Seat and armrest adjusting mechanism thereof

Abstract

The utility model relates to the field of seats, in particular to a seat and an armrest adjusting mechanism thereof. A handrail adjusting mechanism comprises a handrail pipe body and a handrail arranged at the upper end of the handrail pipe body. The handrail comprises a base, a first sliding adjusting block arranged in the base in a sliding mode, a second sliding adjusting block fixedly arranged on the base and a handrail body arranged on the base. A rotary adjusting block is fixedly connected to the upper portion of the armrest pipe body and installed in a first sliding adjusting block, and the first sliding adjusting block can be circumferentially adjusted and positioned relative to the rotary adjusting block. The second sliding adjusting block is arranged on the base, and the armrest body can slide back and forth relative to the first sliding adjusting block; the armrest body can move left and right relative to the second sliding adjusting block. The armrest can be adjusted in a front-back, left-right and rotating mode, the adjusting functions are more, the range is wider, and therefore the armrest is more suitable for users with different requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially to a seat and handrail adjusting mechanism. BACKGROUND

[0002] The existing seat can be divided into three categories, including the seat without handrail, the seat with fixed handrail and the seat with adjustable handrail, wherein the crowd and environment applied to the seat without handrail and the seat with fixed handrail are different, and the seat with adjustable handrail is applied to more crowd and more occasions. For example, the Chinese patent with the application number 201720701785.4 discloses a chair with adjustable handrail, which comprises a chair leg, a seat fixed on the chair leg, a seat cushion and a backrest; the seat is further provided with a handrail, and the handrail comprises a handrail frame, the handrail frame is provided with a handrail cover which can move on the handrail frame; the handrail cover is provided with a moving seat, and the moving seat is fixed with the handrail frame; the moving seat comprises a seat body, the seat body is provided with a gear, the handrail cover is provided with a gear rack which is engaged with the gear, the seat body is further provided with a clamping tooth, and the handrail cover is provided with an elastic button, and the inner side of the elastic button is clamped with the clamping tooth. However, the handrail is not only complex in structure, but also can only realize the adjustment of the handrail in front and back and left and right. SUMMARY

[0003] In order to solve the above problems, the first purpose of the utility model is to provide a handrail adjusting mechanism, the handrail can realize the adjustment of front and back, left and right and rotation, the adjusting function is more, the range is wider, and thus the handrail is more suitable for different users.

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

[0005] A handrail adjusting mechanism, comprising a handrail pipe body and a handrail arranged on the upper end of the handrail pipe body; the handrail comprises a base, a first sliding adjusting block slidingly arranged in the base, a second sliding adjusting block fixedly arranged on the base and a handrail body arranged on the base; a rotating adjusting block is fixedly connected to the upper end of the handrail pipe body, the rotating adjusting block is installed in the first sliding adjusting block in the base, the first sliding adjusting block can be adjusted and positioned in the circumferential direction relative to the rotating adjusting block; the base, the second sliding adjusting block on the base and the handrail body can slide forward and backward relative to the first sliding adjusting block; and the handrail body can move left and right relative to the second sliding adjusting block.

[0006] The utility model adopts the above technical scheme, and the technical scheme relates to a handrail adjusting mechanism, the upper end of the handrail pipe body in the handrail adjusting mechanism is fixedly connected with a rotating adjusting block, the rotating adjusting block is installed in the first sliding adjusting block in the base, since the first sliding adjusting block can be adjusted and positioned in the circumferential direction relative to the rotating adjusting block, the rotating adjustment of the handrail can be realized, that is, the adjustment of the direction of the handrail can be realized.

[0007] Further, the first sliding adjustment block is slidably arranged inside the base, so that the base and the second sliding adjustment block and the handrail body thereon can slide forward and backward relative to the first sliding adjustment block, that is, the handrail can be adjusted forward and backward.

