WO2021128815A1

WO2021128815A1 - Rotation assembly, armrest, and seat

Info

Publication number: WO2021128815A1
Application number: PCT/CN2020/101373
Authority: WO
Inventors: 薛栋
Original assignee: 安吉万宝智能家居科技有限公司
Priority date: 2019-12-24
Filing date: 2020-07-10
Publication date: 2021-07-01

Abstract

Provided is a rotation assembly; the rotation assembly comprises a rotational member (1), a blocking cover (2), and a locking member (3); the rotational member (1) comprises a first cylindrical section (11) and a second cylindrical section (12) arranged along the axial direction; the shaft diameter of the first cylindrical section (11) is greater than the shaft diameter of the second cylindrical section (12); the diameter of the blocking cover (2) is greater than the shaft diameter of the second cylindrical section (12); the blocking cover (2) is detachably connected to the end surface of the second cylindrical section (12) by means of the locking member (3).

Description

Rotating component, armrest and seat

Technical field

The present invention relates to the field of home furnishing technology, in particular to a rotating assembly, an armrest and a seat.

Background technique

A traditional seat includes a seat plate, a backrest and a driving mechanism. The backrest is rotatably connected to the seat plate and can swing relative to the seat plate under the action of the driving mechanism, thereby adjusting the angle of the backrest to meet the needs of the human body.

As shown in Figure 1, usually this kind of seat with adjustable backrest angle is provided with an armrest on the left and right sides of the backrest 1'. The armrest includes a first plate 4'and a second plate 5'. The first plate One end of 4'is hinged with one end of the second plate 5', the other end of the first plate 4'is hinged with the backrest 1'of the seat, and the other end of the second plate 5'is hinged with the seat plate 2'of the seat Therefore, when the angle of the backrest 1'is adjusted, the first plate 4'and the second plate 5'can swing adaptively as the backrest 1'rotates.

The hinge connection between the first plate 4'and the backrest 1'is usually bolted. The bolt 3'passes through the first plate 4'and then connects to the backrest 1'. The first plate 4'can surround the bolt 3. 'Swing, in this way, the bolt 3'is used as the hinge axis. When the first plate 4'swings, it produces circumferential friction on the bolt 3'. After multiple uses, it is easy to cause the bolt 3'to loosen. The plate 4'shakes. Similarly, the bolts 3'between the second plate 5'and the seat 2'are also prone to looseness, causing the second plate 5'to shake. Therefore, the use of bolt connection will cause the armrest to shake and fall off after adjusting the angle of the backrest several times.

Technical solutions

An object of the present invention is to provide a rotating assembly that can improve the stability of the hinge structure and is not easy to loosen.

To achieve this objective, the present invention adopts the following technical solutions: a rotating assembly, the rotating assembly includes a rotating part, a blocking cover and a locking part, the rotating part includes a first cylindrical section and a second cylindrical section arranged in an axial direction Section, the shaft diameter of the first cylindrical section is larger than the shaft diameter of the second cylindrical section, the diameter of the blocking cover is larger than the shaft diameter of the second cylindrical section, and the blocking cover can be It is detachably connected to the outer end surface of the second cylindrical section.

Preferably, the rotating member is provided with at least two connecting holes passing through the rotating member in the axial direction, the connecting holes are threaded holes, the locking member is a screw, and the screw is connected to the thread after passing through the stop cover. Hole fit connection.

Preferably, the rotating member is provided with at least two connecting holes passing through the rotating member in the axial direction, an embedded nut is arranged in the connecting hole, the locking member is a screw, and the screw passes through the stopper. After the cover is covered, it is matched and connected with the embedded nut.

Preferably, the rotating member and/or the blocking cover are made of nylon rods.

Another object of the present invention is to provide an armrest, which can improve the stability of the hinged connection between the armrest and the back plate and seat plate of the seat, and is not easy to shake or fall off.

To achieve this objective, the present invention adopts the following technical solution: an armrest, comprising a first plate, a second plate and two rotating components as described above, one end of the first plate and the second plate One end of the first plate is hinged, the other end of the first plate is hinged to the back plate of the seat through one of the rotating components, and the other end of the second plate is hinged to the back plate of the seat through the other rotating component. The seat plate of the seat.

Preferably, both the first plate and the second plate are provided with a rotating hole for the second cylindrical section to pass through, and the diameter of the rotating hole is matched with the shaft diameter of the second cylindrical section , The first cylindrical section is connected to the back plate or the seat plate.

