CN204889346U - Children's chair chassis - Google Patents

Abstract

The utility model provides a children's chair chassis, includes fixed baseplate and adjustment mechanism, fixed baseplate include the bedplate connection pad, have a plurality of gear hole's gear plate, cushion backup pad, tapering pipe holder and be used for with the tapering pipe of the lifter rigid coupling of chair, the sloping plane on gear plate, slope and the slot that cushion support hoarding becomes to place adjustment mechanism, adjustment mechanism includes the back connecting plate, adjusts hand (hold), reset spring and gear piece, and the both sides of back connecting plate are equipped with the first spout that is used for restricting gear piece motion path, and the end that inserts of gear piece supports at first spout tank bottom with reset spring's one end rigid coupling, reset spring's the other end, adjusting the hand (hold) and arranging in between back connecting plate and the gear plate, the section of the inserting both sides of adjusting the hand (hold) are equipped with the bevel connection groove. The beneficial effects of the utility model are that: realized the seat of children's chairs dark with the dual regulation of holding in the palm the waist height, have simple structure, convenient operation's characteristics, can satisfy children's the growth needs and the demand in market.

Description

Chassis of a children's chair

technical field

The utility model relates to a chassis of a children's chair.

Background technique

With the continuous development of the economy and society and the continuous improvement of living standards, people spend more and more energy on the cultivation and care of children. According to the survey, many families are willing to equip their children with a comfortable children's chair. The chassis of children's chairs is one of the core components of children's chairs. Most of the chassis of children's chairs currently on the market have single functions and do not have the functions of seat depth adjustment and waist height adjustment, which cannot meet the needs of children at different growth stages, that is, Saying that a child's chair can only meet the needs of a child's growth stage will not only cause a waste of resources, but also increase the consumption pressure on the family. Therefore, designing a child's chair chassis with adjustable sitting depth and waist height can meet market demand.

Contents of the invention

The utility model aims at the problem that the chassis of the current children's chair has a single function and does not have the functions of adjusting the sitting depth and the height of the waist support, and proposes a chassis of the children's chair with the adjustment of the sitting depth and the height of the waist support.

The chassis of a children's chair according to the utility model is characterized in that it includes a fixed base and an adjustment mechanism, and the fixed base includes a seat plate connection plate, a gear plate with a plurality of gear holes, and a pad A support plate, a tapered tube bracket and a tapered tube used to be fixedly connected to the lifting rod of the chair, the bottom of the seat plate connection plate is provided with a slope; the bottom of the slope plane of the slope is equipped with the gear plate; The bottom of the gear plate is fixed to the pad support plate through screws; the slope plane of the slope is provided with an installation through hole for inserting a tapered pipe, and the above installation through hole is covered with a tapered pipe bracket The tapered pipe bracket is equipped with a tapered pipe hole coaxial with the installation through hole, the edge of the through hole of the tapered pipe bracket is fixedly connected to the upper end of the tapered pipe, and the lower part of the tapered pipe is fixed to the slope. connected, and the bottom end of the tapered tube runs through the slope and is affixed to the lifting rod of the children's chair; the gear plate, the slope plane of the slope and the pad support plate surround the adjustment body slot;

The adjustment mechanism includes a backrest connection plate, an adjustment handle, a return spring and a gear block. The two sides of the backrest connection plate are provided with a first chute for limiting the movement path of the gear block. The gear block The insertion end of the return spring abuts against one end of the return spring, and the other end of the return spring abuts against the bottom of the first chute, and the return spring is in a natural state, and the position block exposes the first The part of the chute is snapped into the gear hole; the adjustment handle is placed between the backrest connecting plate and the gear plate, and the two sides of the insertion section of the adjustment handle A slanted slot is provided, and the notch of the slanted slot is located directly below the notch of the first chute; the positioning block at the bottom of the shift block snaps into the slanted slot.

