Armrest assembly and sofa

Abstract

The armrest assembly comprises an armrest body and a lifting mechanism, the armrest body comprises an armrest part and a storage box, the armrest part is arranged at the top of the storage box, the storage box is provided with a storage space, the lifting mechanism is connected to the bottom of the storage box, and the lifting mechanism is used for driving the armrest body to do lifting motion relative to the sofa body; the armrest part is arranged on the sofa body, so that the armrest part is flush with the seat surface of the sofa body, or the armrest part protrudes relative to the seat surface of the sofa body. Therefore, the functions of the sofa can be enriched, and the practicability of the sofa is improved. The utility model is widely applied to the technical field of furniture.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of furniture, in particular to a handrail assembly and a sofa. BACKGROUND

[0002] With the progress and development of society, the living quality of residents is continuously improved, and the functional requirements of users for furniture gradually show a diversified development trend, especially for sofas which are used frequently. The functions of the current sofa are relatively single, and can only be used for users to sit or lie down. Since the handrails are mostly fixedly installed, the width of the sofa is limited and fixed by the handrails, which limits the use scenarios of the sofa and affects the practicality of the sofa. CONTENT OF THE INVENTION

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a handrail assembly and a sofa, which can enrich the functions of the sofa and improve the practicality of the sofa.

[0004] The handrail assembly according to the first aspect of the present application is applied to a sofa, and the sofa comprises a sofa body. The handrail assembly comprises:

[0005] a handrail body, the handrail body comprising a handrail part and a storage box, the handrail part being arranged on the top of the storage box, and the storage box having a storage space;

[0006] a lifting mechanism, the lifting mechanism being connected to the bottom of the storage box, and the lifting mechanism being used to drive the handrail body to move up and down relative to the sofa body, so that the handrail part is flush with the seat surface of the sofa body, or the handrail part is raised relative to the seat surface of the sofa body.

[0007] The handrail assembly according to the present application has at least the following beneficial effects: by arranging the handrail body to comprise the handrail part and the storage box, the handrail body can be used to store articles in addition to being used for users to hold, so as to improve the space utilization rate of the inside of the handrail body, enrich the functions of the handrail assembly, and thus enrich the functions of the sofa. Meanwhile, by arranging the lifting mechanism, the handrail body can move up and down relative to the sofa body. When the lifting mechanism drives the handrail part to move to be raised relative to the seat surface of the sofa body, the handrail assembly can be used for users to hold, and the storage box is exposed relative to the seat surface, which is conducive to the taking and placing of articles in the storage box. When the lifting mechanism drives the handrail part to move to be flush with the seat surface of the sofa body, the top of the handrail assembly and the seat surface together serve as a bearing surface, so as to expand the seat width of the sofa, which is conducive to meeting the use requirements of different scenarios (such as multiple people sitting or lying, the sofa being used in combination with other furniture, etc.). It can be seen that the handrail assembly provided by the present application can make the sofa applicable to different use scenarios, so as to enrich the functions of the sofa and improve the practicality of the sofa.

[0008] According to some embodiments of the present application, the handrail assembly further comprises a fixed frame, the lifting mechanism comprises a movable frame, the movable frame comprises a movable base, a fixed block and a support rod set, one end of the support rod set is hinged to the movable base, the other end of the support rod set is hinged to the fixed block, the fixed block is fixedly connected to the storage box, the movable base is slidably connected to the fixed frame, or the movable base is slidably connected to the storage box, the fixed block is fixedly connected to the fixed frame, and the movable base is used to translate relative to the storage box to drive the support rod set to lift the storage box.

[0009] According to some embodiments of the present application, the support rod set comprises a first support rod and a second support rod, the first support rod and the second support rod intersect and are hinged to each other, the movable base is hinged to one end of the first support rod, the fixed block is hinged to the other end of the first support rod, the movable frame further comprises a fixed base and a movable block, the fixed base is hinged to one end of the second support rod, the movable block is hinged to the other end of the second support rod, the fixed base is fixedly connected to the storage box, and the movable block is slidably connected to the fixed frame, or the fixed base is fixedly connected to the fixed frame, and the movable block is slidably connected to the storage box.

[0010] According to some embodiments of the present application, the lifting mechanism further comprises a locking module, the locking module is movably connected to the movable base to limit or release the limitation of the movable base.

[0011] According to some embodiments of the present application, the locking module comprises a locking structure, a connecting shaft and a control switch, the connecting shaft penetrates the movable base, one end of the locking structure is connected to the connecting shaft, the control switch is located at the end of the connecting shaft away from the movable base, and the control switch is used to drive the connecting shaft to rotate relative to the movable base to make the locking structure rotate to abut against the movable base or rotate to separate from the movable base.

[0012] According to some embodiments of the present application, the fixed frame is provided with a first sliding groove, the movable base is slidably installed in the first sliding groove, one end of the locking structure is connected to the connecting shaft and extends towards the movable base, and the control switch is used to control the locking structure to rotate to abut against the side of the movable base close to the control switch when the movable base moves away from the control switch to abut against the inner wall of the first sliding groove.

[0013] According to some embodiments of the present application, the fixed frame comprises a bottom plate and a side plate, the bottom plate and the side plate enclosing a receiving space, the receiving space having a first opening, the side plate being provided with a first through hole communicating with the receiving space, the movable frame and the locking structure being located in the receiving space, the movable base being slidably connected to the bottom plate, the movable frame being used to drive the storage box to exit or enter the receiving space via the first opening, the connecting shaft movably penetrating the first through hole, the control switch being located outside the receiving space,

[0014] The locking module further comprises a driving conduit and an elastic member located in the receiving space, the driving conduit and the elastic member being sleeved on the outer periphery of the connecting shaft and located between the movable base and the control switch, one end of the elastic member being connected to the driving conduit, the other end of the elastic member being connected to the control switch, the control switch being used to drive the elastic member to deform and generate an elastic restoring force, so as to drive the driving conduit to push the movable base to move in a direction away from the control switch.

