Vehicle-mounted leg support with freely adjustable length

Abstract

The invention discloses a vehicle-mounted leg support with the length capable of being freely adjusted, relates to the field of vehicle-mounted equipment application, and provides the following scheme that the vehicle-mounted leg support comprises a swing rod and supporting plates fixedly connected to the two ends of the swing rod respectively, and further comprises an extending mechanism installed between the two supporting plates and used for extending equipment, the extension mechanism comprises connecting rods which are in sliding connection with the two supporting plates respectively and extension sleeve plates which are fixedly connected with the two ends of the connecting rods respectively; and the supporting mechanism is installed between the two extending sleeve plates and used for supporting legs in the using process, and the supporting mechanism comprises limiting sliding rails fixedly connected to the inner sides of the extending sleeve plates correspondingly and moving frames slidably arranged in the limiting sliding rails in a sleeved mode correspondingly. The use length can be freely adjusted according to the requirements of a user, and meanwhile, the extended gap can be supported according to the movement of the auxiliary plate, so that the use comfort of the user is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the application field of vehicle-mounted equipment, and in particular to a vehicle-mounted leg rest with freely adjustable length. Background Art

[0002] The car leg rest is a design used to improve the riding comfort of the car. It can help passengers increase the leg support area and fill the entire leg bend. It is soft, elastic and comfortable. The leg rest can adjust the angle to support the calf. It is divided into leg rest adjustment for the front seat and the rear seat. The leg rest adjustment was first born in luxury cars to provide a stretched sitting posture for the boss in the back seat. Later, it was developed accordingly in MPV models. The leg rest adjustment can provide a more comfortable sitting posture and help passengers relieve the fatigue caused by long-term riding, especially in long-distance travel. In addition, the leg rest adjustment can also improve the comfort of passengers and make the ride more pleasant. However, the length of the existing seat leg rest is fixed, and the length of the leg rest cannot be personalized according to the body shape and needs of different passengers to meet the needs of different passengers, resulting in poor user experience. For this reason, we propose a vehicle-mounted leg rest with freely adjustable length. Summary of the invention

[0003] The present invention provides a vehicle-mounted leg rest with freely adjustable length to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A vehicle-mounted leg support with freely adjustable length, comprising a swing rod and support plates respectively fixedly connected to both ends of the swing rod, and further comprising: An extension mechanism, which is installed between the two support plates and is used to extend the use of the device. The extension mechanism includes a connecting rod slidably connected to the two support plates and an extension sleeve plate fixedly connected to both ends of the connecting rod; A support mechanism, which is installed between the two extension sleeves and is used for supporting the legs during use, and includes limit rails respectively fixedly connected to the inner sides of the extension sleeves and movable frames respectively slidably sleeved inside the limit rails; The driving mechanism is installed between two supporting plates and is used to output power to the extension mechanism and the supporting mechanism. One end of the extension mechanism is connected to the driving mechanism, and one side of the extension mechanism is connected to the supporting mechanism.

[0005] Furthermore, the extension mechanism also includes a first bidirectional threaded rod rotatably connected to the two support plates, both ends of the first bidirectional threaded rod are respectively threadedly connected to first moving blocks, and the same first telescopic fence is rotatably connected to the two first moving blocks.

[0006] Furthermore, a first sliding rod is fixedly connected between the two extension sleeves, and two first guide sliders are movably mounted on the first sliding rod. First resistance springs are fixedly connected to opposite sides of the two first guide sliders, and the other ends of the two first resistance springs are fixedly connected to the inner sides of the corresponding extension sleeves, and the two ends of the first sliding rod are movably mounted inside the two first resistance springs.

[0007] Furthermore, the support mechanism also includes a second bidirectional threaded rod rotatably connected to the two support plates, the two ends of the second bidirectional threaded rod are respectively threadedly connected to second moving blocks, the two second moving blocks are rotatably connected to the same second telescopic fence, the two moving frames are fixedly connected to the same auxiliary plate, and the auxiliary plate has a plurality of ventilation holes arranged in an array.

