CN214208838U - A leg rest mechanism - Google Patents
A leg rest mechanism Download PDFInfo
- Publication number
- CN214208838U CN214208838U CN202022031978.8U CN202022031978U CN214208838U CN 214208838 U CN214208838 U CN 214208838U CN 202022031978 U CN202022031978 U CN 202022031978U CN 214208838 U CN214208838 U CN 214208838U
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- Prior art keywords
- leg rest
- passage
- movable member
- leg
- guide block
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- 238000009434 installation Methods 0.000 abstract description 3
- 244000309466 calf Species 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
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Abstract
本实用新型公开一种腿托机构，其中所述腿托机构包括一安装主体、一腿托支撑架、一腿托和一调整组件，其中所述腿托支撑架的一端被安装于所述安装主体，其中所述调整组件包括一活动件，其中所述活动件被可沿其延伸方向平移地限位于所述腿托支撑架的另一端，所述腿托被安装于所述活动件。
The utility model discloses a leg rest mechanism, wherein the leg rest mechanism comprises an installation body, a leg rest support frame, a leg rest and an adjustment component, wherein one end of the leg rest support frame is mounted on the installation The main body, wherein the adjustment assembly includes a movable piece, wherein the movable piece is movably limited to the other end of the leg rest support frame along its extending direction, and the leg rest is mounted on the movable piece.
Description
Technical Field
The invention relates to the field of rehabilitation equipment, in particular to a leg support mechanism.
Background
Medical instruments are increasingly being used today to assist in rehabilitation training of users. The bone structure of different parts of the human body is different. Thus requiring the assistance of medical instruments of different configurations. The lower leg is an important part of the human body, and directly determines whether the human body can normally walk.
Rehabilitation devices are widely used to assist users in rehabilitation training. The rehabilitation device is also commonly referred to as a rehabilitation training robot. The leg rest mechanism in the rehabilitation apparatus is mounted on the rehabilitation apparatus main body. And it includes a mechanism body, a leg rest support frame and a leg rest. The mechanism body is mounted on a rehabilitation device. One end of the leg support frame is fixed on the rehabilitation equipment. The leg rest is mounted at the other end of the leg rest support frame. The leg rest is generally used to fix the leg of the user so that the movement of the leg of the user is restricted, thereby preventing the leg of the user from moving excessively to aggravate an injury.
The leg rest mechanism in the prior art can fix the lower leg of the user to a certain extent. For example, patent publication No. CN208910866U employs a non-adjustable position calf strap to secure the wearer's calf to the exoskeleton, and the strap is non-rotatable with the rotation of the calf. Thus, the comfort is poor and the looseness is easy. The transmission device, the lower limb rehabilitation exoskeleton and the exoskeleton robot disclosed in patent No. CN209286071U adopt a scheme of a lower leg support plate. The lower leg fixing piece is connected with the lower leg so as to fix the lower leg. The structure has larger volume and can not move along with the rotation of the shank.
Usually, the lower legs of different users are different in structure, and accordingly, the axes of the lower legs of the users are different in width distance relative to the mechanism main body after the lower legs are fixed. However, after the leg support in the prior art fixes the leg of the user, the width distance between the axis where the lower leg of the user is located and the mechanism main body cannot be adjusted, so that the leg support mechanism in the prior art is limited in the number of users to which the leg support mechanism can be applied. If the width distance between the axis where the user lower leg is located and the mechanism main body cannot be matched with the body type of the user lower leg, after the user lower leg is fixed by the leg support, the user lower leg always receives inward or outward offset force applied to the lower leg by the leg support, and the force needs to be balanced by the user lower leg.
Furthermore, the straps used to bind the user's lower leg are also susceptible to loosening and falling off due to this biasing force. This also causes inconvenience to the user.
On the other hand, the leg support in the prior art needs to be used to fix the lower leg of the user. After the lower leg of the user is fixed, the user needs to move and rotate during rehabilitation exercise. However, the leg support in the prior art cannot rotate, so that when the lower leg of the user rotates, on one hand, the lower leg of the user feels uncomfortable, and on the other hand, a bandage for binding the lower leg of the user is easy to loosen.
Disclosure of Invention
An object of the present invention is to provide a leg rest mechanism, wherein a leg rest of the leg rest mechanism is rotatably mounted on a leg rest support frame so that the leg rest can be rotated together by a predetermined angle when a user's lower leg is rotated, thereby preventing discomfort of the user's leg.
