CN218468007U - Leg frame connecting structure for child dining chair - Google Patents

Abstract

The utility model relates to a leg frame connection structure for children's dining chair, it includes the lateral part support, and the lateral part support includes that constitution forked preceding leg brace and back leg brace, and preceding leg brace and back leg brace are pegged graft through the unsmooth cooperation structure that matches mutually to it is fixed through threaded connection in the threaded fastener on the unsmooth cooperation structure, the fitting surface of unsmooth cooperation structure is the non-disc. This technical scheme's children dining chair is in the unsmooth cooperation structure on preceding leg brace and the back leg brace for overall structure is reasonable, has firm support nature, also is difficult to damage when using repeatedly for a long time, ensures that dining chair life is not influenced, and service function can long-term performance.

Description

Leg frame connecting structure for child dining chair

Technical Field

The utility model relates to a meal kitchen apparatus technical field, more specifically say that a leg frame connection structure for children's dining chair

Background

The child dining chair is mainly used for low-age children to eat instead of a conventional dining chair, the height of the seat of the child dining chair is higher than that of the conventional dining chair, and the child dining chair is also provided with a footrest, so that the low-age children can be helped to eat better by using the child dining chair, the independent eating capacity is developed, and good living habits are developed.

Further, as disclosed in CN209898871U, the patent name "child dining chair" describes an adjustable child dining chair, in which the seat plate of the seat assembly is movably connected to the backrest and detachably connected to the frame of the dining chair, when the child dining chair is not needed, the backrest and the seat plate can be respectively detached from the frame of the dining chair and then folded, the leg frame portion includes side frames, the side frames further include a frame rod and a rear support rod, the lower rod of the frame rod is connected to the rear support rod which is inclined backwards and downwards, but the connection position of the lower rod and the rear support rod can be regarded as nearly a point compared with the overall length of the lower rod and the rear support rod, so that the structure of the side frames is unstable as the same as that of the child dining chair, and the connection position of the lower rod and the rear support rod is easily broken when the child dining chair is used for a long time, so that the dining chair cannot be used continuously, and the overall service life is affected.

SUMMERY OF THE UTILITY MODEL

To above circumstances, there is the leg frame structure insecure for overcoming the children dining chair among the above-mentioned prior art, easily appears the pine when long-time atress and takes off, the fracture, causes the dining chair can't continue to use, influences whole life, is difficult to exert its service function's problem, the utility model aims at providing a leg frame connection structure for children dining chair, overall structure is reasonable, has firm support nature, also is difficult to damage when using repeatedly for a long time, ensures that dining chair life is not influenced, and service function can long-term performance.

In order to achieve the above object, the technical solution of the present invention is:

the utility model provides a leg frame connection structure for children's dining chair, it includes the lateral part support, and the lateral part support is including constituting forked preceding leg and the back leg that props, and preceding leg and back leg prop the unsmooth cooperation structure of leg through the matching and peg graft mutually to it is fixed through threaded fastener of threaded connection on the unsmooth cooperation structure, and the fitting surface of unsmooth cooperation structure is the non-circular face.

Preferably, the concave-convex matching structure comprises a limiting convex block and a limiting clamping groove which are respectively formed on the front supporting leg and the rear supporting leg, the limiting convex block is in plug-in fit with the limiting clamping groove, and the threaded fastener penetrates through the limiting clamping groove and is in threaded connection with the limiting convex block.

Preferably, the limiting convex blocks and the limiting clamping grooves matched with the limiting convex blocks are arranged in an inclined mode relative to the horizontal plane, and the inclined angles are consistent with those of the rear supporting legs.

Preferably, the limiting convex block and the limiting clamping groove are both oval in shape.

Preferably, the rear support leg is provided with a cover, and one side of the threaded fastener close to the rear support leg is covered by the cover.

Preferably, the rear support leg is provided with a receiving groove, an embedded groove is formed in the receiving groove along the direction of the outer edge of the rear support leg, the covering cover is received by the receiving groove, and the outer edge of the covering cover is inserted into the embedded groove.

Preferably, the outer side walls of the front supporting leg and the rear supporting leg are both arc surfaces.

Preferably, the front and rear legs are made of rigid plastic.

Preferably, two sets of the side frames are arranged, the front legs of the side frames are connected by the front cross member, and the rear legs of the side frames are connected by the rear cross member.

Compared with the prior art, the utility model has the advantages of:

the front supporting leg and the back supporting leg of the utility model are limited to freely move in the direction vertical to the horizontal plane through the concave-convex matching structure, and the concave-convex matching structure increases the contact position area of the front supporting leg and the back supporting leg, namely correspondingly increases the stress area, and can also obviously reduce the possibility of loosening and even breaking of the butt joint due to deformation under the condition of long-term repeated use, thereby prolonging the service life of the child dining chair with the structure and ensuring that the use function can be exerted for a long time,

preceding leg brace and back brace still are fixed through threaded connection in the threaded fastener on unsmooth cooperation structure, it compresses tightly the back brace in preceding leg brace to pass through threaded fastener, with this restriction in the free removal of horizontal direction each other, and simultaneously, the fitting surface of preceding leg brace and the unsmooth cooperation structure of back brace is the non-circular face, rotation when being connected with the back brace with this restriction preceding leg brace, avoid and put the triangle-shaped bearing structure that forms between the face and receive destruction, and then provide more firm, safer support for the children who takes a seat and have dinner.

