CN216753984U

CN216753984U - Support structure

Info

Publication number: CN216753984U
Application number: CN202220337098.XU
Authority: CN
Inventors: 岑立
Original assignee: Guangdong Baozhigang Trading Co ltd
Current assignee: Guangdong Baozhigang Trading Co ltd
Priority date: 2022-02-20
Filing date: 2022-02-20
Publication date: 2022-06-17
Anticipated expiration: 2032-02-20

Abstract

The utility model discloses a supporting structure which comprises a supporting part, wherein at least one crank mechanism is arranged on one side of the supporting part, the crank mechanism comprises a crank and a crank rod, the crank is eccentrically provided with a connecting point, one end of the crank rod is connected with the connecting point, the other end of the crank rod is connected with one side of the supporting part so as to drive the supporting part to be adjusted along the motion track of the crank rod, and the reciprocating adjustment of the supporting part can relieve muscle fatigue.

Description

Support structure

Technical Field

The utility model belongs to the technical field of supporting systems and auxiliary supporting, and particularly relates to a supporting structure.

Background

The chair is a commonly used article in daily life and work. The height or angle of the hip support part and the backrest can be adjusted in the conventional seat. The height or angle adjustment is typically a linear or arcuate adjustment to the hip support or back rest. It is highly desirable to provide multiple arc three-dimensional movements of the backrest and/or the hip support portion so that the user can exercise at regular time while sitting for a long time, and the lumbar vertebra and the lumbar muscles are comfortable.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a support structure for driving the support portion to adjust along the motion track of the crank rod.

According to a first aspect of the present invention, there is provided a support structure, comprising a support portion, at least one crank mechanism disposed on one side of the support portion, the crank mechanism comprising a crank and a crank rod, the crank being eccentrically disposed with a connection point, one end of the crank rod being connected to the connection point, and the other end of the crank rod being connected to one side of the support portion, so as to actuate the support portion to adjust along the movement trajectory of the crank rod.

In a specific embodiment of the present invention, the number of the crank mechanisms is two, wherein the crank rod of one crank mechanism is connected to the left side of the supporting portion to drive the left side of the supporting portion to adjust along the motion track of the crank rod, and the crank rod of the other crank mechanism is connected to the right side of the supporting portion to drive the right side of the supporting portion to adjust along the motion track of the crank rod.

In a specific embodiment of the utility model, an installation part is arranged beside or behind the supporting part, a first guide structure is arranged on the back side of the supporting part, a first end of the first guide structure is connected with the mass installation part, and a second end of the first guide structure is hinged with the supporting part or is connected with the supporting part in a point-surface contact manner.

In a specific embodiment of the present invention, the first guiding structure includes a first hinge seat disposed on the mounting portion and a second hinge seat disposed on the supporting portion, the second hinge seat is provided with an adjusting groove, and the first hinge seat is provided with a sliding shaft capable of sliding in the adjusting groove.

In a specific embodiment of the present invention, the first guide structure includes a first universal ball head disposed on the mounting portion, a second universal ball head disposed on the support portion, and a ball head shaft connecting the first universal ball head and the second universal ball head.

In a specific embodiment of the utility model, the crank is provided with a sliding groove, the connecting point can slide in the sliding groove, the crank is connected to an output shaft, the output shaft is provided with a limit key, the limit key is provided with a driven part capable of moving along the length direction of the limit key, a connecting rod is arranged between the driven part and the connecting point, and the driven part is further provided with a limit mechanism capable of positioning the driven part at any position of the limit key.

In a specific embodiment of the present invention, a first hinge element and a second hinge element are respectively disposed at two ends of the crank rod, the crank rod is connected to the crank through the first hinge element, the support portion is provided with a limit shaft, and the second hinge element can rotate and slide on the limit shaft.

In a specific embodiment of the present invention, the crank is provided with a limit shaft, a first end of the crank rod is fixedly connected to the support portion, and a second end of the crank rod slides on the limit shaft through the second hinge.

In a specific embodiment of the present invention, the rear side surface of the supporting portion is provided with a second guiding structure, the second guiding structure and the crank mechanism are distributed along a straight line, and a first end of the second guiding structure is hinged to the supporting portion or is connected with the supporting portion through a point-surface contact manner.

