Novel backrest chair

Abstract

The utility model discloses a novel backrest chair, which relates to the technical field of backrest chairs and comprises a seat plate cushion and bottom supporting legs connected with the bottom of the seat plate cushion, a back supporting frame is arranged on the back side of the seat plate cushion, a backrest cushion is connected onto the back supporting frame, a fixing block is arranged between the back supporting frame and the backrest cushion, and a waist supporting plate is arranged on one side of the fixing block. A plurality of sets of sliding grooves are formed in the waist supporting plate. When the device is used by a user, through the arrangement of a spring, the waist supporting plate and the spring can be adaptively adjusted according to the sitting posture of the user, enough supporting force is provided for the waist of the user, and therefore better sitting posture experience is provided for the user; when the waist supporting plate cannot slide on the connecting sliding block through the sliding groove, fixed-point position fixation of the waist supporting plate and the waist supporting cushion is completed, meanwhile, before adjustment, the positions of the waist supporting plate and the waist supporting cushion can be adjusted firstly, and the requirement of a user for fixed-point waist supporting is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to backrest chair technical field especially a new backrest chair. BACKGROUND

[0002] Backrest chair provides comfortable support experience for users in modern people's office, furniture life.

[0003] In the structure of backrest chair, the structure of waist support part is mostly fixed, and only fixed support point position can be provided when supporting, and flexibility is poor.

[0004] Based on the above problems, a new backrest chair is proposed. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at the defects, and mainly aims at providing a new backrest chair, which aims at solving the above problems.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a new backrest chair, including the bottom support leg connected with the bottom of the seat plate pad, the back side of the seat plate pad is provided with the back support frame, the back support frame is connected with the backrest pad, the fixed block is arranged between the back support frame and the backrest pad, one side of the fixed block is provided with the waist support plate, a plurality of groups of sliding grooves are formed in the waist support plate, a plurality of groups of connecting sliding blocks are slidably connected to the fixed block through a plurality of groups of sliding grooves, springs are connected between the upper and lower ends of a plurality of groups of connecting sliding blocks and a plurality of groups of sliding grooves, and the waist support pad is connected to the side, away from the fixed block, of the waist support plate.

[0007] As a preferred technical scheme, the connecting sliding block is in sliding contact with the waist support plate through the sliding groove, and the waist support plate can slide up and down on the connecting sliding block.

[0008] As a preferred technical scheme, the spring arranged between the connecting sliding block and the sliding groove can store elastic potential energy along with the up-and-down sliding of the connecting sliding block.

[0009] As a preferred technical scheme, the elastic potential energy stored by the spring along with the up-and-down sliding of the connecting sliding block can make the connecting sliding block be in the middle position of the sliding groove when the waist support pad is not driven by external force.

[0010] As a preferred technical scheme, the backrest pad adopts high-density impact cloth.

[0011] As a preferred technical scheme, the two sides of the back support frame are connected with the elbow support plate.

[0012] As a preferred technical solution, the back support frame has connecting recesses on both sides, and the elbow support plate has a connecting protrusion at one end. The elbow support plate and the back support frame are connected by inserting the connecting protrusion into the connecting recess.

[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:

[0014] When the user is using this device, the lumbar support and springs can adaptively adjust to the user's sitting posture, providing sufficient support for the lower back and thus giving the user a better sitting experience.

[0015] Secondly, this device changes the clamping force of the connecting slider on the lumbar support plate. When the lumbar support plate cannot slide on the connecting slider through the groove, the fixed position of the lumbar support plate and the lumbar support pad is completed. At the same time, the position of the lumbar support plate and the lumbar support pad can be adjusted before adjustment to meet the user's need for fixed lumbar support.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of an embodiment of this utility model;

[0018] Figure 2 This is a front view schematic diagram of the overall structure of an embodiment of this utility model;

[0019] Figure 3 This is a side view of the overall structure of an embodiment of the present utility model;

[0020] Figure 4 This is a top view of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0021] Figure 5 This is a top view of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0022] Figure 6 This is a bottom view of the overall structure of an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the exploded structure of an embodiment of the present invention. Figure 1 ;

[0024] Figure 8 This is a schematic diagram of the exploded structure of an embodiment of the present invention.Figure 2 ;

[0025] Figure 9 is the explosion structure schematic of the embodiment of the utility model Figure 3 ;

[0026] Figure 10 is the partial structure explosion schematic of the waist support plate of the embodiment of the utility model Figure 1 ;

[0027] Figure 11 is the partial structure explosion schematic of the waist support plate of the embodiment of the utility model Figure 2 .

[0028] Mark 1, the seat plate pad; 2, bottom support leg; 3, elbow support plate; 4, back support frame; 5, backrest pad; 6, connecting convex end; 7, connecting concave hole; 8, waist support plate; 9, connecting sliding block; 10, fixed block; 11, sliding slot; 12, spring; 13, waist support pad. DETAILED DESCRIPTION

