CN116372865A

CN116372865A - Chair seat assembling equipment

Info

Publication number: CN116372865A
Application number: CN202310438728.1A
Authority: CN
Inventors: 王江林
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-07-04

Abstract

The invention discloses seat assembly equipment, which comprises a positioning bracket, a driving component and two groups of positioning components with the same structure; the positioning support comprises a bottom plate and two symmetrically arranged limiting groups, the driving assembly is arranged on the positioning support, and the driving assembly can drive the two groups of positioning assemblies to synchronously move; the positioning assembly is located above the bottom plate and comprises a plurality of connected connecting rods, the connecting rods form a stable polygonal structure and a lever structure, the movement track of the fourth connecting rods is from outside to inside, the two groups of symmetrically arranged positioning assemblies can be moved from top to bottom, the relative position of the bottom shell on the seat frame can be adjusted, and the two symmetrically arranged fourth connecting rods move synchronously, so that the relative position of the bottom shell and the seat frame can be fixed.

Description

Chair seat assembling equipment

Technical Field

The invention relates to the field of home furnishing, in particular to seat assembly equipment.

Background

Because the seat surface frame and the bottom shell of the seat are formed in an injection molding mode, a plurality of screws are required to be screwed into screw holes preset in salt on the seat surface frame and screw holes preset in the bottom shell when the seat is assembled, and then the seat surface frame and the bottom shell are fixed together. However, the seat frame and the bottom shell need to be provided with a tightening net before assembly, and because the tightening net is used for supporting a human body, the tightening net needs to tighten the seat frame so as to deform the seat frame in order to ensure that the tightening net has enough supporting force.

The existing seat is assembled manually, in the process of assembling the seat manually, the seat frame deforms, so that the threaded holes of the seat frame and the threaded holes of the bottom shell are not coaxial, the bottom shell is pressed manually, the bottom shell and the seat frame deform, the relative positions of the seat frame and the bottom shell are adjusted continuously when the seat frame and the bottom shell are assembled, then screws are screwed into the bottom shell and the seat frame in an inclined mode, the efficiency of the assembly mode is low, and the assembly process is finished with great labor.

Disclosure of Invention

In order to solve the problem that the manual assembly of the seat is difficult in the prior art, the invention aims to provide the seat assembly equipment which can automatically drive the seat frame and the bottom shell to be centered and enable the connecting holes of the seat frame and the bottom shell to be coaxial, thereby reducing the assembly difficulty of manufacturing and improving the assembly efficiency of the seat.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a chair seat assembling device comprises a positioning bracket, a driving component and two groups of positioning components with the same structure; the positioning support comprises a bottom plate and two limit groups which are symmetrically arranged, wherein each limit group comprises a first limit rod and a second limit rod, the first limit rods and the second limit rods are fixed on the bottom plate, and the distance between the two first limit rods is smaller than that between the two second limit rods; the driving component is arranged on the positioning bracket and can drive the two groups of positioning components to synchronously move; the locating component is located the bottom plate top, the locating component includes first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, the upper end of first connecting rod links to each other with the driving piece, and the lower extreme of first connecting rod is articulated with the upper end of second connecting rod, and the intermediate position of second connecting rod is articulated with the locating support, and the lower extreme of second connecting rod is articulated with the fourth connecting rod, and the upper end of third connecting rod is articulated with the locating support, and the lower extreme of fourth connecting rod is articulated with the upper end of fourth connecting rod.

Preferably, the two positioning assemblies and the two limiting groups are in one-to-one correspondence, and the positioning assemblies are positioned between the first limiting rod and the second limiting rod of the limiting groups.

Preferably, the driving assembly comprises a cylinder, a cylinder body of the cylinder is fixed above the positioning plate, and a telescopic end of the cylinder is connected with the upper end of the first connecting rod.

Preferably, the driving assembly comprises a synchronizing plate, the synchronizing plate is arranged above the bottom plate in a lifting mode, and two ends of the synchronizing plate are hinged with the upper ends of the two first connecting rods respectively.

Preferably, the second connecting rod is connected with the first connecting rod, the positioning bracket and the fourth connecting rod through the first connecting position, the second connecting position and the third connecting position respectively, and the first connecting position, the second connecting position and the third connecting position are distributed in a triangle shape.

Preferably, the spacing between the second connection locations of the first connection locations is greater than the spacing between the second connection locations and the third connection locations.

