CN111634302A - Chair movable connecting mechanism - Google Patents
Chair movable connecting mechanism Download PDFInfo
- Publication number
- CN111634302A CN111634302A CN202010529972.5A CN202010529972A CN111634302A CN 111634302 A CN111634302 A CN 111634302A CN 202010529972 A CN202010529972 A CN 202010529972A CN 111634302 A CN111634302 A CN 111634302A
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- China
- Prior art keywords
- mounting hole
- fastener
- connecting part
- connecting piece
- backrest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D33/00—Seats
- B61D33/0007—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D33/00—Seats
- B61D33/0007—Details; Accessories
- B61D33/0014—Seat frames
- B61D33/0021—Seat frames for adjustable or reclining seats
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention provides a movable connecting mechanism of a seat, which comprises a backrest elbow, a cushion framework, a connecting assembly and a sliding support, wherein the backrest elbow is arranged on the cushion framework, and the connecting assembly and the sliding support are arranged at two ends of the backrest elbow and the cushion framework in pairs; the first connecting portion are fixedly connected with the connecting portion of the backrest elbow, the second connecting portion are rotatably connected with the connecting portion of the sliding support, and the third connecting portion are rotatably connected with the connecting portion of the cushion framework, so that the backrest elbow, the sliding support and the cushion framework form a linkage mechanism. The seat movable connecting mechanism has compact structure and convenient installation, and can simultaneously adjust the height of the cushion and the angle of the backrest.
Description
Technical Field
The invention relates to the field of connecting devices, in particular to a movable connecting mechanism of a seat.
Background
With the development of economy, a high-speed railway train becomes one of the most popular transportation means for people to go out by virtue of the advantages of large space, high speed, high safety factor and the like. However, with the improvement of the requirement of people on living quality, the comfort of the travel tool becomes an important parameter for people to select the transportation tool, especially in long-distance travel, the comfort of the seat can bring great influence to the travel experience of people, and therefore, the improvement of the comfort of the seat becomes a hotspot for improving the seat of a high-speed train.
In the prior art, a seat of a high-speed train realizes adjustment of a backrest through a backrest movable connecting mechanism, wherein the backrest connecting mechanism comprises a backrest adjusting mechanism and a cushion adjusting mechanism, the backrest adjusting mechanism is used for adjusting the angle of the backrest, and the cushion adjusting mechanism is used for adjusting the height of the cushion.
However, the backrest movable connecting mechanism in the prior art is complex in structure, different mechanisms are required to adjust the backrest and the seat respectively, so that passengers can adjust the backrest and the seat for multiple times to reach proper positions, and the backrest movable connecting mechanism with the complex structure can cause the problems of clamping stagnation, slipping or damage, incapability of use and the like after being used for a period of time, thereby influencing the normal use of the passengers.
Disclosure of Invention
The invention aims to provide a movable connecting mechanism of a seat, which has compact structure and convenient installation and can simultaneously adjust the height of a cushion and the angle of a backrest.
The invention provides a seat movable connecting mechanism which comprises a backrest bent pipe, a cushion framework, a connecting assembly and a sliding support, wherein the backrest bent pipe is arranged on the cushion framework, and the connecting assembly and the sliding support are arranged at two ends of the backrest bent pipe and the cushion framework in pairs; first connecting portion with the connecting portion fixed connection of back return bend, the second connecting portion with sliding support's connecting portion rotatable coupling, the third connecting portion with the connecting portion rotatable coupling of cushion skeleton, so that the back return bend sliding support with the cushion skeleton forms the link gear.
Optionally, the connecting assembly comprises a first connecting piece and a second connecting piece, wherein,
the first connecting piece and the second connecting piece respectively comprise a first connecting part which is longitudinally arranged, and a second connecting part and a third connecting part which are transversely arranged;
the first connecting piece and the second connecting piece are oppositely arranged and fixedly connected;
the opposite end surfaces of the first connecting piece and the second connecting piece are respectively provided with a groove structure, and the groove structures are used for inserting the connecting parts of the backrest bent pipes;
the connecting part of the backrest elbow and the connecting part of the cushion framework are arranged between the first connecting piece and the second connecting piece;
the sliding support is arranged on one side, far away from the cushion framework, of the connecting assembly.
