CN214450433U

CN214450433U - Leg support device

Info

Publication number: CN214450433U
Application number: CN202120245985.XU
Authority: CN
Inventors: 叶耀强
Original assignee: Dongguan Veituoli Auto Parts Co ltd
Current assignee: Dongguan Veituoli Auto Parts Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-22
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a leg support device, which comprises a base arranged at the bottom of a chair, a folding framework arranged on the base, and a support plate arranged on the folding framework; the connecting frame and the connecting rod assembly are connected between the base and the supporting plate and can be rotatably arranged on the base; one end of the connecting frame, which is far away from the base, is rotatably connected with the side edge of the supporting plate, the connecting rod assembly is rotatably connected with the bottom surface of the supporting plate, and the connecting rod assembly can be driven to fold or unfold so as to fold or unfold the supporting plate; wherein, the connecting rod assembly is provided with a driving piece, and a driving shaft of the driving piece is connected with a screw rod; the base is provided with a guide cylinder, a threaded hole is formed in the guide cylinder, and the screw rod penetrates through the threaded hole and is in threaded connection with the threaded hole. The utility model provides a leg holds in palm device is used for driving the folding skeleton that the backup pad struts and receive to close through the driving piece drive, has realized that the automation that the car seat leg held in the palm struts and receives to close for the use that the car seat leg held in the palm is more convenient.

Description

Leg support device

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a leg holds in palm device.

Background

With the increasing of economic level and national standard of living, automobiles are gradually popularized, the requirements of consumers on the automobiles are not only limited to automobile performance but also gradually increased, and the seats are an important factor for people to intuitively know the comfort level.

In order to improve the comfort of the automobile seat, besides the structural improvement of the seat, many manufacturers add leg supports for passengers to put legs at the bottom of the seat, but the existing leg supports are often required to be manually unfolded and retracted, and the use is troublesome.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a leg holds in palm device solves the leg among the prior art and holds in the palm the problem that often needs manual expansion and withdraw.

In order to achieve the above object, the present invention provides the following technical solutions:

a leg support device comprises a base, a folding framework and a supporting plate, wherein the base is used for being installed at the bottom of a seat;

the folding skeleton includes:

the connecting frame and the connecting rod assembly are connected between the base and the supporting plate and can be rotatably arranged on the base; one end of the connecting frame, which is far away from the base, is rotatably connected with the side edge of the supporting plate, the connecting rod assembly is rotatably connected with the bottom surface of the supporting plate, and the connecting rod assembly can be driven to fold or unfold so as to fold or unfold the supporting plate;

the connecting rod assembly is provided with a driving piece, and a driving shaft of the driving piece is connected with a screw rod; the base is provided with a guide cylinder, a threaded hole is formed in the guide cylinder, and the screw rod penetrates through the threaded hole and is in threaded connection with the threaded hole.

Optionally, a limiting groove is formed in the base, and the limiting groove is arc-shaped; the connecting frame is provided with a stroke limiting piece, and the stroke limiting piece is limited in the limiting groove in a sliding manner.

Optionally, the connecting frame is rotatably mounted on the base through a first pin.

Optionally, the connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod which are connected end to end, one end of the first connecting rod is rotatably connected with the base through a second pin shaft, and one end of the third connecting rod is rotatably connected with the bottom surface of the supporting plate.

Optionally, the second connecting rod and the connecting frame are arranged in a staggered manner, and the second connecting rod and the connecting frame are rotatably connected through a third pin shaft.

Optionally, a cross beam is arranged on the second connecting rod, and the driving piece is mounted on the cross beam.

Optionally, a roller assembly is arranged on the second connecting rod.

Optionally, the base is mounted to the seat bottom by a mounting assembly, the mounting assembly including a removable mount removably connected to the seat bottom.

Optionally, the mounting assembly further comprises an adjustment assembly connected between the base and the detachable mount;

the adjustment assembly includes:

the first adjusting seat is movably connected with the base and can be driven to slide along a first direction relative to the base;

the second adjusting seat is movably connected with the first adjusting seat and can be driven to slide along a second direction relative to the first adjusting seat, and the second direction is perpendicular to the first direction;

the detachable mounting piece is movably arranged on the second adjusting seat, and can be driven to slide along a first direction relative to the second adjusting seat;

optionally, hinges are arranged on the connecting frame, and each hinge comprises a first hinge connected with the connecting frame and a second hinge connected with the supporting plate;

still include the baffle, the baffle is installed on the link.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a leg holds in palm device is used for driving the folding skeleton that the backup pad expanded and receive to close through the driving piece drive, has realized that the automation that the car seat leg held in the palm expandes and receive to close for the use that the car seat leg held in the palm is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of a combined structure of a leg rest device and a seat provided by the present invention;

fig. 2 is a schematic structural view of a leg rest device provided by the present invention;

fig. 3 is a schematic view of a partial structure of a leg rest device provided by the present invention;

fig. 4 is a schematic structural view of a leg rest device provided by the present invention in another state.