Preferably, the positioning assembly comprises two second links, and the first link, the third link and the fourth link are all located between the two second links.

Preferably, the positioning piece further comprises a connecting seat, the connecting seat is fixed on the positioning support, the second connecting rod is hinged with the connecting seat, and the third connecting rod is hinged with the connecting seat.

Preferably, the positioning assembly further comprises a fifth connecting rod, the fifth connecting rod is located below the third connecting rod, the upper end of the fifth connecting rod is hinged to the positioning support, and the lower end of the fifth connecting rod is hinged to the lower end of the second connecting rod.

Preferably, a flexible pressing block is fixedly arranged at the lower end of the fourth connecting rod.

The technical scheme of the invention has the beneficial effects that: in the scheme, the relative position of the bottom shell and the seat frame can be adjusted through the two groups of symmetrically arranged positioning assemblies, the two symmetrically arranged fourth connecting rods synchronously move, the movement track of the fourth connecting rods moves from outside to inside and from top to bottom, and the mode can fix the relative position of the bottom shell and the seat frame and can also press the bottom shell and the seat frame to restore the original state; the connecting rod structure has a stable transmission path and can form a lever structure, so that the force of the fourth connecting rod is more stable and sufficient.

Drawings

FIG. 1 is a schematic illustration of the connection of a seat and an assembly device;

FIG. 2 is a schematic view of a decoupling strand of a seat assembly apparatus;

FIG. 3 is a schematic illustration of the connection of the lever assembly and the drive assembly;

FIG. 4 is a schematic view of the lever assembly;

FIG. 5 is a schematic view of a second link;

FIG. 6 is a schematic view of the structure of a seat frame;

fig. 7 is a schematic structural view of the bottom chassis;

FIG. 8 is a schematic view of a seat structure;

fig. 9 is a schematic diagram of a connection structure of the seat frame and the bottom chassis.

Reference numerals: 11. a bottom plate; 12. a first stop lever; 121. a first cross beam; 13. a second limit rod; 131. a second cross beam; 14. a support plate; 15. a limiting plate; 17. a bearing;

21. a mounting base; 22. a cylinder; 221. a telescoping end; 23. a synchronizing plate;

31. a first link; 32. a second link; 321. a first connection location; 322. a second connection location; 323. a third connection location; 33. a third link; 34. a fourth link; 341. avoidance holes; 35. a fifth link; 36. a connecting seat; 37. a connecting plate; 38. a positioning plate; 39. briquetting;

4. a seat frame; 41. a first connection surface; 42. a first connection post; 43. a first connection hole; 45. a seat surface; 47. A flange;

5. a bottom case; 51. a first accommodating groove; 52. a second connection post; 53. a second connection hole; 56. a second connection surface; 57. an action surface;

61. a first hinge shaft; 62. a second hinge shaft; 63. a third hinge shaft; 64. a fourth hinge shaft; 65. a fifth hinge shaft; 66. and a sixth hinge shaft.

Description of the embodiments

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The orientations in the following embodiments are based on the orientations shown in fig. 1, the positions of the bottom plate are taken as the lower positions, the positions of the driving plates are taken as the upper positions, the positions of the first limiting rods are taken as the front positions, the middle positions of the bottom plate are taken as the inner positions, and the positions around the bottom plate are taken as the outer positions.

Examples

A seat assembly apparatus, as shown in fig. 1 to 5, includes a positioning bracket, a driving assembly, and two sets of symmetrically disposed positioning assemblies; the positioning bracket comprises a bottom plate 11 and two limit groups which are symmetrically arranged, wherein each limit group comprises a first limit rod 12 and a second limit rod 13, the first limit rods 12 and the second limit rods 13 are fixed on the bottom plate 11, and the distance between the two first limit rods 12 is smaller than the distance between the two second limit rods 13; the driving component is arranged on the positioning bracket and can drive the two groups of positioning components to synchronously move; the locating component is located the bottom plate 11 top, the locating component includes first connecting rod 31, second connecting rod 32, third connecting rod 33 and fourth connecting rod 34, the upper end and the driving piece of first connecting rod 31 link to each other, and the lower extreme of first connecting rod 31 is articulated with the upper end of second connecting rod 32, and the intermediate position and the locating support of second connecting rod 32 are articulated, and the lower extreme and the fourth connecting rod 34 of second connecting rod 32 are articulated, and the upper end and the locating support of third connecting rod 33 are articulated, and the lower extreme and the upper end of fourth connecting rod 34 are articulated, and fourth connecting rod 34 bottom is fixed with locating plate 38. The locating support still includes a plurality of locating parts, the locating part is fixed on the bottom plate, and a plurality of locating parts enclose and close and be a accommodation space that matches with seat portion.

