Height-adjustable dining chair for children

Abstract

The utility model relates to the technical field of child dining chairs, and discloses a height-adjustable child dining chair which comprises a supporting frame, the bottom end of the supporting frame is fixedly connected with a driving assembly, the driving end of the driving assembly is fixedly connected with a worm, and the middle of the top end of the supporting frame is fixedly connected with two containing frames. A worm wheel is rotatably connected to the interior of the containing frame, supporting plates are fixedly connected to the front side and the rear side of the top end of the supporting frame, a rotating rod is fixedly connected to the interior of the worm wheel, rotating blocks are fixedly connected to the front side and the rear side of the exterior of the rotating rod, and containing blocks are fixedly connected to the front side and the rear side of the supporting frame; sliding rods are movably connected to the interiors of the sides, far away from each other, of every two rotating blocks, and connecting rods are fixedly connected to the top ends of the sliding rods. According to the height-adjustable dining chair, the height of the dining chair is adjusted, so that the height of the dining chair is matched with that of a dining table, and the comfort and dining stability of children can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of children's dining chairs, in particular to a children's dining chair with adjustable height. Background Art

[0002] A children's dining chair is a seat specially designed for children to use when eating. It is usually designed for young children and is suitable for places such as kindergartens, homes or restaurants. A height-adjustable children's dining chair can provide better adaptability, comfort and stability to meet the needs of children of different ages and different usage scenarios.

[0003] After searching, the Chinese patent announcement number is: CN218009050U. The utility model discloses a children's dining chair with an unfolded state and a folded state, including a seat and a support frame. The seat includes a seat plate assembly, a backrest assembly, an armrest assembly and an upper support rod that are hinged in sequence to form a four-bar linkage mechanism. The support frame includes a front foot assembly hinged to the backrest assembly, a rear foot assembly hinged to the front foot assembly, a two-folding rod hinged between the front foot assembly and the rear foot assembly, a connecting rod with two ends respectively hinged to at least one of the backrest assembly and the two-folding rod, and a lower support rod hinged between the front foot assembly and the seat plate assembly; the backrest assembly rotates and drives the armrest assembly to synchronously approach the seat plate assembly, and the connecting rod acts on the two-folding rod to rotate and approach to drive the front foot assembly and the rear foot assembly to rotate and approach. The structure is safer and belongs to a new type of linkage folding mechanism.

[0004] Although the description of the above patent mentioned that "first, the seat 100 relies on the four-bar linkage to realize the expansion / folding of its own components, taking the folding process as an example, the backrest assembly 120 rotates close to the seat plate assembly 110, the armrest assembly 130 rotates synchronously and approaches the seat plate assembly 110, and the upper support rod 140 rotates and gradually tends to be parallel to the seat plate assembly 110. At the same time, the backrest assembly 120 drives the connecting rod 250 to rotate and acts on the two rods of the two-folding rod to rotate and approach, thereby pulling the front foot assembly 210 and the rear foot assembly 220 to rotate and approach each other. The lower support rod 260 is used to support the seat 100 in the expanded state. Except for the hinged ends, the rest of the lower support rod 260 is not connected to any parts, which reduces the force received during the expansion / folding process and improves the safety of use. In addition, the children's dining chair of this embodiment is connected between the front and rear foot assemblies Two folding rods are arranged in between, and a connecting rod linked with the backrest assembly realizes the folding of the support frame, which is a new type of linked folding structure. The children's dining chair has a front side and a rear side, the rear side refers to the side where the backrest assembly 120 is located, and the front side is the opposite side. The children's dining chair also includes a footrest 150 rotatably mounted on the front side of the seat plate assembly 110, and the footrest 150 is also fixedly connected to the lower end of the upper support rod 140. The footrest 150 can rotate synchronously with the upper support rod 140 and gradually tend to be parallel to the seat plate assembly 110". However, the height of the dining table in each family is different, and the mismatch between the height of the dining chair and the height of the dining table makes it difficult for children to maintain a correct sitting posture, which will lead to bad sitting habits, have a negative impact on the development of the spine and posture, and affect appetite and dining experience, reducing overall comfort. For this reason, a height-adjustable children's dining chair is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a height-adjustable children's dining chair, aiming to improve the problem that the height of the dining chair in the prior art does not match that of the dining table, which will lead to children's bad sitting habits, affect their appetite and dining experience, and reduce overall comfort.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a height-adjustable children's dining chair comprises a support frame, the bottom end of the support frame is fixedly connected to a driving assembly, the driving end of the driving assembly is fixedly connected to a worm gear, the top middle part of the support frame is fixedly connected to two accommodating frames, the internal rotatable connection of the accommodating frames is connected to a worm gear, the front and rear sides of the top of the support frame are fixedly connected to a supporting plate, the inside of the worm gear is fixedly connected to a rotating rod, the front and rear sides of the rotating rod are fixedly connected to a rotating block, the front and rear sides of the support frame are fixedly connected to the accommodating blocks, the far sides of each two rotating blocks are movably connected to the inside of the sliding rod, the top of the sliding rod is fixedly connected to a connecting rod, the near sides of the multiple connecting rods are fixedly connected to a chair, the top rear side of the chair is fixedly connected to a backrest, the left and right sides of the chair are fixedly connected to the fixed blocks, and the front side of the fixed block is slidably connected to the sliding block.

