CN210852608U - Adjusting device of leaning part and child carrier - Google Patents

Abstract

The utility model discloses an adjusting device and children carrier of leaning on part, this adjusting device include the main curb plate that bears the weight of the part, be provided with arc-shaped groove adjustment tank and the folding groove that is located on same circumference on the curb plate, the adjustment tank with the folding groove keep apart each other, just the groove terminal surface of adjustment tank with the groove terminal surface shape of folding groove forms the two-stage ladder. The adjusting device of the leaning part saves space and is convenient to operate. The utility model discloses simultaneously disclose the children's carrier that contains this adjusting device.

Description

Adjusting device of leaning part and child carrier

Technical Field

The utility model relates to a children's carrier and lean on some adjustment mechanism thereof specifically indicates a have lean on some adjusting device and children's carrier of regulation and folding function concurrently.

Background

The child carrier includes a main carrying portion and a reclining portion hingedly connected to the main carrying portion to facilitate rotational adjustment of the reclining portion.

The existing reclining part is usually connected with the main bearing part in two ways, one way is to arrange a regulator between the reclining part and the main bearing part, and the regulator is used for regulating and controlling the rotation of the reclining part. The adjustment of the reclining portion by the adjuster is easy to operate and accurate to control, but the installation of the adjuster requires space occupation of the child carrier, which increases the volume of the folded child carrier and also increases the cost by the adjuster.

The other connection mode is that the leaning part is connected with the main bearing part through a hinge connection structure, the leaning part and the main bearing part are required to be provided with mechanical structures hinged with each other, the rotation of the leaning part relative to the main bearing part is realized through the hinge structure, meanwhile, a clamping part is required to be arranged to realize the positioning of the leaning part, the stroke of the clamping part is required to be controlled, and the leaning part is required to be locked or unlocked through the clamping part.

If the existing child carrier needs to realize the functions of backward adjustment of the leaning part and forward folding of the leaning part, two sets of adjusting mechanisms which are different in structure and operate independently need to be arranged to complete the functions, each set of adjusting mechanism corresponds to each clamping component, the strokes of the corresponding clamping components are controlled respectively, and the functions of backward adjustment of the leaning part and forward folding of the leaning part are realized independently. This results in a complicated structure of the adjusting mechanism, inconvenient operation and high production cost.

SUMMERY OF THE UTILITY MODEL

One of the objectives of the present invention is to provide an adjusting device with a leaning part having adjusting and folding functions, which saves space and is convenient to operate.

The above object of the present invention is achieved by the following technical solutions: an adjustment device for a reclining portion, comprising: the side plate comprises a main bearing part, wherein an arc groove adjusting groove and a folding groove which are positioned on the same circumference are arranged on the side plate, the adjusting groove and the folding groove are mutually isolated, and the groove end surface of the adjusting groove and the groove end surface of the folding groove form two-stage steps.

The utility model discloses an adjusting device of leaning part can realize the control of backward adjustment and folding second grade stroke forward to leaning part, and wherein the first order stroke is the stroke between the groove terminal surface of adjustment tank and the tank bottom surface, and the second grade stroke is the stroke between the groove terminal surface of adjustment tank and the groove terminal surface of folding tank.

The utility model also comprises an adjusting and operating unit and a clamping part leaning part, wherein the adjusting and operating unit is connected with the clamping part, and the clamping part is inserted into a hinged seat at the bottom of the leaning part and extends out; the protruding part of the clamping component, which extends out of the hinge seat, is positioned in the slotting range of the adjusting groove, the leaning part of the adjusting and operating unit can realize secondary stroke control on the clamping component, the primary stroke control is used for controlling the protruding part of the clamping component to generate a primary stroke far away from the side plate, and the primary stroke enables the end surface of the protruding part to be between the groove end surface and the groove bottom surface of the adjusting groove; and the second-stage stroke control controls the protruding part of the clamping component to generate a second-stage stroke far away from the side plate, and the second-stage stroke enables the end face of the protruding part to be higher than the groove end faces of the adjusting groove and the folding groove.

