Small dining chair for infants

Abstract

The utility model discloses a small dining chair for infants, and belongs to the technical field of baby products. The chair comprises a seat, two front supporting legs and two rear supporting legs, and the front supporting legs and the rear supporting legs are in one-to-one correspondence; the top ends of the front supporting leg and the rear supporting leg which correspond to each other are hinged through a rotary joint; the seat comprises a seat plate and a backup plate, and the tail end of the seat plate is hinged to the bottom end of the backup plate; one side of the front end of the seat plate is hinged to the front supporting leg, and one side of the rear end of the seat plate is inserted into the rear supporting leg through a locking structure. The foldable dining table is foldable and convenient to store, the height of the supporting legs can be adjusted, the dining table can adapt to different dining scenes conveniently, the distance between the dining plates is adjustable, and dining is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of baby products, and in particular relates to a small dining chair for infants. Background Art

[0002] In the prior art, a children's dining chair generally includes a bottom bracket located at the bottom and a seat mechanism located above the bottom bracket. Such a children's dining chair is generally only suitable for young children who can sit or stand, has only two states: folded and unfolded, has no height adjustment, and has a single function, thus causing a certain degree of waste. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and provide a small dining chair for infants and young children; the chair can be folded for easy storage, the height of the legs can be adjusted to facilitate adaptation to different dining scenes, the distance between the dining boards can be adjusted, and dining is more convenient.

[0004] The utility model is specifically implemented through the following scheme:

[0005] A small dining chair for infants and young children, comprising a seat, two front legs and two rear legs, the front legs and the rear legs corresponding to each other; the top ends of the corresponding front legs and the rear legs are hinged by a folding joint; the seat comprises a seat plate and a back plate, the rear end of the seat plate and the bottom end of the back plate are hinged;

[0006] The front end side of the seat plate is hinged to the front support leg, and the rear end side is plugged into the rear support leg through a locking structure.

[0007] Furthermore, the locking structure includes an action slide and a linkage rod; the action slide and the linkage rod are both constrained on the seat, and the movable direction of the action slide is perpendicular to the movable direction of the linkage rod;

[0008] The action slide plate is an annular structure, the linkage rod is hooked on the inner side of the annular structure, the contacting surfaces of the two are inclined surfaces, and the two inclined surfaces are attached to each other and can slide relative to each other.

[0009] Furthermore, it also includes a pipe sleeve, which is sleeved on the rear support leg and can slide freely along the central axis of the rear support leg; the end of the linkage rod of the locking structure passes through the pipe sleeve and is inserted into the rear support leg; the pipe sleeve is provided with a sliding hole that slides with the linkage rod, and the central axis of the sliding hole is perpendicular to the central axis of the rear support leg.

[0010] Furthermore, it also includes a dining board; both sides of the dining board are connected to the folding joints on the corresponding sides through corresponding dining support rods.

[0011] Further, the folding joint comprises a front foot connection piece, a rear foot connection piece, a support rod connection piece and a locking wheel whose central axes coincide with each other; the support rod connection piece is an annular structure and is located between the front foot connection piece and the rear foot connection piece; a circular groove is provided on the inner side surface of the rear foot connection piece, and a first tooth groove is arrayed on the arc surface of the circular groove; the locking wheel is partially located in the support rod connection piece and partially located in the circular groove;

[0012] An annular groove is provided on the support rod connecting member on one side close to the rear leg connecting member, and the maximum diameter of the annular groove is greater than the inner diameter of the support leg connecting member; the annular groove is provided with a second tooth groove in an annular array, and a second inclined surface is provided on one side of the second tooth groove;

[0013] On the locking wheel, teeth are provided on a portion of the annular circumferential side surface close to the rear foot connecting piece; a second inclined surface for matching with the first inclined surface is provided on one side of the teeth close to the front foot connecting piece, and the first inclined surface and the second inclined surface are slidably matched; on the locking wheel, a sliding groove with an inner inclined surface is provided on the side surface close to the front foot connecting piece;

[0014] On the front foot connecting piece, a sliding protrusion matched with the sliding groove is provided on the side close to the locking wheel, and an outer inclined surface matched with the inner inclined surface is provided on the sliding protrusion;

[0015] When the front foot connecting member and the rear foot connecting member are in a locked state, the sliding protrusion is located in the sliding groove, and the teeth on the locking wheel span the first tooth groove and the second tooth groove.

