. 1 and 5, in other embodiments, the locking member 411 has a locking guide inclined surface 4114, the thrust member 421 has a thrust guide inclined surface 4212, the seat back 11 can be stopped against the locking guide inclined surface 4114 and the thrust guide inclined surface 4212 when swinging downward, by providing the locking guide inclined surface 4114 and the thrust guide inclined surface 4212, a force bearing surface is provided for the swinging of the locking member 411 and the thrust member 421, the locked member 111 on the seat back 11 swings downward against the locking guide inclined surface 4114 and the thrust guide inclined surface 4212, the locked member 111 applies a thrust force on the locking guide inclined surface 4114 and the thrust guide inclined surface 4212, the locking guide inclined surface 4114 and the thrust guide inclined surface 4212 resolve the thrust force, and the locking member 411 and the thrust member 421 swing.

As shown in fig. 3 and 5, in particular, the thrust member 421 is configured as a U-shaped plate member, the U-shaped plate member extends in the up-down direction, the locking member 411 is disposed in the U-shaped plate member, and the top of the U-shaped plate member forms a thrust guide inclined surface 4212, and by disposing the thrust member 421 as a U-shaped plate member, the locking member 411 is disposed in the U-shaped plate member, so that the space occupied by the thrust member 421 and the locking member 411 is reduced, and the device is made more compact.

In other embodiments, as shown in figures 4 and 5, the wheelchair 10 includes: a seat 12, a backrest 11 and a leg plate 13.

The seat 12 can be used for ambulatory movement and the first locking mechanism 30 can lock or release the seat 12. The backrest 11 is provided on the seat 12 so as to be swingable up and down, and the locked member 111 is provided on the backrest 11. The leg plate 13 is provided on the seat 12 so as to be swingable up and down. The wheelchair 10 is in a flat state, the wheelchair 10 is in the flat state when the wheelchair 10 reaches a preset position, and the seat 12, the backrest 11 and the leg plates 13 are horizontally arranged. That is, the wheelchair 10 has two states: the wheelchair 10 is in a flattened state, the seat 12, the backrest 11 and the leg plates 13 are horizontally arranged, the seat 12, the backrest 11 and the leg plates 13 form a plane, the plane is matched with the bed body 20 to form a larger plane for bearing a user, and the user experience is improved; when the wheelchair 10 is in the non-unfolded state, a user can sit on the seat 12 and lean back on the backrest 11, the wheelchair 10 can bear the movement of the user to perform the function of the wheelchair 10, and the functions are increased by setting two states of the wheelchair 10.

As shown in fig. 1, 3 and 4, the wheelchair 10 may alternatively include a backrest 11 that can swing up and down, and the locked piece 111 may be provided on the backrest 11. The bed 20 includes a back plate assembly 22 that can swing up and down, and a second locking mechanism 40 is provided on the back plate assembly 22. It can be understood that when the locking assembly 41 of the second locking mechanism 40 is locked by the locking member 111, the swingable backrest 11 and the swingable backplate assembly 22 are locked together, and the backrest 11 swings upward to drive the backplate assembly 22 to swing upward, thereby forming an inclined surface against which a user can lean for the convenience of activities such as eating and reading.

As shown in fig. 2 and 3, the back plate assembly 22 includes: two backplates 221, a connecting plate 222.

Two backplates 221 are provided on opposite sides of the access duct 21. The connecting plate 222 is located below the back boards 221, two ends of the connecting plate 222 are respectively connected to the two back boards 221, and the second locking mechanism 40 is disposed on the connecting plate 222. When the wheelchair 10 is in the flat state by swinging the seat back 11 downward, the seat back 11 swings between the two back plates 221, and the locked piece 111 swings downward to the position of the second locking mechanism 40, so that the locked piece 111 is locked by the locking assembly 41.

As shown in fig. 3 and 4, in some embodiments, the first locking mechanism 30 includes a locking member 31, the locking member 31 is pivotally disposed on the bed 20, and the locking member 31 can lock or release the wheelchair 10. The locking member 31 is rotatable on the bed 20, and when the wheelchair 10 is combined with the bed 20, the locking member 31 is locked on the wheelchair 10, and the wheelchair 10 is fixed in the access passage 21, thereby stably combining the wheelchair 10 with the bed 20. When it is desired to release the wheelchair 10, the lock 31 is rotated out of engagement with the wheelchair 10, removing the restraint on the wheelchair 10.

For example, when the locking member 31 locks the wheelchair 10, the locking member 31 is located on the forward path of the wheelchair 10, the wheelchair 10 blocked by the locking member 31 cannot move forward, and when the wheelchair 10 needs to be released, the locking member 31 rotates to be out of the forward path of the wheelchair 10, and the wheelchair 10 which is no longer blocked by the locking member 31 can move forward freely.

