Armrest adjusting mechanism and seat

Abstract

The utility model discloses an armrest adjusting mechanism and a seat, the armrest adjusting mechanism comprises an armrest, a connecting seat, a locking piece and an elastic piece; the handrail is in sliding fit with the connecting base so that the handrail can move relative to the connecting base in the front-back direction, and a plurality of clamping parts arranged in the front-back direction are arranged on the connecting base. The locking piece is installed on the handrail and comprises a locking end and an operating end opposite to the locking end, and the locking end is used for being combined with one clamping part to limit the freedom degree of the handrail moving in the front-back direction relative to the connecting base; the operation end is used for driving the locking end to move so that the locking end can move in the direction away from the connecting base to be separated from the clamping portion, and the elastic piece is used for applying elastic stress to the locking piece so that the locking end can be pushed in the direction close to the connecting base. According to the utility model, the adjusting process is time-saving and labor-saving, and especially when a user is in a sitting posture, the armrest can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, and particularly relates to an armrest adjusting mechanism and a seat. Background Art

[0002] Existing children's seats, gaming seats, etc. are all equipped with armrests for supporting the user's arms; the armrests of most seats are relatively fixed with the seat cushions and cannot be adjusted back and forth according to the different sitting postures of the users. When the users are in different sitting postures, the positions of their arms change, and it is difficult for the seat armrests in a fixed posture to provide better support for the users' arms. To improve the above defects of the existing technology, some current seats install the armrests movably on the brackets on the sides of the seat cushions, and the fixation of the armrests and the brackets is achieved through spring steel balls or similar locking mechanisms. When adjusting the front and back positions of the armrests, a relatively large force is required to move the armrests, and the adjustment process is not convenient. Especially for children's seats with enclosed armrests, since the two armrests are of an integrated structure, the left and right armrests are respectively fixed to the brackets on both sides of the seat cushion through spring steel balls. To move the armrests, it is necessary to move the left and right armrests simultaneously and overcome the damping forces of the spring steel balls on both sides. Since a relatively large force is required to adjust the armrests back and forth, the user cannot adjust the armrests when in a sitting posture, and the adjustment process is extremely inconvenient. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an armrest adjusting mechanism and a seat, which can facilitate the front and back adjustment of the armrests, and the adjustment process is time-saving and labor-saving.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An armrest adjusting mechanism, comprising an armrest, a connecting seat, a locking member, and an elastic member;

[0006] The armrest is slidably matched with the connecting seat so that the armrest can move relative to the connecting seat in the front and back directions, and a plurality of latching portions arranged in the front and back directions are provided on the connecting seat;

[0007] The locking member is installed on the armrest, and it includes a locking end and an operating end opposite to the locking end. The locking end is used to engage with one of the latching portions to limit the freedom of movement of the armrest relative to the connecting seat in the front and back directions; the operating end is used to drive the locking end to move so that the locking end moves away from the connecting seat to disengage from the latching portion, and the elastic member is used to apply an elastic stress to the locking member to push the locking end towards the connecting seat.

[0008] Preferably, the locking member is rod-shaped, the middle part of the locking member is pivotally connected to the armrest through a rotating shaft, and the locking end and the operating end are respectively located at both ends of the locking member.

[0009] Preferably, the armrest includes a top wall, the upper surface of the top wall forms a support surface, a sliding seat fixedly matched with the top wall is provided below the top wall, a sliding groove is formed between the sliding seat and the top wall, and the connecting seat is slidably installed in the sliding groove.

[0010] Preferably, the armrest also includes an inner side wall extending downward from the inner side edge of the top wall, the inner bottom of the sliding seat is provided with a supporting rib protruding toward the inner side wall of the armrest, and the slide groove is located between the supporting rib and the top wall of the armrest; the connecting seat includes a supporting wall located between the inner side wall and the supporting rib, and a sliding rib extending outward from the top of the supporting wall, the sliding rib overlaps the supporting rib so that the sliding rib can be slidably embedded in the slide groove, and the sliding seat is fixedly matched with the top wall in a detachable manner.

[0011] Preferably, a downwardly recessed mounting groove is provided on the upper surface of the sliding seat, the locking piece is embedded in the mounting groove, the middle part of the locking piece is pivotally connected to the sliding seat through a rotating shaft, the locking end protrudes from the inner side of the mounting groove to match the locking portion, and the operating end protrudes from the outer side of the mounting groove so that the operating end is placed outside the side of the armrest.

