CN210962704U - Wheelchair comprising support structure - Google Patents

Abstract

The utility model provides a wheelchair comprising a supporting structure, which comprises a supporting structure (11) and a seat lifting structure (21); the supporting structure (11) comprises an electric push rod (111), a first supporting rod (112), a second supporting rod (113) and a supporting plate (114); the first end of the electric push rod (111) is connected with the first edge of the supporting plate (114); one end of the first supporting rod (112) is hinged at the second edge of the supporting plate (114), and one end of the second supporting rod (113) is hinged at the third edge of the supporting plate (114); the second end of the electric push rod (111) is fixed on the seat lifting structure (21). The utility model provides a wheelchair can be when carrying out the position removal with the inconvenient user of action for user's prothorax and backup pad (114) contact obtain the support of backup pad (114), and the nursing staff of being convenient for removes the user, has reduced nursing staff's working strength.

Description

A wheelchair including a support structure

technical field

The utility model relates to the field of rehabilitation assistance, in particular to a wheelchair including a support structure.

Background technique

For sick users (such as lower extremity function decline, leg injury), or older users (incapable of moving autonomously), users with lower extremity disabilities, etc., when the nursing staff helps them move (get out of the bed), it is often necessary to It can only be completed by two or more paramedics, and the entire movement requires paramedic assistance.

Utility model content

In view of this, the purpose of the embodiments of the present invention is to provide a wheelchair including a support structure, which can facilitate the nursing staff to move the user and reduce the work intensity of the nursing staff; The contact area is large, so that the pressure on the user's front chest is small, which avoids the discomfort of local force when the user's upper body is lifted and lowered, and improves the user's comfort.

In some embodiments, embodiments of the present invention provide a wheelchair including a support structure, wherein the support structure (11) and a seat lifting structure (21) are included; wherein, the support structure (11) is fixed on the on the seat lifting structure (21); the support structure (11) includes an electric push rod (111), a first support rod (112), a second support rod (113) and a support plate (114);

The first end of the electric push rod (111) is connected with the first edge of the support plate (114);

The first end of the first support rod (112) is hinged on the second edge of the support plate (114), and the first end of the second support rod (113) is hinged on the second edge of the support plate (114). third edge;

The second end of the electric push rod (111) is fixed on the seat lifting structure (21).

In some embodiments, the support structure (11) further comprises cylindrical beams (115);

The first end of the electric push rod (111) is hinged at the middle position of the cylindrical beam (115);

The first edge of the support plate (114) is fixed on the arc surface of the cylindrical beam (115).

In some embodiments, the support structure (11) further comprises a first lever (116) and a second lever (117);

The first end of the first lever (116) is fixed on the first end of the cylindrical beam (115);

The first end of the second lever (117) is fixed on the second end of the cylindrical beam (115);

The first support rod (112) is hinged at the middle position of the first lever (116); the second support rod (113) is hinged at the middle position of the second lever (117);

The first lever (116) and the second lever (117) are both connected to the support plate (114).

In some embodiments, the support structure (11) further comprises a first handle (118) and a second handle (119);

The first handle (118) is fixed on the first lever (116) at a predetermined distance from the first end;

The second handle (119) is fixed on the second lever (117) at a predetermined distance from the first end.

In some embodiments, the seat lift structure (21) includes a first seat support beam (211), a second seat support beam (212), a first guide post (213), and a second guide post (214) ), lift the electric push rod (215), and connect the beam (216);

Wherein, the first seat support beam (211) is fixed on the first guide column (213); the second seat support beam (212) is fixed on the second guide column (214); The first end of the first guide column (213) is fixed on the first end of the connecting beam (216); the first end of the second guide column (214) is fixed on the first end of the connecting beam (216). the second end; the first end of the lift electric push rod (215) is hinged at the middle position of the connecting beam (216); the second end of the first support rod (112), the second support The second ends of the rods (113) are all fixed on the connecting beams (216).

