Seat bracket with anti-pinch structure

Abstract

The utility model discloses a seat support with an anti-pinch structure, a support main body comprises a first support structure and a second support structure, the side edge of the first support structure and the side edge of the second support structure are respectively provided with a connecting rod structure I and a connecting rod structure II which is telescopic towards the front part of the support main body, a second connecting rod structure is arranged on the first transverse support, an anti-pinch protection plate is arranged on the outer side of the second connecting rod structure, a linear driving mechanism drives the first support structure and the second support structure to move, so that the second connecting rod structure is unfolded, the sitting and lying posture of the seat is changed, and the middle of the second transverse support arches upwards to form a mounting support. After the mounting support is mounted, the overall height of the seat sinks, a human body is better wrapped in different sitting and lying postures, the protective baffle covers a gap between the connecting rods in the unfolding state of the second connecting rod structure, and the situation that when the second connecting rod structure retracts the leg supporting frame, the gap between the connecting rods clamps the human hand is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat furniture, in particular to a 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: when the telescopic support is expanded and contracted, there is no anti-pinch structure between the supports, 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 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 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 connecting rod structure one for supporting, and a connecting rod structure two extending towards the front of the support body, the outer side of the connecting rod structure two is provided with an anti-pinch guard plate;

[0006] The first support structure comprises a first transverse support and a first longitudinal support and a second longitudinal support arranged at both ends of the first transverse support, and the second support structure comprises a second transverse support and a third longitudinal support and a fourth longitudinal support arranged at both ends of the second transverse support;

[0007] A linear drive mechanism is connected between the first transverse support and the second transverse support, and the middle part of the second transverse support is arched upward to form a mounting seat.

[0008] As an improvement of the above scheme, the number of connecting rod structures one is two groups, which are connected with the first longitudinal support and the third longitudinal support, the second longitudinal support and the fourth longitudinal support respectively.

[0009] As an improvement of the above scheme, the connecting rod structure one comprises a V-shaped connecting rod and a strip-shaped connecting rod, the two ends of the strip-shaped connecting rod are hingedly connected with the side edges of the first support structure and the second support structure respectively, the two ends of the V-shaped connecting rod are hingedly connected with the side edges of the first support structure and the second support structure respectively, and the bending part of the V-shaped connecting rod is hingedly connected with the connecting rod structure two.

[0010] As an improvement of the above scheme, the connecting rod structure two is arranged in pairs, the end part of the connecting rod structure two is provided with a leg support frame with an L-shaped cross section, the connecting rod structure two comprises a first cross connecting rod and a second cross connecting rod connected with the leg support frame, the outer side end surface of the second cross connecting rod is provided with the anti-pinch guard plate, and the bottom of the leg support frame is in an arc shape.

[0011] As an improvement of the above scheme, the connecting rod structure two further comprises a third cross connecting rod hingedly connected with the front end of the first support structure, and a fourth cross connecting rod hingedly connected with the second cross connecting rod.

[0012] The other end of the third cross connecting rod is hingedly connected with the first cross connecting rod, and one end of the fourth cross connecting rod is hingedly connected with the second cross connecting rod.

[0013] As an improvement of the above scheme, the connecting rod structure two further comprises a fifth cross connecting rod hingedly connected with the connecting rod structure one, the rear end of the second support structure is connected with a seat support, the seat support is hingedly connected with the rear end of the second support structure and the middle part of the fourth cross connecting rod.

[0014] As an improvement of the above scheme, the linear driving mechanism is a telescopic air cylinder, the rear end of the linear driving mechanism is hingedly connected with the middle part of the second transverse support, and the other end is hingedly connected with the middle part of the first transverse support.

[0015] The linear driving mechanism drives the first support structure and the second support structure to move, so as to unfold the connecting rod structure two and the seat support, change the sitting and lying posture of the seat, the middle part of the second transverse support is arched upwards to form a mounting support, compared with the conventional seat support with a horizontally arranged support, the mounting support is lowered in the overall height of the installed seat, and better coverage of the human body is generated in different sitting and lying postures, the anti-pinch guard plate covers the gaps between the connecting rods in the unfolded state of the connecting rod structure two, and the gaps between the connecting rods are prevented from clamping hands when the connecting rod structure two is contracted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the support main body structure of the utility model.

[0017] Figure 2 It is Figure 1A part of the structure of the middle enlarged schematic view.

[0018] Figure 3 The second structure of the connecting rod structure of the utility model is a schematic view.

[0019] Wherein: the first support structure 1, the first horizontal support 11, the first longitudinal support 12, the second longitudinal support 13, the second support structure 2, the second horizontal support 21, the third longitudinal support 22, the fourth longitudinal support 23, the first connecting rod structure 3, the V-shaped connecting rod 31, the strip-shaped connecting rod 32, the second connecting rod structure 4, the first cross connecting rod 41, the second cross connecting rod 42, the third cross connecting rod 43, the fourth cross connecting rod 44, the fifth cross connecting rod 45, the sixth cross connecting rod 46, the anti-pinch guard plate 5, the leg support frame 6, the linear drive mechanism 7, the mounting support 8, the seat support 9. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are not limited to the following examples, and the utility model relates to the necessary components related to the technical field, and should be regarded as the known technology in the technical field, which can be known and mastered by the technical personnel in the technical field.