The gear plate is perpendicular to the slope plane of the slope.

The slope is a hollow slope, and the lateral longitudinal section of the slope is an inverted triangle.

The gear holes on the gear plate are distributed along the central axis of the gear plate, and the vertical heights of the gear holes distributed along the direction from the side close to the seat back to the side away from the seat back decrease gradually.

The central axis where the gear hole is located forms an included angle of 20 degrees with the horizontal direction.

The number of the gear holes is five.

The shift block is cross-shaped, and one end of the shift block connected to the return spring is provided with a positioning hole, and one end of the return spring extends into the positioning hole.

The adjusting handle is T-shaped, and the force application end of the adjusting handle is bent downward.

A slide block for drag reduction is installed on the backrest connection plate, and the slide block is buckled into the backrest connection plate through the barb at the bottom of the slide block.

The bottom of the insertion section of the adjusting handle is provided with a plurality of convex lines distributed along the moving direction of the adjusting handle.

A spacer for drag reduction is installed on the spacer support plate, and the spacer is snapped into a slot of the spacer support plate through a protrusion at the bottom of the spacer.

Working principle: From the low gear to the high gear stage, the fixed base is still, and the gear block is stuck on a certain gear on the gear plate. At this time, pull the adjustment handle, and the inclined groove on the adjustment handle will push The positioning block on the gear block moves to the bottom of the inclined groove, thereby driving the gear block to move, because the gear block is limited in the first chute along the backrest connecting plate, and along the direction of the first chute Sliding, so the gear block will slide along the sliding slot on the backrest connecting plate and compress the return spring until the gear block is completely disengaged from the gear on the gear plate, the adjustment mechanism can be distributed along the direction of the gear hole Moving upwards, since the backrest connecting plate is connected to the backrest, when the adjustment mechanism moves upwards, the backrest also moves upwards along the distribution direction of the gear holes, and because the distribution direction of the gear holes is at an angle of 20 degrees to the horizontal direction, Therefore, when the backrest moves upwards, both the sitting depth adjustment and the waist height adjustment are realized. When the backrest is near a higher gear position, the adjustment handle is gradually relaxed, and the gear block is close to the gear position under the return elastic force of the return spring. On the inner side of the board, when the gear block is locked into a certain gear again, loosen the adjustment handle completely, and a gear adjustment is completed; on the contrary, when adjusting from a high gear to a low gear, operate the adjustment handle in the same way, just move The direction is opposite to the above direction.

The beneficial effects of the utility model are: the double adjustment of the sitting depth and waist height of the children's chair is realized through a children's chair chassis, which has the characteristics of simple structure and convenient operation, and can meet the growth needs of children and the needs of the market.

Description of drawings

Fig. 1 is an expanded view of the internal structure of the utility model.

Fig. 2 is a schematic diagram of the overall structure of the utility model.

Fig. 3 is the front view of the utility model when the lowest gear (the gear hole farthest from the chair back is the lowest gear, and the nearest gear hole from the chair back is the highest gear).

Fig. 4 is a left view of the utility model when it is in the lowest gear.

Fig. 5 is a top view of the utility model at the lowest gear.

Fig. 6 is a first schematic diagram of the adjustment mechanism of the present invention.

Fig. 7 is the second schematic diagram of the adjustment mechanism of the present invention.

Detailed ways

Further illustrate the utility model below in conjunction with accompanying drawing

Referring to the attached picture:

Embodiment 1 The chassis of a children's chair described in the present utility model includes a fixed base and an adjustment mechanism. The fixed base includes a seat plate connection plate 1, a gear plate 6 with a plurality of gear holes 61, Pad block support plate 12, tapered pipe bracket 2 and tapered pipe 3 for affixed connection with the lifting rod of the chair, the bottom of the seat plate connecting plate 1 is provided with a slope 13; the bottom of the slope plane 131 of the slope 13 Weld the two shift plates 6; the bottom of the shift plates 6 is affixed to the pad support plate 12 through screws 10; the slope plane 131 of the slope 13 is provided with a tapered pipe 3, the installation through hole above the tapered pipe support 2 is covered, and the tapered pipe support 2 is equipped with a tapered pipe hole coaxial with the installation through hole, and the edge of the tapered pipe support through hole is in line with the The upper end of the tapered pipe 3 is welded, the lower part of the tapered pipe 3 is welded to the slope 13, and the bottom end of the tapered pipe 3 runs through the slope and is affixed to the lifting rod of the children's chair; the gear plate 6, The slope plane 131 of the slope 13 and the pad support plate 12 enclose the slot 14 for placing the adjustment mechanism;

The adjustment mechanism includes a backrest connection plate 7, an adjustment handle 8, a return spring 9 and a gear block 11, and the two sides of the backrest connection plate 7 are provided with a first chute 71 for limiting the movement path of the gear block 11 , the insertion end of the shift block 11 abuts against one end of the return spring 9, and the other end of the return spring 9 abuts against the bottom of the first chute 71, and the return spring 9 is in a natural position. In this state, the part of the shift block 6 exposed from the first chute 71 is snapped into the shift hole 61; the adjustment handle 8 is placed on the back connecting plate 7 and the shift Between the bit plates 6, and both sides of the insertion section of the adjustment handle 8 are provided with oblique grooves 81, and the notches of the oblique grooves 81 are located directly below the notches of the first chute 71 ; The positioning block 111 at the bottom of the shift block 11 snaps into the inclined groove 81 .

The gear plate 6 is perpendicular to the slope plane of the slope 13 .

The slope 13 is a hollow slope, and the lateral longitudinal section of the slope 13 is an inverted triangle.

The shift holes 61 on the shift plate 6 are distributed along the central axis of the shift plate, and the longitudinal heights of the shift holes 61 distributed along the direction close to the seat back to the direction away from the seat back decrease gradually.

The central axis where the shift hole 61 is located forms an included angle of 20 degrees with the horizontal direction.

The number of the gear holes 61 is five.

The shift block 11 is cross-shaped, and one end of the shift block 11 connected to the return spring 9 is provided with a positioning hole, and one end of the return spring 9 extends into the positioning hole.

The adjustment handle 8 is T-shaped, and the force application end of the adjustment handle 8 is bent downward.

A slide block 5 for drag reduction is installed on the backrest connection plate 7, and the slide block 5 is buckled into the through hole of the backrest connection plate 7 through the barb 81 at the bottom of the slide block.

The bottom of the insertion section of the adjusting handle 8 is provided with a plurality of convex strips 82 distributed along the moving direction of the adjusting handle.

The spacer 4 used for drag reduction is installed on the spacer support plate 12 , and the spacer 4 is snapped into the slot of the spacer support plate 12 through the protrusion at the bottom of the spacer 4 .

Working principle: From the low gear to the high gear stage, the fixed base is still, and the gear block 11 is stuck on a certain gear on the gear plate 6. At this time, pull the adjustment handle 8, adjust the handle 8 The inclined groove 81 pushes the positioning block 111 on the shift block 11 to move to the bottom of the inclined groove 81, thereby driving the shift block 11 to move. chute 71, and slide along the direction of the first chute 71, so the gear block 11 will slide along the chute opening on the backrest connecting plate 7 and compress the return spring 9 until the gear block 11 is completely out of the gear plate 6 When the upper gear disengages, the adjustment mechanism can move upwards along the distribution direction of the gear hole 61. Since the backrest connecting plate 7 is connected to the backrest, when the adjustment mechanism moves upwards, the backrest is sandwiched between the cushion block and the slider. and move upwards along the distribution direction of the gear holes, and because the distribution direction of the gear holes is at an angle of 20 degrees to the horizontal direction, when the backrest moves upwards, both the sitting depth adjustment and the waist height adjustment can be realized. When a certain higher gear is near, gradually loosen the adjustment handle, and the gear block 11 is close to the inner surface of the gear plate under the return elastic force of the return spring. When the gear block 11 is stuck into a certain gear again, the Loosen the adjusting handle, and one gear adjustment is completed; on the contrary, when adjusting from a high gear to a low gear, operate the adjusting handle in the same way, but the moving direction is opposite to the above direction.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the utility model also includes Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (10)

