Backrest assembly

Abstract

The utility model discloses a backrest assembly which comprises a mounting plate block, and a connecting surface is arranged on the side surface, far away from a backrest part, of the mounting plate block; the backrest plate block is detachably arranged on the side surface, far away from the backrest part, of the mounting plate block; the soft adjusting part is detachably arranged on the connecting surface and can move up and down along the length of the connecting surface, and the partial side surface, close to the mounting plate, of the backrest plate is attached to the adjusting part. Due to the fact that the adjusting piece is soft, a certain buffering effect is formed after the adjusting piece is extruded, the adjusting piece is used for absorbing part of impact force and reducing the collapse feeling felt by part of a user with a large body shape when the user leans backwards, and the adjusting piece can ascend and descend along the length of the connecting face so that the adjusting piece can be moved to a target supporting point within the length range of the connecting face. When the back and waist part of the user leans against the backrest plate, dynamic and variable support can be provided for the waist so as to adapt to the requirements of the user in different activity states, so that the sitting posture comfort of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a backrest assembly. Background Art

[0002] A type of existing backrest assembly is mainly composed of two backrest plates and a support plate fixed by a connecting piece, thereby forming a backrest assembly for supporting the human back. When the human back reclines, the spring inside the connecting piece can be compressed, so that the two backrest plates fit against the back to form an adaptive support. Although it can provide support for most users, for some users with a larger body weight or who need a stronger support experience, or who need a stronger local support effect, the general backrest assembly can only achieve the basic overall support of the backrest plate. As a result, for users with a larger body weight, they are prone to feel a sense of collapse, and it is easy to cause fatigue and discomfort in the waist and back after sitting for a long time. Moreover, since the waist positions of different users on the waist support points of the backrest plate are different, such a backrest assembly cannot adjust the support up and down according to the local range of the backs of different users, which affects the comfort of the users. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art solutions, an embodiment of the utility model provides a backrest assembly.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] An embodiment of the utility model provides a backrest assembly, and the backrest assembly includes:

[0006] An installation plate, which is used for being assembled on the backrest of the seat; a connection surface is arranged on the side of the installation plate away from the backrest;

[0007] A backrest plate, which is detachably arranged on the side of the installation plate away from the backrest;

[0008] An adjusting member with a soft setting, which is detachably arranged on the connection surface and can move up and down along the length of the connection surface, and a part of the side of the backrest plate facing the installation plate is attached to the adjusting member.

[0009] As a preferred technical solution of the utility model, the connection surface is a claw surface, and a plush surface for attaching to the claw surface is arranged on the side of the adjusting member; or, a claw surface is arranged on the side of the adjusting member, and the connection surface is a plush surface for attaching to the claw surface.

[0010] As a preferred technical solution of the present utility model, the connecting surface is a magnetic adsorption plate; a magnet or a sheet material with opposite magnetic poles is arranged on the side surface of the adjusting member for magnetic adsorption on the surface of the magnetic adsorption plate; or, the connecting surface is a magnet surface or the sheet material with opposite magnetic poles, and a magnetic adsorption portion for magnetic adsorption on the magnet surface or the sheet material with opposite magnetic poles is arranged on the side surface of the adjusting member.

[0011] As a preferred technical solution of the present utility model, the adjusting member is one of a cylindrical shape, a cut cylindrical shape, a cut spherical shape or a prismatic shape.

[0012] As a preferred technical solution of the present utility model, at least two backrest plates are symmetrically arranged.

[0013] As a preferred technical solution of the present utility model, the side surface of each backrest plate facing the user is an arc surface adapted to the user's waist and back.

[0014] As a preferred technical solution of the present utility model, a plurality of positioning holes penetrate through the mounting plate; a connecting seat is arranged on one side of the backrest plate facing the mounting plate, and a plurality of positioning columns respectively inserted into the positioning holes are arranged on the connecting seat;

[0015] The backrest assembly further includes a locking buckle for locking the plurality of positioning columns respectively inserted into the positioning holes.

[0016] As a preferred technical solution of the present utility model, a groove is recessed on the side wall of each positioning column; the locking buckle is formed with a buckle groove arranged in an open manner, and a buckling portion for buckling on the groove is arranged on the groove wall of the buckle groove.

[0017] As a preferred technical solution of the present utility model, a plurality of ventilation holes penetrate through the backrest plate.