[0016] Furthermore, a first spring is provided between the circular groove and the locking wheel.

[0017] Furthermore, one side of the upper end of the backrest is connected to the folding joint through a connecting rod, one end of the connecting rod is hinged to the backrest, and the other end of the connecting rod is hinged to the folding joint.

[0018] Furthermore, the front support leg and the rear support leg are both lifting rod structures, which include an inner rod and an outer tube; the central axes of the inner rod and the outer tube coincide and are slidably matched; the inner rod is provided with an elastic pin, and the outer tube is provided with a plurality of pin holes corresponding to the elastic pin.

[0019] Furthermore, the linkage rod includes an insertion rod and a spring pressure rod; one end of the spring pressure rod is hooked on the action slide plate, and the other end is connected to the insertion rod; a second spring is provided between the spring pressure rod and the spring support of the seat plate.

[0020] Furthermore, the sliding protrusion and the sliding groove are both located on the same circular ring; the dining support rod and the support rod connecting piece are slidably matched, and both are respectively provided with corresponding second elastic pins and second pin holes.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model can realize the unfolding and storage of the dining chair through the folding joint and the locking structure, and is easy to use; the supporting feet can adapt to tabletops of different heights through the cooperation of elastic pins and pin holes, which is convenient for guardians to take care of; the second elastic pin and the second pin hole on the dining support rod of the dining board and the support rod connecting piece are used to adjust the distance of the dining board to adapt to infants and young children of different body shapes, thereby reducing the discomfort of dining under standard conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the lower surface of the seat plate of the utility model.

[0025] Figure 3 This is a schematic diagram of the locking structure of the utility model (without spring).

[0026] Figure 4 The locking structure of the utility model is shown in FIG. Figure 2 (No spring).

[0027] Figure 5 It is a schematic diagram of the folding joint structure of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the front foot connecting piece of the utility model.

[0029] Figure 7 It is a structural schematic diagram of the locking wheel of the utility model.

[0030] Figure 8 It is a structural schematic diagram of the support rod connecting piece of the utility model.

[0031] Fig. 9 It is a structural schematic diagram of the rear foot connecting piece of the utility model.

[0032] Fig.10 It is a schematic diagram of the cooperation between the locking wheel and the rear foot connecting piece of the utility model.

[0033] Fig.11 It is a schematic diagram of the matching of the locking wheel and the support rod connecting piece of the utility model.

[0034] Fig.12 It is a structural schematic diagram of a dining support rod and a support rod connecting piece of the utility model.

[0035] In the figure: 1, front support leg, 2, seat plate, 3, rear support leg, 4 (13), connecting rod, 5, back plate, 6, dining support rod, 7, linkage rod, 8, pipe sleeve, 9, spring pressure rod, 10, action slide plate, 11, front leg connecting piece, 12, support rod connecting piece, 13 (4), connecting rod, 14, rear leg connecting piece, 15, sliding protrusion, 16, tooth, 17, sliding groove, 18, second tooth groove, 19, first tooth groove, 102, second elastic pin, 101, second pin hole, 20, dining board. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0037] A small dining chair for infants and young children, comprising a seat, two front legs and two rear legs, the front legs and the rear legs corresponding to each other; the top ends of the corresponding front legs and the rear legs are hinged by a folding joint; the seat comprises a seat plate and a back plate, the rear end of the seat plate and the bottom end of the back plate are hinged;

[0038] The front end side of the seat plate is hinged to the front support leg, and the rear end side is plugged into the rear support leg through a locking structure.

