Leg support telescopic driving assembly, leg support telescopic assembly, leg support, seat and vehicle

Abstract

The utility model discloses a leg support telescopic driving component, leg support telescopic assembly, leg support, seat and vehicle, the driving component includes: first driving piece, first transmission piece, second transmission piece, third transmission piece and fourth transmission piece, first driving piece can drive first transmission piece to rotate, second transmission piece and first transmission piece transmission cooperation, third transmission piece and fourth transmission piece transmission cooperation. The first transmission part rotates to drive the second transmission part to move, the third transmission part is fixed to the second transmission part, and the second transmission part moves to drive the third transmission part to rotate. The fourth transmission part is in transmission fit with the third transmission part, and the third transmission part rotates to drive the fourth transmission part to move; the fourth transmission part is suitable for being connected to the leg support. The first driving part can increase the telescopic length of the thigh support through transmission of the first transmission part, the second transmission part, the third transmission part and the fourth transmission part in sequence, the thigh part can be supported, the shank part can also be supported, and therefore the riding comfort can be improved, and the space can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a leg rest telescopic driving component, a leg rest telescopic assembly, a leg rest, a seat and a vehicle. Background Art

[0002] In the related art, after the leg rest is lifted, the outer plate of the leg rest is usually extended forward by direct pushing of a motor lead screw. However, due to the limitation of the length of the lead screw, the leg rest cannot provide good support for the calf. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a leg rest telescopic drive assembly, which can increase the telescopic length of the leg rest, not only providing support for the thigh, but also supporting the calf, thereby improving riding comfort and saving space.

[0004] The utility model further provides a telescopic assembly of a leg support.

[0005] The utility model further provides a leg support.

[0006] The utility model further provides a seat.

[0007] The utility model further provides a vehicle.

[0008] According to the leg rest telescopic drive assembly of the utility model, the drive assembly includes: a first drive member, a first transmission member, a second transmission member, a third transmission member and a fourth transmission member, the first drive member can drive the first transmission member to rotate, the second transmission member is in transmission cooperation with the first transmission member, the rotation of the first transmission member can drive the second transmission member to move, the third transmission member is fixed on the second transmission member, the movement of the second transmission member can drive the third transmission member to rotate; the fourth transmission member is in transmission cooperation with the third transmission member, the rotation of the third transmission member can drive the fourth transmission member to move; the fourth transmission member is suitable for being connected to the leg rest.

[0009] According to the leg rest telescopic drive assembly of the utility model, the first drive member can increase the telescopic length of the leg rest through the transmission of the first transmission member, the second transmission member, the third transmission member and the fourth transmission member in sequence, which can not only provide support for the thigh area, but also support the calf area, thereby improving the riding comfort and saving space.

[0010] In some examples of the present invention, the moving direction of the second transmission member is the same as the moving direction of the fourth transmission member.

[0011] In some examples of the present invention, the first transmission member is a screw rod, and the second transmission member includes: a threaded tube, and the threaded tube is sleeved on the screw rod to drive the threaded tube to move when the screw rod rotates.

[0012] In some examples of the present invention, the second transmission member further includes: a first connecting plate and a second connecting plate, the first connecting plate is connected to the second connecting plate, the threaded tube is connected to the first connecting plate, and the third transmission member is fixed to the second connecting plate.

[0013] In some examples of the present invention, the third transmission member includes a fixing pin and a gear, the gear is rotatably connected to the fixing pin, and the fixing pin is fixedly connected to the second connecting plate.

[0014] In some examples of the present invention, the third transmission member is a gear, the fourth transmission member is a first rack, and the gear is meshed with the first rack.

[0015] In some examples of the present invention, the drive assembly further includes: a second drive member, the second drive member is driven in cooperation with the gear; or the drive assembly further includes: a second rack, the second rack is fixed to the leg rest, and the second rack is meshed with the gear.

[0016] According to the utility model, the telescopic assembly of the leg rest comprises: a leg rest bottom plate; a leg rest outer plate; the above-mentioned leg rest telescopic drive component, wherein the first drive member is arranged on the leg rest bottom plate, and the fourth drive member is connected to the leg rest outer plate.

