Modular seat backrest

Abstract

The utility model provides a modular seat backrest which comprises a connecting piece and two supporting rods, the end of the connecting piece is connected with a seat plate, the two supporting rods are detachably installed on the connecting piece, and a neck supporting piece used for supporting the neck and relaxing neck muscles is detachably arranged between the two supporting rods in a sliding mode. A waist supporting piece used for supporting the waist and relaxing muscles of the waist is detachably arranged between the two supporting rods and below the neck supporting piece in a sliding mode, and a plurality of fixing assemblies used for limiting sliding of the neck supporting piece and the waist supporting piece are arranged on the two supporting rods. According to the modular seat backrest, each component can be detached into a smaller component, so that a smaller space volume can be occupied in the transportation process, and the transportation cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of seat component design, in particular to a modular seat backrest. Background Art

[0002] A seat back is usually installed on the seat, which can provide support and comfort, and provide support for the neck and waist for people who sit for a long time.

[0003] The prior art, such as the content disclosed in the utility model patent with publication number CN220369741U and the name of a chair back, includes a chair back frame, on the inner side of which a connecting plate is fixedly installed; the back of the connecting plate is provided with a longitudinal slide groove, and the front part is provided with a longitudinal long hole passing through the longitudinal slide groove and a longitudinally arranged multi-gear slot; a slider, which can be longitudinally slidably arranged in the longitudinal slide groove and is provided with a connecting part extending from the longitudinal long hole.

[0004] This type of product takes up a very large volume during transportation because it cannot be disassembled, resulting in increased transportation costs. Although this type of chair back can support the waist, it cannot further relax the waist or neck, and cannot relieve fatigue caused by long-term sitting. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a modular seat backrest, which is used to solve the technical problems that the existing seat backrest has high transportation costs and cannot relieve fatigue caused by long-term sitting when used.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A modular seat back comprises a connecting piece whose ends are connected to a seat plate and two support rods, wherein the two support rods are detachably mounted on the connecting piece, a neck support piece for supporting the neck and relaxing the neck muscles is detachably provided between the two support rods, a waist support piece for supporting the waist and relaxing the waist muscles is detachably provided between the two support rods and below the neck support piece, and a plurality of fixing components for limiting the sliding of the neck support piece and the waist support piece are provided on the two support rods.

[0008] Working principle:

[0009] The device is a modular seat backrest, which is mainly used for being installed on a seat and for people to lean on.

[0010] During installation, first connect the connecting piece to the seat plate of the seat. After the installation is completed, install the two support rods on both sides of the top of the connecting piece respectively, then slide the neck support piece between the two support rods, and slide the waist support piece between the two support rods and below the neck support piece. After the installation is completed, adjust the neck support piece and the waist support piece according to the height and body shape of the user respectively. After adjusting to the appropriate position, fix the neck support piece and the waist support piece respectively through the fixing assembly.

[0011] When relaxation is needed, the user only needs to fit the neck and waist to the neck support and waist support respectively, and then move them up and down and forward and backward slightly, and relax the neck and waist muscles respectively through the neck support and waist support.

[0012] Beneficial effects obtained:

[0013] First, the two support rods are detachably mounted on the connecting parts, and the neck support part and the waist support part can be detachably installed between the two support rods. After disassembly, they can be further divided into multiple parts for placement, which reduces the occupied space and effectively reduces the transportation cost.

[0014] Second, a neck support is provided to effectively support the neck of the user and relax the neck muscles of the user when necessary, thereby improving the comfort during use.

[0015] Third, a lumbar support is provided to effectively support the user's waist and relax the user's waist muscles when necessary, thereby further improving the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the overall structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0019] Figure 4 This is a diagram of the connection relationship between the fixing bolt and the second limit block.