1. A children's chair chassis, characterized in that: it includes a fixed base and an adjustment mechanism, and the fixed base includes a seat plate connection plate, a gear plate with a plurality of gear holes, a pad support plate, a taper The pipe bracket and the tapered pipe used to be fixedly connected with the lifting rod of the chair, the bottom of the connecting plate of the seat plate is provided with a slope; the bottom of the slope plane of the slope is equipped with the gear plate; the gear The bottom of the bit plate is fixed to the pad support plate through screws; the slope plane of the slope is provided with an installation through hole for inserting a tapered pipe, and the above described installation through hole is covered with a tapered pipe bracket. The tapered pipe bracket is equipped with a tapered pipe hole coaxial with the installation through hole, the edge of the through hole of the tapered pipe bracket is affixed to the upper end of the tapered pipe, the lower part of the tapered pipe is affixed to the slope, and the The bottom end of the above-mentioned tapered tube runs through the slope and is fixedly connected to the lifting rod of the children's chair; the above-mentioned gear plate, the slope plane of the above-mentioned slope and the above-mentioned pad support plate form a slot for placing the above-mentioned adjustment mechanism ; The adjustment mechanism includes a backrest connection plate, an adjustment handle, a return spring and a gear block. The two sides of the backrest connection plate are provided with a first chute for limiting the movement path of the gear block. The gear block The insertion end of the return spring abuts against one end of the return spring, and the other end of the return spring abuts against the bottom of the first chute, and the return spring is in a natural state, and the position block exposes the first The part of the chute is snapped into the gear hole; the adjustment handle is placed between the backrest connecting plate and the gear plate, and the two sides of the insertion section of the adjustment handle A slanted slot is provided, and the notch of the slanted slot is located directly below the notch of the first chute; the positioning block at the bottom of the shift block snaps into the slanted slot. 2. The chassis of a children's chair according to claim 1, wherein the slope is a hollow slope, and the lateral longitudinal section of the slope is an inverted triangle. 3. The chassis of a children's chair according to claim 1, wherein the gear holes on the gear plate are distributed along the central axis of the gear plate, and are away from the back of the chair along the direction close to the back of the chair. The longitudinal height of the gear holes distributed in the side direction decreases gradually. 4. The chassis of a children's chair according to claim 3, wherein the central axis where the gear hole is located forms an angle of 20 degrees with the horizontal direction. 5. The chassis of a children's chair as claimed in claim 4, wherein the number of said gear holes is five. 6. The chassis of a children's chair as claimed in claim 1, wherein the shift block is cross-shaped, and the end of the shift block connected to the return spring is provided with a positioning hole, and the One end of the return spring extends into the positioning hole. 7 . The chassis of a children's chair according to claim 1 , wherein the adjustment handle is T-shaped, and the force application end of the adjustment handle is bent downward. 8. The chassis of a children's chair according to claim 1, wherein a slider for drag reduction is installed on the backrest connecting plate, and the slider is buckled into the backrest through the barb at the bottom of the slider connection board. 9 . The chassis of a children's chair according to claim 7 , wherein the bottom of the insertion section of the adjusting handle is provided with a plurality of convex lines distributed along the moving direction of the adjusting handle. 10. The chassis of a children's chair according to claim 1, wherein a cushion block for drag reduction is installed on the support plate of the cushion block, and the cushion block is clamped by the bump at the bottom of the cushion block Insert it into the slot of the spacer support plate.