CN111494161A

CN111494161A - Nursing limb swinging device and bed with detachable limb swinging device

Info

Publication number: CN111494161A
Application number: CN202010342750.2A
Authority: CN
Inventors: 应挺
Original assignee: Ningbo Deyi Machinery Electric Equipment Co ltd
Current assignee: Ningbo Deyi Machinery Electric Equipment Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-08-07
Anticipated expiration: 2040-04-27
Also published as: CN111494161B

Abstract

The invention discloses a limb swinging device for nursing and a bed with a detachable limb swinging device, wherein the limb swinging device comprises a limb swinging mechanism and a fixed component which are detachably matched, and the limb swinging mechanism comprises a bracket, a sliding block component and a transmission component; the fixed component comprises a first connecting mechanism, the limb swinging mechanism comprises a second connecting mechanism, and the limb swinging mechanism and the fixed component are limited in the moving direction of the sliding block component after the first connecting mechanism and the second connecting mechanism are matched. The limb swinging device has compact structure and small volume, can be used singly, is convenient to store when not in use, and is a novel limb swinging device with high practicability.

Description

Nursing limb swinging device and bed with detachable limb swinging device

Technical Field

The invention belongs to the technical field of rehabilitation appliances, and particularly relates to a limb swinging device for nursing and a bed with a detachable limb swinging device.

Background

The traditional limb swinging mechanism is generally a device placed outside a bed, has a large volume, and is troublesome to use by hanging feet or legs with belts, especially for household use, and is very inconvenient to store/place when not in use.

Disclosure of Invention

The invention aims to provide a nursing limb swinging device which is easy to store and convenient to use, and a bed with the device.

In order to achieve the purpose, the invention adopts the scheme that:

a limb swinging device for nursing comprises a limb swinging mechanism and a fixing component, wherein the limb swinging mechanism and the fixing component are detachably matched.

The limb swinging mechanism comprises a bracket, a sliding block component and a transmission component; the sliding block component is matched on the bracket in a sliding way, and the transmission component is connected with the sliding block component to drive the sliding block component to perform reciprocating displacement along the bracket.

The fixed component further comprises a first connecting mechanism, the limb swinging mechanism comprises a second connecting mechanism, and the limb swinging mechanism and the fixed component are limited in the moving direction of the sliding block component after the second connecting mechanism is matched with the first connecting mechanism.

Preferably, the limb swinging mechanism further comprises a limiting device, and the limiting device comprises a screw rod fixing support, a screw rod, a guide rod, an adjusting motor, a limiting assembly and a limiting block. The screw rod fixing support is arranged on the support, two ends of the screw rod and the guide rod are respectively matched on the two screw rod fixing supports, the limiting assembly is matched on the screw rod and the guide rod in a penetrating mode, and the adjusting motor is connected with the screw rod to drive the limiting assembly to move in a translation mode along the guide rod.

The limiting block is arranged on the sliding block component or the transmission component, a first limiting component is arranged on the limiting component, a second limiting component is arranged on the limiting block, and the first limiting component and the second limiting component are matched to limit the reciprocating displacement of the limb fixing component along the support.

Furthermore, the first limiting assembly comprises a limiting sensor, and the second limiting assembly comprises a magnet; the limiting sensor is a magnetic field sensor, and the magnet is arranged on the sliding block component.

Preferably, the first limiting assembly further comprises a limiting bracket, and the second limiting assembly comprises a limiting step; the limiting step is arranged on the sliding block assembly, and the limiting support is matched with the limiting step to limit.

Preferably, the limb swinging mechanism further comprises a reset sensor, the reset sensor is arranged at the front end of the support, and the reset sensor is a magnetic field sensor.

Preferably, the fixed component comprises a first connecting mechanism, the limb swinging mechanism comprises a second connecting mechanism matched with the first connecting mechanism, and the second connecting mechanism is matched with the first connecting mechanism to limit the limb swinging mechanism and the fixed component in the moving direction of the sliding block component.

The first connecting mechanism may have an opening portion and a clamping portion, the opening portion having an inner diameter larger than the clamping portion; one end of the second connecting mechanism is connected with the limb swinging mechanism, and the other end of the second connecting mechanism is provided with an outer connecting end and an inner connecting end, wherein the diameter of the outer connecting end is larger than that of the inner connecting end; the outer connecting end passes through the opening part and then moves downwards to be matched in the clamping part, so that the limb swinging mechanism and the fixing component are limited in the connecting direction.

Preferably, the second connecting mechanism further comprises a locking block and a locking wheel, the locking block is arranged on the limb swinging mechanism, a locking cavity is arranged in the locking block, and the main body of the second connecting mechanism is matched in the locking cavity; the locking wheel is rotatably matched on the locking block, the front end of the locking wheel is provided with a locking block, and the locking block at the front end of the locking wheel is locked or separated with the main body by rotating the locking wheel.

