Anti-pinch leg support mechanism

Abstract

The utility model belongs to the technical field of seat leg supports, particularly relates to an anti-pinch leg support mechanism, and aims to solve the problems that according to an existing traditional leg support design, hands are prone to being pinched, risks exist when the leg support is stretched and stored, adjustment is complex and inconvenient to operate and the like. The anti-pinch leg support mechanism comprises a mounting plate, the top of the mounting plate is provided with a telescopic support, the telescopic support is composed of a movable part and a fixed part, the movable part and the fixed part are connected in a sliding mode, and the bottom of the fixed part of the telescopic support is fixedly connected with the top of the mounting plate. The safety is greatly improved; the installation frame, the telescopic support and the double-motor driving assembly are reasonable in structure, easy and convenient to operate, high in driving force and high in adjusting precision, a user can easily control the motors to achieve stretching and storage of the leg support, complex manual operation is not needed, it can be guaranteed that the leg support is stable and comfortable, and the use experience is comprehensively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair leg support technology field especially relates to prevent clamping hand leg support mechanism. BACKGROUND

[0002] The leg support mechanism as an important part of the seat is concerned about its safety while providing leg support. The traditional leg support design often has the risk of clamping hands, especially during the extension and storage of the leg support, the edge gap is easy to clamp the user's fingers; in addition, the adjustment mode of part of the leg support is complex, inconvenient to operate, and it is difficult to meet the dual demands of comfort and convenience of the user.

[0003] In view of the above problem, the utility model file puts forward a prevent clamping hand leg support mechanism. INVENTION CONTENTS

[0004] The utility model discloses a prevent clamping hand leg support mechanism to solve the traditional leg support design of prior art easy clamping hand, and there is risk when extending and storing, and the adjustment is complex and inconvenient to operate and other shortcomings.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] Prevent clamping hand leg support mechanism, including:

[0007] Mounting frame, the one end of mounting frame is hinged with mounting plate, the top of mounting plate is provided with telescopic support, telescopic support is composed of movable part and fixed part, movable part and fixed part are connected by sliding, the bottom of fixed part of telescopic support is fixedly connected with the top of mounting plate, the top of movable part of telescopic support is fixedly installed with leg support plate, and the leg support plate is used to provide support to the leg of user;

[0008] The side of leg support plate is curved downward and forms arc baffle, and the edge of mounting plate and telescopic support is covered by arc baffle, so as to prevent the edge gap of mounting plate, telescopic support and leg support plate from clamping hands;

[0009] Further including drive assembly, drive assembly is used to realize the horizontal push-out of mounting plate rotation lifting and leg support plate.

[0010] In a possible design, the mounting frame is composed of support frame, pivot and rotating frame, the pivot is arranged at one end of support frame, the pivot rotates and penetrates support frame, one end of support frame is provided with two rotating frames, two rotating frames are rotatably connected with one side of support frame respectively, two rotating frames are fixedly connected with pivot, and the other end of two rotating frames is hingedly connected with the bottom of mounting plate, so as to realize the storage and lifting of mounting plate.

[0011] In a possible design, the driving assembly comprises a fixed frame fixedly installed on the inner wall of one side of the support frame, a first motor fixedly installed in the fixed frame, a first screw rod lifter fixedly installed at one end of the first motor, and an input shaft of the first screw rod lifter fixedly connected with an output shaft of the first motor, the first motor being used to push out and retract a screw rod in the first screw rod lifter; and a connecting convex shaft fixedly sleeved on the outer wall of the rotating shaft, and one end of the screw rod of the first screw rod lifter being rotationally connected with a protruding part of the connecting convex shaft, the connecting convex shaft being used to drive the rotating frame to rotate.

[0012] In a possible design, the driving assembly further comprises a second motor fixedly installed on the bottom of the mounting plate, a second screw rod lifter fixedly installed at one end of the second motor, and an input shaft of the second screw rod lifter fixedly connected with an output shaft of the second motor, the second motor being used to push out and retract a screw rod in the second screw rod lifter; and the screw rod of the second screw rod lifter being fixedly connected with the bottom of the movable part of the telescopic support, the second screw rod lifter being used to push out and retract the leg support plate.

[0013] In the application, when in use, a user can install and fix the mounting frame on the front side of the seat body; when the user needs to open the leg rest, the user can start the first motor, the first motor can control the screw rod of the first screw rod lifter to push out, and the screw rod of the first screw rod lifter can drive the rotating shaft to rotate through the connecting convex shaft when moving, thereby driving the mounting plate to flip and rotate, and the leg support plate can provide support for the legs of the user; when the user needs to adjust the range of support, the user only needs to start the second motor, the second motor can control the screw rod of the second screw rod lifter to extend and push the leg support plate to move outward, so as to increase the area of the leg support plate for providing support for the legs of the user, thereby facilitating the use of users of different sizes; when the leg rest is not needed, the user can again drive the mounting plate to rotate and retract through the driving assembly, and the movable part of the telescopic support can also slide and retract into the fixed part, so that the leg rest can be compactly stored, space is saved, and the user can normally use the seat.