[0015] According to some embodiments of the present application, the storage box comprises a box body and a box door, the box body being provided with a storage space, the storage space having a second opening, the box door being movably mounted on the box body to open or close the second opening.

[0016] According to some embodiments of the present application, the armrest assembly further comprises a pulley, the pulley being arranged at the bottom of the lifting mechanism, the armrest assembly being detachably connected to the sofa body.

[0017] The sofa according to the second aspect of the embodiments of the present application comprises a sofa body and the armrest assembly according to the first aspect.

[0018] The sofa according to the embodiments of the present application has at least the following beneficial effects: the function of the sofa can be enriched, and the practicability of the sofa is improved.

[0019] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0021] Figure 1 The structure schematic diagram of the sofa according to the embodiments of the present application in the state that the armrest assembly is flush with the seat surface;

[0022] Figure 2 The structure schematic diagram of the sofa according to the embodiments of the present application in the state that the armrest assembly is protruded relative to the seat surface;

[0023] Figure 3 The disassembling schematic view of the sofa disclosed by the embodiment of the present application;

[0024] Figure 4 The partial sectional view of the armrest assembly disclosed by the embodiment of the present application in the state of being flush with the seat surface;

[0025] Figure 5 The partial sectional view of the armrest assembly disclosed by the embodiment of the present application in the state of being protruded relative to the seat surface;

[0026] Figure 6 The three-dimensional schematic view of the lifting mechanism disclosed by the embodiment of the present application in the state of the armrest assembly being flush with the seat surface;

[0027] Figure 7 The three-dimensional schematic view of the lifting mechanism disclosed by the embodiment of the present application in the state of the armrest assembly being protruded relative to the seat surface;

[0028] Figure 8 The Figure 7 The enlarged view of A in FIG. 6;

[0029] Figure 9 The schematic view of the lifting mechanism in the first alternative embodiment disclosed by the embodiment of the present application;

[0030] Figure 10 The schematic view of the lifting mechanism in the second alternative embodiment disclosed by the embodiment of the present application in the state of the armrest assembly being flush with the seat surface;

[0031] Figure 11 The schematic view of the lifting mechanism in the second alternative embodiment disclosed by the embodiment of the present application in the state of the armrest assembly being protruded relative to the seat surface;

[0032] Figure 12 The Figure 11 The enlarged view of B in FIG. 8;

[0033] Figure 13 The schematic view of the lifting mechanism in the third alternative embodiment disclosed by the embodiment of the present application;

[0034] Figure 14 The assembly schematic view of the connecting shaft and the control switch disclosed by the embodiment of the present application.

[0035] Reference signs:

[0036] 1, armrest assembly; 11, armrest body; 111, armrest part; 112, storage box; 1121, box body; 1122, box door; 11221, buckle slot; 12, lifting mechanism; 121, movable frame; 1211, movable base; 1212, fixed block; 1213, support rod set; 12131, first support rod; 12132, second support rod; 122, fixed base; 123, movable block; 124, locking module; 1241, locking structure; 12411, first connecting part; 12412, second connecting part; 12413, third connecting part; 12414, limiting part; 1242, connecting shaft; 1243, control switch; 12431, sleeve; 12432, matching part; 12433, holding part; 1244, driving conduit; 1245, elastic piece; 13, fixed frame; 131, bottom plate; 1311, first sliding groove; 132, side plate; 1321, first magnetic piece; 133, accommodating space; 1331, first opening; 14, pulley;

[0037] 2, sofa; 21, sofa body; 211, seat surface; 22, second magnetic piece. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0039] In the description of the present application, it should be understood that if the orientation or positional relationship indicated by the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described that the first, second is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0041] In the description of the application, unless specifically defined and limited, the terms "set", "install", "connect", "connect" should be broadly understood, for example: can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In the description of the application, if the description of the terms "as an embodiment", "an embodiment", "some examples", "some embodiments", "illustrative embodiments", "example", "specific example", "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The embodiment of the application discloses a handrail assembly which can be applied to a sofa to enrich the function of the sofa and improve the practicability of the sofa.

[0044] In order to facilitate understanding of the structure of the handrail assembly and the sofa, the handrail assembly and the sofa will be further described below in combination with the embodiments and the drawings.

[0045] Please refer to Figures 1 to 3 The embodiment of the application provides a sofa 2 which comprises a sofa body 21 and a handrail assembly 1. Please combine Figures 4 to 8 The handrail assembly 1 comprises a handrail body 11 and a lifting mechanism 12, the handrail body 11 comprises a handrail part 111 and a storage box 112, the handrail part 111 is arranged at the top of the storage box 112, the storage box 112 has a storage space, the lifting mechanism 12 is connected to the bottom of the storage box 112, and the lifting mechanism 12 is used to drive the handrail body 11 to move up and down relative to the sofa body 21, so that the handrail part 111 is flush with the seat surface 211 of the sofa body 21, or the handrail part 111 is protruded relative to the seat surface 211 of the sofa body 21.