An object of the present invention is to provide a leg rest mechanism in which the distance of a leg rest of the leg rest mechanism with respect to a mechanism main body of the leg rest mechanism is set adjustable, thereby enabling the leg rest mechanism to be suitable for users having different body types of lower legs.
It is another object of the present invention to provide a leg rest mechanism, wherein the leg rest of the leg rest mechanism is configured to be used to secure a strap that is not easily loosened when the strap is used to secure a user's lower leg.
To achieve at least one of the above objects, the present invention provides a leg rest mechanism, wherein the leg rest mechanism comprises:
a mounting body;
a leg rest support frame, wherein one end of the leg rest support frame is mounted to the mounting body;
a leg rest; and
an adjustment assembly, wherein the adjustment assembly includes a movable member, wherein the movable member is translationally restrained at the other end of the leg rest support frame along an extension direction thereof, and the leg rest is mounted to the movable member.
According to an embodiment of the present invention, the movable member is rotatably connected to the leg rest support frame.
According to an embodiment of the present invention, the adjusting assembly includes at least one positioning member, the movable member has a rotating end and a mounting end, the movable member forms a sliding channel between the rotating end and the mounting end, the movable member has at least two circumferential grooves spaced apart from each other on an outer wall along a circumferential direction of the movable member, one end of the circumferential groove is disposed to communicate with the sliding channel, the other end of the circumferential groove is a closed end, a rotating channel is disposed in a direction coaxial with an extending direction of the movable member at one end of the leg rest support frame, the leg rest support frame has at least one limiting channel disposed in a direction perpendicular to the extending direction of the rotating channel, the limiting channel is disposed to communicate with the rotating channel, the rotating end of the movable member is inserted into the rotating channel, and after the rotating end of the movable member is disposed to penetrate into the rotating channel, one on the moving part the circumference groove with spacing passageway aligns, the setting element is set up can follow the direction that spacing passageway extends inserts with removing in the spacing passageway, and after the setting element was inserted spacing passageway, the tip of setting element inserts in the circumference groove to the restriction the moving part is followed the extending direction of moving part slides.
According to an embodiment of the invention, the positioning element is implemented as a pin.
According to an embodiment of the present invention, the plurality of circumferential grooves are provided at the same interval on the outer wall of the circumferential direction of the circumferential groove of the movable member.
According to an embodiment of the present invention, the leg rest support is rotatably mounted to the mounting body, wherein the leg rest mechanism includes an openable mechanism by which the leg rest support is unlockably locked to the mounting body, so that the lateral portion of the leg rest support can be switched between an unlocked state in which it is freely rotatable and a locked state in which it is locked.
According to an embodiment of the present invention, the lockable mechanism includes a locking tongue, a locking groove, a guide block, and an elastic member, the locking groove is provided in the mounting body, the leg rest support has a lateral portion and an extending portion integrally extending from one end of the lateral portion to form an L shape together with the lateral portion, wherein the rotation passage and the restriction passage are provided in the extending portion, wherein the lateral portion is provided with a locking passage extending from an end of the lateral portion in a direction in which the lateral portion extends, the lateral portion forms a force application passage in a direction perpendicular to a direction in which the locking passage extends, the elastic member is provided in a compressed manner at an inner wall of the locking passage and one end of the locking tongue, and when the leg rest support rotates by a predetermined angle to align the force application passage with the locking groove, the spring bolt is movably pressed into the locking channel by the elastic piece, and when the spring bolt is driven by the guide block to compress the elastic piece, the spring bolt slides out of the locking groove to allow the leg support bracket to rotate relative to the mounting main body.
According to an embodiment of the present invention, a through hole is disposed in the middle of the lock tongue, wherein a stressed inclined surface is formed on a side wall of the lock tongue defining the through hole, the guide block has a pressing inclined surface, the guide block is disposed to penetrate the through hole, and the pressing inclined surface of the guide block is attached to the stressed inclined surface, so that when the guide block is pressed, the stressed inclined surface of the lock tongue is pressed by the pressing inclined surface of the guide block to press the elastic member, and further, the elastic member is compressed.
Further objects and advantages of the invention will be fully apparent from the ensuing description.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.