As shown in fig. 6 to 9, the seat comprises a seat frame 4 and a bottom shell 5, the seat frame 4 is covered with a tightening net, the seat frame 4 comprises a seat surface 45 and a first connecting surface 41, the seat surface 45 and the first connecting surface 41 are oppositely arranged, the first connecting surface 41 is convexly provided with a plurality of first connecting posts 42, the first connecting posts 42 are provided with first connecting holes 43, the bottom shell 5 comprises a second connecting surface 56 and an acting surface 57, the second connecting surface 56 and the acting surface 57 are oppositely arranged, the second connecting surface 56 is provided with a concave first accommodating groove 51, a plurality of second connecting posts 52 are convexly arranged in the first accommodating groove 51, and the second connecting posts 52 are provided with second connecting holes 53; the plurality of first connecting posts 42 and the plurality of second connecting posts 52 are in one-to-one correspondence; the assembling equipment comprises the following specific steps:

step 1), covering a tightening net on the seat frame 4, and then buckling the bottom shell 5 on the seat frame 4 to finish rough positioning of the seat frame 4 and the bottom shell 5; wherein, the seat surface 45 of the seat surface frame 4 faces downwards, the acting surface 57 of the bottom shell 5 faces upwards, and the first connecting column 42 on the seat surface frame 4 is inserted into the first accommodating groove 51 of the bottom shell 5;

step 2); placing the seat frame 4 in a plurality of limiting pieces, wherein the plurality of limiting pieces clamp the seat frame 4; wherein the symmetrical surfaces of the two positioning plates 38 are coincident with the bisecting surface of the seat surface frame 4;

step 3), the driving piece drives the two positioning plates 38 to swing from outside to inside, wherein one positioning plate 38 is firstly propped against the acting surface 57 of the bottom shell 5 to drive the bottom shell 5 to move on the seat surface frame 4; when the two positioning plates 38 are simultaneously contacted with the bottom shell 5, the two positioning plates 38 clamp the bottom shell 5, so that the bottom shell 5 is forced to move downwards and deform; after the first connecting post 42 of the seat frame 4 is inserted into the second connecting hole 53 of the bottom shell 5, the two positioning plates 38 slide relatively to the bottom shell 5, and the two positioning plates 38 press the bottom shell 5 to force the bottom shell 5 and the seat frame 4 to be unfolded; after the first connection hole 43 of the seat frame 4 and the second connection hole 53 of the bottom chassis 5 are coaxial, the two positioning plates 38 stop moving;

step 4) screwing a plurality of screws into the second connecting holes 53 and the first connecting holes 43 one by using a screwdriver, and fixedly connecting the seat frame 4 and the bottom shell 5.

In the above step 2), as shown in fig. 1, the roughly positioned seat is inserted between the two first stopper rods 12, and the rear end of the seat is protruded between the two second stopper rods 13, and the two stopper groups are respectively abutted against the left and right sides of the seat. In the step 3), the driving assembly drives the upper end of the first link 31 to move downward, the lower end of the first link 31 pushes the second link 32, the second link 32 rotates around the hinge point of the second link 32 and the positioning bracket, the lower end of the second link 32 drives the fourth link 34 to swing from outside to inside, and the third link 33 pushes the upper end of the fourth link 34, so as to accelerate the swing of the fourth link 34. So set up, above-mentioned connecting rod and locating support have formed firm connecting rod structure to can accelerate the packaging efficiency of seat support.

By means of the arrangement, the first connecting hole 43 of the seat frame and the second connecting hole 53 of the bottom shell 5 are coaxial rapidly, so that the assembling difficulty of the seat is further reduced, the assembling efficiency of the seat is improved, and the assembling process of the seat is more standard; the chair seat assembled by the method is more approximate to a design draft, and the quality of the finished chair is further ensured; in the method, the relative positions of the bottom shell 5 and the seat surface frame 4 can be continuously adjusted through the two symmetrically arranged positioning plates 38 and the synchronous movement postures of the two positioning plates 38 from top to bottom and from outside to inside, and the relative postures of the seat surface frame 4 and the bottom shell 5 are continuously adjusted when the postures of the seat surface frame 4 on the bottom plate 11 are continuously adjusted, so that the consistency of the seats in mass production is better; in addition, the positioning plate 38 does not compact the seat frame during the position adjustment process, and therefore, the position, the posture and the supporting effect of the stretched net on the seat frame 4 are not affected.

