Armrest structure and bath chair

Abstract

The utility model relates to the technical field of bathing assistive devices, and discloses an armrest structure and a bathing chair, the armrest structure comprises a chair frame, the chair frame is composed of a front leg and a rear leg, the front leg extends upwards and is bent to define a chair back supporting part, and armrest assemblies are symmetrically arranged on the two sides of the chair back supporting part. The armrest assembly is pivotally connected with the chair back supporting part through a pivoting connecting piece, rotates up and down around the chair back supporting part to be folded and unfolded, and is also provided with a folding avoiding structure; the problems that in the prior art, an armrest assembly is externally arranged on the outer side of a support, a force bearing center moves outwards to the outside of a chair body when the armrest assembly is stressed, supporting is unstable after the armrest assembly is stressed, the anti-roll performance is poor, arms are uncomfortably placed, and the folding effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bathing aids, in particular to an armrest structure and a bathing chair. Background Art

[0002] Bath chairs are used for bathing in the bathroom. They are suitable for the elderly, pregnant women, disabled people and other people with limited mobility to play an auxiliary role in bathing or showering, so that users can hold on to the bath chair or sit on it to bathe, which improves the safety of users' bathing. According to different groups of people and different needs, the details are designed to be more humane. For example, the armrests on the bath chair are particularly important and humane.

[0003] For example, the patent application with publication number CN113576296A discloses a bathing chair, in which the armrest assembly is connected through an armrest bracket fixed to the outside of the front frame. The armrest assembly includes an anti-pinch cover, an armrest tube and an armrest tube sleeve, and the anti-pinch cover is fixed on the outside of the armrest bracket. One end of the armrest tube is arranged in the anti-pinch cover and movably connected to the anti-pinch cover through a pin shaft, and an armrest tube sleeve is provided on the outer surface of the armrest tube. As shown in the above armrest assembly structure, the armrest assembly is placed on the outside of the bracket, which increases the usable space of the seat and effectively improves the overall comfort of the user.

[0004] Although the armrest assembly arrangement as described above increases the usable space of the seat, it also has the problem of the load center moving outward to the outside of the chair body when subjected to force, which can easily cause sideways tilting and falling, unstable support, and poor anti-tilting performance. At the same time, due to the circular tube structure adopted in the armrest part, the armrest is uncomfortable to rest on. Moreover, due to the side external armrest structure, most of the armrests also have a poor folding effect, which often affects the overall folding space. Utility Model Content

[0005] In view of the shortcomings of the existing technology, an armrest structure and a bathing chair are provided, which are safe and stable, have good anti-roll performance, are comfortable for armrest, and can reduce folding space. The utility model provides an armrest structure and a bathing chair, which overcome the problems in the existing technology that the armrest assembly is placed outside the bracket, and the load-bearing center moves outward to the outside of the chair body when subjected to force, resulting in unstable support after being subjected to force, poor anti-roll performance, uncomfortable armrest placement, and affected folding effect.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions.

[0007] The utility model relates to an armrest structure and a bathing chair, comprising a chair frame, wherein the chair frame is composed of front legs and rear legs, the front legs extending upward and being bent to form a chair back support portion, armrest assemblies being symmetrically provided on both sides of the chair back support portion, the armrest assemblies being pivotally connected to the chair back support portion via a pivot connection member, and being rotated up and down around the chair back support portion to be retracted and extended, and the armrest assemblies are also provided with a folding and yielding structure.

[0008] A further improvement lies in that: an arc-shaped structure is provided inside the pivot connecting piece and is adapted and fixed to the backrest support part, and a pivot hole is provided on the pivot connecting piece and is rotationally connected to the armrest assembly through a pivot.

[0009] A further improvement lies in that: the armrest assembly is composed of an armrest steel frame and an armrest cover. The armrest steel frame is provided with an arc-shaped cavity structure with an opening. Symmetrically arranged at the front end of the armrest steel frame are arc-shaped structure pivot connecting covers which are pivotally connected and installed on the outside of the pivot connecting piece. A through hole adapted to and corresponding to the pivot hole is provided at the front end of the arc-shaped structure, and a relief opening is further provided above the arc-shaped structure.

[0010] A further improvement lies in that: an armrest limiting rod is further provided on the arc-shaped structure. The armrest limiting rod abuts against and supports the pivot connecting piece, and the armrest steel frame is a sheet metal integrally formed structure.