[0008] Finally, the second sliding adjustment block is fixed on the base, and the handrail body can move left and right relative to the second sliding adjustment block, that is, the handrail can be adjusted left and right.

[0009] Through the above scheme, the handrail can be adjusted forward, backward, left, right and rotationally, the adjustment function is more, the range is wider, so as to be more suitable for different needs of users.

[0010] In a specific embodiment, the first sliding adjustment block is internally provided with a rotation chamber, and a through hole at the center of the bottom of the rotation chamber; the rotation adjustment block is inside the rotation chamber, and the first connecting shaft of the handrail pipe body passes through the through hole; a plurality of positioning grooves are arranged on the front and rear ends of the rotation adjustment block in the left and right directions, and an elastic clamping head is arranged on the rotation chamber and clamped into any one of the positioning grooves to realize positioning. In this scheme, the rotation adjustment block is fixedly arranged on the handrail pipe body, and rotating the handrail will make the first sliding adjustment block rotate by a certain angle relative to the rotation adjustment block, so that the handrail can be rotationally adjusted and positioned.

[0011] Further, the front and rear side walls of the rotation chamber are provided with openings, the clamping step end of the elastic clamping head passes through the openings and is inside the rotation chamber, the root of the elastic clamping head is provided with two connecting arms which are integrally connected to the first sliding adjustment block, and a gap is left between the two connecting arms and the adjacent side wall. In this scheme, the two connecting arms of the elastic clamping head provide elasticity for the elastic clamping head, and the gap left at the rear side of the two connecting arms provides space for deformation of the elastic clamping head during adjustment.

[0012] In a further scheme, an arc-shaped limiting groove is formed on the side surface of the rotation adjustment block, and a limiting block adapted to the arc-shaped limiting groove is formed on the left and right side walls of the rotation chamber; when the first sliding adjustment block rotates relative to the rotation adjustment block, the limiting block moves in the arc-shaped limiting groove. In this scheme, the range that can be adjusted by the circumferential rotation is limited based on the movement of the limiting block relative to the arc-shaped limiting groove.

[0013] As a preferred, the base is internally provided with a first sliding groove in the front and rear directions, and a first strip-shaped hole is arranged at the bottom in the direction of the first sliding groove; the first sliding adjustment block is embedded inside the first sliding groove, and the first connecting shaft of the rotation adjustment block passes through the first strip-shaped hole. In this way, the first sliding adjustment block can move along the first sliding groove, and at the same time, the first connecting shaft also moves in the first strip-shaped hole.

[0014] Further, a plurality of front-to-back direction arranged guide grooves are arranged on the bottom of the first sliding groove, and a plurality of guide protrusions embedded in the guide grooves are arranged on the bottom of the first sliding adjusting block. The cooperation of the guide protrusions and the guide grooves can make the first sliding adjusting block slide more smoothly relative to the first sliding groove.

[0015] As preferred, a left-to-right direction arranged second sliding groove and a second strip-shaped hole arranged on the bottom of the second sliding groove are arranged in the armrest body; the second sliding adjusting block is connected to the upper end of the base through a second connecting shaft; the second sliding adjusting block is in the second sliding groove in the armrest body, and the second connecting shaft passes through the second strip-shaped hole. When the left-to-right adjustment is performed, the second sliding adjusting block slides left-to-right along the second sliding groove, and the second connecting shaft slides left-to-right along the second strip-shaped hole.

[0016] Further, the front and rear ends of the armrest body are both provided with the second sliding groove and the second strip-shaped hole, and the front and rear ends of the base are both connected with the second sliding adjusting block through the second connecting shaft.

[0017] In a specific scheme, the armrest body comprises a base, a cover fixed to the upper end of the base, a retaining ring arranged circumferentially around the base, and a flexible support surface layer fixed to the upper end of the cover and the retaining ring. The second sliding groove and the second strip-shaped hole are arranged on the base, and the cover is closed on the upper end of the base, so as to close the upper end of the base and hide the related structure for left-to-right sliding, avoiding interference during the left-to-right sliding.