[0017] In some examples of the present invention, the telescopic assembly of the leg rest also includes: a first sliding member and a second sliding member, the first sliding member is connected to the bottom plate of the leg rest, the second sliding member is connected to the outer plate of the leg rest, and the first sliding member and the second sliding member are slidably matched.

[0018] In some examples of the present invention, the first sliding member is a metal structural member, and the second sliding member is a metal structural member.

[0019] The leg rest according to the utility model comprises: a mounting bracket; the telescopic assembly of the leg rest mentioned above, wherein the telescopic assembly is arranged on the mounting bracket.

[0020] In some examples of the present invention, the leg rest further includes: a lifting assembly connected between the mounting bracket and the leg rest base plate.

[0021] The seat according to the utility model comprises: a seat body; and the above-mentioned leg rest, wherein the leg rest is connected to the seat body.

[0022] The vehicle according to the utility model comprises: the seat mentioned above.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the first structure of the leg support according to an embodiment of the utility model;

[0026] Figure 2 is a schematic diagram of a second structure of a leg support according to an embodiment of the utility model;

[0027] Figure 3 It is a third structural schematic diagram of a leg support according to an embodiment of the utility model;

[0028] Figure 4 It is a partial structural schematic diagram of a leg support according to an embodiment of the utility model;

[0029] Figure 5 This is a first exploded view of a leg support according to an embodiment of the utility model;

[0030] Figure 6 This is a first exploded view of a leg rest according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] 1. Telescopic assembly;

[0033] 10. Leg rest bottom plate; 11. Second rack; 20. Leg rest outer plate; 30. Drive assembly; 31. First drive member; 32. First transmission member; 33. Second transmission member; 331. Threaded tube; 332. First connecting plate; 333. Second connecting plate; 34. Third transmission member; 35. Fourth transmission member; 40. First sliding member; 50. Second sliding member; 2. Leg rest; 201. Mounting bracket; 202. Lifting assembly; 2021. Lifting frame; 2022. Third drive member. DETAILED DESCRIPTION

[0034] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0035] Reference below Figure 1-Figure 6The telescopic assembly 1 of the leg rest according to the embodiment of the utility model is described. The telescopic assembly 1 of the leg rest can be arranged on a vehicle to support the legs.

[0036] like Figure 1-Figure 6 As shown, the telescopic assembly 1 of the leg rest according to the embodiment of the utility model comprises: a leg rest bottom plate 10, a leg rest outer plate 20 and a leg rest 2 telescopic drive assembly 30. Among them, the leg rest bottom plate 10 mainly plays the role of installation and support. The leg rest outer plate 20 mainly plays the role of support, which can support the legs. The drive assembly 30 mainly plays the role of driving, which can provide power for the corresponding components.

[0037] like Figure 3 and Figure 4 As shown, the driving assembly 30 includes: a first driving member 31, a first transmission member 32, a second transmission member 33, a third transmission member 34 and a fourth transmission member 35. The first driving member 31 can drive the first transmission member 32 to rotate, the first transmission member 32 and the second transmission member 33 are in transmission cooperation, the rotation of the first transmission member 32 can drive the second transmission member 33 to move, the third transmission member 34 is fixed on the second transmission member 33, the movement of the second transmission member 33 can drive the third transmission member 34 to rotate, and the third transmission member 34 and the fourth transmission member 35 are in transmission cooperation, the rotation of the third transmission member 34 can drive the fourth transmission member 35 to move.

[0038] In addition, the fourth transmission member 35 is suitable for being connected to the leg support 2. Specifically, the first driving member 31 is disposed on the leg support bottom plate 10, and the fourth transmission member 35 is connected to the leg support outer plate 20.

[0039] Among them, the first driving member 31 mainly plays a driving role and can provide power for the action of the corresponding parts. The first transmission member 32, the second transmission member 33, the third transmission member 34 and the fourth transmission member 35 can all play a transmission role. The first driving member 31 is set on the leg support bottom plate 10, so that the first driving member 31 can be fixed, so that the setting of the first driving member 31 is more reliable and stable, and the first driving member 31 can work better. Similarly, the fourth transmission member 35 is connected to the leg support outer plate 20, so that the fourth transmission member 35 can be fixed, so that the setting of the fourth transmission member 35 is more reliable and stable, and the fourth transmission member 35 can work better.

