CN112402144A

CN112402144A - Self-locking mechanism and nursing machine

Info

Publication number: CN112402144A
Application number: CN202011269325.1A
Authority: CN
Inventors: 郑柏阳; 陈少克; 陈思源; 姚丽; 张天海; 陈志勇; 宋盼盼; 李志杰; 刘万鑫; 刘俊杰; 耿至锴; 黄渊
Original assignee: Shantou University
Current assignee: Shantou University
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-02-26

Abstract

The invention discloses a self-locking mechanism and a nursing machine, and relates to the technical field of self-locking. The self-locking mechanism provided by the present invention includes: a fixed component, the fixed component is fixedly arranged; a rotating mechanism, the rotating mechanism includes a self-locking rod and a first rotating component, the self-locking rod and the fixed component are rotatably connected, and one end of the self-locking rod is connected to the first rotating component. A rotating component is connected, and the other end of the self-locking rod can be rotated toward the bottom of the fixed component under force, and the first rotating component is clamped with the external connecting piece. The self-locking mechanism of the present invention does not require manual operation, has a simple structure, and is easy to disassemble and assemble. The nursing machine of the present invention includes: a bed body; the self-locking mechanism as described above; a wheelchair, and the wheelchair is provided with a plurality of electric push rod devices. The nursing machine of the invention has various functions and is convenient to operate.

Description

Self-locking mechanism and nursing machine

Technical Field

The invention relates to the technical field of self-locking, in particular to a self-locking mechanism and a nursing machine.

Background

Among the correlation technique, inconvenient old man moves between bed body, seat, wheelchair etc. is a huge engineering, needs two to three people help simultaneously sometimes, and is big to the manpower demand, can cause the secondary injury easily at the removal process simultaneously, but the manpower that can look after old man in general family is few, and especially the solitary old man is more, consequently can't satisfy the demand of looking after inconvenient old man of moving. Moreover, the conventional locking mechanism is usually adopted to manually lock the nursing machine to complete the conversion from the wheelchair to the bed body, but the conventional locking mechanism causes troublesome operation and causes certain obstruction to the old who are inconvenient to move, and particularly the locking mechanism with a complex structure is very troublesome if the old is inconvenient to operate due to physical reasons. Moreover, the nursing machine common in domestic market has single function and is inconvenient to use, and the various requirements of the old cannot be met.

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 self-locking mechanism which can be automatically locked without manual operation, and has the advantages of simple structure and convenience in disassembly and assembly.

The invention also provides a nursing machine with the self-locking mechanism.

According to an embodiment of the first aspect of the present invention, the self-locking mechanism includes:

the fixing component is fixedly arranged;

the self-locking mechanism comprises a self-locking rod and a first rotating assembly, the self-locking rod is rotatably connected with the fixed assembly, one end of the self-locking rod is connected with the first rotating assembly, and the other end of the self-locking rod can be forced to rotate towards the bottom of the fixed assembly and enables the first rotating assembly to be connected with an external connecting piece in a clamping mode.

The self-locking mechanism provided by the embodiment of the invention at least has the following beneficial effects:

through setting up from the locking lever to one end sets up first rotating assembly, when the other end atress of self-locking lever is rotatory to fixed subassembly's bottom, first rotating assembly will be rotatory and with the external connecting piece joint to fixed subassembly's top, consequently, does not need manual operation just can make self-locking mechanism and external connecting piece joint, convenient and fast, and overall structure is simple, easy to carry out, the dismouting of being convenient for.

According to some embodiments of the invention, the first rotating assembly comprises a first jaw and a second jaw forming a slot, the slot being engaged with the external connector.

According to some embodiments of the invention, the rotation mechanism further comprises a second rotation assembly connected to the other end of the self-locking lever.

According to some embodiments of the present invention, the second rotation assembly includes a bearing member detachably connected to the connection assembly, and a connection assembly detachably connected to the other end of the self-locking lever.

According to some embodiments of the invention, the connecting assembly comprises a first sleeve, a connecting rod and a connecting sleeve, the first sleeve is detachably connected with the other end of the self-locking rod, the connecting rod is detachably connected with the first sleeve, the connecting sleeve is sleeved with the connecting rod, and the connecting sleeve is detachably connected with the pressure-bearing part.