[0020] In the above drawings: 1. connecting member; 2. support rod; 3. first support plate; 4. first fixing rod; 5. first sliding hole; 6. second support plate; 7. second fixing rod; 8. second sliding hole; 9. first limit block; 10. second limit block; 11. fixing bolt; 12. first fixing groove; 13. second fixing groove; 14. rotating shaft; 15. rubber inner sleeve; 16. foam outer sleeve; 17. protrusion; 18. reinforcing frame. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] Reference Figure 1 to Figure 4 The present application is a modular seat backrest, comprising a connecting member 1 and two support rods 2 connected to the seat plate at the ends, the two support rods 2 being detachably mounted on the connecting member 1 by bolts arranged at the bottom, the support rods 2 also being detachably connected by mortise and tenon joints, a neck support member for supporting the neck and relaxing the neck muscles being slidably and detachably provided between the two support rods 2, the neck support member comprising two arc-shaped first support plates 3, two first fixing rods 4 and a plurality of relaxation shafts, the two first support plates 3 being relatively arranged between the two support rods 2, the two support rods 2 being provided with long first sliding holes 5, the two first fixing rods 4 being respectively slidably penetrated through the top and bottom of the two first support plates 3, and the ends of the two first fixing rods 4 both pass through the two first support plates 3 and slide into the first sliding holes 5 on the two support rods 2, and the plurality of relaxation shafts being rotatably arranged between the two first support plates 3. Such an arrangement can effectively make the two first support plates 3 slide and install in the first sliding holes 5 on both sides through the two first fixing rods 4, and relax the neck through multiple relaxation shafts between the two first support plates 3, the relaxation shaft includes a rotating shaft 14, a rubber inner sleeve 15 and a foam outer sleeve 16, the rubber inner sleeve 15 is fixedly sleeved on the outer wall of the rotating shaft 14, the foam outer sleeve 16 is fixedly sleeved on the outer wall of the rubber inner sleeve 15, and a plurality of protrusions 17 are provided on the outer wall of the foam outer sleeve 16. By evenly rotating and installing multiple rotating shafts 14 between the two first support plates 3 along the curvature of the two first support plates 3, the rubber inner sleeve 15 and the foam outer sleeve 16 can increase the overall elasticity of the relaxation shaft, better relax the neck muscles of the user, and the protrusions 17 can further squeeze and relax the muscles.

[0024] like Figure 2 and Figure 4As shown, the fixing assembly includes two rectangular first limit blocks 9, two rectangular second limit blocks 10 and two fixing bolts 11 with top caps, and the inner walls on both sides of the two first sliding holes 5 are respectively provided with a plurality of first fixing grooves 12 corresponding to each other. The two first limit blocks 9 are respectively fixedly connected to the ends of the two first fixing rods 4 extending into one of the first sliding holes 5 and are clamped in two of the first fixing grooves 12. The two fixing bolts 11 are respectively threadedly penetrated through the ends of the two first fixing rods 4 away from the two first limit blocks 9, and the two second limit blocks 10 are respectively threadedly sleeved in a section between the two fixing bolts 11 and the two first fixing rods 4 and are clamped in two of the first fixing grooves 12 of the other first sliding hole 5. Such an arrangement can be achieved by clamping the two first limiting blocks 9 with the two first fixing grooves 12 on the same side, and then clamping the two first fixing grooves 12 on the other side with the two fixing bolts 11 and the two second limiting blocks 10, and screwing the two fixing bolts 11 with the ends of the two first fixing rods 4 respectively. The ends of the two first fixing rods 4 are provided with threaded grooves, which are connected with the fixing bolts 11 through the threaded grooves, so that the two first support plates 3 are restricted between the two support rods 2 to complete the fixation.

