CN216985603U - Caster braking device and lower limb rehabilitation training device - Google Patents

Abstract

The utility model relates to a caster braking device and a lower limb rehabilitation trainer, wherein the caster braking device comprises a caster component, the caster component comprises a plurality of casters, and each caster is provided with a brake; the transmission assembly comprises at least one trigger rod and at least one connecting rod, the caster wheel is connected to the trigger rod along a first direction, the trigger rod rotates to trigger or release the brake, two ends of the connecting rod are connected to the trigger rod along a second direction, and the trigger rod is connected with the connecting rod to realize power transmission; the control part is connected with the trigger rod and can drive the trigger rod to rotate under the action of external force. The application provides a truckle arresting gear can realize the quick braking and the unblock of truckle, has not only solved complicated, slow shortcoming of traditional truckle braking mode, and it is more convenient to operate simultaneously, has reduced user's the operation degree of difficulty, has improved rehabilitation's convenient type.

Description

Caster braking device and lower limb rehabilitation training device

Technical Field

The utility model relates to the field of medical instruments, in particular to a caster braking device and a lower limb rehabilitation trainer.

Background

With the increasing sport injuries brought by the popularization of the body building of Chinese people and the accompanying of a large number of disabled people and old patients, how to carry out rehabilitation training aiming at the special groups is crucial to improving the livelihood. Research shows that rehabilitation training is very helpful for recovery of limb movement function, many scientists and research institutions are dedicated to research on how to help people improve dyskinesia, the lower limb rehabilitation training device which is commonly applied at present can help people improve walking function, a driving system at each joint position drives the legs of a human body to move to realize walking, the design accords with human engineering and bionics mechanisms, and meanwhile, the comfort of a patient can be guaranteed.

Present common low limbs rehabilitation training ware can carry on subassembly such as truckle usually, is convenient for patient or operating personnel mobile device when using, but traditional truckle need through braking and unblock each truckle alone in aspects such as braking, unblock, and the operation is complicated and slow, is unfavorable for user's use.

SUMMERY OF THE UTILITY MODEL

Therefore, the caster braking device and the lower limb rehabilitation training device are needed to solve the problems that the operation of a caster structure of a traditional lower limb rehabilitation training device is complex and slow in the braking and unlocking processes.

A caster brake device comprising: the caster wheel assembly comprises a plurality of caster wheels, and each caster wheel is provided with a brake; the transmission assembly comprises at least one trigger rod and at least one connecting rod, the caster is connected to the trigger rod along a first direction, the trigger rod rotates to trigger or release the brake, two ends of the connecting rod are connected to the trigger rod along a second direction, and the trigger rod is connected with the connecting rod to realize power transmission; the control part is connected with the trigger rod and can drive the trigger rod to rotate under the action of external force.

Further, the transmission assembly further comprises a control part connecting rod, the near end of the control part connecting rod is connected with the trigger rod, the far end of the control part connecting rod is connected with the control part, and the control part connecting rod is driven by the control part to rotate and pull the trigger rod to rotate.

Further, the transmission assembly further comprises a caster connecting rod, the near end of the caster connecting rod is connected with the trigger rod, the far end of the caster connecting rod is connected with the connecting rod, and the connecting rod pulls the plurality of trigger rods to move synchronously through the caster connecting rod.

Further, the truckle subassembly still includes the truckle sleeve, the truckle sleeve with the truckle is connected, the stopper sets up in the truckle sleeve, the one end of trigger bar is passed the truckle sleeve with the stopper is connected, transmission assembly still includes the supporting seat, the other end of trigger bar with supporting seat connection, just the trigger bar can rotate around its axis.

Further, the trigger lever includes initiative trigger lever and driven trigger lever, the initiative trigger lever with the control part is connected, driven trigger lever with the initiative trigger lever passes through the connecting rod is connected.

Further, still include the bottom plate, truckle subassembly and transmission subassembly pass through the bottom plate is fixed.

Furthermore, the display device also comprises a sensing device and a display assembly, wherein the sensing device is arranged on the bottom plate, and the sensing device detects the position of the control part and sends a position signal to the display assembly.

