Armrest mounting assembly and chair

Abstract

The utility model relates to the field of seats, and discloses an armrest mounting component and a chair, two connecting points are respectively arranged in a staggered manner, and the stress concentration of a single point is reduced through the deliberately arranged deviation of the connecting positions. The chair comprises a chair seat provided with a first slot and a second slot, and the first slot and the second slot are arranged in a staggered manner; the handrail is provided with a first inserting piece and a second inserting piece, the first inserting piece can be inserted into the first inserting groove, and the second inserting piece can be inserted into the second inserting groove. The first locking piece is used for fixing the first inserting piece and the first inserting groove; and the second locking piece is used for fixing the second inserting piece and the second inserting groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially a handrail mounting assembly and chair. BACKGROUND

[0002] The seat is indispensable in daily life, and the structural design and assembly process thereof play a crucial role in use experience. Generally, the seat mainly comprises four key parts, i.e., a chair leg, a seat, a handrail and a backrest.

[0003] In the existing design, there is usually only one connection point between the handrail and the seat. When the user uses the seat, the handrail needs to bear pressure from different directions, which makes the connection point bear a large stress, and stress concentration is likely to occur, thereby causing damage to the connection point, affecting the service life of the handrail and making it unable to provide reliable support for the user for a long time. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a handrail mounting assembly, two connection points are located in a staggered manner, and the deviation of the intentionally arranged connection positions reduces single-point stress concentration.

[0005] The utility model further provides a chair with the above-mentioned handrail mounting assembly.

[0006] On the one hand, the handrail mounting assembly according to the utility model embodiment comprises:

[0007] The seat is provided with a first slot and a second slot, and the first slot and the second slot are arranged in a staggered manner;

[0008] The handrail is provided with a first plug-in part and a second plug-in part, the first plug-in part can be inserted into the first slot, and the second plug-in part can be inserted into the second slot.

[0009] The first locking part is used for fixing the first plug-in part and the first slot;

[0010] The second locking part is used for fixing the second plug-in part and the second slot.

[0011] According to some embodiments of the utility model, the first slot and the second slot are arranged in a staggered manner based on one or more of the front-rear, left-right or up-down directions.

[0012] According to some embodiments of the utility model, the handrail comprises, in sequence from top to bottom:

[0013] A support part;

[0014] A connecting portion is arranged on the supporting portion, the connecting portion is curved towards the middle portion of the seat, the first plug-in part is arranged on the side close to the upper end of the connecting portion, and the second plug-in part is arranged on the side close to the lower end of the connecting portion.

[0015] According to some embodiments of the present application, the first plug-in part and the second plug-in part are both extended along the first direction.

[0016] According to some embodiments of the present application, the first locking part is inserted into the first plug-in part along the direction perpendicular to the first direction, and the second locking part is inserted into the second plug-in part along the direction perpendicular to the first direction.

[0017] According to some embodiments of the present application, the first plug-in part is rectangular in the cross section perpendicular to the first direction.

[0018] According to some embodiments of the present application, the thickness of the armrest in the left-right direction is smaller than the thickness of the armrest in the front-rear direction.

[0019] According to some embodiments of the present application, the armrest is provided with an inner groove on the side close to the seat.

[0020] According to some embodiments of the present application, the seat comprises:

[0021] A bottom mounting base, and the second plug-in part is arranged on the bottom mounting base.

[0022] A side mounting base, and the first plug-in part is arranged on the side mounting base, the bottom mounting base is arranged below the side mounting base, and the side mounting base is used for mounting a cushion.

[0023] On the other hand, according to some embodiments of the present application, a chair comprises the armrest mounting assembly according to the above embodiments of the present application.