[0046] The armrest assembly 1 and the sofa 2 provided by the embodiment of the present application can be used for storing articles in addition to being used for hand holding by the user, so as to improve the space utilization rate inside the armrest body 11, enrich the function of the armrest assembly 1, and thus enrich the function of the sofa 2. Meanwhile, the armrest body 11 can be moved up and down relative to the sofa body 21 by the lifting mechanism 12. When the armrest part 111 is moved to the position protruding relative to the seat surface 211 of the sofa body 21 by the lifting mechanism 12, the armrest assembly 1 can be used for hand holding by the user, and the storage box 112 is exposed relative to the seat surface 211, which is beneficial to the taking and placing of articles in the storage box 112. When the armrest part 111 is moved to the position flush with the seat surface 211 of the sofa body 21 by the lifting mechanism 12, the top of the armrest assembly 1 and the seat surface 211 together serve as a bearing surface, so as to widen the seat width of the sofa 2, which is beneficial to meeting the use requirements in different scenes (for example, multiple people sitting or lying, the sofa 2 being used in combination with other furniture, etc.). It can be seen that the armrest assembly 1 and the sofa 2 provided by the embodiment of the present application can make the sofa 2 applicable to different use scenes, so as to enrich the function of the sofa 2 and improve the practicality of the sofa 2.

[0047] In addition, when the armrest part 111 is moved to the position flush with the seat surface 211 of the sofa body 21 by the lifting mechanism 12, the storage box 112 is hidden under the seat surface 211, which can improve the safety of the storage box 112, so that the articles stored in the storage box 112 are not easy to be found by people, and the situation that the articles in the storage box 112 are dropped due to accidental touch can be avoided. When the armrest part 111 is moved to the position protruding relative to the seat surface 211 of the sofa body 21, the height of the armrest part 111 can be controlled, which is beneficial to improving the flexibility of the armrest assembly 1, so that the armrest assembly 1 can be used in a wider range of purposes, for example, in addition to being used as an armrest, the armrest assembly 1 can also be used as a headrest or a footstool.

[0048] Please refer to Figures 9 to 13 In some embodiments, the armrest assembly 1 further comprises a fixed frame 13, and the lifting mechanism 12 comprises a movable frame 121, the movable frame 121 comprising a movable base 1211, a fixed block 1212 and a support rod set 1213, one end of the support rod set 1213 being hinged to the movable base 1211, the other end of the support rod set 1213 being hinged to the fixed block 1212, the fixed block 1212 being fixedly connected to the storage box 112, the movable base 1211 being slidably connected to the fixed frame 13, or the movable base 1211 being slidably connected to the storage box 112, the fixed block 1212 being fixedly connected to the fixed frame 13, and the movable base 1211 being used for translating relative to the storage box 112, so as to drive the storage box 112 to move up and down by the support rod set 1213. In this way, the movable frame 121 has a simple structure, which is beneficial to simplifying the structure of the lifting mechanism 12.

[0049] It can be understood that in other embodiments, the armrest assembly 1 can also not be provided with the fixed frame 13, and the fixed block 1212 is fixedly connected to the storage box 112, and the movable base 1211 is placed on the ground and is slidable relative to the ground. Alternatively, in other embodiments, the lifting mechanism 12 can also be a vertical telescopic rod or sleeve.

[0050] Please refer to Figure 9 As a first optional embodiment, the support rod group 1213 includes a first support rod 12131 and a second support rod 12132, the first support rod 12131 intersects the second support rod 12132 and is hingedly connected to each other, the movable base 1211 is hingedly connected to one end of the first support rod 12131, the fixed block 1212 is hingedly connected to the other end of the first support rod 12131, the movable frame 121 further includes a fixed base 122 and a movable block 123, the fixed base 122 is hingedly connected to one end of the second support rod 12132, the movable block 123 is hingedly connected to the other end of the second support rod 12132, the fixed base 122 is fixedly connected to the storage box 112, and the movable block 123 is slidably connected to the fixed frame 13, or alternatively, the fixed base 122 is fixedly connected to the fixed frame 13, and the movable block 123 is slidably connected to the storage box 112.

[0051] In this way, the movable frame 121 is a scissor-type lifting structure, and the storage box 112 has at least two support points, so that the structure of the armrest assembly 1 is more stable and reliable, so that the armrest body 11 moves more smoothly when lifting, and is beneficial to keep the structure of the armrest assembly 1 stable when bearing gravity, so as to ensure the reliability of the armrest assembly 1.

[0052] Please refer to Figure 10 and Figure 11 The second optional embodiment is a further improvement based on the first embodiment. Optionally, on the basis of the first embodiment, the first support rod 12131 and the second support rod 12132 further include a plurality of sub-rods, the plurality of sub-rods of each support rod are arranged in sequence along the height direction of the sofa 2, and adjacent two sub-rods of each support rod are hingedly connected. Thus, the lifting size of the storage box 112 can be ensured while reducing the movement distance of the movable base 1211, so as to increase the activity range of the armrest body 11, make the adjustment of the armrest assembly 1 more flexible, facilitate the user to adjust the appropriate armrest height according to the needs, and further improve the practicability of the sofa 2.

[0053] The first support rod 12131 and the second support rod 12132 each include two sub-rods, in this embodiment, the first support rod 12131 includes a first sub-rod and a second sub-rod, the movable base 1211 is slidably connected to the fixed frame 13, the movable block 123 is slidably connected to the storage box 112, one end of the first sub-rod is hingedly connected to the movable base 1211, one end of the second sub-rod is hingedly connected to the movable block 123, the other end of the first sub-rod is hingedly connected to the other end of the second sub-rod and forms a first hinged joint, the second support rod 12132 includes a third sub-rod and a fourth sub-rod, the fixed base 122 is fixedly connected to the fixed frame 13, the fixed block 1212 is fixedly connected to the storage box 112, one end of the third sub-rod is hingedly connected to the fixed base 122, one end of the fourth sub-rod is hingedly connected to the fixed block 1212, the other end of the third sub-rod is hingedly connected to the other end of the fourth sub-rod and forms a second hinged joint, and the first sub-rod intersects with the third sub-rod and is hingedly connected, and the second sub-rod intersects with the fourth sub-rod and is hingedly connected.