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

[0019] Since the adjusting member is softly arranged, a certain buffering effect is formed after the adjusting member is extruded, which is used to absorb part of the impact force and reduce the sense of collapse felt by some users with a larger body size when reclining. The adjusting member can move up and down along the length of the connecting surface to move the adjusting member to the target support point within the length range of the connecting surface. With this setting, according to the user's sitting posture and waist support point, by adjusting the movement of the adjusting member on the connecting surface to a position where it can support the user, the back and waist of the user can be provided with dynamic and variable support when leaning on the backrest plate, so as to meet the needs of the user in different activity states, thereby improving the sitting comfort of the user. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of an embodiment of the utility model.

[0022] Figure 2 yes Figure 1 Top view of the .

[0023] Figure 3 It is a structural explosion diagram of an embodiment of the utility model.

[0024] Figure 4 It is a structural diagram of the mounting plate and the adjusting member of the embodiment of the utility model.

[0025] Figure 5 It is a structural diagram of the second adjusting member of the embodiment of the utility model.

[0026] Figure 6 It is a structural diagram of the third adjusting member of the embodiment of the utility model.

[0027] Figure 7 yes Figure 1 Another structural diagram from another perspective.

[0028] Figure 8 yes Figure 7 A local enlarged view of point A in the figure.

[0029] Figure 9 It is a structural diagram of a locking buckle according to an embodiment of the utility model.

[0030] Figure 10 It is a schematic structural diagram of a locking buckle locking positioning column in an embodiment of the utility model.

[0031] Numbers in the figure

[0032] 1. Installation plate; 11. Connection surface; 12. Positioning hole;

[0033] 2. Backrest plate; 21. Arc surface; 22. Connecting seat; 221. Positioning column; 222. Groove; 23. Ventilation hole;

[0034] 3. Adjustment part; 31. Plush surface;

[0035] 4. Locking buckle; 41. Buckle slot; 42. Buckling part. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element.

[0039] When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0043] In order to solve the technical problems existing in the backrest assembly of the existing seat, that is, users with a relatively large body weight are prone to a sense of collapse after sitting for a long time, which is likely to cause back fatigue and discomfort, and it is impossible to adjust the support up and down according to the local range of the back of different users, thus affecting the comfort of the user; for this reason, the embodiment of the present utility model provides a backrest assembly.

[0044] The following will elaborate in detail on the specific structure of the backrest assembly provided by the embodiment of the present utility model. According to Figure 1-10 as shown in the attached drawings, the specific structure of the backrest assembly includes a mounting plate 1, a backrest plate 2, and a soft adjustment member 3.

[0045] The mounting plate 1 is used for assembling on the backrest of the seat; a connecting surface 11 is provided on the side surface of the mounting plate 1 away from the backrest.

[0046] Specifically, the backrest assembly of the present utility model can be placed on the backrest of any seat. Only need to assemble or attach the back surface of the mounting plate 1 to the backrest of the seat, and use the mounting plate 1 to support the backrest plate 2, so that the entire backrest assembly stands vertically. With this setting, when the user sits on the seat and reclines backward, stable support for the user can be achieved.

[0047] According to Figure 1 and Figure 2 As shown, the backrest plate 2 is detachably arranged on the side of the mounting plate 1 away from the backrest.

[0048] Specifically, the backrest plate 2 is used to support the back and waist of the user, that is, when the user sits on the seat and reclines backward, it has a supporting effect through the backrest plate 2; in order to improve the convenience of disassembling and assembling the backrest plate 2, so as to facilitate the replacement of different types of backrest plates 2, therefore when disassembling the backrest plate 2, only need to disassemble the backrest plate 2 from the side of the mounting plate 1 away from the backrest, and then the whole backrest plate 2 can be taken out; conversely, when assembling the backrest plate 2, only need to align the backrest plate 2 with the mounting position on the side of the mounting plate 1 away from the backrest, and then assemble the backrest plate 2 to the mounting position.

[0049] It should be added that according to the needs of the user, the position of the backrest plate 2 assembled on the mounting plate 1 can be adjusted to provide a more comfortable sitting posture experience for the user.

