Elastic clamping plate type self-adaptive backrest connecting piece

Abstract

The utility model discloses an elastic clamping plate type self-adaptive backrest connecting piece which comprises a first plate and a second plate which are located at the two ends respectively, a chair back support connecting base is formed on the outer surface of the first plate, a chair back connecting base is formed on the second plate, elastic clamping plates are formed between the two ends of the first plate and the two ends of the second plate, and the elastic clamping plates are connected with the chair back support connecting base. The elastic clamping plates comprise outer clamping plates and inner clamping plates which are sequentially connected end to end, the outer clamping plates and the inner clamping plates are sequentially formed at intervals, elastic grooves are formed in the outer clamping plates and the inner clamping plates, the elastic grooves of the outer clamping plates face the inner side, and the elastic grooves of the inner clamping plates face the outer side. The seat solves the problem that an existing seat cannot be completely attached to the back after being stressed and is uncomfortable, the elastic clamping plate and the pressure direction are located on the same straight line through deformation of the elastic clamping plate after being stressed, the seat back can be further completely attached to the back, and the comfort degree of the seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat back connection structures, specifically an elastic splint type self - adapting backrest connector. Background Technique

[0002] For existing seats, in order to adjust the front - rear position of the backrest, generally a slidable plug is used to drive the backrest to move. For example, in the backrest adjustment mechanism provided in patent CN202320464076.4, the extension length of the backrest is controlled by the sliding of a connecting seat and a transverse sliding sleeve, so as to adjust the position of the backrest;

[0003] The connecting seat and the backrest are connected by bolts, and by wrapping a rubber pad outside the bolts, the backrest can be slightly deformed. When supporting the user's back, since the backrest is connected and supported by bolts, the support is not soft and comfortable enough. Therefore, in order to improve the comfort level of the backrest during use, an elastic splint type self - adapting backrest connector is designed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an elastic splint type self - adapting backrest connector. The backrest is supported by elastic splints formed by successively and alternately molding an outer splint and an inner splint. After the backrest is subjected to pressure, the pressure will be transmitted to the elastic splints, causing the outer splint and the inner splint to deform, and the deformed elastic splints are on the same straight line as the pressure direction, enabling the backrest to completely fit on the back, thereby improving the comfort of the seat.

[0005] The utility model provides the following technical solution: an elastic splint type self - adapting backrest connector, including a first plate and a second plate located at both ends respectively. A backrest support connecting seat is formed on the outer surface of the first plate, and a backrest connecting seat is formed on the second plate. Elastic splints are formed between the two ends of the first plate and the two ends of the second plate. The elastic splints include an outer splint and an inner splint connected end to end in sequence. The outer splint and the inner splint are alternately molded. Elastic grooves are formed in both the outer splint and the inner splint. The elastic groove of the outer splint faces inward, and the elastic groove of the inner splint faces outward.

[0006] In order to enhance the elasticity of the elastic splints and increase the deformation degree of the outer splint and the inner splint, both the outer splint and the inner splint are semi - circular splints, and the elastic splints are wavy.

[0007] In order to prevent the inner splint from shifting inward, a support plate is formed between the two inner splints on both sides, and through - holes are formed in both the support plate and the first plate.

[0008] In order to enhance the connection strength between the backrest support connector and the backrest support, the backrest support connector includes a base and a plug-in block. The plug-in block is formed at both ends of the base, and the plug-in block is formed on the outer side of the base. A chute is formed between the plug-in block and the first plate.

[0009] In order to enhance the connection strength between the backrest connector and the backrest, a conical part is formed on the back of the backrest connector. The conical part is located on the inner side surface of the second plate, and the end of the conical part is located between the second plate and the support plate. A countersunk threaded hole is formed in the backrest connector.

[0010] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: The elastic splints formed by the inner splint and the outer splint at intervals in sequence support the seat back. After the backrest is stressed, pressure can be applied to the inner splint and the outer splint, causing the inner splint and the outer splint to deform. At the same time, the pressure is buffered, and further the orientation of the deformed backrest is the same as the pressure orientation, so that the backrest can be completely attached to the back, improving the comfort of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is a perspective view of the overall structure of the present utility model;

[0013] Figure 2 is a perspective view of another angle of the present utility model;

[0014] Figure 3 is a sectional view of the present utility model;