In a specific embodiment of the utility model, the rear side of the supporting part is provided with two second guiding structures, and the two second guiding structures and the crank mechanism are distributed in a delta shape.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects: according to the utility model, the crank mechanism is arranged on one side of the supporting part to drive the supporting part to be adjusted along the motion track of the crank rod, and the reciprocating adjustment of the supporting part can relieve muscle fatigue. In addition, the left end and the right end of the rear side of the supporting part are respectively provided with a crank mechanism, the crank rod of one crank mechanism is connected with the left side of the supporting part to drive the left side of the supporting part to be adjusted along the motion track of the crank rod, and the crank rod of the other crank mechanism is connected with the right side of the supporting part to drive the right side of the supporting part to be adjusted along the motion track of the crank rod, so that the adjustment of the left side or/and the right side of the supporting part is realized, and the use experience of a user is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic diagram of a crank mechanism provided in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a two crank mechanism configuration in accordance with an embodiment of the present invention;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic illustration of a support structure disposed at the lumbar region in accordance with an embodiment of the present invention;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a side view of a support structure positioned over the buttocks according to one embodiment of the utility model;

FIG. 7 is a schematic view of a crank mechanism in one embodiment of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Referring to fig. 1, the supporting structure includes a supporting portion 10, and a crank mechanism 11 is provided at one side of the supporting portion 10. The crank mechanism 11 may be disposed at the rear side of the support portion 10. The crank mechanism 11 may be disposed such that a part of the crank mechanism 11 is disposed below the support portion 10 and a part of the crank mechanism 11 extends to the rear side of the support portion 10. The crank mechanism 11 comprises a crank 111 and a crank rod 112, the crank 111 is eccentrically provided with a connecting point, one end of the crank rod 112 is connected with the connecting point, the other end of the crank rod 112 is connected with one side of the support portion 10, the crank rod 112 is located at the central axis position of the support portion 10, the crank 111 is mounted on a motor to drive the crank 111 to rotate, and the crank 111 drives the crank rod 112 to move according to the rotating track of the connecting shaft of the crank 111 to drive the support portion 10 to adjust along the moving track of the crank rod 112. After the back of the user leans against the support portion 10, the support portion 10 is adjusted along the motion track of the crank rod 112 to relieve the muscles of the lumbar and the back of the user, and to relieve fatigue.

Specifically, the rear side surface of the support portion 10 is provided with a second guide structure, the second guide structure is used for assisting in supporting the support portion 10, the second guide structure and the crank mechanism 11 are distributed along a straight line, a first end of the second guide structure is hinged to the support portion 10, and a second end of the second guide structure is hinged to a position ready for installation. Alternatively, the first end of the second guide structure is connected to the support portion 10 by point-surface contact, and the second end of the second guide structure is fixedly connected to a position ready for installation. The location to be installed may be a chair deck, backrest, or other fixed support, etc.

In one embodiment of the present invention, referring to fig. 2 and 3, the number of the crank mechanisms 11 is two, wherein the crank rod 112 of one crank mechanism 11 is connected to the left side of the support portion 10 to drive the left side of the support portion 10 to adjust along the motion track of the crank rod 112, and the crank rod 112 of the other crank mechanism 11 is connected to the right side of the support portion 10 to drive the right side of the support portion 10 to adjust along the motion track of the crank rod 112. Specifically, the left and/or right side of the support portion 10 can be adjusted along the movement path of the crank rod 112 of the first crank mechanism 11 to realize the tilt angle adjustment, and the left and/or right side of the support portion 10 can also be adjusted in angle.

Further, when the two crank mechanisms rotate asynchronously, the front and back inclination angles of the supporting portion 10 are adjusted, so that the supporting portion can move forwards, backwards, leftwards and rightwards, and the waist or the hip of the human body is massaged, so that the muscle fatigue of the person sitting for a long time is relieved.

During the adjustment, the left crank mechanism 11 and the right crank mechanism 11 can be operated independently, and the independent adjustment of the left side or the right side of the support portion 10 is realized. Of course, the left crank mechanism 11 and the right crank mechanism 11 can be adjusted in a communicating manner, so that simultaneous adjustment of two sides is realized, and rotation of the support part 10 around a connecting line of the two crank mechanisms 11 can be realized, so that angle adjustment is realized. Preferably, the left crank mechanism 11 and the right crank mechanism 11 are located on the same straight line. Further, the straight line is parallel to the central axis of the support portion 10.