Preferably, the transmission assembly comprises a transmission belt and a synchronous pulley, and the synchronous pulley is arranged on the support. The transmission belt is an open synchronous belt, two ends of the transmission belt are connected to form an annular synchronous belt, the sliding block assembly is arranged on the transmission belt, and two ends of the open synchronous belt are preferably connected through the sliding block assembly; or the transmission belt is an annular synchronous belt, and the sliding block assembly is fixed on the transmission belt.

Preferably, the support frame also comprises a support wheel component arranged on the support frame, so that the tail end of the limb has a bending degree after being matched with the limb fixing component; preferably, the extremity of the limb makes an angle θ of 5-30 °, more preferably 10-15 °, with the sliding translation line.

Preferably, the limb fixing assembly further comprises a limb fixing body and a connecting piece arranged on the limb fixing body, and the connecting piece connects the limb fixing body to the sliding assembly.

The connecting piece can also comprise a connecting plate, a shaft sleeve and a rotating shaft, the connecting plate is fixedly connected with the limb fixing main body, the shaft sleeve is arranged on the connecting plate, one end of the rotating shaft is matched in the shaft sleeve and can rotate, and the other end of the rotating shaft is fixed on the sliding block component.

A bed with a detachable limb swinging device comprises a bed body, a bed tail, a bed board, a limb swinging device and other parts; the limb swinging device is the nursing limb swinging device, wherein the fixing component is arranged at the bed tail, and the limb swinging mechanism is detachably matched on the fixing component.

The novel limb swinging device for nursing provided by the invention has the advantages of compact structure and small volume, can be used singly, is convenient to store when not in use, can be used after being fixed when in use, is very convenient to fix and use, and is a novel swinging substitute device with high practicability.

The bed with the swinging device is provided with the fixing components which do not affect the normal function of the bed only at the feet of the bed, and the limb swinging device is detachably connected with the fixing components, so that the use and the storage of the limb swinging device are easy to operate.

Drawings

Fig. 1 is a schematic view showing a state in which a nursing limb swing device of the present invention is accommodated in a hospital bed;

FIG. 2 is a schematic view showing a state in which the nursing limb swinging apparatus of the present invention is engaged with a hospital bed;

FIG. 3a is a schematic view of the initial use of the nursing limb pendulous device of the present invention;

FIG. 3b is a schematic view showing the operation of the limb swinging apparatus for nursing care of the present invention;

FIG. 4 is a schematic diagram of a limb swinging mechanism according to an embodiment of the invention; wherein, the application of the mechanism as a left leg swing mechanism is shown;

FIG. 5a is a first schematic structural diagram of a swing component of the limb swing mechanism in the embodiment in FIG. 4, and FIG. 5b is a second schematic structural diagram of a swing component of the limb swing mechanism in the embodiment in FIG. 4;

FIG. 6a is a schematic diagram of the upper shell structure of the limb swinging mechanism of the embodiment in FIG. 4, and FIG. 6b is a schematic diagram of the lower shell structure of the limb swinging mechanism of the embodiment in FIG. 4;

FIG. 7a is a front view showing the engagement of the slider with the belt in the embodiment of FIG. 4, FIG. 7b is a schematic perspective view of the other side, FIG. 7c is a schematic top view, FIG. 7d is a cross-sectional view showing the engagement of the slider with the bracket, and FIG. 7e is a cross-sectional view showing the structure of the eccentric shaft;

FIG. 8 is a schematic view of the coupling of the limb swing mechanism to the drive motor;

FIG. 9 is a cross-sectional view of the drive motor built into the idler assembly;

fig. 10a is a perspective view of the fixing assembly of the present invention, fig. 10b is a side view of the fixing assembly fitted to the bed, and fig. 10c is a structural sectional view of the fixing assembly;

fig. 11 is a main structural schematic diagram of the second connecting mechanism 530;

FIGS. 12a, 12b, and 12c are schematic views illustrating the steps of engaging the second connecting mechanism with the fixing member, respectively;

FIG. 13 is a schematic view of the engagement of the second coupling mechanism with the lower case;

figures 14a and 14b are schematic perspective and front views of a spacing assembly, respectively;

FIG. 15 is a schematic view of a slider configuration in one embodiment;

FIG. 16 is a perspective view of the limb immobilization assembly of the invention;

fig. 17a is a schematic view of the structure of the connecting element of the limb fixation assembly, and fig. 17b is a schematic view of the matching principle of the connecting element.

Detailed Description

In order that those skilled in the art will better understand the invention and thus more clearly define the scope of the invention as claimed, it is described in detail below with respect to certain specific embodiments thereof. It should be noted that the following is only a few embodiments of the present invention, and the specific direct description of the related structures is only for the convenience of understanding the present invention, and the specific features do not of course directly limit the scope of the present invention. Such modifications and variations that may be apparent to a person skilled in the art, while guided by the teachings herein provided, are considered to be within the scope of the invention as claimed.

