Lifting handrail structure

Abstract

The utility model provides a lifting handrail structure. The lifting handrail structure comprises a handrail body; the telescopic mechanism is arranged in a telescopic mode, and the telescopic end of the telescopic mechanism is connected with the handrail body; the locking mechanism is mounted on the telescopic mechanism and is used for locking or unlocking the telescopic action of the telescopic mechanism; the telescopic mechanism is arranged, the handrail body is horizontally connected to the telescopic mechanism, the height and the front-back position of the handrail body are adjusted through the telescopic action of the telescopic mechanism, and the telescopic length of the telescopic mechanism is limited through the locking mechanism, so that the handrail body is stably kept at the needed position; the chair is stable in structure and convenient to operate, and solves the technical problems that the position of the armrest of the chair in the prior art cannot be adjusted, so that the armrest cannot effectively support the elbow when the sitting posture of a user changes or users with different body types use the chair, the comfort is poor, and the armrest adaptability is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of chair armrests, in particular to a lifting armrest structure. Background Art

[0002] As a common piece of furniture, chairs are widely used in office and life. In order to improve the comfort and safety of use, the chairs are provided with armrests as above.

[0003] Chinese patent CN01124804.1 discloses an armrest of a chair, an armchair or the like and a chair using the armrest, wherein the armrest comprises a support column and an armrest body connected to the upper end of the support column and defining the longitudinal direction of the armrest, wherein the armrest body rotates around a first vertical axis and can present different tilting positions around the first vertical axis, and can position the armrest at different operating angles in a transverse direction relative to the longitudinal direction of the armrest and relative to the support column, wherein the armrest body is mounted on an intermediate support member connected to the support column of the armrest, the armrest body is rotatably mounted around the first vertical axis on the intermediate support member, and the intermediate support member is mounted on the support column so that the intermediate support member can pivotally move in a transverse direction and a horizontal direction relative to the longitudinal direction of the armrest, and devices are provided between the armrest body and the intermediate support member, which are used to define a non-rotating neutral position of the armrest body and at least two extreme tilting positions rotating in opposite directions around the first vertical axis; the intermediate support member comprises a connecting member, which cooperates with an elastic clamp connected to the armrest body to define the operating angle position of the armrest body around the first axis.

[0004] However, in the prior art solutions, the position of the chair armrests is usually not adjustable, so that when the user's sitting posture changes or when users of different body shapes use the chair, the armrests cannot provide effective support for the elbows, resulting in poor comfort and poor adaptability of the armrests. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the prior art and to provide a lifting armrest structure, by providing a telescopic mechanism of the telescopic structure, and horizontally connecting an armrest body to the telescopic mechanism, the height and front-to-rear position of the armrest body are adjusted by the telescopic action of the telescopic mechanism, and a locking mechanism is provided to limit the telescopic length of the telescopic mechanism, so that the armrest body can be stably maintained at a desired position, the structure is stable, and the operation is convenient, and the technical problems existing in the prior art that the position of the armrest of the chair is usually unable to be adjusted, so that when the user's sitting posture changes or when users of different body shapes use the chair, the armrest cannot provide effective support for the elbow, and the comfort is poor and the armrest has poor adaptability, etc. are solved.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A lifting armrest structure comprises: an armrest body; a telescopic mechanism, the telescopic mechanism is telescopically arranged and the telescopic end thereof is connected to the armrest body; and a locking mechanism, the locking mechanism is installed on the telescopic mechanism and locks or unlocks the telescopic action of the telescopic mechanism.

[0008] Preferably, the telescopic mechanism comprises: a support arm; and a telescopic arm, wherein the telescopic arm is slidably mounted relative to the support arm, and the armrest body is connected to an end of the telescopic arm.

[0009] Preferably, the telescopic arm is configured as a hollow sleeve structure, which is slidably sleeved outside the support arm.

[0010] Preferably, the locking mechanism includes: a locking member, which is movably arranged along a telescopic direction perpendicular to the telescopic mechanism; and a gear slot, which is provided on the support arm along the sliding direction of the telescopic arm, and the locking member moves to be stuck in the gear slot to limit the telescopic movement of the telescopic arm or disengage from the gear slot to allow the telescopic arm to be freely telescopic.

[0011] Preferably, the gear slot includes a long strip slide slot and locking slots arranged in an array along the length direction of the slide slot, and the width dimension of the locking slot is larger than the width dimension of the slide slot; the locking member is arranged to penetrate the telescopic mechanism along a direction perpendicular to the telescopic direction of the telescopic mechanism, and includes a connecting rod passing through the slide slot and a locking head connected to one end of the connecting rod, and the width dimension of the connecting rod is smaller than the width dimension of the slide slot, so that the connecting rod can move freely in the slide slot, and the width dimension of the locking head is matched with the width dimension of the locking slot, so that the locking head can be clamped in the locking slot.

[0012] Preferably, the locking member further comprises: a button portion, the other end of the connecting rod relative to the locking head is connected to the button portion, and the button portion is exposed outside the telescopic arm for pressing operation.