In the above figures: 100. a seat; 11. supporting a tube; 10. a base; 101. a limiting groove; 20. folding the framework; 21. a connecting frame; 211. a first pin shaft; 212. a travel limit; 221. a first hinge; 222. a second hinge; 231. a first link; 2311. a second pin shaft; 232. a second link; 2321. a third pin shaft; 2322. a cross beam; 233. a third link; 234. a fixed seat; 24. a drive member; 241. a screw; 25. a roller; 26. a guide cylinder; 30. a support plate; 40. a baffle plate; 50. mounting the component; 51. a first adjusting seat; 511. an adjusting screw; 512. a first regulating groove; 513. a second regulating groove; 52. adjusting the connecting rod; 521. locking the nut; 53. a second adjusting seat; 531. a third regulating groove; 54. a removable mounting.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that 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. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of the present invention provides a leg rest device, which includes a base 10 installed at the bottom of a seat 100, a foldable frame 20 installed on the base 10, and a supporting plate 30 installed on the foldable frame 20, wherein the supporting plate 30 is driven to fold or unfold by folding or unfolding the foldable frame 20.

Specifically, the folding chassis 20 includes:

a connecting frame 21 rotatably mounted on the base 10, the connecting frame 21 being provided with hinges including a first hinge 221 connected to the connecting frame 21 and a second hinge 222 connected to the support plate 30;

and a link assembly connected between the base 10 and the support plate 30, one end of the link assembly being rotatably connected to the base 10 and the other end being rotatably connected to the bottom surface of the support plate 30.

Wherein, the connecting rod component is provided with a driving piece 24, and a driving shaft of the driving piece 24 is connected with a screw 241; the base 10 is provided with a guide cylinder 26, a threaded hole is formed in the guide cylinder 26, and the screw 241 penetrates through the threaded hole and is in threaded connection with the threaded hole.

Based on the above structure, when the screw 241 is screwed out along the threaded hole under the driving of the driving member 24, the connecting rod assembly is folded, so as to drive the supporting plate 30 to be expanded; when the screw 241 is driven by the driving member 24 to be screwed into the threaded hole, the connecting rod assembly is folded, thereby retracting the supporting plate 30.

Furthermore, a limiting groove 101 is formed in the base 10, and the limiting groove 101 is arc-shaped; the connecting frame 21 is provided with a stroke limiting piece 212, and the stroke limiting piece 212 is slidably limited in the limiting groove 101. When the supporting plate 30 is opened or closed, the stroke limiting member 212 can slide along the limiting groove 101, so as to limit the stroke and improve the stability of the movement of the supporting plate 30.

In this embodiment, the base 10 includes a horizontal plate, and two ends of the horizontal plate are provided with a connecting lug, and a connecting frame 21 and a connecting rod assembly are respectively disposed on the two connecting lugs. Wherein, the connecting frame 21 is rotatably installed on the base 10 by the first pin shaft 211.

Specifically, the link assembly includes a first link 231, a second link 232, and a third link 233 that are connected end to end; one end of the first link 231 is rotatably mounted on the base 10 by a second pin 2311; one end of the third link 233 is rotatably connected to the bottom surface of the support plate 30; wherein, the bottom surface of the supporting plate 30 is provided with a fixing seat 234, and the third connecting rod 233 is rotatably connected with the fixing seat 234.

Further, the second connecting rod 232 and the connecting frame 21 are arranged in a staggered manner, so that the second connecting rod 232 and the connecting frame 21 have overlapped portions, and the overlapped portions of the second connecting rod 232 and the connecting frame 21 are rotatably connected through the third pin 2321, so that the support framework can be more stably unfolded or folded.

A cross beam 2322 is connected between the two second connecting rods 232, and the driving part 24 is mounted on the cross beam 2322; the cross beam 2322 is a direction column, so that the driving element 24 is positioned, and the installation stability of the driving element 24 is improved. In the present embodiment, the driving member 24 is a motor, and a speed reducing motor or other types of motors can be specifically used. It is understood that the driving shaft of the driving member 24 may be disposed perpendicular to the screw 241, and the connection with the screw 241 is realized by a worm gear; in addition, the drive shaft of the driver 24 may be arranged coaxially with the screw 241.

Furthermore, the end of the second link 232 away from the first link 231 is a supporting point of the folding frame 20, a roller 25 is disposed at the supporting point, a roller shaft of the roller 25 is connected to the second link 232 through a connecting rod, the roller 25 can be used as a supporting component, and when the supporting plate 30 is opened or closed, the friction force between the supporting plate and the placing plane can be reduced, so that the supporting plate 30 can move smoothly.