Drawings

FIG. 1 is a schematic view of the overall structure of the leg frame structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the side frame body of the leg frame structure of the present invention;

FIG. 3 is an exploded view of the side frame of the leg frame of the present invention;

FIG. 4 is a schematic cross-sectional view of the side frame of the leg frame structure of the present invention at the position of the cover;

FIG. 5 is a schematic view of the overall structure of the front leg of the side frame body of the leg frame structure of the present invention;

fig. 6 is a schematic view of the overall structure of the rear support leg of the side frame body of the leg frame structure of the present invention;

figure 7 is a schematic view of the whole structure of the child dining chair with the leg structure of the present invention.

As shown in the figure:

1. front support legs; 101. a limiting bump; 2. back support legs; 201. a limiting clamping groove; 202. a receiving groove; 203. a groove is embedded; 3. a threaded fastener; 4. a cover for covering; 5. a front cross member; 6. a rear cross member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the product of the present invention is used, and are only for the convenience of simplifying the description, but not for indicating or suggesting the specific directions and the specific direction configurations and operations that the directions must have, and therefore, the present invention should not be construed as being limited.

As shown in fig. 1 to 7, a leg frame connecting structure for a child dining chair comprises a side frame including a front leg 1 and a rear leg 2, the front leg 1 and the rear leg 2 are bifurcated to form a triangular stable supporting structure with a placing surface when placing, so as to ensure stable support of a child when the child is seated, wherein the front leg 1 and the rear leg 2 are inserted and connected by a matching male-female fitting structure, it can be understood that the male-female fitting structure can be a protrusion formed on the front leg 1 and a matching recess formed on the opposite surface of the rear leg 2, or a recess formed on the front leg 1 and a matching protrusion formed on the opposite surface of the rear leg 2, without any particular limitation, and the free movement of the front leg 1 and the rear leg 2 in a vertical horizontal plane direction can be limited by the male-female fitting structure, the concave-convex matching structure increases the contact area of the front supporting leg 1 and the back supporting leg 2, namely correspondingly increases the stress area, can also obviously reduce the possibility of loosening and even breaking of the butt joint due to deformation under the condition of long-term repeated use, further prolongs the service life of the child dining chair with the structure, ensures that the service function can be exerted for a long time, in addition, the front supporting leg 1 and the back supporting leg 2 are further fixed by a threaded fastener 3 which is connected to the concave-convex matching structure through threads, the back supporting leg 2 is pressed on the front supporting leg 1 through the threaded fastener 3, so as to limit free movement in the horizontal direction, and it needs to be mentioned that the matching surface of the concave-convex matching structure of the front supporting leg 1 and the back supporting leg 2 is a non-circular surface, so as to limit mutual rotation when the front supporting leg 1 is connected with the back supporting leg 2, and avoid the triangular supporting structure formed between the placing surface from being damaged, thereby providing a more secure and safer support for the child sitting for eating.

As shown in fig. 3 to 5, prescribe a limit to the position of unsmooth cooperation structure here, the utility model discloses in, unsmooth cooperation structure is including forming spacing lug 101 and spacing draw-in groove 201 on preceding leg brace 1 and back leg brace 2 respectively, and spacing lug 101 is pegged graft with spacing draw-in groove 201 and is cooperated, and threaded fastener 3 runs through spacing draw-in groove 201 and spacing lug 101 threaded connection, and threaded fastener 3 is close to one side of back leg brace 2 and exposes in the field of vision.

As shown in fig. 3 and 5, the limiting convex block 101 and the limiting clamping groove 201 matched with the limiting convex block are obliquely arranged relative to the horizontal plane, and the oblique angle is consistent with that of the back support leg 2, so that the limiting convex block 101 is prevented from being pressed by the corner position, the matching surface of the limiting convex block 101 and the limiting clamping groove 201 is uniformly stressed, and the possibility of deformation is reduced.

As shown in fig. 3 and 5, the shapes of the limiting convex block 101 and the limiting clamping groove 201 are elliptical, and the elliptical setting ensures that the corner positions of the limiting convex block 101 and the limiting clamping groove 201 are rounded on the premise of ensuring the large matching surface of the limiting convex block 101 and the limiting clamping groove 201, so that the stress uniformity of the matching surfaces of the limiting convex block 101 and the limiting clamping groove 201 is further improved.

As shown in fig. 1 to 4 and fig. 7, be equipped with on the back support leg 2 and cover the decoration lid 4, threaded fastener 3 is close to one side of back support leg 2 and shields through covering the decoration lid 4, and threaded fastener 3 can show after covering through covering the decoration lid 4 and promote the configuration the utility model discloses the clean and tidy nature of leg frame structure children dining chair outward appearance, and then promote whole pleasing to the eye degree.