[0012] Preferably, the inner wall plate of the mounting groove is formed by extending upward from the outer edge of the upper surface of the supporting rib, and a first notch for the locking end to pass through is provided on the inner wall plate, and a plurality of locking portions are provided on the outer surface of the sliding rib so that the plurality of locking portions are arranged opposite to the inner wall plate of the mounting groove.

[0013] Preferably, the locking end is a locking protrusion arranged at one end of the locking member, and the locking portion is a locking groove provided on the outer side surface of the sliding rib for the locking protrusion to be embedded in.

[0014] Preferably, the armrest further comprises an outer wall extending downward from the outer side of the top wall, the outer wall is wrapped around the outer side of the outer wall plate of the mounting groove, a second notch is arranged on the outer wall plate of the mounting groove, an avoidance groove is arranged on the outer wall directly opposite to the second notch, and the operating end is an operating button passing through the second notch and the avoidance groove;

[0015] And / or, the middle of the installation groove has a necking portion, the necking portion is provided with an axial hole for the rotating shaft to be embedded, and the parts of the installation groove located on both sides of the necking portion form a space suitable for the locking member to swing therein.

[0016] Preferably, the elastic member is arranged between a side of the locking member facing away from the operating end and the sliding seat.

[0017] The seat comprises two of the above-mentioned armrest adjustment mechanisms, and the armrests in the two armrest adjustment mechanisms are fixed together or formed in one piece.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the present utility model, a locking member is provided between the armrest and the connecting seat. By means of the cooperation between the locking end on the locking member and the clamping portion on the connecting seat, the freedom degree of the forward and backward movement of the armrest relative to the connecting seat is limited, so that the armrest and the connecting seat are kept relatively fixed, ensuring that the armrest can provide support for the user's arm. When it is necessary to adjust the forward and backward position of the armrest, the operating end of the locking member is operated to disengage the locking end from the clamping portion. At this time, the freedom degree of the forward and backward movement of the armrest is no longer limited, and the armrest can be easily moved forward and backward. After the armrest is adjusted to the corresponding position, the elastic member pushes the locking member to combine the locking end with the clamping portion at the corresponding position, locking the armrest again. The adjustment process is time-saving and labor-saving. Especially when the user is in a sitting position, the armrest can be conveniently adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 A sectional view of the present utility model;

[0022] Figure 3 is Figure 1 an installation schematic diagram of the sliding seat and the locking member in

[0023] Figure 4 is Figure 1 a schematic structural diagram of the connecting seat in

[0024] Figure 5 a schematic diagram of a use state of the present utility model;

[0025] Figure 6 a schematic diagram of another use state of the present utility model.

[0026] Wherein: 10, armrest; 11, top wall; 12, inner side wall; 13, outer side wall; 131, avoidance groove; 20, connecting seat; 21, support wall; 22, sliding rib; 221, outer side surface; 23, clamping groove; 30, sliding seat; 31, installation groove; 311, inner wall plate; 312, outer wall plate; 32, first notch; 33, second notch; 34, shaft hole; 35, support rib; 40, locking member; 41, locking lug; 42, operation button; 43, rotating shaft; 50, elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of non-conflict, any combination can be formed between the following-described embodiments or technical features 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, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected", "communicated", "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] Such as Figure 1 、 2As shown in Figures 3, 4, 5, and 6, an armrest adjustment mechanism of the present utility model includes an armrest 10, a connecting seat 20, a locking member 40, and an elastic member 50. The connecting seat 20 can be fixed to a fixed backrest of the seat, or the seat cushion of the seat, or other structures on the seat that are fixedly engaged with the seat body. The armrest 10 is slidably engaged with the connecting seat 20, enabling the armrest 10 to slide relative to the connecting seat 20 in the front-rear direction. A plurality of positioning slots 23 are provided on the connecting seat 20, and the plurality of positioning slots 23 are arranged in the front-rear direction. The locking member 40 is installed on the armrest 10 and includes a locking end and an operating end opposite to the locking end. The locking end is a locking protrusion 41, and the locking protrusion 41 is inserted into one of the positioning slots 23. By using the clamping fit between the locking protrusion 41 and the positioning slot 23, the locking member 40 can lock the freedom of movement of the armrest 10 relative to the connecting seat 20 in the front-rear direction, thereby locking the armrest 10 and the connecting seat 20. Performing relevant operations on the operating end can enable the locking member 40 to move relative to the armrest 10, and then the operating end drives the locking member 40 to move, causing the locking protrusion 41 to move away from the connecting seat 20. The locking protrusion 41 can be disengaged from the positioning slot 23. At this time, the locking protrusion 41 no longer cooperates with the positioning slot 23, that is, it no longer limits the freedom of movement of the armrest 10 in the front-rear direction, and the armrest 10 can be moved in the front-rear direction to adjust the front-rear position of the armrest 10. The elastic member 50 is used to apply an elastic stress to the locking member 40 to push the locking protrusion 41 towards the connecting seat 20. By using the elastic stress provided by the elastic member 50, the locking protrusion 41 is stably inserted into the positioning slot 23 to prevent the locking protrusion 41 from being disengaged from the positioning slot 23 when the locking member 40 is not subjected to an external force.