Further, the induction device comprises a trigger, the trigger is connected with the control part, and the control part rotates to drive the trigger to trigger the induction device to send the position signal.

Further, the sensing device comprises a travel switch.

Further, a lower limb rehabilitation training device comprises the caster braking device and the mechanical arm, wherein the mechanical arm is arranged on the caster braking device.

The utility model provides a truckle arresting gear, by the truckle subassembly, drive assembly and control part constitute, the truckle subassembly includes a plurality of truckles, be equipped with the stopper on every truckle, drive assembly includes at least one trigger bar and at least one connecting rod, the truckle is connected in the trigger bar along the first direction, the both ends of connecting rod are connected in the trigger bar along the second direction, and the first direction is perpendicular with the second direction, the control part is connected the trigger bar and is driven the trigger bar and rotate under the exogenic action, and the trigger bar is connected in order to realize power transmission through the connecting rod, can trigger or release the stopper in the truckle when the trigger bar rotates, thereby realize the control to the truckle. The application provides a truckle arresting gear can realize the quick braking and the unblock of truckle, has not only solved complicated, slow shortcoming of traditional truckle braking mode, and it is more convenient to operate simultaneously, has reduced user's the operation degree of difficulty, has improved rehabilitation's convenient type.

Drawings

Fig. 1 is a perspective view of a caster braking device according to an embodiment of the present application from a first perspective;

FIG. 2 is a perspective view of a caster brake apparatus of an embodiment of the present application from a second perspective;

FIG. 3 is an enlarged partial view of section 1-1 of a first perspective view of a caster braking device in accordance with an embodiment of the present application;

fig. 4 is a partially enlarged view illustrating a connection between a connecting rod and a triggering lever in the caster braking apparatus according to an embodiment of the present invention;

fig. 5 is a perspective view of a lower limb rehabilitation training device according to an embodiment of the present application.

10, a caster assembly, 11, a caster, 12 and a caster sleeve; 20. the device comprises a transmission assembly, 21, a trigger rod, 22, a connecting rod, 23, a control part connecting rod, 24, a caster connecting rod, 25 and a supporting seat; 30. the device comprises a control part 40, a bottom plate 50, a sensing device 51, a sensing end 52 and a trigger;

1. a caster braking device 2 and a mechanical arm;

A-A, a first direction, B-B, a second direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 is a perspective view illustrating a first perspective view of a caster braking apparatus according to an embodiment of the present invention, and fig. 2 is a perspective view illustrating a second perspective view of the caster braking apparatus according to an embodiment of the present invention, where the first perspective view and the second perspective view are both front and back sides, and with reference to fig. 1 and fig. 2, the caster braking apparatus according to the present invention includes a caster assembly 10, a transmission assembly 20, and a control portion 30, where the caster assembly 10 includes a plurality of casters 11, a brake (not shown) is disposed in the caster 11, the transmission assembly 20 includes at least one trigger rod 21 and at least one connecting rod 22, the caster 11 is connected to the trigger rod 21 along a first direction a-a, the first direction a-a refers to a rotation axis direction of the caster 11, and the trigger rod 21 rotates to trigger or release the brake in the caster 11; two ends of the connecting rod 22 are connected to the trigger rod 21 along a second direction B-B, the trigger rod 21 is connected through the connecting rod 22 to realize power transmission, and the first direction A-A is perpendicular to the second direction B-B; the control part 30 is arranged along the first direction a-a and connected with the trigger rod 21, the control part 30 rotates under the action of external force to drive the trigger rod 21 to rotate, after the trigger rod 21 connected with the control part 30 rotates, the trigger rod 21 is connected through the connecting rod 22 to enable other trigger rods 21 to rotate, and the trigger rod 21 rotates to trigger or release the brake, so that the brake of the caster 11 is realized.

Optionally, the caster control device provided by the present application includes four casters 11, each caster 11 is correspondingly provided with a trigger bar 21, and two oppositely-arranged trigger bars 21 are connected through a connecting bar 22.