A limb swinging device for nursing comprises a limb swinging mechanism 100 and a fixed component 500, wherein the limb swinging mechanism 100 and the fixed component 500 are detachably matched. The fixing component 500 is used for integrally fixing the device, and may be fixedly connected to a carrier such as a nursing bed, a hospital bed or a general bed, or other fixable devices, without limitation; the limb swinging mechanism 100 is used for swinging, reciprocating and the like to drive the limb to move correspondingly for rehabilitation and nursing. The limb swinging mechanism 100 and the fixing component 500 are detachably connected, so that the defect that other existing limb swinging devices occupy space when not in use can be overcome.

Fig. 1 and 2 show an application scenario of the device when the device is fitted to a hospital bed, wherein fig. 2 is a schematic view of the device when the device is formed as a left-right leg swing device and fitted to a hospital bed, respectively, and fig. 1 is a schematic view of the device after main components are removed from the hospital bed, namely, a schematic view of the device in a storage state. When the rehabilitation training of the limb swing is required, the limb swing mechanism 100 is connected with the fixing component 500 to form a use state as shown in fig. 2, so that the limb swing mechanism 100 is fixed; since the fixing component 500 is fixed at the tailstock 64 or the bed 65, the feet of the user can be placed in the limb swinging mechanism 100 and driven by the limb swinging mechanism to move accordingly after the user lies on the bed plate 63, and the swinging process is shown in fig. 3a and 3 b. In which fig. 3a shows a schematic view without swing, from which it can be seen that the leg is also of a certain degree of flexion, which avoids safety problems during swing (which might cause the patient to shift as a whole if the leg were straight in the initial situation, rather than the leg swinging in a bending manner), and fig. 3b shows a schematic view during swing, from which it can be seen that the patient's leg is of a more pronounced degree of flexion. Under the drive of the limb swinging mechanism 100, the legs of the patient can perform a circulating motion between fig. 3a and 3b, so that the limb can be obviously moved and recovered. Of course, it is not intended that the maximum degree of flexion of the device is as shown in fig. 3b, and fig. 3a and 3b are merely schematic and effective illustrations of the swinging process of the swinging device of the present invention, and do not limit the swinging amplitude of the device of the present application.

After use, the limb swing mechanism 100 can be separated from the fixing component 500, and the whole limb swing mechanism 100 is stored, for example, placed at the bottom of a bed or in a cabinet; the fixing component 500 is generally fixed at the bed end 64, has small volume and is positioned at two positions of the bed end 64, and does not influence the use of the bed for basic rest function; fig. 2 shows a schematic view of a bed with the device with the limb swing mechanism 100 stowed. Fig. 4 shows a schematic structural view of the limb swinging mechanism 100 in an embodiment, more specifically a schematic view of the left leg swinging mechanism, which is an integral component and has a relatively regular surface for easy storage.

To achieve swinging of a patient's limb, such as the lower limb, the main functional components of the limb swinging mechanism 100 of the present invention include the support frame 103, the slider assembly 210, and the transmission assembly 220. The rack 103 is provided with slide rails 1031, and the slide rails 1031 are preferably a pair of slide rails provided on the rack 103 so as to face each other in the vertical direction. The slider assembly 210 is slidably engaged to the support 103, and more specifically to the slide 1031, such as by a pulley assembly 104 that includes at least one pulley. The transmission component 220 is connected with the sliding block component 210 and drives the sliding block component to reciprocate along the bracket 103 so as to drive the tail end of the limb to do synchronous reciprocating motion, thereby generating the limb swinging effect as shown in figures 3a and 3b and achieving the aim of rehabilitation and nursing. In the present invention, swing is a description of the effect on the limb (e.g., leg) that is the overall movement effect achieved by the reciprocating translational motion of the slider assembly 210 and the corresponding translation of the extremity of the limb.

In some preferred embodiments, the transmission assembly 220 may include a transmission belt 221 and a synchronous pulley 222, and the synchronous pulley 222 is directly or indirectly disposed on the support 103, for example, via a synchronous pulley fixing frame 2221 fixed on the support 103. The driving belt 221 may be an open timing belt, both ends of which are connected to form a closed loop shape and are tensioned by at least two timing pulleys 222, and the slider assembly 210 is fixed in position on the driving belt 221 such that when the driving belt 221 is driven to rotate, the slider assembly 210 is moved accordingly. It should be noted that the synchronous pulley 222 in the present application does not refer to a conventional unpowered idler, but may be a synchronous pulley driving wheel that can tension the transmission belt; alternatively, a synchronous belt driving wheel may be additionally provided on the basis, which is not limited herein.

