Lifting adjusting mechanism of armrest and seat

Abstract

The utility model discloses a lifting adjusting mechanism of an armrest and a seat. The lifting adjusting mechanism of the armrest comprises a fixed seat, a movable seat, a locking piece and an armrest panel, the armrest panel is fixedly connected to the top of the movable seat, the movable seat is movably installed on the fixed seat so that the movable seat can move relative to the fixed seat in the up-down direction, and a plurality of positioning parts distributed in the up-down direction are arranged on the fixed seat; the locking piece is installed on the movable seat and comprises a locking end and an operating end, and the operating end is used for driving the locking end to move so that the locking end can move between a locking position combined with the positioning part and an unlocking position separated from the positioning part. The armrest panel can be quickly moved to a proper position in the vertical direction, the locking end is combined with the positioning part at the corresponding position, the height of the armrest panel can be quickly adjusted, and the adjusting process is quick and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a lifting and lowering adjustment mechanism for an armrest and a seat. Background Art

[0002] The traditional armrests of chairs are fixed and located on the side of the seat cushion. They can only support the user's arms at a specific height, which makes it difficult to meet different sitting posture requirements. As people's daily entertainment life continues to enrich, higher requirements are placed on the functions of chairs. For example, in existing e-sports chairs and learning chairs, armrests are usually movably installed on the chairs so that the armrests can be adjusted up and down to change the height of the top support surface of the armrests, and then the armrests can provide support for the user's arms at multiple different heights, so that the user's arms can get better support when they are in different sitting postures. However, the existing armrest lifting and adjustment mechanism usually has multiple different gears set in the up and down directions, and it often takes multiple adjustments to adjust the armrest to the appropriate height. Utility Model Content

[0003] The utility model aims to provide a lifting and adjusting mechanism for an armrest and a seat, which can realize rapid adjustment of the height of the armrest.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The lifting and lowering adjustment mechanism of the armrest includes a fixed seat, a movable seat, a locking piece, and an armrest panel;

[0006] The armrest panel is fixedly connected to the top of the movable seat, and the movable seat is movably mounted on the fixed seat so that the movable seat can move relative to the fixed seat in the up and down direction, and the fixed seat is provided with a plurality of positioning parts arranged in the up and down direction;

[0007] The locking member is mounted on the movable seat and comprises a locking end and an operating end. The operating end is used to drive the locking end to move so that the locking end can move between a locking position combined with the positioning portion and an unlocking position disengaged from the positioning portion.

[0008] Preferably, the fixed seat and the movable seat are sleeved together, a mounting cavity is formed inside the movable seat, the locking member is located inside the mounting cavity, and the operating end of the locking member protrudes from the outer surface of the movable seat and is located below the armrest panel.

[0009] Preferably, the locking member is rod-shaped, with the operating end and the locking end respectively located at both ends of the locking member. The locking member is pivotally connected to the movable seat through a rotating shaft located between the operating end and the locking end. When the operating end is pushed upward, it drives the locking end to move toward the middle of the installation cavity so that the locking end moves to the unlocking position.

[0010] Preferably, an elastic element is provided between the locking member and the movable seat, and the elastic element is used to apply an elastic stress to the locking member so that the locking end of the locking member always maintains a tendency to move toward the locking position.

[0011] Preferably, the elastic element is a spring, and a cover plate is detachably fixedly connected to the top of the movable seat, the upper end of the spring abuts against the cover plate, and the lower end abuts against the operating end; an axial hole is formed between the cover plate and the movable seat, and the rotating shaft is passed through the axial hole; the operating end is formed by bending the top of the locking piece toward the outside, and a through groove is formed between the cover plate and the top of the movable seat for the operating end to pass through.

[0012] Preferably, a downwardly recessed mounting groove is provided on the top of the movable seat, a protrusion embedded in the opening of the mounting groove is provided on the lower surface of the cover plate, and the shaft hole is surrounded by the bottom surface of the protrusion and the inner wall surface of the mounting groove.