[0031] It should be noted that the locking end on the locking member 40 is not limited to the above-mentioned locking protrusion 41. It can also be a slot provided on the locking member 40, or a positioning protrusion matching the slot can be provided on the connecting seat 20. Using the positioning protrusion as the positioning portion provided on the connecting seat 20, the locking end of the locking member 40 is engaged with the positioning portion on the connecting seat 20, so as to lock the freedom of movement of the armrest 10 relative to the connecting seat 20 in the front-rear direction by the locking member 40. And through relevant operations on the operating end of the locking member 40, the locking end on the locking member 40 can be disengaged from the positioning portion on the connecting seat 20, so that the armrest 10 can be moved back and forth.

[0032] In the present utility model, a locking member 40 is provided between the armrest 10 and the connecting seat 20. By means of the cooperation between the locking end on the locking member 40 and the engaging portion on the connecting seat 20, the degree of freedom of the forward and backward movement of the armrest 10 relative to the connecting seat 20 is limited, so that the armrest 10 and the connecting seat 20 are kept relatively fixed, ensuring that the armrest 10 can provide support for the user's arm. When it is necessary to adjust the front and rear positions of the armrest 10, the operating end of the locking member 40 is operated to disengage the locking end from the engaging portion. At this time, the degree of freedom of the forward and backward movement of the armrest 10 is no longer limited, and the armrest 10 can be easily moved back and forth. After the armrest 10 is adjusted to the corresponding position, the elastic member 50 pushes the locking member 40 to combine the locking end with the engaging portion at the corresponding position, locking the armrest 10 again. The adjustment process is time-saving and labor-saving. Especially when the user is in a sitting position, the armrest 10 can be conveniently adjusted.

[0033] In the present utility model, the locking member 40 is configured in a rod shape. The middle part of the locking member 40 is pivotally connected to the armrest 10 through a rotating shaft 43, enabling the locking member 40 to swing relative to the armrest 10. The locking end and the operating end are respectively located at both ends of the locking member 40. When the locking member 40 swings, the locking end on the locking member 40 can move between a position away from the connecting seat 20 and a position close to the connecting seat 20, thereby separating the locking end from the engaging portion or combining the locking end with the engaging portion. In other embodiments, the locking member 40 can also be configured to be able to slide linearly between two positions relative to the armrest 10, so that the locking end on the locking member 40 approaches or moves away from the connecting seat 20.