[0008] Furthermore, connecting plates are fixedly connected on both sides of the lower side of the auxiliary plate, two second sliding rods are symmetrically fixedly connected between the two connecting plates, second guide sliding blocks are slidably connected on both sides of the two second sliding rods, the two second guide sliding blocks are rotatably connected to the other end of the second telescopic fence, and second resistance springs are fixedly connected on opposite sides of the two second guide sliding blocks, the other ends of the second resistance springs are fixedly connected to one side of the connecting plate, and the two ends of the two second sliding rods are movably sleeved inside the second resistance springs.

[0009] Furthermore, the driving mechanism includes a fixed plate fixedly connected between the two support plates, a driving motor fixedly connected to the fixed plate, a worm fixedly connected to the output shaft of the driving motor, a worm wheel fixedly connected to the first bidirectional threaded rod corresponding to the worm, and one side of the worm wheel meshes with the worm for transmission.

[0010] Furthermore, one end of the first bidirectional threaded rod is fixedly connected to a first gear, one end of the second bidirectional threaded rod is fixedly connected to a second gear corresponding to the first gear, and one side of the second gear is meshed with the first gear for transmission.

[0011] Furthermore, both ends of the swing rod are respectively fixedly connected with swing tooth plates, and both sides of the two extended sleeves are respectively fixedly connected with reinforcement brackets.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention installs a driving mechanism, an extension mechanism and a supporting mechanism, outputs power to the whole device through the driving mechanism, and extends and stretches the device through the extension mechanism and the supporting mechanism, and supports the extended gap; In summary, the device can not only freely adjust the length of use according to the needs of users, but also support the gap after extension according to the movement of the auxiliary plate, thereby effectively ensuring the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a first overall top-view stereoscopic structure of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 2 A second overall top view stereoscopic structure schematic diagram of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 3 This is a schematic diagram of the overall first bottom-up stereoscopic structure of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 4 This is a schematic diagram of the overall second bottom-up stereoscopic structure of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 5 This is a bottom-up three-dimensional structural schematic diagram of an extension mechanism of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 6 This is a top-down perspective structural diagram of an extension mechanism of a vehicle-mounted leg rest with freely adjustable length proposed by the present invention; Figure 7 The invention provides a vehicle-mounted leg support with freely adjustable length. Figure 3 Schematic diagram of the partially enlarged three-dimensional structure at point A in the middle.

[0014] Description of reference numerals: 1. Swing rod; 2. Support plate; 3. Connecting rod; 4. Extension sleeve; 5. First two-way threaded rod; 6. First moving block; 7. First telescopic fence; 8. First slide rod; 9. First guide slider; 10. First resistance spring; 11. Worm gear; 12. Fixed plate; 13. Drive motor; 14. Worm; 15. Limiting slide rail; 16. Moving frame; 17. Auxiliary plate; 18. Connecting plate; 19. Second slide rod; 20. Second guide slider; 21. Second resistance spring; 22. Second two-way threaded rod; 23. Second moving block; 24. Second telescopic fence; 25. Second gear; 26. First gear; 27. Swinging gear plate; 28. Strengthening bracket. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] 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" 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, rather than indicating or implying 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 limiting the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] Example 1; Reference Figure 1-7 : A vehicle-mounted leg support with freely adjustable length, comprising a swing rod 1 and support plates 2 respectively fixedly connected to both ends of the swing rod 1, and also comprising: An extension mechanism is installed between the two support plates 2 and is used to extend the use of the equipment. The extension mechanism includes a connecting rod 3 that is slidably connected to the two support plates 2 and an extension sleeve 4 that is fixedly connected to both ends of the connecting rod 3. The extension mechanism also includes a first bidirectional threaded rod 5 that is rotatably connected between the two support plates 2. Both ends of the first bidirectional threaded rod 5 are respectively threadedly connected to a first moving block 6, and the two first moving blocks 6 are rotatably connected to the same first telescopic fence 7; A support mechanism is installed between the two extension sleeves 4 and is used for leg support during use. The support mechanism includes limit rails 15 respectively fixedly connected to the inner sides of the extension sleeves 4 and mobile frames 16 respectively slidably sleeved inside the limit rails 15. The support mechanism also includes a second bidirectional threaded rod 22 rotatably connected between the two support plates 2, and second moving blocks 23 are respectively threadedly connected at both ends of the second bidirectional threaded rod 22. The same second telescopic fence 24 is rotatably connected to the two second moving blocks 23. The same auxiliary plate 17 is fixedly connected to the two mobile frames 16, and a plurality of ventilation holes are arranged in an array on the auxiliary plate 17. The driving mechanism is installed between the two support plates 2, and is used to output power to the extension mechanism and the support mechanism. One end of the extension mechanism is connected to the driving mechanism, and one side of the extension mechanism is connected to the support mechanism. The driving mechanism includes a fixed plate 12 fixedly connected between the two support plates 2, and a driving motor 13 is fixedly connected to the fixed plate 12. The output shaft of the driving motor 13 is fixedly connected to a worm 14. A worm wheel 11 is fixedly connected to the first bidirectional threaded rod 5 corresponding to the worm 14, and one side of the worm wheel 11 is meshed with the worm 14 for transmission.