Preferably, the depth of the rotating hole is smaller than the axial length of the second cylindrical section, and the difference between the depth of the rotating hole and the axial length of the second cylindrical section is 0.5-2 mm.

Preferably, both sides of the first plate and the second plate are symmetrically provided with recessed areas, and the turning holes are located in the recessed areas; the armrest also includes a protective cover, the protective cover may Removably cover the recessed area.

Preferably, one end of the first plate and the second plate is hinged with two first connecting parts, the two first connecting parts are spaced apart, and the first connecting part is provided with a first hinge. Hole; one end of the second plate and the first plate hinged is provided with a second connecting portion, the second connecting portion is located between the two first connecting portions, the second connecting portion is opened There is a second hinge hole, the second hinge hole is aligned with the central axis of the first hinge hole, and the second connecting part is connected between the two first connecting parts by bolts and can be opposite to the The first connecting part rotates.

Another object of the present invention is to provide a seat with good hinged stability between the armrest of the seat and the back plate and seat plate of the seat, and the armrest is not easy to shake or fall off.

To achieve this objective, the present invention adopts the following technical solution: a seat including the armrest as described above.

Beneficial effect

The invention provides a rotating assembly. The rotating assembly includes a rotating piece, a blocking cover and a locking piece. The rotating piece includes a first cylindrical section and a second cylindrical section arranged in an axial direction. The shaft diameter of the first cylindrical section is larger than that of the second cylindrical section. The shaft diameter of the cylindrical section is larger than the shaft diameter of the second cylindrical section, and the stop cover is detachably connected to the end surface of the second cylindrical section through a locking member. When in use, the first cylindrical section is connected to the back plate of the seat, whereby the rotating member is fixed relative to the back plate, the second cylindrical section passes through the first plate, and the blocking cover is connected to the back plate of the second cylindrical section. On the end face, when the first plate rotates relative to the back plate, the first plate is essentially rotating on the second cylindrical section. During the rotation, the first plate is restricted between the first cylindrical section and the blocking cover, so it is not easy to fall off , The stability of the hinge structure can be improved by the rotating assembly, and it is not easy to loosen.

Description of the drawings

Figure 1 is a side view of a seat provided by the prior art;

FIG. 2 is a structural schematic diagram of a perspective view of the rotating assembly provided in the first embodiment; FIG.

Fig. 3 is a schematic structural view of another view of the rotating assembly provided in the first embodiment;

Figure 4 is a cross-sectional view of the rotating assembly provided in the first embodiment;

Figure 5 is a schematic view of the structure of the rotating part provided in the first embodiment;

Fig. 6 is a schematic structural view of the armrest provided in the first embodiment from a perspective;

Fig. 7 is a schematic structural view of the armrest provided in the first embodiment from another perspective;

Figure 8 is an exploded view of the handrail provided in the first embodiment;

Fig. 9 is a partial structural diagram of the first plate provided in the first embodiment;

Fig. 10 is a schematic structural diagram of a rotating member provided in the third embodiment;

FIG. 11 is a schematic diagram of the structure of the blocking cover provided in the third embodiment.

In the picture:

1’, back plate; 2’, seat plate; 3’, bolts; 4’, first plate; 5’, second plate;

1. Rotating part; 11. The first cylindrical section; 12. The second cylindrical section; 13. The connecting hole; 14. The embedded nut; 15. The pit; 16. The groove; 2. The cover; 21. Mounting hole; 22 3. Protruding strip; 3. Locking member; 4. First plate; 41. First connecting part; 5. Second plate; 51. Second connecting part; 6. Turning hole; 7. Depressed area; 8. Protective cover; 9. Boss; 10. Clamping hole; 20. Bolt.

Specific embodiments of the present invention

The technical solutions of the present invention will be further described below in conjunction with the drawings and specific implementations.

Example one

This embodiment provides a rotating assembly. As shown in Figures 2 to 5, the rotating assembly includes a rotating member 1, a blocking cover 2, and a locking member 3. The rotating member 1 includes a first cylindrical section 11 and a The second cylindrical section 12, the shaft diameter of the first cylindrical section 11 is greater than the shaft diameter of the second cylindrical section 12, the diameter of the blocking cover 2 is greater than the shaft diameter of the second cylindrical section 12, the blocking cover 2 is detachably through the locking member 3 Connected to the outer end surface of the second cylindrical section 12.