[0034] The above-mentioned armrest 10 includes a top wall 11, the upper surface of the top wall 11 forms a support surface for supporting the user's arm, a sliding seat 30 is arranged below the top wall 11, the sliding seat 30 is fixedly matched with the top wall 11, a chute is formed between the sliding seat 30 and the top wall 11, and the above-mentioned connecting seat 20 is slidably installed in the chute so that the assembly composed of the sliding seat 30 and the armrest 10 can slide relative to the connecting seat 20 in the front-rear direction. The armrest 10 further includes an inner wall 12 extending downward from the inner side edge of the top wall 11. A support rib 35 protruding toward the inner wall 12 of the armrest 10 is arranged at the inner bottom of the sliding seat 30. The support rib 35 is arranged at a certain distance from the lower surface of the top wall 11, and then the chute is located between the support rib 35 and the top wall 11. The connecting seat 20 includes a support wall 21 located between the inner wall 12 and the support rib 35, and a sliding rib 22 extending outward from the top of the support wall 21. The support wall 21 is placed between the support rib 35 and the inner wall 12 so that the connecting seat 20 can be stably matched with the armrest 10. The part of the support wall 21 protruding from the lower surface of the support rib 35 is used to connect with the fixed backrest of the seat, the seat cushion of the seat or other structures fixedly matched with the seat body on the seat to keep the connecting seat 20 fixed. The sliding rib 22 is lapped on the support rib 35 so that the sliding rib 22 is slidably embedded in the chute. The sliding seat 30 is fixedly connected to the lower part of the top wall 11 in a detachable manner. Specifically, the sliding seat 30 can be fixedly matched with the top wall 11 by means of bolt connection or snap connection. During assembly, the armrest 10 is placed on the connecting seat 20 so that the support wall 21 abuts against the outer side of the inner wall 12, and the top of the connecting seat 20 abuts against the lower surface of the top wall 11. Then, the sliding seat 30 is placed below the top wall 11 from bottom to top, and the sliding seat 30 is fixed to the top wall 11 so that the sliding rib 22 of the connecting seat 20 and the upper part of the support wall 21 are placed between the sliding seat 30 and the armrest 10. In this way, the assembly of the entire armrest adjustment mechanism is facilitated, and the disconnection between the connecting seat 20 and the armrest 10 is avoided.

[0035] The upper surface of the sliding seat 30 is provided with a downwardly recessed mounting groove 31, and the locking member 40 is embedded in the mounting groove 31. The middle part of the locking member 40 is pivotally connected to the sliding seat 30 through a rotating shaft 43, so that the locking member 40, the sliding seat 30 and the armrest 10 are pivotally matched with the assembly. The locking end protrudes from the inner side of the mounting groove 31 to match the locking portion, and the operating end protrudes from the outer side of the mounting groove 31 so that the operating end is placed outside the side of the armrest 10. The operating end can be pressed from the outside of the side of the armrest 10 to swing outward to move away from the connecting seat 20. The mounting groove 31 is provided to accommodate the locking member 40, reducing the space occupied by the entire structure in the height direction, so that the sliding seat 30 and the locking member 40 can be accommodated inside the armrest 10. When adjusting the front and rear position of the armrest 10, the user can press the operating end on the outside of the side of the armrest 10 with a finger, and then move the armrest 10 forward or backward to simply and quickly adjust the front and rear position of the armrest 10. The inner wall plate 311 of the mounting groove 31 is formed by extending upward from the outer edge of the upper surface of the supporting rib 35, and a first notch 32 for the locking end to pass through is provided on the inner wall plate 311, and a plurality of latching portions are provided on the outer side surface 221 of the sliding rib 22, so that the plurality of latching portions can be arranged opposite to the inner wall plate 311 of the mounting groove 31, so that under the elastic stress of the elastic member 50, the locking end can protrude from the inner wall plate 311 of the mounting groove 31 through the first notch 32, so that the locking end can be combined with the latching portion opposite to the first notch 32.

[0036] The armrest 10 also includes an outer wall 13 extending downward from the outer edge of the top wall 11, and the outer wall 13 is wrapped around the outer side of the outer wall plate 312 of the mounting groove 31. A second notch 33 is provided on the outer wall plate 312 of the mounting groove 31, and an avoidance groove 131 is provided on the outer wall 13 and is opposite to the second notch 33. The operating end is an operating button 42 that passes through the second notch 33 and the avoidance groove 131.

[0037] In order to facilitate the installation of the locking piece 40, a necking portion is provided in the middle of the installation groove 31. The inner width of the necking portion is smaller than the inner width of other positions of the installation groove 31. An axial hole 34 for the rotating shaft 43 to be embedded is provided on the necking portion. The rotating shaft 43 rotates in the axial hole 34. The width of the parts of the installation groove 31 located on both sides of the necking portion is relatively large to avoid the swing of the locking piece 40, thereby forming a space suitable for the locking piece 40 to swing therein.

[0038] The elastic member 50 is disposed between the side of the locking member 40 away from the operating end and the sliding seat 30 . The elastic member 50 may be a spring, an elastic rubber block, or the like.

