CN105167461B - A kind of children's chairs chassis - Google Patents

Abstract

A children's chair chassis, including a fixed base and an adjustment mechanism. The fixed base includes a seat plate connecting plate, a gear plate with a plurality of gear holes, a pad support plate, a tapered pipe bracket and a The tapered tube fixed to the lifting rod of the chair; the gear plate, the slope plane of the slope and the pad support plate enclose the slot for placing the adjustment mechanism; the adjustment mechanism includes a backrest connecting plate, an adjustment handle, a return spring and a gear block, Both sides of the backrest connection plate are provided with a first chute for limiting the movement path of the gear block. The insertion end of the gear block is fixedly connected to one end of the return spring, and the other end of the return spring is against the bottom of the first chute; adjust The handle is placed between the backrest connection plate and the gear plate, and oblique grooves are arranged on both sides of the insertion section of the adjustment handle. The beneficial effect of the invention is that: the double adjustment of the sitting depth and the height of the waist support of the children's chair is realized, the structure is simple, the operation is convenient, and the growth needs of children and the needs of the market can be met.

Description

Chassis of a children's chair

technical field

The invention 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. This 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

Aiming at the problem that the current chassis of children's chairs has single function and does not have the functions of adjusting sitting depth and height of waist support, the present invention proposes a chassis of children's chairs with adjustable sitting depth and height of waist support.

The chassis of a children's chair according to the present invention is characterized in that it includes a fixed base and an adjustment mechanism. Plate, tapered pipe bracket and 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 bottom of the gear plate is fixedly connected to the pad support plate by 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, and the lower part of the tapered pipe is affixed to the slope , 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 and place the adjustment mechanism the 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 present invention are: through a children's chair chassis, the double adjustment of the sitting depth and the height of the waist support of the children's chair is realized, the structure is simple, the operation is convenient, and the growth needs of children and the needs of the market can be met.

Description of drawings

Fig. 1 is an expanded view of the internal structure of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is the front view of the present invention when the lowest gear (the farthest gear hole 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 side view of the present invention in the lowest gear.

Figure 5 is a top view of the present invention 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 description

Further illustrate the present invention below in conjunction with accompanying drawing

Referring to the attached picture:

Embodiment 1 A children's chair chassis according to the present invention 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, a pad A support plate 12, a tapered pipe support 2 and a tapered pipe 3 for affixed connection with the lifting rod of the chair, the bottom of the seat plate connection plate 1 is provided with a slope 13; the bottom of the slope plane 131 of the slope 13 is welded The two gear plates 6; the bottom of the gear plate 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, the above described installation through hole covers the taper tube bracket 2, the taper tube bracket 2 is equipped with a taper tube hole coaxial with the installation through hole, the edge of the taper tube bracket through hole and the taper The upper end of the 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 The slope plane 131 of the slope 13 and the pad support plate 12 surround the slot 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.

The slide block 5 used 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 51 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 implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also includes those skilled in the art. Equivalent technical means conceivable according to the concept of the present invention.

Claims (10)

1. A kind of 1. children's chairs chassis, it is characterised in that：Including fixed pedestal and governor motion, described fixed pedestal includes seat board Terminal pad, the gear plate with multiple gear holes, cushion block supporting plate, taper pipe holder and for affixed with the elevating lever of chair Taper tube, described seat board connection tray bottom are provided with slope；The bottom of the slope plane on described slope is equipped with described gear plate； Described gear plate bottom is affixed by screw and described cushion block supporting plate；The slope plane on described slope, which is provided with, to be used to insert Enter the installation through-hole of taper tube, covering taper pipe holder above described installation through-hole, be furnished with described taper pipe holder with The coaxial taper pore of installation through-hole, described taper tube rack ventilating hole edge and affixed, the described taper tube in taper tube upper end The affixed and described taper tube bottom in bottom and described slope it is affixed through the elevating lever of slope and children's chairs；It is described Gear plate, described slope slope plane and described cushion block supporting plate surround the slot for placing described governor motion；

   The governor motion includes backrest connecting plate, adjusts hand handle, back-moving spring and gear block, and the two of described backrest connecting plate Side is provided with the first chute for being used for limiting gear block motion path, and the insertion end of described gear block is against described back-moving spring One end, the other end of described back-moving spring be against the first described chute bottom land, and back-moving spring is in the raw Under, the part that described gear block exposes the first chute is caught in described gear hole；Described regulation hand handle is placed in described Between backrest connecting plate and described gear plate, and the inserting paragraph both sides of described regulation hand handle are provided with angle groove, described The notch of angle groove is located at immediately below the notch of the first described chute；The locating piece of described gear block bottom is caught in described In angle groove.
2. A kind of 2. children's chairs chassis as claimed in claim 1, it is characterised in that：Described slope is hollow slope, and institute The lateral longitudinal section on the slope stated is del.
3. A kind of 3. children's chairs chassis as claimed in claim 1, it is characterised in that：Gear hole on described gear plate is along gear The axis distribution of plate, longitudinally highly successively decrease along the gear hole that chair back side directional spreding is laterally away from close to the chair back one.
4. A kind of 4. children's chairs chassis as claimed in claim 3, it is characterised in that：Axis and water where described gear hole Square in 20 degree of angles.
5. A kind of 5. children's chairs chassis as claimed in claim 4, it is characterised in that：The number of described gear hole is 5.
6. A kind of 6. children's chairs chassis as claimed in claim 1, it is characterised in that：Described gear block is cross, and institute One end that the gear block stated is connected with back-moving spring is provided with positioning hole, and described positioning hole is stretched into one end of described back-moving spring In.
7. A kind of 7. children's chairs chassis as claimed in claim 1, it is characterised in that：Described regulation hand handle is T-shaped, and is adjusted The force side of hand handle is bent downwardly.
8. A kind of 8. children's chairs chassis as claimed in claim 1, it is characterised in that：Installed on described backrest connecting plate for subtracting The sliding block of resistance, described sliding block are buckled on backrest connecting plate by the barb of slider bottom.
9. A kind of 9. children's chairs chassis as claimed in claim 7, it is characterised in that：The bottom of the inserting paragraph of described regulation hand handle Raised line provided with a plurality of moving direction distribution along regulation hand handle.
10. A kind of 10. children's chairs chassis as claimed in claim 1, it is characterised in that：Install and be used in described cushion block supporting plate The cushion block of drag reduction, and described cushion block is caught in by the salient point of cushion block bottom in the neck of cushion block supporting plate.