[0018] The second purpose of the utility model is to provide a seat, characterized in that: comprising the armrest adjusting mechanism as described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the armrest.

[0020] Figure 2 It is a schematic view of the armrest body separated from the armrest pipe body and the base.

[0021] Figure 3 It is a schematic view of the left-to-right sliding structure in the armrest body.

[0022] Figure 4 It is an exploded view of the armrest.

[0023] Figure 5 It is a schematic view of the rotating adjusting block installed in the first sliding adjusting block.

[0024] Figure 6 It is a schematic view of the first sliding adjusting block. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature with respect to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature with respect to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] Example 1:

[0031] As Figures 1-6 shown, the embodiment relates to a handrail adjusting mechanism, which comprises a handrail pipe body 1 and a handrail 2 arranged at the upper end of the handrail pipe body 1. The handrail 2 comprises a base 21, a first sliding adjusting block 22 slidingly arranged in the base 21, a second sliding adjusting block 23 fixedly arranged on the base 21, and a handrail body arranged on the base 21. The upper end of the handrail pipe body 1 is fixedly connected with a rotating adjusting block 24, which is installed in the first sliding adjusting block 22. The first sliding adjusting block 22 can be circumferentially adjusted and positioned relative to the rotating adjusting block 24. The base 21, the second sliding adjusting block 23 and the handrail body thereon can slide forward and backward relative to the first sliding adjusting block 22. The handrail body can move left and right relative to the second sliding adjusting block 23.

[0032] In the handrail adjusting mechanism, the upper end of the handrail pipe body 1 is fixedly connected with the rotating adjusting block 24, which is installed in the first sliding adjusting block 22 in the base 21. Since the first sliding adjusting block 22 can be circumferentially adjusted and positioned relative to the rotating adjusting block 24, the rotating adjustment of the handrail 2 can be realized, that is, the orientation adjustment of the handrail 2 can be realized. Further, the first sliding adjusting block 22 is slidingly arranged in the base 21, so that the base 21, the second sliding adjusting block 23 and the handrail body thereon can slide forward and backward relative to the first sliding adjusting block 22, that is, the handrail 2 can be adjusted forward and backward. Finally, the second sliding adjusting block 23 is fixedly arranged on the base 21, and the handrail body can move left and right relative to the second sliding adjusting block 23, that is, the handrail 2 can be adjusted left and right. Through the above scheme, the handrail 2 can be adjusted forward, backward, left, right and rotationally, and has more adjustment functions and a wider range, thereby being more suitable for users with different needs.

[0033] In Figure 5 and 6 the specific embodiments, a rotating cavity 220 is arranged in the first sliding adjusting block 22, and a through hole 221 is arranged at the center of the bottom of the rotating cavity 220. The rotating adjusting block 24 is arranged in the rotating cavity 220, and a first connecting shaft of the rotating adjusting block 24 passes through the through hole 221. A plurality of positioning grooves 241 are arranged on the front and rear ends of the rotating adjusting block 24 in the left and right directions, and an elastic clamping head 222 is arranged on the rotating cavity 220 and clamped into any one of the positioning grooves 241 to realize positioning. In the scheme, the rotating adjusting block 24 is fixedly arranged on the handrail pipe body 1, and rotating the handrail 2 can make the first sliding adjusting block 22 rotate by a certain angle relative to the rotating adjusting block 24, so that the handrail 2 can be rotationally adjusted and positioned.