[0013] Preferably, the fixed seat is sleeved on the outside of the movable seat, the positioning portion is a slot arranged on the fixed seat, the locking end is formed by bending the lower end of the locking piece toward the portion where the slot is arranged on the fixed seat, and the movable seat is provided with a through hole for the locking end to pass through.

[0014] Preferably, a supporting convex rib extending in the up-down direction is provided on the inner wall of the fixed seat, and the outer surface of the movable seat is in sliding contact with the supporting convex rib.

[0015] Preferably, the fixed seat is provided with a guide slot extending up and down, and the movable seat is provided with a guide column slidably embedded in the guide slot.

[0016] A seat comprises the above-mentioned lifting and lowering adjustment mechanism for the armrest.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the utility model, the locking piece is driven to move by the operating end, so that the locking end on the locking piece can move between a locking position combined with the positioning part and an unlocking position disengaged from the positioning part. When the locking end is in the locking position, the locking piece can limit the freedom of the movable seat to move up and down relative to the fixed seat, so that the armrest panel can stably support the user's arm. When the height of the armrest panel needs to be adjusted, it is only necessary to toggle the operating end to disengage the locking end from the positioning part. Since the movable seat will not be blocked, the armrest panel can be quickly moved to an appropriate position in the up and down directions. The locking end is combined with the positioning part at the corresponding position to quickly complete the adjustment of the height of the armrest panel, and the adjustment process is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2It is a cross-sectional view of the utility model and describes a usage state of the utility model;

[0021] Figure 3 This is a schematic diagram of another use state of the utility model;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cover.

[0023] Among them: 10, fixed seat; 11, slot; 12, guide slide groove; 13, supporting rib; 14, decorative cover; 20, movable seat; 21, guide column; 22, through hole; 23, installation slot; 24, through slot; 30, armrest panel; 40, locking piece; 41, locking end; 42, operating end; 43, rotating shaft; 50, spring; 60, cover plate; 61, bump. DETAILED DESCRIPTION

[0024] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. 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 limiting the present application.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] like Figure 1 , 2As shown in Figures 3 and 4, a lifting and adjusting mechanism of an armrest of the utility model is provided, which comprises a fixed seat 10, a movable seat 20, a locking member 40 and an armrest panel 30. The armrest panel 30 is fixedly connected to the top of the movable seat 20, and its upper surface forms a supporting surface for supporting the user's arm. The fixed seat 10 is connected to a seat body (such as a seat cushion or a backrest). The movable seat 20 is movably mounted on the fixed seat 10 so that the movable seat 20 can move relative to the fixed seat 10 in the up and down direction. A plurality of positioning portions arranged along the up and down direction are provided on the fixed seat 10. The locking member 40 is mounted on the movable seat 20. When the movable seat 20 moves to a corresponding position relative to the fixed seat 10 in the up and down direction, the locking member 40 can lock the movable seat 20 with the fixed seat 10, so that the movable seat 20 and the fixed seat 10 remain fixed, and then the armrest panel 30 provides stable support for the user's arm. The locking member 40 comprises a locking end 41 and an operating end 42. The locking member 40 is equipped with The locking end 41 is then driven to move relative to the movable seat 20, and the operating end 42 is moved to drive the locking end 41 to move, so that the locking end 41 can move between the locking position combined with the positioning portion and the unlocking position disengaged from the positioning portion. When the locking end 41 is in the locking position combined with the positioning portion, the locking member 40 is clamped between the movable seat 20 and the fixed seat 10, so that the movable seat 20 and the fixed seat 10 remain relatively fixed. When the locking end 41 is in the unlocking position disengaged from the positioning portion, the locking end 41 of the locking member 40 is no longer combined with the fixed seat 10, so that the movable seat 20 has the freedom to move relative to the fixed seat 10 in the up and down directions. At this time, the movable seat 20 can be moved up and down to adjust the armrest panel 30 to a suitable height, and then the operating end 42 is used to drive the locking end 41 to move, so that the locking end 41 is combined with the positioning portion of the corresponding height. After the height of the armrest panel 30 is adjusted into place, the armrest panel 30 and the fixed seat 10 remain fixed, thereby providing support for the user's arm.

