Sponge back cushion applicable to multiple scenes

Abstract

The utility model relates to a sponge back cushion applicable to multiple scenes, which comprises a back plate, the front end of the back plate is wrapped with a flexible cushion, the rear end face of the back plate is provided with a cylindrical groove and a first limiting groove, the front end of the first limiting groove is provided with a second limiting groove, the back cushion is provided with a support frame and a bandage in a matched manner, and the bandage is provided with a threaded block. The outer side wall of the threaded block is connected with the inner side wall of the cylindrical groove in a threaded fit mode, a buckling mechanism is arranged on the supporting frame, the buckling mechanism is matched with the first limiting groove and the second limiting groove to enable the supporting frame to be installed on the backup plate in a buckling mode, and a quick disassembling mechanism is arranged on the backup plate corresponding to the supporting frame. The back cushion can be installed in two modes, one mode is that the back cushion is bound on the seat through the binding belt, the other mode is that the back cushion can be erected on the seat through the supporting frame, the defects of the binding belt can be overcome through the arrangement of the supporting frame, and the back cushion can be used even on a bench with multiple people or a thick sofa.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of back cushion, especially a sponge back cushion suitable for multiple scenes. BACKGROUND

[0002] In modern society, many people sit for a long time in daily life, in order to prevent waist fatigue or relieve waist pain, many people will buy a back cushion to support the waist.

[0003] At present, there is a back cushion that can be tied on the back of a chair on the market. The advantage of this back cushion is that it can be combined with multiple chairs. When the user wants to sit down somewhere else, he can simply move a back cushion. However, most of the tying type back cushions on the market can only be used on single seat chairs. If it is a multi-seat bench or a relatively thick sofa, the binding belt is not enough to tie the back cushion to the chair or sofa. UTILITY MODEL CONTENTS

[0004] The utility model provides a sponge back cushion suitable for multiple scenes, which solves the above problems in the prior art.

[0005] The technical scheme of the utility model is as follows: a sponge back cushion suitable for multiple scenes, comprising a back plate, the front end of the back plate is wrapped with a flexible pad, the rear end face of the back plate is provided with a cylindrical groove and a first limiting groove, the front end of the first limiting groove is provided with a second limiting groove, the opening area of the first limiting groove is smaller than that of the second limiting groove, the back cushion is provided with a support frame and a binding belt, a threaded block is arranged on the binding belt, the outer side wall of the threaded block and the inner side wall of the cylindrical groove are connected through thread cooperation, a buckling mechanism is arranged on the support frame, the buckling mechanism is matched with the first limiting groove and the second limiting groove to enable the support frame to be installed on the back plate in a buckling manner, and a quick release mechanism is arranged on the back plate for the support frame.

[0006] The utility model is further provided as follows: the buckling mechanism comprises a fixed plate arranged on the support frame, a connecting strip is fixedly arranged at the front end of the fixed plate, a clamping block is fixedly arranged at the front end of the connecting strip, and the rear end face of the clamping block is used for abutting against the rear end face of the second limiting groove.

[0007] The utility model is further provided as follows: a first chamfer is formed between the front end of the clamping block and the end face of the clamping block towards the side wall of the second limiting groove, the quick release mechanism comprises a folding frame, the opening of the folding frame is rearward, the opening of the folding frame is used for accommodating the clamping block, a second chamfer is formed between the inner side wall of the folding frame and the rear end face, the folding frame is slidingly arranged in the second limiting groove, and an elastic pushing mechanism for pushing the folding frame forward is arranged in the second limiting groove.

[0008] The utility model further sets up: the front end of the backrest is provided with operation hole, the rear end of operation hole is linked with the front end of second limit groove, the button is slidably arranged in the operation hole, the rear end of button extends into second limit groove and is connected with the front end of folding frame.

[0009] The utility model further sets up: the sidewall of second limit groove is provided with sliding slot, the elastic pushing mechanism includes sliding plate and elastic pushing part, the sliding plate is fixedly arranged on the outside wall of folding frame and is slidably arranged in the sliding slot, the elastic pushing part is arranged between the rear end of sliding slot and the rear end of sliding plate.

[0010] The utility model further sets up: the rear end surface of backrest is sequentially provided with cylindrical groove and first limit groove from back to front, the first limit groove is in the opening range of cylindrical groove, the opening area of first limit groove is less than the opening area of cylindrical groove, the first limit groove is polygonal groove, the middle part of threaded block is through and is provided with rotating connection groove on the inner side wall, the rotating connection groove is rotatably connected with fixed block, the fixed block is fixedly connected with the bandage, the rear end surface of threaded block is rotatably provided with limit block, the limit block is fixedly connected with fixed block, the cross section of limit block is consistent with the cross section of first limit groove.

[0011] The utility model further sets up: the flexible pad is polyurethane sponge.

[0012] In conclusion, the utility model has the advantages of:

[0013] 1、 through the structure, the cushion can have two installation modes, one is through the bandage and is bound on the seat, another is that the support frame is used to make the cushion can be supported on the seat, the setting of support frame can make up the shortage of bandage, even in the long chair of many people or the sofa that is relatively thick can use.