A care machine according to an embodiment of the second aspect of the invention comprises:

a bed body;

the self-locking mechanism according to any one of claims 1 to 5, wherein the self-locking mechanism is connected with the bed body;

the wheelchair comprises a base and a bearing component, an external connecting piece is arranged on the base, the base is provided with a plurality of electric push rod devices, one ends of the electric push rod devices are fixedly arranged on the base, the other ends of the electric push rod devices are connected with the bearing component, and the bearing component can enable the rotating mechanism to rotate and is connected with the base in a clamping mode.

The nursing machine provided by the embodiment of the invention has at least the following beneficial effects:

by adopting the self-locking mechanism and adopting the bed body and the wheelchair which are arranged in a matched manner, when the wheelchair is required to be combined with the bed body, firstly, the wheelchair is switched from a standing posture or a sitting posture to a lying posture through the electric push rod device, then, the wheelchair is close to the bed body to be connected, and finally, the self-locking mechanism can automatically complete connection. When the wheelchair is required to be separated from the bed body, the wheelchair in the lying posture state is required to be moved to be away from the bed body, and then the wheelchair is switched into the standing posture or the sitting posture through the electric push rod device according to requirements. Therefore, the nursing machine can assist the old to independently complete the butt joint of the wheelchair and the bed body, and also can assist the old to independently complete the basic actions required by daily life such as changing from lying to sitting and from sitting to standing, so that the mobility-handicapped people can regain the capability of independent life.

According to some embodiments of the invention, the bed body is provided with a groove, the self-locking mechanism is arranged in the groove, and the wheelchair is clamped with the bed body through the groove.

According to some embodiments of the invention, the supporting assembly comprises a back cushion, a first blocking piece and a second blocking piece, the first blocking piece is used for pushing the pressure-bearing piece when the wheelchair is released from clamping, the second blocking piece is used for pushing the pressure-bearing piece when the wheelchair is clamped, the back cushion is used for matching with the first blocking piece to push the pressure-bearing piece or the second blocking piece to push the pressure-bearing piece, and the base comprises a third clamping piece which is used for clamping with the clamping groove.

According to some embodiments of the present invention, the first blocking member and the second blocking member are located at the bottom of the back pad and abut against the back pad, and the third blocking member is located at the bottom of the back pad and outside the base.

According to some embodiments of the invention, the length of the pressure bearing member is less than the width of the wheelchair.

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 invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic structural diagram of a self-locking mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the rotating mechanism shown in fig. 1;

FIG. 3 is a schematic structural view of the first rotating assembly shown in FIG. 2;

FIG. 4 is a schematic structural view of the second rotating assembly shown in FIG. 2;

FIG. 5 is a schematic structural view of the connection assembly shown in FIG. 4;

FIG. 6 is a partial schematic structural view of the fixing assembly shown in FIG. 1;

FIG. 7 is a schematic structural view of the fixing assembly shown in FIG. 1;

FIG. 8 is a schematic view of a nursing machine according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of the wheelchair illustrated in FIG. 8;

fig. 10 is a partial schematic view of the bottom structure of the nursing machine shown in fig. 8.

Reference numerals:

the fixing component 100, the fixing sleeve 110, the third through hole 111, the fourth connecting hole 112, the fixing rod 120, the rotating mechanism 200, the self-locking rod 210, the first rotating component 220, the first clamping piece 221, the second sleeve 2211, the first through hole 2211a, the first connecting hole 2211b, the first clamping piece 2212, the second clamping piece 222, the connecting block 2221, the second connecting hole 2221a, the second clamping piece 2222, the clamping groove 223, the second rotating component 230, the bearing component 231, the connecting component 232, the first sleeve 2321, the second through hole 2321a, the third connecting hole 2321b, the connecting rod 2322, the connecting sleeve 2323, the mounting hole 2323a, the bed 300, the groove 310, the bed frame 320, the wheelchair 400, the base 410, the electric push rod device 411, the third clamping piece 412, the pulley 413, the driving motor 414, the bearing component 420, the back cushion 421, the first clamping piece 422, the second clamping piece 423, the driving motor 424, the foot cushion 425 and the crutch 500.

