Dining table seat backup plate

Abstract

The utility model relates to the technical field of seat backup plates, in particular to a dining table seat backup plate which comprises a seat plate and a back plate, a movable groove is formed in the middle of the outer surface of the back plate in a penetrating mode, a moving groove is formed in the position, corresponding to the movable groove, of the rear side of the seat plate, and a waist supporting plate of an S-shaped structure is movably connected into the movable groove. An inserting plate is movably connected into the moving groove, the inserting plate is fixedly connected with the waist supporting plate, a threaded hole is formed in the position, corresponding to the inserting plate, of the lower end face of the seat plate, a threaded column is connected into the threaded hole in a threaded mode, and the top of the threaded column is attached to the inserting plate. The chair backup plate designed by the utility model has the function of a waist support, the waist curve of a user can be better attached to the back for leaning and supporting in the actual use process, the chair backup plate is more in line with ergonomics, the waist of the user is supported, the position of the waist support plate can be adjusted and changed, and the use requirements of users with different body types are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat backrest, especially relates to a dining table seat backrest. BACKGROUND

[0002] Student dining table is the necessary equipment of each school dining room, and the student dining table is usually connected with the chair, and the current dining table seat is mostly composed of the seat backrest and the seat backrest connected in an integrated mode, and is connected with the dining table through the bottom support assembly.

[0003] The existing dining table seat has single function in the use process, cannot support the waist of students when students dine, and when the user contacts the back with the seat backrest, the waist of the user cannot be in contact with the seat backrest due to the curvature of the human spine, therefore, the traditional dining table seat cannot meet the use demand of the user. UTILITY MODEL CONTENTS

[0004] The utility model discloses a dining table seat backrest, the seat backrest designed in the application has the function of waist support, can better realize the waist curve of the user in the actual use process and the back support, is more in line with ergonomics, realizes the waist support of the user, and the position of the waist support plate can be adjusted and changed, meets the use needs of the user of different body shapes, so as to solve the problems in the above background.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a dining table seat backrest, including the seat plate and the backrest, the middle part of the outer surface of the backrest is penetrated and is equipped with the movable slot, the rear side of the seat plate is equipped with the moving slot in the corresponding position of the movable slot, the inside of the movable slot is movably connected with the S type structure's waist support plate, the inside of the moving slot is movably connected with the plugboard, the plugboard is fixedly connected with the waist support plate, the lower end surface of the seat plate is equipped with the screw hole in the corresponding position of the plugboard, the screw hole is screw connected with the threaded column, and the top of the threaded column is in contact with the plugboard.

[0006] Preferably, the bottom of the threaded column is fixedly connected with the knob cover, and the top of the threaded column is fixedly connected with the rubber pad.

[0007] Preferably, the seat and the backrest are integrally connected and injection molded.

[0008] Preferably, the plugboard and the waist support plate are composed of high-density polyethylene material.

[0009] Preferably, the outside of the waist support plate is fixedly connected with the sponge.

[0010] Compared with the prior art, the seat backrest designed in the application has the function of waist support, can better realize the curve fitting of the user's waist and the support of the back in actual use, is more in line with ergonomics, realizes the support of the user's waist, and the position of the waist support plate can be adjusted to meet the use needs of users of different body types. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a whole structure view of the utility model;

[0012] Figure 2 It is a whole structure sectional view of the utility model;

[0013] Figure 3 It is a whole structure bottom view of the utility model;

[0014] Figure 4 It is a whole structure bottom view of the utility model; Figure 2 It is an enlarged view of A in the figure.

[0015] Legend:

[0016] 1, seat plate; 2, back plate; 3, movable slot; 4, waist support plate; 5, knob cover; 6, moving slot; 7, plug plate; 8, threaded column; 9, rubber pad; 10, threaded hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0019] A dining table seat backrest, including seat plate 1 and back plate 2, the outer surface middle part of back plate 2 is through being provided with movable slot 3, the rear side of seat plate 1 is provided with moving slot 6 at corresponding position of movable slot 3, the inside movable connection of movable slot 3 has S type structure's waist support plate 4, the inside movable connection of moving slot 6 has plug plate 7, plug plate 7 is fixedly connected with waist support plate 4, the lower end surface of seat plate 1 is provided with threaded hole 10 at corresponding position of plug plate 7, threaded hole 10 is screw thread connection threaded column 8, and the top of threaded column 8 is pasted with plug plate 7.

[0020] Specifically, the bottom of the threaded column 8 is fixedly connected with the knob cover 5, and the top of the threaded column 8 is fixedly connected with the rubber pad 9.

[0021] Specifically, the seat is integrally connected with the back plate 2 by injection molding.

[0022] Specifically, the plug plate 7 and the waist support plate 4 are made of high-density polyethylene material. The plug plate 7 and the waist support plate 4 made of high-density polyethylene material have excellent strength, improve the service life, and are corrosion-resistant and high-resilient.

[0023] Specifically, the outside of the waist support plate 4 is fixedly attached with a sponge. The sponge is designed to realize flexible contact between the waist support plate 4 and the user's waist, thereby improving the comfort of the user.

[0024] Working principle:

[0025] In operation, first, the user needs to sit on the bottom plate and rely on the back plate 2 according to the body type, and the waist support plate 4 supports the waist. Then, the user loosens the threaded column 8 in the threaded hole 10 by rotating the knob cover 5, loosens the tightening of the plug plate 7 in the displacement slot, and then adjusts the front and rear displacement of the waist support plate 4 in the movable slot 3. Then, the user rotates the knob cover 5 again, tightens the threaded column 8 in the threaded hole 10, and fixes the plug plate 7 in the displacement slot by the top rubber pad 9. The seat back plate designed in the application has the function of waist support, can better realize the curve fitting of the user's waist and the support of the back in actual use, is more in line with ergonomics, realizes the support of the user's waist, and the position of the waist support plate 4 can be adjusted and changed to meet the use needs of users of different body types.

[0026] The above is only the preferred specific implementation of the application, but the protection scope of the application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A table chair backrest comprising a seat plate (1) and a back plate (2), characterized in that, The middle part of the outer surface of the back plate (2) is provided with a movable slot (3), the rear side of the seat plate (1) is provided with a moving slot (6) at the corresponding position of the movable slot (3), the inside of the movable slot (3) is movably connected with a S-shaped waist support plate (4), the inside of the moving slot (6) is movably connected with an insert plate (7), the insert plate (7) is fixedly connected with the waist support plate (4), the lower end surface of the seat plate (1) is provided with a threaded hole (10) at the corresponding position of the insert plate (7), the threaded hole (10) is threadedly connected with a threaded column (8), and the top of the threaded column (8) is attached to the insert plate (7).

2. A table chair backrest according to claim 1, characterized in that The bottom of the threaded column (8) is fixedly connected with a knob cover (5), and the top of the threaded column (8) is fixedly connected with a rubber pad (9).

3. A table chair backrest according to claim 2, characterized in that The seat and the back plate (2) are integrally connected and injection molded.

4. A table chair backrest according to claim 3, characterized in that The insert plate (7) and the waist support plate (4) are made of high-density polyethylene material.

5. A table chair backrest according to claim 4, characterized in that The outside of the waist support plate (4) is adhesively fixed with a sponge.

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