In particular, the first locking mechanism 30 further comprises a third elastic element (not shown) provided between the locking element 31 and the bed 20, the locking element 31 having a tendency to lock the wheelchair 10. For example, the third elastic member is a torsion spring, one end of the torsion spring is disposed on the locking member 31, the other end of the torsion spring is disposed on the bed body 20, the locking member 31 has inertia to keep horizontal under the action of the torsion spring, the locking member 31 is in a horizontal state when the wheelchair 10 is locked, the wheelchair 10 pushes the locking member 411 to be out of the horizontal state in the process that the wheelchair 10 moves into the access passage 21, and when the wheelchair 10 reaches a preset position, the torsion spring pulls the locking member 31 to lock the wheelchair 10 again.

More specifically, as shown in fig. 3, the locking member 31 is provided with a wedge surface 311, and the wedge surface 311 faces the movement direction of the wheelchair 10 when it is moved out of the access passage 21. For example, the movement direction of the wheelchair 10 moving out of the access passage 21 is forward, the wedge surface 311 faces forward, and during the movement of the wheelchair 10 into the access passage 21, the wheelchair 10 moves backward, part of the wheelchair 10 slides on the wedge surface 311, the force applied by the wedge surface 311 is decomposed into a force pushing the locking member 31 to rotate, and the locking member 31 rotates to be out of the horizontal state.

An embodiment of the wheelchair bed 100 of the present invention will be described with reference to fig. 1 to 6.

A wheelchair bed 100 comprising: a wheelchair 10, a bed 20, a first locking mechanism 30 and a second locking mechanism 40.

The wheelchair 10 includes: a seat 12, a backrest 11 and a leg plate 13, wherein the seat 12 can be used for moving walking. The backrest 11 is provided on the seat 12 so as to be vertically swingable, and the locked member 111 is provided on the backrest 11. The leg plate 13 is provided on the seat 12 so as to be swingable up and down. The wheelchair 10 has a flattened condition in which the seat 12, back 11 and leg plates 13 are horizontally disposed when the wheelchair 10 is in the flattened condition.

The bed 20 has an access passage 21 along which the wheelchair 10 can be moved into and out of the bed 20. Meanwhile, the bed body 20 comprises a back plate assembly 22 capable of swinging up and down, the back plate assembly 22 comprises two back plates 221, namely a connecting plate 222, and the two back plates 221 are arranged at two opposite sides, namely the left side and the right side, of the access passage 21; the connecting plate 222 is located below the back boards 221, and two ends of the connecting plate 222 are respectively connected to the two back boards 221.

The first locking mechanism 30 comprises a locking piece 31 and a third elastic piece, the locking piece 31 is pivotally arranged on the bed body 20, a wedge surface 311 is arranged on the locking piece 31, and the wedge surface 311 faces the moving sense direction when the wheelchair 10 moves out of the access passage 21, namely the wedge surface 311 faces the front; the third elastic member is a torsion spring, one end of the torsion spring is arranged on the locking member 31, the other end of the torsion spring is arranged on the bed body 20, the locking member 31 has inertia for keeping horizontal under the acting force of the torsion spring, the locking member 31 can be buckled on the wheelchair 10 in a horizontal state, and the wheelchair 10 cannot move forwards.

The second locking mechanism 40 is disposed on the connecting plate 222, and the second locking mechanism 40 includes a locking assembly 41 and a thrust assembly 42.

The locking assembly 41 comprises a locking member 411 and a first elastic member 412, the locking member 411 is pivotally arranged on the connecting plate 222, the locking member 411 is provided with a locking groove 4111 and a locking guide inclined surface 4114, the locking groove 4111 is provided with a groove 4112 facing to one side of an inlet of the access passage 21, the locking groove 4111 is also provided with a rear groove wall 4113 opposite to the groove 4112, the locking guide inclined surface 4114 is stopped against the locked member 111 when the chair is swung downwards, and the locked member 411 is pushed by the locked member 111 to swing so that the locked member 111 is clamped in the locking groove 4111; the first elastic element 412 is a torsion spring, one end of the torsion spring is disposed on the locking element 411, the other end of the torsion spring is disposed on the bed 20, and the torsion spring can drive the locking element 411 to return to the vertical state.