In addition, the leg support device further comprises a baffle 40, wherein the baffle 40 is installed on the connecting frame 21 and covers the folding framework 20 to shield the folding framework 20, on one hand, the folding framework 20 can be protected, and on the other hand, passengers can be prevented from being pinched by the folding framework 20.

Based on the foregoing embodiment, in the present embodiment, the base 10 is mounted to the bottom of the seat 100 by the mounting assembly 50, and the mounting assembly 50 includes the detachable mounting member 54 detachably connected to the bottom of the seat 100. Wherein, a support tube 11 can be arranged at the bottom of the chair 100, the detachable mounting part 54 is a clamp, and the detachable connection of the leg rest device and the chair 100 is realized by clamping the detachable mounting part 54 on the support tube 11.

Further, the mounting assembly 50 also includes an adjustment assembly connected between the base 10 and the removable mount 54 by which the extension and height of the leg rest relative to the seat 100 can be adjusted.

Specifically, the adjustment assembly includes:

a first adjusting seat 51 movably connected with the base 10; the first adjusting base 51 includes a bottom plate and an installation ear disposed on the bottom plate, and the bottom plate and the installation ear are perpendicular to each other. The bottom plate is provided with a first adjusting groove 512, the first adjusting groove 512 is arranged along a first direction, an adjusting screw 511 is slidably arranged in the first adjusting groove 512, and the adjusting screw 511 is fixedly connected with the base 10. Based on this, the first adjustment seat 51 is driven to slide in a first direction for adjusting the legrest arrangement to a suitable extended length position.

A second adjusting seat 53 movably connected with the first adjusting seat 51; the second adjusting seat 53 may have the same structure as the first adjusting seat 51, or may have a different structure from the first adjusting seat, and includes a bottom plate and a mounting lug, where the bottom plate and the mounting lug are perpendicular to each other. All be equipped with the second adjustment tank 513 that sets up along the second direction on the installation ear of first regulation seat 51 and second regulation seat 53, run through between two second adjustment tanks 513 and be provided with regulation connecting rod 52 to second regulation seat 53 can be driven and slides along first direction and second direction for first regulation seat 51, and then realizes leg rest device height and the adjustment of stretching out length. Further, the two ends of the adjusting connecting rod 52 are respectively locked on the corresponding mounting ears through locking nuts 521, so as to fix the leg rest device at a proper height and a proper extending length position.

The detachable mounting member 54 is mounted on the second regulation seat 53; wherein, the bottom plate of the second adjusting seat 53 is provided with a third adjusting groove 531 arranged along the first direction, and the detachable mounting member 54 is slidably arranged in the third adjusting groove 531, so that the detachable mounting member 54 can be driven to slide along the first direction relative to the second adjusting seat 53.

Based on the structure, the leg support device can adjust the extending length and the height of the leg support device relative to the seat 100, so that the leg support device is suitable for passengers with different requirements, and the universality of products is improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A leg support device is characterized by comprising a base, a folding framework and a supporting plate, wherein the base is used for being installed at the bottom of a seat;

the folding skeleton includes:

2. The legrest apparatus of claim 1, wherein the link is pivotally mounted to the base by a first pivot.

3. The leg rest of claim 1, wherein the linkage assembly comprises a first linkage, a second linkage, and a third linkage connected end to end, wherein one end of the first linkage is rotatably connected to the base via a second pin, and one end of the third linkage is rotatably connected to the bottom surface of the support plate.

4. The leg rest of claim 3, wherein the second connecting rod is staggered with respect to the connecting frame, and the second connecting rod is rotatably connected with the connecting frame through a third pin.

5. A legrest as claimed in claim 3, wherein the second link is provided with a cross member and the drive member is mounted on the cross member.

6. A legrest as claimed in claim 3, in which the second link is provided with rollers.

7. The legrest of claim 1, wherein the base is mounted to a seat bottom by a mounting assembly that includes a removable mount removably coupled to the seat bottom.

8. The legrest apparatus of claim 7, wherein the mounting assembly further comprises an adjustment assembly coupled between the base and the detachable mount;

the adjustment assembly includes:

the removable mount is movably mounted to the second adjustment base, and the removable mount is driveably slidable along the first direction relative to the second adjustment base.

9. The leg rest of claim 1, wherein hinges are provided on the connecting frame, the hinges comprising a first hinge connected to the connecting frame and a second hinge connected to the support plate;

still include the baffle, the baffle is installed on the link.

10. The leg rest device according to claim 1, wherein the base is provided with a limiting groove, and the limiting groove is arc-shaped; the connecting frame is provided with a stroke limiting piece, and the stroke limiting piece is limited in the limiting groove in a sliding manner.