In one embodiment of the present invention, a mounting portion 12 is disposed beside or behind the supporting portion 10, a first guiding structure 13 is disposed behind the supporting portion 10, a first end of the first guiding structure 13 is hinged to the mounting portion 12, and a second end of the first guiding structure 13 is hinged to the supporting portion 10. Or, a first end of the first guiding structure 13 is fixedly connected with the mounting portion, and a second end of the first guiding structure 13 is connected with the supporting portion 10 in a point-surface contact manner. When the two crank mechanisms 11 are adjusted, the upper side or the lower side of the support portion 10 is adjusted in position by the first guide structure 13, so that the support portion 10 is force-balanced. The motor may be mounted on the mounting portion 12. The mounting portion 12 may be provided behind the support portion 10, or the mounting portion 12 may be provided below the support portion. When the mounting portion 12 is disposed below the supporting portion 10, the crank lever is adaptively adjusted.

In an embodiment of the present invention, the first guiding structure 13 includes a first hinge seat 131 disposed on the mounting portion 12 and a second hinge seat 132 disposed on the supporting portion 10, the second hinge seat 132 is provided with an adjusting groove 134, and the first hinge seat 131 is provided with a sliding shaft 133 capable of sliding in the adjusting groove 134. The adjustment groove 134 is disposed substantially in the vertical direction. During the operation of the crank mechanism 11 to adjust the support portion 10, the sliding shaft 133 slides in the adjustment slot 134 to achieve smooth adjustment of the support portion 10.

In one embodiment of the present invention, the first guiding structure 13 includes a first universal ball head disposed on the mounting portion 12, a second universal ball head disposed on the supporting portion 10, and a ball head shaft connecting the first universal ball head and the second universal ball head. The ball head shaft realizes multi-angle adjustment through the rotation of the first universal ball head and the second universal ball head. Preferably, the length of the ball pivot is greater than the length of the crank rod 112 in the crank mechanism 11 in order to allow smooth adjustment of the backrest.

In one embodiment of the utility model, the first guide structure 13 is replaced by a crank mechanism 11. When the crank mechanism 11 is adopted to replace the first guide structure 13, the second hinge element slides on the limiting shaft to realize smooth adjustment.

In an embodiment of the present invention, a first hinge and a second hinge are respectively disposed at two ends of the crank rod 112, the crank rod 112 is connected to the crank 111 through the first hinge, a limiting shaft is disposed on the support portion 10, and the second hinge can slide on the limiting shaft. The motor drives the crank 111 to rotate, the crank rod 112 moves along with the crank 111, and the second hinge part slides on the limiting shaft to be adjusted to a proper position, so as to adjust the position of the support part 10.

In an embodiment of the present invention, a limit shaft is disposed on the crank 111, a first end of the crank rod 112 is fixedly connected to the support portion 10, a second end of the crank rod 112 slides on the limit shaft through a second hinge, the crank rod 112 moves along with the crank 111, and the second hinge slides on the limit shaft to adjust to a proper position, so as to adjust the position of the support portion 10.

In one embodiment of the utility model, the crank mechanism 11 is provided with two coaxially mounted cranks 111, a connecting shaft is provided between the two eccentric wheels, and the first hinge member is mounted on the connecting shaft. The crank rod 112 is provided with a sufficient supporting force by the two cranks 111 and the connecting shaft.

Of course, the rear side face of the supporting part is provided with two second guide structures, and the two second guide structures and the crank mechanism are distributed in a delta shape.

Referring to fig. 4 and 5, the support structure is disposed at a lumbar location with an L-shaped arrangement between the support structure and the first plate 14. The support portion 10 of the support structure is a back support portion, which is adjusted to fit the back of the user, and the back support portion is adjusted to reciprocate to relieve the muscles of the back of the user. As shown in fig. 6, the support portion 10 of the support structure is a hip support portion, and the support structure and the first plate 14 are arranged in an L-shape to drive the hip support portion to adjust to fit the hip of the user, so as to adjust back and forth to relax the muscles of the hip and waist of the user.