In some embodiments, the seat lifting structure (21) further comprises a first leg block (217), a second leg block (218), a first footrest (219), a second footrest (220), a leg Block connecting beam (221);

Wherein, the first footrest (219) is fixed on the first guide column (213); the second footrest (220) is fixed on the second guide column (214); the first The leg block (217) and the second leg block (218) are both fixed on the leg block connecting beam (221); the first end of the leg block connecting beam (221) is fixed on the first guide column (213), and the second end of the leg block connecting beam (221) is fixed on the second guide column (214).

In some embodiments, a mobile chassis (31) is also included;

The second end of the first guide column (213), the second end of the second guide column (214), and the second end of the lift electric push rod (215) are all fixed on the mobile chassis (31) )superior.

In some embodiments, a seat structure (41) is also included;

Wherein, the seat structure (41) is fixed on the seat lifting structure (21).

In some embodiments, the seat structure (41) includes a first link (411), a second link (412), a first support block (413), a second support block (414), a third spring stud (415), fourth spring stud (416), first seat panel (417), second seat panel (418), first seat back (419) and second seat back (420) ;

Wherein, the rotating shaft respectively fixes the first connecting rod (411) and the second connecting rod (412) on the first seat support beam (211), and the rotating shaft connects the third connecting rod respectively (413), the fourth link (414) is fixed on the second seat support beam (212), and the first support block (415) and the second support block (416) are both fixed on On the first seat support beam (211), the third support block (417) and the fourth support block (418) are both fixed on the second seat support beam (212), the A first spring pin (419) fixes the first link (411) on the first support block (415) and the first seat support beam (211), and the second spring pin (420) Fix the third link (413) on the third support block (417) and the second seat support beam (212), and a rotating shaft connects the first seat plate (421) ) is fixed on the first link (411) and the second link (412), and a rotating shaft fixes the second seat plate (422) on the third link (413) and all On the fourth link (414), the first seat back (423) is fixed on the first seat panel (421); the second seat back (424) is fixed on the second seat back (424) on the seat panel (422); the first seat armrest (425) is connected with the first seat back (423) through a rotating part; the second seat armrest (426) is connected with the first seat armrest (426) through a rotating part A second seat back (424) is attached.

In some embodiments, the wheelchair further includes a control structure (51); the control structure (51) includes a wired controller (511), a wireless controller (512), a voice recognition module (513), a gesture recognition module ( 514) and a main control module (515);

Wherein, the wired controller (511), the wireless controller (512), the voice recognition module (513), and the gesture recognition module (514) are all electrically connected to the main control module (515), Both the electric push rod (111) and the lift electric push rod (215) are connected with the main control module (515) through wires.

An embodiment of the present invention provides a wheelchair including a support structure, which includes a support structure (11) and a seat lift structure (21); wherein the support structure (11) is fixed on the seat lift structure (21); The support structure (11) comprises an electric push rod (111), a first support rod (112), a second support rod (113) and a support plate (114); the first end of the electric push rod (111) and the support plate (114) ); one end of the first support rod (112) is hinged to the second edge of the support plate (114), and one end of the second support rod (113) is hinged to the third edge of the support plate (114); electric The second end of the push rod (111) is fixed on the seat lifting structure (21). The wheelchair including the support structure provided by the embodiment of the present invention can make the user's front chest contact with the support plate (114) to be supported by the support plate (114) during the process of moving the user with inconvenient mobility, which is convenient for nursing care. The personnel move the user, which reduces the work intensity of the nursing staff; and the contact area between the support plate (114) and the user's chest is large, so that the pressure on the user's chest is small, and the user's upper body is prevented from being lifted. The discomfort of local force when lifting and lowering improves the comfort of the user.

In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

FIG. 1 shows a schematic structural diagram of a wheelchair including a support structure provided by an embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of a support structure in a wheelchair including a support structure provided by an embodiment of the present invention;

3 shows a schematic structural diagram of a seat lifting structure in a wheelchair including a support structure provided by an embodiment of the present invention;

FIG. 4 shows a schematic structural diagram of a seat structure in a wheelchair including a support structure provided by an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, only for the convenience of describing the present utility model and simplifying the description, not Indicates or implies that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhanging" etc. do not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Some embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. The embodiments described below and features in the embodiments may be combined with each other without conflict.

