Bidirectional adjusting seat bracket with anti-pinch structure

Abstract

The utility model discloses a two-way adjusting seat support with an anti-pinch structure, a support main body comprises a first support structure and a second support structure which are stacked from top to bottom, and a first linear driving mechanism drives a first transverse connecting rod to extend forwards; when the first transverse connecting rod extends forwards, the connecting rod structures connected with the two ends are unfolded, so that the leg supporting frame and the leg extending support are unfolded, the second linear driving mechanism drives the second transverse connecting rod to extend backwards, and the back support is unfolded; the first linear driving mechanism and the second linear driving mechanism independently adjust the leg supporting frame and the back support respectively, the anti-pinch protection plate covers a gap between the connecting rods when the connecting rod structure is in an unfolded state, and the situation that when the connecting rod structure retracts the leg supporting frame, the gap between the connecting rods pinches the human hands is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat furniture, in particular to a bidirectional adjustment seat support with anti-pinch structure. BACKGROUND

[0002] With the development of society and the progress of science and technology, more and more office workers choose the office chair with adjustable backrest, the office chair with adjustable backrest can be used by the user in the working stage, and can also be used by the user as daily office rest, therefore, the office chair with adjustable backrest is loved by most office workers;

[0003] Among them, the multifunctional seat is a kind of seat product capable of switching to different forms to provide multiple sitting and lying postures, the multifunctional seat has three forms of sitting posture, leisure posture and relaxation posture, this type of multifunctional seat is equipped with a lifting frame for executing automatic lifting and automatic descending functions, the hip leg frame responsible for bearing the weight of the user in the multifunctional seat is fixedly installed on the lifting frame and synchronously moves with the lifting frame, and the problem of this type of multifunctional seat is that the leg support is expanded synchronously when the back support of part of the multifunctional seat is adjusted to recline, the leg support and the back support cannot be expanded alone, and there is no anti-pinch structure between the supports when the telescopic support is expanded and contracted, and children are likely to be injured when they stretch their hands into the crossed supports out of curiosity SUMMARY

[0004] In view of the technical defects in the background art, the utility model provides a bidirectional adjustment seat support with anti-pinch structure, which solves the above technical problems and meets the actual needs, and the specific technical scheme is as follows:

[0005] A bidirectional adjustment seat support with anti-pinch structure, comprising a support body, the support body comprises a first support structure and a second support structure stacked from top to bottom, the side edges of the first support structure and the side edges of the second support structure are provided with a plurality of connecting rods for support;

[0006] The front end of the first support structure is provided with a forwardly extending expansion connecting rod structure, the outer side of the connecting rod structure is provided with an anti-pinch guard plate, and the rear end of the first support structure is provided with a back support;

[0007] A first linear drive mechanism for driving the expansion of the connecting rod structure is connected between the second support structure and the connecting rod structure, and a second linear drive mechanism for adjusting the expansion state of the back support is connected between the second support structure and the back support;

[0008] The end of the connecting rod structure is provided with a leg support frame and a leg extension support frame with an L-shaped cross section.

[0009] As an improvement of the above-mentioned solution, the first support structure comprises a first longitudinal support and a second longitudinal support arranged in parallel above the second support structure, the rear ends of the first longitudinal support and the second longitudinal support are hinged to the back support.

[0010] As an improvement of the above-mentioned solution, the second support structure comprises a transverse support and a third longitudinal support and a fourth longitudinal support arranged at both ends of the transverse support, the first linear drive mechanism and the second linear drive mechanism are both hinged to the transverse support.

[0011] As an improvement of the above-mentioned solution, the link structure is arranged in pairs, respectively arranged at the front ends of the first longitudinal support and the second longitudinal support, the output end of the first linear drive mechanism is connected with a first transverse link, both ends of the first transverse link are respectively connected with the link structures on both sides.

[0012] As an improvement of the above-mentioned solution, the back supports are arranged in pairs, respectively hinged to the rear ends of the first longitudinal support and the second longitudinal support, the output end of the second linear drive mechanism is connected with a second transverse link, both ends of the second transverse link are respectively connected with the bottoms of the back supports on both sides.