[0040] Specifically, the first driving member 31 is in driving cooperation with the first transmission member 32, so that the first driving member 31 can transmit power to the first transmission member 32, so that the first transmission member 32 can rotate under the drive of the first driving member 31. The first transmission member 32 is in driving cooperation with the second transmission member 33, so that the first transmission member 32 can transmit power to the second transmission member 33, so that the second transmission member 33 can move under the drive of the first transmission member 32. The third transmission member 34 is rotatably arranged on the second transmission member 33, that is, the third transmission member 34 can rotate relative to the second transmission member 33. Because the third transmission member 34 is in driving cooperation with the fourth transmission member 35, the power on the third transmission member 34 can be transmitted to the fourth transmission member 35, so that the fourth transmission member 35 can move under the drive of the third transmission member 34, and because the fourth transmission member 35 is connected to the leg support outer plate 20, the leg support outer plate 20 can move. In this way, the first driving member 31 can drive the leg rest outer plate 20 to move relative to the leg rest bottom plate 10 through the transmission of the first transmission member 32, the second transmission member 33, the third transmission member 34 and the fourth transmission member 35 in sequence, thereby increasing the telescopic length of the leg rest outer plate 20 relative to the leg rest bottom plate 10.

[0041] Therefore, by setting the first driving member 31 on the leg rest base plate 10 and setting the fourth transmission member 35 on the leg rest outer plate 20, the first driving member 31 can be transmitted in sequence through the first transmission member 32, the second transmission member 33, the third transmission member 34 and the fourth transmission member 35 to increase the telescopic length of the leg rest outer plate 20 relative to the leg rest base plate 10, which can not only provide support for the thigh area, but also support the calf area, thereby improving riding comfort and saving space.

[0042] In addition, if Figure 4-Figure 6 As shown, the moving direction of the second transmission member 33 is the same as the moving direction of the fourth transmission member 35. Since the first driving member 31 is arranged on the leg support base plate 10, the fourth transmission member 35 is connected to the leg support outer plate 20. In order to enable the leg support outer plate 20 to move farther relative to the leg support base plate 10, the transmission directions of the first transmission member 32, the second transmission member 33 and the third transmission member 34 should be as consistent as possible with the direction in which the leg support outer plate 20 is extended relative to the leg support base plate 10. Therefore, the moving direction of the second transmission member 33 is the same as the moving direction of the fourth transmission member 35, and such a setting is more reasonable, and the telescopic length of the leg support outer plate 20 relative to the leg support base plate 10 can be increased, so that the leg support outer plate 20 can support the calf.

[0043] Specifically, Figure 4-Figure 6As shown, the first transmission member 32 is a screw rod, and the second transmission member 33 includes: a threaded tube 331, and the threaded tube 331 is sleeved on the screw rod to drive the threaded tube 331 to move when the screw rod rotates. In other words, the first transmission member 32 and the second transmission member 33 can be a screw rod and a threaded tube 331, respectively. The threaded tube 331 is sleeved on the screw rod, so that when the first driving member 31 drives the screw rod to rotate, the screw rod can drive the threaded tube 331 to move along the axial direction of the screw rod, thereby realizing the movement of the threaded tube 331, and then facilitating the transmission coordination between the threaded tube 331 and the leg support outer plate 20, as well as the same-direction movement. In addition, the coordination between the screw rod and the threaded tube 331 is more precise, so that the position of the leg support outer plate 20 can be controlled more accurately.

[0044] Furthermore, if Figure 4 As shown, the second transmission member 33 also includes: a first connecting plate 332 and a second connecting plate 333, the first connecting plate 332 is connected to the second connecting plate 333, the threaded tube 331 is connected to the first connecting plate 332, and the third transmission member 34 is fixed to the second connecting plate 333. Among them, the first connecting plate 332 and the second connecting plate 333 can both play the role of connection and installation. Connecting the first connecting plate 332 and the second connecting plate 333 can make the connection between the first connecting plate 332 and the second connecting plate 333 more stable, so that the structure of the second transmission member 33 can be more stable, and the second transmission member 33 can work better.