As shown in fig. 7, a sliding groove 113 is formed in the crank 111, the crank 111 is in a disk shape, the connection point can slide in the sliding groove 113, the crank 111 is connected to an output shaft 117, the output shaft 117 is mounted on a motor, a limit key 118 is arranged on the output shaft 117, a driven member 115 which can move along the length direction of the limit key 118 is arranged on the limit key 118, the driven member 115 rotates along with the output shaft 117 through the limit key 118, a connecting rod 114 is arranged between the driven member 115 and the connection point, and the driven member 115 is further provided with a limit mechanism which can position the driven member 115 at any position of the limit key 118. When the crank 111 rotates by adjusting the position of the follower 115 at the limit key 118, the connecting point is driven by the connecting rod 114 to slide in the sliding groove 113, and the posture of the support part is adjusted by the length of the rod of the crank 111.

The limiting mechanism comprises a limiting part 119 and a limiting bump 120, a groove 116 is formed in the circumference of the driven member 115, and the limiting bump 120 limits the driven member 115 at a certain position of the limiting key 118 after being clamped in the groove 116. Spacing portion 119 installs on the screw rod, and the screw rod setting is on spacing motor, and spacing motor rotates the back and orders about the screw rod and rotates, and then adjusts spacing portion 119 along spacing key 118 ascending position of length direction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The supporting structure is characterized by comprising a supporting part, wherein one side of the supporting part is provided with at least one crank mechanism, the crank mechanism comprises a crank and a crank rod, the crank is eccentrically provided with a connecting point, one end of the crank rod is connected with the connecting point, and the other end of the crank rod is connected with one side of the supporting part so as to drive the supporting part to adjust along the motion trail of the crank rod.

2. The support structure of claim 1, wherein the number of the crank mechanisms is two, wherein the crank rod of one crank mechanism is connected with the left side of the support portion to drive the left side of the support portion to adjust along the motion track of the crank rod, and the crank rod of the other crank mechanism is connected with the right side of the support portion to drive the right side of the support portion to adjust along the motion track of the crank rod.

3. The supporting structure according to claim 2, wherein an installation part is arranged beside or behind the supporting part, a first guiding structure is arranged on the rear side of the supporting part, a first end of the first guiding structure is connected with the installation part, and a second end of the first guiding structure is hinged to the supporting part or connected with the supporting part in a point-surface contact manner.

4. The supporting structure according to claim 3, wherein the first guiding structure comprises a first hinge seat disposed on the mounting portion and a second hinge seat disposed on the supporting portion, the second hinge seat is provided with an adjusting groove, and the first hinge seat is provided with a sliding shaft capable of sliding in the adjusting groove.

5. The support structure of claim 3, wherein the first guide structure includes a first gimbaled head disposed on the mounting portion, a second gimbaled head disposed on the support portion, and a ball pivot connecting the first and second gimbaled heads.

6. The supporting structure according to claim 1, 2 or 3, wherein the crank is provided with a sliding groove, the connecting point can slide in the sliding groove, the crank is connected to the output shaft, the output shaft is provided with a limit key, the limit key is provided with a driven part capable of moving along the length direction of the limit key, a connecting rod is arranged between the driven part and the connecting point, and the driven part is further provided with a limit mechanism capable of positioning the driven part at any position of the limit key.

7. The supporting structure according to any one of claims 1 to 5, wherein a first hinge member and a second hinge member are respectively disposed at two ends of the crank rod, the crank rod is connected to the crank through the first hinge member, a limiting shaft is disposed on the supporting portion, and the second hinge member can rotate and slide on the limiting shaft.

8. The supporting structure according to any one of claims 1 to 5, wherein a limiting shaft is arranged on the crank, a first end of the crank rod is fixedly connected with the supporting part, and a second end of the crank rod slides on the limiting shaft through a second hinge.

9. The supporting structure according to claim 1, wherein the rear side of the supporting portion is provided with a second guiding structure, the second guiding structure and the crank mechanism are distributed along a straight line, and a first end of the second guiding structure is hinged to the supporting portion or is connected with the supporting portion through a point-surface contact manner.

10. The support structure according to claim 1, wherein the rear side of the support part is provided with two second guiding structures, the two second guiding structures and the crank mechanism being distributed in a delta shape.