The rotating assembly can be applied to occasions that need to realize articulation. For example, if the first part (back plate or seat plate) and the second part (correspondingly, the first plate or the second plate) need to be hinged, first connect the first cylindrical section 11 to the first part After the second cylindrical section 12 passes through the second part, the blocking cover 2 is connected with the second part. Through the rotating assembly, the stability of the hinge structure can be improved, and it is not easy to loosen. Thus, the rotating part 1 is fixed relative to the first part, the second cylindrical section 12 passes through the second part, and the blocking cover 2 is connected to the end surface of the second cylindrical section 12, and the second part is opposite to the first zero. When the part rotates, the second part essentially rotates on the second cylindrical section 12. During the rotation, the second part is restricted between the first cylindrical section 11 and the blocking cover 2 and is not easy to fall off.

The rotating part 1 is provided with at least two connecting holes 13 passing through the rotating part 1 along the axial direction. The connecting holes 13 can be threaded holes, the locking part 3 is a screw, and the blocking cover 2 is provided with a mounting hole 21, and the screw passes through the blocking cover. The mounting hole 21 on 2 is then matched with the threaded hole. The blocking cover 2 is connected to the end surface of the second cylindrical section 12 of the rotating part 1 by screw connection, which is convenient to install and disassemble; in addition, because the second part rotates relative to the second cylindrical section 12, the blocking cover may be affected. 2. The circumferential friction force generated by the two connecting holes 13 can be connected from two positions, thereby restricting the circumferential rotation of the blocking cover 2.

The connection between the first cylindrical section 11 and the first part can also be a screw connection. Since the rotating part 1 is provided with a connecting hole 13 passing through the rotating part 1 in the axial direction, the connecting hole 13 can also be used for the first cylinder. The connection between the section 11 and the first part. Due to the circumferential friction caused by the second part on the rotating part 1 when the second part rotates relative to the rotating part 1, in order to avoid the rotation of the rotating part 1 relative to the first part, it is used between the first cylindrical section 11 and the first part The connecting screws can also be provided with at least two. Since at least two screws are provided, on the one hand, the rotation of the rotating part 1 relative to the first part can be avoided, thereby avoiding the loosening of the screws; on the other hand, compared with one screw, the at least two screws can better support the rotating part 1 And the second part, the pressure on each screw is smaller and it is not easy to deform.

Further, in order to avoid the rotation of the rotating member 1 relative to the first part, as shown in FIG. 3, the end surface of the first cylindrical section 11 may be provided with a pit 15 and the first part may be provided with a matching hole 15 For the convex block, before connecting the first cylindrical section 11 with the first part, the first cylindrical section 11 is inserted into the first part through the cooperation of the recess 15 and the convex block, and then the first cylindrical section 11 is connected with the first part by screws. Therefore, the positioning process during the connection of the two is facilitated, and the rotation of the rotating part 1 relative to the first part can also be avoided. Preferably, two pits 15 may be provided. The shape of the pit 15 may be a fan shape, a rectangle, a circle, an ellipse, a polygon, and the like.

The rotating part 1 and/or the blocking cover 2 are made of nylon rods. Nylon rods have good toughness, strong abrasion resistance, oil resistance, shock resistance, tensile, bending strength, and have the characteristics of low water absorption and good dimensional stability. Nylon rods are made of plastic instead of steel, iron, copper and other metals. Materials are important engineering plastics. The rotating part 1 is made of nylon rod, so that the rotating part 1 has good abrasion resistance and is still less worn after long-term use, which is very suitable for the rolling state of the rotating part 1.

This embodiment also provides a seat. The seat includes a seat plate, a backrest, a driving mechanism, and an armrest. The backrest is rotatably connected to the seat plate, and can swing relative to the seat plate under the action of the driving mechanism, thereby adjusting the backrest Angle to suit the needs of the human body. The seat is provided with an armrest on the left and right sides of the backrest, as shown in Figure 6-9. The armrest includes a first plate 4, a second plate 5 and two rotating components. One end of the first plate 4 and One end of the second plate 5 is hinged, the other end of the first plate 4 is hinged to the back of the seat through one of the rotating components, and the other end of the second plate 5 is hinged to the seat of the seat through another rotating component. board. In the seat provided by this embodiment, the back plate and the seat plate of the seat are the above-mentioned first parts, and the first plate 4 or the second plate 5 of the armrest is the above-mentioned second part. One rotating component is used to realize the hinged connection of the first plate 4 relative to the back plate, and the other rotating component is used to realize the hinged connection of the second plate 5 relative to the seat plate.