[0039] The seat of the present utility model includes the above-mentioned armrest adjustment mechanism. Specifically, the seat may include two such armrest adjustment mechanisms. The armrests 10 in the two armrest adjustment mechanisms may be integrally formed, or the armrests 10 in the two armrest adjustment mechanisms may be fixedly connected together by means of assembly. The other structures of the seat are the same as those in the prior art and will not be described in detail here.

[0040] Finally, it should be noted that the above-mentioned embodiments are only optional embodiment modes of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present utility model belong to the scope of protection required by the present utility model.

Claims

1. Armrest adjustment mechanism, characterized in that, It includes an armrest, a connecting seat, a locking piece, and an elastic piece; The armrest is slidably matched with the connecting seat so that the armrest can move relative to the connecting seat in the front-to-back direction, and the connecting seat is provided with a plurality of latching parts arranged in the front-to-back direction; The locking member is mounted on the armrest, and includes a locking end and an operating end opposite to the locking end, wherein the locking end is used to be combined with one of the locking portions to limit the freedom of movement of the armrest in the front-rear direction relative to the connecting seat; The operating end is used to drive the locking end to move away from the connecting seat to disengage from the locking portion, and the elastic member is used to apply elastic stress to the locking member to push the locking end toward the connecting seat.

2. The armrest adjusting mechanism according to claim 1, characterized in that, The locking piece is in the shape of a rod, the middle part of which is pivotally connected with the armrest through a rotating shaft, and the locking end and the operating end are respectively located at two ends of the locking piece.

3. The armrest adjusting mechanism according to claim 2, characterized in that, The armrest comprises a top wall, the upper surface of which forms a supporting surface, a sliding seat fixedly matched with the top wall is arranged below the top wall, a sliding groove is formed between the sliding seat and the top wall, and the connecting seat is slidably installed in the sliding groove.

4. The armrest adjustment mechanism according to claim 3, characterized in that, The armrest also includes an inner side wall extending downward from the inner side edge of the top wall, and the inner bottom of the sliding seat is provided with a supporting rib protruding toward the inner side wall of the armrest, and the slide groove is located between the supporting rib and the top wall of the armrest; the connecting seat includes a supporting wall located between the inner side wall and the supporting rib, and a sliding rib extending outward from the top of the supporting wall, the sliding rib overlaps the supporting rib so that the sliding rib can be slidably embedded in the slide groove, and the sliding seat is fixedly matched with the top wall in a detachable manner.

5. The armrest adjusting mechanism according to claim 4, characterized in that A downwardly recessed mounting groove is provided on the upper surface of the sliding seat, a locking piece is embedded in the mounting groove, a middle portion of the locking piece is pivotally connected to the sliding seat via a rotating shaft, a locking end protrudes from the inner side of the mounting groove to match the locking portion, and an operating end protrudes from the outer side of the mounting groove so that the operating end is placed outside the side of the armrest.

6. The armrest adjusting mechanism according to claim 5, wherein The inner wall plate of the mounting groove is formed by extending upward from the outer edge of the upper surface of the supporting rib, and a first notch for the locking end to pass through is provided on the inner wall plate, and a plurality of latching portions are arranged on the outer surface of the sliding rib so that the plurality of latching portions are arranged opposite to the inner wall plate of the mounting groove.

7. The armrest adjusting mechanism according to claim 6, wherein The locking end is a locking protrusion arranged at one end of the locking piece, and the locking portion is a locking groove arranged on the outer side of the sliding convex rib for the locking protrusion to be embedded.

8. The armrest adjusting mechanism according to claim 5, characterized in that, The armrest further includes an outer wall extending downward from the outer side of the top wall, the outer wall is wrapped around the outer side of the outer wall plate of the mounting groove, a second notch is provided on the outer wall plate of the mounting groove, an avoidance groove is provided on the outer wall and is arranged opposite to the second notch, and the operating end is an operating button passing through the second notch and the avoidance groove; And / or, the middle of the installation groove has a necking portion, the necking portion is provided with an axial hole for the rotating shaft to be embedded, and the parts of the installation groove located on both sides of the necking portion form a space suitable for the locking member to swing therein.

9. The armrest adjusting mechanism according to claim 5, characterized in that, The elastic member is arranged between a side of the locking member facing away from the operating end and the sliding seat.

10. Seat, characterized in that, The invention comprises two armrest adjustment mechanisms as described in any one of claims 1 to 9, wherein the armrests in the two armrest adjustment mechanisms are fixed together or formed in one piece.

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