CN210842316U - Armrest mechanism and chair - Google Patents
Armrest mechanism and chair Download PDFInfo
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- CN210842316U CN210842316U CN201922171946.5U CN201922171946U CN210842316U CN 210842316 U CN210842316 U CN 210842316U CN 201922171946 U CN201922171946 U CN 201922171946U CN 210842316 U CN210842316 U CN 210842316U
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- elastic plate
- rotating shaft
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Abstract
The utility model discloses a handrail mechanism and chair for make handrail mechanism's handrail portion can use stably. The armrest mechanism comprises an armrest part, a connecting part and a rotating part, wherein the rotating part is connected with the armrest part and the connecting part. The rotating part comprises a rotating shaft, a cavity structure, an elastic plate and a bump structure. The side surface of the bump structure comprises a target side surface, and the target side surface is a curved surface structure. The lug structure is fixedly connected with the end part of the rotating shaft. The elastic plate is arranged in the cavity structure, and the rotating shaft is rotatably connected with the cavity structure. The armrest part and the connecting part are rotationally connected with the cavity structure through a rotating shaft. The elastic plate can rotate relative to the lug structure, and the elastic plate and the target side face maintain a butting state, so that the armrest part and the connecting part are stably connected by the elastic force of the elastic plate. Thus, when the armrest part rotates relative to the connecting part, the elastic plate deforms to generate elastic force, and the armrest part and the connecting part are stably connected through the elastic force, so that the armrest part of the armrest mechanism can be stably used.
Description
Technical Field
The utility model relates to the technical field of furniture, especially, relate to a handrail mechanism and chair.
Background
The chair is often provided with armrests, which are often rotatable for the convenience of the user and for the convenience of placing the chair.
According to the existing chair, the armrests and the support of the chair are rotatably connected through the rotating shaft, and a user can rotate the armrests according to actual requirements. However, in the existing chair, the armrest and the bracket are simply connected in a rotating manner through the cylindrical rotating shaft, the armrest is easy to shake during use, and the use state is unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an armrest mechanism and chair for make armrest portion of armrest mechanism can stable use.
To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:
an armrest mechanism comprises an armrest part, a connecting part and a rotating part;
the rotating part is connected with the armrest part and the connecting part;
the rotating part comprises a rotating shaft, a cavity structure, an elastic plate and a lug structure;
the side surface of the lug structure comprises a target side surface, the target side surface is a curved surface structure, and the lug structure is fixedly connected with the end part of the rotating shaft;
the elastic plate is arranged in the cavity structure, and the rotating shaft is rotationally connected with the cavity structure;
the armrest part and the connecting part are rotationally connected with the cavity structure through the rotating shaft;
the elastic plate can rotate relative to the lug structure, and the elastic plate and the target side face maintain an abutting state, so that the armrest part and the connecting part are stably connected through elastic force of the elastic plate.
Optionally, the rotating portion further includes a limiting member, a first limiting structure and a second limiting structure;
the first limiting structure and the second limiting structure are fixedly connected with the end part of the rotating shaft close to the lug structure;
the limiting parts are arranged in the cavity structure, and the first limiting structure and the second limiting structure are respectively arranged at two ends of the target side surface;
the limiting part is used for rotating between the first limiting structure and the second limiting structure so as to limit the rotation range of the armrest part relative to the connecting part.
Optionally, the curvature of the target side surface becomes gradually larger from the end portion to the middle portion of the target side surface;
the target side surface is of a central symmetrical structure.
Optionally, the cavity structure is disposed on the armrest portion;
the end part of the rotating shaft, which is far away from the lug structure, is fixedly connected with the connecting part.
Optionally, the rotating part further comprises a limit connecting piece, the limit connecting piece comprises a connecting rod and a limit surface, and the connecting rod is fixedly connected with the limit surface;
the limiting connecting piece penetrates through the armrest part at the cavity structure, and one end, far away from the limiting surface, of the connecting rod is fixedly connected with the connecting part;
one side of the limiting surface is in sliding connection with the armrest part to limit the armrest part to be located between the limiting surface and the connecting part.
Optionally, the limit connecting piece further comprises a shaft body;
one end of the shaft body is fixedly connected with the limiting surface, and the other end of the shaft body is fixedly connected with the connecting rod;
the shaft body is rotatably connected with the armrest part.