As shown in FIG. 1 , the wheelchair including a support structure provided by an embodiment of the present invention specifically includes a support structure (11) and a seat lift structure (21); wherein, the support structure (11) is fixed on the seat lift structure (21). )superior.

As shown in Figure 2, the support structure (11) includes an electric push rod (111), a first support rod (112), a second support rod (113) and a support plate (114).

Here, the first end of the electric push rod (111) is connected with the first edge of the support plate (114); the nursing staff can control the electric push rod (111) to extend or shorten manually or through the controller. 111) When the electric push rod (111) is extended, the first end of the electric push rod (111) is raised, which drives the first edge of the support plate (114) to rise; when the electric push rod (111) is shortened, the When the first end is lowered, the first edge of the support plate (114) is lowered.

One end of the first support rod (112) is hinged on the second edge of the support plate (114), and the distance from the first edge is a preset distance; one end of the second support rod (113) is hinged on the third edge of the support plate (114) edge, and the distance from the first edge is a preset distance.

The second end of the electric push rod (111) is fixed on the seat lifting structure (21), and the height of the electric push rod (111) can be adjusted through the seat lifting structure (21).

As shown in Figure 2, the support structure (11) further comprises a cylindrical beam (115); the first end of the electric push rod (111) is directly hinged at the middle position of the cylindrical beam (115); the first edge of the support plate (114) It is fixed on the arc surface of the cylindrical beam (115).

As shown in Fig. 2, the support structure (11) further comprises a first lever (116) and a second lever (117), wherein the second lever (117) is not shown in the drawing.

The first end of the first lever (116) is fixed on the first end of the cylindrical beam (115); the first end of the second lever (117) is fixed on the second end of the cylindrical beam (115).

The first support rod (112) is directly hinged at the middle position of the first lever (116); the second support rod (113) is directly hinged at the middle position of the second lever (117); in a specific application, the first support rod ( 112) can be directly hinged at the first preset position of the first lever (116), and the second support rod (113) can be directly hinged at the second preset position of the second lever (117), the first preset position The first distance between the position and the first end of the cylindrical beam (115) may be equal to the second distance between the second preset position and the second end of the cylindrical beam (115).

Both the first lever (116) and the second lever (117) are connected with the support plate (114), and the shapes of the first lever (116) and the second lever (117) are the same as the shape of the plate surface of the support plate (114). match. It can be seen from FIG. 2 that the fourth edge of the support plate (114) has a concave arc shape, and the fourth edge of the support plate (114) has a certain thickness.

In the specific implementation, using the lever theorem, when the electric push rod (111) is extended, the first edge of the support plate (114) is driven to rise, because the first support rod (112) and the second support rod (113) are Fixed, therefore, the first lever (116) and the second lever (117) are based on the first support rod (112) and the second support rod (113), so that the support plate (114) rotates, that is, the support plate When the first edge of (114) is raised, the fourth edge is lowered. Similarly, when the electric push rod (111) is shortened, the first edge of the supporting plate (114) is driven to lower, and the fourth edge is raised.

As shown in Figure 2, the support structure (11) further comprises a first handle (118) and a second handle (119).

The first handle (118) is fixed on the first lever (116) at a predetermined distance from the first end;

The second handle (119) is fixed on the second lever (117) at a preset distance from the first end. When the nursing staff transfers the user to the wheelchair, the user's two hands or arms can be placed on the first end respectively. On the first handle (118) and the second handle (119), so that the user can support the body through the first handle (118) and the second handle (119).

As shown in FIG. 3 , the seat lifting structure (21) includes a first seat support beam (211), a second seat support beam (212), a first guide column (213), a second guide column (214), Lifting electric push rod (215), connecting beam (216);

The first seat support beam (211) is fixed on the first guide column (213); the second seat support beam (212) is fixed on the second guide column (214); The first end is fixed on the first end of the connecting beam (216); the first end of the second guide column (214) is fixed on the second end of the connecting beam (216); the first end of the lifting electric push rod (215) is hinged At the middle position of the connecting beam (216); the second end of the first support rod (112) and the second end of the second support rod (113) are both fixed on the connecting beam (216).