As shown in fig. 5 to 7, in a more preferable case, both ends of the open timing belt are connected by the slider assembly 210 to form a closed loop shape, i.e., the slider assembly 210 simultaneously functions as a slider and a timing belt connection, which is advantageous to simplify the structure and reduce the cost. For a specific embodiment, as shown in fig. 7, the slider assembly 210 includes a slider 211 and a fixed connecting block 212, both ends of the driving belt 221 are fitted between the slider 211 and the fixed connecting block 212, and the slider 211 and the fixed connecting block 212 are connected and fixed to clamp both ends of the driving belt 221. Preferably, the two ends of the transmission belt 221 are spaced apart from each other, and a spacer 2121 having a thickness corresponding to the thickness of the transmission belt 221 is disposed at the space between the two ends to adjust the tightness of the transmission belt 221 so as to make it reasonable; and the length of the transmission belt 221 can be adjusted by loosening the connection between the sliding block 211 and the connection fixing block 212 and adjusting the end fixing position of the transmission belt 221 and then fixing again when needed later, so that the tensioning effect of the transmission belt 221 is ensured to be in accordance with the expectation.

Of course, the belt 221 may also be a closed endless timing belt, and the slider assembly 210 is fixed in position on the belt 221 to move with it; meanwhile, in consideration of the problem of tension variation caused by looseness of the synchronous belt after subsequent use, at least one synchronous pulley 222 may be movably disposed on the bracket 103, for example, by using a strip-shaped fixing groove and a fixing screw, which are commonly used in the prior art, or by using an eccentric shaft for fixing, which is also commonly used, to realize adjustment within a certain range.

As shown in fig. 5, the driving assembly 220 further includes a transition wheel 223, which is also disposed on the bracket 103 to control the shape of the driving belt so that the sliding block 211 can move normally, which is a very useful design for the size selection of the tension wheel, and the tension of the driving belt can be adjusted to the desired shape by introducing the transition wheel 223.

As shown in fig. 5-7, a pair of slide rails 1031 are disposed on one side of the bracket 103, and a pulley 104 is disposed on the side of the slider 211. The pulleys 104 are preferably divided into an upper pulley 1041 and a lower pulley 1042, and the upper pulley 1041 and the lower pulley 1042 are respectively composed of at least two pulleys; the upper pulley 1041 and the lower pulley 1042 are respectively engaged with the upper rail and the lower rail of the rail 1031, and are fixed to the slider 211 by a pulley shaft and a fixing nut 1043.

Preferably, at least one of the upper pulley 1041 and the lower pulley 1042 is fixed by the eccentric shaft 105 (i.e. the pulley shaft thereof is the eccentric shaft 105), the eccentric shaft 105 can be rotated by the pulley fixed by the eccentric shaft 105 to adjust the fit clearance between the upper and lower pulleys in the slide rail of the bracket 103, and the pulley fixing nut 1043 is tightened after adjustment, so as to ensure that the sliding block 211 is well fitted with the slide rail 1031. As shown in fig. 7e, the eccentric shaft 105 includes a first shaft portion 1051 and a second shaft portion 1052, the

axes

1053 and 1054 of which are eccentrically disposed, the first shaft portion 1051 and the second shaft portion 1052 are respectively used for connecting to the bracket 103 and the pulley 104, so that the second shaft portion 1052 can be vertically offset by a certain amount by the rotation of the first shaft portion 1051 relative to the bracket 103, i.e. the pulley 104 has a certain vertical floating space.

Of course, the above-mentioned manner of engaging the pulley with the pulley is a preferred embodiment of the present invention, and in practical applications, the number of the sliding rails, the arrangement position, the number of the pulleys and the engagement position thereof on the sliding block can be simply changed, which is anticipated and expected.

As shown in fig. 5-6, the limb swinging mechanism 100 preferably further comprises a driving motor 110, the driving motor 110 is disposed on the support frame 103, and an output end of the driving motor 110 is connected to a synchronous pulley 222 to drive the driving belt 221 to rotate. In addition, the limb swinging mechanism 100 further comprises an upper shell 101 and a lower shell 102, the upper shell 101 and the lower shell 102 respectively cover the support 103 from the upper direction and the lower direction, so that the main action components of the limb swinging mechanism 100 are covered in the upper shell and the lower shell to form an overall structural schematic diagram as shown in fig. 4, and therefore on one hand, the relevant action components can be protected, and on the other hand, the limb swinging mechanism is more attractive and easy to use and store. Of course, in view of the functionality of the limb swinging mechanism 100, one or both of the upper shell 101 and the lower shell 102 may have corresponding strip-shaped grooves to support the swinging function of the limb fixation assembly 300. A handle 1011 is further provided on the upper shell 101 so as to provide a holding position; the bottom of the lower case 102 is provided with a bottom plate 1021 to increase the stability of the limb swing mechanism 100, and the bottom plate 1021 is preferably arranged at an angle perpendicular or substantially perpendicular to the swing direction to improve the stability of the limb swing mechanism 100 during swing.

For safety, the limb swinging mechanism 100 may further comprise a support wheel assembly 120 fixed on the frame 103 and disposed at the same height or plus or minus a certain value as the movement line of the sliding block 211, so that after the end of the limb of the patient is fitted on the limb fixing assembly 300, the limb has a certain degree of flexion, even if the angle θ between the end of the limb and the sliding movement line is 5-30 °, preferably 10-15 °, and the practical effect thereof can be shown in fig. 3 a. This prevents the swinging of the limb swinging mechanism 100 from acting erroneously so that the patient is displaced as a whole rather than bending the limb, which is not intended to be seen and is prone to safety hazards.