Optionally, the first connection portion, the second connection portion, and the third connection portion of the first connection member form an "F" -shaped integrated structure;
the first connecting part, the second connecting part and the third connecting part of the second connecting piece form an F-shaped integrated structure.
Optionally, the connecting assembly further comprises a connecting shaft,
and the first connecting piece and the second connecting piece are both provided with assembling holes, and the connecting shaft is arranged in the assembling holes, so that the first connecting piece and the second connecting piece are fixedly connected.
Optionally, the assembly hole is a long hole, and two side surfaces of the long hole are planes which are arranged oppositely.
Optionally, a first mounting hole is formed in the first connecting portion, and a first fastener penetrates through the first mounting hole to be fixedly connected with the connecting portion of the backrest elbow;
a second mounting hole is formed in the second connecting part, and a second fastener penetrates through the second mounting hole to be rotatably connected with the connecting part of the sliding support;
and a third mounting hole is formed in the third connecting part, and a third fastener penetrates through the third mounting hole and is rotatably connected with the connecting part of the cushion framework.
Optionally, at least one of the first fastener, the second fastener, and the third fastener comprises a bolt and nut structure;
or the second fastener comprises a second bolt and a loose-proof shaft sleeve,
the locking shaft sleeve is screwed on the second bolt, a threaded through hole is formed in the side wall of the locking shaft sleeve, a jackscrew is arranged in the threaded through hole and fixed in the threaded hole of the locking shaft sleeve, and the jackscrew is abutted against the second bolt to prevent the second bolt from falling off.
Optionally, the connecting assembly further comprises a shaft sleeve and a gasket, and the gasket is a plastic gasket.
Optionally, the bushing comprises a first bushing, the washer comprises at least one first washer,
the first shaft sleeve is arranged in the second mounting hole, the first gasket is arranged on the second fastener and located at two ends of the second mounting hole, and the first gasket is used for preventing the second fastener from colliding with the connecting assembly.
Optionally, the shaft sleeve comprises a second shaft sleeve, the washer comprises at least one second washer,
the second shaft sleeve is arranged in the third mounting hole, the second gasket is sleeved on the third fastener and located at two ends of the third mounting hole, and the second gasket is used for preventing the third fastener from colliding with the connecting assembly.
According to the seat movable connecting mechanism provided by the invention, the backrest bent pipe, the cushion framework and the sliding support are connected into the linkage mechanism through the connecting assembly, so that the height of the cushion and the angle of the backrest can be adjusted simultaneously, the adjusting steps are reduced, the adjusting time is saved, and the abrasion of parts is reduced.
The chair movable connecting mechanism provided by the invention has the advantages of compact structure, convenience in installation, stability in movement, no noise and long service life through the connecting assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a disassembled structure view of a first embodiment of a seat articulation mechanism of the present invention;
FIG. 2 is an assembled structural schematic view of a first embodiment of the seat articulation mechanism of the present invention;
FIG. 3 is a schematic view of a first embodiment of the seat articulation mechanism of the present invention in use;
FIG. 4 is a schematic view of a linkage assembly of an embodiment of the seat articulation mechanism of the present invention;
FIG. 5 is a schematic view of a first link of a first embodiment of the seat articulation mechanism of the present invention;
FIG. 6 is a schematic view of a second link of a first embodiment of the seat articulation mechanism of the present invention;
fig. 7 is a schematic structural view of a shaft sleeve of a first embodiment of the seat articulation mechanism of the present invention.