The seat lifting structure (21) further comprises a first leg block (217), a second leg block (218), a first footrest (219), a second footrest (220), and a leg block connecting beam (221);

The first footrest (219) is fixed on the first guide column (213); the second footrest (220) is fixed on the second guide column (214); the first leg block (217), the second leg block (218) are all fixed on the leg block connecting beam (221); the first end of the leg block connecting beam (221) is fixed on the first guide column (213), and the second end of the leg block connecting beam (221) is fixed on the second guide post (214).

Wherein, the first guide column (213) and the second guide column (214) are both composed of an inner sleeve and an outer sleeve.

It is worth noting that the outer sleeve of the first guide column (213) and the outer sleeve of the second guide column (214) can be manually controlled to move up and down, however, considering that the leg block connecting beam (221) is fixed on the first on the outer sleeve of the guide column (213) and the outer sleeve of the second guide column (214), therefore, the outer sleeve of the first guide column (213) and the outer sleeve of the second guide column (214) need to move at the same time, and The distances moved are equal. The first leg block (217), the second leg block (218) and the first footrest (219) are adjusted by controlling the outer casing of the first guide column (213) and the outer casing of the second guide column (214) to move up and down ), the height of the second footrest (220) is adapted to the current user, and the height of the second leg block (218) is the same as that of the first leg block (217), and the height of the second footrest (220) is the same as that of the first footrest (219) have the same height. At the same time, the heights of the first seat support beam (211) and the second seat support beam (212) can also be controlled to suit the current user.

The control structure can also generate corresponding control commands to control the lifting electric push rod (215) to drive the outer casing of the first guide column (213) and the outer casing of the second guide column (214) to move up and down, so that the first leg block (215) is moved up and down. 217), the second leg block (218), the first footrest (219), and the second footrest (220) are adapted to the current user.

As shown in FIG. 1 , the wheelchair provided by the embodiment of the present invention further includes a mobile chassis (31); the second end of the first guide post (213), the second end of the second guide post (214), the The second ends of the lift electric push rods (215) are all fixed on the mobile chassis (41).

As shown in FIG. 1 , the wheelchair provided by the embodiment of the present invention further includes a seat structure (41); the seat structure (41) is fixed on the seat lifting structure (21).

Specifically, as shown in FIG. 4 , the seat structure (41) includes a first link (411), a second link (412), a third link (413), a fourth link (414), a first link (414), a Support block (415), second support block (416), third support block (417), fourth support block (418), first spring pin (419), second spring pin (420), first seat panel (421), second seat panel (422), first seat back (423), second seat back (424), first seat armrest (425) and second seat armrest (426) );

The rotating shaft fixes the first connecting rod (411) and the second connecting rod (412) on the first seat support beam (211) respectively, and the rotating shaft respectively connects the third connecting rod (413) and the fourth connecting rod (412) to the first seat support beam (211). (414) is fixed on the second seat support beam (212), the first support block (415) and the second support block (416) are both fixed on the first seat support beam (211), and the third support block ( 417) and the fourth support block (418) are both fixed on the second seat support beam (212), and the first spring pin (419) fixes the first link (411) on the first support block (415), On the first seat support beam (211), the second spring pin (420) fixes the third link (413) on the third support block (417) and the second seat support beam (212), and the rotation axis The first seat plate (421) is fixed on the first link (411) and the second link (412), and the rotating shaft fixes the second seat plate (422) on the third link (413) and the second link (412). On the four-bar linkage (414), the first seat back (423) is fixed on the first seat plate (421); the second seat back (424) is fixed on the second seat plate (422); the first seat back (424) is fixed on the second seat plate (422); The seat armrest (425) is connected with the first seat back (423) through the rotating part; the second seat armrest (426) is connected with the second seat back (424) through the rotating part.