[0024] The embodiments of the present application have at least the following advantages:

[0025] Two connecting points are arranged between the armrest and the seat, and the two connecting points are arranged in a staggered manner, and the bias of the connecting position is intentionally arranged, and the upper and lower, left and right, or front and back distribution of the slot (for example, the first slot is arranged at the upper position, and the second slot is arranged at the lower position, and the upper and lower slots are arranged in a vertical direction, the upper slot resists the bending moment of the armrest downward, and the lower slot provides the supporting force against lifting), which reduces the stress concentration of the single point; when the user frequently leans on the armrest, the double-slot design can disperse the load to two points, delay the plastic creep or plastic deformation of the metal part; the pre-tightening force generated by the bias fit reduces the fretting wear between the parts, and avoids the friction noise caused by the increase of the gap after long-term use; the slot and the plug can be designed as a buckle type connection, and the locking piece is used as a secondary safety device, which is convenient for users to disassemble, clean or replace the armrest.

[0026] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 It is a general structure schematic diagram of the armrest mounting assembly of the embodiment of the present application;

[0029] Figure 2 It is an exploded structure schematic diagram of the armrest mounting assembly of the embodiment of the present application;

[0030] Figure 3 It is a front structure schematic diagram of the armrest mounting assembly of the embodiment of the present application;

[0031] Figure 4 It is a side structure schematic diagram of the armrest mounting assembly of the embodiment of the present application;

[0032] Figure 5 It is a structure schematic diagram of the armrest 200 of the embodiment of the present application;

[0033] Reference signs:

[0034] Seat 100, first slot 110, second slot 120, bottom mounting seat 130, side mounting seat 140;

[0035] Armrest 200, first plug 210, second plug 220, support part 230, connecting part 240 DETAILED DESCRIPTION

[0036] The following will describe several embodiments of the utility model, including the corresponding embodiments of the drawings, it can be understood that the drawings are used to assist understanding the technical features and technical schemes of the utility model, and should not be understood as limiting the protection scope of the utility model.

[0037] The following will combine the embodiments and the drawings to make clear and complete description of the conception, specific structure and generated technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model.It needs to be explained that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0038] It needs to be explained that, unless otherwise explicitly limited, when a certain feature is referred to as being "fixed", "connected", "installed" on another feature, it can be directly fixed, connected on another feature, or indirectly fixed, connected on another feature, and "fixed", "connected", "installed" and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0039] It needs to be explained that the description of the orientation or position relationship of the utility model used in the utility model, such as up, down, left, right, top, bottom, front, back, inside and outside, is based on the orientation or position relationship of the drawings or embodiments, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0040] It needs to be explained that the term "and / or" used in the utility model includes any combination of one or more related listed items, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc.is not included in the number, above, below, etc.is understood as including the number.

[0041] It needs to be explained that, in the utility model, if the first, second is described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0042] It needs to be explained that, unless otherwise explicitly limited, all technical and scientific terms used in the present application have the same meaning as understood by the person skilled in the art.The terms used in the specification are only used to describe specific embodiments, and are not intended to limit the utility model.

[0043] Referring Figures 1-5 , the first aspect of the utility model provides a handrail mounting assembly, comprising:

[0044] The chair seat 100 is provided with a first slot 110 and a second slot 120, and the first slot 110 and the second slot 120 are arranged in a staggered manner.

[0045] The armrest 200 is provided with a first plug 210 and a second plug 220, the first plug 210 can be inserted into the first slot 110, and the second plug 220 can be inserted into the second slot 120.

[0046] The first locking piece is used for fixing the first plug 210 and the first slot 110.

[0047] The second locking piece is used for fixing the second plug 220 and the second slot 120.

[0048] The second aspect of the utility model provides a chair, comprising an armrest 200.