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 should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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 present 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.

Next, a self-locking mechanism according to an embodiment of the present invention is described with reference to fig. 1.

As shown in fig. 1, a self-locking mechanism according to an embodiment of the present invention includes:

the fixing component 100, the fixing component 100 is fixedly arranged;

the self-locking rod 210 is rotatably connected with the fixed component 100, one end of the self-locking rod 210 is connected with the first rotating component 220, the other end of the self-locking rod 210 can be forced to rotate towards the bottom of the fixed component 100, and the first rotating component 220 is clamped with an external connecting piece.

From locking lever 210 and from locking lever 210 to be connected with fixed subassembly 100 rotatably through setting up, make from locking lever 210 can be rotatory for the axle around fixed subassembly 200, and from the one end of locking lever 210 sets up first rotating assembly 220, when the other end of locking lever 210 receives external force and rotatory to fixed subassembly 100 bottom, first rotating assembly 220 will rotate to fixed subassembly 100 top and with the external connection piece joint, consequently, do not need manual operation just can make self-locking mechanism and external connection piece joint, and is convenient and fast, and self-locking mechanism simple structure, easy to carry out, the dismouting of being convenient for.

It can be appreciated that, as shown in fig. 2, the first rotating member 220 includes a first catch 221 and a second catch 222, the first catch 221 and the second catch 222 form a catch 223, and the catch 223 catches the external connector. The clamping groove 223 is convenient to clamp with an external connecting piece, and is simple in structure and easy to implement.

Specifically, as shown in fig. 3, the first latching member 221 includes a second sleeve 2211 and a first latching block 2212, the second latching member 222 includes a connecting block 2221 and a second latching block 2222, the first latching block 2212 is detachably connected to the second sleeve 2211, one end of the self-locking rod 210 is detachably connected to the second sleeve 2211, the connecting block 2221 is detachably connected to the second sleeve 2211, and the connecting block 2221 is detachably connected to the second latching block 2222. Simple structure, easy dismounting.

Further, as shown in fig. 3, the second sleeve 2211 is provided with a first through hole 2211a and a first connection hole 2211b, one end of the self-locking rod 210 penetrates through one end of the first through hole 2211a and is detachably connected with the second sleeve 2211, the connection block 2221 penetrates through the other end of the first through hole 2211a and is detachably connected with the second sleeve 2211, the first fixture block 2212 penetrates through the first connection hole 2211b and is detachably connected with the second sleeve 2211, the connection block 2221 is provided with a second connection hole 2221a, and the second fixture block 2222 penetrates through the second connection hole 2221a and is detachably connected with the connection block 2221. The depth of the clamping groove 223 is further increased by the first clamping block 2212 and the second clamping block 2222, the external connecting piece can be clamped more conveniently when the external connecting piece is in butt joint, and the structure is simple and the disassembly and the assembly are convenient.

It is understood that, as shown in fig. 2, the rotation mechanism 200 further includes a second rotation assembly 230, and the second rotation assembly 230 is connected to the other end of the self-locking lever 210. The second rotating assembly 230 can increase the force-bearing area of the other end of the self-locking rod 210, so as to ensure that the self-locking mechanism can sense the force in time and operate stably.

It is understood that, as shown in fig. 4 and 5, the second rotating assembly 230 includes a bearing member 231 and a connecting assembly 232, the bearing member 231 is detachably connected to the connecting assembly 232, and the connecting assembly 232 is detachably connected to the other end of the self-locking lever 210. Simple structure, easy dismounting. It can be understood that, as shown in fig. 4, the pressure-bearing member 231 is rectangular to enlarge the contact area, so as to ensure that the self-locking mechanism can be stressed in time and operate stably. It is understood that the pressure bearing member 231 may also be square, circular or elliptical. In order to save materials, the bearing member 231 may also be in a grid shape, and the mesh of the grid may be in a rectangular shape, a square shape, a circular shape, or an elliptical shape. For durability, the pressure-bearing member 231 is made of acrylic.