As shown in fig. 6 to 9, the seat frame 4 includes four side edges connected end to end in sequence, wherein the four side edges of the seat frame 4 are curved, two side edges located at the front side and the rear side arch downward, and two side edges located at the left side and the right side arch upward; the second connecting surface 56 of the bottom shell 5 comprises four side edges connected end to end, wherein the four side edges of the seat surface frame 4 are all curved, two side edges positioned on the front side and the rear side arch downwards, and two side edges positioned on the left side and the right side arch upwards; step 1), the first connecting column 42 and the second connecting column 52 are corresponding to each other at the middle position of the front and rear ends of the seat, and then the seat is placed on the bottom plate 11; in this process, the front and rear ends of the housing are supported by the front and rear ends of the seat frame 4.

As shown in fig. 1, 7, 8 and 9, the middle portion of the acting surface 57 of the bottom case 5 is upwardly raised; in the step 3), after a positioning plate 38 abuts against the raised portion of the bottom shell 5, the bottom shell 5 is pressed downward, and the bottom shell 5 is pushed inward; when the two positioning plates 38 are propped against the bottom shell 5 at the same time, the two positioning plates 38 clamp the raised part of the bottom shell 5, so that the bottom shell 5 is forced to deform; after the first connecting post 42 of the seat frame 4 is inserted into the second connecting hole 53 of the bottom shell 5, the seat frame 4 and the bottom shell 5 are buckled, the positioning plates 38 slide relatively to the bottom shell 5, and the two positioning plates 38 simultaneously press the left and right sides of the bottom shell 5 to force the bottom shell 5 to press the seat frame 4, so that the bottom shell 5 and the seat frame 4 are unfolded, and the first connecting hole 43 and the second connecting hole 53 are gradually coaxial.

As shown in fig. 6 and 9, the periphery of the seat frame 4 is outwardly protruded with a flange 47, and in the step 1), the tightening net encloses the seat 45 and the flange 47 of the seat frame 4. In step 4), after the seat frame 4 and the bottom case 5 are fixed, the second connection surface 56 of the bottom case 5 is pressed against the tightening net surrounding the flange 47. The stability and the safety of the seat can be further improved by the arrangement.

In this embodiment, as shown in fig. 1 and 2, the positioning bracket further includes a first beam 121, a second beam 131 and a supporting plate 14, where the first and second limiting

rods

12 and 13 are vertically disposed, bottoms of the first and second limiting

rods

12 and 13 are fixedly connected with the bottom plate 11, two ends of the first beam 121 are respectively and fixedly connected with tops of the two first limiting rods 12, two ends of the second beam 131 are respectively and fixedly connected with tops of the two second limiting rods 13, and two ends of the supporting plate 14 are respectively connected with the first beam 121 and the second beam 131. So set up, both guaranteed limit structure's stability, make limit structure act as the support again simultaneously, and then make the structure of equipment simpler. Further preferably, the limiting piece comprises a limiting plate, a waist-shaped hole is formed in the limiting plate, and a screw penetrates through the waist-shaped hole to fix the limiting plate on the bottom plate 11. So set up, can effectually adjust the position and the angle of limiting plate on bottom plate 11 through waist shape hole, make a plurality of limiting plates, first gag lever post 12 and second gag lever post 13 enclose the location space that closes and match more with the seat support.

Further preferably, the bottom plate 11 is rotatably mounted on the base through a bearing; in the above step 4), the connection hole, into which the screw is not screwed, is moved forward by rotating the bottom plate 11. By the arrangement, assembly difficulty is further reduced, and assembly efficiency is improved. Further preferably, the bottom plate 11 has a disk shape; so can make the volume of equipment smaller as far as possible, rotate more conveniently.

In this embodiment, as shown in fig. 1 and 2, two limiting groups are in one-to-one correspondence with two positioning assemblies, and the positioning assemblies are located between the first limiting rod 12 and the second limiting rod 13. Further preferably, the symmetry planes of the two limiting groups and the symmetry planes of the two positioning assemblies coincide. So arranged, for improved assembly accuracy.