When the protruding part of the engaging member is disengaged from the locking hole, the rest portion is in an unlocked state. The end face of the extension part is located between the groove end face and the groove bottom face of the adjusting groove through the first-stage stroke, the extension part is enabled to be abutted to the groove wall when rotating to the limit positions of the two ends of the adjusting groove, the groove opening range of the adjusting groove limits the rotation adjusting angle of the leaning part, and the leaning part is guaranteed to be adjusted safely and reliably.

The end face of the protruding portion is higher than the end face of the groove of the adjusting groove through the second-stage stroke, the adjusting stroke of the leaning portion is increased, the protruding portion is not limited by the adjusting groove when the leaning portion rotates and can enter the folding groove from the adjusting groove, the leaning portion can be folded in a forward rotating mode through the second-stage stroke control, and the protruding portion can enter the adjusting groove from the folding groove again when the folding position is converted into the adjusting position.

When the adjusting and operating unit releases the control of the clamping component, the extending part of the clamping component moves along the direction close to the side plate; when the leaning part is positioned at the adjusting position, the protruding part is positioned in the adjusting groove, when the leaning part is rotated to the locking position, the protruding part is reinserted into the locking hole to be locked, and when the leaning part is positioned at the folding position, the protruding part is positioned in the folding groove.

The addition of the second stage of travel eliminates the difference in displacement between the adjusted position and the folded position of the recliner portion, ensuring that the recliner portion can be switched between the adjusted position and the folded position.

The utility model discloses in, articulated seat and the equal vertical setting of curb plate, the extension of block part is perpendicular articulated seat and curb plate, the adjustment tank is seted up the inboard of curb plate to be close to the outward flange.

The utility model discloses in, the adjustment tank with fold the rotation center of adjustment tank, folding groove, articulated seat and curb plate four coincides mutually, the backward pulling is adjusted when leaning on the part to adjust, and is rotatory folding forward when folding.

The utility model discloses in, the quantity of adjustment tank is a plurality ofly, wherein is closest the adjustment tank of folding groove is the perpendicular to the straight flute of curb plate, all the other adjustment tanks are equipped with the transition domatic.

As the utility model discloses an improvement, the attenuator has still been held in the folding groove, the attenuator includes sliding block and return spring, still leave the confession in the one end that is close to the adjustment tank behind the built-in sliding block of folding groove the reservation groove district that the extension got into, return spring's one end is fixed in the folding groove, and the other end is connected with the sliding block, the sliding block is convex elastic component, and when the folding lean on part of forward rotation, the extension that is located the folding groove bulldozes the sliding block, and the sliding block takes place deformation, and produced damping force can make lean on the part gently rotate foldingly, return spring promotes the sliding block and resets after the sliding block bulldozes the power and eliminates.

The utility model discloses in, the tip that the folding groove is close to the sliding block in the preformed groove district is provided with the locking step to the position of injecing the sliding block.

In the utility model, the adjusting and operating unit is a manual control type traction piece control structure, which comprises a limiting edge, an adjusting handle, a traction piece and an adjusting button, one end of the adjusting handle is a hinged end, the other end is a free end, the adjusting button is arranged on the adjusting handle and can reciprocate between the hinged end and the free end of the adjusting handle along the adjusting handle, the limit position of the hinged end close to the adjusting handle is the action position of the adjusting button, and the limit position of the hinged end far away from the adjusting handle is the non-action position of the adjusting button; the limiting edge is positioned in a path of the adjusting button in the action position rotating along with the adjusting handle, and one end of the traction piece is connected to the adjusting handle and moves along with the rotation of the adjusting handle; the end surfaces of the adjusting button and the adjusting handle facing the limiting edge are respectively acting surfaces, and the acting surface of the adjusting button protrudes out of the acting surface of the adjusting handle; the adjusting button located at the action position rotates along with the adjusting handle to the position where the action surface of the adjusting button abuts against the limiting edge so that the traction piece can generate displacement of the first-stage stroke, and the adjusting button located at the non-action position rotates along with the adjusting handle to the position where the action surface of the adjusting handle abuts against the limiting edge so that the traction piece can generate displacement of the second-stage stroke.