[0021] As Figures 1 to 3 The utility model discloses a seat support with anti-pinch structure, including the support main part, the support main part includes the first support structure 1 and the second support structure 2 of the layering arrangement from top to bottom, the side of first support structure 1 with the side of second support structure 2 is equipped with the first connecting rod structure 3 for supporting to the second connecting rod structure 4 of the telescopic towards the support main part front part, the outside of connecting rod structure two 4 is equipped with anti-pinch guard plate 5.

[0022] The utility model discloses on the support main part structure, the support main part includes the first support structure 1 and the second support structure 2 of the layering arrangement from top to bottom, the first support structure 1 includes the first horizontal support 11 and sets up the first longitudinal support 12 and the second longitudinal support 13 in the both ends of first horizontal support 11, and the second support structure 2 includes the second horizontal support 21 and sets up the third longitudinal support 22 and the fourth longitudinal support 23 in the both ends of second horizontal support 21.

[0023] The first longitudinal support 12 and the third longitudinal support 22 are aligned, the second longitudinal support 13 and the fourth longitudinal support 23 are aligned, the number of the linkage structure one 3 is two groups, which are symmetrically arranged on both sides of the support body, the linkage structure one 3 is used for connecting the first longitudinal support 12 and the third longitudinal support 22 and the second longitudinal support 13 and the fourth longitudinal support 23, a linear drive mechanism 7 is arranged between the first transverse support 11 and the second transverse support 21, under the drive of the linear drive mechanism 7, the first support structure 1 moves towards the front part of the support body, so that the linkage structure two is unfolded and stretched out of the seat support 9;

[0024] It should be noted that the first support structure 1 is installed for bearing the seat cushion of a human body, the second support structure 2 is connected with a lifting cylinder of a seat and is used for driving the height of the seat body, wherein, in the second support structure 2, the middle part of the second transverse support 21 is arched upwards to form a mounting support 8, the mounting support 8 is used for being connected with the output end of the lifting cylinder, the middle part of the transverse support is arched upwards, and both ends are bent downwards, compared with the conventional horizontal transverse support, the mounting support 8 of the technical scheme is sunken in the overall height of the seat after installation, and better covering is generated to the human body in different sitting and lying postures.

[0025] Further, in the above scheme, the number of the linkage structure one 3 is two groups, which are respectively connected with the first longitudinal support 12 and the third longitudinal support 22 and the second longitudinal support 13 and the fourth longitudinal support 23, the linkage structure one 3 is connected with the linkage structure two 4, under the drive of the linear drive mechanism 7, the linkage structure one is swung, and the linkage structure two 4 is simultaneously expanded and contracted.

[0026] Further, in the above scheme, the linkage structure one 3 comprises a V-shaped linkage 31 and a strip-shaped linkage 32, both ends of the strip-shaped linkage 32 are respectively hinged with the side edges of the first support structure 1 and the second support structure 2, both ends of the V-shaped linkage 31 are respectively hinged with the side edges of the first support structure 1 and the second support structure 2, and the bending part of the V-shaped linkage 31 is hinged with the linkage structure two 4;

[0027] In the technical scheme of the linkage structure one 3 of the utility model, it should be noted that the first longitudinal support 12, the third longitudinal support 22 and the V-shaped linkage 31 and the strip-shaped linkage 32 are connected to form a rectangular transmission structure, under the drive of the linear drive, the first longitudinal support 12 moves forward, and the first longitudinal support 12, the third longitudinal support 22, the V-shaped linkage 31 and the strip-shaped linkage 32 are transformed from the rectangular transmission structure into a parallelogram rotating structure;

[0028] Further, in the above scheme, the link structure two 4 is arranged in pairs, and the end of the link structure two 4 is provided with a leg support frame 6 in L-shaped cross section, the link structure two 4 includes a first cross link 41 and a second cross link 42 connected with the leg support frame 6, the outer side end surface of the second cross link 42 is provided with the anti-pinch guard plate 5, and the bottom of the leg support frame 6 is in arc shape;

[0029] It should be noted that, under the driving of the linear drive mechanism 7, the link structure two 4 is converted from the retracted state to the expanded state, the anti-pinch guard plate 5 covers the outwardly extending support rod part of the link structure two 4, preventing foreign matter from entering the gap between the support rods during the expansion and retraction of the link structure two 4, and further, the position between the leg support frame 6 and the link structure two 4 which is not covered by the anti-pinch guard plate 5 is designed in arc shape at the bottom of the leg support frame 6, which is advantageous for preventing the formation of a hand clamping structure compared with the traditional straight scissor design.