[0039] Furthermore, the locking structure includes an action slide and a linkage rod; the action slide and the linkage rod are both constrained on the seat, and the movable direction of the action slide is perpendicular to the movable direction of the linkage rod;

[0040] The action slide plate is an annular structure, the linkage rod is hooked on the inner side of the annular structure, the contacting surfaces of the two are inclined surfaces, and the two inclined surfaces are attached to each other and can slide relative to each other.

[0041] Furthermore, it also includes a pipe sleeve, which is sleeved on the rear support leg and can slide freely along the central axis of the rear support leg; the end of the linkage rod of the locking structure passes through the pipe sleeve and is inserted into the rear support leg; the pipe sleeve is provided with a sliding hole that slides with the linkage rod, and the central axis of the sliding hole is perpendicular to the central axis of the rear support leg.

[0042] Furthermore, it also includes a dining board; both sides of the dining board are connected to the folding joints on the corresponding sides through corresponding dining support rods.

[0043] Further, the folding joint comprises a front foot connection piece, a rear foot connection piece, a support rod connection piece and a locking wheel whose central axes coincide with each other; the support rod connection piece is an annular structure and is located between the front foot connection piece and the rear foot connection piece; a circular groove is provided on the inner side surface of the rear foot connection piece, and a first tooth groove is arrayed on the arc surface of the circular groove; the locking wheel is partially located in the support rod connection piece and partially located in the circular groove;

[0044] An annular groove is provided on the support rod connecting member on one side close to the rear leg connecting member, and the maximum diameter of the annular groove is greater than the inner diameter of the support leg connecting member; the annular groove is provided with a second tooth groove in an annular array, and a second inclined surface is provided on one side of the second tooth groove;

[0045] On the locking wheel, teeth are provided on a portion of the annular circumferential side surface close to the rear foot connecting piece; a second inclined surface for matching with the first inclined surface is provided on one side of the teeth close to the front foot connecting piece, and the first inclined surface and the second inclined surface are slidably matched; on the locking wheel, a sliding groove with an inner inclined surface is provided on the side surface close to the front foot connecting piece;

[0046] On the front foot connecting piece, a sliding protrusion matched with the sliding groove is provided on the side close to the locking wheel, and an outer inclined surface matched with the inner inclined surface is provided on the sliding protrusion;

[0047] When the front foot connecting member and the rear foot connecting member are in a locked state, the sliding protrusion is located in the sliding groove, and the teeth on the locking wheel span the first tooth groove and the second tooth groove.

[0048] Furthermore, a first spring is provided between the circular groove and the locking wheel.

[0049] Furthermore, one side of the upper end of the backrest is connected to the folding joint through a connecting rod, one end of the connecting rod is hinged to the backrest, and the other end of the connecting rod is hinged to the folding joint.

[0050] Furthermore, the front support leg and the rear support leg are both lifting rod structures, which include an inner rod and an outer tube; the central axes of the inner rod and the outer tube coincide and are slidably matched; the inner rod is provided with an elastic pin, and the outer tube is provided with a plurality of pin holes corresponding to the elastic pin.

[0051] Furthermore, the linkage rod includes an insertion rod and a spring pressure rod; one end of the spring pressure rod is hooked on the action slide plate, and the other end is connected to the insertion rod; a second spring is provided between the spring pressure rod and the spring support of the seat plate.

[0052] Furthermore, the sliding protrusion and the sliding groove are both located on the same circular ring; the dining support rod and the support rod connecting piece are slidably matched, and both are respectively provided with corresponding second elastic pins and second pin holes.

[0053] The following is a more specific embodiment:

[0054] Reference Figure 1 The present embodiment includes a seat, two front legs, two rear legs and a dining board; the bottoms of the two front legs are connected, and the bottoms of the two rear legs are connected to increase stability. The seat backrest is hinged to the inner side of the folding joint through a connecting rod and is coaxially arranged with the folding joint. The dining board is connected to the support rod connector through a dining support rod to achieve storage and folding; the dining support rod and the support rod are connected through an elastic pin and a pin hole. The specific structure diagram of the two is as follows Fig.12 shown.