[0014] Beneficial effects: in the application, the anti-pinch hand and leg rest mechanism is provided with the arc-shaped baffle formed by bending the side edge of the leg support plate downward, the edges of the mounting plate and the telescopic support are effectively covered, the phenomenon of pinching hands during the extension and storage of the leg rest is avoided, and the safety of the user is greatly improved.

[0015] The anti-pinch hand leg support mechanism, the movable part and the fixed part of the telescopic support are slidably connected, the accurate adjustment can be conducted according to the leg length and the sitting posture requirement of the user, and the leg support plate can always provide stable and comfortable support for the user;

[0016] In the anti-pinch hand leg support mechanism, the movable part and the fixed part of the telescopic support are slidably connected, the accurate adjustment can be conducted according to the leg length and the sitting posture requirement of the user, and the leg support plate can always provide stable and comfortable support for the user;

[0017] In the anti-pinch hand leg support mechanism, the movable part and the fixed part of the telescopic support are slidably connected, the accurate adjustment can be conducted according to the leg length and the sitting posture requirement of the user, and the leg support plate can always provide stable and comfortable support for the user; BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a three-dimensional structure schematic diagram under the opening state of the anti-pinch hand leg support mechanism.

[0019] Figure 2 The utility model provides a three-dimensional structure schematic diagram under the closing state of the anti-pinch hand leg support mechanism.

[0020] Figure 3 The utility model provides a split structure schematic diagram of the anti-pinch hand leg support mechanism.

[0021] Figure 4 The utility model provides a movable state display structure schematic diagram of the anti-pinch hand leg support mechanism.

[0022] In the figure: 1, mounting frame;2, mounting plate;3, telescopic support;4, leg support plate;5, support frame;6, fixed frame;7, pivot;8, connecting convex shaft;9, rotating frame;10, first motor;11, first screw rod elevator;12, second motor;13, second screw rod elevator. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0024] Embodiment 1: Refer to Figures 1-4 A leg support mechanism, comprising: a mounting frame 1, a mounting plate 2, a telescopic support 3 and a leg support plate 4.

[0025] One end of the mounting frame 1 is hingedly connected with the mounting plate 2, and the top of the mounting plate 2 is provided with the telescopic support 3. The telescopic support 3 is composed of a movable part and a fixed part, and the movable part and the fixed part are slidingly connected. The bottom of the fixed part of the telescopic support 3 is fixedly connected with the top of the mounting plate 2. The top of the movable part of the telescopic support 3 is fixedly provided with the leg support plate 4, which is used to provide support for the user's legs.

[0026] In order to prevent the edge gap of the mounting plate 2, the telescopic support 3 and the leg support plate 4 from causing a hand clamping phenomenon, in the embodiment, the side edge of the leg support plate 4 is bent downward to form an arc-shaped baffle, which covers the edges of the mounting plate 2 and the telescopic support 3.

[0027] In the embodiment, the mounting frame 1 is composed of a support frame 5, a rotating shaft 7 and a rotating frame 9. The rotating shaft 7 is arranged at one end of the support frame 5 and penetrates the support frame 5. One end of the support frame 5 is provided with two rotating frames 9, and the two rotating frames 9 are rotatably connected with one side of the support frame 5 and fixedly connected with the rotating shaft 7. The other end of the two rotating frames 9 is hingedly connected with the bottom of the mounting plate 2, so as to realize the storage and lifting of the mounting plate 2.

[0028] In addition, the mechanism also includes a driving assembly for realizing the rotation and lifting of the mounting plate 2 and the horizontal pushing out of the leg support plate 4.

[0029] The present application can be used in the field of seat leg support technology, and can also be used in other fields applicable to the present application.

[0030] Embodiment 2: Refer to Figure 3 On the basis of embodiment 1, a hand clamping prevention leg support mechanism is applied to the field of seat leg support technology.

[0031] Further, in the embodiment, the driving assembly comprises a fixed frame 6 fixedly installed on the inner wall of one side of the support frame 5, and a first motor 10 is fixedly installed in the fixed frame 6. One end of the first motor 10 is fixedly installed with a first screw rod lifter 11, and the output shaft of the first motor 10 is fixedly connected with the input shaft of the first screw rod lifter 11. The first motor 10 is used to realize the extension and retraction of the screw rod in the first screw rod lifter 11. The outer wall of the rotating shaft 7 is fixedly sleeved with a connecting convex shaft 8, and one end of the screw rod of the first screw rod lifter 11 is rotatably connected with the protruding part of the connecting convex shaft 8, so as to drive the rotating frame 9 to rotate.