[0013] As an improvement of the above-mentioned solution, the link structure comprises a first cross link, a second cross link, a third cross link and a fourth cross link arranged between the first support structure and the leg support frame;

[0014] The first cross link is hinged to the bottom of the leg support frame at a position close to the end, the front end of the first cross link is hinged to the leg extension support, the rear end of the first cross link is hinged to the front end of the third cross link;

[0015] The front end of the second cross link is hinged to the rear end of the leg support frame, the rear end of the second cross link is hinged to the front end of the fourth cross link, the outer end surface of the second cross link is provided with the anti-pinch guard plate.

[0016] As an improvement of the above-mentioned solution, the rear end of the third cross link is hinged to the front end of the first support structure, the middle part of the third cross link is hinged to the middle part of the second cross link, the rear end of the fourth cross link is hinged to the front end of the first support structure.

[0017] As an improvement of the above-mentioned solution, the leg extension support comprises a first extension support hinged to the front end of the leg support frame and a second extension support hinged to the front end of the first cross link, the front end of the first extension support is hinged to the middle part of the second extension support.

[0018] The utility model has the beneficial effect that first linear drive mechanism drives first transverse connecting rod forward extension, the forward extension of first transverse connecting rod will both ends connecting connecting rod structure unroll, thereby realize the unrolling of leg support frame and leg extension support, second linear drive mechanism drives second transverse connecting rod rearward extension, will back support unroll, first linear drive mechanism and second linear drive mechanism realize individual adjustment to leg support frame and back support respectively, the anti -jam guard board covers the gap between connecting rod in the unrolling state of connecting rod structure, avoid when connecting rod structure contracts leg support frame, the gap between connecting rod pinch the hand. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the schematic diagram of the support main body structure of the utility model.

[0020] Figure 2 It is Figure 1 It is the enlarged schematic diagram of A part structure in the second.

[0021] Figure 3 It is the unrolling state schematic diagram of connecting rod structure of the utility model.

[0022] Among them: first support structure 1, first longitudinal support 11, second longitudinal support 12, second support structure 2, transverse support 21, third longitudinal support 22, fourth longitudinal support 23, connecting rod 3, connecting rod structure 4, first cross connecting rod 41, second cross connecting rod 42, third cross connecting rod 43, fourth cross connecting rod 44, anti -jam guard board 5, back support 6, first linear drive mechanism 7, first transverse connecting rod 71, second linear drive mechanism 8, second transverse connecting rod 81, leg support frame 9, leg extension support 10, first extension support 101, second extension support 102. DETAILED DESCRIPTION

[0023] The embodiment of the utility model is explained below in combination with the drawings and relevant examples, and the embodiment of the utility model is not limited to the following examples, and the utility model relates to the necessary components of the related technical field, should be regarded as the known technology in the technical field, is the technology that the technical personnel in the technical field can know and master.

[0024] A two-way adjustable seat support with anti-pinch structure, including support body, the support body includes first support structure 1 and second support structure 2 by upper and down layering arrangement, the side of first support structure 1 and the side of second support structure 2 are equipped with several connecting rods 3 for support;

[0025] The utility model discloses a support main part's mechanism, the support main part includes by the first support structure 1 and second support structure 2 of the upper layer of setting, the first support structure 1 includes the first longitudinal support 11 and second longitudinal support 12 being arranged in parallel on the second support structure 2, the second support structure 2 includes the third longitudinal support 22 and fourth longitudinal support 23 of setting in the both ends of second transverse support 21, and the first longitudinal support 11 is connected with the third longitudinal support 22 between, and the second longitudinal support 12 is connected with the third longitudinal support 22 between and is equipped with the connecting rod 3 of hinging with it.

[0026] The quantity of connecting rod 3 is 4, and is arranged in pairs on the both sides of first support structure 1 and second support structure 2 respectively, and the connecting rod 3 is hinged between the first longitudinal support 11 and the third longitudinal support 22 and between the second longitudinal support 12 and the third longitudinal support 22.

[0027] The both ends of transverse support 21 are connected with the third longitudinal support 22 and the fourth longitudinal support 23 respectively, the quantity of transverse support 21 is at least two, and the bottom of first linear drive mechanism 7 and second linear drive mechanism 8 is hinged on transverse support 21.

[0028] The utility model discloses a first support structure 1, the first support structure 1 includes the first longitudinal support 11 and second longitudinal support 12 being arranged in parallel on the second support structure 2, and the front end of first support structure 1 is equipped with the connecting rod structure 4 of extending and spreading out to the front, the outside of connecting rod structure 4 is equipped with anti-pinch guard plate 5, and the rear end of first support structure 1 is equipped with back support 6.