[0055] Reference Figures 2 to 4 The locking structure is located below the seat plate of the base, and includes an action slide and a linkage rod; the action slide and the linkage rod are both constrained on the seat, and the movable direction of the action slide is perpendicular to the movable direction of the linkage rod;

[0056] The action slide plate is an annular structure, and the linkage rod is hooked on the inner side of the annular structure. The contact surface between the two is an inclined surface, and the two inclined surfaces are attached to each other and can slide relative to each other. The pipe sleeve is sleeved on the rear support leg and can slide freely along the central axis of the rear support leg; the end of the linkage rod of the locking structure passes through the pipe sleeve and is plugged into the rear support leg; the pipe sleeve is provided with a sliding hole that slides with the linkage rod, and the central axis of the sliding hole is perpendicular to the central axis of the rear support leg. The linkage rod includes an insertion rod and a spring pressure rod; one end of the spring pressure rod is hooked on the action slide plate, and the other end is connected to the insertion rod; a second spring is provided between the spring pressure rod and the spring support of the seat plate.

[0057] Reference Figure 3 The spring pressure rod 9 is a U-shaped structure, and the spring is located in the U-shaped structure, with one end of the spring pressing against one side thereof and the other end resting against the shell in which the spring pressure rod is installed; when in use, the action slide is pulled to make the two spring pressure rods that fit the inclined surface of the action slide approach each other, further separating the insertion rod from the rear support leg; at this time, the pipe sleeve can move freely along the rear support leg, that is, the folding joint is in an unlocked state, and relative rotation can occur.

[0058] Reference Figures 5 to 11 The folding joint comprises a front foot connection piece, a rear foot connection piece, a support rod connection piece and a locking wheel whose central axes coincide with each other; the support rod connection piece is an annular structure and is located between the front foot connection piece and the rear foot connection piece; a circular groove is provided on the inner side surface of the rear foot connection piece, and a first tooth groove is arrayed on the arc surface of the circular groove; the locking wheel is partially located in the support rod connection piece and partially located in the circular groove;

[0059] An annular groove is provided on the leg connecting member on one side close to the rear leg connecting member, and the maximum diameter of the annular groove is greater than the inner diameter of the leg connecting member; the annular groove is provided with a second tooth groove in an annular array, and a second inclined surface is provided on one side of the second tooth groove;

[0060] On the locking wheel, teeth are provided on a portion of the annular circumferential side surface close to the rear foot connecting piece; a first inclined surface for matching with the first inclined surface is provided on one side of the teeth close to the front foot connecting piece, and the first inclined surface and the second inclined surface are slidably matched; on the locking wheel, a sliding groove with an inner inclined surface is provided on the side surface close to the front foot connecting piece;

[0061] On the front foot connecting piece, a sliding protrusion matched with the sliding groove is provided on the side close to the locking wheel, and an outer inclined surface matched with the inner inclined surface is provided on the sliding protrusion;

[0062] A first spring is arranged between the circular groove and the locking wheel. One side of the upper end of the supporting plate is connected to the folding joint through a connecting rod, one end of the connecting rod is hinged to the supporting plate, and the other end is hinged to the folding joint.

[0063] When the front foot connecting member and the rear foot connecting member are locked, the sliding protrusion is located in the sliding groove, and the teeth on the locking wheel span the first tooth groove and the second tooth groove. When folding is required, the folding joint is firstly unlocked;

[0064] The front foot connecting piece and the support rod connecting piece are rotated, and due to the cooperation between the outer inclined surface of the sliding protrusion and the inner inclined surface of the sliding groove, as well as the cooperation between the first inclined surface and the second inclined surface, the locking wheel moves toward the side of the circular groove, and the first spring is compressed; as the locking wheel moves, the teeth of the locking wheel no longer cross the first tooth groove and the second tooth groove, thereby achieving the final folding; in this process, the pipe sleeve moves along the rear supporting foot.

Claims

1. A small dining chair for infants and young children, comprising a seat, two front legs and two rear legs, wherein the front legs correspond to the rear legs one by one; characterized in that: The corresponding front and rear legs are hinged at their top ends through a folding joint; the seat comprises a seat plate and a back plate, and the rear end of the seat plate and the bottom end of the back plate are hinged; The front end side of the seat plate is hinged to the front support leg, and the rear end side is plugged into the rear support leg through a locking structure.