The utility model discloses an adjustment button position changes the rotation limit range of adjusting handle, realizes the multistage stroke that pulls of displacement volume by the restriction of adjusting handle rotation range to this. When the adjusting button is located at the working position, the adjusting button with a higher acting surface can be finally abutted against the limiting edge in the rotating process of the adjusting handle, the rotating limit amplitude of the adjusting handle is smaller, and the displacement for correspondingly driving the dragging part is smaller, so that the first-stage stroke of the dragging part is realized. When the adjusting button is located at the non-working position, the acting surface of the adjusting handle is directly abutted against the limiting edge, the rotating limit amplitude of the adjusting handle is larger, and the displacement of the correspondingly driven traction member is also larger, which is the second-stage stroke of the traction member.

The utility model discloses in, adjust the control unit and still include return spring, adjustment handle and adjustment button are connected respectively at return spring's both ends to keep adjustment button in this adjustment button's effect position. The user directly rotates the adjusting handle of the embodiment, so that the traction piece can generate a primary stroke; the user application of force overcomes return spring and removes adjustment button from the effect position to non-effect position, rotates the regulation handle this moment and can make the piece of drawing produce the second grade stroke, and after withdrawing external force, adjustment button is the return under return spring's effect.

In the utility model, the adjusting handle is hinged on the leaning part through a bolt, and the bolt is a hinged shaft of the adjusting handle; the bottom end of the traction piece gradually transits to 90 degrees, and the pulling force generated by pulling the traction piece by the adjusting handle is changed into inward transverse pulling force far away from the side plate along the width direction of the leaning part after being bent by 90 degrees.

The utility model discloses in, pull piece, block part, adjustment tank, folding groove be two sets to the axis of children's carrier is bilateral symmetry form setting as the center.

The utility model discloses in, the block part be the fastener of L shape, include the sill bar that sets up along leaning on partial width direction and the straight-bar that perpendicular leaning on partial setting, the sill bar is located the storage tank that leaning on partial edge width direction was seted up to through fixed lid cap seal, the extension be the embolus, the extension is connected perpendicularly on the straight-bar, the extension alternates the guiding hole that opens on the articulated seat and stretch out, the guiding hole is perpendicular articulated seat, the sill bar of block with the regulation manipulation unit link to each other, finally drive the extension through adjusting manipulation unit pulling sill bar and follow the axial displacement of guiding hole.

The utility model discloses in, the fastener is elastic recovery piece, the fastener has the block spring, and the one end of block spring is connected with the sill bar of fastener, and the other end is connected lean on in the part for resetting of fastener.

The second purpose of the utility model is to provide a children's carrier, this children's carrier not only can improve children's comfort level, saves space moreover, is convenient for deposit.

The utility model discloses a this purpose is realized through following technical scheme: contain above-mentioned children's carrier of leaning on partial adjusting device, characterized in that: the child carrier further comprises a main bearing part and a leaning part, the main bearing part is provided with a side plate, the leaning part is provided with an articulated seat, the articulated seat is articulated on the side plate, and the child carrier realizes the adjustment and the folding of the leaning part through the leaning part adjusting device.

Drawings

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

FIG. 1 is a perspective view of the child carrier of the present invention with the reclining portion in an upright position;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is a perspective view of the child carrier of the present invention, wherein the leaning portion is in a backward adjustment state, and the protruding portion of the engaging member is located in the adjustment groove;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is an exploded view of the upper structure of FIG. 6;

FIG. 8 is an exploded view of the lower structure of FIG. 6;

FIG. 9 is a view showing a state of the reclining portion adjusting device of the child carrier according to the present invention;

FIG. 10 is a view showing a state of use of the push-and-snap fastener of the child carrier of the present invention, wherein the snap fastener is engaged with the adjustment slot adjacent to the folding slot, and the leaning portion is in an upright state;

FIG. 11 is a cross-sectional view of the P-P step of FIG. 10;

fig. 12 is a schematic view of a partial structure of the child carrier of the present invention, showing a first-stage stroke of the protrusion, wherein the end surface of the protrusion is between the groove end surface of the adjustment groove and the groove bottom surface, and the leaning portion can be adjusted backward;

fig. 13 is a schematic view of a partial structure of the child carrier of the present invention, showing a second stage of the extension portion, wherein the end surface of the extension portion is higher than the end surface of the slot;

FIG. 14 is a partial schematic view of the child carrier of the present invention with the backrest portion folded forward and the extension portion within the slot;