Optionally, one end of the connecting rod, which is far away from the limiting surface, is in threaded connection with the connecting part;
the armrest mechanism further comprises a cover plate;
the cover plate is connected with the armrest part, and the cover plate covers the limiting surface.
Optionally, the elastic plate is an elastic steel sheet, and the elastic plate is clamped with the cavity structure.
Optionally, the armrest part comprises an armrest and an extension rod, one end of the armrest is fixedly connected with one end of the extension rod, and a preset included angle is formed between the extension direction of the armrest and the extension direction of the extension rod;
the rotating part is connected with the extension rod and the connecting part;
when the limiting piece is abutted against the first limiting structure, the handrail is in a use state;
when the limiting part is abutted against the second limiting structure, the handrail is in a storage state.
To achieve the purpose, the embodiment of the present invention further adopts the following technical solutions:
a chair comprises a bracket, a chair seat and an armrest mechanism;
the chair seat is arranged on the bracket;
the armrest mechanism is the armrest mechanism;
the connecting part of the handrail mechanism is fixedly connected with the support.
The utility model has the advantages that:
the utility model discloses handrail mechanism includes handrail portion, connecting portion and rotation portion, and handrail portion and connecting portion are connected to rotation portion. Wherein, the rotation part includes pivot, cavity structure, elastic plate and lug structure. The side surface of the bump structure comprises a target side surface, and the target side surface is a curved surface structure. The lug structure is fixedly connected with the end part of the rotating shaft. The elastic plate is arranged in the cavity structure, and the rotating shaft is rotatably connected with the cavity structure. The armrest part and the connecting part are rotationally connected with the cavity structure through a rotating shaft. The elastic plate can rotate relative to the lug structure, and the elastic plate and the target side face maintain a butting state, so that the armrest part and the connecting part are stably connected by the elastic force of the elastic plate. Thus, when the armrest part rotates relative to the connecting part, the elastic plate also rotates relative to the lug structure, the target side surface of the elastic plate and the lug structure maintains a butting state, the elastic plate deforms to generate elastic force, and the armrest part and the connecting part are stably connected by the elastic force, so that the armrest part of the armrest mechanism can be stably used.
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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of a chair according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an armrest mechanism according to an embodiment of the present invention;
FIG. 3 is an exploded view of the armrest mechanism shown in FIG. 2;
FIG. 4 is a schematic view of a portion of the armrest mechanism shown in FIG. 2;
FIG. 5 is a schematic view of another portion of the armrest mechanism shown in FIG. 2;
FIG. 6 is a schematic view of the rotation of the armrest portion and the attachment portion of the armrest mechanism shown in FIG. 2;
FIG. 7 is an enlarged view of a portion A of the schematic view of the rotation process of the armrest portion and the attachment portion shown in FIG. 6;
FIG. 8 is another schematic view of the rotation of the armrest portion and the attachment portion of the armrest mechanism shown in FIG. 2;
fig. 9 is an enlarged view of a portion B of a schematic view illustrating a rotation process of the armrest portion and the coupling portion shown in fig. 8.
In the figure:
1. an armrest mechanism; 2. an armrest portion; 21. a handrail; 22. an extension rod; 3. a connecting portion; 41. a rotating shaft; 42. a cavity structure; 43. an elastic plate; 44. a bump structure; 441. a target side; 45. a limiting member; 46. a first limit structure; 47. a second limit structure; 48. a limiting connecting piece; 481. a connecting rod; 482. a limiting surface; 483. a shaft body; 5. a cover plate; 6. a support; 7. a chair seat.
Detailed Description
The embodiment of the utility model provides an armrest mechanism 1 and chair for make armrest portion 2 of armrest mechanism 1 can stably rotate.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a chair according to an embodiment of the present invention.
As shown in fig. 1, a chair according to an embodiment of the present invention includes a support 6, a seat 7, and an armrest mechanism 1. Wherein, the seat 7 is arranged on the bracket 6, and a user can sit on the seat 7. The chair may also include a backrest, which is arranged on the bracket 6.
Wherein, the connecting part 3 of the armrest mechanism 1 is fixedly connected with the bracket 6. The armrest mechanism 1 may include an armrest 21.
It should be understood that the chair according to the embodiment of the present invention is only an exemplary illustration, and does not constitute a specific limitation to the chair and the armrest mechanism 1 according to the embodiment of the present invention.