[0049] According to the embodiment of the utility model, by thus setting, can achieve at least some effects as follows, two connecting point positions are arranged between the armrest 200 and the chair seat 100, and the two connecting point positions are located in a staggered manner, by intentionally setting the deviation of the connecting position, the upper and lower, left and right or front and back distributed slots (for example, the first slot 110 is above, and the second slot 120 is below and is staggered in the vertical direction, the upper slot resists the bending moment of the armrest 200 downward pressure, and the lower slot provides the supporting force resisting lifting), reduce the single-point stress concentration; when simulating the user frequently leaning on the armrest 200, the double-slot design can disperse the load to two point positions, delay plastic creep or metal plastic deformation; by the pre-tightening force generated by the deviation fit, reduce the fretting wear between components, avoid the friction noise caused by the increase of gap after long-term use; the slot and the plug can be designed as a buckle type connection, and the locking piece is matched as a secondary safety, which is convenient for the user to disassemble, clean or replace the armrest 200.

[0050] It can be understood that in mechanical or structural design, the "staggered arrangement" usually means intentionally designing the positions of two or more connecting points to be not completely aligned, introducing pre-tightening force, complementary constraint or dispersing load through geometric deviation, so as to improve the stability, strength or assembly convenience of the overall structure.

[0051] In some embodiments, the first slot 110 and the second slot 120 are arranged in a staggered manner based on one or more of the front-back, left-right or up-down directions. The two slots have a design deviation in the horizontal direction, and can form an asymmetric constraint, for example, the upper slot is slightly forward, and the lower slot is slightly backward, so that a pre-tightening force is generated after insertion, resisting the front and back shaking of the armrest 200.

[0052] It should be noted that the armrest 200 is generally provided with two, two armrests 200 are symmetrically arranged, here the first slot 110 and the second slot 120 are taken as an example with one of the armrests 200, and the other armrest 200 is symmetrically arranged.

[0053] In some embodiments, the armrest 200 comprises, from top to bottom, in sequence:

[0054] The support part 230;

[0055] The connecting part 240 is arranged on the support part 230, and the connecting part 240 is curved towards the middle part of the seat 100. The first plug-in part 210 is located on one side close to the upper end of the connecting part 240, and the second plug-in part 220 is located on one side close to the lower end of the connecting part 240.

[0056] In this arrangement, the connecting part 240 is curved relative to the support part 230 to adapt to the contour below the base, and the first plug-in part 210 is located on the upper right side of the second plug-in part 220, and generates a pre-tightening force after being inserted to resist the front and back shaking of the armrest 200.

[0057] In some embodiments, the first plug-in part 210 and the second plug-in part 220 both extend along the first direction. The plug-in part structure extending in the same direction can be installed by inserting the armrest 200 into the seat 100 in the first direction, which is convenient to install and use.

[0058] In some embodiments, the first locking part passes through the first plug-in part 210 in a direction perpendicular to the first direction and is inserted into the first slot 110 to relatively fix the first plug-in part 210 and the first slot 110, and the second locking part passes through the second plug-in part 220 in a direction perpendicular to the first direction and is inserted into the second slot 120 to relatively fix the second plug-in part 220 and the second slot 120. The double shear-resistant design: the first locking part (such as a screw) fixes the upper slot and the plug-in part, mainly resisting the shear force in the vertical direction; the second locking part fixes the lower slot and the plug-in part, resisting the shear force in the horizontal direction, forming multi-dimensional constraint; the redundant safety mechanism: if one locking part fails (such as a loose screw), the other locking part can still maintain the basic connection, reducing the overall failure risk.

[0059] In some embodiments, the first locking part is a bolt or glue, which is inserted into the plug-in part or combined with the plug-in part and the slot to form a fixing effect.

[0060] In some embodiments, the first plug-in part 210 has a rectangular cross section cut along a direction perpendicular to the first direction. The rectangular cross section can prevent the first plug-in part 210 from rotating and play a role in alignment.

[0061] In some embodiments, the thickness of the armrest 200 in the left-right direction is less than the thickness of the armrest 200 in the front-rear direction. The armrest 200 has a larger width in the front-rear direction, and the design width of the first and second inserts 210 and 220 in the front-rear direction can also be increased accordingly, which can effectively increase the cross-sectional area of the inserts, increase the strength of the inserts, and improve the stability of the installation.