[0011] A further improvement lies in that: the armrest cover is provided with a cavity structure with an opening at the front end and is adapted to be sleeved outside the armrest steel frame. An anti-slip protrusion is further provided on the top surface of the end of the armrest cover.

[0012] A further improvement lies in that: covers are further provided on both sides of the armrest cover. The covers are respectively connected to the armrest steel frame and the armrest cover through fasteners, and the armrest cover is a mildew-proof EVA material foamed and integrally formed structure.

[0013] A further improvement lies in that: the folding relief structure is an arc-shaped groove provided on the top surface of the armrest cover. The arc-shaped groove is arranged in a transition from deep to shallow from the connection end to the distal end of the armrest cover.

[0014] A further improvement lies in that: a support sheath is further provided between the armrest assembly and the backrest support part. An accommodation cavity adapted to and nested with the pivot connecting piece is provided inside the support sheath. A limiting groove adapted to and abutting against and supporting the armrest limiting rod is provided at one end of the outside of the support sheath. Connection holes corresponding to the pivot holes are symmetrically provided on both sides of the support sheath.

[0015] A further improvement lies in that: it further includes a seat and a backrest provided on the chair frame. Load-bearing connecting rods are respectively horizontally arranged between the two feet of the front feet and the rear feet. The seat is erected on the load-bearing connecting rods and is pivotally connected to the load-bearing connecting rod of the rear feet in an adapted manner. The top of the rear feet is supported on the rear side of the front feet, and hinge support structures are respectively provided on both sides of the front feet and the rear feet. The backrest is connected to the middle position at the top of the backrest support part. A height adjustment tube is further provided at the bottom of the chair frame to adjust the heights of the front feet and the rear feet.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] By extending the front feet upward and bending them to fixedly install pivot connectors on both sides enclosing the backrest support part, by providing an armrest steel frame with an arc-shaped cavity structure, and symmetrically providing arc-shaped structures at the front end of the armrest steel frame to pivotally connect and cover the outside of the pivot connectors, it is ensured that the center line of the armrest assembly coincides with the connection line of the front and rear feet on the same side. Thus, when the armrest assembly is stressed, the load-bearing center will not shift outside the chair body, effectively preventing tilting due to stress and unstable support. Through the folding and yielding structure of the arc-shaped groove on the top surface of the armrest cover, when lifting and folding the armrest assembly, the contact between the arc-shaped groove and the backrest support part is prevented from being blocked, thereby reducing the folding thickness and further reducing the folding space. At the same time, setting the arc-shaped groove on the armrest cover can also support, limit, and provide a comfortable resting effect for the arm placed on it. The setting of the anti-slip protrusions prevents slipping when grasping in a humid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional assembled structure of the present utility model.

[0019] Figure 2 is an enlarged schematic diagram of the three-dimensional structure of the present utility model.

[0020] Figure 3 is an exploded view of the armrest structure assembly of the present utility model.

[0021] Figure 4 is a three-dimensional schematic diagram of the armrest steel frame and the armrest cover of the present utility model.

[0022] Figure 5 is another three-dimensional schematic diagram of the armrest steel frame and the armrest cover of the present utility model.

[0023] Figure 6 is a three-dimensional schematic diagram of the support sheath of the present utility model.

[0024] Figure 7 is a schematic diagram of the folded state of the present utility model.

[0025] REFERENCE NUMERALS:

[0026] Chair frame 1, front foot 11, foot 12, backrest support part 13, load-bearing connecting rod 14, articulated support structure 15, height adjustment tube 16, seat 2, backrest 3, armrest assembly 4, armrest steel frame 41, arc-shaped structure 411, through hole 412, yielding opening 413, armrest cover 42, cover plate 43, anti-slip protrusion 421, pivot connector 5, arc-shaped structure 51, pivot hole 52, folding and yielding structure 6, pivot shaft 7, armrest limiting rod 8, support sheath 9, accommodating cavity 91, limiting groove 92, connection hole 93. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings. This embodiment is only used to explain the present utility model and does not constitute a limitation to the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the combination or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figure 1-7 As shown, there is an armrest structure, which includes a chair frame 1. The chair frame 1 is composed of a front leg 11 and a rear leg 12. The front leg 11 extends upward and bends to enclose a backrest support part 13. Armrest assemblies 4 are symmetrically arranged on both sides of the backrest support part 13. Among them: the front leg 11 and the backrest support part 13 can be an integrally formed structure of a pipe, or a split-assembled structure; the armrest assembly 4 is pivotally connected through a pivot connecting member 5 fixedly connected to the backrest support part 13 and rotates up and down around the backrest support part 13 for folding and unfolding. An arc structure 51 is provided inside the pivot connecting member 5 and is adapted and fixed to the backrest support part 13. A pivot hole 52 is provided on the pivot connecting member 5 and is rotationally connected to the armrest assembly 4 through a pivot shaft 7; the armrest assembly 4 is composed of an armrest steel frame 41 and an armrest cover 42. The armrest steel frame 41 is set as an arc-shaped cavity structure with an opening, such as Figure 4 、 5The shown armrest steel frame 41 is provided with openings at the lower end face and two top end faces. It can also be provided with openings only at the lower end face and the connecting end. The front end of the armrest steel frame 41 is symmetrically provided with an arc-shaped structure 411 pivotally connected and covered outside the pivot connector 5. The front end of the arc-shaped structure 411 is provided with a through hole 412 adapted to and corresponding to the pivot hole 52. Above the arc-shaped structure 411, there is also a relief opening 413; the armrest cover 42 is provided as a cavity structure with an opening at the front end and is suitably sleeved outside the armrest steel frame 41. The top surface of the end of the armrest cover 42 is also provided with an anti-slip protrusion 421; the armrest assembly 4 is also provided with a folding relief structure 6, and the folding relief structure 6 is an arc-shaped groove provided on the top surface of the armrest cover 42, and the arc-shaped groove is arranged in a gradually decreasing depth transition from the connecting end to the distal end of the armrest cover. By fixedly installing the pivot connector 5 on both sides of the front legs 11 extending upward and bent to enclose the backrest support part 13, by providing the armrest steel frame 41 with an arc-shaped cavity structure, and symmetrically providing the arc-shaped structure 411 at the front end of the armrest steel frame 41 pivotally connected and covered outside the pivot connector 5, it is ensured that the center line of the armrest assembly 4 coincides with the connection line of the front and rear legs on the same side, so as to ensure that when the armrest assembly is stressed, the bearing center will not shift outside the chair body, and the safety hazard caused by stress-induced tilting can be effectively prevented; through the folding relief structure 6 of the arc-shaped groove on the top surface of the armrest cover 42, there is no block at the contact between the arc-shaped groove and the backrest support part 13 when the armrest assembly is lifted and folded, so as to reduce the folding thickness and thus reduce the folding space. At the same time, setting the arc-shaped groove on the armrest cover can also support, limit and provide a comfortable resting effect for the arm placed on it. The setting of the anti-slip protrusion 421 prevents slipping when grasped in a humid environment.

[0031] An optional implementation method: As Figure 2 、 4 、as shown in Figure 5, the arc-shaped structure 411 is also provided with an armrest limiting rod 8, and the armrest limiting rod 8 abuts and supports the pivot connector 5. The armrest steel frame 41 is a sheet metal integrally formed structure.

[0032] An optional implementation method: As Figure 2 、 3 shown, the two sides of the armrest cover 42 are also provided with cover plates 43, and the cover plates 43 are respectively connected to the armrest steel frame 41 and the armrest cover 42 through fasteners. The armrest cover 42 is a mold-proof EVA material foamed and integrally formed structure, which is soft, comfortable and hygienic when contacting the human body. The cover plate 43 is preferably made of plastic molding, which plays a role of covering, protecting and beautifying the connection part of the pivot shaft 7.

[0033] An optional implementation method: As Figure 2 、 3As shown in FIGS. 6 and 7, a support sheath 9 is further provided between the armrest assembly 4 and the backrest support portion 13. An accommodation cavity 91 adapted to nest the pivot connection member 5 is provided inside the support sheath 9. A limiting groove 92 is provided at one end of the outer side of the support sheath 9 to be adapted to abut and support the armrest limiting rod 8. Connecting holes 93 are symmetrically provided on both sides of the support sheath 9 corresponding to the pivot holes 52. The support sheath 9 is provided with a limiting groove 92 adapted to abut and support the armrest limiting rod 8, which plays a role in assisting the support and friction isolation of the armrest steel frame.