As shown in fig. 4 and 6, the rear support leg 2 is provided with a storage groove 202, the storage groove 202 is matched with the cover lid 4 in shape, the storage groove 202 is provided with an embedded groove 203 along the outer edge of the storage groove, the cover lid 4 is stored in the storage groove 202, and the outer edge of the storage groove is inserted into the embedded groove 203 for fixation, the cover lid 4 can be detached based on the connection mode of the insertion fit, after detachment, one end of the threaded fastener 3 close to the rear support leg 2 side is exposed in the field of view again, and then the front support leg 1 and the rear support leg 2 can be detached by separating or installing the threaded fastener 3.

As shown in fig. 1 to 3 and 5 to 7, the outer side walls of the front supporting leg 1 and the rear supporting leg 2 are both arc surfaces, the outer side wall of the side bracket, which is the arc surface, abuts against the placing surface, and the arrangement of the arc surfaces can reduce the abrasion of the side bracket during movement and collision to the maximum extent.

Furthermore, the front supporting leg 1 and the rear supporting leg 2 are made of hard plastics, and compared with the characteristics of softness and changeability of wood and high cost of metal, the plastics have the characteristics of low cost and hardness, can well resist obvious deformation caused by stress, and further improve the structural stability of the structure from the manufactured materials.

As shown in fig. 1 and 7, the side frames are arranged in two groups, the front legs 1 of the two side frames are connected by a front cross member 5, the rear legs 2 of the two side frames are connected by a rear cross member 6, and the front cross member 5 and the rear cross member 6 limit the distance between the two side frames, so that the seat, the dinner plate and the like of the child dining chair can be quickly fixed between the two side frames.

Combine fig. 1 to 7, the utility model discloses a when leg frame structure is used for children dining chair to go up, preceding leg 1 and back leg 2 through its lateral part support and the face of putting department of meeting, the lateral wall all configures to the preceding leg 1 and the back leg 2 of arc surface and can reduce leg structure's wearing and tearing, forked preceding leg 1 and back leg 2 and the face of putting form stable triangle-shaped bearing structure and provide stable support to children, spacing lug 101 and the unsmooth cooperation of spacing draw-in groove 201 on preceding leg 1 and the back leg 2, have great cooperation area, can prevent preceding leg 1, back leg 2 takes place the pine to take off or fracture because of taking place to warp in the butt position department, cooperation threaded fastener 3 makes preceding leg 1 and back leg 2's fixed more firm simultaneously, spacing draw-in groove 201 and spacing lug 101's turning position all adopt the lead the fillet setting, and spacing draw-in groove 101 still keep the inclination unanimous with back leg 2, can further reduce the inclination who causes each other, decorative cover 4 covers screw thread fastener 3 and closes up the back screw thread cover 202 and covers in the groove to carry out 202 and more to carry out the embedding groove and carry out children, make children pleasing to the eye the fastening piece 201, it is more to carry out the fastening piece 203.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims (9)

1. The utility model provides a leg frame connection structure for children dining chair, it includes the side support, its characterized in that, the side support is including constituting forked preceding leg (1) and back leg (2), preceding leg (1) and back leg (2) peg graft mutually through the unsmooth cooperation structure of matching, and through threaded connection in threaded fastener (3) on the unsmooth cooperation structure are fixed, the fitting surface of unsmooth cooperation structure is the non-circular face.

2. The leg frame connecting structure for a children's dining chair according to claim 1, wherein the male and female engaging structure comprises a limiting protrusion (101) and a limiting slot (201) respectively formed on the front supporting leg (1) and the rear supporting leg (2), the limiting protrusion (101) is engaged with the limiting slot (201), and the threaded fastener (3) is threaded with the limiting protrusion (101) through the limiting slot (201).

3. The leg connecting structure of a children's dining chair according to claim 2, wherein said limiting protrusion (101) and its matching limiting groove (201) are disposed at an angle relative to the horizontal plane, and the angle of inclination is consistent with the angle of inclination of the back support leg (2).

4. The leg connecting structure for children's dining chair according to claim 2, wherein the shape of the limiting protrusion (101) and the limiting groove (201) are oval.

5. A leg frame connecting structure for a children's dining chair according to claim 2, wherein the rear supporting leg (2) is provided with a cover (4), and one side of the threaded fastener (3) close to the rear supporting leg (2) is covered by the cover (4).

6. The leg frame connecting structure for a children's dining chair according to claim 5, wherein the rear support leg (2) is formed with a receiving groove (202), the receiving groove (202) is formed with an insertion groove (203) along an outer edge thereof, the cover (4) is received by the receiving groove (202), and the outer edge thereof is inserted into the insertion groove (203).

7. A leg frame connecting structure for a children's dining chair according to claim 1, wherein the outer side walls of the front supporting leg (1) and the rear supporting leg (2) are circular arc surfaces.

8. A leg connecting structure for a children's dining chair according to claim 1, wherein the front supporting leg (1) and the rear supporting leg (2) are made of hard plastic.

9. A leg joint structure for a children's dining chair according to claim 1, wherein said side frames are arranged in two sets, the front legs (1) of said side frames being connected by a front cross member (5), and the rear legs (2) of said side frames being connected by a rear cross member (6).

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