[0045] The threaded tube 331 is connected to the first connecting plate 332, so that the first connecting plate 332 can be fixed, so that the connection between the threaded tube 331 and the first connecting plate 332 is more stable, so that when the threaded tube 331 moves along the axial direction of the screw rod, the first connecting plate 332 can move with the threaded tube 331, and since the second connecting plate 333 is connected to the first connecting plate 332, the first connecting plate 332 will also drive the second connecting plate 333 to move when the first connecting plate 332 moves. The third transmission member 34 is rotatably arranged on the second connecting plate 333, that is, the third transmission member 34 can rotate relative to the second connecting plate 333. Since the third transmission member 34 is arranged on the second connecting plate 333, when the second connecting plate 333 moves, the third transmission member 34 will also move with the first connecting plate 332.

[0046] Specifically, the third transmission member 34 includes a fixed pin and a gear, the gear is rotatably connected to the fixed pin, and the fixed pin is fixedly connected to the second connecting plate 333. In other words, the third transmission member 34 is hingedly connected to the second connecting plate 333 through the transmission mode of the gear and the fixed pin, so that the third transmission member 34 can rotate better relative to the second connecting plate 333, so that the third transmission member 34 can better transmit kinetic energy.

[0047] In addition, if Figure 4-Figure 6 As shown, the third transmission member 34 is a gear, and the fourth transmission member 35 is a first rack, and the gear is meshed with the first rack. That is to say, the third transmission member 34 and the fourth transmission member 35 can be a gear and a first rack respectively, so that when the gear rotates, the gear can drive the first rack to move by meshing with the first rack, thereby driving the leg support outer plate 20 to move. Moreover, the meshing of the gear and the first rack also has the advantages of stable transmission, high transmission efficiency, and long service life, so that the transmission cooperation between the third transmission member 34 and the fourth transmission member 35 can be more stable and reliable.

[0048] In addition, if Figure 4-Figure 6 As shown, the driving assembly 30 also includes a second driving member, and the second driving member cooperates with the gear drive; or the driving assembly 30 also includes: a second rack 11, and the second rack 11 is fixed to the leg rest 2. Specifically, the second rack 11 is provided on the leg rest bottom plate 10, and the gear is also meshed with the second rack 11. Among them, the second driving member also mainly plays a driving role. The second driving member is cooperated with the gear drive, so that the second driving member can drive the gear to rotate, and the rotation of the gear can drive the rack to move, and then can drive the leg rest outer plate 20 to move. The second driving member is a motor.

[0049] Alternatively, a second rack 11 is provided on the leg support base plate 10, and the second rack 11 can also play a driving role. The second rack 11 is provided on the leg support base plate 10, so that the second rack 11 can be fixed, so that the second rack 11 is arranged more firmly and stably, and the second rack 11 can work better. Specifically, the second rack 11 is also engaged with the gear, so that when the second connecting plate 333 drives the gear to move, since the gear is engaged with the second rack 11, and the second rack 11 is fixed relative to the leg support base plate 10, the rack will rotate under the joint drive of the second connecting plate 333 and the second rack 11. Since the gear is engaged with the rack, the rotation of the gear will drive the rack to move, and then the leg support outer plate 20 can be driven to move.

[0050] It should be noted that during the movement of the leg rest outer plate 20 relative to the leg rest bottom plate 10, the second connecting plate 333 will drive the gear to move, and the gear will also rotate during the movement, so that the moving stroke of the rack is equal to the movement stroke of the screw plus the circumference of the gear rotation. Therefore, the moving stroke of the rack is approximately equal to twice the stroke of the screw, thereby extending the moving distance of the leg rest outer plate 20 relative to the leg rest bottom plate 10 when the length of the screw is limited.