Description of reference numerals:
1: a backrest elbow;
2: a cushion frame;
3: a sliding support;
11: a connecting portion of the backrest elbow;
21: a connecting portion of the cushion frame;
31: a connecting portion of the sliding bracket;
4: a connecting assembly;
41: a first connection portion;
42: a second connecting portion;
43: a third connecting portion;
411: a first mounting hole;
421: a second mounting hole;
431: a third mounting hole;
44: a first connecting member;
45: a second connecting member;
46: a first fastener;
47: a second fastener;
471: a second bolt;
472: a locking shaft sleeve;
4721: a threaded through hole;
48: a third fastener;
481: a third bolt;
482: a third nut;
49: a first bushing;
50: a second shaft sleeve;
51: a first gasket;
52: a second gasket;
53: a connecting shaft;
54: and (7) assembling holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
An exemplary application scenario of the embodiment of the present invention is described below.
Example one
FIG. 1 is a schematic view of a first embodiment of a seat articulation mechanism of the present invention in a disassembled configuration; FIG. 2 is an assembled structural schematic of a first embodiment of the seat articulation mechanism of the present invention; FIG. 3 is a schematic view of a first embodiment of the seat articulation mechanism of the present invention in use; FIG. 4 is a schematic view of a linkage assembly of an embodiment of the seat articulation mechanism of the present invention; FIG. 5 is a schematic view of a first link of a first embodiment of the seat articulation mechanism of the present invention; FIG. 6 is a schematic view of a second link of a first embodiment of the seat articulation mechanism of the present invention; fig. 7 is a schematic structural view of a shaft sleeve of a first embodiment of the seat articulation mechanism of the present invention.
The invention provides a seat movable connecting mechanism, which comprises a backrest elbow 1, a seat cushion framework 2, a connecting assembly 4 and a sliding support 3, wherein the backrest elbow 1 is connected with the seat cushion framework 2 through the connecting assembly 4, the connecting assembly 4 and the sliding support 3 are arranged at two ends of the backrest elbow 1 and the seat cushion framework 2 in pairs, and the connecting assembly 4 comprises a first connecting part 41 which is longitudinally arranged, and a second connecting part 42 and a third connecting part 43 which are transversely arranged; the first connecting portion 41 is fixedly connected with the connecting portion 11 of the backrest elbow, the second connecting portion 42 is rotatably connected with the connecting portion 31 of the sliding bracket, and the third connecting portion 43 is rotatably connected with the connecting portion 21 of the cushion frame, so that the backrest elbow 1, the sliding bracket 3 and the cushion frame 2 form a linkage mechanism.
As shown in fig. 1, the frame structure of the seat in this embodiment is a bilaterally symmetrical structure, and the two ends of the back bent pipe 1 refer to the left and right ends of the back bent pipe 1, which are close to the seat cushion frame 2 and connected to the connecting assembly 4. Both ends of the seat cushion frame 2 refer to the left and right ends as shown in fig. 1, that is, the left and right sides of the body of the user when riding. Set up in pairs and all be provided with a coupling assembling 4 and a sliding support 3 in both ends about the cushion skeleton 2 to two coupling assembling 4 structures that set up both ends about the cushion skeleton 2 are the same, and the structure that sets up sliding support 3 at both ends about cushion skeleton 2 is also the same.
Further, as shown in fig. 1, the backrest elbow 1 in this embodiment is a U-shaped elbow structure, two free end portions of the backrest elbow 1 are connecting portions 11 of the backrest elbow, two ends of the cushion frame 2 close to the side wall of the backrest elbow 1 are provided with connecting portions 21 of two cushion frames, one end of the sliding bracket 3 close to the backrest elbow 1 is provided with a connecting portion 31 of the sliding bracket, wherein the connecting portions 11 of the backrest elbow, the connecting portions 21 of the cushion frames and the connecting portion 31 of the sliding bracket are all provided with hole-shaped structures connected with the connecting assembly 4.
The connecting assembly 4 in this embodiment includes a first connecting portion 41 disposed longitudinally, and a second connecting portion 42 and a third connecting portion 43 disposed transversely; the first connecting portion 41 is fixedly connected with the connecting portion 11 of the backrest elbow, the second connecting portion 42 is rotatably connected with the connecting portion 31 of the sliding bracket, and the third connecting portion 43 is rotatably connected with the connecting portion 21 of the cushion frame, so that the backrest elbow 1, the sliding bracket 3 and the cushion frame 2 form a linkage mechanism.