[0030] Further, in the above scheme, the link structure two 4 further includes a third cross link 43 hingedly connected to the front end of the first support structure 1, and a fourth cross link 44 hingedly connected to the front end of the second support structure 2;

[0031] The other end of the third cross link 43 is hingedly connected to the first cross link 41, and the middle part of the third cross link 43 is hingedly connected to the middle part of the second cross link 42 to form a cross structure;

[0032] One end of the fourth cross link 44 is hingedly connected to the second cross link 42, the other end of the fourth cross link 44 is hingedly connected to the fifth cross link 45, and the middle part of the fourth cross link 44 is connected with the seat support 9 through a sixth cross link 46;

[0033] Further, in the above scheme, the link structure two 4 further includes a fifth cross link 45 hingedly connected to the V-shaped link 31, the rear end of the second support structure 2 is connected with a seat support 9, the seat support 9 is hingedly connected to the rear end of the second support structure 2 and to the middle part of the fourth cross link 44, and when the link structure two 4 extends forward, the seat support 9 synchronously tilts backward.

[0034] Further, in the above scheme, the linear drive mechanism 7 is a telescopic cylinder, the rear end of the linear drive mechanism 7 is hingedly connected to the middle part of the second transverse support 21, and the other end is hingedly connected to the middle part of the first transverse support 11.

[0035] It should be noted that the linear drive mechanism 7 drives the V-shaped support rod to swing, driving the rear end of the fifth cross support rod to press down, and the front end of the fifth cross support rod drives the rear end of the fourth cross support rod to rotate, so that the front end of the fourth cross support rod extends forward, and then the first cross support rod and the third cross support rod are unfolded through the second cross support rod to complete the unfolding of the leg support frame 6.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A seat bracket with an anti-pinch structure, characterized in that: The invention comprises a support body, wherein the support body comprises a first support structure (1) and a second support structure (2) stacked from top to bottom, a first connecting rod structure (3) for supporting is provided on the side of the first supporting structure (1) and the side of the second supporting structure (2), and a second connecting rod structure (4) extending toward the front of the support body, and an anti-pinch guard plate (5) is provided on the outer side of the second connecting rod structure (4); The first support structure (1) comprises a first transverse support (11) and a first longitudinal support (12) and a second longitudinal support (13) arranged at both ends of the first transverse support (11); the second support structure (2) comprises a second transverse support (21) and a third longitudinal support (22) and a fourth longitudinal support (23) arranged at both ends of the second transverse support (21); A linear drive mechanism (7) is connected between the first transverse bracket (11) and the second transverse bracket (21), and the middle portion of the second transverse bracket (21) is arched upward to form a mounting support (8).

2. The seat bracket with an anti-pinch structure according to claim 1, characterized in that: The number of the connecting rod structure one (3) is two groups, which respectively connect the first longitudinal bracket (12) and the third longitudinal bracket (22), and the second longitudinal bracket (13) and the fourth longitudinal bracket (23).

3. The seat bracket with an anti-pinch structure according to claim 1, characterized in that: The connecting rod structure 1 (3) comprises a V-shaped connecting rod (31) and a strip connecting rod (32), the two ends of the strip connecting rod (32) are respectively hinged to the side of the first support structure (1) and the side of the second support structure (2), the two ends of the V-shaped connecting rod (31) are respectively hinged to the side of the first support structure (1) and the side of the second support structure (2), and the bending part of the V-shaped connecting rod (31) is hinged to the connecting rod structure 2 (4).

4. The seat bracket with an anti-pinch structure according to claim 1, characterized in that: The second connecting rod structure (4) is arranged in pairs, and the end of the second connecting rod structure (4) is provided with a leg support frame (6) with an L-shaped cross section. The second connecting rod structure (4) comprises a first cross connecting rod (41) and a second cross connecting rod (42) connected to the leg support frame (6). The outer end surface of the second cross connecting rod (42) is provided with the anti-pinch guard plate (5), and the bottom of the leg support frame (6) is arc-shaped.

5. The seat bracket with an anti-pinch structure according to claim 4, characterized in that: The second link structure (4) further includes a third cross link (43) hinged to the front end of the first support structure (1), and a fourth cross link (44) hinged to the second cross link (42); The other end of the third cross link (43) is hinged to the first cross link (41), and one end of the fourth cross link (44) is hinged to the second cross link (42).

6. The seat bracket with an anti-pinch structure according to claim 5, characterized in that: The second connecting rod structure (4) further comprises a fifth cross connecting rod (45) hinged to the first connecting rod structure (3); the rear end of the second support structure (2) is connected to a seat support (9); the seat support (9) is hinged to the rear end of the second support structure (2) and to the middle of the fourth cross connecting rod (44).

7. The seat bracket with an anti-pinch structure according to claim 1, characterized in that: The linear drive mechanism (7) is a telescopic cylinder, the rear end of the linear drive mechanism (7) is hinged to the middle of the second transverse bracket (21), and the other end is hinged to the middle of the first transverse bracket (11).

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