[0054] When the movable base 1211 moves towards the fixed base 122, the first sub-rod rotates clockwise under the restriction of the third sub-rod to make the first hinged joint ascend along the height direction of the sofa 2, and the second sub-rod has a movement trend, the second sub-rod rotates counterclockwise under the restriction of the fourth sub-rod to drive the storage box 112 to ascend along the height direction of the sofa 2, and the movable block 123 moves towards the fixed block 1212, at this time, the included angle between the first sub-rod and the second sub-rod increases; the fourth sub-rod and the second hinged joint ascend along the height direction of the sofa 2 to make the fourth sub-rod rotate clockwise and the third sub-rod rotate counterclockwise, at this time, the included angle between the third sub-rod and the fourth sub-rod increases, thereby completing the ascending of the armrest body 11. When the armrest body 11 descends, the included angle between the first sub-rod and the second sub-rod decreases, the included angle between the third sub-rod and the fourth sub-rod decreases, the movable base 1211 moves away from the fixed base 122, and the movable block 123 moves away from the fixed block 1212.

[0055] Please refer to Figure 13 , the third alternative embodiment, the support rod group 1213 includes a support rod, one end of the support rod is hingedly connected to the movable base 1211, the other end of the support rod is hingedly connected to the fixed block 1212, the fixed block 1212 is fixedly connected to the storage box 112, and the movable base 1211 is slidably connected to the fixed frame 13. The support rod drives the storage box 112 to ascend and descend by controlling the movable base 1211 to slide relative to the fixed frame.

[0056] The second alternative embodiment is taken as an example for expansion description.

[0057] Please refer to Figures 6 to 8 and Figure 10 and Figure 12In some embodiments, the lifting mechanism 12 further comprises a locking module 124 movably connected to the movable base 1211 to limit or release the movable base 1211. Thus, the movable base 1211 can be fixed to fix the storage box 112 at the current height, which is beneficial to improve the structural stability and reliability of the movable frame 121, avoid the height change of the handrail assembly 1 due to the influence of gravity or accidental touch, and affect the user experience.

[0058] Optionally, the locking module 124 comprises a locking structure 1241, a connecting shaft 1242, and a control switch 1243. The connecting shaft 1242 movably penetrates the movable base 1211, one end of the locking structure 1241 is connected to the connecting shaft 1242, and the control switch 1243 is located at the end of the connecting shaft 1242 away from the movable base 1211. The control switch 1243 is used to drive the connecting shaft 1242 to rotate relative to the movable base 1211, so that the locking structure 1241 rotates to limit the displacement of the movable base 1211, or the locking structure 1241 rotates to release the limit of the movable base 1211. The fixed base 122 is located on the side of the movable base 1211 away from the control switch 1243, and the end of the connecting shaft 1242 away from the control switch 1243 is rotatably connected to the fixed base 122. Thus, the connecting shaft 1242 can be axially positioned by the fixed base 122, so that the relative position between the connecting shaft 1242 and the fixed frame 13 remains fixed along the axial direction of the connecting shaft 1242, which is beneficial to avoid abnormal locking of the locking structure 1241 to the movable base 1211 due to accidental touch or movement of the movable base 1211 driving the connecting shaft 1242.

[0059] In this way, the control switch 1243 is rotated to drive the locking structure 1241 to rotate relative to the movable base 1211, which can limit and release the movable base 1211, so that the locking state of the movable frame 121 is switched more conveniently. When the locking structure 1241 limits the displacement of the movable base 1211, the structure of the movable frame 121 is locked, and at this time the height of the movable frame 121 is fixed, which is beneficial to keep the current height of the handrail body 11, thereby improving the structural stability and reliability of the handrail assembly 1. When the locking structure 1241 releases the limit of the movable base 1211, the structure of the movable frame 121 is released, and at this time the height of the movable frame 121 can be freely adjusted, and the height of the handrail body 11 can be adjusted, so as to adjust the height of the handrail assembly 1 relative to the sofa body 21, so that the user can flexibly switch the working mode of the handrail assembly 1 according to actual needs. It can be understood that in other embodiments, the fixed base 122 can also be located between the movable base 1211 and the control switch 1243.

[0060] Optionally, the fixing frame 13 is provided with a first sliding groove 1311, the movable base 1211 is slidably installed in the first sliding groove 1311, one end of the locking structure 1241 is connected to the connecting shaft 1242 and extends towards the movable base 1211, and the control switch 1243 is used to control the locking structure 1241 to rotate to abut against one side of the movable base 1211 close to the control switch 1243 when the movable base 1211 moves away from the control switch 1243 to abut against the inner wall of the first sliding groove 1311.

[0061] In this way, the inner wall of the first sliding groove 1311 and the locking structure 1241 abut against two sides of the movable base 1211 respectively to limit the movable base 1211, so that the height of the movable frame 121 remains stable, and when the locking structure 1241 rotates to release the limitation, the movable base 1211 can slide flexibly in the first sliding groove 1311 to facilitate the adjustment of the height of the movable frame 121. In addition, by providing the first sliding groove 1311, the movement stroke of the movable base 1211 can be limited to facilitate the control of the lifting height of the movable frame 121, and avoid the situation that the structure of the movable frame 121 is deformed too much to cause jamming or structural interference damage.