[0007] Furthermore, a cavity is provided inside one side of the fixed block, a spring is provided inside the cavity, a locking rod is slidably connected inside one side of the fixed block, a limiting plate is fixedly connected to the outside of the locking rod, and a plurality of locking holes are provided inside one side of the sliding block.

[0008] Furthermore, the driving assembly includes a motor, a top end of the motor is fixedly connected to a bottom end of the support frame, and a driving end of the motor is fixedly connected to a bottom end of the worm.

[0009] Furthermore, the worm and the worm wheel are meshingly connected, and the outer portion of the rotating rod is rotationally connected to the inner portion of the supporting plate.

[0010] Furthermore, the outside of the sliding rod is slidably connected to the outside of the accommodating block, and the bottom end of the accommodating block is fixedly connected with a universal wheel.

[0011] Furthermore, a movable hole is opened on the outside of the accommodating block, and the outside of one side of the rotating block is movably connected to the inside of the movable hole.

[0012] Furthermore, the top of the sliding block is fixedly connected to a connecting block, and the tops of the two connecting blocks are fixedly connected to a table top.

[0013] Furthermore, one end of the spring is fixedly connected to one side of the limit plate, the other end of the spring is fixedly connected to one side of the interior of the cavity, the outside of one side of the cavity is engaged with the inside of the engagement hole, and the outside of the limit plate is slidably connected to the inside of the cavity.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the height of the dining chair is adjusted by the support plate, the worm gear, the accommodating frame, the worm, the support frame, the rotating rod, the rotating block, the accommodating frame, the sliding rod, the connecting rod and the movable hole, so that the height of the dining chair matches the height of the dining table, allowing the child to easily place his arms on the table and maintain a stable posture, which helps to improve the child's comfort and dining stability.

[0016] 2. In the utility model, the distance adjustment of the table board is achieved through the mutual cooperation of the fixed block, the sliding block, the connecting block, the table board, the spring, the locking rod, the limit plate, the locking hole and other structures, which can ensure that there is an appropriate space between the child and the table, so that the child can stretch his arms freely and conveniently take food and tableware. Such a design can improve the comfort of the child when dining, so that the child will not feel crowded or uncomfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a height-adjustable children's dining chair proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the support frame structure of a height-adjustable children's dining chair proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a receiving block of a height-adjustable children's dining chair proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a fixing block structure of a height-adjustable children's dining chair.