Another embodiment of this application, including three truckle 11, a connecting rod 22 and a triggering lever 21, three truckle 11 are the triangle-shaped mode and set up, and the truckle 11 of a triggering lever 21 through connection left and right sides, the middle part and another truckle 11 of triggering lever 21 are connected to connecting rod 22, realize the linkage of three truckle 11 through a triggering lever 21 and a connecting rod 22.

It should be noted that the first direction a-a and the second direction B-B are only preferred embodiments for illustrating the solution, and the trigger bar, the connecting rod, the control portion, etc. are not limited to this assembling direction, and other types of arrangements are allowed by the present application as long as the solution provided by the present application can be realized.

When the caster 11 needs to stop rotating in use, a user rotates the control part 30 to enable the trigger rod 21 to rotate, the trigger rod 21 can trigger the brake to lock the caster 11 after rotating, and the oppositely arranged trigger rods 21 are connected through the connecting rod 22, so that the plurality of casters 11 in front and back positions are linked together, and a locking function is synchronously realized; when the caster 11 needs to be opened, the user reversely rotates the control unit 30 to drive the trigger lever 21 to reversely rotate, and the brake can be released after the trigger lever 21 reversely rotates, so that the caster 11 is unlocked. Alternatively, the control section 30 includes, but is not limited to, a control panel, a foot pedal, and the like. Adopt this kind of structure type's truckle arresting gear, the user only needs operation control portion can accomplish the locking or the unblock of truckle, and the operation mode includes but not limited to trample etc. easy operation, and the response is swift, has greatly improved user's convenience.

In one embodiment of the present application, the trigger levers 21 are arranged in groups, and specifically include a driving trigger lever and a driven trigger lever, the driving trigger lever is connected to the control portion 30, and the driving trigger lever is driven to rotate by the rotation of the control portion 30; the driving trigger rod and the driven trigger rod are connected through a connecting rod 22, and when the control part 30 rotates to drive the driving trigger rod to rotate, the driving trigger rod and the driven trigger rod can realize synchronous motion through the connecting rod 22.

Fig. 3 is a partially enlarged perspective view 1-1 of a first perspective view of a caster braking apparatus according to an embodiment of the present application, and as shown in fig. 1-3, the caster braking apparatus further includes a base plate 40, and the caster assembly 10 and the transmission assembly 20 are fixed by the base plate 40. The transmission assembly 20 further comprises a control portion connecting rod 23, a caster connecting rod 24 and a supporting seat 25, the control portion connecting rod 23 is arranged along the radial direction of the trigger rod 21, the near end of the control portion connecting rod 23 is connected with the trigger rod 21, if the control portion connecting rod is welded on the trigger rod 21, or the control portion connecting rod is integrally formed with the trigger rod 21, the far end of the control portion connecting rod is connected with the control portion 30, an operator rotates the control portion 30, the control portion 30 drives the control portion connecting rod 23 to rotate, and then the control portion connecting rod 23 drives the trigger rod 21 to rotate, so that the brake is triggered or released to lock or unlock the caster 11. It should be noted that, the above-mentioned proximal end or distal end is relative to the trigger rod 21, and the control portion 30 can be disposed at a certain distance from the trigger rod 21 by adjusting the length of the control portion connecting rod 23, so that when the control portion 30 is rotated, the trigger rod 21 can obtain a proper torque to rotate the trigger rod 21.

Further, the transmission assembly 20 further includes a caster link 24, the caster link 24 is disposed along a radial direction of the trigger bar 21, a proximal end of the caster link 24 is fixedly connected to the trigger bar 21, a distal end of the caster link 24 is fixedly connected to the connection bar 22, on one hand, the connection bar 22 can pull a plurality of trigger bars 21 through the caster link 24 to achieve synchronous movement, on the other hand, the connection bar 22 and the trigger bar 21 are staggered by the caster link 24, so as to avoid interference between movement of the connection bar and the trigger bar, and facilitate structural layout, and simplify equipment, for example, the trigger bar 21 is disposed on one side of the base plate 40, and the connection bar 22 is disposed on the other side of the base plate 40, specifically, as shown in fig. 4, a partial enlarged view is provided for connection between the connection bar and the trigger bar in the caster braking apparatus according to an embodiment of the present application. The operation principle of the caster link 24 is described above with reference to the control unit link 23, and will not be described here.