[0062] Optionally, the bottom of the storage box 112 is provided with a second sliding groove, and the movable block 123 is slidably connected to the second sliding groove. Thus, the movement stroke of the movable block 123 can be limited by the second sliding groove to cooperate with the movement of the movable base 1211 to control the lifting height of the movable frame 121, improve the structural reliability of the movable frame 121, and avoid the situation that the structure of the movable frame 121 is deformed too much to cause jamming or structural interference damage.

[0063] In some embodiments, the end of the locking structure 1241 connected to the connecting shaft 1242 can be located on the side of the movable base 1211 away from the control switch 1243 to facilitate avoiding the movable base 1211, ensure that the movable base 1211 can move in the first sliding groove 1311, and reserve space between the movable base 1211 and the control switch 1243 to reserve a larger design space for the driving part of the movable base 1211 and the locking structure 1241.

[0064] It can be understood that in other embodiments, the end of the locking structure 1241 connected to the connecting shaft 1242 can also be located between the movable base 1211 and the control switch 1243.

[0065] Optionally, the locking structure 1241 comprises a first connecting portion 12411, a second connecting portion 12412, a third connecting portion 12413 and a limiting portion 12414 connected in sequence, one end of the first connecting portion 12411 away from the second connecting portion 12412 is connected to the connecting shaft 1242, the first connecting portion 12411 and the second connecting portion 12412 respectively extend along the radial direction of the connecting shaft 1242, and the extending directions of the first connecting portion 12411 and the second connecting portion 12412 are perpendicular to each other, the length of one of the first connecting portion 12411 and the second connecting portion 12412 is greater than the distance from the connecting shaft 1242 to the outer circumference of the movable base 1211, the first connecting portion 12411 and the second connecting portion 12412 are located on the side of the movable base 1211 away from the control switch 1243, the third connecting portion 12413 extends along the axial direction of the connecting shaft 1242, the length of the third connecting portion 12413 is greater than or equal to the axial dimension of the movable base 1211 along the connecting shaft 1242, the limiting portion 12414 extends from one end connected to the third connecting portion 12413 towards the connecting shaft 1242, and the extending direction of the limiting portion 12414 is parallel to the radial direction of the connecting shaft 1242, and the limiting portion 12414 is used for abutting against the movable base 1211 to limit the movement of the movable base 1211 along the axial direction of the connecting shaft 1242.

[0066] In this way, when the locking structure 1241 is rotated to abut against the movable base 1211, the movable base 1211 is located between the second connecting portion 12412 and the limiting portion 12414, and the movement of the movable base 1211 along the axial direction of the connecting shaft 1242 is limited by the inner wall of the first sliding groove 1311 and the limiting portion 12414, so as to limit the movable base 1211, when the locking structure 1241 is rotated to separate from the movable base 1211, the limitation of the locking structure 1241 to the movable base 1211 is released, and the movable base 1211 can move freely, since the length of the second connecting portion 12412 is greater than the distance from the connecting shaft 1242 to the outer circumference of the movable base 1211, the second connecting portion 12412 can avoid the movable base 1211 when the movable base 1211 moves, so as to ensure the movement flexibility of the movable base 1211, thereby ensuring the movement reliability of the lifting mechanism 12.

[0067] Optionally, the length of the third connecting portion 12413 is greater than the axial dimension of the movable base 1211 along the connecting shaft 1242, so as to reserve a certain position error for the movable base 1211, which is beneficial to ensure the rotation of the locking structure 1241 relative to the movable base 1211, and avoid the interference or wear of the structure.

[0068] For example, when the locking structure 1241 rotates to release the restriction of the movable base 1211, the locking module 124 is in the unlocked state, at this time, the first connecting part 12411 extends along the height direction of the sofa 2, the length of the first connecting part 12411 is less than the distance from the connecting shaft 1242 to the outer circumference of the movable base 1211, the second connecting part 12412 extends along the direction perpendicular to the height direction of the sofa 2 and the axis direction of the connecting shaft 1242, the length of the second connecting part 12412 is greater than the distance from the connecting shaft 1242 to the outer circumference of the movable base 1211, the limiting part 12414 is connected to the side of the third connecting part 12413 close to the movable base 1211, the limiting part 12414 is located at the bottom of the movable base 1211 and extends along the height direction of the sofa 2 towards the connecting shaft 1242, so as to ensure that the movable base 1211 can move relative to the locking structure 1241. When the control switch 1243 drives the connecting shaft 1242 to rotate 90° clockwise, the locking structure 1241 rotates to restrict the movement of the movable base 1211, and the locking module 124 is in the locked state, at this time, the second connecting part 12412 extends along the height direction of the sofa 2, the first connecting part 12411 extends along the direction perpendicular to the height direction of the sofa 2 and the axis direction of the connecting shaft 1242, the limiting part 12414 is located at the top of the movable base 1211 and extends along the extension direction of the first connecting part 12411 towards the axis of the connecting shaft 1242, and the projection of the limiting part 12414 along the axial direction of the connecting shaft 1242 has an overlapping part with the projection of the movable base 1211 along the axial direction of the connecting shaft 1242, and the movable base 1211 is restricted from moving along the axial direction of the connecting shaft 1242 by the limiting part 12414 and the inner wall of the first sliding groove 1311.