[0051] Furthermore, if Figure 4-Figure 6As shown, the telescopic assembly 1 of the leg support also includes: a first sliding member 40 and a second sliding member 50, the first sliding member 40 is connected to the leg support base plate 10, the second sliding member 50 is connected to the leg support outer plate 20, and the first sliding member 40 and the second sliding member 50 are slidably matched. Among them, the first sliding member 40 and the second sliding member 50 can both play the role of support and guidance. The first sliding member 40 is connected to the leg support base plate 10, so that the first sliding member 40 can be fixed, so that the connection between the first sliding member 40 and the leg support base plate 10 is more stable, so that the first sliding member 40 can better play the role of support and guidance. Similarly, the second sliding member 50 is connected to the leg support outer plate 20, so that the second sliding member 50 can be fixed, so that the connection between the second sliding member 50 and the leg support outer plate 20 is more stable, so that the second sliding member 50 can better play the role of support and guidance. Specifically, the first sliding member 40 and the second sliding member 50 are slidably matched, that is, when the leg rest outer plate 20 moves relative to the leg rest bottom plate 10, the second sliding member 50 also moves relative to the first sliding member 40, so that the movement of the leg rest outer plate 20 can be more stable and accurate, thereby improving the stability of the leg rest telescopic assembly 1. In addition, the second sliding member 50 can also play a role in enhancing the structural strength of the leg rest outer plate 20.

[0052] Specifically, the first sliding member 40 is a metal structural member, and the second sliding member 50 is a metal structural member. In other words, both the first sliding member 40 and the second sliding member 50 can be metal structural members. Since metal structural members have greater structural strength, such a configuration is more reasonable, and the first sliding member 40 and the second sliding member 50 can have greater structural strength, thereby improving the structural strength of the leg support bottom plate 10 and the leg support outer plate 20 to a certain extent, and the first sliding member 40 and the second sliding member 50 are not easily damaged when in use.

[0053] The leg rest 2 according to the embodiment of the utility model comprises: a mounting bracket 201; and the telescopic assembly 1 of the leg rest described in the above embodiment, and the telescopic assembly is arranged on the mounting bracket 201. Among them, the mounting bracket 201 mainly plays the role of installation and can provide an installation position for other corresponding components. Specifically, the telescopic assembly is arranged on the mounting bracket 201, so that the telescopic assembly can be fixed, and the telescopic assembly can be arranged more firmly and stably, so that the telescopic assembly can work better.

[0054] In addition, if Figure 1-Figure 3As shown, the leg rest 2 also includes a lifting assembly 202, and the lifting assembly 202 is connected between the mounting bracket 201 and the leg rest base plate 10. Among them, the lifting assembly 202 mainly plays a lifting role. The lifting assembly 202 is connected between the mounting bracket 201 and the leg rest base plate 10, so that part of the structure of the lifting assembly 202 can be fixed, so that the setting of the lifting assembly 202 is more reliable and stable, so that the lifting assembly 202 can work better. Specifically, the lifting assembly 202 can be used to adjust the height of the leg rest base plate 10, so as to improve the flexibility of the leg rest 2 and enhance the user experience.

[0055] Furthermore, if Figure 1 and Figure 3 As shown, the lifting assembly 202 includes a lifting frame 2021 and a third driving member 2022, the lifting frame 2021 is connected between the mounting bracket 201 and the leg support base plate 10, the third driving member 2022 is arranged on the mounting bracket 201, and the third driving member 2022 cooperates with the lifting frame 2021 in driving. Among them, the third driving member 2022 mainly plays a driving role and can provide power for the corresponding components. The lifting frame 2021 mainly plays a transmission role and can drive the corresponding components to be lifted and lowered. Specifically, the third driving member 2022 is arranged on the mounting bracket 201, so that the third driving member 2022 can be fixed, so that the setting of the third driving member 2022 is more reliable and stable, and the third driving member 2022 can work better. The lifting frame 2021 is connected between the mounting bracket 201 and the leg support base plate 10, and the third driving member 2022 cooperates with the driving of the lifting frame 2021, so that the driving member can provide power for the lifting frame 2021, thereby driving the lifting frame 2021 to work, and the movement of the lifting frame 2021 will drive the leg support base plate 10 to lift or lower.