[0034] As Figure 1 , 3 , 7 A bathing chair including the above armrest structure further includes a seat 2 and a backrest 3 provided on the chair frame 1. Load-bearing connecting rods 14 are respectively horizontally provided between the two feet of the front feet 11 and the rear feet 12. The seat 2 is mounted on the load-bearing connecting rods 14 and is pivotally connected to the load-bearing connecting rods 14 of the rear feet in an adapted manner. The top of the rear feet 12 is supported on the rear side of the front feet 11, and hinge support structures 15 are respectively provided on both sides of the front feet 11 and the rear feet 12. The backrest 3 is connected to the middle position at the top of the backrest support portion 13. A height adjustment tube 16 is further provided at the bottom of the chair frame 1 to adjust the height of the front feet 11 and the rear feet 12. A plurality of adjustment holes are provided on the height adjustment tube 16. Elastic snap rings corresponding to the adjustment holes are provided at the bottoms of the front feet 11 and the rear feet 12. Anti-slip rubber foot pads are provided at the bottom of the height adjustment tube 16. And seat cushions and back cushions integrally formed by foaming of mildew-proof EVA materials are respectively provided on the seat 2 and the backrest 3. The bathing structure arranged as above is simple, firm, stable, has a small folding space, and has good anti-rollover performance.

[0035] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. An armrest structure, comprising a chair frame (1), the chair frame (1) being composed of a front foot (11) and a rear foot (12), characterized in that: The front leg (11) extends upward and bends to form a chair back support portion (13), and armrest assemblies (4) are symmetrically provided on both sides of the chair back support portion (13). The armrest assembly (4) is pivotally connected to the chair back support portion (13) through a pivot connection (5) and rotates up and down around the chair back support portion (13). A folding and yielding structure (6) is also provided on the armrest assembly (4); the top of the rear leg (12) is supported on the rear side of the front leg (11), and hinged support structures (15) are provided on both sides of the front leg (11) and the rear leg (12); The inner side of the pivot connection member (5) is provided with an arc structure (51) adapted to be fixed to the chair back support portion (13); the pivot connection member (5) is provided with a pivot hole (52) which is rotatably connected to the armrest assembly (4) via a pivot (7); A support sleeve (9) is further provided between the armrest assembly (4) and the chair back support portion (13), and a receiving cavity (91) is provided on the inner side of the support sleeve (9) for nesting and adapting the pivot connection member (5), and a limiting groove (92) is provided on one end of the outer side of the support sleeve (9) for adapting and abutting the armrest limiting rod (8) for support, and connecting holes (93) are symmetrically provided on both sides of the support sleeve (9) corresponding to the pivot hole (52).

2. The armrest structure according to claim 1, characterized in that: The handrail assembly (4) is composed of a handrail steel frame (41) and an handrail cover (42). The handrail steel frame (41) is configured as an arc-shaped cavity structure with an opening. A circular arc structure (411) is symmetrically provided at the front end of the handrail steel frame (41). A pivot connection cover is mounted on the outside of the pivot connection member (5). A through hole (412) corresponding to the pivot hole (52) is provided at the front end of the circular arc structure (411). A clearance opening (413) is also provided above the circular arc structure (411).

3. The armrest structure according to claim 2, characterized in that: The arc-shaped structure (411) is further provided with an armrest limiting rod (8), the armrest limiting rod (8) abuts and supports the pivot connection member (5), and the armrest steel frame (41) is a sheet metal integrally formed structure.

4. The armrest structure according to claim 2, wherein: The armrest cover (42) is configured as a cavity structure with an open front end adapted to be mounted on the outside of the armrest steel frame (41), and an anti-slip protrusion (421) is further provided on the top surface of the end of the armrest cover (42).

5. The armrest structure according to claim 4, characterized in that: Cover plates (43) are further provided on both sides of the armrest cover (42), and the cover plates (43) are respectively connected to the armrest steel frame (41) and the armrest cover (42) through fasteners. The armrest cover (42) is a mold-proof EVA material foamed integrally molded structure.

6. The armrest structure according to claim 1, wherein: The folding and yielding structure (6) is an arcuate groove provided on the top surface of the armrest cover (42), and the arcuate groove is provided in a transitional manner from deep to shallow from the connecting end to the distal end of the armrest cover.

7. A bathing chair comprising the armrest structure according to any one of claims 1-6, characterized in that: The invention also includes a seat (2) and a backrest (3) arranged on the chair frame (1), a load-bearing connecting rod (14) is respectively arranged between the two feet of the front foot (11) and the rear foot (12), the seat (2) is mounted on the load-bearing connecting rod (14) and is adapted to be pivotally connected with the load-bearing connecting rod (14), the backrest (3) is connected to the middle position of the top of the backrest support part (13), and a height adjustment tube (16) is also provided at the bottom of the chair frame (1) to adjust the height of the front foot (11) and the rear foot (12).

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