[0069] It can be understood that in other embodiments, the locking module 124 can also be a limiting part 12414 and a rotating shaft, one end of the limiting part 12414 is connected to the rotating shaft, the extending direction of the limiting part 12414 is perpendicular to the axis direction of the rotating shaft, the limiting part 12414 and the rotating shaft form an L-shaped structure, the rotating shaft is arranged below the movable base 1211 in the height direction of the sofa 2, by rotating the rotating shaft 90° clockwise or counterclockwise around the axis as the center, so that the length direction of the limiting part 12414 is perpendicular to the height direction of the sofa 2 and the axis direction of the rotating shaft at the same time (at this time, the limiting part 12414 is below the movable base 1211, the movable base 1211 can move freely, and the locking module 124 is in the unlocked state), or the length direction of the limiting part 12414 is parallel to the height direction of the sofa 2 (at this time, the projection of the limiting part 12414 along the axis direction of the rotating shaft and the projection of the movable base 1211 along the axis direction of the rotating shaft have an overlapping part, the limiting part 12414 abuts against the movable base 1211, and the movement of the movable base 1211 is limited by the limiting part 12414 and the inner wall of the first sliding groove 1311, so that the locking module 124 is in the locked state). Or, in other embodiments, the fixed frame 13 and the first sliding groove 1311 are not required to be arranged, and the locking module 124 can also be two telescopic rods, the two telescopic rods are respectively located at two opposite sides of the movable base 1211, by controlling the two telescopic rods to respectively extend to abut against the two sides of the movable base 1211 to realize limiting, and by shortening the telescopic rods to leave the movable base 1211 to release the limiting.

[0070] In some embodiments, the fixed frame 13 includes a bottom plate 131 and a side plate 132 (see Figure 4 and Figure 5The bottom plate 131 and the side plate 132 form a containing space 133, the containing space 133 is provided with a first opening 1331, the side plate 132 is provided with a first through hole in communication with the containing space 133, the movable frame 121 and the locking structure 1241 are located in the containing space 133, the first sliding groove 1311 is arranged on the bottom plate 131, the movable base 1211 is slidably connected to the bottom plate 131 through the first sliding groove 1311, the movable frame 121 is used for driving the storage box 112 to exit or enter the containing space 133 through the first opening 1331, the connecting shaft 1242 is movably arranged in the first through hole, the control switch 1243 is located outside the containing space 133, the locking module 124 further includes a driving guide pipe 1244 and an elastic member 1245 located in the containing space 133, the driving guide pipe 1244 and the elastic member 1245 are sleeved on the outer periphery of the connecting shaft 1242 and located between the movable base 1211 and the control switch 1243, one end of the elastic member 1245 is connected to the driving guide pipe 1244, the other end of the elastic member 1245 is connected to the control switch 1243, and the control switch 1243 is used to drive the elastic member 1245 to deform and generate an elastic restoring force, so as to drive the driving guide pipe 1244 to push the movable base 1211 to move away from the control switch 1243.

[0071] In this way, the elastic member 1245 is deformed by manually pressing or pulling the control switch 1243, the elastic restoring force generated by the deformation of the elastic member 1245 is used to drive the driving guide pipe 1244 to move towards the movable base 1211 and drive the movable base 1211 to move away from the control switch 1243, so that the movable base 1211 moves in the first sliding groove 1311, which can reduce the power source compared with hydraulic drive or electric drive, and reduce the cost of the sofa 2. At the same time, the fixed frame 13 is designed as a hollow structure, which can accommodate the armrest body 11 when the lifting mechanism 12 is lowered, avoiding the structure from being exposed, thereby not only being beneficial to protecting the structure and improving the reliability of the structure, but also being beneficial to hiding the storage box 112 and improving the safety performance of the storage box 112, and further being beneficial to maintaining the smooth beauty of the sofa 2 and improving the appearance of the sofa 2.

[0072] It should be noted that due to the size and material limitations of the elastic member 1245, the elastic restoring force generated by the elastic member 1245 is limited, so that the distance of the movable base 1211 moving in the first sliding groove 1311 is limited, thereby limiting the height of the movable frame 121, at this time, the user can manually pull the lifting armrest body 11 to lift the armrest body 11 to a target height, so that the height of the armrest body 11 is more flexible, which is beneficial to improving the user experience of the armrest assembly 1 and meeting the different height requirements of the user for the armrest assembly 1.

[0073] Optionally, as known from the foregoing, the first support rod 12131 and the second support rod 12132 each comprise a plurality of sub-rods, and based on this, the movable frame 121 is provided with damping material at the connection between adjacent two sub-rods, so that the movable frame 121 has a certain damping feeling when the height is adjusted, so as to facilitate the height of the movable frame 121 to be stable, meet the different height requirements of the user on the handrail assembly 1, and at the same time, when the user manually pulls the lifting handrail body 11, the lifting speed of the handrail body 11 can be slowed down, so as to facilitate the user to adjust the height of the movable frame 121 and improve the accuracy of the height control of the movable frame 121.

[0074] It can be understood that, in other embodiments, the fixed frame 13 can also be a long strip or block structure, and the driving mode of the movable base 1211 can also be driven by a hydraulic rod, an electric telescopic rod, an air cylinder or a ball screw.

[0075] Please refer to Figure 14 Optionally, the control switch 1243 comprises a sleeve 12431, a matching part 12432 and a holding part 12433, the holding part 12433 is connected to one end of the sleeve 12431 away from the movable base 1211, the matching part 12432 is arranged inside the sleeve 12431 and connected to the holding part 12433, one end of the connecting shaft 1242 away from the fixed base 122 partially extends into the sleeve 12431 and has a movable distance relative to the holding part 12433, the connecting shaft 1242 is a hollow pipe, the control switch 1243 is used to push the driving conduit 1244 to move relative to the connecting shaft 1242 under the action of external force, and when the sleeve 12431 moves relative to the connecting shaft 1242 to the end of the holding part 12433 abutting against the connecting shaft 1242, the connecting shaft 1242 is clamped between the matching part 12432 and the sleeve 12431, so that the connecting shaft 1242 and the locking structure 1241 can be rotated together when the holding part 12433 is rotated, thereby realizing the locking and unlocking of the movable base 1211. When the holding part 12433 does not need to drive the connecting shaft 1242 to rotate, the holding part 12433 is pulled away from the connecting shaft 1242, and since one end of the connecting shaft 1242 away from the control switch 1243 is fixedly connected to the fixed base 122, the control switch 1243 can be separated from the connecting shaft 1242, so as to facilitate the control switch 1243 to push the driving conduit 1244 to move.