[0025] like Figure 1 , Figure 2 As shown, a waist support for supporting the waist and relaxing the waist muscles is provided between the two support rods 2 and below the neck support member, and the waist support member includes two arc-shaped second support plates 6, two second fixing rods 7 and a plurality of relaxation shafts. The two second support plates 6 are relatively arranged between the two support rods 2, and the two support rods 2 are provided with long strip-shaped second sliding holes 8. The two second fixing rods 7 are respectively slidably penetrated through the top and bottom of the two second support plates 6, and the ends of the two second fixing rods 7 pass through the two second support plates 6 and slide into the second sliding holes 8 on the two support rods 2. The plurality of relaxation shafts are rotatably arranged between the two second support plates 6. This arrangement can effectively make the two second support plates 6 slide and install in the second sliding holes 8 on both sides through the two second fixing rods 7, and relax the neck through the plurality of relaxation shafts between the two second support plates 6. The relaxation shaft structure is the same as the above-mentioned relaxation shaft structure, and will not be described in detail.

[0026] like Figure 4As shown, the fixing assembly includes two rectangular first limit blocks 9, two rectangular second limit blocks 10 and two fixing bolts 11 with top caps. The inner walls on both sides of the two second sliding holes 8 are respectively provided with a plurality of second fixing grooves 13 corresponding to each other. The two first limit blocks 9 are respectively fixedly connected to the ends of the two second fixing rods 7 extending into one of the second sliding holes 8 and are clamped in two of the second fixing grooves 13. The two fixing bolts 11 are respectively threadedly penetrated through the ends of the two second fixing rods 7 away from the two first limit blocks 9. The ends of the two second fixing rods 7 are provided with thread grooves and are connected to the fixing bolts 11 through the thread grooves. The two second limit blocks 10 are respectively threadedly sleeved in a section between the two fixing bolts 11 and the two first fixing rods 4 and are clamped in two of the second fixing grooves 13 of the other second sliding hole 8. This positioning method is the same as the positioning method of the neck support and will not be elaborated on.

[0027] like Figure 1 and Figure 2 As shown, a reinforcing frame 18 is detachably provided on the side walls of the two support rods 2 by bolts, and the bottom of the reinforcing frame 18 is also detachably connected to the connecting member 1 by bolts. The reinforcing frame 18 can effectively increase the overall strength of the chair back.

[0028] Working principle:

[0029] During installation, first connect the connecting piece 1 to the seat plate of the chair, and after the installation is completed, install the two support rods 2 on both sides of the top of the connecting piece 1 respectively. After the installation is completed, fix the reinforcing frame 18 to the side walls of the two support rods 2 by bolts. Then move the multiple relaxation axes between the two first support plates 3 to between the two support rods 2, and slide through the top and bottom of the two first support plates 3 through the two first fixing rods 4, and extend into the first sliding hole 5 to slide. After sliding to the appropriate position, further make the first limit blocks 9 at the ends of the two first fixing rods 4 clamped between the two first fixing grooves 12 in the first sliding hole 5, and install the fixing bolts 11 and the second limit plate on the side wall of the other support rod 2 and make the fixing bolts 11 and the first fixing rod 4 screwed, so that the two second limit blocks 10 are clamped and fixed with the corresponding first fixing grooves 12; then, the two The multiple relaxation axes between the second support plates 6 are moved between the two second sliding holes 8 on the two support rods 2, and the two second fixing rods 7 slide through the top and bottom of the two second support plates 6 respectively, and extend into the second sliding holes 8 to slide. After sliding to a suitable position, the first limit blocks 9 at the ends of the two second fixing rods 7 are further clamped between the two second fixing grooves 13 in the second sliding holes 8, and the fixing bolts 11 and the second limit plates are installed on the side wall of the other support rod 2 and the fixing bolts 11 are screwed to the second fixing rods 7, so that the two second limit blocks 10 are clamped and fixed to the corresponding second fixing grooves 13.