[0062] In some embodiments, the armrest 200 is provided with an inner groove on the side close to the seat 100. The design of the inner groove can reduce the cross-section of the armrest 200 without changing the front-rear width and the left-right width, thereby reducing the material usage of the armrest 200 and saving costs.

[0063] In some embodiments, the seat 100 comprises:

[0064] The bottom mounting seat 130 is provided with the second slot 120.

[0065] The side mounting seat 140 is provided with the first slot 110, and the bottom mounting seat 130 is arranged below the side mounting seat 140, and the side mounting seat 140 is used for mounting the cushion.

[0066] In this arrangement, the bottom mounting seat 130 and the side mounting seat 140 are arranged in an up-down direction, and a cavity is formed between the two, which can prevent the cushion or the mesh cloth from being placed in the cavity, effectively increase the thickness of the cushion, and improve the comfort of the user.

[0067] It should be noted that the terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" and the like can be used in the present specification to describe some embodiments of the present application, and the specific features, structures, materials or characteristics of some embodiments can be combined in accordance with the principles and purposes of the present application.

[0068] Although some embodiments of the present application have been shown and described in the present specification, the present application should not be limited to the above-mentioned embodiments, but any changes, modifications, equivalent replacements and equivalent variations of these embodiments within the spirit and principles of the present application, without departing from the principles and purposes of the present application, should be included in the scope of protection of the present application, and should be considered to be within the protection scope of the present application.

Claims

1. A handrail mounting assembly characterized by, The armrest mounting assembly comprises: a seat (100) provided with a first slot (110) and a second slot (120), the first slot (110) and the second slot (120) being staggered; an armrest (200) provided with a first plug (210) and a second plug (220), the first plug (210) being capable of being inserted into the first slot (110), and the second plug (220) being capable of being inserted into the second slot (120); a first locking member for fixing the first plug (210) and the first slot (110); a second locking member for fixing the second plug (220) and the second slot (120).

2. The handrail mounting assembly of claim 1, wherein: The first slot (110) and the second slot (120) are staggered in one or more of the front-back, left-right or up-down directions.

3. The handrail mounting assembly of claim 2, wherein: The armrest (200) comprises, from top to bottom: a support portion (230); a connecting portion (240) provided on the support portion (230), the connecting portion (240) being curved towards the middle portion of the seat (100), the first plug (210) being located on the side close to the upper end of the connecting portion (240), and the second plug (220) being located on the side close to the lower end of the connecting portion (240).

4. The handrail mounting assembly of claim 1, wherein: The first plug (210) and the second plug (220) both extend in a first direction.

5. The handrail mounting assembly of claim 4, wherein: The first locking member passes through the first plug (210) in a direction perpendicular to the first direction and is inserted into the first slot (110) to relatively fix the first plug (210) and the first slot (110), and the second locking member passes through the second plug (220) in a direction perpendicular to the first direction and is inserted into the second slot (120) to relatively fix the second plug (220) and the second slot (120).

6. The handrail mounting assembly of claim 1, wherein: The first plug (210) has a rectangular cross section cut in a direction perpendicular to the first direction.

7. The handrail mounting assembly of claim 1, wherein: The thickness of the armrest (200) in the left-right direction is less than the thickness of the armrest (200) in the front-back direction.

8. The handrail mounting assembly of claim 1, wherein: The armrest (200) is provided with an inner groove on the side close to the seat (100).

9. The handrail mounting assembly of claim 1, wherein: The seat (100) comprises: a bottom mounting base (130), the second slot (120) being provided on the bottom mounting base (130); a side mounting base (140), the first slot (110) being provided on the side mounting base (140), the bottom mounting base (130) being arranged below the side mounting base (140), and the side mounting base (140) being used for mounting a cushion.

10. A chair characterized by: The armrest mounting assembly comprises the armrest mounting assembly according to any one of claims 1 to 9.

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