[0076] Optionally, the holding part 12433 can be a rectangular structure, so as to facilitate the user to judge the rotation angle and facilitate the user to hold and use.

[0077] In order to facilitate reading and understanding, the movement process of the lifting mechanism 12 is simply illustrated as follows:

[0078] When the armrest assembly 1 is in the lowest position, the armrest part 111 is flush with the seat surface 211 of the sofa body 21, the armrest part 111 and the storage box 112 are located in the accommodating space 133 of the fixed frame 13, and the movable base 1211 is located at one end of the first sliding groove 1311 away from the fixed base 122 and abuts against the inner wall of the first sliding groove 1311. By pressing the holding part 12433 of the control switch 1243 to abut against the connecting shaft 1242, the connecting shaft 1242 is clamped between the sleeve 12431 and the matching part 12432, and the movement of the sleeve 12431 triggers the compression deformation of the elastic piece 1245. Under the action of the elastic recovery force, the elastic piece 1245 pushes the driving conduit 1244 to move towards the movable base 1211, the driving conduit 1244 pushes the movable base 1211 to move towards the fixed base 122, and the movable frame 121 is slightly lifted under the movement of the movable base 1211, so that the armrest body 11 is slightly raised and protrudes relative to the seat surface 211 of the sofa body 21, so as to facilitate the user to grab the armrest body 11. By manually pulling the armrest body 11, the movable base 1211 gradually moves towards the fixed base 122 under the action of the pulling force of the user, and the movable block 123 gradually moves towards the fixed block 1212 under the action of the pulling force of the user. When the movable base 1211 moves to one end of the first sliding groove 1311 close to the fixed base 122 and abuts against the inner wall of the first sliding groove 1311, the movable frame 121 is lifted to the highest height. At this time, the holding part 12433 is rotated clockwise or counterclockwise by 90° around the axis line of the connecting shaft 1242 to drive the connecting shaft 1242 and the locking structure 1241 to rotate relative to the movable base 1211, so that the limiting part 12414 of the locking module 124 abuts against the inner wall of the first sliding groove 1311 to limit the movement of the movable base 1211, thereby locking the movable base 1211 and keeping the movable frame 121 at the current height, so as to ensure the stability of the armrest assembly 1.

[0079] It should be noted that when the armrest assembly 1 is located at a height between the highest position and the lowest position, the movable frame 121 can be stabilized at the current height by the damping material to fix the armrest body 11 at the current height, so as to meet the use requirements of the user for the armrest assembly 1 at different heights.

[0080] When it is needed to lower the armrest assembly 1, the holding part 12433 is rotated 90° counterclockwise or clockwise with the axis of the connecting shaft 1242 as the center, so as to drive the connecting shaft 1242 and the locking structure 1241 to rotate relative to the movable base 1211, so that the limiting part 12414 of the locking module 124 is connected with the movable base 1211, and the limiting of the movable base 1211 is released. At this time, by applying downward pressure to the armrest part 111, the movable base 1211 is moved away from the fixed base 122, so as to drive the movable frame 121 to be folded, so that the height of the armrest body 11 is lowered.

[0081] When it is needed to control the switch 1243 to drive the driving conduit 1244, first, the holding part 12433 is pulled away from the fixed base 122, so that the holding part 12433 is separated from the connecting shaft 1242. At this time, the connecting shaft 1242 is movable relative to the control switch 1243, and the end of the connecting shaft 1242 has a certain movement space away from the holding part 12433. Then, the holding part 12433 is pressed, so as to compress the elastic member 1245 and generate elastic restoring force to drive the driving conduit 1244 to move relative to the connecting shaft 1242, so that the driving conduit 1244 drives the movable base 1211 to move towards the fixed base 122.

[0082] Please refer again to Figures 2 to 5 In some embodiments, the storage box 112 includes a box body 1121 and a box door 1122. The box body 1121 is provided with a storage space having a second opening, and the box door 1122 is movably mounted on the box body 1121 to open or close the second opening. Thus, the safety of the storage box 112 can be improved, the articles stored in the storage box 112 are safer, and the appearance of the sofa 2 can be improved, so as to avoid the situation that the visual angle is not beautiful due to the articles stored in the storage box 112 being placed too disorderly or dust accumulation.

[0083] Optionally, the box door 1122 can be a left-right sliding door. The box body 1121 is provided with a sliding rail, and the box door 1122 is slidably connected to the box body 1121 through the sliding rail, so as to facilitate opening and closing of the box door 1122 while ensuring the size of the storage space of the storage box 112.

[0084] Optionally, the box door 1122 is provided with a hand slot 11221 or a handle, so as to facilitate movement of the box door 1122 and opening and closing of the box door 1122.

[0085] It can be understood that in other embodiments, the box door 1122 can also be an inwardly opening translation door or a left-right folding door.

[0086] In some embodiments, the armrest assembly 1 further comprises a pulley 14 arranged at the bottom of the lifting mechanism 12, and the armrest assembly 1 is detachably connected to the sofa body 21. Thus, the layout and shape of the sofa 2 can be adjusted conveniently, and the sofa 2 has higher flexibility in use, so as to be suitable for different use scenarios and further improve the practicability of the sofa 2. Optionally, the pulley 14 comprises a roller and a wheel lock, and the direction of the roller can be locked by the wheel lock, so that the pulley 14 cannot roll, thereby facilitating the armrest assembly 1 to be kept stable relative to the sofa body 21 and improving the stability of the sofa 2.