FIG. 15 is a schematic view of a partial structure of the child carrier of the present invention, wherein the leaning portion is folded forward and the extension portion enters the folding slot;

fig. 16 is a schematic view of a partial structure of the child carrier of the present invention, without operating the adjustment control unit;

fig. 17 is a schematic view of a partial structure of the child carrier of the present invention, in which the adjustment handle rotates around the plug pin, and the extension portion of the engaging member is moved by the pulling member to generate a first-stage stroke away from the side plate;

fig. 18 is a schematic view of a partial structure of the child carrier of the present invention, wherein the adjusting button is pulled to move upward relative to the adjusting handle, the extension portion of the engaging member is driven by the pulling member to generate a first-stage stroke away from the side plate, and the return spring is compressed;

FIG. 19 is a rear view of the child carrier of the present invention, with the reclining portion in a forward folded position, with the extension of the engaging member located in the folding slot, and the extension of the engaging member pushing the sliding plastic block to rotate further;

FIG. 20 is a cross-sectional view C-C of FIG. 19;

FIG. 21 is a cross-sectional view taken along line D-D of FIG. 19;

FIG. 22 is a rear view of the child carrier of the present invention, with the reclining portion folded forward to the limit position and the extension of the engaging member pushing the sliding plastic block to rotate to the limit position;

FIG. 23 is a cross-sectional view E-E of FIG. 22;

fig. 24 is a sectional view F-F of fig. 22.

Detailed Description

As shown in fig. 1 to 24, the child carrier comprises a main bearing part 101, a leaning part 1 and a leaning part adjusting device, wherein the main bearing part 101 is provided with a side plate 8, the leaning part 1 is provided with a hinged seat 1a, the hinged seat 1a is hinged on the side plate 8, an operating piece 9 of a releasing mechanism is hinged on the leaning part 1, and a limiting edge 15 is fixed on the leaning part 1. The child carrier enables adjustment and folding of the reclining portion by the reclining portion adjustment device.

The utility model discloses a have regulation and folding function's leaning part adjusting device concurrently, including adjusting control unit, block part, adjustment tank 8a and folding tank 8d, adjust control unit and install on leaning part 1 of children's carrier, adjust control unit and be connected with block part, block part interlude leans on articulated seat 1a of part 1 bottom and stretches out; the adjusting groove 8a and the folding groove 8d are both arranged on a side plate 8 of the child carrier main bearing part 101 and are isolated from each other, the folding groove 8d is located in the front, the adjusting groove 8a is located in the rear, the side plate 8 is used for being hinged with the hinged seat 1a, the hinged shaft of the side plate and the hinged seat is a rivet 7, the extending part of the clamping part extending out of the hinged seat 1a is located in the slotting range of the adjusting groove 8a and is arranged in the adjusting groove 8a, and the hinged seat 1a and the clamping part rotate synchronously when rotating.

In this embodiment, the fastener 5 that the fastener is L shape, including the sill bar 51 that sets up along the 1 width direction of leaning on part and the straight-bar 52 that perpendicular leaning on part 1 set up, sill bar 51 is located leaning on part 1 along the storage tank 1c that the width direction was seted up, and cover through fixed lid 4, fixed lid 4 passes through screw 2 and installs on leaning on part 1, the extension is the key post 53, the extension is connected perpendicularly on straight-bar 52, the guide hole 1b that the extension alternates to open on articulated seat 1a and stretches out, the perpendicular articulated seat 1a of guide hole 1b, sill bar 51 and the regulation control unit of fastener 5 link to each other, through adjusting control unit pulling sill bar 51 and finally driving the axial displacement of extension along guide hole 1 b.

The engaging member 5 in this embodiment is an elastic restoring member, and the engaging member 5 has an engaging spring 6, one end of the engaging spring 6 is connected to the bottom rod 51 of the engaging member 5, and the other end is connected to the leaning portion 1 for restoring the engaging member 5.