As shown in fig. 9, the driving motor 110 may be disposed in the idler assembly 120 in the best case. The riding wheel assembly 120 comprises a riding wheel main body 121, a cavity is formed in the riding wheel main body 121 to allow the driving motor 110 to be arranged in the cavity, a foam wheel 122 or a foam is sleeved outside the riding wheel main body 121, a hollow protective cover 123 is arranged at the outer end of the riding wheel main body 121, a cooling fan 124 is arranged behind the protective cover 123, and the driving motor 110 and the riding wheel assembly 120 are both connected to the support 103 through a motor support 111.

The fixing assembly 500 of the present invention includes a first connecting mechanism 520 and a fixing member 510, wherein the first connecting mechanism 520 is fixed on the bed 65 or the tailstock 64 through the fixing member 510; the limb swinging mechanism 100 comprises a second connecting mechanism 530 which can be used for matching with the first connecting mechanism 520 of the fixed component 500, and the second connecting mechanism 530 can limit the limb swinging mechanism 100 and the fixed component 500 in the moving direction of the sliding block component 210 after being matched and connected with the first connecting mechanism 520, so that the limit limb swinging mechanism 100 can be fixed through the fixed component 500. Therefore, when not in use, the limb swing mechanism 100 and the fixed component 500 can be separated, the limb swing mechanism 100 can be accommodated, and the fixed component 500 has small volume and does not influence daily use. The first connection mechanism 520 and the second connection mechanism 530 can be coupled in various ways, such as by screwing, snapping, and other detachable connections known in the art.

As shown in fig. 10a-c and 11, in a preferred embodiment, the first connecting mechanism 520 includes two clamping plates 522 which are oppositely spaced apart, one end of each clamping plate 522 is expanded outwards to form an opening portion 5221 and a clamping portion 5222 in a matching manner, and the inner diameter of the opening portion 5221 is larger than that of the clamping portion 5222. The first connecting mechanism 520 further comprises a housing 521 for accommodating therein a clamping plate 522, a spacer block 523 and the like, forming a complete structure as shown in fig. 10 a. The second connecting mechanism 530 includes a main body 533, one end of the main body 533 is provided with an outer connecting end 531 and an inner connecting end 532, and the diameter of the outer connecting end 531 is larger than that of the inner connecting end 532; the second connecting mechanism 530 may be formed by a reduced diameter section at the end of the main body 533 to form an outer connecting end 531 and an inner connecting end 532. And, the second connecting mechanism 530 is downwardly displaced along the clamping plates 522 after passing through the opening 5221, and the diameter of the outer connecting end 531 is greater than the distance between the two clamping plates 522, so that the position can be limited in the connecting direction of the limb swinging mechanism 100 and the fixed component 500 (i.e. the moving direction of the slider component 210 on the support frame 103), and the matching process of the two is shown in fig. 12a-c, so that after being inserted into the fixed component 500 and downwardly displaced, the axial direction is restrained from moving for positioning purpose. Preferably, the fixing member 500 further comprises a bottom plate 5223 spaced apart from the splint 522 by a distance just enough to accommodate the external connection end 531 (i.e. the distance is equal to the thickness of the external connection end 531), so that the limb swinging mechanism 100 and the fixing member 500 are firmly connected in a limiting manner in the limiting direction. Of course, the bottom plate 5223 may not be provided, but the housing 521 is correspondingly provided with an opening to limit the position of the foot 64 as the bottom plate 5223 (i.e., the foot 64 limits the position of the bottom plate 5223 instead of the bottom plate 5223), so that the second connecting mechanism 530 is engaged with the first connecting mechanism 520, and the outer connecting end 531 is limited by the clamping plate 522 and the foot 64 in the displacement direction without generating excessive movement. Further, when the securing assembly 500 is secured, displacement of the slider assembly 210 on the limb rocking mechanism 100 is permitted without additional movement. Certainly, the lower ends of the two clamp plates 522 may also be provided with a cushion block 523 to bottom-support the external connection end 531, the two clamp plates 522 and the cushion block 523 are fixed by screws, welding, and the like to form a U-shaped fixing structure, and the upper end opening of the two clamp plates 522 is enlarged to facilitate matching. The height of the spacer 523 can be set as desired, in principle with the second connecting means 530 being arranged as horizontally as possible, which can be achieved by a combination of the dimensional relationships.