[0014] 2、 the user can push the button to the back, make folding frame and push the clamping block to the position that can pass through first limit groove, so that the support frame can be removed from the backrest.

[0015] 3、 polyurethane sponge has good resilience, when people push the button, polyurethane sponge can reset, make the structure shape of flexible pad restore as before. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0017] Figure 1 It is a perspective structural schematic view of the backrest and the support frame in combination in the present application.

[0018] Figure 2 It is a perspective structural schematic view of the support frame in the present application.

[0019] Figure 3 It is a cross-sectional structural schematic view of the backrest and the support frame in combination in the present application.

[0020] Figure 4 It is a cross-sectional structural schematic view of the backrest and the strap in combination in the present application.

[0021] Figure 5 It is a perspective structural schematic view of the backrest in the present application. Figure 3 It is a local enlarged schematic view of position A in the present application.

[0022] Figure 6 It is a local enlarged schematic view of position B in the present application. Figure 4 It is a local enlarged schematic view of position B in the present application.

[0023] Figure 7 It is a perspective structural schematic view of the backrest in the present application.

[0024] In the drawing, 1 is a backrest, 11 is a cylindrical groove, 12 is a first limiting groove, 13 is a second limiting groove, 131 is a sliding groove, 132 is an elastic pushing piece, 14 is an operation hole, 15 is a folding frame, 151 is a second chamfer, 152 is a sliding plate, 16 is a button, 17 is a flexible pad, 2 is a support frame, 21 is a fixed plate, 22 is a connecting strip, 23 is a clamping block, 231 is a first chamfer, 3 is a strap, 31 is a threaded block, 311 is a rotating connection groove, 312 is a fixed block, and 313 is a limiting block. DETAILED DESCRIPTION

[0025] The drawings needed to be used in the description of the embodiments of the present application will be described as follows. Figures 1-7 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments only represent some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] EMBODIMENT

[0027] AsFigures 1 to 7 The utility model discloses a kind of sponge back cushions suitable for multiple scenes, including backrest 1, the front end of backrest 1 is wrapped with flexible pad 17 made of polyurethane sponge, the rear end surface of backrest 1 is sequentially provided with cylindrical groove 11, first limiting groove 12 and second limiting groove 13 from back to front, cylindrical groove 11, first limiting groove 12 and second limiting groove 13 are interconnected, simultaneously, the opening area of first limiting groove 12 is less than the opening area of second limiting groove 13 and cylindrical groove 11, first limiting groove 12 and second limiting groove 13 are all polygonal groove.

[0028] The back cushion is provided with support frame 2 and strap 3.

[0029] First look at strap 3, strap 3 is provided with threaded block 31, the outer side wall of this threaded block 31 and the inner side wall between cylindrical groove 11 are connected by thread cooperation.

[0030] Further, the middle part of threaded block 31 is through and its inner side wall is provided with rotating connection groove 311, rotating connection groove 311 is rotatably connected with fixed block 312, in the structure, fixed block 312 is responsible for and strap 3 generates direct connection relationship, fixed block 312 and strap 3 are fixedly connected, simultaneously, limit block 313 is rotatably arranged on the rear end surface of threaded block 31, limit block 313 is fixedly connected with fixed block 312, and the section of limit block 313 is consistent with the section of first limiting groove 12, by the structure, after assembly is finished, the swing of strap 3 and backrest 1 does not affect the connecting relationship between threaded block 31 and backrest 1, so it is relatively advantageous to prevent that strap 3 and backrest 1 are loose.

[0031] Then look at support frame 2, support frame 2 is provided with buckling mechanism, and the buckling mechanism is cooperated with first limiting groove 12 and second limiting groove 13 to enable support frame 2 to be installed on backrest 1 in the way of buckling.

[0032] Buckling mechanism specifically includes fixed plate 21 installed on support frame 2, the front end of this fixed plate 21 is provided with a plurality of connection strips 22, the front end of connection strip 22 is fixedly provided with clamping block 23, and the rear end surface of clamping block is used to and the rear end surface of second limiting groove 13 is abutted.

[0033] The first chamfer 231 is formed between the front end of the card block 23 and the end face of the card block 23 towards the side wall of the second limiting groove 13, meanwhile, the quick release mechanism is arranged on the back plate 1 for the support frame 2, the quick release mechanism comprises the folding frame 15, the opening of the folding frame 15 is rearward, the opening of the folding frame 15 is used for accommodating the card block 23, in addition, the second chamfer 151 is formed between the inner side wall of the folding frame 15 and the rear end face, in the structure, the folding frame 15 is slidingly arranged in the second limiting groove 13, the elastic pushing mechanism for pushing the folding frame 15 forward is arranged in the second limiting groove 13.

[0034] The working principle of the above structure is that people can directly adopt the pressing mode to make the support frame 2 directly combined with the back plate 1 through the buckling connection mode, when the support frame 2 needs to be disassembled, only the folding frame 15 is pushed backward, the folding frame 15 can fold the card blocks 23, the card blocks 23 can pass through the first limiting groove 12 and move backward to leave the back plate 1, finally, the effect of disassembling the support frame 2 is achieved, in addition, in the natural state, the folding frame 15 is not affected by the elastic pushing mechanism and does not hinder the normal fixation of the support frame 2.