Two first connecting parts 41 are provided at one end of the first plate 4 and the second plate 5 hinged, the two first connecting parts 41 are spaced apart, and the first connecting part 41 is provided with a first hinge hole; the second plate 5 The end hinged to the first plate 4 is provided with a second connecting portion 51, the second connecting portion 51 is located between the two first connecting portions 41, the second connecting portion 51 is provided with a second hinge hole, the second hinge hole Align with the central axis of the first hinge hole, the bolt 20 passes through the first hinge hole on the first first connecting portion 41, the second hinge hole on the second connecting portion 51, and the second first connecting portion 41 in sequence. After the first hinge hole on the upper hinge is locked, the second connecting portion 51 is connected between the two first connecting portions 41 by the bolt 20, and can rotate relative to the first connecting portion 41. The relative rotation between the first plate 4 and the second plate 5 is realized by the above structure. When the back plate of the seat rotates relative to the seat plate, the first plate 4, the second plate 5, the back plate and the seat plate An adaptively deformable quadrilateral structure is formed in between, which is stretched and deformed with the rotation of the back plate.

Both the first plate 4 and the second plate 5 are provided with a rotating hole 6 for the second cylindrical section 12 to pass through. The diameter of the rotating hole 6 is matched with the shaft diameter of the second cylindrical section 12, and the first cylindrical section 11 is connected On the back plate or seat plate.

In use, the first cylindrical section 11 is connected to the back plate of the seat, whereby the rotating member 1 is fixed relative to the back plate, the second cylindrical section 12 passes through the first plate 4, and connects the blocking cover 2 to the The end surface of the second cylindrical section 12, when the first plate 4 rotates relative to the back plate, the first plate 4 rotates on the second cylindrical section 12, and the first plate 4 is restricted to the first plate 4 during the rotation. Between the cylindrical section 11 and the blocking cover 2, it is not easy to fall off. Similarly, when the second plate 5 rotates relative to the seat plate, it is also not easy to shake or fall off. Through the rotating assembly, the stability of the hinged connection between the armrest and the back plate and the seat plate of the seat can be improved, and it is not easy to shake or fall off.

The depth of the rotating hole 6 is smaller than the axial length of the second cylindrical section 12. Therefore, the distance between the first cylindrical section 11 and the opposite end faces of the blocking cover 2 is greater than the depth of the rotating hole 6, and the first plate 4 (or the second plate 5) rotates along the axial direction of the rotating hole 6 It has a certain movement space, which can prevent the first plate 4 (or the second plate 5) from excessively pressing the first cylindrical section 11 or the blocking cover 2 when rotating, and the pressure and friction of the first cylindrical section 11 and the blocking cover 2 With less force, the first plate 4 (or the second plate 5) can rotate more smoothly.

Preferably, the difference between the depth of the rotating hole 6 and the axial length of the second cylindrical section 12 is 0.5-2mm, for example 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.5mm , 1.8mm, 2mm, etc. Within the above-mentioned range, the first plate 4 (or the second plate 5) has a certain movable space along the axial direction of the rotating hole 6 when rotating, and at the same time, there is no large shaking.

Both sides of the first plate 4 and the second plate 5 are symmetrically provided with a recessed area 7, and the turning hole 6 is located in the recessed area 7. The armrest also includes a protective cover 8, which is detachably covered in the recessed area 7. . Since the first plate 4 and the second plate 5 are of symmetrical structure, the armrests on both sides of the seat can be of exactly the same structure, that is, the armrests do not need to be installed separately from the left and right, and the protective cover 8 covers the outer recessed area 7 The rotating assembly is enclosed in the recessed interval 7 to achieve the function of protecting the rotating assembly and beautiful appearance.

As shown in Figure 9, a number of bosses 9 are protrudingly provided in the recessed area 7. The bosses 9 are provided with clamping holes 10, and the inner side of the cover plate is provided with clamping posts corresponding to the clamping holes 10, and the clamping posts are connected with The snap hole 10 is matched.