As shown in fig. 13, in a better case, the second connection mechanism 530 further includes a locking block 534 and a locking wheel 535, the locking block 534 is disposed on the bottom plate 1021 of the lower shell 102, but may be disposed on other positions of the upper shell 101 or the lower shell 102, as long as it is connected to the limb swing mechanism 100. A locking cavity 5341 is arranged in the locking block 534, and the body 533 of the second connecting mechanism 530 is matched in the locking cavity 5341; the locking wheel 535 is rotatably fitted on the locking block 534 and has a locking block at its front end, and the locking wheel 535 is rotated to engage or disengage the locking block at its front end with the body 533, thereby realizing the locking or disengagement of the second connection mechanism 530 and the limb swinging mechanism 100. According to different heights of patients, the matching position of the second connecting mechanism 530 and the limb swinging mechanism 100 can be adjusted after the locking wheel 535 is unscrewed, so that the extending length of the second connecting mechanism 530 is different, and the locking wheel 535 can be screwed and unscrewed to fix the second connecting mechanism 530 and the limb swinging mechanism 100 so as to be matched with patients with different heights for use.

As shown in fig. 5-8 and 14, the limb swinging mechanism may further include a limiting device 400, where the limiting device 400 includes a lead screw fixing bracket 401, a lead screw 402, a guide rod 403, an adjusting motor 404, a limiting assembly 410, and a limiting block. The lead screw fixing bracket 401 can be fixedly arranged on the bracket 103, two ends of the lead screw 402 and the guide rod 403 are respectively matched on the two lead screw fixing brackets 401, the limiting component 410 is penetratingly matched on the lead screw 402 and the guide rod 403, the adjusting motor 404 is fixedly arranged on the bracket 103 by the motor fixing bracket 4041, and the adjusting motor 404 is connected with the lead screw 402 through the coupler 4042 to drive the limiting component 410 to move in a translation manner; therefore, the adjustment motor 404 can be used to drive the screw rod 402 to rotate, so that the limiting assembly 410 can perform left-right translational motion along the guide rod 403. The stop assembly 410 may be engaged to the lead screw 402 and the guide bar 403 by a lead screw nut 4021 and a guide bar bearing 4031, respectively, to achieve the translational movement described above.

The limiting blocks may be disposed on the slider assembly 210 or the transmission assembly 220, and the specific positions and the matching forms are not limited as long as the limiting blocks can synchronously respond to the translational motion of the slider assembly 210. Be equipped with first spacing subassembly on the spacing subassembly 410, be equipped with the spacing subassembly of second on the stopper, first spacing subassembly and the spacing subassembly of second cooperate and carry on spacingly with the reciprocating displacement along the support to limbs fixed component 300 to the displacement amplitude to limbs swing mechanism limits, with the displacement amplitude requirement of adaptation difference.

As shown in fig. 5-8, the first position-limiting component can be a position-limiting sensor 4311, the second position-limiting component can be a magnet 4321, and the position-limiting sensor 4311 is preferably a magnetic field sensor. First, when the adjustment motor 404 drives the limit component 410 to a proper position (i.e., a limit position to be set), the magnet 4321 performs a translational swing along the bracket 103 with the slider 211, and the limit sensor 4311 sends a signal after the magnet 4321 approaches the limit sensor 4311, so that the slider 211 stops and moves in a reverse direction.

As shown in fig. 14, in a better case, the first limiting component further includes a limiting bracket 4312, and the second limiting component includes a limiting step 213, the limiting step 213 can be disposed on the connecting fixing block 212, and the limiting step 213 cooperates with the limiting bracket 4312 for mechanical limiting. Namely, after the sensing limit fails, the mechanical limit can still be used for supplementary limit, so as to avoid the adverse effect on the patient caused by exceeding the expected swing amplitude; of course, a certain amount of travel interval can be allowed between the physical limit and the sensing limit so as to protect the motor, the limit device and other components better, and the physical limit and the sensing limit can be realized through the relative arrangement position (distance) of the physical limit and the sensing limit. In addition, the physical limit can be used independently in cooperation with motor control, that is, when the current of the motor is increased after the physical limit is performed, the current of the motor is monitored to control the motor to stop and rotate reversely, so that the sliding block 211 moves reversely.

As shown in fig. 5 and 15, the limb swinging mechanism 100 further includes a reset sensor 109, and the reset sensor 109 is arranged at the front end of the support 103; the reset sensor 109 is also preferably a magnetic field sensor, and the reset sensor 109 may cooperate with a magnet 4321 as a second limit component to limit the displacement of the front end of the slider 211, and limit the displacement position of the front end of the slider 211 at the initial reset and during the subsequent swing. Of course, an additional second magnet 4322 may be disposed on the sliding assembly 210 as a component dedicated to the reset sensor 109.

The limb swinging mechanism of the present invention may further comprise a limb fixing member 300 coupled to the slider member 210, wherein the limb fixing member 300 comprises a limb fixing body 310 and a connecting member 320 disposed thereon, the limb fixing body 310 is used for fixing the limb, and the connecting member 320 is used for connecting the limb fixing body 310 to the slider member 210.