Drawings
Fig. 1 shows a perspective view of a leg rest mechanism of the present invention.
Fig. 2 shows an exploded view of the leg rest mechanism of the present invention.
Figure 3 shows an angled cross-sectional view of the leg rest mechanism of the present invention.
Fig. 4 shows a schematic view of the sliding member of the leg rest mechanism of the present invention when it is confined to the leg rest support frame.
Fig. 5 shows a schematic view of the sliding member of the leg rest mechanism of the present invention being slidable relative to the leg rest support frame.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
A leg rest mechanism according to a preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 5 of the specification, wherein the leg rest mechanism can be installed in a rehabilitation device for fixing the lower leg of a user to prevent the user's lower leg from being injured by excessive movement.
The leg rest mechanism includes a mounting body 10, a leg rest support frame 20, and a leg rest 30. The mounting body 10 is configured to be secured to a rehabilitation device. One end of the leg rest support 20 is mounted to the mounting body 10.
The leg rest mechanism further includes an adjustment assembly 40. The adjustment assembly 40 includes a movable member 41. The leg support 30 is fixed to the movable member 41, wherein the movable member 41 is translatably limited at the other end of the leg support bracket 20 along the extending direction thereof, so that the distance between the leg support 30 fixed to the movable member 41 and the mounting body 10 can be adjusted.
It can be understood that, since the distance of the leg rest 30 relative to the mounting body 10 can be adjusted, when the size of the lower leg of the user is different, the distance between the axis of the lower leg of the user fixed to the leg rest 30 and the mounting body 10 can be adjusted by translating the movable member 41, so that the leg rest mechanism is suitable for users with different lower leg sizes.
Specifically, the movable member 41 has a rotating end 4101 and a mounting end 4102. The movable element 41 forms a slide groove 4103 between the rotation end 4101 and the attachment end 4102. The movable element 41 has at least two circumferential grooves 4104 provided at intervals on an outer wall along the circumferential direction of the movable element 41. One end of the circumferential groove 4104 is provided to communicate with the slide groove 4103. The other end of the circumferential groove 4104 is a closed end.
The adjustment assembly 40 further includes at least one positioning member 42. One end of the leg support bracket 20 is provided with a rotating channel 201 in the direction coaxial with the extending direction of the movable member 41. At least one limit channel 202 is arranged on the leg support frame 20 in a direction perpendicular to the extending direction of the rotating channel 201. The stopper passage 202 is provided in communication with the rotation passage 201.
After the rotating end 4101 of the movable element 41 is inserted into the rotating channel 201, and the rotating end 4101 of the movable element 41 is disposed to be inserted into the rotating channel 201, one of the circumferential grooves 4104 of the movable element 41 is aligned with the limit channel 202.
The positioning element 42 is movably inserted into the limiting channel 202 along the extending direction of the limiting channel 202, and after the positioning element 42 is inserted into the limiting channel 202, the end of the positioning element 42 is inserted into the circumferential groove 4104 to limit the sliding of the movable element 41 along the extending direction of the movable element 41.
Further, since the circumferential groove 4104 is provided in the movable element 41, the movable element 41 can pivot with respect to the leg rest support bracket 20 with the extending direction of the movable element 41 as a rotation axis.
Therefore, when the lower leg of the user is fixed to the leg rest 30, if the distance between the leg rest 30 with respect to the mounting body 10 needs to be adjusted, the leg rest 30 fixed to the movable member 41 can be rotated until the slide groove 4103 is aligned with the positioning member 42. Subsequently, the leg rest 30 is pushed and pulled in the axial direction, so that the movable element 41 can be driven to slide in the axial direction relative to the mounting body 10, so that the positioning element 42 is moved out of the circumferential groove 4104, and the movable element 41 can slide in the extending direction of the movable element 41 relative to the leg rest support frame 20. When the movable element 41 slides a predetermined distance and is aligned with the other circumferential groove 4104, the leg holder is rotated again, so that the positioning element 42 is inserted into the other circumferential groove 4104 aligned with the limit passage 202 again, so that the movable element 41 is maintained at the adjusted position. The distance between the leg rest 30 mounted on the movable piece 41 with respect to the mounting body 10 can be adjusted and defined.