[0028] In the present invention, the locking member 40 is driven to move by the operating end 42, so that the locking end 41 on the locking member 40 can move between a locking position combined with the positioning portion and an unlocking position disengaged from the positioning portion. When the locking end 41 is in the locking position, the locking member 40 can limit the freedom of the movable seat 20 to move up and down relative to the fixed seat 10, so that the armrest panel 30 can stably support the user's arm. When it is necessary to adjust the height of the armrest panel 30, it is only necessary to move the operating end 42 to disengage the locking end 41 from the positioning portion. Since the movable seat 20 will not be blocked, the armrest panel 30 can be quickly moved to an appropriate position in the up and down directions. The locking end 41 is combined with the positioning portion at the corresponding position to quickly complete the adjustment of the height of the armrest panel 30, and the adjustment process is quick and convenient.

[0029] In a preferred embodiment, the fixed seat 10 and the movable seat 20 are mutually nested together. Both the fixed seat 10 and the movable seat 20 are hollow structures with a square cross-section. An installation cavity is formed inside the movable seat 20. The locking member 40 is installed on the movable seat 20 and is located in the installation cavity. The operating end 42 of the locking member 40 protrudes from the outer surface of the movable seat 20 and is located below the armrest panel 30. The fixed seat 10 and the movable seat 20 are mutually nested. The movable seat 20 can move up and down relative to the fixed seat 10 within a larger travel range, so that the armrest panel 30 has a larger range of lifting and lowering adjustment. The larger adjustment range can be applied to more usage scenarios and users of different body shapes. The locking member 40 is arranged inside the movable seat 20, making the entire structure more compact and conducive to the use of space. The locking member 40 is of an elongated structure. For example, the locking member 40 is in the shape of a rod. The operating end 42 and the locking end 41 are respectively located at the two ends of the locking member 40. The locking member 40 is rotatably connected to the movable seat 20, so that the locking member 40 forms a lever structure on the movable seat 20. Specifically, the locking member 40 is pivotally connected to the movable seat 20 through a rotating shaft 43. The rotating shaft 43 is located between the operating end 42 and the locking end 41. When the operating end 42 is pushed upward, it can drive the locking end 41 to move toward the middle of the installation cavity of the movable seat 20, thereby disengaging the locking end 41 from the positioning portion on the fixed seat 10. So that the locking end 41 moves to the unlocking position to unlock the movable seat 20 and the fixed seat 10; in some embodiments, the locking end 41 can be reset according to its own weight, so that the locking end 41 can be reset from the unlocking position to the locking position. When the height of the armrest panel 30 needs to be adjusted, the operating end 42 is pushed upward, the armrest panel 30 is adjusted to an appropriate height, and the external force applied to the operating end 42 is released. The locking end 41 can be reset according to its own weight, and it can be combined with the positioning part of the corresponding height on the fixed seat 10, so that the locking member 40 can re-lock the movable seat 20 and the fixed seat 10. In other embodiments, a damping structure can also be provided at the rotating shaft 43. When adjusting the height of the armrest panel 30, the operating end 42 is pushed upward, and the damping structure keeps the locking end 41 in the unlocking position. After the armrest panel 30 is adjusted to the right position, the operating end 42 is pushed downward, so that the locking end 41 is combined with the positioning part at the corresponding height position. In a preferred embodiment, the utility model has a spring 50 disposed between the locking member 40 and the movable seat 20, and the spring 50 is used to apply an elastic stress to the locking member 40 so that the locking end 41 of the locking member 40 always maintains a tendency to move toward the locking position. For example, the spring 50 can be disposed between the operating end 42 of the locking member 40 and the movable seat 20, and a downward elastic stress is applied to the operating end 42 by the spring 50, so that the operating end 42 always maintains a tendency to swing downward, and then the locking end 41 always maintains a tendency to swing toward the locking position.Of course, the spring 50 can be arranged between the locking end 41 and the movable seat 20, or the spring 50 can be arranged between other positions of the locking member 40 and the movable seat 20. In short, the elastic stress of the spring 50 is applied to the locking member 40, which can always keep the locking end 41 moving toward the locking position.