The armrest mechanism 1 according to the embodiment of the present invention will be described in detail below.
Fig. 2 is a schematic structural diagram of an armrest mechanism 1 according to an embodiment of the present invention, and fig. 3 is an exploded view of the armrest mechanism 1 shown in fig. 2. Among them, the armrest mechanism 1 shown in fig. 2 can be applied to the chair shown in fig. 1.
Referring to fig. 2 and 3, the armrest mechanism 1 according to the embodiment of the present invention includes an armrest portion 2, a connecting portion 3, and a rotating portion.
The rotating part connects the armrest part 2 and the connecting part 3, and the armrest part 2 can rotate relative to the connecting part 3 through the rotating part. In the embodiment of the present invention, the armrest portion 2 can be used for the user to lean on his/her arm, and the connecting portion 3 can be used for being fixedly connected to the bracket 6 of the chair.
As shown in fig. 4 and 5, the rotating portion includes a rotating shaft 41, a cavity structure 42, an elastic plate 43, and a protrusion structure 44. The side surface of the bump structure 44 includes a target side surface 441, and the target side surface 441 is a curved surface structure. The bump structure 44 is fixedly connected to an end of the rotating shaft 41, specifically, an end of the bump structure 44 is fixedly connected to an end of the rotating shaft 41.
As shown in fig. 4, the elastic plate 43 is disposed in the cavity structure 42, and the elastic plate 43 can rotate along with the rotation of the cavity structure 42.
The rotating shaft 41 and the cavity structure 42 are rotatably connected. Specifically, the rotating shaft 41 is embedded in the cavity structure 42, and the side surface of the rotating shaft 41 and the wall surface of the cavity structure 42 can rotate relatively. The rotating shaft 41 may be a cylinder structure, and the cavity structure 42 may also be a cylinder structure. Wherein rotationally coupled means relatively rotatable.
The elastic plate 43 can rotate relative to the bump structure 44, and the elastic plate 43 and the target side surface 441 maintain a contact state, so that the armrest part 2 and the connecting part 3 are stably connected by the elastic force of the elastic plate 43.
Specifically, the elastic plate 43 and the target side surface 441 may be maintained in a contact state during the rotation of the elastic plate 43 relative to the bump structure 44, so that the elastic force of the elastic plate 43 allows the armrest portion 2 to stably rotate relative to the connecting portion 3. And, when the elastic plate 43 stops rotating relative to the bump structure 44, the elastic plate 43 and the target side surface 441 are kept in contact, and the elastic force of the elastic plate 43 allows the armrest portion 2 and the connecting portion 3 to be stably connected.
When the elastic plate 43 abuts against the target side surface 441, the elastic plate 43 is deformed to generate an elastic force. The rotating shaft 41 abuts against the sidewall of the cavity structure 42 to form an abutting force. Under the action of the elastic force and the abutting force, the friction force between the rotating shaft 41 and the cavity structure 42 is increased, so that the sliding between the rotating shaft 41 and the cavity structure 42 is reduced, and the rotating shaft 41 and the cavity structure 42 can be stably rotated and connected. Because the rotating part is connected with the armrest part 2 and the connecting part 3, the armrest part 2 and the connecting part 3 can be stably and relatively rotated and connected, and the phenomena of shaking and the like are avoided.
It should be understood that, in the embodiment of the present invention, the rotating portion connects the armrest portion 2 and the connecting portion 3, and the armrest portion 2 and the connecting portion 3 are rotatably connected through the rotating shaft 41 and the cavity structure 42. Specifically, the cavity structure 42 may be disposed on the armrest portion 2, and an end portion of the rotating shaft 41 far from the protrusion structure 44 is fixedly connected to the connecting portion 3. Alternatively, the cavity structure 42 is disposed on the connecting portion 3, and the end of the rotating shaft 41 far from the bump structure 44 is fixedly connected with the armrest portion 2. In this way, the rotating shaft 41 and the cavity structure 42 are rotatably connected, so that the armrest part 2 and the connecting part 3 can be rotatably connected through the rotating shaft 41 and the cavity structure 42.
The elastic plate 43 of the embodiment of the present invention is an elastic plate structure, and the elastic plate 43 may be elastic rubber, the elastic plate 43 may also be an elastic steel sheet, such as a manganese steel spring sheet.