[0050] According to Figure 2 and Figure 3 As shown, the adjusting member 3 is detachably arranged on the connecting surface 11 and can move up and down along the length of the connecting surface 11, and a part of the side surface of the backrest plate 2 leaning against the mounting plate 1 is attached to the adjusting member 3.

[0051] Specifically, in order to prevent some users with larger body types from feeling a sense of collapse when using the backrest assembly, this adjusting member 3 is arranged between the backrest plate 2 and the mounting plate 1. And because the adjusting member 3 is soft, when the user sits down and reclines until it fits with the backrest plate 2, the adjusting member 3 is squeezed to form a certain buffering effect, which can absorb part of the impact force, reduce the adverse effects of part of the impact force on the user's back and spine, and relieve the sense of collapse felt by some users with larger body types when using the backrest assembly; in addition, when the user sits down and reclines and squeezes the adjusting member 3, as the pressure increases, the adjusting member 3 is compressed, so that the adjusting member 3 can deform to a certain extent according to the contour of the user's back, so as to more adaptively fit the back and waist of the user, further improving the comfort of the user and avoiding the back and waist fatigue discomfort caused by the user sitting for a long time.

[0052] It should be noted that since the adjusting member 3 can move up and down along the length of the connecting surface 11, that is, an external force for ascending or descending can be applied to the adjusting member 3 to move the adjusting member 3 within the length range of the connecting surface 11 to the target support point. With this setting, according to the sitting posture of the user and the lumbar support point, by adjusting the movement of the adjusting member 3 on the connecting surface 11 to a position where it can support the user, the back and waist of the user can be provided with dynamic and variable support when leaning against the backrest plate 2, so as to adapt to the needs of the user in different activity states, thereby improving the sitting comfort of the user.

[0053] It should also be noted that the adjusting member 3 in the embodiment of the present invention is not limited to a single one, that is, multiple adjusting members 3 can be provided. Each adjusting member 3 is detachably provided on the connecting surface 11 and can move up and down along the length of the connecting surface 11. The specific number is not limited here.

[0054] The connection method between the side surface of the adjusting member 3 and the connecting surface 11 in the embodiment of the present invention includes the following:

[0055] According to Figure 4 As shown, in one embodiment, the connecting surface 11 is a hook surface, and the side surface of the adjusting member 3 is provided with a plush surface 31 for attaching to the hook surface.

[0056] It can be understood that the plush surface 31 and the hook surface are attached and connected in the way of "Velcro"; specifically, the plush surface 31 is a woven surface with villous fibers woven on it. Correspondingly, the hook surface is a woven surface of a fabric with multiple small hooks woven on it. Since each small hook is made of polyester fiber material, when the plush surface 31 and the hook surface are fitted together and a certain pushing force is applied to both of them, the multiple small hooks made of polyester fiber material penetrate the villous fibers and adhere to them tightly. Since the tip of the hook-shaped fiber is a hook-shaped structure, it can firmly hold the villous fibers, thereby improving the firmness of the two when connected, so that the adjusting member 3 can be assembled on the connecting surface 11.

[0057] When disassembling or moving the adjusting member 3, only a certain force or pushing force needs to be applied to the adjusting member 3 to separate the part where the villous fibers of the plush surface 31 are buckled with the multiple small hooks of the hook surface, and then the adjusting member 3 can be separated from the surface of the connecting surface 11. With this setting, it is convenient to fine-tune the position of the adjusting member 3 or disassemble it without other auxiliary tools.

[0058] Or, the side surface of the adjusting member 3 is provided with a hook surface, and the connecting surface 11 is a plush surface 31 for attaching to the hook surface. The above two setting methods are not limited here.

[0059] In another embodiment, the connecting surface 11 is a magnetic adsorption plate; the side surface of the adjusting member 3 is provided with a magnet or a sheet material with opposite magnetic poles for magnetic adsorption on the surface of the magnetic adsorption plate.

[0060] Specifically, when the magnetic attraction plate contacts with the magnet of the adjusting member 3 or the sheet material with opposite magnetic poles, due to the certain magnetism of the magnet or the sheet material with opposite magnetic poles, when it attracts the magnetic poles on the surface of the magnetic attraction plate, the side surface of the adjusting member 3 can be attached to the surface of the magnetic attraction plate; when disassembling or moving the adjusting member 3, only a force opposite to or perpendicular to the magnetic force direction needs to be applied, so that the magnet or magnetic pole sheet on the adjusting member 3 no longer interacts with the magnetic field of the magnetic attraction plate or pushes the adjusting member 3 to move within the length range of the magnetic attraction plate, thus facilitating the disassembly or position adjustment of the adjusting member 3.

