Back-chasing chair for children

Abstract

The utility model relates to the technical field of chairs, in particular to a child back-chasing chair which comprises a back-chasing chair main body, a cushion supporting seat is arranged on the back-chasing chair main body and is of an inverted-n-shaped structure, spring limiting plates are symmetrically arranged in the cushion supporting seat, springs are clamped between the spring limiting plates, and the spring limiting plates are arranged on the cushion supporting seat. A first connector and a second connector are clamped and fixed to the two ends of the spring respectively, a movable connecting block is connected to the end, located at the first connector, of the spring, a movable connecting plate is connected to the end, located at the second connector, of the spring, a positioning arc-shaped plate is arranged at one end in the cushion supporting seat, and adjusting discs are clamped to the two ends of the positioning arc-shaped plate respectively; and round hole structures are formed in the middles and the side faces of the adjusting discs, and a positioning disc is arranged outside the adjusting disc on one side of the positioning arc-shaped plate. According to the child back-chasing chair, the steps of controlling a chair back switch can be reduced, the operation of parents is reduced, and the child can use the child back-chasing chair conveniently by automatically tracking the chair back.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a children's back-chair. Background Art

[0002] Children's back-supporting chairs, also often called children's growth chairs or children's learning chairs, are chairs designed specifically for children that can adjust the height and backrest as the child grows. Back-supporting chairs are ergonomic and can better fit the child's body structure to reduce fatigue caused by long-term sitting and protect the child's bone and muscle development. At the same time, back-supporting chairs are adjustable and can adapt to the spinal curves of children of different ages.

[0003] Existing retractable chairs usually have a control switch on the seat to achieve the retractable operation. However, children are not strong enough or do not know how to operate the switch, so parents are required to cooperate in the operation, which makes it inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a children's retractable chair to solve the problem raised in the above-mentioned background technology that retractable chairs on the market currently usually have a control switch on the seat to achieve the retractable operation, but children have little strength or cannot operate the switch control, so the parents need to cooperate in the operation, which leads to inconvenience in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a child's chasing back chair, comprising a chasing back chair main body, a seat cushion support seat being provided on the chasing back chair main body, and the seat cushion support seat being an inverted "X"-shaped structure, a spring limiting plates being symmetrically provided in the seat cushion support seat, and a spring being clamped between the spring limiting plates, two ends of the spring being respectively clamped and fixed with a first connecting head and a second connecting head, and the spring being connected to an active connecting block at one end of the first connecting head, and the spring being connected to an active connecting plate at one end of the second connecting head, a positioning arc plate being provided at one end of the seat cushion support seat, and adjusting disks being respectively clamped at two ends of the positioning arc plate, and circular hole structures are opened in the middle and side portions of the adjusting disk, a positioning disk is provided outside the adjusting disk on one side of the positioning arc plate, and a rotating rod passes through the middle of the positioning disk and the seat cushion support seat.

[0006] Preferably, the main body of the reclining chair is further provided with an L-shaped backrest linkage rod, and both ends of the backrest linkage rod are provided with round hole structures.

[0007] Preferably, the spring limiting plates are arranged in parallel and are fixed by a clamping plate structure.

[0008] Preferably, both ends of the spring limiting plate are provided with round hole structures, and the round hole structure at one end of the spring limiting plate and the lower end of the armchair linkage rod penetrate the latch structure.

[0009] Preferably, a U-shaped connecting piece is welded and fixed to the outside of the seat cushion support seat on one side away from the positioning arc plate, and a U-shaped seat back connecting seat is movably connected to the outside of the connecting piece via a rotating shaft.

[0010] Preferably, the movable connection block is movably connected to the first connecting head via a through-pin, and the movable connection block is fixed to the seat cushion support seat by welding.

[0011] Preferably, the movable connecting plate is also a U-shaped piece, and a waist hole structure is opened on the movable connecting plate, and the movable connecting plate is movably connected to the second connecting head through the waist hole through a through-pin structure.

[0012] Preferably, the movable connecting plate is clamped between the spring limiting plates, and the waist hole structure of the movable connecting plate and the spring limiting plate also penetrate the pin structure, and the bottom of the movable connecting plate is welded and fixed to the seat cushion support seat, the spring limiting plate and the movable connecting plate are jointly clamped with the positioning arc plate, and the bottom of the spring limiting plate is gap-matched with the seat cushion support seat.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the child's back-chair can reduce the steps of backrest switch control, reduce the operation of parents, and facilitate the use of children by automatically tracking the backrest. The child's back-chair sets one end of the spring on the arc-shaped member. After the child sits on the seat cushion, gravity acts on the spring limit plate through the arc-shaped member. The arc-shaped member rotates under the action of gravity, driving the spring limit plate to move, realizing the automatic tracking of the backrest, and the spring is used for the reset of the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric diagram of a children's back-chair of the utility model;

[0015] Figure 2 This is a side view of a children's back-chair of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the seat cushion support seat and the connection seat of a child's back-chair of the utility model;

[0017] Figure 4 This is a schematic diagram of the relative positioning arc plate position structure of a spring of a children's back-chair of the utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure of a spring, a movable connection block and a movable connection plate of a child's back-chair of the utility model;

[0019] Figure 6 The utility model is a schematic diagram of the external structure of a children's back-chair.