[0056] The seat according to the embodiment of the utility model comprises: a seat body and the leg rest 2 of the above-mentioned embodiment, wherein the leg rest 2 is connected to the seat body, that is, the mounting bracket 201 is connected to the seat body. The seat body mainly plays the role of supporting and improving comfort. The mounting bracket 201 is connected to the seat body, so that the mounting bracket 201 can be fixed, so that the setting of the mounting bracket 201 can be made more secure and stable, and the mounting bracket can better play the role of installation.

[0057] A vehicle according to an embodiment of the utility model includes: the seat described in the above embodiment.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A leg support telescopic drive assembly (30), characterized in that: The driving assembly (30) comprises: a first driving member (31), a first transmission member (32), a second transmission member (33), a third transmission member (34) and a fourth transmission member (35); the first driving member (31) can drive the first transmission member (32) to rotate; the second transmission member (33) cooperates with the first transmission member (32) in transmission; the rotation of the first transmission member (32) can drive the second transmission member (33) to move; The third transmission member (34) is fixed on the second transmission member (33), and the movement of the second transmission member (33) can drive the third transmission member (34) to rotate; The fourth transmission member (35) is in transmission cooperation with the third transmission member (34), and the rotation of the third transmission member (34) can drive the fourth transmission member (35) to move; The fourth transmission member (35) is suitable for being connected to the leg support (2).

2. The leg support telescopic drive assembly (30) according to claim 1, characterized in that: The moving direction of the second transmission member (33) is the same as the moving direction of the fourth transmission member (35).

3. The leg support telescopic drive assembly (30) according to claim 1, characterized in that: The first transmission member (32) is a screw rod, and the second transmission member (33) comprises a threaded tube (331), wherein the threaded tube (331) is sleeved on the screw rod so as to drive the threaded tube (331) to move when the screw rod rotates.

4. The leg support telescopic drive assembly (30) according to claim 3, characterized in that: The second transmission member (33) further comprises: a first connecting plate (332) and a second connecting plate (333), wherein the first connecting plate (332) is connected to the second connecting plate (333), the threaded tube (331) is connected to the first connecting plate (332), and the third transmission member (34) is fixed to the second connecting plate (333).

5. The leg support telescopic drive assembly (30) according to claim 4, characterized in that: The third transmission member (34) comprises a fixing pin and a gear, the gear is rotatably connected to the fixing pin, and the fixing pin is fixedly connected to the second connecting plate (333).

6. The leg support telescopic drive assembly (30) according to claim 5, characterized in that: The fourth transmission member (35) is a first rack, and the gear is meshed with the first rack.

7. The leg support telescopic drive assembly (30) according to claim 5, characterized in that: The driving assembly (30) further comprises: a second driving member, the second driving member drivingly cooperates with the gear; or A second rack (11), wherein the second rack is fixed to the leg support (2), and the second rack (11) is meshed with the gear.

8. A telescopic assembly (1) of a leg rest, characterized in that: include: Leg support bottom plate (10); Leg support outer plate (20); The leg rest telescopic drive assembly (30) described in any one of claims 1 to 7, wherein the first drive member (31) is arranged on the leg rest bottom plate (10), and the fourth transmission member (35) is connected to the leg rest outer plate (20).

9. The telescopic assembly (1) of the leg support according to claim 8, characterized in that: Also includes: A first sliding member (40) and a second sliding member (50), wherein the first sliding member (40) is connected to the leg support bottom plate (10), and the second sliding member (50) is connected to the leg support outer plate (20), and the first sliding member (40) and the second sliding member (50) are slidably matched.

10. The telescopic assembly (1) of the leg support according to claim 9, characterized in that: The first sliding member (40) is a metal structural member, and the second sliding member (50) is a metal structural member.

11. A leg support (2), characterized in that: include: Mounting bracket (201); The telescopic assembly (1) of the leg rest according to any one of claims 8 to 10, wherein the telescopic assembly is arranged on the mounting bracket (201).

12. The leg support (2) according to claim 11, characterized in that: Also includes: A lifting assembly (202), wherein the lifting assembly (202) is connected between the mounting bracket (201) and the leg support base plate (10).

13. A seat, characterized in that: include: Seat body; The leg rest (2) according to any one of claims 11-12, wherein the leg rest (2) is connected to the seat body.

14. A vehicle, characterized in that: include: The seat as claimed in claim 13.

Images