It is understood that, as shown in fig. 5, the connection assembly 232 includes a first sleeve 2321, a connection rod 2322 and a connection sleeve 2323, the first sleeve 2321 is detachably connected to the other end of the self-locking rod 210, the connection rod 2322 is detachably connected to the first sleeve 2321, the connection sleeve 2323 is sleeved on the connection rod 2322, and the connection sleeve 2323 is detachably connected to the bearing member 231. Simple structure, easy dismounting.

Specifically, as shown in fig. 4 and 5, the first sleeve 2321 is provided with a second through hole 2321a and a third connecting hole 2321b, the other end of the self-locking rod 210 penetrates through the second through hole 2321a and is detachably connected with the first sleeve 2321, the connecting rod 2322 penetrates through the third connecting hole 2321b and is detachably connected with the first sleeve 2321, the connecting sleeve 2323 is provided with a plurality of mounting holes 2323a, and the screw penetrates through the mounting hole 2323a so that the connecting sleeve 2323 is detachably connected with the pressure-bearing member 231. The connecting assembly 232 is convenient to disassemble and assemble, and is easy to replace problematic parts. Further, a screw is inserted into the mounting hole 2323a to screw the connection sleeve 2323 with the bearing member 231. The connection is stable, the rotation of the bearing part 231 is facilitated, and the threaded connection is also facilitated for disassembly and assembly.

It will be appreciated that the fixing assembly 100, as shown in fig. 6 and 7, includes a fixing sleeve 110, a fixing rod 120, and a bracket 130, the fixing sleeve 110 being detachably coupled to one end of the fixing rod 120, and the other end of the fixing rod 120 being detachably coupled to the bracket 130. Specifically, the fixing sleeve 110 is provided with a third through hole 111 and a fourth connecting hole 112, the self-locking rod 210 is inserted into the third through hole 111 and detachably connected to the fixing sleeve 110, and one end of the fixing rod 120 is inserted into the fourth connecting hole 112 and rotatably connected to the fixing sleeve 110. The self-locking rod 210 is inserted into the fixing sleeve 110 and the fixing sleeve 110 is rotatable, so that the self-locking rod 210 and the fixing sleeve 110 can rotate around the fixing rod 120. It is understood that the fixing rods 120 are two and located at both sides of the fixing sleeve 110, respectively.

A nursing machine according to an embodiment of the present invention is described below with reference to fig. 8.

As shown in fig. 8, a nursing machine according to an embodiment of the present invention includes:

a bed body 300;

as the self-locking mechanism is connected with the bed body 300;

the wheelchair 400 and the wheelchair 400 comprise a base 410 and a supporting component 420, the external connecting piece is the base 410, the base 410 is provided with a plurality of electric push rod devices 411, one ends of the electric push rod devices 411 are fixedly arranged on the base 410, the other ends of the electric push rod devices 411 are connected with the supporting component 420, and the supporting component 420 can enable the rotating mechanism 200 to rotate and is connected with the base 410 in a clamping mode.

By adopting the self-locking mechanism and adopting the bed body 300 and the wheelchair 400 which are arranged in a matching manner, when the wheelchair 400 is required to be combined with the bed body 300, firstly, the electric push rod device 411 adjusts the bearing component 420 to enable the wheelchair 400 to be switched from a standing posture or a sitting posture to a lying posture, then the wheelchair 400 is close to the bed body 300 to be connected, finally, in the process that the wheelchair 400 is close to the bed body 300, the bearing component 420 enables the first rotating component 220 and the second rotating component 230 in the self-locking mechanism to rotate around the fixing component 100, the first rotating component 220 is connected with the bed body 300 automatically by being clamped with the base 410 after rotating, at the moment, the wheelchair 400 is in the lying state after being released, and before the self-locking structure is subjected to pressure exerted by the wheelchair 400 and disappears, the self-locking structure always keeps the locked state of the wheelchair 400 and the bed. When the wheelchair 400 is required to be separated from the bed body 300, the self-locking mechanism can quickly realize the separation of the wheelchair 400 and the bed body 300 only by moving the wheelchair 400 away from the bed body 300, and then the electric push rod device 411 can be used for adjusting the wheelchair 400 to be in a sitting posture or a standing posture as required, so that the whole operation is convenient and quick, and the nursing machine is stable in whole structure, free of shaking, safe and reliable; therefore, the nursing machine can assist the old to complete the butt joint of the wheelchair 400 and the bed body 300, and also can assist the old to independently complete the basic actions required by daily life such as changing from lying to sitting and from sitting to standing, so that the mobility-handicapped people can regain the capability of independent life, and the nursing machine has various functions and is convenient and fast to operate.