[0021] Legend:

[0022] 1. Support frame; 2. Motor; 3. Worm; 4. Receiving frame; 5. Worm wheel; 6. Support plate; 7. Rotating rod; 8. Rotating block; 9. Receiving block; 10. Sliding rod; 11. Connecting rod; 12. Movable hole; 13. Universal wheel; 14. Chair; 15. Backrest; 16. Fixed block; 17. Sliding block; 18. Connecting block; 19. Table top; 20. Cavity; 21. Spring; 22. Engaging rod; 23. Limiting plate; 24. Engaging hole. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 and Figure 3 The utility model provides an embodiment of a height-adjustable children's dining chair, comprising a support frame 1 which is the main supporting structure of the entire dining chair. The bottom end of the support frame 1 is fixedly connected to a driving assembly, the driving assembly includes a motor 2 to provide a power source, the top end of the motor 2 is fixedly connected to the bottom end of the support frame 1, the driving end of the motor 2 is fixedly connected to the bottom end of the worm 3, the driving end of the driving assembly is fixedly connected to the worm 3, two accommodating frames 4 are fixedly connected to the middle part of the top end of the support frame 1, the internal rotation of the accommodating frame 4 is connected to a worm gear 5, the worm 3 and the worm gear 5 are meshingly connected to the motor 2 to control the rotation of the worm gear 5 through the worm 3, thereby realizing the power source for height adjustment of the dining chair, the front and rear sides of the top end of the support frame 1 are fixedly connected to a support plate 6 for providing additional support and stability, the inside of the worm gear 5 is fixedly connected to a rotating rod 7, the outside of the rotating rod 7 is rotationally connected to the inside of the support plate 6, and the front and rear sides of the outside of the rotating rod 7 are fixedly connected to rotating blocks 8 for supporting and transmitting The power is transmitted, the front and rear sides of the support frame 1 are fixedly connected with a receiving block 9, the far side of each two rotating blocks 8 are movably connected with a sliding rod 10, the outside of the sliding rod 10 is slidably connected to the outside of the receiving block 9, the top of the sliding rod 10 is fixedly connected with a connecting rod 11, the outside of the receiving block 9 is provided with a movable hole 12, one side of the rotating block 8 is movably connected to the inside of the movable hole 12, the bottom end of the receiving block 9 is fixedly connected with a universal wheel 13 for support and movement, the adjacent side of the plurality of connecting rods 11 is fixedly connected with a chair 14 so that the chair 14 can move up and down with the height adjustment, the top rear side of the chair 14 is fixedly connected with a backrest 15 to provide support and comfort for the child, the left and right sides of the chair 14 are fixedly connected with a fixed block 16, the front side of the fixed block 16 is slidably connected with a sliding block 17, the top of the sliding block 17 is fixedly connected with a connecting block 18, and the tops of the two connecting blocks 18 are fixedly connected with a table board 19 for expanding the function of the dining chair.

[0025] Reference Figure 4 A cavity 20 is provided inside one side of the fixed block 16, and a spring 21 is provided inside the cavity 20 for providing elastic support or generating force. A locking rod 22 is slidably connected inside one side of the fixed block 16, and the outside of the locking rod 22 is fixedly connected to a limiting plate 23 for limiting purpose. The outside of the limiting plate 23 is slidably connected to the inside of the cavity 20, one end of the spring 21 is fixedly connected to one side of the limiting plate 23, and the other end of the spring 21 is fixedly connected to one side of the inside of the cavity 20. A plurality of locking holes 24 are provided inside one side of the sliding block 17, and the outside of one side of the cavity 20 is engaged with the inside of the locking hole 24 to provide certain limiting and stability.