[0013] Preferably, the locking mechanism also includes: a reset seat, which is installed on the telescopic arm on the side of the locking head away from the button portion; and an elastic member, which is connected between the reset seat and the locking head, and drives the locking member to elastically reset so that the locking head is engaged in the locking groove.

[0014] Preferably, the locking groove is configured as a circular groove.

[0015] Preferably, the armrest body is horizontally arranged, the telescopic mechanism is connected to the bottom of the armrest body and forms an acute angle α with the armrest body, and the telescopic mechanism drives the armrest body to move and adjust its position in the horizontal and vertical directions simultaneously when performing the telescopic action.

[0016] Preferably, it further comprises: a connecting seat, on which the supporting arm is mounted, and the connecting seat is used to be connected to the seat body.

[0017] The beneficial effects of the utility model are:

[0018] (1) The utility model provides a telescopic mechanism of a telescopic structure, and a handrail body is horizontally connected to the telescopic mechanism. The height and front-rear position of the handrail body are adjusted by the telescopic action of the telescopic mechanism, and a locking mechanism is provided to limit the telescopic length of the telescopic mechanism, so that the handrail body is stably maintained at a desired position, and the structure is stable and easy to operate;

[0019] (2) The utility model provides a locking mechanism that penetrates the telescopic structure and provides a multi-position gear slot on the support arm. The locking head is disengaged from the locking slot by pressing the button portion, so that the telescopic arm can slide freely. The locking head is re-positioned and stuck in the locking slot by resetting the button portion and cannot move, thereby limiting the telescopic sliding of the telescopic arm and realizing the locking or unlocking of the telescopic action. The structure is simple and the operation is convenient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a front view of the connection structure between the armrest body and the telescopic mechanism in the utility model;

[0022] Figure 3 This is a structural front view of the support arm in the utility model;

[0023] Figure 4 for Figure 2 A schematic cross-sectional view;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 It is a schematic diagram of the main structure of the locking mechanism in the utility model;

[0026] Figure 7 for Figure 6 Sectional view at point C in the middle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Embodiment 1

[0031] like Figure 1-2 As shown, a lifting armrest structure comprises: an armrest body 1; a telescopic mechanism 2, the telescopic mechanism 2 is telescopically arranged and the telescopic end portion of the telescopic mechanism 2 is connected to the armrest body 1; and a locking mechanism 3, the locking mechanism 3 is installed on the telescopic mechanism 2, and the locking mechanism 3 is used to lock or unlock the telescopic action of the telescopic mechanism 2.

[0032] In this embodiment, a telescopic mechanism 2 of a telescopic structure is provided, and an armrest body 1 is horizontally connected to the telescopic mechanism 2. The height and front and rear position of the armrest body 1 are adjusted by the telescopic action of the telescopic mechanism 2, and a locking mechanism 3 is provided to limit the telescopic length of the telescopic mechanism 2, so that the armrest body 1 is stably maintained in the desired position, the structure is stable, and the operation is convenient.

[0033] As a preference, Figure 2-3 As shown, the telescopic mechanism 2 includes: a support arm 21; and a telescopic arm 22, the telescopic arm 22 is slidably installed relative to the support arm 21, and the armrest body 1 is connected to the end of the telescopic arm 22.

[0034] As a preference, Figure 5 As shown, the telescopic arm 22 is configured as a hollow sleeve structure, which is slidably sleeved outside the support arm 21.

[0035] As a preference, Figure 6 As shown, the locking mechanism 3 includes: a locking member 31, and the locking member 31 is movably arranged along a direction perpendicular to the telescopic direction of the telescopic mechanism 2; Figure 3 As shown, the gear slot 32 is provided on the support arm 21 along the sliding direction of the telescopic arm 22, and the locking member 31 moves to be stuck in the gear slot 32 to limit the telescopic movement of the telescopic arm 22 or disengage from the gear slot 32 so that the telescopic arm 22 can be freely extended and retracted.

[0036] As a preference, Figure 3 As shown, the shift slot 32 includes a long strip-shaped slide slot 321 and a locking slot 322 arranged in an array along the length direction of the slide slot 321. The width of the locking slot 322 is greater than the width of the slide slot 321. Figure 5-7 As shown, the locking member 31 is arranged to penetrate the telescopic mechanism 2 along a direction perpendicular to the telescopic direction of the telescopic mechanism 2, and includes a connecting rod 311 inserted into the slide groove 321 and a locking head 312 connected to one end of the connecting rod 311. The width dimension of the connecting rod 311 is smaller than the width dimension of the slide groove 321, so that the connecting rod 311 can move freely in the slide groove 321, and the width dimension of the locking head 312 is adapted to the width dimension of the locking groove 322, so that the locking head 312 can be clamped in the locking groove 322.

[0037] Preferably, the locking groove 322 is configured as a circular groove.

[0038] Preferably, the locking member 31 further comprises: a button portion 313 , the other end of the connecting rod 311 relative to the locking head 312 is connected to the button portion 313 , and the button portion 313 is exposed outside the telescopic arm 22 for pressing operation.