The connection mode of the elastic plate 43 and the cavity structure 42 can be various, such as welding, gluing, etc. in the embodiment of the present invention, as shown in fig. 6, the elastic plate 43 and the cavity structure 42 are clamped.
In order to limit the rotation range of the armrest portion 2 relative to the connecting portion 3, the rotating portion optionally further includes a limiting member 45, a first limiting structure 46, and a second limiting structure 47, as shown in fig. 4 and 5. The position-limiting member 45, the first position-limiting structure 46 and the second position-limiting structure 47 may be block-shaped structures.
The first limiting structure 46 and the second limiting structure 47 are both fixedly connected with the end portion of the rotating shaft 41 close to the bump structure 44. And, a first stopper structure 46 and a second stopper structure 47 are respectively provided at both ends of the target side surface 441.
The limiting member 45 is disposed in the cavity structure 42. Thus, when the cavity structure 42 rotates relative to the rotating shaft 41, the limiting member 45 rotates relative to the first limiting structure 46 and the second limiting structure 47. The limiting member 45 is used for rotating between the first limiting structure 46 and the second limiting structure 47 to limit the rotating range of the armrest part 2 relative to the connecting part 3. In other words, the abutment of the limiting member 45 and the first limiting structure 46, and the abutment of the limiting member 45 and the second limiting structure 47, cause the limiting member 45 to rotate between the first limiting structure 46 and the second limiting structure 47. Because the limiting member 45 is disposed in the cavity structure 42, the first limiting structure 46 and the second limiting structure 47 are both fixedly connected to the rotating shaft 41, so that the first limiting structure 46 and the second limiting structure 47 limit the position of the limiting member 45, and the rotating shaft 41 and the cavity structure 42 rotate relatively within a certain range. The end of the rotating shaft 41 far from the lug structure 44 is fixedly connected with the connecting part 3 by the cavity structure 42 arranged on the armrest part 2. Alternatively, the cavity structure 42 is disposed on the connecting portion 3, and the end of the rotating shaft 41 far from the bump structure 44 is fixedly connected with the armrest portion 2. The rotation range of the armrest part 2 relative to the connecting part 3 can be limited.
In order to provide an assisting force when the rotating shaft 41 and the cavity structure 42 are relatively rotated, optionally, as shown in fig. 5, the curvature of the target side surface 441 is gradually increased from the end portion to the middle portion of the target side surface 441. Thus, when the elastic plate 43 abuts against the end portion of the target side surface 441 during the rotation of the elastic plate 43 with respect to the bump structure 44, the deformation is small, and as the elastic plate 43 rotates toward the middle of the target side surface 441, the deformation of the elastic plate 43 increases, and the elastic force increases. When the elastic plate 43 rotates from the middle of the target side 441 to the end of the target side 441, the deformation of the elastic plate 43 becomes smaller, the elastic force becomes smaller, and the elastic force of the elastic plate 43 has a component force directed to the rotation direction of the elastic plate 43, so that the elastic force can promote the rotation of the rotating shaft 41 and the cavity structure 42 relatively. In this way, the relative rotation between the armrest portion 2 and the link portion 3 connected to the rotating portion is also assisted by the elastic force of the elastic plate 43.
Further, the target side 441 is a center-symmetric structure. Thus, during the rotation of the elastic plate 43 relative to the bump structure 44, the deformation of the elastic plate 43 and the generated elastic force are also in central symmetry. Thereby being more beneficial to the use of the user.
There are various specific ways of realizing the rotating part to connect the armrest part 2 and the connecting part 3, and in one specific implementation, as shown in fig. 3 and 4, the cavity structure 42 is provided on the armrest part 2. As shown in fig. 3 and 5, the end of the rotating shaft 41 far from the projection structure 44 is fixedly connected with the connecting part 3.
In order to prevent the armrest part 2 and the connecting part 3 from slipping off when rotating, optionally, as shown in fig. 3, the rotating part further includes a spacing link 48, the spacing link 48 includes a connecting rod 481 and a spacing surface 482, and the connecting rod 481 and the spacing surface 482 are fixedly connected. The limiting connector 48 penetrates through the armrest part 2 at the cavity structure 42, and one end of the connecting rod 481 far away from the limiting surface 482 is fixedly connected with the connecting part 3.