The wheelchair in the embodiment of the present invention further includes a control structure (51); the control structure (51) includes a wired controller (511), a wireless controller (512), a voice recognition module (513), a gesture recognition module (514) and A main control module (515); wherein, the control structure (51), the wired controller (511), the wireless controller (512), the speech recognition module (513), the gesture recognition module (514) and the main control module (515) are all Not shown in the drawings.

The wired controller (511), the wireless controller (512), the voice recognition module (513), and the gesture recognition module (514) are all electrically connected to the main control module (515), and the electric push rod (111), the lift electric push rod The rods (215) are all connected with the main control module (515) through wires.

In a specific implementation, the nursing staff or the user can send control instructions to the main control module (515) through the wired controller (511) and the wireless controller (512), so that the main control module (515) controls the movement of the electric actuator (111). Extend and shorten to adjust the current state of the support plate (114); and control the lift electric push rod (215) to move up and down to adjust the first seat support beam (211) and the second seat support beam (212) , the purpose of the height of the first leg block (217), the second leg block (218), the first footrest (219), and the second footrest (220); the movement direction and movement of the wheelchair can also be controlled through the main control module speed or move to a specified position.

In a specific implementation, the nursing staff or the user can also send out preset voice signals, so that the voice recognition module (513) recognizes the voice signals of the nursing staff or the user, generates corresponding control instructions, and sends them to the main control module (515) , so that the main control module (515) controls the elongation and shortening of the electric push rod (111) to adjust the current state of the support plate (114); and controls the lifting electric push rod (215) to move up and down to adjust the first seat Height of the seat support beam (211), the second seat support beam (212), the first leg block (217), the second leg block (218), the first footrest (219), and the second footrest (220) It can also control the movement direction and movement speed of the wheelchair or move to a designated position through the main control module.

In a specific implementation, the nursing staff or the user may also execute preset gesture signals, so that the gesture recognition module (514) recognizes the gesture signals of the nursing staff or the user, generates corresponding control instructions, and sends them to the main control module (515) , so that the main control module (515) controls the elongation and shortening of the electric push rod (111) to adjust the current state of the support plate (114); and controls the lifting electric push rod (215) to move up and down to adjust the first seat Height of the seat support beam (211), the second seat support beam (212), the first leg block (217), the second leg block (218), the first footrest (219), and the second footrest (220) It can also control the movement direction and movement speed of the wheelchair or move to a designated position through the main control module.

In the embodiment of the present invention, the control structure (51) can control the components in the wheelchair to be suitable for the current state of the user, help the medical staff to move the user, and reduce the work intensity of the nursing staff; and the support structure (11) supports The contact area between the plate (114) and the user's front chest is large, so that the pressure on the user's front chest is small, which avoids the discomfort of local force when the user's upper body is lifted and lowered, and improves the user's comfort in use ; The first leg block (217) and the second leg block (218) of the seat lifting structure (21) can also provide the user with a certain supporting effect from the auxiliary support structure (11) when the user is not seated.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A wheelchair comprising a support structure, characterized by comprising a support structure (11) and a seat lifting structure (21); wherein the support structure (11) is fixed to the seat lifting structure (21); the supporting structure (11) comprises an electric push rod (111), a first supporting rod (112), a second supporting rod (113) and a supporting plate (114);

the first end of the electric push rod (111) is connected with the first edge of the supporting plate (114);

the first end of the first supporting rod (112) is hinged at the second edge of the supporting plate (114), and the first end of the second supporting rod (113) is hinged at the third edge of the supporting plate (114);

the second end of the electric push rod (111) is fixed on the seat lifting structure (21).

2. The wheelchair according to claim 1, characterized in that the support structure (11) further comprises a cylindrical cross-beam (115);

the first end of the electric push rod (111) is hinged to the middle position of the cylindrical cross beam (115);

the first edge of the supporting plate (114) is fixed on the cambered surface of the cylindrical cross beam (115).