The thrust assembly 42 has a normal position and a thrust position, the thrust assembly 42 being normally held in the normal position. The thrust assembly 42 includes a thrust member 421, a second elastic member 422, a sleeve member 423, and an adjusting member 424. The thrust member 421 is a U-shaped plate, the thrust member 421 extends in the up-down direction, the locking member 411 is disposed in the U-shaped plate, the thrust member 421 is pivotally disposed on the bed body 20, the thrust member 421 has a thrust portion 4211 and a thrust guiding inclined surface 4212, the thrust portion 4211 extends out of the rear groove wall 4113 towards one side of the notch 4112, the thrust guiding inclined surface 4212 is formed at the top of the U-shaped plate, and the chair stops against the thrust guiding inclined surface 4212 when being swung downward. The second elastic element 422 is a spring, the second elastic element 422 is disposed in the sleeve member 423, one end of the second elastic element 422 extending out of the sleeve member 423 abuts against the thrust member 421, and the second elastic element 422 makes the thrust member 421 move to a normal position. An adjusting member 424 is provided on the sleeve member 423 movably up and down, and a portion of the adjusting member 424 is located in the sleeve member and abuts against the bottom of the second elastic member 422.

When the wheelchair 10 moves into the access passage 21, the wheelchair 10 can be in a flat state, the locking member 31 can lock the wheelchair 10, the locking member 411 can lock the locked member 111, and the locked member 111 can push the thrust member 421 to move to a thrust position along the access direction, i.e. the front-back direction, of the wheelchair 10; when the locking member 31 releases the wheelchair 10, the thrust member 421 can move toward the normal position and push the locked member 111 to move out of the locking member 31.

Other constructions and operations of the wheelchair bed 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A wheelchair bed comprising:

a wheelchair having a locked piece;

the wheelchair can move in or out of the bed body along the access channel;

the first locking mechanism is arranged on the bed body and can lock or release the wheelchair;

the second locking mechanism comprises a locking assembly and a thrust assembly which are arranged on the bed body, and the thrust assembly is provided with a normal position and a thrust position; wherein the content of the first and second substances,

when the wheelchair moves into the access passage and reaches a preset position, the first locking mechanism can lock the wheelchair, the locking component can lock the locked component, and the locked component pushes the thrust component to move to the thrust position along the access direction of the wheelchair; when the first locking mechanism releases the wheelchair, the thrust assembly can move towards the normal position and push the locked piece to move out of the locking assembly.

2. The wheelchair bed of claim 1 wherein the wheelchair includes a seat back that swings up and down, the locked member being disposed on the seat back, the locking assembly comprising:

the locking piece is pivotally arranged on the bed body and provided with a clamping groove, and the chair back can swing downwards and push the locking piece to swing so as to enable the locked piece to be clamped in the clamping groove;

the first elastic piece can drive the locking piece to reset.

3. The wheelchair bed of claim 2 wherein the slot has a notch facing toward the entrance side of the access passage, the slot having a rear slot wall opposite the notch;

the thrust assembly comprises a movable thrust piece, the thrust piece is provided with a thrust part which extends out of the rear groove wall towards one side of the groove opening, and the locked piece can push the thrust part and enable the thrust piece to move towards the thrust position.

4. A wheelchair bed as claimed in claim 3, wherein the thrust member is pivotally mounted on the bed, the thrust assembly further comprising a second resilient member to normally urge the thrust member towards the normal position.

5. The wheelchair bed of claim 4 wherein the thrust assembly further comprises:

the sleeve part is arranged in the sleeve part, and one end of the second elastic part, which extends out of the sleeve part, abuts against the thrust part;

the adjusting piece is arranged on the sleeve piece in a vertically movable mode, and part of the adjusting piece is located in the sleeve piece and is abutted to the bottom of the second elastic piece.

6. The wheelchair bed of claim 4 wherein the latch member has a latch guide ramp and the thrust member has a thrust guide ramp, the seat back being adapted to stop against the latch guide ramp and the thrust guide ramp as the seat back swings downwardly.

7. The wheelchair bed of claim 6 wherein the thrust member is configured as a U-shaped plate extending in an up-down direction, the locking member being disposed within the U-shaped plate, the top of the U-shaped plate forming the thrust guide ramp.

8. The wheelchair bed of claim 1 wherein the wheelchair comprises:

a seat for mobile walking, the first locking mechanism being capable of locking or releasing the seat;

the chair back is arranged on the chair seat in a manner of swinging up and down, and the locked piece is arranged on the chair back;

the leg plate is arranged on the seat in a manner of swinging up and down; wherein the content of the first and second substances,

the wheelchair is provided with a flattening state, and when the wheelchair reaches the preset position, the wheelchair is in the flattening state, so that the seat, the seat back and the leg plates are horizontally placed.

9. The wheelchair bed of claim 1 wherein,

the wheelchair comprises a chair back capable of swinging up and down, and the locked part is arranged on the chair back;

the bed body comprises a back plate component which can swing up and down, and the second locking mechanism is arranged on the back plate component.

10. The wheelchair bed of claim 9 wherein the back plate assembly comprises:

the two back plates are arranged on two opposite sides of the access passage;

the connecting plate is located below the rear back plates, two ends of the connecting plate are connected to the two rear back plates respectively, and the second locking mechanism is arranged on the connecting plate.