One side of the stopper surface 482 is slidably connected to the armrest portion 2 to restrict the armrest portion 2 from being located between the stopper surface 482 and the connecting portion 3. The limiting surface 482 may have a plate-like structure.
In this way, the armrest part 2 is supported by the rotating shaft 41 through the cavity structure 42, one side of the armrest part 2 is limited by the side surface of the connecting part 3, and the other side of the armrest part 2 is limited by the limiting surface 482, so that the armrest part 2 rotates relative to the connecting part 3 between the connecting part 3 and the limiting surface 482.
In order to further support the armrest portion 2 so that the rotation of the armrest portion 2 relative to the connecting portion 3 is more stable, optionally, as shown in fig. 3, the limit connection 48 further comprises a shaft body 483. One end of the shaft body 483 is fixedly connected with the limiting surface 482, and the other end of the shaft body 483 is fixedly connected with the connecting rod 481. In other words, the connecting rod 481, the shaft body 483, and the stopper surface 482 are connected in this order.
The shaft body 483 is rotatably connected to the armrest section 2. Specifically, the armrest portion 2 is provided with a through hole, the through hole is communicated with the cavity structure 42, the shaft body 483 is located in the through hole, wherein the shaft body 483 and the through hole are both cylindrical structures, so that the shaft body 483 and the through hole can rotate relatively. In this way, the rotating shaft 41 and the cavity structure 42 are rotatably connected, and the connecting part 3 can support the armrest part 2 through the rotating shaft 41. The shaft body 483 is rotatably connected to the armrest part 2, and the connecting part 3 can also support the armrest part 2 through the shaft body 483. Thus, the armrest portion 2 and the connecting portion 3 have more support positions, which facilitates stable rotation of the armrest portion 2 relative to the connecting portion 3.
Alternatively, an end of the connecting rod 481 remote from the stopper surface 482 is threadedly coupled to the connecting portion 3. As shown in fig. 2 and 3, the armrest mechanism 1 further includes a cover plate 5, and the cover plate 5 is connected to the armrest portion 2, for example, by screwing, or by snapping. The cover plate 5 covers the stopper surface 482. Therefore, the cover plate 5 can protect the connection part of the limiting surface 482 and the armrest part 2 and reduce the interference of the environment to the connection part.
As shown in fig. 2 and 4, optionally, the armrest portion 2 includes an armrest 21 and an extension rod 22, one end of the armrest 21 is fixedly connected with one end of the extension rod 22, and the extending direction of the armrest 21 and the extending direction of the extension rod 22 form a preset included angle.
Wherein the rotating part connects the extension rod 22 and the connecting part 3. For example, the cavity structure 42 is disposed on the extension rod 22, and the rotating shaft 41 is fixedly connected with the connecting portion 3.
The armrest 21 is used for the arm of the user to lean against. The armrest 21 can be rotatably connected to the connecting part 3 via an extension rod 22.
The limiting member 45 can rotate between the first limiting structure 46 and the second limiting structure 47.
Fig. 6 is a schematic view showing a rotation process of the armrest part 2 and the connecting part 3 of the armrest mechanism 1 shown in fig. 2, and fig. 7 is an enlarged view of a part a of the schematic view showing the rotation process of the armrest part 2 and the connecting part 3 shown in fig. 6. As shown in fig. 6 and 7, when the stopper 45 abuts against the first stopper structure 46, the armrest 21 is in the use state. The use state is a state in which the armrest 21 can be leaned against by the user's arm. At this time, the stopper 45 abuts against the first stopper structure 46, and the armrest portion 2 is restricted from continuing to rotate downward relative to the connecting portion 3, thereby facilitating the use of the armrest 21 by the user. Since the elastic plate 43 abuts against the target side surface 441, the armrest portion 2 and the connecting portion 3 are stably rotated by the elastic force of the elastic plate 43, and the shaking of the armrest portion 2 is avoided.