It can be understood that, as shown in fig. 8, the bed 300 is provided with a groove 310, the self-locking mechanism is arranged in the groove 310, and the wheelchair 400 is clamped with the bed 300 through the groove 310. The groove 310 is arranged to facilitate the clamping connection between the bed body 300 and the wheelchair 400, and the overall structure of the nursing machine is more stable.

It can be understood that, as shown in fig. 9, the supporting assembly 420 includes a back cushion 421, a first blocking member 422 and a second blocking member 423, the first blocking member 422 is used for pushing the bearing member 231 when the wheelchair 400 is released from the clamping, the second blocking member 423 is used for abutting against the bearing member 231 when the wheelchair 400 is clamped, the back cushion 421 is used for matching with the first blocking member 422 to push the bearing member 231 or the second blocking member 423 to abut against the bearing member 231, the base 410 includes a third clamping member 412, and the third clamping member 412 is used for clamping with the clamping groove 223. Simple structure and easy implementation.

It can be understood that, as shown in fig. 9, the first stopper 422 and the second stopper 423 are located at the bottom of the back pad 421 and abut against the back pad 421, and the third stopper 412 is located at the bottom of the back pad 421 and outside the base 410. The first blocking member 422 and the second blocking member 423 are located at the bottom of the back pad 421 and abut against the back pad 421, so that the three members can be smoothly matched and stably connected, the position of the third clamping member 412 can just clamp the first rotating assembly 220 during clamping, and in addition, the disassembly and the assembly are convenient.

Specifically, as shown in fig. 9 and 10, the first stopper 422, the second stopper 423 and the third stopper 412 are arranged in sequence according to the distance between the wheelchair 400 and the bed 300 during clamping and the distance from the first stopper to the second stopper 423. By providing the first stopper 422, the second stopper 423 and the third locking member 412, when connecting, the back pad 421 pushes the second rotating assembly 230 to rotate with the fixing assembly 100 as the bottom of the axial fixing assembly 100, so as to drive the first rotating assembly 220 to be locked with the third locking member 412, and the second stopper 423 can abut against the second rotating assembly 230 to stop pushing. When the first stopper 422 pushes the second rotating assembly 230 to rotate with the fixing assembly 100 as the top of the axial fixing assembly 100, so that the first rotating assembly 220 is separated from the third clamping member 412, and the back cushion 421 plays a role of assisting in the process. The whole process does not need manual operation, and the structure is simple, convenient and fast.

It can be understood that, as shown in fig. 8 and 9, there are two electric push rod devices 411, the supporting assembly 420 further includes a cushion 424 and a fixing member, one end of one electric push rod device 411 is detachably connected to the second blocking member 423 located at the bottom of the back cushion 421, and one end of the other electric push rod device 411 is detachably connected to the fixing member located at the bottom of the cushion 424. The transformation of three postures of sitting, lying and standing of the wheelchair 400 can be realized by controlling the extension and retraction of the electric push rod device 411, so that the user is assisted to complete basic functions of going out, posture transformation, transfer among different instruments and the like. It will be appreciated that the brace assembly 420 also includes a foot pad 425 for shielding the lower leg.

It can be understood that the bottom of the base 410 is provided with four pulleys 413, the base 410 is further provided with two driving motors 414, the driving motors 414 are located at the bottom of the back cushion 421 for driving the two pulleys 413 near one side of the back cushion 421, and the two pulleys 413 far away from the back cushion 421 are universal pulleys. The motor is driven, and the operation is convenient. Furthermore, the size of the two pulleys 413 close to one side of the back cushion 421 is larger than that of the two pulleys 413 far away from the back cushion 421, so that the driving is more labor-saving.