Further, the caster assembly 10 further includes a caster sleeve 12, the caster sleeve 12 is connected to the caster 11, and the transmission assembly 20 further includes a support base 25, and the support base 25 is fixed on the bottom plate 40. The caster sleeve 12 is internally provided with a hollow cavity, the brake on the caster 11 is arranged in the caster sleeve 12, one end of the trigger rod 21 penetrates into the caster sleeve 12 and abuts against the brake, the other end of the trigger rod 21 is fixed on the bottom plate 40 through the supporting seat 25, and the trigger rod 21 can rotate around the axis (the first direction A-A) of the trigger rod. In order to facilitate the rotation of the trigger rod 21 around its axis, the support seat 25 and the trigger rod 21 may be fixed by a bearing.

In one embodiment of the present application, the brake includes a cam mechanism and a braking member, the triggering rod 21 is clamped with the cam mechanism, and the triggering rod 21 rotates to drive the cam mechanism to rotate. Alternatively, the trigger lever 21 has a hexahedral structure, and the cam mechanism is centrally provided with a six-sided hole, into which the trigger lever 21 is inserted to drive the cam mechanism to rotate.

According to another embodiment of the application, the end part of the trigger rod 21 is circumferentially provided with a protrusion, the center of the cam mechanism is provided with a groove, and the cam mechanism is driven to rotate by the trigger rod 21 through clamping of the protrusion and the groove.

The cam mechanism is connected with the brake piece through the push rod, when the cam mechanism rotates, the brake piece can be driven to move, and the caster 11 is locked through the brake piece. According to the embodiment of the application, the cam mechanism rotates forwards to push the brake piece to swing upwards or downwards, the inner ring of the caster 11 is provided with the rack, and the end part of the brake piece is clamped into the rack to lock the caster 11 when the brake piece swings. Conversely, the braking member moves away from the rack to release the castor 11 when the cam mechanism is reversed, thereby facilitating the operation of the castor 11. Since the brake structure of the caster belongs to the prior art, no further description is provided herein.

It should be noted that the engagement between the trigger lever and the cam mechanism in the present application is mainly to drive the cam mechanism to rotate through the trigger lever, and therefore, the external profile structure of the trigger lever is not limited to the hexahedral structure described above, and other types of structures are allowed in the present application as long as the function can be achieved.

In another embodiment of the present application, in order to better facilitate the user to know the braking condition of the caster, the caster braking device provided in the present application further includes a sensing device 50 and a display component (not shown), the sensing device 50 is fixed on the bottom plate 40, and a sensing end 51 is disposed on the sensing device, and the sensing end 51 is used for detecting the rotation position of the control portion 30 and sending a position signal to the display component for displaying. Alternatively, the sensing device 50 is set to send a position signal to the display module when the control unit 30 rotates to the locking position of the caster 11, and not send a signal when the control unit does not rotate to the locking position, so that the user can know the state of the caster 11 and the safety of the device is improved.

In another embodiment of the present application, the sensing device 50 is a travel switch.

Further, the device further comprises a trigger 52, the trigger 52 is connected to the control portion 30, and the control portion 30 rotates to drive the trigger 52 to trigger the sensing device 50 to send the position signal. In one embodiment of the present application, the trigger 52 is connected to the control portion 30 through the trigger rod 21, and the trigger 52 rotates synchronously with the trigger rod 21 and can move close to or away from the sensing end 51 to trigger the sensing device 50. Optionally, the trigger 52 rotates with the trigger rod 21 to abut against the sensing end 51, or moves along the sensing end 51 for a preset distance or disengages from the sensing end 51, and the sensing device 50 is triggered to send a position signal to the display assembly. Those skilled in the art can set an appropriate manner according to actual situations to realize the triggering of the trigger 52 and the sensing terminal 51.