[0035] Further, the operation hole 14 is arranged at the front end of the back plate 1, the rear end of the operation hole 14 is communicated with the front end of the second limiting groove 13, meanwhile, the button 16 is slidingly arranged in the operation hole 14, the rear end of the button 16 extends into the second limiting groove 13 and is connected with the front end of the folding frame 15, the structure can facilitate people to push the folding frame 15 backward, because the polyurethane sponge is relatively soft, people can press the button 16 through the polyurethane sponge.

[0036] The specific setting scheme of the elastic pushing mechanism is that the sliding groove 131 is arranged on the side wall of the second limiting groove 13, the elastic pushing mechanism comprises the sliding plate 152 and the elastic pushing piece 132, the sliding plate 152 is fixedly arranged on the outer side wall of the folding frame 15 and slidingly arranged in the sliding groove 131, the elastic pushing piece 132 is abuttingly arranged between the rear end of the sliding groove 131 and the rear end of the sliding plate 152.

[0037] Meanwhile, it is pointed out that the terms such as "front", "rear", "vertical", "horizontal" and the like indicated in the utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model.

[0038] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-scene applicable sponge cushion, comprising a backboard (1), the front end of the backboard (1) is wrapped with a flexible pad (17), characterized in that: The rear end face of the backrest (1) is provided with a cylindrical groove (11) and a first limiting groove (12), the front end of the first limiting groove (12) is provided with a second limiting groove (13), the opening area of the first limiting groove (12) is smaller than that of the second limiting groove (13), the backrest cushion is matched with a supporting frame (2) and a binding belt (3), the binding belt (3) is provided with a threaded block (31), the outer side wall of the threaded block (31) is connected with the inner side wall of the cylindrical groove (11) through thread cooperation, the supporting frame (2) is provided with a buckling mechanism, the buckling mechanism is matched with the first limiting groove (12) and the second limiting groove (13) to enable the supporting frame (2) to be installed on the backrest (1) in a buckling manner, and the backrest (1) is provided with a quick release mechanism for the supporting frame (2).

2. The multi-scene applicable sponge cushion according to claim 1, characterized in that: The buckling mechanism comprises a fixed plate (21) arranged on the supporting frame (2), a connecting strip (22) fixedly arranged at the front end of the fixed plate (21), and a clamping block (23) fixedly arranged at the front end of the connecting strip (22), wherein the rear end face of the clamping block (23) is used for abutting against the rear end face of the second limiting groove (13).

3. The multi-scene applicable sponge cushion according to claim 2, characterized in that: The front end of the clamping block (23) and the end face of the clamping block (23) towards the side wall of the second limiting groove (13) form a first chamfer (231), the quick release mechanism comprises a folding frame (15), the opening of the folding frame (15) is rearward, the opening of the folding frame (15) is used for accommodating the clamping block (23), a second chamfer (151) is formed between the inner side wall of the folding frame (15) and the rear end face, the folding frame (15) is slidingly arranged in the second limiting groove (13), and the second limiting groove (13) is provided with an elastic pushing mechanism for pushing the folding frame (15) forward.

4. The multi-scene applicable sponge cushion according to claim 3, characterized in that: The front end of the backrest (1) is provided with an operation hole (14), the rear end of the operation hole (14) is in communication with the front end of the second limiting groove (13), a button (16) is slidingly arranged in the operation hole (14), the rear end of the button (16) extends into the second limiting groove (13) and is connected with the front end of the folding frame (15).

5. The multi-scene applicable sponge cushion according to claim 4, characterized in that: The side wall of the second limiting groove (13) is provided with a sliding groove (131), the elastic pushing mechanism comprises a sliding plate (152) and an elastic pushing piece (132), the sliding plate (152) is fixedly arranged on the outer side wall of the folding frame (15) and slidingly arranged in the sliding groove (131), and the elastic pushing piece (132) is arranged between the rear end of the sliding groove (131) and the rear end of the sliding plate (152).

6. The multi-scene applicable sponge cushion according to claim 5, characterized in that: The rear end face of the backrest (1) is sequentially provided with a cylindrical groove (11) and a first limiting groove (12) from rear to front, the first limiting groove (12) is within the opening range of the cylindrical groove (11), the opening area of the first limiting groove (12) is smaller than that of the cylindrical groove (11), the first limiting groove (12) is a polygonal groove, the middle part of the threaded block (31) is through from front to back, and a rotating connecting groove (311) is formed in the inner side wall of the threaded block (31), a fixing block (312) is rotatably connected in the rotating connecting groove (311), the fixing block (312) is fixedly connected with the binding belt (3), a limiting block (313) is rotatably arranged on the rear end face of the threaded block (31), the limiting block (313) is fixedly connected with the fixing block (312), and the cross section of the limiting block (313) is consistent with that of the first limiting groove (12).

7. The multi-scene applicable sponge cushion according to claim 1, characterized in that: The flexible pad (17) is a polyurethane sponge.

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