[0032] In addition to the first motor 10 and the first screw rod lifter 11 described above, in the embodiment, the driving assembly further comprises a second motor 12 fixedly installed on the bottom of the mounting plate 2. One end of the second motor 12 is fixedly installed with a second screw rod lifter 13, and the output shaft of the second motor 12 is fixedly connected with the input shaft of the second screw rod lifter 13. The second motor 12 is used to realize the extension and retraction of the screw rod in the second screw rod lifter 13. One end of the screw rod of the second screw rod lifter 13 is fixedly connected with the bottom of the movable part of the telescopic support 3, so as to drive the leg support plate 4 to extend and retract.

[0033] However, as known to those skilled in the art, the working principle and wiring method of the first motor 10 and the second motor 12 are common, which belong to conventional means or common knowledge, and will not be described here. Those skilled in the art can make any selection according to their needs or convenience.

[0034] The working principle and use process of the technical solution are as follows: when in use, the user can install and fix the mounting frame 1 on the front side of the seat body; when the user needs to open the leg support, the user can start the first motor 10, the first motor 10 can control the screw rod of the first screw rod lifter 11 to extend, the screw rod of the first screw rod lifter 11 can drive the rotating shaft 7 to rotate through the connecting convex shaft 8, and then the rotating frame 9 can drive the mounting plate 2 to flip, the rotation of the mounting plate 2 is completed, and the leg support plate 4 can provide support for the user's legs at this time; when the user needs to adjust the range of support, only the second motor 12 needs to be started, the second motor 12 can control the screw rod of the second screw rod lifter 13 to extend and push the leg support plate 4 to move outward, so as to increase the area of the support provided to the user's legs, and the use requirements of users of different sizes can be conveniently met; when the leg support is not needed, the user can again drive the mounting plate 2 to rotate and retract through the driving assembly, and the movable part of the telescopic support 3 can also slide and retract into the fixed part, so that the leg support can be compactly stored, space is saved, and the user can conveniently use the seat normally.

[0035] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pinch-guarding leg-hold support mechanism, characterized by, The utility model relates to a kind of installation frame, including: Mounting frame (1), one end of the mounting frame (1) is hinged with mounting plate (2), the top of the mounting plate (2) is provided with telescopic support (3), the telescopic support (3) is composed of movable part and fixed part, the movable part is slidably connected between the fixed part, the fixed part bottom of the telescopic support (3) is fixedly connected with the top of mounting plate (2), the movable part top of the telescopic support (3) is fixedly installed with leg support plate (4), the leg support plate (4) is used to provide support to the leg of user; The side of the leg support plate (4) is curved downward to form an arc baffle, the leg support plate (4) is covered by the arc baffle to the edge of mounting plate (2) and telescopic support (3) to prevent the edge gap of mounting plate (2), telescopic support (3), leg support plate (4) from appearing pinch hand phenomenon; Further including drive assembly, the drive assembly is used to realize the horizontal push-out of mounting plate (2) and leg support plate (4) of rotating lifting.

2. The anti-pinch gate mechanism of claim 1, wherein, The mounting frame (1) is composed of support frame (5), pivot (7) and rotating frame (9), the pivot (7) is arranged at one end of support frame (5), the pivot (7) rotates through support frame (5), one end of the support frame (5) is provided with two rotating frames (9), two rotating frames (9) are rotatably connected with one side of support frame (5) respectively, two rotating frames (9) are fixedly connected with pivot (7), the other end of two rotating frames (9) is hingedly connected with the bottom of mounting plate (2), for realizing the storage and lifting of mounting plate (2).

3. The anti-pinch gate mechanism of claim 2, wherein, The drive assembly includes fixed frame (6) fixedly installed on the inner wall of one side of support frame (5), the first motor (10) is fixedly installed in the fixed frame (6), the first motor (10) is fixedly installed with first screw rod elevator (11) at one end, the output shaft one end of the first motor (10) is fixedly connected with the input shaft of first screw rod elevator (11), the first motor (10) is used to realize the push-out and retraction of the screw rod in first screw rod elevator (11);The outer wall of the pivot (7) is fixedly provided with connecting convex shaft (8), the screw rod one end of the first screw rod elevator (11) is rotatably connected with the protruding part of connecting convex shaft (8), for driving rotating frame (9) to rotate.

4. The anti-pinch gate mechanism of claim 3, wherein, The drive assembly further includes second motor (12) fixedly installed on the bottom of mounting plate (2), the second motor (12) is fixedly installed with second screw rod elevator (13) at one end, the output shaft one end of the second motor (12) is fixedly connected with the input shaft of second screw rod elevator (13), the second motor (12) is used to realize the push-out and retraction of the screw rod in second screw rod elevator (13);The screw rod one end of the second screw rod elevator (13) is fixedly connected with the bottom of movable part of telescopic support (3), for realizing the push-out and retraction of leg support plate (4).

Images