Thus, the leg rest mechanism can be applied to users with different lower leg body types. Further, since the leg rest 30 can be adjusted according to the body shape of the lower leg of the user, the leg rest 30 can be applied to more users, and the lower leg of the user does not receive the offset force of the leg rest 30 when the user uses the leg rest mechanism.
On the other hand, when the lower leg of the user rotates, since the leg support 30 can be rotated by the movable member 41 of the adjustment assembly 40, the leg support 30 can rotate synchronously with the lower leg of the user, so that the user has a better experience.
It is worth mentioning that the circumferential grooves 4104 on the movable element 41 are arranged at equal intervals. It can be understood that the adjustment assembly 40 can adjust the distance between the leg rest 30 and the mounting body 10 by the engagement of the positioning member 42 with the circumferential groove 4104 provided at different positions on the movable member 41 from the rotating end 4101.
Preferably, the adjustment assembly 40 further includes a sliding bearing 43. The sliding bearing 43 is sleeved in the rotating passage 201. The movable member 41 is fitted inside the sliding bearing 43 to reduce resistance during sliding of the movable member 41.
Preferably, in the present invention, the positioning member 42 may be implemented as a pin.
The leg rest support 20 has a transverse portion 21 and an extension portion 22. The extension portion 22 integrally extends from one end of the transverse portion 21 to form an L shape together with the transverse portion 21. The extension 22 forms the rotation passage 201 and the limit passage 202. The transverse portion 21 is rotatably mounted to the mounting body 10 so that when the lower leg of the user needs to be removed from the legrest mechanism, it is only necessary to rotate the legrest support 20 relative to the mounting body 10.
The leg rest mechanism also includes an unlatchable mechanism 50. The leg rest support 20 is releasably locked to the mounting body 10 by the lockable mechanism 50 so that the lateral portion 21 of the leg rest support 20 can be switched between an unlocked state of free rotation and a locked state of locked.
Specifically, the lockable mechanism 50 includes a latch 51, a lock groove 52, a guide 53, and an elastic member 54. The lateral portion 21 is provided with a locking passage 2101 formed extending from an end of the lateral portion 21 in a direction in which the lateral portion 21 extends. The lateral portion 21 forms an urging passage 2102 in a direction perpendicular to the extending direction of the lock passage 2101. When the force applying passage 2102 is aligned with the latching groove 52, the latch tongue 51 is movably inserted into the latching passage 2101. The elastic member 54 is disposed in a compressed manner at an inner wall of the latching passage 2101 and an end of the latch 51. The locking groove 52 is provided to the mounting body 10.
When the leg rest support bracket 20 is rotated by a predetermined angle to align the latching passage 2101 with the latching groove 52, the latch 51 is subjected to the restoring force of the elastic member 54 to press-insert the guide block 53 into the latching groove 52. After the guide block 53 is operated, the latch tongue 51 moves out of the latch groove 52 and simultaneously compresses the elastic member 54.
Specifically, a perforation 5101 is disposed in the middle of the latch 51. The side wall of the latch tongue 51 defining the perforation 5101 forms a force-bearing inclined surface 5102. The guide block 53 has an abutting inclined surface 5301. The guide block 53 is disposed to penetrate the through hole 5101, and the pressing inclined surface 5301 of the guide block 53 is attached to the force-receiving inclined surface 5102, so that when the guide block 53 is pressed, the force-receiving inclined surface 5102 of the latch tongue 51 is pressed by the pressing inclined surface 5301 of the guide block 53 to press the elastic member 54, so that the elastic member 54 is compressed, and at the same time, the latch tongue 51 moves out of the lock groove 52, so that the leg rest support 20 can freely rotate relative to the mounting body 10. When the force application channel 2102 is aligned with the lock groove 52 and the pressure applied to the guide block 53 is removed, the elastic member 54 drives the latch 51 to be inserted into the lock groove 52 by its restoring force, so that the leg rest support 20 can be fixed with respect to the installation body 10.
It will be appreciated by persons skilled in the art that the embodiments of the invention shown in the foregoing description are by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (8)
1. A leg rest mechanism, wherein the leg rest mechanism comprises:
a mounting body;
a leg rest support frame, wherein one end of the leg rest support frame is mounted to the mounting body;
a leg rest; and
an adjustment assembly, wherein the adjustment assembly includes a movable member, wherein the movable member is translationally restrained at the other end of the leg rest support frame along an extension direction thereof, and the leg rest is mounted to the movable member.