Further, in the present embodiment, the connecting assembly 4 includes a first connecting piece 44 and a second connecting piece 45 (in fig. 1, the first connecting piece 44 is far away from the seat cushion frame 2, and the second connecting piece 45 is close to the seat cushion frame 2), wherein the first connecting piece 44 and the second connecting piece 45 each include a first connecting portion 41 arranged longitudinally and a second connecting portion 42 and a third connecting portion 43 arranged transversely; the first connecting piece 44 and the second connecting piece 45 are oppositely arranged and fixedly connected; the opposite end surfaces of the first connecting piece 44 and the second connecting piece 45 are respectively provided with a groove structure, and the groove structures are used for inserting the connecting part 11 of the backrest elbow; the connecting part 11 of the backrest elbow and the connecting part 21 of the cushion framework are arranged between the first connecting piece 44 and the second connecting piece 45; the sliding bracket 3 is arranged on one side of the connecting assembly 4 far away from the seat cushion framework 2. The design can improve the connection reliability between the connecting component 4 and the backrest elbow 1, the cushion framework 2 and the sliding support 3, and further prolong the service life of the movable connecting mechanism of the seat.
It should be noted that the connecting assembly 4 may not be designed as two first connecting members 44 and two second connecting members 45 which are fixedly arranged with respect to each other, for example, the connecting assembly 4 may be an "F" type integral structure including the first connecting portion 41, the second connecting portion 42 and the third connecting portion 43, which may make the structure thereof simpler and the installation thereof more convenient.
As shown in fig. 2 and 3, the seat movably connecting mechanism of the invention connects the backrest elbow 1, the sliding bracket 3 and the seat cushion framework 2 into a linkage mechanism through the connecting component 4, so that the seat cushion framework 2 can be driven while the angle of the backrest of the seat can be adjusted, and further the height of the seat cushion can be adjusted, so that the seat cushion can be adjusted to a comfortable position more quickly.
As shown in fig. 4 to 6, a side of the first connecting member 44 close to the second connecting member 45 is an inner surface of the first connecting member 44, and a side of the first connecting member 44 far from the second connecting member 45 is an outer surface of the first connecting member 44; the side of the second connection close to the first connection element 44 is the inner surface of the second connection element 45, and the side of the second connection remote from the first connection element 44 is the outer surface of the second connection element 45. The inner surface of the first connecting piece 44 is identical to the inner surface of the second connecting piece 45 in structure, the outer surface of the first connecting piece 44 is identical to the outer surface of the second connecting piece 45 in structure, and the inner surface of the first connecting piece 44 and the inner surface of the second connecting piece 45 are both provided with a groove structure for reducing weight, so that the groove structure can not only reduce the weight of the connecting component 4, but also save materials and further save cost.
It should be noted that, whether the groove structure is arranged and the specific shape of the groove structure can be specifically designed according to specific conditions, the shape and the number of the groove structure do not limit the protection scope of the present application, and the connecting component 4 may not be provided with the groove structure as long as the strength requirement is met.
It should be noted that the strength of the connection member 4 can be increased by the structure in which the first connection member 44 and the second connection member 45 are fixed to each other in the connection member 4.
Further, the first connecting part 41, the second connecting part 42 and the third connecting part 43 of the first connecting part 44 of the seat movable connecting mechanism of the invention form an F-shaped integrated structure; the first connection portion 41, the second connection portion 42 and the third connection portion 43 of the second connector 45 constitute an "F" -shaped integrated structure of the first connection portion 41.
It should be noted that, by designing the first connecting piece 44 and the second connecting piece 45 into an "F" type integral structure, not only the structure is simple, but also the backrest elbow 1, the cushion framework 2 and the sliding support 3 can be simultaneously connected, thereby achieving the technical effect that the cushion framework 2 can be simultaneously adjusted by adjusting the backrest elbow 1.