[0030] In order to facilitate the installation of the locking member 40 and the spring 50, the utility model is provided with a cover plate 60 on the top of the movable seat 20, and the cover plate 60 is detachably connected to the top of the movable seat 20 by screws or other fixing methods. The upper end of the spring 50 abuts on the cover plate 60, and the lower end abuts on the operating end 42. A downwardly concave mounting groove 23 is also provided on the top of the movable seat 20, and a protrusion 61 is protruding from the lower surface of the cover plate 60. The protrusion 61 is embedded in the opening of the mounting groove 23. The cover plate 60 is inserted into the mounting groove 23 to position the connection between the cover plate 60 and the movable seat 20. At the same time, the bottom surface of the protrusion 61 and the inner wall surface of the mounting groove 23 form an axial hole, and the rotating shaft 43 is connected in the axial hole. During assembly, the spring 50 is preset at the top of the movable seat 20, and the rotating shaft 43 is embedded in the mounting groove 23. Then, the cover plate 60 is placed on the top of the movable seat 20, and the cover plate 60 and the movable seat 20 are fixed by screws, so that the locking member 40 and the spring 50 are installed on the movable seat 20. The operating end 42 is formed by bending the top of the locking member 40 outward, so that the operating end 42 can be in a horizontal state or a substantially horizontal state after extending to the outside of the movable seat 20. When adjusting, the user can hold the edge of the armrest panel 30 with the palm of the hand while the finger moves the operating end 42 upward. In this way, the height of the armrest panel 30 can be adjusted by one hand. A through slot 24 for the operating end 42 to extend is provided between the cover plate 60 and the top of the movable seat 20.

[0031] In the present invention, the spring 50 can also be replaced by other elastic elements. For example, the elastic element can be a torsion spring installed on the rotating shaft 43, and the two ends of the torsion spring respectively press against the locking member 40 and the movable seat 20; the elastic element can also be an elastic rubber block.

[0032] In a preferred embodiment of the utility model, the fixed seat 10 is sleeved on the outside of the movable seat 20, the positioning portion is a card slot 11 provided on the fixed seat 10, the locking end 41 is formed by bending the lower end of the locking member 40 toward the portion of the fixed seat 10 where the card slot 11 is provided, and the movable seat 20 is provided with a through hole 22 for the locking end 41 to pass through. A decorative sleeve 14 is provided on the fixed seat 10 to prevent the multiple card slots 11 from being exposed and to improve the aesthetics of the entire armrest appearance.

[0033] Figure 2 , Figure 3 The use state of the utility model is shown. Figure 3In the state shown, the locking end 41 is clamped in one of the clamping slots 11, and is combined with the clamping slot 11, so that the locking member 40 locks the movable seat 20 and the fixed seat 10; when the height of the armrest panel 30 needs to be adjusted, as shown in FIG. Figure 2 As shown, the operating end 42 is pushed upward to make the locking end 41 swing toward the middle of the installation cavity, and the locking end 41 is disengaged from the card slot 11.

[0034] It should be pointed out that the positioning part of the utility model is not limited to the slot 11 provided on the fixed seat 10, and it can also be other structures that can be combined with the locking end 41. For example, the positioning part can be a convex tooth provided on the inner wall surface of the fixed seat 10, and a groove that cooperates with the convex tooth is provided at the lower end of the locking member 40 to form the locking end. The locking member 40 is not necessarily rotatably mounted on the movable seat 20 as described above, and it can also be mounted on the movable seat 20 in other movable ways. For example, the locking member 40 can be mounted on the movable seat 20 in a transversely movable manner. When adjusting, the operating end of the locking member 40 is pulled transversely so that the locking end 41 can move between a locked position combined with the positioning part and an unlocked position disengaged from the positioning part.

[0035] The inner wall of the fixed seat 10 is provided with a supporting rib 13 extending in the up-down direction. The outer surface of the movable seat 20 is in sliding contact with the supporting rib 13, which reduces the contact area between the movable seat 20 and the fixed seat 10, thereby reducing the mutual friction between the two.