[0029] It should be noted that the output end of first linear drive mechanism 7 is connected with first transverse connecting rod 71, the both ends of first transverse connecting rod 71 are connected with connecting rod structure 4 on both sides respectively, and the output end of first linear drive mechanism 7 is hinged with the middle part of first transverse connecting rod 71, so that the output end of first linear drive mechanism 7 is stretched forward, and first transverse connecting rod 71 is moved to the front end and rotated a certain angle in axial direction, so that connecting rod structure 4 is spread out to the front.

[0030] Further, in the above scheme, the back support 6 is arranged in pairs and is hingedly arranged at the rear end of the first longitudinal support 11 and the second longitudinal support 12, the output end of the second linear drive mechanism 8 is connected with the second transverse connecting rod 81, and the both ends of the second transverse connecting rod 81 are connected with the bottom of the back support 6 on both sides respectively.

[0031] The rear end of the first support structure 1 is hingedly provided with the back support 6, the middle parts of the two side back supports 6 are respectively hingedly connected with the rear ends of the first longitudinal support 11 and the second longitudinal support 12, the output end of the second linear driving mechanism 8 is provided with a second transverse connecting rod 81 connected with the bottom ends of the two side back supports 6, the output end of the second linear driving mechanism 8 is hingedly connected with the middle part of the second transverse connecting rod 81, and the output end of the second linear driving mechanism 8 drives the second transverse connecting rod 81 to move and rotate by a certain angle in the axial direction while extending forward, so that the back support 6 is moved to shrink forward.

[0032] Further, in the above scheme, a first linear driving mechanism 7 is arranged between the second support structure 2 and the connecting rod structure 4 to drive the connecting rod structure 4 to expand, and a second linear driving mechanism 8 is arranged between the second support structure 2 and the back support 6 to adjust the expansion state of the back support 6, the first linear driving mechanism 7 and the second linear driving mechanism 8 are hingedly connected on the transverse support 21, and the output ends thereof are opposite to each other, the first linear driving mechanism 7 and the second linear driving mechanism 8 are respectively arranged to independently adjust the leg support 9 and the back support 6, so that different posture adjustments of the seat by the user can be met.

[0033] In the technical scheme of the connecting rod structure 4, the connecting rod structure 4 is arranged in pairs and is arranged at the front ends of the first longitudinal support 11 and the second longitudinal support 12, the end part of the connecting rod structure 4 is provided with a leg support 9 and a leg extension support 10 with an L-shaped cross section, and the connecting rod structure 4 is driven by the first linear driving mechanism 7 to expand while extending the leg support 9 and the leg extension support 10;

[0034] Further, in the above scheme, the connecting rod structure 4 comprises a first cross connecting rod 41, a second cross connecting rod 42, a third cross connecting rod 43 and a fourth cross connecting rod 44 arranged between the first support structure 1 and the leg support 9;

[0035] The first cross connecting rod 41 is hingedly connected with the bottom part of the leg support 9 at a position close to the end part, the front end of the first cross connecting rod 41 is hingedly connected with the leg extension support 10, and the rear end of the first cross connecting rod 41 is hingedly connected with the front end of the third cross connecting rod 43;

[0036] The front end of the second cross connecting rod 42 is hingedly connected with the rear end of the leg support 9, the rear end of the second cross connecting rod 42 is hingedly connected with the front end of the fourth cross connecting rod 44, and the outer side end face of the second cross connecting rod 42 is provided with the anti-pinch guard plate 5.

[0037] Further, in the above scheme, the rear end of the third cross link 43 is hinged to the front end of the first support structure 1, the middle part of the third cross link 43 is hinged to the middle part of the second cross link 42, and the rear end of the fourth cross link 44 is hinged to the front end of the first support structure 1.

[0038] It should be noted that the output end of the first linear drive mechanism 7 is connected with the first transverse link 71, the two ends of the first transverse link 71 are connected with the third cross link 43, the first linear drive mechanism drives the first transverse link 71 to stretch forward, drives the third cross link 43 to stretch forward, and drives the first cross link 41 and the second cross link 42 to stretch forward, so as to realize the unfolding of the leg support frame 9 and the leg extension support 10.