It should be noted that the first connecting portion 41, the second connecting portion 42, and the third connecting portion 43 of the first connecting member 44 may be formed in other structures, for example, the second connecting portion 42 and the third connecting portion 43 are disposed on both sides of the first connecting portion 41, and it is within the scope of the present invention that the backrest elbow 1, the seat cushion frame 2, and the sliding bracket 3 may be connected to form a linkage mechanism as long as there are three connecting portions.
Furthermore, the connecting assembly 4 of the seat movably connecting mechanism of the present invention further includes a connecting shaft 53, the first connecting member 44 and the second connecting member 45 are both provided with assembling holes 54, and the connecting shaft 53 is disposed in the assembling holes 54, so that the first connecting member 44 and the second connecting member 45 are fixedly connected.
It should be noted that, the number of the connecting shafts 53 and the assembling holes 54 and the positions where the assembling holes 54 are disposed do not limit the technical solution of the present application, and the number of the connecting shafts 53 and the assembling holes 54 may be specifically set according to specific requirements.
It should be noted that, by fixedly connecting the first connecting member 44 and the second connecting member 45 through the connecting shaft 53, the strength of the connecting assembly 4 can be effectively increased, and the structure of the connecting assembly 4 is more compact, so that the installation space is reduced, and the service life is prolonged.
Further, in this embodiment, the first connecting member 44 and the second connecting member 45 are both provided with an assembling hole 54, the connecting shaft 53 is disposed in the assembling hole 54, so as to fixedly connect the first connecting member 44 and the second connecting member 45, the assembling hole 54 may be a long hole, and two side surfaces of the long hole are opposite planes. Such a design can prevent the connecting shaft 53 from rotating, thereby improving the connecting stability of the first connecting member 44 and the second connecting member 45.
Further, in the present embodiment, the first connecting portion 41 of the connecting assembly 4 is provided with a first mounting hole 411, and the first fastening member 46 passes through the first mounting hole 411 and is fixedly connected with the connecting portion 11 of the backrest elbow; the second connecting part 42 is provided with a second mounting hole 421, and a second fastener 47 passes through the second mounting hole 421 and is rotatably connected with the connecting part 31 of the sliding bracket; the third connecting portion 43 is provided with a third mounting hole 431, and the third fastener 48 is rotatably connected to the connecting portion 21 of the seat cushion frame through the third mounting hole 431.
It should be noted that the connecting assembly 4 includes a first connecting piece 44 and a second connecting piece 45 which are fixedly arranged, that is, a first mounting hole 411 is arranged on the first connecting portion 41 of the first connecting piece 44, a second mounting hole 421 is arranged on the second connecting portion 42 of the first connecting piece 44, and a third mounting hole 431 is arranged on the third connecting portion 43 of the first connecting piece 44; a first mounting hole 411 is formed in the first connecting portion 41 of the second connecting member 45, a second mounting hole 421 is formed in the second connecting portion 42 of the second connecting member 45, and a third mounting hole 431 is formed in the third connecting portion 43 of the second connecting member 45.
Further, in the present embodiment, at least one of the first fastener 46, the second fastener 47, and the third fastener 48 includes a bolt and nut structure. For example, the first fastener 46 is a bolt and nut structure, and the second fastener 47 and the third fastener 48 are a pin joint fastening structure or a rivet joint fastening structure; the first fastener 46 and the second fastener 47 are bolt and nut structures, and the third fastener 48 is a pin connection fastening structure or a rivet connection fastener; the first fastener 46, the second fastener 47, and the third fastener 48 are each a bolt and nut structure.