In another embodiment of the present application, the trigger 51 is integrally formed with the control portion link 23, thereby simplifying the product structure and reducing the production cost.

The application provides a truckle arresting gear, by the truckle subassembly, drive assembly and control part are constituteed, the truckle subassembly includes a plurality of truckles, be equipped with the stopper on every truckle, drive assembly includes at least one triggering lever and at least one connecting rod, the truckle is connected in the triggering lever along the first direction, the both ends of connecting rod are connected in the triggering lever along the second direction, and the first direction is perpendicular with the second direction, the control part is connected the triggering lever and is driven the triggering lever to rotate under the exogenic action, and the triggering lever passes through the connecting rod and connects in order to realize power transmission, can trigger or release the stopper in the truckle when the triggering lever rotates, thereby realize the control to the truckle. The application provides a truckle arresting gear can realize the quick braking and the unblock of truckle, has not only solved complicated, slow shortcoming of traditional truckle braking mode, and it is more convenient to operate simultaneously, has reduced user's the operation degree of difficulty, has improved rehabilitation's convenient type.

Fig. 5 shows a perspective view of the lower limb rehabilitation training device according to an embodiment of the present application, and the lower limb rehabilitation training device provided by the present application includes the caster braking device 1 described above, and further includes the mechanical arm 2, and the mechanical arm 2 is disposed on the caster braking device 1. Multiple rehabilitation training components can be integrated on the mechanical arm 2, and the mechanical arm can be moved through the caster braking device 1, so that the operation of a user is facilitated. The technical effect is similar to that of the caster braking device 1 described above, and will not be described herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A caster brake device, comprising:

the caster wheel assembly comprises a plurality of caster wheels, and each caster wheel is provided with a brake;

the transmission assembly comprises at least one trigger rod and at least one connecting rod, the caster is connected to the trigger rod along a first direction, the trigger rod rotates to trigger or release the brake, two ends of the connecting rod are connected to the trigger rod along a second direction, and the trigger rod is connected with the connecting rod to realize power transmission;

the control part is connected with the trigger rod and can drive the trigger rod to rotate under the action of external force.

2. The caster brake of claim 1, wherein the transmission assembly further comprises a control link, a proximal end of the control link being connected to the trigger bar and a distal end of the control link being connected to the control, the control link being driven by the control to rotate and pull the trigger bar to rotate.

3. The caster brake apparatus of claim 1, wherein the transmission assembly further comprises a caster link, a proximal end of the caster link being connected to the trigger bar and a distal end of the caster link being connected to the connecting bar, the connecting bar drawing the plurality of trigger bars through the caster link in a synchronized motion.

4. The caster braking apparatus as defined in claim 1, wherein said caster assembly further comprises a caster sleeve, said caster sleeve is connected to said caster, said brake is disposed in said caster sleeve, one end of said trigger rod passes through said caster sleeve and is connected to said brake, said transmission assembly further comprises a supporting seat, the other end of said trigger rod is connected to said supporting seat, and said trigger rod can rotate around its axis.

5. The caster brake apparatus as defined in claim 1, wherein said trigger lever includes a master trigger lever and a slave trigger lever, said master trigger lever being connected to said control portion, said slave trigger lever and said master trigger lever being connected by said connecting rod.

6. The caster brake apparatus of any one of claims 1 to 5, further comprising a base plate, the caster assembly and the transmission assembly being secured by the base plate.

7. The caster brake of claim 6, further comprising a sensing device disposed on the base plate and a display assembly, the sensing device detecting the position of the control portion and sending a position signal to the display assembly.

8. The caster braking device of claim 7, further comprising a trigger, wherein the trigger is connected to the control portion, and the control portion rotates to drive the trigger to trigger the sensing device to send the position signal.

9. The caster brake of claim 7, wherein said sensing means comprises a travel switch.

10. A lower limb rehabilitation training aid, comprising the caster braking device as claimed in any one of claims 1 to 9, and a mechanical arm provided on the caster braking device.

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