Fig. 8 is another schematic view of the rotation process of the armrest part 2 and the connecting part 3 of the armrest mechanism 1 shown in fig. 2, and fig. 9 is an enlarged view of a part B of the schematic view of the rotation process of the armrest part 2 and the connecting part 3 shown in fig. 8. As shown in fig. 8 and 9, when the stopper 45 abuts against the second stopper structure 47, the armrest 21 is in the stored state. The storage state is a state in which the armrest 21 is not used. At this moment, locating part 45 and second limit structure 47 butt have restricted handrail portion 2 relative connecting portion 3 to continue upwards to rotate to convenience of customers puts and places the connection the utility model discloses handrail mechanism 1's chair of embodiment. Since the elastic plate 43 abuts against the target side surface 441, the armrest portion 2 and the connecting portion 3 are stably rotated by the elastic force of the elastic plate 43, and the shaking of the armrest portion 2 is avoided.
To sum up, the utility model discloses handrail mechanism 1 includes handrail portion 2, connecting portion 3 and rotation portion, and handrail portion 2 and connecting portion 3 are connected to the rotation portion. Wherein, the rotating part comprises a rotating shaft 41, a cavity structure 42, an elastic plate 43 and a bump structure 44. The sides of bump structure 44 include a target side 441, and target side 441 is a curved structure. The bump structure 44 is fixedly connected with the end of the rotating shaft 41. The elastic plate 43 is disposed in the cavity structure 42, and the rotating shaft 41 is rotatably connected with the cavity structure 42. The armrest part 2 and the connecting part 3 are rotatably connected by means of a rotating shaft 41 and a cavity structure 42. The elastic plate 43 can rotate relative to the bump structure 44, and the elastic plate 43 and the target side surface 441 maintain a contact state, so that the armrest part 2 and the connecting part 3 are stably connected by the elastic force of the elastic plate 43. During the rotation of the elastic plate 43 relative to the bump structure 44, the elastic plate 43 and the target side surface 441 are kept in contact with each other, so that the elastic force of the elastic plate 43 allows the armrest portion 2 to stably rotate relative to the connecting portion 3. Thus, when the armrest portion 2 rotates relative to the link portion 3, the elastic plate 43 also rotates relative to the projection structure 44, and the elastic plate 43 and the target side surface 441 of the projection structure 44 maintain the abutting state, and the elastic plate 43 deforms to generate an elastic force that stably connects the armrest portion 2 and the link portion 3, so that the armrest portion 2 of the armrest mechanism 1 can be stably used.
The embodiment of the utility model provides a chair is still provided, and this chair can be as shown in figure 1.
The chair of the embodiment of the utility model comprises a bracket 6, a chair seat 7 and an armrest mechanism 1. Wherein the seat 7 is arranged on the bracket 6.
The armrest mechanism 1 according to the embodiment of the present invention may be the armrest mechanism 1 according to the above embodiments, for example, the armrest mechanism 1 according to the embodiment shown in fig. 2 and 3. With regard to the specific implementation manner of the armrest mechanism 1, reference may be made to the detailed description of the armrest mechanism 1 in the above embodiments, and details are not repeated here.
Wherein, the connecting part 3 of the armrest mechanism 1 is fixedly connected with the bracket 6.
To sum up, the chair of the embodiment of the present invention includes a support 6, a seat 7 and an armrest mechanism 1. Wherein the seat 7 is arranged on the bracket 6. The utility model discloses handrail mechanism 1 includes handrail portion 2, connecting portion 3 and rotation portion, and handrail portion 2 and connecting portion 3 are connected to the rotation portion. Wherein, the rotating part comprises a rotating shaft 41, a cavity structure 42, an elastic plate 43 and a bump structure 44. The sides of bump structure 44 include a target side 441, and target side 441 is a curved structure. The bump structure 44 is fixedly connected with the end of the rotating shaft 41. The elastic plate 43 is disposed in the cavity structure 42, and the rotating shaft 41 is rotatably connected with the cavity structure 42. The armrest part 2 and the connecting part 3 are rotatably connected by means of a rotating shaft 41 and a cavity structure 42. The elastic plate 43 can rotate relative to the bump structure 44, and the elastic plate 43 and the target side surface 441 maintain a contact state, so that the armrest part 2 and the connecting part 3 are stably connected by the elastic force of the elastic plate 43. Wherein, the connecting part 3 of the armrest mechanism 1 is fixedly connected with the bracket 6. Thus, when the armrest portion 2 rotates relative to the link portion 3, the elastic plate 43 also rotates relative to the projection structure 44, and the elastic plate 43 and the target side surface 441 of the projection structure 44 maintain the abutting state, and the elastic plate 43 deforms to generate an elastic force that stably connects the armrest portion 2 and the link portion 3, so that the armrest portion 2 of the armrest mechanism 1 can be stably used.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An armrest mechanism is characterized by comprising an armrest part, a connecting part and a rotating part;
the rotating part is connected with the armrest part and the connecting part;
the rotating part comprises a rotating shaft, a cavity structure, an elastic plate and a lug structure;
the side surface of the lug structure comprises a target side surface, the target side surface is a curved surface structure, and the lug structure is fixedly connected with the end part of the rotating shaft;
the elastic plate is arranged in the cavity structure, and the rotating shaft is rotationally connected with the cavity structure;
the armrest part and the connecting part are rotationally connected with the cavity structure through the rotating shaft;
the elastic plate can rotate relative to the lug structure, and the elastic plate and the target side face maintain an abutting state, so that the armrest part and the connecting part are stably connected through elastic force of the elastic plate.