Further, in this embodiment, the first fastening member 46 may include a first bolt and a first nut, the first bolt sequentially passes through the first mounting hole 411 of the first connecting member 44, the connecting portion 11 of the backrest elbow and the first mounting hole 411 of the second connecting member 45 and is fixedly connected with the first nut, and the first nut is disposed at the inner side of the backrest elbow 1; the second fastener 47 may include a second bolt 471 and a locking shaft sleeve 472, the second bolt 471 sequentially passes through the second mounting hole 421 of the first connector 44, the second mounting hole 421 of the second connector 45, and the connecting portion 31 of the sliding bracket, and is screwed and fixedly connected with the locking shaft sleeve 472, as shown in fig. 6, a threaded through hole 4721 is provided on a side wall of the locking shaft sleeve 472, a jackscrew is provided in the threaded through hole 4721, the jackscrew is fixed in the threaded hole of the locking shaft sleeve 472, and the jackscrew abuts against the second bolt 471 to prevent the second bolt 471 from falling off; the third fastener 48 may include a third bolt 481 and a third nut 482, and the third bolt 481 is sequentially inserted through the third mounting hole 431 of the first connector 44, the connecting portion 21 of the seat cushion frame, and the third mounting hole 431 of the second connector 45 to be fixedly connected to the third nut 482.
It should be noted that, in this embodiment, the portion of the second bolt 471, which is connected to the connecting portion 31 of the sliding bracket, may be configured as a polished rod structure, so as to ensure smooth rotation; the portion of the third bolt 481 connected to the connecting portion 21 of the seat cushion frame may also be provided with a polish rod structure to ensure stable rotation.
It should be noted that the anti-loose shaft sleeve 472 is not limited to the above-mentioned structure with the threaded through hole 4721 on the side wall, the anti-loose shaft sleeve 472 can also be designed to be a structure capable of being used in cooperation with the stop washer, the anti-loose shaft sleeve 472 is matched with the stop washer during installation and then fixedly connected with the second bolt 471, the anti-loose shaft sleeve 472 and the second bolt 471 are prevented from rotating relatively through the stop washer, and the technical effects of compact structure, accurate installation, suitability for rotation, movable parts, stable movement, noiselessness, maintenance-free, long service life, small required tension, capability of effectively reducing shaft load and adaptability to high and low temperature and low-speed movement environments are achieved.
Further, the connecting assembly 4 may further include a bushing and a washer, wherein the bushing may be disposed on the second fastening member 47 and the third fastening member 48, so as to prevent the fastening members from loosening and reduce the wear of the fastening members; washers may also be provided on the first fastener 46, the second fastener 47, and the third fastener 48 as desired, and the washers may be plastic washers, which may increase a certain damping to prevent a hard collision between the parts during the adjustment of the seat.
Further, the shaft sleeve comprises a first shaft sleeve 49, the gasket comprises at least one first gasket 51, the first shaft sleeve 49 is arranged in the second mounting hole 421, the first gasket 51 is sleeved on the second fastening piece 47 and is positioned at two ends of the second mounting hole 421, and the first gasket 51 is used for preventing the second fastening piece 47 from colliding with the connecting assembly 4.
In this embodiment, two first washers 51 are disposed on the second bolt 471, and the two first washers 51 are respectively located on the outer surfaces of the first connecting member 44 and the second connecting member 45, that is, the second bolt 471 sequentially passes through the first washer 51, the first sleeve 49 disposed in the second mounting hole 421, the second first washer 51, and the connecting portion 31 of the sliding bracket, and then is screwed and fixedly connected with the anti-loose sleeve 472.
Thus, the first shaft sleeve 49 is arranged in the second mounting hole 421, so that the second fastening piece 47 can be effectively prevented from loosening, the abrasion of the second fastening piece 47 can be reduced, and in addition, the stable movement between the second fastening piece 47 and the sliding support 3 can be ensured, and the seat can be further ensured not to be blocked when being adjusted.
Further, the second mounting hole 421 may be designed to have a structure with two oppositely disposed flat surfaces, as shown in fig. 5, such a hole-like structure may prevent the sleeve from rotating.
It should be noted that the number of the first washers 51 may be plural, and may be set according to specific situations, and the plural first washers 51 may be set to different sizes as long as the design and use requirements are met.