[0087] Optionally, the connection between the armrest assembly 1 and the sofa body 21 can be any one of magnetic connection, threaded connection or buckle connection, so as to make the assembly and disassembly of the armrest assembly 1 and the sofa body 21 more convenient.

[0088] In an example, the armrest assembly 1 is magnetically connected to the sofa body 21. Specifically, the side plate 132 of the fixing frame 13 is provided with a first magnetic member 1321, and the sofa body 21 is provided with a second magnetic member 22, the magnetic poles of the first magnetic member 1321 and the second magnetic member 22 are opposite, and the detachable connection between the armrest assembly 1 and the sofa body 21 is realized through the magnetic connection between the first magnetic member 1321 and the second magnetic member 22. At the same time, since the first magnetic member 1321 is arranged on the fixing frame 13, the lifting function of the armrest body 11 relative to the sofa body 21 can be ensured.

[0089] In another example, the armrest assembly 1 is buckled to the sofa body 21. Specifically, the side plate 132 of the fixing frame 13 is provided with a first buckle member, and the sofa body 21 is provided with a second buckle member, the first buckle member is movably connected to the side plate 132, or the second buckle member is movably connected to the sofa body 21, so that the first buckle member and the second buckle member can move to be buckled to each other, thereby fixing the armrest assembly 1 relative to the sofa body 21, and when the first buckle member and the second buckle member move to be separated, the armrest assembly 1 can move relative to the sofa body 21.

[0090] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A handrail assembly, characterized by The application is applied to a sofa, which comprises a sofa body and a handrail assembly. The handrail assembly comprises a handrail body and a storage box, wherein the handrail part is arranged on the top of the storage box, and the storage box has a storage space. The lifting mechanism is connected to the bottom of the storage box and is used to drive the handrail body to move up and down relative to the sofa body, so that the handrail part is flush with or protrudes from the seat surface of the sofa body.

2. The handrail assembly of claim 1, wherein, The handrail assembly further comprises a fixed frame, and the lifting mechanism comprises a movable frame, which comprises a movable base, a fixed block and a support rod group.

3. The handrail assembly of claim 2, wherein, One end of the support rod group is hinged to the movable base, and the other end of the support rod group is hinged to the fixed block.

4. The handrail assembly of claim 2, wherein, The fixed block is fixedly connected to the storage box, and the movable base is slidably connected to the fixed frame or the storage box.

5. The handrail assembly of claim 4, wherein, The fixed block is fixedly connected to the fixed frame, and the movable base is used to translate relative to the storage box to drive the support rod group to move up and down with the storage box.

6. The handrail assembly of claim 5, wherein, The support rod group comprises a first support rod and a second support rod, and the first support rod and the second support rod are intersected and hinged to each other. The movable base is hinged to one end of the first support rod, and the fixed block is hinged to the other end of the first support rod. The movable frame further comprises a fixed base and a movable block, and the fixed base is hinged to one end of the second support rod, and the movable block is hinged to the other end of the second support rod. The fixed base is fixedly connected to the storage box, and the movable block is slidably connected to the fixed frame or the storage box. The fixed base is fixedly connected to the fixed frame, and the movable block is slidably connected to the storage box. The lifting mechanism further comprises a locking module, which is movably connected to the movable base to limit or release the limitation of the movable base. The locking module comprises a locking structure, a connecting shaft and a control switch. The connecting shaft penetrates the movable base, one end of the locking structure is connected to the connecting shaft, and the control switch is located at the end of the connecting shaft away from the movable base. The control switch is used to drive the connecting shaft to rotate relative to the movable base, so that the locking structure is rotated to abut against the movable base or is rotated to be separated from the movable base. The fixed frame is provided with a first sliding groove, and the movable base is slidably installed in the first sliding groove. One end of the locking structure is connected to the connecting shaft and extends towards the movable base, and the control switch is used to control the locking structure to rotate to abut against the side of the movable base close to the control switch when the movable base moves away from the control switch to abut against the inner wall of the first sliding groove.

7. The handrail assembly of claim 5, wherein, The fixed frame comprises a bottom plate and a side plate, the bottom plate and the side plate enclosing a containing space, the containing space having a first opening, the side plate being provided with a first through hole communicating with the containing space, the movable frame and the locking structure being located in the containing space, the movable base being slidably connected to the bottom plate, the movable frame being used to drive the storage box to leave or enter the containing space via the first opening, the connecting shaft movably penetrating the first through hole, the control switch being located outside the containing space, The locking module further comprises a driving conduit and an elastic member located in the containing space, the driving conduit and the elastic member being sleeved on the outer periphery of the connecting shaft and located between the movable base and the control switch, one end of the elastic member being connected to the driving conduit, the other end of the elastic member being connected to the control switch, the control switch being used to drive the elastic member to deform and generate an elastic restoring force, so as to drive the driving conduit to push the movable base to move away from the control switch.

8. The handrail assembly of claim 1, wherein, The storage box comprises a box body and a box door, the box body being provided with a storage space, the storage space having a second opening, the box door being movably mounted on the box body to open or close the second opening.

9. The handrail assembly of claim 1, wherein, The armrest assembly further comprises a pulley, the pulley being arranged at the bottom of the lifting mechanism, the armrest assembly being detachably connected to the sofa body.

10. A sofa, characterized in that The sofa body and the armrest assembly as claimed in any one of claims 1-9.

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