[0029] In order to make the purpose of the utility model, technical scheme and advantage more clearly, the following is combined with the drawing and the embodiment, and the utility model is further explained in detail.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0030] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element present.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element present.The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Please refer to Figure 1To the slide groove 11, the utility model discloses a novel back chair, including the seat plate pad 1 and the bottom support leg 2 connected at the bottom of seat plate pad 1, and the bottom support leg 2 structure can support seat plate pad 1, and can be adjusted to the height of seat plate pad 1 through the bottom support leg 2 part, and the part structure of bottom support leg 2 belongs to the mature structure in prior art, and here is not described repeatedly, the back side of seat plate pad 1 is provided with back support frame 4, and the bottom of seat plate pad 1 is provided with bolt hole that can be connected with back support frame 4 through bolt, back support frame 4 is connected with backrest pad 5, backrest pad 5 adopts high-density impact cloth, and backrest pad 5 is fixedly connected with back support frame 4 through bolt, for providing the support of back to user, and fixed block 10 is arranged between back support frame 4 and backrest pad 5, the fixed block 10 can be fixedly connected with back support frame 4 through bolt, one side of fixed block 10 is provided with waist support plate 8, a plurality of groups of slide grooves 11 are formed in waist support plate 8, and the slide groove 11 specifically has two groups, a plurality of groups of connecting sliding blocks 9 are slidably connected to fixed block 10 through a plurality of groups of slide grooves 11, and the upper and lower ends of a plurality of groups of connecting sliding blocks 9 are connected with a plurality of groups of springs 12 between a plurality of groups of slide grooves 11 respectively, connecting sliding block 9 is slidably connected with waist support plate 8 through slide groove 11, and waist support plate 8 can slide up and down on connecting sliding block 9, the spring 12 arranged between connecting sliding block 9 and slide groove 11 will store elastic potential energy along with the up-and-down sliding of connecting sliding block 9, and the elastic potential energy stored in spring 12 when connecting sliding block 9 slides up and down can make connecting sliding block 9 be at the central position of slide groove 11 when waist support pad 13 is not driven by external force, one side of waist support plate 8, away from fixed block 10, is connected with waist support pad 13, and waist support pad 13 is used to provide the support of waist to user, when the device is used, is in the stationary state, the waist support plate 8 and waist support pad 13 are at the central position through the elastic force of spring 12, and when the user is in the waist rest pad 13, when the waist produces pressure to waist support pad 13, the spring 12 below connecting sliding block 9 will store the elastic force towards connecting sliding block 9, and the spring 12 above connecting sliding block 9 will store the tension towards connecting sliding block 9, so that the waist support pad 13 of the user's waist rest is generated upward lifting force, so that the waist of the user will be subjected to lifting force, and the waist support plate 8 and waist support pad 13 can adaptively adjust along with the sitting posture of the user, that is, when the user's force on the waist rest pad 13 is greater, the upward elastic force and downward tension generated by the spring 12 above and below connecting sliding block 9 are greater, so that the lifting force of the waist support pad 13 on the waist of the user is greater, and the traditional waist support structure can only fixedly point lifting, so as to give the user's waist better use experience.

[0032] The connecting sliding block 9 and the fixed block 10 are connected through bolts, and the fixed block 10 is fixedly connected with the back support frame 4, so that when the clamping force between the connecting sliding block 9 and the fixed block 10, i.e. the clamping force of the connecting sliding block 9 on the waist supporting plate 8, is increased, the waist supporting plate 8 cannot slide on the connecting sliding block 9 through the sliding groove 11, and the fixed position of the waist supporting plate 8 and the waist supporting pad 13 is fixed, and the position of the waist supporting plate 8 and the waist supporting pad 13 can be adjusted before adjustment, so that the demand of some users for fixed waist supporting position is met.

[0033] Please refer to Figure 1 The back support frame 4 is connected with the elbow supporting plate 3 on both sides, and the elbow supporting plate 3 is used for supporting the elbow of the user.

[0034] Please refer to Figure 1 The back support frame 4 is connected with the elbow supporting plate 3 on both sides, and the elbow supporting plate 3 is used for supporting the elbow of the user.

[0035] In summary, when the user uses the device, the waist supporting plate 8 and the spring 12 can be adaptively adjusted according to the sitting posture of the user through the setting of the spring 12, sufficient supporting force is given to the waist of the user, and the user can have a better sitting posture experience.

[0036] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the principles of the present application should be included in the protection scope of the present application.

Claims

1. A new type of backrest chair comprising a seat cushion (1) and a bottom support leg (2) connected to the bottom of the seat cushion (1), characterized in that: The back side of the seat plate cushion (1) is provided with a back support frame (4), a backrest cushion (5) is connected to the back support frame (4), a fixing block (10) is arranged between the back support frame (4) and the backrest cushion (5), a waist support plate (8) is arranged on one side of the fixing block (10), a plurality of groups of sliding grooves (11) are formed in the waist support plate (8), a plurality of groups of connecting sliding blocks (9) are slidably connected to the fixing block (10) through the plurality of groups of sliding grooves (11), springs (12) are connected between the plurality of groups of connecting sliding blocks (9) and the plurality of groups of sliding grooves (11), and a waist support cushion (13) is connected to the side of the waist support plate (8) away from the fixing block (10).

2. A new backrest chair according to claim 1, characterized in that: The connecting sliding block (9) is in sliding contact with the waist support plate (8) through the sliding groove (11), and the waist support plate (8) can slide up and down on the connecting sliding block (9).

3. A new backrest chair according to claim 2, characterized in that: The spring (12) arranged between the connecting sliding block (9) and the sliding groove (11) can store elastic potential energy when the connecting sliding block (9) slides up and down.

4. A new backrest chair according to claim 3, characterized in that: The elastic potential energy stored by the spring (12) when the connecting sliding block (9) slides up and down can make the connecting sliding block (9) be in the middle position of the sliding groove (11) when the waist support cushion (13) is not driven by external force.

5. A new backrest chair according to claim 1, characterized in that: The backrest cushion (5) is made of high-density impact cloth.

6. A new backrest chair according to claim 1, characterized in that: The elbow support plates (3) are connected to the two sides of the back support frame (4).

7. A new backrest chair according to claim 6, characterized by: Connecting recesses (7) are formed in the two side edges of the back support frame (4), and the elbow support plates (3) are provided with connecting convex ends (6) at one end, so that the elbow support plates (3) and the back support frame (4) are connected through the insertion of the connecting convex ends (6) and the connecting recesses (7).

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