As shown in fig. 16 and fig. 17a-b, the limb fixation body 310 includes an outer shell 311 and an inner lining 312, the inner lining 312 may be made of a soft material such as foam, and the limb fixation body 310 further includes a plurality of fastening bands 313 for fixing the limb. The connecting member 320 may include a connecting plate 321, a shaft sleeve 322 and a rotating shaft 323, the connecting plate 321 is fixedly connected to the limb fixing body 310, the shaft sleeve 322 is disposed on the connecting plate 321, one end of the rotating shaft 323 is fitted in the shaft sleeve 322, and the other end is fitted on the sliding block assembly 210, so that the limb fixing body 310 is rotatably connected to the sliding block assembly 210, and damage during swinging is avoided.

In order to ensure that the limb fixation assembly 300 is firmly matched with the sliding assembly 210, the rotating shaft 323 is matched with the sliding assembly 210, so that the two can be firmly connected by tightening the set screw 324; of course, this may also allow the limb fixation assembly 300 to be easily replaced by simply loosening the set screws 324.

The bed with the detachable limb swinging device can be composed of a bed head, guardrails, a bed tail 64, a bed body 65, a bed board 63, a limb swinging mechanism 100, a fixed component 500 and other parts, wherein the fixed component 500 is fixed on the bed body 65 at the bed tail 64 or directly fixed on the bed tail 64, but the former has higher connection strength and higher practicability; the limb swinging mechanism 100 is detachably fitted on the fixing component 500, and when the two are fitted, the state shown in fig. 2 is formed, and the patient can swing the lower limb thereof after lying according to the process shown in fig. 3a and 3 b; when not in use, the limb swinging mechanism 100 can be separated from the fixed component 500 and independently stored, and the fixed component 500 has small volume and does not influence the use of the basic function of the bed. Of course, the various components of the bed are not required and, in the alternative, non-core components such as guardrails may be omitted. The relative structures of the limb swinging mechanism 100 and the fixation assembly 500 may be as described above and will not be described in detail herein.

In addition, the bed tail 64 can be provided with a socket 62, and the limb swinging mechanism 100 is correspondingly provided with a socket 61, so that the limb swinging mechanism 100 can finish the power-taking operation from the socket 62 through another power supply connecting wire; that is, the power connection line of the limb swing mechanism 100 is provided separately, which is advantageous for storage and use.

When the power is turned on, the slider assembly 210 performs a reset motion, and when the reset sensor detects the second magnet 4322, the reset motion stops. During limiting, the limiting sensor 4311 detects the magnet 4322 first, and the magnet should perform reversing movement, but if the electrical appliance fails to perform reversing, the electrical appliance continues to move forward until the limiting step 213 is in contact with the limiting support 4312, and mechanical limiting is performed to prevent the sliding block 211 from continuing to move forward.

In performing the limb swing, the limb swing assembly 100 can be held in one hand and the patient's foot lifted in the other hand, and then the head of the second connecting mechanism 530 of the limb swing assembly 100 is moved according to the steps in fig. 12: (a) alignment, (b) insertion, (c) downward movement, thereby completing positioning of the limb swing assembly 100. The patient's foot is then slowly lowered, the locking wheel 535 is loosened, the limb swing assembly 100 is moved to the proper position of the patient's foot and limb securing assembly 300, the locking wheel 535 is tightened, and the strap 313 firmly braces the patient's foot. The socket 61 is connected to a socket 62 in a bed end 64 by a power connection. And finally, setting the swing amplitude, namely the position of the limiting block.

Thus, the preparation work is completed and the work can be started. In operation, as shown in figures 3a and 3 b.

The limb swinging device can work in a timing mode and a manual mode:

1, timing mode: and setting the swing time, pressing a start key, and automatically stopping until the time.

2, manual mode: pressing the start key starts working, and pressing the stop key ends.

At the end, the slider assembly 210 stops at the reset position to facilitate the next operation.

After the work is finished, the power connecting wire is pulled off, the buckle belt 313 is loosened, the limb swinging component 100 is held by one hand, the patient foot is lifted by the other hand, the limb swinging component 100 is lifted to be pulled out of the fixed component 500, and finally the patient foot is put down to store the limb swinging component 100.

Claims

1. A nursing limb swinging device comprises a limb swinging mechanism (100) and a fixed component (500), wherein the limb swinging mechanism (100) and the fixed component (500) are detachably matched; it is characterized in that the preparation method is characterized in that,

the limb swinging mechanism (100) comprises a bracket (103), a sliding block component (210) and a transmission component (220); the sliding block component (210) is matched on the bracket (103) in a sliding way, and the transmission component (220) is connected with the sliding block component (210) to drive the sliding block component to reciprocate along the bracket (103);

the fixed assembly (500) further comprises a first connecting mechanism (520), the limb swinging mechanism (100) comprises a second connecting mechanism (530), and the limb swinging mechanism (100) and the fixed assembly (500) are limited in the moving direction of the sliding block assembly (210) after the second connecting mechanism (530) is matched with the first connecting mechanism (520).