[0036] The fixed seat 10 is provided with a guide slot 12 extending up and down, and the movable seat 20 is provided with a guide column 21 slidably embedded in the guide slot 12. The guide column 21 cooperates with the guide slot 12 to guide the up and down movement of the movable seat 20. At the same time, the two ends of the guide slot 12 are used to limit the stroke of the up and down movement of the guide column 21, thereby limiting the maximum displacement of the movable seat 20 relative to the fixed seat 10.

[0037] The seat of the utility model comprises the lifting and lowering adjustment mechanism of the armrests, and other structures of the seat are the same as those in the prior art and will not be described in detail here.

[0038] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. The lifting and adjusting mechanism of the armrest is characterized by: It includes a fixed seat, a movable seat, a locking piece, and an armrest panel; The armrest panel is fixedly connected to the top of the movable seat, and the movable seat is movably mounted on the fixed seat so that the movable seat can move relative to the fixed seat in the up and down direction, and the fixed seat is provided with a plurality of positioning parts arranged in the up and down direction; The locking member is mounted on the movable seat and comprises a locking end and an operating end. The operating end is used to drive the locking end to move so that the locking end can move between a locking position combined with the positioning portion and an unlocking position disengaged from the positioning portion.

2. The armrest lifting and adjusting mechanism according to claim 1, characterized in that: The fixed seat and the movable seat are sleeved together, a mounting cavity is formed inside the movable seat, a locking member is located inside the mounting cavity, and an operating end of the locking member protrudes from the outer surface of the movable seat and is located below the armrest panel.

3. The armrest lifting and adjusting mechanism according to claim 2, characterized in that: The locking piece is rod-shaped, with an operating end and a locking end respectively located at the two ends of the locking piece. The locking piece is pivotally connected to the movable seat through a rotating shaft located between the operating end and the locking end. When the operating end is pushed upward, it drives the locking end to move toward the middle of the installation cavity so that the locking end moves to the unlocking position.

4. The armrest lifting and adjusting mechanism according to claim 3, characterized in that: An elastic element is arranged between the locking element and the movable seat, and the elastic element is used to apply an elastic stress to the locking element so that the locking end of the locking element always maintains a tendency to move toward the locking position.

5. The armrest lifting and adjusting mechanism according to claim 4, characterized in that: The elastic element is a spring, and a cover plate is detachably fixedly connected to the top of the movable seat. The upper end of the spring abuts against the cover plate, and the lower end abuts against the operating end. An axial hole is formed between the cover plate and the movable seat, and the rotating shaft is connected to the axial hole. The operating end is formed by bending the top of the locking piece toward the outside, and a through groove is formed between the cover plate and the top of the movable seat for the operating end to pass through.

6. The armrest lifting and adjusting mechanism according to claim 5, characterized in that: The top of the movable seat is provided with a downwardly recessed mounting groove, the lower surface of the cover plate is provided with a convex block embedded in the opening of the mounting groove, and the shaft hole is surrounded by the bottom surface of the convex block and the inner wall surface of the mounting groove.

7. The armrest lifting and adjusting mechanism according to claim 3, characterized in that: The fixed seat sleeve is arranged on the outside of the movable seat, the positioning part is a slot arranged on the fixed seat, the locking end is formed by bending the lower end of the locking piece toward the part of the fixed seat where the slot is arranged, and the movable seat is provided with a through hole for the locking end to pass through.

8. The armrest lifting and adjusting mechanism according to claim 7, characterized in that: The inner wall of the fixed seat is provided with supporting convex ribs extending in the up-down direction, and the outer surface of the movable seat is in sliding contact with the supporting convex ribs.

9. The armrest lifting and adjusting mechanism according to claim 7, characterized in that: The fixed seat is provided with a guide slide groove extending up and down, and the movable seat is provided with a guide column slidably embedded in the guide slide groove.

10. A seat, characterized in that: A lifting and adjusting mechanism for an armrest comprising any one of claims 1 to 9.

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