[0034] In addition, the front and rear side walls of the rotating chamber 220 are provided with openings 223, and the clamping step end of the elastic clamping head 222 passes through the openings 223 and is located in the rotating chamber 220. The root of the elastic clamping head 222 is provided with two connecting arms 224 which are integrally connected to the first sliding adjusting block 22, and a gap is left between the two connecting arms 224 and the adjacent side wall. In this scheme, the two connecting arms 224 of the elastic clamping head 222 provide elasticity for the elastic clamping head 222, and the gap left on the rear side of the two connecting arms 224 provides space for the deformation of the elastic clamping head 222 during adjustment. In a further scheme, the side surface of the rotating adjusting block 24 is provided with an arc-shaped limiting groove 242, and the left and right side walls of the rotating chamber 220 are provided with limiting blocks 225 which are adapted to the arc-shaped limiting groove 242. When the first sliding adjusting block 22 rotates relative to the rotating adjusting block 24, the limiting blocks 225 move in the arc-shaped limiting groove 242. In this scheme, the range of circumferential rotation that can be adjusted is limited based on the movement of the limiting blocks 225 relative to the arc-shaped limiting groove 242.

[0035] As shown in Figure 4 The inside of the base 21 is provided with a first sliding groove 211 in the front-rear direction, and a first slot 212 is provided at the bottom along the direction of the first sliding groove 211. The first sliding adjusting block 22 is embedded in the first sliding groove 211, and the rotating adjusting block 24 and the first connecting shaft 243 of the handrail pipe body 1 pass through the first slot 212. In this way, the first sliding adjusting block 22 can move along the first sliding groove 211, and the first connecting shaft 243 also moves in the first slot 212. Further, the bottom of the first sliding groove 211 is provided with a plurality of guide grooves 213 arranged in the front-rear direction, and the bottom of the first sliding adjusting block 22 is provided with a plurality of guide protrusions 226 embedded in the guide grooves 213. The cooperation of the guide protrusions 226 and the guide grooves 213 can make the first sliding adjusting block 22 slide more smoothly relative to the first sliding groove 211.

[0036] As shown in Figure 3 and 4 The handrail body is provided with a second sliding groove 251 arranged in the left-right direction, and a second slot 252 is provided at the bottom along the direction of the second sliding groove 251. The second sliding adjusting block 23 is connected to the upper end of the base 21 through a second connecting shaft 231. The second sliding adjusting block 23 is located in the second sliding groove 251 in the handrail body, and the second connecting shaft 231 passes through the second slot 252. In this scheme, when left-right adjustment is performed, the second sliding adjusting block 23 slides left and right along the second sliding groove 251, and the second connecting shaft 231 slides left and right along the second slot 252. Further, the front and rear ends of the handrail body are provided with the second sliding groove 251 and the second slot 252, and the front and rear ends of the base 21 are connected with the second sliding adjusting block 23 through the second connecting shaft 231.

[0037] In the specific scheme as shown in Figure 3 and 4 In the specific scheme as shown in the drawings, the armrest body comprises a base 25, a cover 26 fixed on the upper end of the base 25, a retaining ring 27 arranged circumferentially around the base 25, and a flexible support surface layer 28 fixed on the upper end of the cover 26 and the retaining ring 27. The second sliding groove 251 and the second slot 252 are arranged on the base 25, and the cover 26 is closed on the upper end of the base 25, so that the upper end of the base 25 can be closed, and the relevant structure for left and right sliding can be hidden and stored, avoiding interference during left and right sliding.

[0038] Embodiment 2:

[0039] The second purpose of the utility model is to provide a seat, characterized in that it comprises the armrest adjusting mechanism as described above.

[0040] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 utility model. In the present specification, 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.

[0041] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model without departing from the principles and purposes of the utility model.

Claims

1. A handrail adjusting mechanism, comprising a handrail tube (1) and a handrail (2) arranged on the upper end of the handrail tube (1); characterized in that: The handrail (2) comprises a base (21), a first sliding adjusting block (22) slidingly arranged in the base (21), a second sliding adjusting block (23) fixedly arranged on the base (21), and a handrail body arranged on the base (21); the upper portion of the handrail tube body (1) is fixedly connected with a rotating adjusting block (24), the rotating adjusting block (24) is arranged in the first sliding adjusting block (22), the first sliding adjusting block (22) can be adjusted and positioned in the circumferential direction relative to the rotating adjusting block (24); the base (21), the second sliding adjusting block (23) and the handrail body can slide forward and backward relative to the first sliding adjusting block (22); and the handrail body can move leftward and rightward relative to the second sliding adjusting block (23).