Further, the shaft sleeve may further include a second shaft sleeve 50, the washer may include at least one second washer 52, the second shaft sleeve 50 is disposed in the third mounting hole 431, the second washer 52 is sleeved on the third fastening member 48 and located at both ends of the third mounting hole 431, and the second washer 52 is used for preventing the third fastening member 48 and the connecting assembly 4 from colliding. In the present embodiment, two second washers 52 are provided on the third bolt 481, wherein the second washers 52 are provided on both sides of the connecting portion 21 of the seat cushion frame.
It should be noted that the second gasket 52 may be provided in plurality according to specific situations, and the plurality of second gaskets 52 may be provided in different sizes as long as the design and use requirements are met.
Further, the connecting assembly 4 may also include a plurality of flat pads, which may facilitate installation.
According to the seat movable connecting mechanism provided by the invention, the backrest elbow 1, the cushion framework 2 and the sliding support 3 are connected into the linkage mechanism through the connecting assembly 4, so that the height of the cushion and the angle of the backrest can be simultaneously adjusted, the adjusting steps are reduced, the adjusting time is saved, and the abrasion of parts is reduced.
The seat movable connecting mechanism provided by the invention has the advantages of compact structure, convenience in installation, stability in movement, no noise and long service life through the connecting assembly 4.
The movable connecting mechanism for the seat is simple in structure, convenient to operate, low in manufacturing cost, suitable for seats of different models and high in applicability.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A chair movable connecting mechanism is characterized by comprising a backrest elbow, a cushion framework, a connecting assembly and a sliding support, wherein the backrest elbow is arranged on the cushion framework, the connecting assembly and the sliding support are arranged at two ends of the backrest elbow and the cushion framework in pairs,
the connecting assembly comprises a first connecting part which is longitudinally arranged, and a second connecting part and a third connecting part which are transversely arranged;
first connecting portion with the connecting portion fixed connection of back return bend, the second connecting portion with sliding support's connecting portion rotatable coupling, the third connecting portion with the connecting portion rotatable coupling of cushion skeleton, so that the back return bend sliding support with the cushion skeleton forms the link gear.
2. The seat articulation mechanism of claim 1, wherein said linkage assembly comprises a first linkage and a second linkage, wherein,
the first connecting piece and the second connecting piece respectively comprise a first connecting part which is longitudinally arranged, and a second connecting part and a third connecting part which are transversely arranged;
the first connecting piece and the second connecting piece are oppositely arranged and fixedly connected;
the opposite end surfaces of the first connecting piece and the second connecting piece are respectively provided with a groove structure, and the groove structures are used for inserting the connecting parts of the backrest bent pipes;
the connecting part of the backrest elbow and the connecting part of the cushion framework are arranged between the first connecting piece and the second connecting piece;
the sliding support is arranged on one side, far away from the cushion framework, of the connecting assembly.
3. The seat articulation mechanism of claim 2, wherein said first, second and third connecting portions of said first link form an "F" shaped unitary structure;
the first connecting part, the second connecting part and the third connecting part of the second connecting piece form an F-shaped integrated structure.
4. The seat articulation mechanism of claim 2, wherein said coupling assembly further comprises a coupling shaft;
and the first connecting piece and the second connecting piece are both provided with assembling holes, and the connecting shaft is arranged in the assembling holes, so that the first connecting piece and the second connecting piece are fixedly connected.
5. The seat articulation mechanism of claim 4 wherein said mounting aperture is an elongated aperture having opposing flat sides.
6. The chair movable connecting mechanism according to any one of claims 1-5, wherein the first connecting part is provided with a first mounting hole, and a first fastening member passes through the first mounting hole and is fixedly connected with the connecting part of the backrest elbow;
a second mounting hole is formed in the second connecting part, and a second fastener penetrates through the second mounting hole to be rotatably connected with the connecting part of the sliding support;
and a third mounting hole is formed in the third connecting part, and a third fastener penetrates through the third mounting hole and is rotatably connected with the connecting part of the cushion framework.
7. The seat articulation mechanism of claim 6, wherein at least one of said first fastener, said second fastener, said third fastener comprises a bolt and nut arrangement;
or the second fastener comprises a second bolt and a loose-proof shaft sleeve,
the locking shaft sleeve is screwed on the second bolt, a threaded through hole is formed in the side wall of the locking shaft sleeve, a jackscrew is arranged in the threaded through hole and fixed in the threaded hole of the locking shaft sleeve, and the jackscrew is abutted against the second bolt to prevent the second bolt from falling off.
