Connecting piece with swinging function

Abstract

The utility model discloses a connecting piece with a swinging function. The connecting piece comprises a swinging connecting rod, a first swinging joint, a second swinging joint, a third swinging joint, a joint support, a fixed support, a torsion spring, a positioning plate and a positioning block, a third rotating shaft and a fifth rotating shaft are fixedly connected to the third swinging joint, a first swinging joint is arranged on one side of the third swinging joint, fourth through holes are formed in the outer walls of the two sides of the first swinging joint, and the third rotating shaft is rotationally connected into the fourth through holes; the bionic rotating mechanism which is of a combined structure and is formed by combining a plurality of connecting pieces is designed, an ergonomic design is simulated, when the bionic rotating mechanism swings backwards, a spring in the bionic rotating mechanism automatically adjusts the front-back position of the waist rest, the waist rest can swing upwards by an angle and is more fit with the waist curve, and fatigue is not prone to happening after long-time sitting; friction force and stress concentration between hard components are reduced through the flexible connecting piece, and the abrasion rate of a mechanical structure is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to swing connecting piece technical field, especially swing function connecting piece. BACKGROUND

[0002] With the increase of sitting office in modern society, exercise rehabilitation demand, the requirement of ergonomics equipment is increasing. The waist supporting part of traditional equipment, such as fixed backrest, rigid waist support has the following technical defects. One is static support limitation, traditional waist support only provides passive support of fixed angle, cannot dynamically adjust with natural swing of human body, leading to pressure concentration on waist when sitting for a long time, easy to cause fatigue, muscle fatigue and even lumbar lesion. Two is poor user experience, fixed design is difficult to meet the needs of users of different body shapes, and the personalized adjustment ability is limited. The lack of dynamic support function leads to frequent adjustment of sitting posture by users to relieve discomfort, reducing the comfort of equipment use. INVENTION CONTENTS

[0003] The utility model aims at providing a swing function connecting piece to solve the problems in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical scheme: a swing function connecting piece, including third swing joint, third swing joint is fixedly connected with third rotating shaft and fifth rotating shaft, one side of third swing joint is provided with first swing joint, fourth through hole is formed in the outer wall on both sides of first swing joint, and third rotating shaft is rotatably connected in fourth through hole, first rotating shaft is fixedly connected on first swing joint, one side of first swing joint is provided with joint support, first through hole and second through hole are formed in the outer wall on both sides of joint support, and first rotating shaft is rotatably connected in first through hole, second rotating shaft is rotatably connected in second through hole, second swing joint is fixedly connected with second rotating shaft, third through hole is formed in second swing joint, and fifth rotating shaft is rotatably connected in third through hole.

[0005] As a further technical scheme of the utility model, the fourth rotating shaft is fixedly connected on the third swing joint, the swing connecting rod is arranged on one side of the third swing joint, the fifth through hole is formed in the bottom of the swing connecting rod, and the fourth rotating shaft is rotatably connected in the fifth through hole.

[0006] As a further technical scheme of the utility model, the first positioning column is arranged on the lower surface of the joint support, the positioning block is sleeved with the first positioning column, the positioning groove is formed in the position corresponding to the first positioning column on the positioning block, and the first positioning column is sleeved in the positioning groove.

[0007] As a further technical scheme of the utility model, the second positioning column is arranged on the lower surface of the positioning block.

[0008] As a further technical scheme of the utility model, the second swing joint is fixedly connected with a second rotating shaft, and a torsional spring is sleeved on the second rotating shaft.

[0009] As a further technical scheme of the utility model, the joint support is fixedly connected with a fixed support, the fixed support is threadedly connected with a second screw, and the fixed joint support and the fixed support are connected.

[0010] As a further technical scheme of the utility model, the fixed support is fixedly connected with a positioning plate.