In this embodiment, articulated seat 1a and the equal vertical setting of curb plate 8, articulated seat 1a is circular base, curb plate 8 is the circular slab, perpendicular articulated seat 1a and the curb plate 8 of the extension of block part, adjustment tank 8a sets up the inboard at curb plate 8, and be close to the outward flange, adjustment tank 8a and folded groove 8d are the circular arc groove, adjustment tank 8a, folded groove 8d, the centre of a circle of articulated seat 1a and curb plate 8 four coincides mutually, and adjustment tank 8a and folded groove 8d are located same circumference, and the groove terminal surface of folded groove 8d forms the two-stage ladder with the groove terminal surface shape of adjustment tank 8 a. The number of the adjusting grooves 8a is multiple, so as to meet the requirements of different inclination arrangements of the leaning part of the infant device, wherein the adjusting groove 8b closest to the folding groove 8d is vertical to the straight groove of the side plate 8, the adjusting groove 8a is the adjusting groove corresponding to the leaning part in the standing state and is arranged vertical to the straight groove of the side plate 8, and the stability of the leaning part in the standing state can be ensured; the remaining adjustment grooves 8a are provided with transition ramps for facilitating the projections of the snap-in parts to slide into these adjustment grooves 8a when adjusting the angle of inclination of the resting portion.

As a preferred embodiment, a damper is further accommodated in the folding groove 8d, the damper comprises a sliding plastic block 11 and a return spring 12, a reserved groove area 8e for the extension portion to enter is further reserved at one end close to the adjusting groove 8b after the sliding plastic block 11 is arranged in the folding groove 8d, a stop step 8f is arranged at the end of the reserved groove area 8e close to the sliding plastic block 11 of the folding groove 8d, to limit the position of the sliding plastic block 11, one end of the return spring 12 is fixed in the folding groove 8d, the other end is connected with the sliding plastic block 11, the sliding plastic block 11 is a circular arc-shaped elastic piece, when the folding leaning part is rotated forwards, the extension part in the folding groove 8d pushes the sliding plastic block 11, the sliding plastic block 11 deforms, the generated damping force can enable the leaning part to rotate and fold gently, and the return spring 12 pushes the sliding plastic block 11 to reset after the pushing force of the sliding plastic block 11 is eliminated.

In this embodiment, adjust the manipulation unit and can realize the control of second grade stroke to the clamping part, the first control is used for controlling the extension of clamping part along keeping away from the direction removal of curb plate 8, from deviating from, produce the first order stroke of keeping away from curb plate 8, the extension is in the unblock state from the back rest part 1 of deviating from, can rotate and adjust the rest part, and produced first order stroke makes the terminal surface of extension between the groove terminal surface and the tank bottom surface of adjustment tank 8a, as shown in fig. 12, make the extension all contradict with the cell wall when rotating to adjustment tank 8a both ends extreme position, the rotation angle of adjustment part has been injectd to the fluting scope of adjustment tank 8a, guarantee that the rest part adjusts safe and reliable.

The control controls the extending part of the clamping part to continue moving along the direction far away from the side plate 8 on the basis of the head control, a second-stage stroke far away from the side plate 8 is generated, the second-stage stroke is increased, the displacement difference between the adjusting position and the folding position of the leaning part is eliminated, the leaning part can be switched between the adjusting position and the folding position, this second-stage stroke makes the end face of the projecting portion higher than the groove end faces of the regulating groove 8a and the folding groove 8d, as shown in fig. 13, the protruding portion is not restricted by the adjustment groove 8a and the folding groove 8d when the reclining portion is rotated, can enter into the folding groove 8d, when the control of the engaging member by the adjustment operating unit is released after the protruding portion of the engaging member enters the folding groove 8d as shown in fig. 15, the leaning portion is rotated, and the protruding portion of the engaging member pushes the sliding plastic block 11 and the return spring 12, so that the leaning portion can be folded forward by rotation. When the leaning part is required to be converted from the folding position to the adjusting position, the clamping part is controlled by the adjusting and operating unit again, the end face of the protruding part of the clamping part is higher than the end faces of the folding groove 8d and the adjusting groove 8a, the folding groove 8d cannot cause obstruction to the protruding part of the clamping part when the leaning part rotates, and when the leaning part rotates from the folding position to the adjusting position, the control of the adjusting and operating unit to the clamping part is released, and the protruding part of the clamping part enters the adjusting groove 8a again. After the adjusting and operating unit releases the control of the clamping component, the leaning part is rotated, and the extending part of the clamping component moves along the direction close to the side plate 8; when the leaning part is positioned at the adjusting position, the protruding part is positioned in the adjusting groove 8a, and the protruding part is inserted into the inner locking part again when the leaning part rotates to the locking position; when the resting portion is in the folded position, the projection is located within the folding slot 8 d. The first-stage stroke and the second-stage stroke of the extending part of the clamping part, which are far away from the side plate 8, are controlled by the adjusting and controlling unit.