[0020] In the figure: 1. Backrest chair body; 2. Backrest linkage rod; 3. Backrest connecting seat; 4. First connecting head; 5. Spring limit plate; 6. Cushion support seat; 7. Active connecting block; 8. Spring; 9. Second connecting head; 10. Active connecting plate; 11. Positioning plate; 12. Adjusting plate; 13. Positioning arc plate; 14. Connecting piece. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-6The utility model provides a technical solution: a child's back-chair, including a back-chair main body 1, a backrest linkage rod 2 of an L-shaped structure is provided on the back-chair main body 1, and round hole structures are provided at both ends of the backrest linkage rod 2. This structure can realize the linkage processing of the backrest and the seat through the backrest linkage rod 2, and the movement of the upper backrest is driven by the movement of the lower side of the backrest linkage rod 2 to realize the back-chair processing. A seat cushion support seat 6 is provided on the back-chair main body 1, and the seat cushion support seat 6 is an inverted "X"-shaped structure. Spring limiting plates 5 are symmetrically provided in the seat cushion support seat 6. The spring limiting plates 5 are arranged in parallel, and the spring limiting plates 5 are fixed by a clamping plate structure. This structure makes the spring limiting plates 5 relatively stable, and allows the spring limiting plates 5 to position the springs 8. , circular hole structures are opened at both ends of the spring limiting plate 5, and the circular hole structure at one end of the spring limiting plate 5 and the lower end of the backrest linkage rod 2 pass through the latch structure. When the spring limiting plate 5 moves, the other end of the spring limiting plate 5 can drive the backrest linkage rod 2 to move, and realize the rotation of the backrest linkage rod 2 relative to the spring limiting plate 5, and a spring 8 is clamped between the spring limiting plates 5. A U-shaped connecting piece 14 is welded and fixed to the outside of the cushion support seat 6 away from the positioning arc plate 13, and the outer side of the connecting piece 14 is movably connected with a U-shaped seat back connecting seat 3 through a rotating shaft. After the child sits on the seat, gravity acts on the seat, and the back can be leaned on the positioning arc plate 13 on the backrest. The positioning arc plate 13 is on the cushion support seat 6 The movable connecting plate 10 is also a U-shaped part, and a waist hole structure is provided on the movable connecting plate 10, and the movable connecting plate 10 is movably connected with the second connecting head 9 through the waist hole through a through-pin structure. This structure enables the second connecting head 9 to rotate under the positioning of the movable connecting plate 10, so as to realize the rotation processing of the end of the spring 8. The first connecting head 4 and the second connecting head 9 are respectively clamped and fixed at both ends of the spring 8, and the spring 8 is connected to the movable connecting block 7 at one end of the first connecting head 4, and the spring 8 is connected to the movable connecting plate 10 at one end of the second connecting head 9. The movable connecting plate 10 is clamped between the spring limiting plates 5, and the waist hole structure of the movable connecting plate 10 and the spring limiting plate 5 The pin structure also runs through the latch structure, and the bottom of the movable connecting plate 10 is welded and fixed to the cushion support seat 6. The spring limiting plate 5 and the movable connecting plate 10 are jointly connected with the positioning arc plate 13, and the bottom of the spring limiting plate 5 is clearance-matched with the cushion support seat 6. This structure can fix the position of the movable connecting plate 10, and the spring limiting plate 5 and the second connecting head 9 are positioned respectively through the waist hole of the movable connecting plate 10. When the positioning arc plate 13 is rotated, the positioning arc plate 13 will drive the spring limiting plate 5 to move. The restriction of the spring limiting plate 5 by the movable connecting plate 10 makes the spring limiting plate 5 move in a straight line, and the other end of the spring limiting plate 5 drives the chair linkage rod 2 to rotate, so as to realize the automatic chasing operation of the back-chair main body 1, which is convenient for children to use.A positioning arc plate 13 is provided at one end of the cushion support seat 6, and an adjusting disk 12 is clamped at both ends of the positioning arc plate 13, and a circular hole structure is opened in the middle and side of the adjusting disk 12, so that the circular hole of the adjusting disk 12 corresponds to the waist hole position of the movable connecting plate 10, so that the adjusting disk 12 is fixed relative to the movable connecting plate 10, and the switch processing of the automatic chasing back of the back-chair body 1 can be manually controlled. A positioning disk 11 is provided on the outside of the adjusting disk 12 on one side of the positioning arc plate 13, and a rotating rod passes through the middle of the positioning disk 11 and the cushion support seat 6. The movable connecting block 7 and the first connecting head 4 are movably connected by a through pin, and the movable connecting block 7 and the cushion support seat 6 are fixed by welding. This structure allows the spring 8 to be rotatable through the cooperation of the movable connecting block 7 and the first connecting head 4. At the same time, the position of this end of the spring 8 is fixed, so that the spring 8 can be compressed to help the back-chair body 1 to reset and chase the back.