In this embodiment, as shown in fig. 1 and 2, the driving assembly includes a mounting seat 21 and a cylinder 22, the mounting seat 21 is fixed on the supporting plate 14 of the positioning bracket, the cylinder body of the cylinder 22 is mounted on the mounting seat 21, the telescopic end 221 of the cylinder 22 moves up and down, two positioning assemblies are separately disposed on two sides of the cylinder 22, the cylinder 22 is located at the middle position of the two positioning assemblies, and the first connecting rods 31 of the two positioning assemblies are connected with the telescopic end 221 of the cylinder 22. By limiting the positioning assembly and the position of the air cylinder 22 and limiting the power source shared by the two positioning assemblies, the synchronization of the actions of the two positioning assemblies is better, and the assembly precision of the seat is further improved.

Further preferably, the driving assembly further comprises a synchronizing plate 23, the synchronizing plate 23 is fixed on the telescopic end 221 of the air cylinder 22, the synchronizing plate 23 is located above the supporting plate 14, and two ends of the synchronizing plate 23 are hinged to the upper ends of the first connecting rods 31 of the two positioning assemblies respectively. By the arrangement, the synchronism of the two positioning components is further improved.

In this embodiment, as shown in fig. 3 to 5, the positioning assembly further includes a connecting seat 36, the two connecting seats 36 of the two positioning assemblies are respectively fixedly mounted on the left and right sides of the mounting seat 21, the first connecting rod 31 is hinged to the synchronization plate 23 through a first hinge shaft 61, the first connecting rod 31 is hinged to the second connecting rod 32 through a second hinge shaft 62, the second connecting rod 32 is hinged to the connecting seat 36 through a third hinge shaft 63, the second connecting rod 32 is hinged to the fourth connecting rod 34 through a fourth hinge shaft 64, the third connecting rod 33 is hinged to the connecting seat 36 through a fifth hinge shaft 65, and the third connecting rod 33 is hinged to the fourth connecting rod 34 through a sixth hinge shaft 66. The device can reduce the height of the device, so that the device has smaller volume and more compact structure.

Further preferably, the positioning assembly comprises two second links 32, and the connecting seat 36, the first link 31, the third link 33 and the fourth link 34 are all located between the two second links 32.

In this embodiment, as shown in fig. 4, the positioning assembly further includes a fifth link 35, where the fifth link 35 is located below the third link 33, the upper end of the fifth link 35 is hinged to the connection seat 36 and the second link 32 through a third hinge shaft 63, and the lower end of the fifth link 35 is hinged to the links and the second link 32 through a fourth hinge shaft 64.

As further preferred shown in fig. 4, the fourth link 34 is provided with a avoiding hole 341, the bottom of the fifth link 35 is inserted into the avoiding hole 341, and the fourth hinge shaft 64 penetrates through the avoiding hole 341.

Further preferably, the sixth hinge shaft 66 and the fourth hinge shaft 64 are spaced apart by a distance greater than the distance between the bottoms of the fourth links 34 of the fourth hinge shaft 64. Further preferably, the length of the fifth link 35 is greater than the length of the third link 33. This arrangement makes the movement of the positioning plate 38 more stable.

In this embodiment, as shown in fig. 3 to 5, the second connecting rod 32 is provided with a first connecting position 321, a second connecting position 322 and a third connecting position 323, the second hinge shaft 62 is disposed at the first connecting position 321, the third hinge shaft 63 is disposed at the second connecting position 322, the fourth hinge shaft 64 is disposed at the third connecting position 323, and the second connecting rod 32 is connected with the first connecting rod 31, the connecting seat 36 and the fourth connecting rod 34 through the first connecting position 321, the second connecting position 322 and the third connecting position 323, respectively, and the first connecting position 321, the second connecting position 322 and the third connecting position 323 are distributed in a triangle shape. So set up, the transmission route and the action process of locating component are more stable simultaneously.

Further preferably, the spacing between the second connection locations 322 of the first connection locations 321 is greater than the spacing between the second connection locations 322 and the third connection locations 323. The positioning assembly is provided with the inner stroke lever structure and the connecting rod structure, so that the positioning assembly not only has the boosting effect, but also has the stable transmission effect.