2. A handrail adjustment mechanism according to claim 1, characterised in that: The first sliding adjusting block (22) is internally provided with a rotating cavity (220) and a through hole (221) at the center of the bottom of the rotating cavity (220); the rotating adjusting block (24) is arranged in the rotating cavity (220), and the first connecting shaft (243) of the handrail tube body (1) penetrates through the through hole (221); a plurality of positioning grooves (241) are arranged on the front end and the rear end of the rotating adjusting block (24) in the left-right direction, and an elastic clamping head (222) is arranged on the rotating cavity (220), the elastic clamping head (222) is clamped into any one of the positioning grooves (241) to realize positioning.

3. A mechanism according to claim 2, wherein: An opening (223) is formed on the front and rear sidewalls of the rotating cavity (220), the clamping step end of the elastic clamping head (222) penetrates through the opening (223) and is arranged in the rotating cavity (220), the root of the elastic clamping head (222) is provided with two connecting arms (224) integrally connected to the first sliding adjusting block (22), and a gap is left between the two connecting arms (224) and the adjacent sidewall.

4. A handrail adjustment mechanism according to claim 2, wherein: An arc-shaped limiting groove (242) is formed on the side surface of the rotating adjusting block (24), and a limiting block (225) matched with the arc-shaped limiting groove (242) is formed on the left and right sidewalls of the rotating cavity (220); when the first sliding adjusting block (22) rotates relative to the rotating adjusting block (24), the limiting block (225) moves in the arc-shaped limiting groove (242).

5. A handrail adjustment mechanism according to claim 1, wherein: The base (21) is internally provided with a first sliding groove (211) in the front and rear directions, and a first strip-shaped hole (212) arranged on the bottom in the direction of the first sliding groove (211); the first sliding adjusting block (22) is embedded in the first sliding groove (211), and the first connecting shaft (243) of the handrail tube body (1) penetrates through the first strip-shaped hole (212).

6. A mechanism according to claim 5, wherein: A plurality of guide grooves (213) arranged in the front and rear directions are arranged on the bottom of the first sliding groove (211), and a plurality of guide protrusions (226) embedded in the guide grooves (213) are arranged on the bottom of the first sliding adjusting block (22).

7. A handrail adjustment mechanism according to claim 1, wherein: The handrail body is provided with a left-right direction arranged second sliding groove (251), and a second strip hole (252) arranged at the bottom of the second sliding groove (251); the second sliding adjusting block (23) is connected to the upper end of the base (21) through a second connecting shaft (231); the second sliding adjusting block (23) is in the second sliding groove (251) in the handrail body, and the second connecting shaft (231) passes through the second strip hole (252).

8. A mechanism according to claim 7, wherein: The front and rear ends of the handrail body are provided with the second sliding groove (251) and the second strip hole (252), and the front and rear ends of the base (21) are connected with the second sliding adjusting block (23) through the second connecting shaft (231).

9. A handrail adjustment mechanism according to claim 7, wherein: The handrail body comprises a base (25), a cover (26) fixed to the upper end of the base (25), a retaining ring (27) arranged circumferentially around the base (25), and a flexible supporting surface layer (28) fixed to the upper end of the cover (26) and the retaining ring (27); the second sliding groove (251) and the second strip hole (252) are arranged on the base (25), and the cover (26) is closed and covered on the upper end of the base (25).

10. A seat, characterized by: The handrail adjusting mechanism comprises the handrail adjusting mechanism according to any one of claims 1-9.

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