[0023] Working principle: when using the child's back-chair, first, the back-chair body 1 fixes the seat through the cushion support seat 6. After the child sits on the seat, gravity acts on the positioning arc plate 13. The positioning arc plate 13 rotates through the positioning of the cushion support seat 6 and the limitation of the adjustment disk 12. The positioning disk 11 is used to control the rotation angle. When the positioning arc plate 13 rotates, it drives the spring limit plate 5 to move. The restriction of the spring limit plate 5 by the movable connecting plate 10 causes the spring limit plate 5 to move in a straight line, and the other end of the spring limit plate 5 drives the backrest linkage rod 2 to move, and realizes the rotation processing of the backrest linkage rod 2, so that the backrest structure installed through the backrest linkage rod 2 is displaced, so that the backrest can lean on it. The child's back is automatically tracked by the chair back. After the spring limit plate 5 is displaced, it pushes the chair back connecting seat 3, so that the chair back connecting seat 3 rotates relative to the cushion support seat 6 under the positioning of the connecting piece 14, thereby realizing the angle control of the chair back by the chair back connecting seat 3, controlling the chair back and the backrest to be at different angles to adapt to the child's sitting posture. The two ends of the spring 8 are fixed relative to the movable connecting block 7 and the movable connecting plate 10 through the first connecting head 4 and the second connecting head 9, so that when one end of the spring 8 is fixed, the other end is compressed by the activity generated by the rotation of the positioning arc plate 13, and the positioning arc plate 13 is reset by the reaction force of the spring 8, thereby performing automatic back tracking processing, thereby completing a series of tasks.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A children's back-supporting chair, comprising a back-supporting chair body (1), characterized in that: The backrest chair body (1) is provided with a seat cushion support seat (6), and the seat cushion support seat (6) is an inverted "X"-shaped structure, and spring limit plates (5) are symmetrically arranged in the seat cushion support seat (6), and a spring (8) is clamped between the spring limit plates (5), and the two ends of the spring (8) are respectively clamped and fixed with a first connecting head (4) and a second connecting head (9), and the spring (8) is connected to a movable connecting block (7) at one end of the first connecting head (4), and the spring (8) is clamped at the second connecting head (9). One end of the connector (9) is connected to a movable connecting plate (10), one end of the seat cushion support seat (6) is provided with a positioning arc plate (13), and the two ends of the positioning arc plate (13) are respectively clamped with an adjustment disk (12), and the middle and side of the adjustment disk (12) are provided with a circular hole structure, and a positioning disk (11) is provided outside the adjustment disk (12) on one side of the positioning arc plate (13), and a rotating rod passes through the middle of the positioning disk (11) and the seat cushion support seat (6).

2. A child's backrest chair according to claim 1, characterized in that: The backrest chair body (1) is also provided with an L-shaped backrest linkage rod (2), and both ends of the backrest linkage rod (2) are provided with round hole structures.

3. The child's back-supporting chair according to claim 1, characterized in that: The spring limiting plates (5) are arranged in parallel with each other, and the spring limiting plates (5) are fixed by means of a clamping plate-like structure.

4. The child's back-supporting chair according to claim 2, characterized in that: Both ends of the spring limiting plate (5) are provided with circular hole structures, and the circular hole structure at one end of the spring limiting plate (5) and the lower end of the armchair linkage rod (2) penetrate the latch structure.

5. The child's back-supporting chair according to claim 1, characterized in that: A U-shaped connecting piece (14) is welded and fixed to the outside of the seat cushion support seat (6) on one side away from the positioning arc plate (13), and a U-shaped chair back connecting seat (3) is movably connected to the outside of the connecting piece (14) via a rotating shaft.

6. The child's back-supporting chair according to claim 1, characterized in that: The movable connection block (7) and the first connection head (4) are movably connected via a through-pin, and the movable connection block (7) and the seat cushion support seat (6) are fixed by welding.

7. The child's back-supporting chair according to claim 1, characterized in that: The movable connecting plate (10) is also a U-shaped piece, and a waist hole structure is provided on the movable connecting plate (10), and the movable connecting plate (10) is movably connected to the second connecting head (9) through the waist hole via a through-pin structure.

8. The child's back-supporting chair according to claim 1, characterized in that: The movable connecting plate (10) is clamped between the spring limiting plates (5), and the waist hole structure of the movable connecting plate (10) and the spring limiting plate (5) also penetrate the latch structure, and the bottom of the movable connecting plate (10) is welded and fixed to the seat cushion support seat (6), the spring limiting plate (5) and the movable connecting plate (10) are clamped together with the positioning arc plate (13), and the bottom of the spring limiting plate (5) and the seat cushion support seat (6) are clearance-matched.

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