2. The armrest mechanism of claim 1 wherein,
the rotating part also comprises a limiting part, a first limiting structure and a second limiting structure;
the first limiting structure and the second limiting structure are fixedly connected with the end part of the rotating shaft close to the lug structure;
the limiting parts are arranged in the cavity structure, and the first limiting structure and the second limiting structure are respectively arranged at two ends of the target side surface;
the limiting part is used for rotating between the first limiting structure and the second limiting structure so as to limit the rotation range of the armrest part relative to the connecting part.
3. The armrest mechanism of claim 1 wherein,
the curvature of the target side surface is gradually increased from the end part to the middle part of the target side surface;
the target side surface is of a central symmetrical structure.
4. The armrest mechanism of claim 1 wherein,
the cavity structure is arranged on the armrest part;
the end part of the rotating shaft, which is far away from the lug structure, is fixedly connected with the connecting part.
5. The armrest mechanism of claim 4 wherein,
the rotating part also comprises a limiting connecting piece, the limiting connecting piece comprises a connecting rod and a limiting surface, and the connecting rod is fixedly connected with the limiting surface;
the limiting connecting piece penetrates through the armrest part at the cavity structure, and one end, far away from the limiting surface, of the connecting rod is fixedly connected with the connecting part;
one side of the limiting surface is in sliding connection with the armrest part to limit the armrest part to be located between the limiting surface and the connecting part.
6. The armrest mechanism of claim 5 wherein,
the limiting connecting piece also comprises a shaft body;
one end of the shaft body is fixedly connected with the limiting surface, and the other end of the shaft body is fixedly connected with the connecting rod;
the shaft body is rotatably connected with the armrest part.
7. The armrest mechanism of claim 5 wherein,
one end of the connecting rod, which is far away from the limiting surface, is in threaded connection with the connecting part;
the armrest mechanism further comprises a cover plate;
the cover plate is connected with the armrest part, and the cover plate covers the limiting surface.
8. The armrest mechanism of claim 1 wherein,
the elastic plate is an elastic steel sheet and is clamped with the cavity structure.
9. The armrest mechanism of claim 2 wherein,
the armrest part comprises an armrest and an extension rod, one end of the armrest is fixedly connected with one end of the extension rod, and a preset included angle is formed between the extending direction of the armrest and the extending direction of the extension rod;
the rotating part is connected with the extension rod and the connecting part;
when the limiting piece is abutted against the first limiting structure, the handrail is in a use state;
when the limiting part is abutted against the second limiting structure, the handrail is in a storage state.
10. A chair is characterized by comprising a bracket, a chair seat and an armrest mechanism;
the chair seat is arranged on the bracket;
the armrest mechanism is as claimed in any one of claims 1-9;
the connecting part of the handrail mechanism is fixedly connected with the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171946.5U CN210842316U (en) | 2019-12-06 | 2019-12-06 | Armrest mechanism and chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171946.5U CN210842316U (en) | 2019-12-06 | 2019-12-06 | Armrest mechanism and chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210842316U true CN210842316U (en) | 2020-06-26 |
Family
ID=71299638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922171946.5U Active CN210842316U (en) | 2019-12-06 | 2019-12-06 | Armrest mechanism and chair |
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| Country | Link |
|---|---|
| CN (1) | CN210842316U (en) |
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2019
- 2019-12-06 CN CN201922171946.5U patent/CN210842316U/en active Active
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