[0011] As a further technical scheme of the utility model, a first threaded hole is formed in the upper surface of the positioning plate, and a first screw is threadedly connected in the first threaded hole to fix the positioning plate on the fixed support.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the utility model is designed with a combined structure, a plurality of connecting pieces are combined into a bionic rotating mechanism, the bionic rotating mechanism simulates an ergonomic design, the bionic rotating mechanism automatically adjusts the position of the waist rest forward and backward while swinging backward, the waist rest has a swinging angle upward, is more fitted to the waist curve, is not easy to fatigue for long sitting, the flexible connecting piece reduces the friction and stress concentration between the hard parts, reduces the wear rate of the mechanical structure, the parts combined into the swing function connecting piece are assembled by a threaded connection process, the force is pre-tightened, installation does not need a clamp, and fast installation can be carried out. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 It is the structure explosion map of the utility model;

[0015] Figure 2 It is Figure 1 It is the enlarged structure schematic view of the A area in the middle;

[0016] Figure 3 It is the whole three-dimensional structure schematic view of the utility model;

[0017] Figure 4 It is the partial three-dimensional structure schematic view of the utility model;

[0018] Figure 5 It is the front view structure schematic view of the joint support of the utility model;

[0019] Figure 6 is a rear view structure schematic view of the swing connecting rod of the utility model;

[0020] Figure 7 is a three-dimensional structure schematic view of the positioning block of the utility model;

[0021] In the figure: 1, swing connecting rod; 2, first swing joint; 3, second swing joint; 4, third swing joint; 5, joint support; 6, fixed support; 7, torsional spring; 8, positioning plate; 9, positioning block; 10, first positioning column; 11, first rotating shaft; 12, second rotating shaft; 13, third rotating shaft; 14, fourth rotating shaft; 15, first screw; 16, first threaded hole; 17, second screw; 18, first through hole; 19, second through hole; 20, fifth rotating shaft; 21, third through hole; 22, fourth through hole; 23, positioning groove; 24, second positioning column; 25, fifth through hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 7The utility model provides an embodiment: a swing function connecting piece, the third swing joint 4 is fixedly connected with third pivot 13 and fifth pivot 20 on the third swing joint 4, one side of third swing joint 4 is provided with first swing joint 2, and fourth through -hole 22 is seted up on the both sides outer wall of first swing joint 2, and third pivot 13 is rotationally connected in fourth through -hole 22, first pivot 11 is fixedly connected on first swing joint 2, and one side of first swing joint 2 is provided with joint support 5, and first through -hole 18 and second through -hole 19 are seted up on the both sides outer wall of joint support 5, and first pivot 11 is rotationally connected in first through -hole 18, and second pivot 12 is rotationally connected in second through -hole 19, and second swing joint 3 is fixedly connected with second pivot 12, and third through -hole 21 is seted up on second swing joint 3, and fifth pivot 20 is rotationally connected in third through -hole 21, fourth pivot 14 is fixedly connected on third swing joint 4, and swing connecting rod 1 is provided on one side of third swing joint 4, and fifth through -hole 25 is seted up on swing connecting rod 1 bottom, and fourth pivot 14 is rotationally connected in fifth through -hole 25, and swing connecting rod 1 is connected with third swing joint 4 through rotation, so that when the human body swings, swing connecting rod 1 adjusts the position with the human body swing and wraps the waist, the lower surface of joint support 5 is provided with first positioning column 10, positioning block 9 is sleeved on first positioning column 10, positioning groove 23 is seted up on the position of positioning block 9 corresponding first positioning column 10, and first positioning column 10 is sleeved in positioning groove 23, and joint support 5 is fixedly connected with positioning block 9, so that the overall connecting piece structure is stable, the lower surface of positioning block 9 is provided with second positioning column 24, and the overall connecting piece has quick installation technology through second positioning column 24, second swing joint 3 is fixedly connected with second pivot 12, torsional spring 7 is sleeved on second pivot 12, and torsional spring 7 automatically adjusts second swing joint 3, so that the position of automatic adjustment waist rest is adjusted, fixed support 6 is fixedly connected in joint support 5, second screw 17 is threadedly connected with fixed support 6, fixed joint support 5 and fixed support 6, and the fixed connection of joint support 5 and fixed support 6 has dynamic flexibility and static stability, positioning plate 8 is fixedly connected with fixed support 6, first threaded hole 16 is seted up on the upper surface of positioning plate 8, first screw 15 is threadedly connected in first threaded hole 16, positioning plate 8 is fixed with fixed support 6, and positioning plate 8 can be fixed on the back support and support the back.