[0019] In the present invention, a first slide rod 8 is fixedly connected between the two extension sleeves 4, and two first guide sliders 9 are movably sleeved on the first slide rod 8. The opposite sides of the two first guide sliders 9 are respectively fixedly connected with first resistance springs 10, and the other ends of the two first resistance springs 10 are respectively fixedly connected to the inner sides of the corresponding extension sleeves 4, and the two ends of the first slide rod 8 are respectively movably sleeved inside the two first resistance springs 10.

[0020] In the present invention, connecting plates 18 are fixedly connected to the lower sides of the auxiliary plate 17, and two second sliding rods 19 are symmetrically fixedly connected between the two connecting plates 18. Second guide sliders 20 are slidably connected to the two sides of the two second sliding rods 19, and the two second guide sliders 20 are rotatably connected to the other end of the second telescopic fence 24, respectively. Second resistance springs 21 are fixedly connected to the opposite sides of the two second guide sliders 20, and the other ends of the second resistance springs 21 are fixedly connected to one side of the connecting plate 18, and the two ends of the two second sliding rods 19 are movably sleeved inside the second resistance springs 21.

[0021] In the present invention, one end of the first bidirectional threaded rod 5 is fixedly connected to the first gear 26, one end of the second bidirectional threaded rod 22 is fixedly connected to the second gear 25 corresponding to the first gear 26, one side of the second gear 25 is meshed with the first gear 26 for transmission, both ends of the swing rod 1 are respectively fixedly connected to the swing tooth plate 27, and the two sides of the two extended sleeves 4 are respectively fixedly connected to the reinforcing bracket 28 (the external overall packaging of the device is a sponge packaging body, and the packaging technology belongs to the prior art and will not be described in detail here).

[0022] Working principle: During use, when it is necessary to adjust the angle, it is only necessary to drive the swinging gear plate 27 to make the swinging rod 1 swing, so as to adjust the overall angle of the equipment. When it is necessary to adjust the leg support length, the worm 14 is driven to rotate by starting the driving motor 13. The rotation of the worm 14 engages with the worm wheel 11 to drive the first bidirectional threaded rod 5 to rotate. The rotation of the first bidirectional threaded rod 5 drives the two first moving blocks 6 to move in opposite directions. The movement of the two first moving blocks 6 synchronously extends and contracts the first telescopic fence 7. The extension of the first telescopic fence 7 drives the two first guide sliders 9 to slide synchronously. At the same time, the two extension sleeves 4 are driven to move by the first slide rod 8. The use area is expanded by the extension of the two extension sleeves 4. When the first bidirectional threaded rod 5 rotates, it also drives the rotation of the first gear 26. The rotation of the first gear 26 meshes with the second gear 25 for transmission. The rotation of the second gear 25 drives the synchronous rotation of the second bidirectional threaded rod 22. The rotation of the second bidirectional threaded rod 22 synchronously drives the two second moving blocks 23 to move. When the two second moving blocks 23 move synchronously, the second telescopic fence 24 is driven to be telescopic. When the second telescopic fence 24 is extended, the two second guide sliders 20 are driven to move synchronously along the second slide rod 19, thereby driving the auxiliary plate 17 to move. The gap after extension is filled by the movement of the auxiliary plate 17, thereby ensuring the comfort of the user's legs when placed.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle-mounted leg support with freely adjustable length, comprising a swing rod (1) and support plates (2) respectively fixedly connected to both ends of the swing rod (1), characterized in that: Also includes: An extension mechanism, the extension mechanism being installed between the two support plates (2) and being used for extending the use of the device, the extension mechanism comprising a connecting rod (3) respectively slidably connected to the two support plates (2) and an extension sleeve (4) respectively fixedly connected to both ends of the connecting rod (3); A support mechanism, the support mechanism is installed between the two extension sleeves (4) and is used for supporting the legs when in use, the support mechanism comprising limiting slide rails (15) respectively fixedly connected to the inner sides of the extension sleeves (4) and moving frames (16) respectively slidably sleeved inside the limiting slide rails (15); A driving mechanism is installed between the two support plates (2) and is used to output power to the extension mechanism and the support mechanism, one end of the extension mechanism is connected to the driving mechanism, and one side of the extension mechanism is connected to the support mechanism.