[0061] Or, the connecting surface 11 is a magnet surface or a plate with opposite magnetic poles, and a magnetic attraction part for magnetically adsorbing to the magnet surface or the plate with opposite magnetic poles is arranged on the side surface of the adjusting member 3. The above two setting methods are not limited herein.

[0062] Based on the above two embodiments, it can be seen that the connection between the side surface of the adjusting member 3 and the connecting surface 11 can be realized through the two setting methods of the side surface of the adjusting member 3 and the connecting surface 11, and when adjusting the position of the adjusting member 3, only an external force upward or downward needs to be applied to drive the adjusting member 3 to move to the target support point.

[0063] According to Figure 4-Figure 6 as shown, it can be understood that the adjusting member 3 of the embodiment of the present invention is one of a cylindrical shape, a cut cylindrical shape, a cut spherical shape or a prism shape.

[0064] For example, if the adjusting member 3 is cylindrical, correspondingly, the plush surface 31 is formed on the outer peripheral side of the adjusting member 3. With this setting, when pushing the adjusting member 3, the adjusting member 3 can roll, so that the adjusting member 3 can stably stay at different positions during the rolling process, meeting the experience needs of users.

[0065] According to Figure 5 and Figure 6 as shown, it should be noted that if the adjusting member 3 is in a cut cylindrical shape or a cut spherical shape, the plush surface 31, the magnet or the sheet material with opposite magnetic poles are formed on the cut surface of the adjusting member 3; if the adjusting member 3 is in a prism shape, the plush surface 31, the magnet or the sheet material with opposite magnetic poles are formed on the straight surface outside the adjusting member 3. The specific shape of the adjusting member 3 is not limited herein.

[0066] In some specific embodiments, at least two backrest plates 2 are symmetrically arranged. Specifically, two symmetric backrest plates 2 can effectively support the user's back, provide good support points for the spine, and at the same time play a role in balancing and dispersing the back pressure. Therefore, whether sitting in the center or on the outer side of the backrest, uniform support can be obtained, avoiding the situation of excessive local pressure, and providing uniform and appropriate support for the back at different angles and intensities, which helps to reduce the pressure on the waist and back, thereby improving the comfort of the user in the sitting position.

[0067] According to Figure 2 As shown, in some specific embodiments, the side of each backrest plate 2 facing the user is an arc surface 21 adapted to the user's back.

[0068] Specifically, since the human back generally has a certain curvature, by setting the side of each backrest plate 2 facing the user as an arc surface 21, it is used to adapt to the natural curvature of the human back and waist, evenly disperse the pressure to the entire back, thereby reducing the lateral pressure on the spine, improving the comfort of the user in the long-term sitting position, and relieving the user's back and waist pain.

[0069] According to Figure 7 and Figure 8 As shown, in some specific embodiments, the mounting plate 1 is penetrated with a plurality of positioning holes 12; a connecting seat 22 is provided on the side of the backrest plate facing the mounting plate 1, and the connecting seat 22 is provided with a plurality of positioning posts 221 respectively used for inserting into the respective positioning holes 12; the backrest assembly further includes a locking buckle 4 for locking the plurality of positioning posts 221 respectively inserted into the respective positioning holes 12.

[0070] Specifically, in order to improve the convenience of assembling or disassembling each backrest plate, when each backrest plate needs to be assembled to the mounting plate 1, only the plurality of positioning posts 221 provided on the connecting seat 22 need to be respectively inserted into the plurality of positioning holes 12 formed in the mounting plate 1, thereby preventing the lifting and shaking of each backrest plate. Subsequently, the locking buckle 4 is used to lock the respective positioning posts 221 inserted into the respective positioning holes 12 to prevent each backrest plate from falling off the mounting plate 1 and improve the stability of each backrest plate; conversely, when disassembling each backrest plate from the mounting plate 1, only the locking buckle 4 needs to be disassembled and removed from the respective positioning posts 221 inserted into the respective positioning holes 12. At this time, since the respective positioning posts 221 inserted into the respective positioning holes 12 cannot be locked, until the respective positioning posts 221 are disengaged from the respective positioning holes 12, each backrest plate can be disassembled and removed from the mounting plate 1. With this setting, it is convenient for the user to replace or disassemble and assemble each backrest plate.