[0030] When relaxation is needed, the user only needs to fit the neck and waist to the relaxation axis between the first support plate 3 and the relaxation axis between the second support plate 6 respectively, and then move slightly up and down and forward and backward to relax the neck and waist muscles respectively through the corresponding relaxation axes.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A modular seat back, characterized in that: The invention comprises a connecting member (1) whose ends are connected to a seat plate and two supporting rods (2), wherein the two supporting rods (2) are detachably mounted on the connecting member (1), a neck supporting member for supporting the neck and relaxing the neck muscles is slidably and detachably provided between the two supporting rods (2), a waist supporting member for supporting the waist and relaxing the waist muscles is slidably and detachably provided between the two supporting rods (2) and below the neck supporting member, and a plurality of fixing components for limiting the sliding of the neck supporting member and the waist supporting member are provided on the two supporting rods (2).

2. A modular seat back according to claim 1, characterized in that: The neck support component comprises two arc-shaped first support plates (3), two first fixing rods (4) and a plurality of relaxation shafts. The two first support plates (3) are arranged between the two support rods (2) in a relative manner. The two support rods (2) are each provided with a long first sliding hole (5). The two first fixing rods (4) are respectively slidably penetrated through the top and bottom of the two first support plates (3), and the ends of the two first fixing rods (4) pass through the two first support plates (3) and slide into the first sliding holes (5) on the two support rods (2). The plurality of relaxation shafts are rotatably arranged between the two first support plates (3).

3. The modular seat back according to claim 1, characterized in that: The waist support member comprises two arc-shaped second support plates (6), two second fixing rods (7) and a plurality of relaxation shafts. The two second support plates (6) are arranged between the two support rods (2) in a relative manner. The two support rods (2) are provided with long second sliding holes (8). The two second fixing rods (7) are respectively slidably penetrated through the top and bottom of the two second support plates (6). The ends of the two second fixing rods (7) pass through the two second support plates (6) and slide into the second sliding holes (8) on the two support rods (2). The plurality of relaxation shafts are rotatably arranged between the two second support plates (6).

4. The modular seat back according to claim 2, characterized in that: The fixing assembly comprises two rectangular first limit blocks (9), two rectangular second limit blocks (10) and two fixing bolts (11) with top caps. The inner walls on both sides of the two first sliding holes (5) are respectively provided with a plurality of first fixing grooves (12) corresponding to each other. The two first limit blocks (9) are respectively fixedly connected to one end of the two first fixing rods (4) and clamped in two of the first fixing grooves (12). The two fixing bolts (11) are respectively threadedly inserted into the ends of the two first fixing rods (4) away from the two first limit blocks (9). The two second limit blocks (10) are respectively threadedly sleeved in a section between the two fixing bolts (11) and the two first fixing rods (4) and clamped in two of the first fixing grooves (12) of the other first sliding hole (5).

5. The modular seat back according to claim 3, characterized in that: The fixing assembly comprises two rectangular first limit blocks (9), two rectangular second limit blocks (10) and two fixing bolts (11) with top caps. The inner walls on both sides of the two second sliding holes (8) are respectively provided with a plurality of second fixing grooves (13) corresponding to each other. The two first limit blocks (9) are respectively fixedly connected to one end of the two second fixing rods (7) and clamped in two of the second fixing grooves (13). The two fixing bolts (11) are respectively threadedly inserted into the ends of the two second fixing rods (7) away from the two first limit blocks (9). The two second limit blocks (10) are respectively threadedly sleeved in a section between the two fixing bolts (11) and the two first fixing rods (4) and clamped in two of the second fixing grooves (13) of the other second sliding hole (8).

6. A modular seat back according to claim 2 or claim 3, characterized in that: The relaxation shaft comprises a rotating shaft (14), a rubber inner sleeve (15) and a foam outer sleeve (16); the rubber inner sleeve (15) is fixedly sleeved on the outer wall of the rotating shaft (14); the foam outer sleeve (16) is fixedly sleeved on the outer wall of the rubber inner sleeve (15); and a plurality of protrusions (17) are provided on the outer wall of the foam outer sleeve (16).

7. The modular seat back according to claim 1, characterized in that: A reinforcing frame (18) is detachably provided on the side walls of the two support rods (2), and the bottom of the reinforcing frame (18) is detachably connected to the connecting piece (1).

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