Example two

As shown in Figures 3 to 4, this embodiment provides a connecting assembly, armrests and a seat. The difference between this embodiment and the first embodiment is that, in this embodiment, an embedded nut 14 is provided in the connecting hole 13, and the locking member 3 is a screw, and the screw passes through the blocking cover 2 and is connected to the embedded nut 14 in a mating manner. By providing the embedded nut 14, the processing requirements of the rotating part 1 are reduced, the processing of the rotating part 1 is more convenient, and the fit with the screw is higher.

Example three

This embodiment provides a connecting assembly, an armrest and a seat. The difference between this embodiment and Embodiment 1 and Embodiment 2 is that, as shown in Figures 10 and 11, in this embodiment, the end surface of the second cylindrical section 12 is provided with a groove 16, and the end surface of the blocking cover 2 is provided with The groove 16 matches the convex strip 22. Since the second part (ie, the first plate 4 or the second plate 5) generates circumferential friction on the blocking cover 2 when it rotates relative to the second cylindrical section 12, the groove 16 and the convex strip 22 are provided to cooperate with each other. , The circumferential rotation of the blocking cover 2 can be better restricted, the screws are prevented from loosening, and the connection between the blocking cover 2 and the second cylindrical section 12 is ensured firmly.

Obviously, the foregoing embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

A rotating assembly, characterized in that the rotating assembly includes a rotating piece (1), a blocking cover (2), and a locking piece (3), and the rotating piece (1) includes a first cylindrical section arranged in an axial direction. (11) and the second cylindrical section (12), the shaft diameter of the first cylindrical section (11) is larger than the shaft diameter of the second cylindrical section (12), and the diameter of the blocking cover (2) is larger than that of the For the shaft diameter of the second cylindrical section (12), the blocking cover (2) is detachably connected to the outer end surface of the second cylindrical section (12) through the locking member (3).
The rotating assembly according to claim 1, wherein the rotating member (1) is provided with at least two connecting holes (13) passing through the rotating member (1) along the axial direction, and the connecting holes (13) are A threaded hole, the locking member (3) is a screw, and the screw passes through the stop cover (2) and then fits and connects with the threaded hole.
The rotating assembly according to claim 1, wherein the rotating member (1) is provided with at least two connecting holes (13) passing through the rotating member (1) along the axial direction, and the connecting holes (13) ) Is provided with an embedded nut (14), the locking member (3) is a screw, and the screw passes through the blocking cover (2) and then fits and connects with the embedded nut (14).
The rotating assembly according to claim 1, wherein the rotating member (1) and/or the blocking cover (2) are made of nylon rods.
An armrest, characterized in that it comprises a first plate (4), a second plate (5) and two rotating assemblies according to any one of claims 1-4, the first plate ( One end of 4) is hinged to one end of the second plate (5), the other end of the first plate (4) is hinged to the back plate of the seat through one of the rotating components, and the second plate The other end of the piece (5) is hinged to the seat plate of the seat through another rotating assembly.
The handrail according to claim 5, characterized in that the first plate (4) and the second plate (5) are both provided with rotating holes for the second cylindrical section (12) to pass through (6) The diameter of the rotating hole (6) is matched with the shaft diameter of the second cylindrical section (12), and the first cylindrical section (11) is connected to the back plate or the seat plate.
The handrail according to claim 6, characterized in that the depth of the rotating hole (6) is less than the axial length of the second cylindrical section (12), and the depth of the rotating hole (6) is the same as that of the second cylindrical section (12). The difference in the axial length of the two cylindrical sections (12) is 0.5-2mm.
The handrail according to claim 6, characterized in that, both sides of the first plate (4) and the second plate (5) are symmetrically provided with recessed intervals (7), and the turning hole ( 6) Located in the recessed area (7); the handrail also includes a protective cover (8), and the protective cover (8) is detachably covered in the recessed area (7).
The armrest according to claim 5, characterized in that, at one end of the first plate (4) and the second plate (5) hinged, two first connecting portions (41) are provided, and two The first connecting portions (41) are arranged at intervals; one end of the second plate (5) hinged to the first plate (4) is provided with a second connecting portion (51), and the second connecting portion ( 51) Located between the two first connecting portions (41), the second connecting portion (51) is connected between the two first connecting portions (41) by bolts (20), and can be opposite to each other The first connecting portion (41) rotates.
A chair, characterized by comprising the armrest according to any one of claims 5-9.