2. A small dining chair for infants and young children according to claim 1, characterized in that: The locking structure includes an action slide and a linkage rod; the action slide and the linkage rod are both constrained on the seat, and the movable direction of the action slide is perpendicular to the movable direction of the linkage rod; The action slide plate is an annular structure, the linkage rod is hooked on the inner side of the annular structure, the contacting surfaces of the two are inclined planes, and the two inclined planes are attached to each other and can slide relative to each other.

3. The small dining chair for infants and young children according to claim 1, characterized in that: It also includes a pipe sleeve, which is sleeved on the rear support leg and can slide freely along the central axis of the rear support leg; the end of the linkage rod of the locking structure passes through the pipe sleeve and is plugged into the rear support leg; the pipe sleeve is provided with a sliding hole that slides with the linkage rod, and the central axis of the sliding hole is perpendicular to the central axis of the rear support leg.

4. The small dining chair for infants and young children according to claim 1, characterized in that: It also comprises a dining board; two sides of the dining board are connected to the folding joints of the corresponding sides through corresponding dining supporting rods.

5. The small dining chair for infants and young children according to claim 1, characterized in that: The folding joint comprises a front foot connection piece, a rear foot connection piece, a support rod connection piece and a locking wheel whose central axes coincide with each other; the support rod connection piece is an annular structure and is located between the front foot connection piece and the rear foot connection piece; a circular groove is provided on the inner side surface of the rear foot connection piece, and a first tooth groove is arrayed on the arc surface of the circular groove; the locking wheel is partially located in the support rod connection piece and partially located in the circular groove; An annular groove is provided on the support rod connecting member on one side close to the rear leg connecting member, and the maximum diameter of the annular groove is greater than the inner diameter of the support leg connecting member; the annular groove is provided with a second tooth groove in an annular array, and a second inclined surface is provided on one side of the second tooth groove; On the locking wheel, teeth are provided on a portion of the annular circumferential side surface close to the rear foot connecting piece; a second inclined surface for matching with the first inclined surface is provided on one side of the teeth close to the front foot connecting piece, and the first inclined surface and the second inclined surface are slidably matched; on the locking wheel, a sliding groove with an inner inclined surface is provided on the side surface close to the front foot connecting piece; On the front foot connecting piece, a sliding protrusion matched with the sliding groove is provided on the side close to the locking wheel, and an outer inclined surface matched with the inner inclined surface is provided on the sliding protrusion; When the front foot connecting member and the rear foot connecting member are in a locked state, the sliding protrusion is located in the sliding groove, and the teeth on the locking wheel span the first tooth groove and the second tooth groove.

6. The small dining chair for infants and young children according to claim 5, characterized in that: A first spring is arranged between the circular groove and the locking wheel.

7. The small dining chair for infants and young children according to claim 1, characterized in that: One side of the upper end of the backing plate is connected to the folding joint through a connecting rod, one end of the connecting rod is hinged to the backing plate, and the other end of the connecting rod is hinged to the folding joint.

8. The small dining chair for infants and young children according to claim 1, characterized in that: The front support legs and the rear support legs are both lifting rod structures, which include an inner rod and an outer tube; the central axes of the inner rod and the outer tube coincide and are slidably matched; the inner rod is provided with an elastic pin, and the outer tube is provided with a plurality of pin holes corresponding to the elastic pin.

9. The small dining chair for infants and young children according to claim 2, characterized in that: The linkage rod comprises an insertion rod and a spring pressure rod; one end of the spring pressure rod is hooked on the action slide plate, and the other end is connected to the insertion rod; a second spring is arranged between the spring pressure rod and the spring support of the seat plate.

10. The small dining chair for infants and young children according to claim 5, characterized in that: The sliding protrusion and the sliding groove are both located on the same circular ring; the dining support rod and the support rod connecting piece are slidably matched, and the two are respectively provided with corresponding second elastic pins and second pin holes.

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