8. The seat articulation mechanism of claim 7, wherein said coupling assembly further comprises a bushing and a washer, said washer being a plastic washer.
9. The seat articulation mechanism of claim 8, wherein said bushing comprises a first bushing, said washer comprises at least a first washer,
the first shaft sleeve is arranged in the second mounting hole, the first gasket is arranged on the second fastener and located at two ends of the second mounting hole, and the first gasket is used for preventing the second fastener from colliding with the connecting assembly.
10. The seat articulation mechanism of claim 9 wherein said bushing comprises a second bushing, said washer comprises at least one second washer,
the second shaft sleeve is arranged in the third mounting hole, the second gasket is sleeved on the third fastener and located at two ends of the third mounting hole, and the second gasket is used for preventing the third fastener from colliding with the connecting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010529972.5A CN111634302B (en) | 2020-06-11 | 2020-06-11 | Chair movable connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010529972.5A CN111634302B (en) | 2020-06-11 | 2020-06-11 | Chair movable connecting mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN111634302A true CN111634302A (en) | 2020-09-08 |
| CN111634302B CN111634302B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010529972.5A Active CN111634302B (en) | 2020-06-11 | 2020-06-11 | Chair movable connecting mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320558A (en) * | 2021-06-10 | 2021-08-31 | 中车唐山机车车辆有限公司 | Carriage and rail vehicle |
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| GB0003161D0 (en) * | 2000-02-14 | 2000-04-05 | Rover Group | Motor vehicle assembly |
| DE10353403A1 (en) * | 2003-11-07 | 2005-06-02 | Volkswagen Ag | Position adjustment switch for seat in road vehicle may have two separate sliding controls or may have joystick movable in any direction and has additional control buttons |
| CN201049598Y (en) * | 2007-06-29 | 2008-04-23 | 上海交运汽车精密冲压件有限公司 | Self-adjusting mechanism for high speed train seat cushion |
| CN206288017U (en) * | 2016-12-29 | 2017-06-30 | 上海坦达轨道车辆座椅系统（长春）有限公司 | A kind of linkage structure for seat |
| CN209795488U (en) * | 2019-04-28 | 2019-12-17 | 苏州华亚智能科技股份有限公司 | Rail transit seat back structure |
| CN210672706U (en) * | 2019-10-21 | 2020-06-05 | 上海贝氪若宝健康科技有限公司 | Adjustable backrest linkage mechanism |
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| GB0003161D0 (en) * | 2000-02-14 | 2000-04-05 | Rover Group | Motor vehicle assembly |
| DE10353403A1 (en) * | 2003-11-07 | 2005-06-02 | Volkswagen Ag | Position adjustment switch for seat in road vehicle may have two separate sliding controls or may have joystick movable in any direction and has additional control buttons |
| CN201049598Y (en) * | 2007-06-29 | 2008-04-23 | 上海交运汽车精密冲压件有限公司 | Self-adjusting mechanism for high speed train seat cushion |
| CN206288017U (en) * | 2016-12-29 | 2017-06-30 | 上海坦达轨道车辆座椅系统（长春）有限公司 | A kind of linkage structure for seat |
| CN209795488U (en) * | 2019-04-28 | 2019-12-17 | 苏州华亚智能科技股份有限公司 | Rail transit seat back structure |
| CN210672706U (en) * | 2019-10-21 | 2020-06-05 | 上海贝氪若宝健康科技有限公司 | Adjustable backrest linkage mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320558A (en) * | 2021-06-10 | 2021-08-31 | 中车唐山机车车辆有限公司 | Carriage and rail vehicle |
| CN113320558B (en) * | 2021-06-10 | 2023-01-24 | 中车唐山机车车辆有限公司 | Carriage and rail vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111634302B (en) | 2021-07-16 |
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