It will be appreciated that, as shown in fig. 8, the length of the bearing member 231 is less than the width of the wheelchair 400. The length of the pressure-bearing member 231 in the width direction of the wheelchair 400 is smaller than the width of the wheelchair 400, so that the rotation mechanism 200 can rotate conveniently, and the bed body 300 can be clamped with the wheelchair 400 conveniently.

As shown in fig. 8 and 10, in operation, the wheelchair 400 is first switched from a standing or sitting position to a lying position outside the bed 300, and then the side of the wheelchair 400 containing the back pad 421 is first inserted into the groove 310 of the bed, and the wheelchair 400 begins to dock with the bed 300. When the back cushion 421 of the wheelchair 400 contacts the pressure-bearing member 231, and the wheelchair 400 is in engagement with the bed body 300, the back cushion 421 and the second stopper 423 of the wheelchair 400 continuously push the pressure-bearing member 231, and due to the transmission of the pressure-bearing member 231, the self-locking lever 210 and the first rotating assembly 220 fixed at one end of the self-locking lever 210 rotate around the fixing rod 120. When the back cushion 421 of the wheelchair 400 contacts with the bed 300, the engaging groove 223 of the first rotating assembly 220 rotates to the position of the third engaging member 412 of the base 410 of the wheelchair 400, and the third engaging member 412 is engaged. While the second stopper 423 abuts against the pressure bearing member 231. The second stopper 423 and the third stopper 412 are matched with each other, so that the movement of the pressure-bearing part 231 and the first rotating assembly 220 is respectively limited when the bed body 300 is completely butted with the wheelchair 400, the rotating mechanism 200 cannot freely rotate when self-locking is completed, and meanwhile, the rotating mechanism 200 also firmly clamps the third stopper 412 of the base 410 of the wheelchair 400, so that the self-locking purpose is achieved, and the resetting and self-locking of the wheelchair 400 are completed.

It is understood that, as shown in fig. 8, the bed 300 includes a bed frame 320 at the bottom, and the nursing machine further includes a crutch 500, and the crutch 500 is placed in the bed frame 320. The crutch 500 is placed at the bottom of the bed body 300, so that the space can be effectively saved, and in addition, when the crutch needs to stand, the crutch 500 can be directly taken out from the bottom of the bed body 300, so that the operation is convenient.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. Self-locking mechanism, its characterized in that includes:

the fixing component is fixedly arranged;

2. The self-locking mechanism of claim 1, wherein the first rotating assembly comprises a first clip and a second clip, the first clip and the second clip forming a slot, the slot being engaged with the external connector.

3. The self-locking mechanism of claim 1, wherein the rotation mechanism further comprises a second rotation assembly connected to the other end of the self-locking lever.

4. The self-locking mechanism of claim 3, wherein the second rotating assembly comprises a bearing part and a connecting assembly, the bearing part is detachably connected with the connecting assembly, and the connecting assembly is detachably connected with the other end of the self-locking rod.

5. The self-locking mechanism of claim 4, wherein the connecting assembly comprises a first sleeve, a connecting rod and a connecting sleeve, the first sleeve is detachably connected with the other end of the self-locking rod, the connecting rod is detachably connected with the first sleeve, the connecting sleeve is sleeved with the connecting rod, and the connecting sleeve is detachably connected with the pressure-bearing member.

6. Nursing machine, its characterized in that includes:

a bed body;

7. The nursing machine according to claim 6, wherein the bed body is provided with a groove, the self-locking mechanism is arranged in the groove, and the wheelchair is clamped with the bed body through the groove.

8. The nursing machine according to claim 7, wherein the supporting assembly comprises a back cushion, a first blocking member and a second blocking member, the first blocking member is used for pushing the pressure-bearing member when the wheelchair is released from clamping, the second blocking member is used for abutting against the pressure-bearing member when the wheelchair is clamped, the back cushion is used for matching with the first blocking member to push the pressure-bearing member or the second blocking member to abut against the pressure-bearing member, the base comprises a third clamping member, and the third clamping member is used for being clamped with the clamping groove.

9. The machine of claim 8, wherein the first and second stops are located at a bottom of the back pad and abut the back pad, and the third catch is located at the bottom of the back pad and outside the base.

10. The machine of claim 9, wherein the length of the bearing member is less than the width of the wheelchair.