2. The vehicle-mounted leg rest with freely adjustable length according to claim 1, characterized in that: The extension mechanism further comprises a first bidirectional threaded rod (5) rotatably connected to the two support plates (2), the two ends of the first bidirectional threaded rod (5) being respectively threadedly connected to first moving blocks (6), and the two first moving blocks (6) being rotatably connected to the same first telescopic fence (7).

3. The vehicle-mounted leg rest with freely adjustable length according to claim 2, characterized in that: A first slide bar (8) is fixedly connected between the two extension sleeves (4), two first guide slide blocks (9) are movably sleeved on the first slide bar (8), first resistance springs (10) are fixedly connected to opposite sides of the two first guide slide blocks (9), the other ends of the two first resistance springs (10) are respectively fixedly connected to the inner sides of the corresponding extension sleeves (4), and the two ends of the first slide bar (8) are respectively movably sleeved inside the two first resistance springs (10).

4. The vehicle-mounted leg rest with freely adjustable length according to claim 2, characterized in that: The support mechanism further comprises a second bidirectional threaded rod (22) rotatably connected to the two support plates (2), the two ends of the second bidirectional threaded rod (22) are respectively threadedly connected to second moving blocks (23), the two second moving blocks (23) are rotatably connected to the same second telescopic fence (24), the two moving frames (16) are fixedly connected to the same auxiliary plate (17), and the auxiliary plate (17) is provided with a plurality of ventilation holes in an array.

5. The vehicle-mounted leg rest with freely adjustable length according to claim 4, characterized in that: The two sides below the auxiliary plate (17) are respectively fixedly connected with connecting plates (18), and two second sliding rods (19) are symmetrically fixedly connected between the two connecting plates (18). The two sides of the two second sliding rods (19) are respectively slidably connected with second guide sliders (20), and the two second guide sliders (20) are respectively rotatably connected to the other end of the second telescopic fence (24). The two second guide sliders (20) are respectively fixedly connected with second resistance springs (21) on the opposite sides, and the other ends of the second resistance springs (21) are respectively fixedly connected to one side of the connecting plate (18), and the two ends of the two second sliding rods (19) are respectively movably sleeved inside the second resistance springs (21).

6. The vehicle-mounted leg rest with freely adjustable length according to claim 2, characterized in that: The driving mechanism comprises a fixing plate (12) fixedly connected to the two support plates (2); a driving motor (13) is fixedly connected to the fixing plate (12); an output shaft of the driving motor (13) is fixedly connected to a worm (14); a worm wheel (11) is fixedly connected to a position of the first bidirectional threaded rod (5) corresponding to the worm (14); and one side of the worm wheel (11) is meshed with the worm (14) for transmission.

7. The vehicle-mounted leg rest with freely adjustable length according to claim 4, characterized in that: One end of the first bidirectional threaded rod (5) is fixedly connected to a first gear (26), and one end of the second bidirectional threaded rod (22) is fixedly connected to a second gear (25) at a position corresponding to the first gear (26), and one side of the second gear (25) is meshed with the first gear (26) for transmission.

8. The vehicle-mounted leg rest with freely adjustable length according to claim 1, characterized in that: The two ends of the swing rod (1) are respectively fixedly connected to a swing tooth plate (27), and the two sides of the two extended sleeve plates (4) are respectively fixedly connected to a reinforcement bracket (28).

Images