[0024] Working principle: using the utility model, first of all, joint support 5 is fixedly connected on the positioning groove 23 on the upper surface of positioning block 9 through first positioning column 10, then first swing joint 2 is rotatably connected in the first through hole 18 of joint support 5 through first rotating shaft 11, third swing joint 4 is rotatably connected in the fourth through hole 22 of first swing joint 2 through third rotating shaft 13, the fourth rotating shaft 14 of third swing joint 4 is rotatably connected in the fifth through hole 25 of swing connecting rod 1, the fifth rotating shaft 20 of third swing joint 4 is rotatably connected in the third through hole 21 of second swing joint 3, the second rotating shaft 12 of second swing joint 3 is sleeved with torsion spring 7 and the second rotating shaft 12 is rotatably connected in the second through hole 19 of joint support 5, the second screw 17 is used to fix joint support 5 and fixed support 6 between fixed support 6 and joint support 5, the first threaded hole 16 on positioning plate 8 is fixed on fixed support 6 by first screw 15, the assembly of the utility model is completed, and when using, the second positioning column 24 at the bottom of positioning block 9 is fixed at the backrest; second swing joint 3 and third swing joint 4 are rotatably connected, third swing joint 4 is connected with swing connecting rod 1, third swing joint 4 is rotatably connected with first swing joint 2, and first swing joint 2 and second swing joint 3 are rotatably connected on joint support 5, the bionic rotating mechanism combined by multiple connecting pieces, multiple joint cooperative control, joint type rotation makes the user change the sitting posture, and the bionic swing mechanism automatically adjusts the angle, fits the human waist posture change, and reduces the waist pressure.

[0025] In the description of the utility model, it is to explain that, unless there is definite and limited, the term "installation", "connection", "connection" should be broad understanding, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] The device embodiments described above are only schematic, wherein the units illustrated as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. Those skilled in the art can understand and implement without creative labor.

[0027] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A swing function connection comprising a third swing joint (4), characterized in that: The third swing joint (4) is fixedly connected with a third rotating shaft (13) and a fifth rotating shaft (20), one side of the third swing joint (4) is provided with a first swing joint (2), fourth through holes (22) are formed in the outer walls on both sides of the first swing joint (2), and the third rotating shaft (13) is rotatably connected in the fourth through holes (22); the first swing joint (2) is fixedly connected with a first rotating shaft (11), a joint support (5) is arranged on one side of the first swing joint (2), a first through hole (18) and a second through hole (19) are formed in the outer walls on both sides of the joint support (5), the first rotating shaft (11) is rotatably connected in the first through hole (18), a second rotating shaft (12) is rotatably connected in the second through hole (19), and the second rotating shaft (12) is fixedly connected with a second swing joint (3); the second swing joint (3) is provided with a third through hole (21), and the fifth rotating shaft (20) is rotatably connected in the third through hole (21).

2. A swing function connecting member according to claim 1, characterized in that: The third swing joint (4) is fixedly connected with a fourth rotating shaft (14), one side of the third swing joint (4) is provided with a swing connecting rod (1), a fifth through hole (25) is formed in the bottom of the swing connecting rod (1), and the fourth rotating shaft (14) is rotatably connected in the fifth through hole (25).

3. A swing function connecting piece according to claim 1, characterized in that: The lower surface of the joint support (5) is provided with a first positioning column (10), the first positioning column (10) is sleeved with a positioning block (9), a positioning groove (23) is formed in the positioning block (9) at a position corresponding to the first positioning column (10), and the first positioning column (10) is sleeved in the positioning groove (23).

4. A swing function coupling according to claim 3, characterized in that: The lower surface of the positioning block (9) is provided with a second positioning column (24).

5. A swing function connecting member according to claim 1, characterized in that: The second swing joint (3) is fixedly connected with a second rotating shaft (12), and the second rotating shaft (12) is sleeved with a torsional spring (7).

6. A swing function coupling according to claim 3, characterized in that: The joint support (5) is fixedly connected with a fixed support (6), and the fixed support (6) is threadedly connected with a second screw (17).

7. A swing function coupling according to claim 6, characterized in that: The fixed support (6) is fixedly connected with a positioning plate (8).

8. A swing function coupling according to claim 7, characterized in that: The upper surface of the positioning plate (8) is provided with a first threaded hole (16), and the first threaded hole (16) is threadedly connected with a first screw (15).

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