3. The wheelchair according to claim 2, characterized in that the support structure (11) further comprises a first lever (116) and a second lever (117);

a first end of the first lever (116) is fixed to a first end of the cylindrical beam (115);

a first end of the second lever (117) is fixed to a second end of the cylindrical beam (115);

the first supporting rod (112) is hinged at the middle position of the first lever (116); the second supporting rod (113) is hinged at the middle position of the second lever (117);

the first lever (116) and the second lever (117) are connected with the support plate (114).

4. The wheelchair according to claim 3, characterized in that the support structure (11) further comprises a first handle (118) and a second handle (119);

the first handle (118) is fixed on the first lever (116) at a preset distance from the first end;

the second handle (119) is fixed to the second lever (117) at a predetermined distance from the first end.

5. The wheelchair according to claim 4, characterized in that the seat lifting structure (21) comprises a first seat support beam (211), a second seat support beam (212), a first guide column (213), a second guide column (214), a lifting electric push rod (215), a connecting cross beam (216);

wherein the first seat support beam (211) is fixed on the first guide column (213); the second seat support beam (212) is secured to the second guide post (214); a first end of the first guide post (213) is fixed to a first end of the connecting beam (216); a first end of the second guide post (214) is fixed to a second end of the connecting cross member (216); the first end of the lifting electric push rod (215) is hinged to the middle position of the connecting cross beam (216); the second end of the first supporting rod (112) and the second end of the second supporting rod (113) are fixed on the connecting cross beam (216).

6. The wheelchair according to claim 5, characterized in that the seat lifting structure (21) further comprises a first leg shield (217), a second leg shield (218), a first footrest (219), a second footrest (220), a leg shield connecting beam (221);

wherein the first step (219) is fixed to the first guide post (213); the second pedal (220) is fixed on the second guide column (214); the first leg shield (217) and the second leg shield (218) are fixed on the leg shield connecting cross beam (221); the first end of the leg shield connecting beam (221) is fixed to the first guide post (213), and the second end of the leg shield connecting beam (221) is fixed to the second guide post (214).

7. The wheelchair according to claim 6, further comprising a moving chassis (31);

the second end of the first guide column (213), the second end of the second guide column (214) and the second end of the lifting electric push rod (215) are all fixed on the movable chassis (31).

8. The wheelchair according to claim 7, further comprising a seat structure (41);

wherein the seat structure (41) is fixed to the seat lifting structure (21).

9. The wheelchair according to claim 8, characterized in that the seat structure (41) comprises a first link (411), a second link (412), a third link (413), a fourth link (414), a first support block (415), a second support block (416), a third support block (417), a fourth support block (418), a first spring stud (419), a second spring stud (420), a first seat plate (421), a second seat plate (422), a first seat back (423), a second seat back (424), a first seat armrest (425) and a second seat armrest (426);

wherein a rotating shaft respectively fixes the first link (411) and the second link (412) to the first seat support beam (211), a rotating shaft respectively fixes the third link (413) and the fourth link (414) to the second seat support beam (212), the first support block (415) and the second support block (416) are respectively fixed to the first seat support beam (211), the third support block (417) and the fourth support block (418) are respectively fixed to the second seat support beam (212), the first link (411) is fixed to the first support block (415) and the first seat support beam (211) by the first spring pin (419), and the third link (413) is fixed to the third support block (417) and the second seat support beam (212) by the second spring pin (420), a rotating shaft fixes the first seat plate (421) to the first link (411) and the second link (412), a rotating shaft fixes the second seat plate (422) to the third link (413) and the fourth link (414), and the first seat back (423) is fixed to the first seat plate (421); the second seat back (424) is fixed to the second seat pan (422); the first seat armrest (425) is connected with the first seat back (423) through a rotating component; the second seat armrest (426) is connected to the second seat back (424) by a rotating member.

10. The wheelchair according to claim 9, further comprising a control structure (51); the control structure (51) comprises a wired controller (511), a wireless controller (512), a voice recognition module (513), a gesture recognition module (514) and a main control module (515);

the wired controller (511), the wireless controller (512), the voice recognition module (513) and the gesture recognition module (514) are electrically connected with the main control module (515), and the electric push rod (111) and the lifting electric push rod (215) are connected with the main control module (515) through wires.

Images