WO2018171104A1

WO2018171104A1 - Lifting mechanism

Info

Publication number: WO2018171104A1
Application number: PCT/CN2017/096156
Authority: WO
Inventors: 郑春华
Original assignee: 深圳市鑫宝临五金有限公司
Priority date: 2017-03-21
Filing date: 2017-08-07
Publication date: 2018-09-27
Also published as: CN207355816U

Abstract

A lifting mechanism, comprising: a connecting rod structure (10), the connecting rod structure (10) comprising a fixed support beam (11) and a first connecting rod (12), which is hinged to the fixed support beam (11), while another end of the first connecting rod (12) is hinged to a second connecting rod (13), and another end of the second connecting rod (13) is hinged to a lifting portion (15); a guiding groove (111) is horizontally disposed on the fixed support beam (11) along the length direction of the fixed support beam (11), while an end of a third connecting rod (14) is provided with a guiding column (141), and the guiding column (141) is inserted within the guiding groove (111) and may be moved horizontally along the guiding groove (111); another end of the third connecting rod (14) is hinged together with the lifting portion (15), and a position between two ends of the first connecting rod (12) is hinged together with a position between two ends of the third connecting rod (14). The lifting mechanism may provide required movement tracks for parts requiring lifting and lowering on furniture such as sofas, thus ensuring that the same may be moved according to design requirements.

Description

Lifting mechanism

Technical field

The utility model relates to a lifting mechanism, in particular to a lifting mechanism capable of providing a required moving track to a part of a furniture such as a sofa that needs to be lifted and lowered.

Background technique

There are many different types of lifting mechanisms on the market that are suitable for different occasions. Many lifting mechanisms are also used on the adjustable backrest angle sofa. At present, most of the lifting mechanisms applied to the sofa convert the power of the motor directly into ascending or descending motion. In this conversion process, there is no well-designed mechanism to convert the power of the motor into a necessary adjustment for the sofa. mobile. Especially when adjusting the backrest of the sofa, the gap part of the sofa backrest needs a raised part to fill the gap formed between the waist of the sofa and the back of the sofa, so that the user can adjust the sofa after the sofa is adjusted. Still have a better user experience. At present, there is no good structure for this requirement to realize that the lifted component moves to the specified position according to the required trajectory, and such a lifting structure is now required.

Utility model content

The technical problem to be solved by the present invention is that, in view of the deficiencies of the prior art, the object of the present invention is to provide a lifting mechanism capable of providing a required moving trajectory for a portion of a piece of furniture such as a sofa that needs to be lifted and lowered.

The technical solution of the present invention is: a lifting mechanism, including a connecting rod structure, the key point is that the connecting rod structure comprises a fixed supporting beam and a first connecting rod hinged with the fixed supporting beam, the first connection The other end of the rod is hinged with the second link, and the other end of the second link is hinged with the lifting portion, and a guiding groove is horizontally disposed on the fixed supporting beam along the length direction of the fixed supporting beam, the third connection One end of the rod is provided with a guiding post, the guiding post is embedded in the guiding groove and horizontally movable along the guiding groove, and the other end of the third connecting rod is hinged with the lifting portion, The position between the ends of the first link is hinged to the position between the ends of the third link.

As a modification of the present invention, a linear motion output unit connected to the third link is further included. The linear motion output unit includes a fixed portion and a moving portion that moves relative to the fixed portion, and the moving portion is coupled to the third link.

As a further improvement of the present invention, the third link further includes an extension portion disposed under the guide post and an upper body portion, the extension portion being coupled to the moving portion. The body portion and the extension portion are disposed at an angle. An angle between the body portion and the extension portion is a right angle.

As a further improvement of the present invention, the linear output unit is disposed below the fixed support beam, and the moving portion is hinged with the end of the extension.

As a further improvement of the present invention, the guide post is movably coupled to the third link, and the guide post is rotatable relative to the third link.

As a second modification of the present invention, two sets of parallel connecting rod structures are included, and the fixing portion is connected with the fixed support beams of the two sets of connecting rod structures.

As a further improvement of the present invention, the moving portion is simultaneously hinged with the ends of the extensions of the two sets of link structures.

Compared with the prior art, the utility model has the following beneficial technical effects:

A lifting mechanism includes a link structure including a fixed support beam and Fixing a first link hinged by the support beam, the other end of the first link is hinged with the second link, and the other end of the second link is hinged with the lifting portion, and the fixing is fixed along the fixed support beam a guiding groove is horizontally disposed in a longitudinal direction of the supporting beam, and one end of the third connecting rod is provided with a guiding post, the guiding post is embedded in the guiding groove and horizontally movable along the guiding groove, the third connection The other end of the rod is hinged with the lifting portion, and a position between the two ends of the first link is hinged with a position between both ends of the third link. The lifting and lowering movement of the lifting portion can be realized by pushing the guiding column of the third connecting rod to move left and right in the guiding groove. This structure completely satisfies the need for a raised part in the gap portion of the sofa back side when the backrest of the sofa is adjusted. To fill the gap between the waist and the sofa back of the sofa, so that the user can still have a better user experience after the sofa is adjusted. At the same time, its own structure is reasonable and takes up little space, which can be easily set into furniture such as sofas. The lifting mechanism also includes a linear motion output unit coupled to the third link. The linear motion output unit includes a fixed portion and a moving portion that moves relative to the fixed portion, and the moving portion is coupled to the third link. The moving part can drive the third link to realize the aforementioned lifting movement, so that the lifting movement can be conveniently controlled by controlling the linear motion output unit. The third link further includes an extension disposed below the guide post and an upper body portion, the extension being coupled to the moving portion. The body portion and the extension portion are disposed at an angle. An angle between the body portion and the extension portion is a right angle. This structure reduces the volume of the lifting mechanism and facilitates its installation, and at the same time, the structure ensures uniform acceptance and prolongs the service life. The linear output unit is disposed below the fixed support beam, and the moving portion is hinged with an end of the extension. The guide post is movably coupled to the third link, and the guide post is rotatable relative to the third link. This makes the lifting mechanism run more smoothly and avoids the occurrence of the Caton situation. The lifting mechanism comprises two sets of connecting rod structures arranged in parallel, and the fixing portion is connected with the fixed supporting beams of the two sets of connecting rod structures. The moving portion is simultaneously hinged with the ends of the extensions of the two sets of link structures. Two sets of link structures move through a straight line The output unit is driven to ensure that the lifting adjustment process is more stable and reliable.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings, in which:

Figure 1 is a schematic view of the initial state of the utility model;

Figure 2 is a schematic view of the state after adjustment of the utility model;

Figure 3 is a schematic view of the split structure of the present invention.

detailed description

A lifting mechanism includes a link structure 10 including a fixed support beam 11 and a first link 12 hinged with the fixed support beam 11, the other end of the first link 12 The second link 13 is hinged, and the other end of the second link 13 is hinged to the lifting portion 15 , and a guiding groove 111 is horizontally disposed on the fixed supporting beam 11 along the longitudinal direction of the fixed supporting beam 11 . One end of the three-link 14 is provided with a guiding post 141, the guiding post 141 is embedded in the guiding groove 111 and horizontally movable along the guiding groove 111, and the other end of the third link 114 is The lifting portions 15 are hinged together, and a position between both ends of the first link 12 is hinged with a position between both ends of the third link 14. The lift mechanism further includes a linear motion output unit 20 coupled to the third link 14. The linear motion output unit 20 includes a fixed portion 21 and a moving portion 22 that moves relative to the fixed portion 21, and the moving portion 22 is coupled to the third link 14. The third link 14 further includes an extension portion 142 disposed below the guide post 141 and an upper body portion 143, and the extension portion 142 is coupled to the moving portion 22. The body portion 143 is disposed at an angle to the extension portion 142. An angle between the body portion 143 and the extending portion 142 is a right angle. The linear output unit 20 is disposed below the fixed support beam 11, and the moving portion 42 is The ends of the extensions 142 are hinged together. The guide post 141 is movably coupled to the third link 14 , and the guide post 141 is rotatable relative to the third link 14 . The lifting mechanism comprises two sets of connecting rod structures arranged in parallel, and the fixing portion 21 is connected with the fixed supporting beams 11 of the two sets of connecting rod structures. The moving portion 22 is simultaneously hinged with the ends of the extensions 142 of the two sets of link structures.

Claims

A lifting mechanism, comprising a connecting rod structure (10), characterized in that: the connecting rod structure (10) comprises a fixed supporting beam (11) and a first connecting rod (12) hinged with the fixed supporting beam (11) The other end of the first link (12) is hinged to the second link (13), and the other end of the second link (13) is hinged to the lifting portion (15) at the fixed support A guide groove (111) is horizontally disposed on the beam (11) along the longitudinal direction of the fixed support beam (11), and one end of the third link (14) is provided with a guide post (141), and the guide post (141) a card embedded in the guide groove (111) and horizontally movable along the guide groove (111), the other end of the third link (14) being hinged with the lifting portion (15), The position between the ends of the first link (12) is hinged to the position between the ends of the third link (14).
The lifting mechanism according to claim 1, further comprising a linear motion output unit (20) coupled to said third link (14).
A lifting mechanism according to claim 2, wherein said linear motion output unit (20) comprises a fixed portion (21) and a moving portion (22) that moves relative to said fixed portion (21), said movement The portion (22) is coupled to the third link (14).
The lifting mechanism according to claim 3, wherein the third link (14) further comprises an extension (142) disposed below the guide post (141) and an upper body portion (143). The extension (142) is coupled to the moving portion (22).
The lifting mechanism according to claim 4, wherein the body portion (143) is disposed at an angle to the extension portion (142).
The lifting mechanism according to claim 5, wherein an angle between the body portion (143) and the extending portion (142) is a right angle.
The lifting mechanism according to claim 6, wherein said linear motion output unit (20) is disposed below said fixed support beam (11), said moving portion (42) and said extending portion (142) The ends are hinged together.
The lifting mechanism according to claim 7, wherein said guide post (141) is movably coupled to said third link (14), said guide post (141) being rotatable relative to said third link (14) Rotate.
The lifting mechanism according to any one of claims 1 to 8, characterized in that it comprises two sets of link structures arranged in parallel, the fixing portion (21) and the fixed support beams of the two sets of link structures ( 11) Connect.
The lifting mechanism according to claim 9, characterized in that the moving portion (22) is simultaneously hinged with the ends of the extensions (142) of the two sets of link structures.