2. The leg rest mechanism of claim 1, wherein the movable member is pivotally connected to the leg rest support bracket.
3. The leg rest mechanism according to claim 1 or 2, wherein the adjustment member includes at least one positioning member, the movable member has a rotation end and a mounting end, the movable member forms a chute between the rotation end and the mounting end, the movable member has at least two circumferential grooves provided at intervals on an outer wall along a circumferential direction of the movable member, one end of the circumferential groove is provided to communicate with the chute, the other end of the circumferential groove is a closed end, one end of the leg rest support frame is provided with a rotation passage in a direction coaxial with an extending direction of the movable member, the leg rest support frame is provided with at least one limiting passage in a direction perpendicular to the extending direction of the rotation passage, the limiting passage is provided to communicate with the rotation passage, the rotation end of the movable member is inserted into the rotation passage, and the rotation end of the movable member is provided to be inserted into the rotation passage, one on the moving part the circumference groove with spacing passageway aligns, the setting element is set up can follow the direction that spacing passageway extends inserts with removing in the spacing passageway, and after the setting element was inserted spacing passageway, the tip of setting element inserts in the circumference groove to the restriction the moving part is followed the extending direction of moving part slides.
4. A leg rest mechanism as claimed in claim 3, wherein the locating member is embodied as a pin.
5. The leg rest mechanism according to claim 3, wherein a plurality of the circumferential grooves are provided at equal intervals on an outer wall of the circumferential direction of the circumferential groove of the movable member.
6. The leg rest mechanism of claim 3, wherein the leg rest support is rotatably mounted to the mounting body, wherein the leg rest mechanism includes an openable lock mechanism by which the leg rest support is releasably locked to the mounting body.
7. The leg rest mechanism according to claim 6, wherein the unlatching mechanism includes a latch piece, a lock groove, a guide block, and an elastic member, the lock groove is provided in the mounting body, the leg rest support has a lateral portion and an extended portion integrally extended from one end of the lateral portion to form an L shape together with the lateral portion, wherein the rotation passage and the restriction passage are provided in the extended portion, wherein the lateral portion is provided with a lock passage extended from an end of the lateral portion in a direction in which the lateral portion extends, the lateral portion forms a force application passage in a direction perpendicular to an extending direction of the lock passage, the elastic member is provided in a compressed manner at an inner wall of the lock passage and one end of the latch piece, and when the leg rest support is rotated by a predetermined angle to align the force application passage with the lock groove, the spring bolt is movably pressed into the locking channel by the elastic piece, and when the spring bolt is driven by the guide block to compress the elastic piece, the spring bolt slides out of the locking groove to allow the leg support bracket to rotate relative to the mounting main body.
8. The leg rest mechanism of claim 7, wherein a through hole is disposed in the middle of the latch, wherein a force-receiving inclined surface is formed on a side wall of the latch defining the through hole, the guide block has a pressing inclined surface, the guide block is disposed to penetrate the through hole, and the pressing inclined surface of the guide block is attached to the force-receiving inclined surface, so that when the guide block is pressed, the force-receiving inclined surface of the latch is pressed by the pressing inclined surface of the guide block to press the elastic member, thereby compressing the elastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031978.8U CN214208838U (en) | 2020-09-16 | 2020-09-16 | A leg rest mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031978.8U CN214208838U (en) | 2020-09-16 | 2020-09-16 | A leg rest mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214208838U true CN214208838U (en) | 2021-09-17 |
Family
ID=77673560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022031978.8U Withdrawn - After Issue CN214208838U (en) | 2020-09-16 | 2020-09-16 | A leg rest mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214208838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112245218A (en) * | 2020-09-16 | 2021-01-22 | 上海傅利叶智能科技有限公司 | Leg support mechanism |
-
2020
- 2020-09-16 CN CN202022031978.8U patent/CN214208838U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112245218A (en) * | 2020-09-16 | 2021-01-22 | 上海傅利叶智能科技有限公司 | Leg support mechanism |
| CN112245218B (en) * | 2020-09-16 | 2024-12-13 | 上海傅利叶智能科技有限公司 | A leg support mechanism |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210917 Effective date of abandoning: 20241213 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210917 Effective date of abandoning: 20241213 |