[0071] According to Figure 8-Figure 10As shown, in a further embodiment, a groove 222 is recessed in the side wall of each positioning post 221; the locking buckle 4 is formed with a buckle groove 41 arranged in an open manner, and a buckling portion 42 for buckling on the groove 222 is arranged on the groove wall of the buckle groove 41.

[0072] Specifically, after each positioning post 221 is inserted into each positioning hole 12 respectively, the buckling portion 42 of the locking buckle 4 is used to buckle in the groove 222 of each positioning post 221 inserted into each positioning hole 12. Subsequently, the entire locking buckle 4 is pushed to move until the ends of each positioning post 221 after being inserted into each positioning hole 12 slide into the buckle groove 41 through the opening. The buckling portion 42 of the locking buckle 4 is used to lock each positioning post 221, so as to fix the backrest plate on the mounting plate 1; conversely, when disassembling the backrest plate, by pushing the locking buckle 4 to move, the ends of each positioning post 221 after being inserted into each positioning hole 12 are disengaged from the buckle groove 41 through the opening until the entire locking buckle 4 is taken out. At this time, since each positioning post 221 inserted into each positioning hole 12 cannot be locked, each positioning post 221 can be disengaged from the positioning hole 12, and then the entire backrest plate can be disassembled and taken out from the mounting plate 1.

[0073] According to Figure 1 As shown, in some specific embodiments, a plurality of ventilation holes 23 penetrate through the backrest plate 2. With this arrangement, the air permeability of the seat can be effectively improved through the plurality of ventilation holes 23. Especially in a hot environment, the air circulation is facilitated through each ventilation hole 23, and the heat accumulation on the surface of the backrest plate is reduced, thereby improving the comfort of the user when sitting.

[0074] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A backrest assembly, characterized in that, The backrest assembly includes: a mounting plate for being assembled to the backrest of the seat; a connection surface is provided on the side surface of the mounting plate away from the backrest; a backrest plate detachably provided on the side surface of the mounting plate away from the backrest; a soft adjustment member detachably provided on the connection surface and capable of lifting and moving along the length of the connection surface, and a partial side surface of the backrest plate facing the mounting plate is attached to the adjustment member.

2. The backrest assembly according to claim 1, wherein, The connection surface is a claw surface, and a plush surface for attaching to the claw surface is provided on the side surface of the adjustment member; or, a claw surface is provided on the side surface of the adjustment member, and the connection surface is a plush surface for attaching to the claw surface.

3. The backrest assembly according to claim 1, wherein, The connection surface is a magnetic attraction plate; a magnet or a sheet material with opposite magnetic poles for magnetically attracting to the surface of the magnetic attraction plate is provided on the side surface of the adjustment member; or, the connection surface is a magnet surface or the sheet material with opposite magnetic poles, and a magnetic attraction portion for magnetically attracting to the magnet surface or the sheet material with opposite magnetic poles is provided on the side surface of the adjustment member.

4. The backrest assembly according to any one of claims 1-3, characterized in that, The adjustment member is in one of a cylindrical shape, a cut cylindrical shape, a cut spherical shape or a prismatic shape.

5. The backrest assembly according to claim 1, characterized in that, At least two backrest plates are symmetrically arranged.

6. The backrest assembly according to claim 5, characterized in that, The side surface of each backrest plate facing the user is an arc surface adapted to the user's waist and back.

7. The backrest assembly according to claim 1, characterized in that, A plurality of positioning holes penetrate through the mounting plate; a connection seat is provided on one side of the backrest plate facing the mounting plate, and a plurality of positioning columns for being respectively inserted into the positioning holes are provided on the connection seat; The backrest assembly further includes a locking buckle for locking the plurality of positioning columns respectively inserted into the positioning holes.

8. The backrest assembly according to claim 7, characterized in that, A groove is recessed in the side wall of each positioning column; the locking buckle is formed with a buckle groove arranged in an open manner, and a buckling portion for buckling on the groove is provided on the groove wall of the buckle groove.

9. The backrest assembly according to claim 1, wherein, A plurality of ventilation holes penetrate through the backrest plate.

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