In this embodiment, as shown in fig. 1 to 5, a connecting plate 37 is fixedly installed at the bottom of the fourth connecting rod 34, an adjusting hole is formed on the connecting plate, the adjusting hole is a kidney-shaped hole, and a screw passes through the kidney-shaped hole to be in threaded connection with the positioning plate 38, so as to fix the positioning plate 38 on the fourth connecting rod 34. So configured, the relative position of the positioning plate 38 and the fourth link 34, and thus the relative position of the positioning plate 38 and the bottom case 5, and the force applied to the bottom case 5 can be adjusted through the kidney-shaped hole.

Further preferably, a flexible clamp block is mounted to the positioning plate 38. The locating plate 38 is connected with the bottom shell 5 through the clamping blocks, so that the surface of the bottom shell 5 can be better protected. The clamping blocks are made of rubber, high-strength rubber and the like.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.

Claims

1. A seat assembly apparatus, characterized in that: comprises a positioning bracket, a driving component and two groups of positioning components with the same structure;

the positioning support comprises a bottom plate (11) and two limit groups which are symmetrically arranged, wherein each limit group comprises a first limit rod (12) and a second limit rod (13), the first limit rods (12) and the second limit rods (13) are both fixed on the bottom plate (11), and the distance between the two first limit rods (12) is smaller than the distance between the two second limit rods (13);

the driving component is arranged on the positioning bracket and can drive the two groups of positioning components to synchronously move;

the positioning assembly is located above the bottom plate (11), the positioning assembly comprises a first connecting rod (31), a second connecting rod (32), a third connecting rod (33) and a fourth connecting rod (34), the upper end of the first connecting rod (31) is connected with the driving piece, the lower end of the first connecting rod (31) is hinged with the upper end of the second connecting rod (32), the middle position of the second connecting rod (32) is hinged with the positioning support, the lower end of the second connecting rod (32) is hinged with the fourth connecting rod (34), the upper end of the third connecting rod (33) is hinged with the positioning support, and the lower end of the fourth connecting rod (34) is hinged with the upper end of the fourth connecting rod (34).

2. A seat assembly apparatus as claimed in claim 1, wherein: the two locating components are in one-to-one correspondence with the two limiting groups, and the locating components are located between a first limiting rod (12) and a second limiting rod (13) of the limiting groups.

3. A seat assembly apparatus as claimed in claim 1, wherein: the driving assembly comprises an air cylinder (22), a cylinder body of the air cylinder (22) is fixed above the positioning plate, and a telescopic end of the air cylinder (22) is connected with the upper end of the first connecting rod (31).

4. A seat assembly apparatus as claimed in claim 1, wherein: the driving assembly comprises a synchronizing plate (23), the synchronizing plate (23) is arranged above the bottom plate (11) in a lifting mode, and two ends of the synchronizing plate (23) are hinged to the upper ends of the two first connecting rods (31) respectively.

5. A seat assembly apparatus as claimed in claim 1, wherein: the second connecting rod (32) is connected with the first connecting rod (31), the positioning bracket and the fourth connecting rod (34) through the first connecting position (321), the second connecting position (322) and the third connecting position (323), and the first connecting position (321), the second connecting position (322) and the third connecting position (323) are distributed in a triangle shape.

6. A seat assembly apparatus as claimed in claim 5, wherein: the distance between the second connection position (322) of the first connection position (321) is greater than the distance between the second connection position (322) and the third connection position (323).

7. A seat assembly apparatus as claimed in claim 1, wherein: the positioning assembly comprises two second connecting rods (32), and the first connecting rod (31), the third connecting rod (33) and the fourth connecting rod (34) are all positioned between the two second connecting rods (32).

8. A seat assembly apparatus as claimed in claim 1, wherein: the positioning piece further comprises a connecting seat (36), the connecting seat (36) is fixed on the positioning support, the second connecting rod (32) is hinged with the connecting seat (36), and the third connecting rod (33) is hinged with the connecting seat (36).

9. A seat assembly apparatus as claimed in claim 1, wherein: the positioning assembly further comprises a fifth connecting rod (35), the fifth connecting rod (35) is located below the third connecting rod (33), the upper end of the fifth connecting rod (35) is hinged to the positioning support, and the lower end of the fifth connecting rod (35) is hinged to the lower end of the second connecting rod (32).

10. A seat assembly apparatus as claimed in claim 1, wherein: a flexible pressing block (39) is fixedly arranged at the lower end of the fourth connecting rod (34).