[0026] Working principle: First, start the motor 2, and then drive the worm 3 to move under the drive of the motor 2, and drive the worm wheel 5 to rotate inside the accommodating frame 4 under the movement of the worm 3, and then drive the rotating rod 7 to rotate inside the supporting plate 6 under the rotation of the worm wheel 5, and then drive the rotating block 8 to move under the rotation of the rotating rod 7, and then drive the connecting rod 11 to slide inside the accommodating block 9 under the movement of the rotating block 8, and also make one side of the rotating block 8 move inside the movable hole 12, and then drive the connecting rod 11 to move under the movement of the sliding rod 10, and then drive the connecting rod 11 to move under the movement of the connecting rod 7. The movement of the lever 11 drives the chair 14 to move, so that the chair 14 moves up and down, and then pulls the locking rod 22, and the movement of the locking rod 22 drives the limit plate 23 to move inside the cavity 20, and then the movement of the limit plate 23 can also put force on the spring 21, and the spring 21 will generate a rebound force under the force to provide the subsequent force for the locking rod 22 to engage with the locking hole 24, and then the movement of the locking rod 22 also separates one side of the locking rod 22 from the inside of the locking hole 24, and at this time, pull or press the sliding block 17 to adjust the position of the sliding block 17.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A height-adjustable children's dining chair, comprising a support frame (1), characterized in that: The bottom end of the support frame (1) is fixedly connected to a driving assembly, the driving end of the driving assembly is fixedly connected to a worm (3), the middle part of the top end of the support frame (1) is fixedly connected to two accommodating frames (4), the interior of the accommodating frames (4) is rotatably connected to a worm wheel (5), the front and rear sides of the top end of the support frame (1) are fixedly connected to a supporting plate (6), the interior of the worm wheel (5) is fixedly connected to a rotating rod (7), the front and rear sides of the rotating rod (7) are fixedly connected to a rotating block (8), the front of the support frame (1) is fixedly connected to a rotating block (9), and the front of the support frame (1) is fixedly connected to a rotating block (10). Both rear sides are fixedly connected with a receiving block (9), the far sides of each of the two rotating blocks (8) are movably connected with a sliding rod (10), the top end of the sliding rod (10) is fixedly connected with a connecting rod (11), the adjacent sides of the connecting rods (11) are fixedly connected with a chair (14), the top rear side of the chair (14) is fixedly connected with a backrest (15), the left and right sides of the chair (14) are fixedly connected with a fixed block (16), and the front side of the fixed block (16) is slidably connected with a sliding block (17).

2. A height-adjustable children's dining chair according to claim 1, characterized in that: A cavity (20) is provided inside one side of the fixed block (16), a spring (21) is provided inside the cavity (20), a locking rod (22) is slidably connected inside one side of the fixed block (16), the locking rod (22) is fixedly connected to a limiting plate (23) outside, and a plurality of locking holes (24) are provided inside one side of the sliding block (17).

3. The height-adjustable children's dining chair according to claim 1, characterized in that: The driving assembly comprises a motor (2), the top end of the motor (2) is fixedly connected to the bottom end of the support frame (1), and the driving end of the motor (2) is fixedly connected to the bottom end of the worm (3).

4. The height-adjustable children's dining chair according to claim 1, characterized in that: The worm (3) and the worm wheel (5) are meshingly connected, and the outside of the rotating rod (7) is rotationally connected to the inside of the supporting plate (6).

5. The height-adjustable children's dining chair according to claim 1, characterized in that: The outside of the sliding rod (10) is slidably connected to the outside of the accommodating block (9), and the bottom end of the accommodating block (9) is fixedly connected with a universal wheel (13).

6. The height-adjustable children's dining chair according to claim 1, characterized in that: A movable hole (12) is provided on the outside of the accommodating block (9), and one side of the outer portion of the rotating block (8) is movably connected to the inside of the movable hole (12).

7. The height-adjustable children's dining chair according to claim 1, characterized in that: The top end of the sliding block (17) is fixedly connected to a connecting block (18), and the top ends of the two connecting blocks (18) are fixedly connected to a table top (19).

8. The height-adjustable children's dining chair according to claim 2, characterized in that: One end of the spring (21) is fixedly connected to one side of the limit plate (23), and the other end of the spring (21) is fixedly connected to one side of the interior of the cavity (20). The exterior of one side of the cavity (20) is engaged with the interior of the engaging hole (24), and the exterior of the limit plate (23) is slidably connected to the interior of the cavity (20).

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