[0039] In this embodiment, a locking mechanism 3 is provided that penetrates the telescopic structure, a multi-position gear slot 32 is provided on the support arm 21, and the locking head 312 is disengaged from the locking slot 322 by pressing the button portion 313, so that the telescopic arm 22 can slide freely, and the locking head 312 is re-positioned and stuck in the locking slot 322 by resetting the button portion 313 and cannot move, thereby limiting the telescopic sliding of the telescopic arm 22 and realizing the locking or unlocking of the telescopic action. The structure is simple and the operation is convenient and stable.

[0040] As a preference, Figure 2As shown, the armrest body 1 is horizontally arranged, the telescopic mechanism 2 is connected to the bottom of the armrest body 1 and forms an acute angle α with the armrest body 1, and the telescopic mechanism 2 drives the armrest body 1 to move and adjust its position in the horizontal and vertical directions simultaneously when performing the telescopic action.

[0041] As a preference, Figure 1 As shown, it also includes: a connecting seat 4, the support arm 21 is installed on the connecting seat 4, and the connecting seat 4 is used to connect to the seat body.

[0042] Embodiment 2

[0043] The components of this embodiment that are the same as or corresponding to those in the above embodiment are marked with the same reference numerals as those in the above embodiment. For the sake of simplicity, only the differences from the above embodiment are described below. The differences between this embodiment and the above embodiment are:

[0044] Preferably, the locking mechanism 3 also includes: a reset seat 33, which is installed on the telescopic arm 22 on the side of the locking head 312 away from the button part 313; and an elastic member, which is connected between the reset seat 33 and the locking head 312, and drives the locking member 31 to elastically reset so that the locking head 312 is engaged in the locking groove 322.

[0045] In this embodiment, an elastic reset structure is provided to realize automatic reset of the locking member 31, so that after the pressing force is removed, when the locking head 312 is aligned with a locking groove 322, it can automatically engage in the locking groove 322, which is easy to operate and quick to lock.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting handrail structure, characterized in that: include: Handrail body (1); A telescopic mechanism (2), the telescopic mechanism (2) being telescopically arranged and having a telescopic end portion connected to the armrest body (1); and A locking mechanism (3), the locking mechanism (3) being mounted on the telescopic mechanism (2) and being used to lock or unlock the telescopic action of the telescopic mechanism (2); The telescopic mechanism (2) comprises: a support arm (21); and A telescopic arm (22), wherein the telescopic arm (22) is slidably mounted relative to the support arm (21), and the armrest body (1) is connected to an end of the telescopic arm (22); The locking mechanism (3) comprises: A locking member (31), wherein the locking member (31) is movably arranged along a direction perpendicular to the telescopic direction of the telescopic mechanism (2); and A gear slot (32) is provided on the support arm (21) along the sliding direction of the telescopic arm (22), and the locking member (31) moves to be locked in the gear slot (32) to limit the telescopic movement of the telescopic arm (22) or is disengaged from the gear slot (32) to allow the telescopic arm (22) to freely telescope.

2. A lifting handrail structure according to claim 1, characterized in that: The telescopic arm (22) is configured as a hollow sleeve structure, which is slidably sleeved outside the support arm (21).

3. The lifting handrail structure according to claim 1, characterized in that: The gear slot (32) comprises a long strip-shaped slide slot (321) and locking slots (322) arranged in an array along the length direction of the slide slot (321), wherein the width of the locking slot (322) is greater than the width of the slide slot (321); The locking member (31) is arranged to penetrate the telescopic mechanism (2) along a direction perpendicular to the telescopic direction of the telescopic mechanism (2), and comprises a connecting rod (311) inserted into the slide groove (321) and a locking head (312) connected to one end of the connecting rod (311); the width of the connecting rod (311) is smaller than the width of the slide groove (321), so that the connecting rod (311) can move freely in the slide groove (321); the width of the locking head (312) is matched with the width of the locking groove (322), so that the locking head (312) can be clamped in the locking groove (322).

4. A lifting handrail structure according to claim 3, characterized in that: The locking member (31) further comprises: A button portion (313), the other end of the connecting rod (311) relative to the locking head (312) is connected to the button portion (313), and the button portion (313) is exposed outside the telescopic arm (22) for pressing operation.

5. The lifting handrail structure according to claim 4, characterized in that: The locking mechanism (3) further comprises: A reset seat (33), the reset seat (33) being mounted on the telescopic arm (22) on a side of the locking head (312) away from the button portion (313); and An elastic member is connected and arranged between the reset seat (33) and the locking head (312), and drives the locking member (31) to reset elastically so that the locking head (312) is engaged in the locking groove (322).

6. The lifting handrail structure according to claim 3, characterized in that: The locking groove (322) is configured as a circular groove.

7. The lifting handrail structure according to claim 1, characterized in that: The armrest body (1) is arranged horizontally, the telescopic mechanism (2) is connected to the bottom of the armrest body (1) and forms an acute angle α with the armrest body (1), and when the telescopic mechanism (2) performs a telescopic action, it drives the armrest body (1) to move and adjust its position in both the horizontal and vertical directions.

8. The lifting handrail structure according to claim 1, characterized in that: Also includes: A connecting seat (4), the supporting arm (21) is mounted on the connecting seat (4), and the connecting seat (4) is used to be connected to a seat body.

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