[0039] Further, in the above scheme, the leg extension support 10 comprises a first extension support 101 hinged to the front end of the leg support frame 9 and a second extension support 102 hinged to the front end of the first cross link 41, the front end of the first extension support 101 is hinged to the middle part of the second extension support 102, and when the output end of the first linear drive mechanism 7 drives the third cross link 43 to stretch forward, the front end of the first cross link 41 presses the second extension support 102 downward, so as to make the leg extension support 10 rotate to a horizontal unfolded state and support the legs of the user.

[0040] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, some improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A bidirectional adjustable seat support with an anti-pinch structure, characterized by, The support frame includes a support frame body, the support frame body includes a first support structure (1) and a second support structure (2) stacked from top to bottom, and a plurality of connecting rods (3) for support are arranged on the side edges of the first support structure (1) and the second support structure (2); The front end of the first support structure (1) is provided with a connecting rod structure (4) extending forward, the outer side of the connecting rod structure (4) is provided with an anti-pinch guard plate (5), and the rear end of the first support structure (1) is provided with a back support (6); A first linear drive mechanism (7) for driving the connecting rod structure (4) to unfold is arranged between the second support structure (2) and the connecting rod structure (4), and a second linear drive mechanism (8) for adjusting the unfolded state of the back support (6) is arranged between the second support structure (2) and the back support (6); The end of the connecting rod structure (4) is provided with a leg support frame (9) and a leg extension support frame (10) in an L-shaped cross section.

2. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 1, wherein, The first support structure (1) includes a first longitudinal support frame (11) and a second longitudinal support frame (12) arranged in parallel above the second support structure (2), and the rear ends of the first longitudinal support frame (11) and the second longitudinal support frame (12) are hinged to the back support (6).

3. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 1, wherein, The second support structure (2) includes a transverse support frame (21) and a third longitudinal support frame (22) and a fourth longitudinal support frame (23) arranged at both ends of the second transverse support frame (21), and the first linear drive mechanism (7) and the second linear drive mechanism (8) are both hinged to the transverse support frame (21).

4. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 2, wherein, The connecting rod structures (4) are arranged in pairs and are arranged at the front ends of the first longitudinal support frame (11) and the second longitudinal support frame (12), respectively, the output end of the first linear drive mechanism (7) is connected with a first transverse connecting rod (71), and the two ends of the first transverse connecting rod (71) are connected with the connecting rod structures (4) on both sides, respectively.

5. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 2, wherein, The back supports (6) are arranged in pairs and are hingedly arranged at the rear ends of the first longitudinal support frame (11) and the second longitudinal support frame (12), respectively, the output end of the second linear drive mechanism (8) is connected with a second transverse connecting rod (81), and the two ends of the second transverse connecting rod (81) are connected with the bottoms of the back supports (6) on both sides, respectively.

6. The dual adjustment seat bracket with anti-pinch structure according to claim 1, wherein, The connecting rod structure (4) includes a first cross connecting rod (41), a second cross connecting rod (42), a third cross connecting rod (43) and a fourth cross connecting rod (44) arranged between the first support structure (1) and the leg support frame (9); The position close to the end of the first cross connecting rod (41) is hinged to the bottom position of the leg support frame (9), the front end of the first cross connecting rod (41) is hingedly connected to the leg extension support frame (10) by extending forward, and the rear end of the first cross connecting rod (41) is hingedly connected to the front end of the third cross connecting rod (43); The front end of the second cross link (42) is hinged with the rear end of the leg support frame (9), the rear end of the second cross link (42) is hinged with the front end of the fourth cross link (44), and the outer side end surface of the second cross link (42) is provided with the anti-pinch guard plate (5).

7. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 6, wherein, The rear end of the third cross link (43) is hinged with the front end of the first support structure (1), the middle part of the third cross link (43) is hinged with the middle part of the second cross link (42), and the rear end of the fourth cross link (44) is hinged with the front end of the first support structure (1).

8. The bidirectional adjustable seat bracket with an anti-pinch structure according to claim 6, wherein, The leg extension support frame (10) comprises a first extension support frame (101) hinged with the front end of the leg support frame (9) and a second extension support frame (102) hinged with the front end of the first cross link (41), and the front end of the first extension support frame (101) is hinged with the middle part of the second extension support frame (102).

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