[0015] In the figure: 1, the first plate; 2, the second plate; 3, the elastic splint; 31, the outer splint; 32, the inner splint; 33, the elastic groove; 4, the support plate; 41, the through hole; 5, the backrest support connector; 51, the base; 52, the plug-in block; 6, the backrest connector; 61, the conical part; 62, the threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0017] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: an elastic splint type self - adapting backrest connecting piece, which includes a first plate 1 and a second plate 2 located at both ends respectively. A backrest support connecting seat 5 is formed on the outer surface of the first plate 1. The backrest support connecting seat 5 is used for connecting with the seat support. A backrest connecting seat 6 is formed on the second plate 2. The backrest connecting seat 6 is used for connecting with the backrest. Elastic splints 3 are formed between the two ends of the first plate 1 and the two ends of the second plate 2. The elastic splints 3 include an outer splint 31 and an inner splint 32 which are connected in sequence from beginning to end. The outer splint 31 and the inner splint 32 are formed at intervals in sequence. Elastic grooves 33 are formed in both the outer splint 31 and the inner splint 32. The formation of the elastic grooves 33 enables both ends of the outer splint 31 and both ends of the inner splint 32 to have elasticity. The elastic grooves 33 of the outer splint 31 face inwards, and the elastic grooves 33 of the inner splint 32 face outwards. The cross - arranged outer splint 31 and inner splint 32 transmit the pressure received by the backrest in sequence. In this way, the pressure received by the backrest can cause the outer splint 31 and the inner splint 32 to deform, buffer the pressure, and the direction of the deformed elastic splint is the same as the direction of the pressure. Further, the backrest can be adjusted within a small angle range, so that the backrest can completely fit the back, support the back, and improve the comfort level.

[0018] Both the outer splint 31 and the inner splint 32 are semi - circular splints. The semi - circular splints enhance the elasticity of the outer splint 31 and the inner splint 32, and further improve the elasticity of the elastic splint 3. The elastic splint 3 is in a wavy shape, which improves the load - bearing capacity of the elastic splint 3.

[0019] As Figure 3 shown, a support plate 4 is formed between the inner splints 32 on both sides. The support plate 4 enhances the strength between the inner splints 32, enables the outer splint 31 and the inner splint 32 to be stressed evenly, and further improves the load - bearing capacity of the elastic splint 3. Through holes 41 are opened on both the support plate 4 and the first plate 1. The opening of the through holes 41 reduces the rigidity between the inner splints 32 on both sides, making the inner splints 32 easier to deform.

[0020] As Figure 1 shown, the backrest support connecting seat 5 includes a base 51 and a plug - in block 52. The plug - in block 52 is formed at both ends of the base 51 and protrudes to the outside of the base 51. A sliding groove is formed between the plug - in block 52 and the first plate 1. The plug - in block 52 is used for plugging into the side of the seat support, and the sliding groove is used to further enhance the connection strength with the seat support, thus ensuring the connection stability between the backrest support connecting seat 5 and the backrest support.

[0021] As Figure 3As shown, a conical portion 61 is formed on the back of the backrest connecting seat 6. The conical portion 61 is located on the inner side surface of the second plate 2, and the end of the conical portion 61 is located between the second plate 2 and the support plate 4. A countersunk threaded hole 62 is formed in the backrest connecting seat 6. The threaded hole 62 is formed in the conical portion 61. A bolt is used to connect in the threaded hole 62. The bolt passes through the backrest and is connected in the backrest connecting seat 6, enhancing the connection strength between the backrest and the backrest connecting seat 6.

[0022] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An elastic splint type self - adaptive backrest connecting member, comprising a first plate and a second plate respectively located at both ends. A backrest support connecting seat is formed on the outer surface of the first plate, and a backrest connecting seat is formed on the second plate, characterized in that: Elastic clamping plates are formed between the two ends of the first plate and the two ends of the second plate. The elastic clamping plates include an outer clamping plate and an inner clamping plate that are sequentially connected end to end. The outer clamping plate and the inner clamping plate are sequentially spaced apart and formed. Elastic grooves are formed in both the outer clamping plate and the inner clamping plate. The elastic groove of the outer clamping plate faces inward, and the elastic groove of the inner clamping plate faces outward.

2. The elastic splint type adaptive backrest connecting member according to claim 1, characterized in that: Both the outer clamping plate and the inner clamping plate are semi-circular clamping plates, and the elastic clamping plate is wavy.

3. The elastic splint type adaptive backrest connecting member according to claim 1, characterized in that: A support plate is formed between the inner clamping plates on both sides, and through holes are provided on both the support plate and the first plate.

4. The elastic splint type self-adaptive backrest connecting member according to claim 1, wherein: The backrest support seat includes a base and a plug-in block. The plug-in block is formed at both ends of the base, and the plug-in block is formed on the outside of the base. A sliding groove is formed between the plug-in block and the first plate.

5. The elastic splint type self-adaptive backrest connecting member according to claim 1, wherein: A conical part is formed on the back of the backrest connection seat. The conical part is located on the inner side surface of the second plate. The end of the conical part is located between the second plate and the support plate. A countersunk threaded hole is provided in the backrest connection seat.

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