2. The limb swinging device according to claim 1, wherein the limb swinging mechanism further comprises a limiting device (400), and the limiting device (400) comprises a lead screw fixing bracket (401), a lead screw (402), a guide rod (403), an adjusting motor (404), a limiting component (410) and a limiting block;

the screw rod fixing support (401) is arranged on the support (103), two ends of a screw rod (402) and two ends of a guide rod (403) are respectively matched on the two screw rod fixing supports (401), the limiting component (410) is in penetrating fit on the screw rod (402) and the guide rod (403), and the adjusting motor (404) is connected with the screw rod (402) to drive the limiting component (410) to make translational motion along the guide rod (403);

the limiting block is arranged on the sliding block component (210) or the transmission component (220), a first limiting component is arranged on the limiting component (410), a second limiting component is arranged on the limiting block, and the first limiting component and the second limiting component are matched to limit the reciprocating displacement of the limb fixing component (300) along the support.

3. The limb swinging device of claim 2, wherein the first limit component comprises a limit sensor (4311), and the second limit component comprises a magnet (4321); the limit sensor (4311) is a magnetic field sensor, and the magnet (4321) is arranged on the sliding block component (210).

4. The limb swinging device according to claim 2 or 3, wherein the first limit component further comprises a limit bracket (4312), and the second limit component comprises a limit step (213); the limiting step (213) is arranged on the sliding block component (210), and the limiting support (4312) is matched with the limiting step (213) for limiting.

5. The limb swinging device according to claim 3, wherein the limb swinging mechanism further comprises a reset sensor (109), the reset sensor (109) is arranged at the front end of the support (103), and the reset sensor (109) is a magnetic field sensor.

6. The limb pendulous device of claim 1, wherein the fixed component (500) comprises a first coupling mechanism (520), the limb pendulous device (100) comprises a second coupling mechanism (530) cooperating with the first coupling mechanism (520), the second coupling mechanism (530) cooperating with the first coupling mechanism (520) to restrain the limb pendulous device (100) and the fixed component (500) in the direction of movement of the slider component (210);

the first connecting mechanism (520) has an opening part (5221) and a clamping part (5222), and the inner diameter of the opening part (5221) is larger than that of the clamping part (5222); one end of the second connecting mechanism (530) is connected with the limb swinging mechanism (100), while the other end is provided with an outer connecting end (531) and an inner connecting end (532), and the diameter of the outer connecting end (531) is larger than that of the inner connecting end (532); the outer connecting end (531) passes through the opening part (5221) and then is displaced backwards and downwards to be matched in the clamping part (5222), so that the limb swinging mechanism (100) and the fixing component (500) are limited in the connecting direction;

preferably, the second connecting mechanism (530) further comprises a locking block (534) and a locking wheel (535), the locking block (534) is arranged on the limb swinging mechanism (100), a locking cavity (5341) is arranged in the locking block (534), and the body (533) of the second connecting mechanism (530) is matched in the locking cavity (5341); the locking wheel (535) is rotatably fitted to the locking block (534), the front end of the locking wheel is provided with the locking block, and the locking wheel (535) is rotated to lock or separate the locking block at the front end of the locking wheel with the body (533).

7. The limb pendulous device of claim 1, wherein the transmission assembly (220) comprises a transmission belt (221) and a synchronous pulley (222), the synchronous pulley (222) being disposed on the support (103);

the transmission belt (221) is an open synchronous belt, two ends of the transmission belt are connected to form an annular synchronous belt, and the sliding block assembly (210) is arranged on the transmission belt (221); the two ends of the open synchronous belt are preferably connected through a sliding block component (210);

or the transmission belt (221) is an annular synchronous belt, and the sliding block assembly (210) is fixed on the transmission belt (221).

8. The limb pendulous device of claim 1, further comprising a support member (120) provided on the support (103) such that the extremity is flexible after fitting to the limb fixation member (300); preferably, the extremity of the limb makes an angle θ of 5-30 ° with the sliding translation line.

9. The limb pendulous device of claim 1, further comprising a limb fixation assembly (300), the limb fixation assembly (300) comprising a limb fixation body (310) and a connector (320) disposed thereon, the connector (320) connecting the limb fixation body (310) to the slider assembly (210);

the connecting piece (320) further comprises a connecting plate (321), a shaft sleeve (322) and a rotating shaft (323), the connecting plate (321) is fixedly connected with the limb fixing main body (310), the shaft sleeve (322) is arranged on the connecting plate (321), one end of the rotating shaft (323) is matched in the shaft sleeve (322), and the other end of the rotating shaft (323) is matched on the sliding block component (210).

10. The bed with the detachable limb swinging device comprises a bed body (65), a bed tail (64), a bed board (63) and the limb swinging device; it is characterized in that the preparation method is characterized in that,

the limb swinging device is the nursing limb swinging device of any one of claims 1-9,

the fixed component (500) is arranged at the bed body (65) or the bed tail (64), and the limb swinging mechanism (100) is detachably matched on the fixed component.