In this embodiment, the adjusting and operating unit is a manual control type traction piece control structure, and includes a limit edge 15, an adjusting handle 9, a traction piece 3, and an adjusting button 13, one end of the adjusting handle 9 is a hinged end, and the other end is a free end, the adjusting button 13 is disposed on the adjusting handle 9 and can reciprocate between the hinged end and the free end of the adjusting handle 9 along the adjusting handle 9, wherein the limit position of the adjusting button 13 near the hinged end of the adjusting handle 9 is an active position of the adjusting button 13, and the limit position of the adjusting button 13 far from the hinged end of the adjusting handle 9 is an inactive position of the adjusting button 13; the limit edge 15 is in the path of the rotation of the adjusting knob 13 in the active position with the adjusting knob 9, and one end of the pulling element 3 is connected to the adjusting knob 9 and is displaced with the rotation of the adjusting knob 9; the end surfaces of the adjusting button 13 and the adjusting handle 9 facing the limiting edge 15 are respectively acting surfaces, and the acting surface of the adjusting button 13 protrudes out of the acting surface of the adjusting handle 9; the adjusting button 13 located at the acting position rotates along with the adjusting handle 9 until the acting surface of the adjusting button 13 abuts against the limiting edge 15 so as to enable the traction piece 3 to generate displacement of a first-stage stroke, and the adjusting button 13 located at the non-acting position rotates along with the adjusting handle 9 until the acting surface of the adjusting handle 9 abuts against the limiting edge 15 so as to enable the traction piece 3 to generate displacement of a second-stage stroke. The two ends of the return spring 14 are respectively connected with the adjusting handle 9 and the adjusting button 13, and the return spring 14 keeps the adjusting button 13 at the action position of the adjusting button 13.

The bottom end of the pulling element 3 gradually transitions to 90 degrees, and the pulling force generated by pulling the pulling element 3 by the adjusting handle 9 is changed into an inward transverse pulling force far away from the side plate 8 along the width direction of the leaning part 1.

As a preferred embodiment, the towing member 3, the engaging member, the adjusting groove 8a, and the folding groove 8d are provided in two sets, and are provided symmetrically with respect to the central axis of the child carrier.

When the adjusting button 13 is located at the working position, as shown in fig. 17, the adjusting button 13 with a higher acting surface will be finally abutted against the limiting edge 15 in the process of rotating the adjusting handle 9, at this time, the rotation limit amplitude of the adjusting handle 9 is smaller, and the displacement amount correspondingly driving the dragging member 3 is also smaller, which is the first-stage stroke of the dragging member 3. When the adjusting button 13 is located at the non-operating position, as shown in fig. 18, the acting surface of the adjusting handle 9 directly abuts against the limiting edge 15, and at this time, the rotation limit amplitude of the adjusting handle 9 is large, and the displacement amount correspondingly driving the dragging member 3 is also large, which is the second-stage stroke of the dragging member 3. .

The utility model discloses a child carrier, leaning part is upright as shown in figure 1, at this time, the extension part of the fastening component is inserted in the vertical adjusting groove 8 b; when the first stage of the stroke of the leaning part is controlled by using the adjusting handle 9, the state diagram of the leaning part after backward adjustment is shown in FIG. 5; when the adjustment knob 13 is further used to control the second stage of the reclining portion, the reclining portion can be folded forward as shown in figures 19 and 20, and the fully folded state is shown in figure 22.

Claims (10)

1. An adjustment device for a reclining portion, comprising: the side plate comprises a main bearing part, wherein an arc groove adjusting groove and a folding groove which are positioned on the same circumference are arranged on the side plate, the adjusting groove and the folding groove are mutually isolated, and the groove end surface of the adjusting groove and the groove end surface of the folding groove form two-stage steps.

2. The adjustment device of a reclining part according to claim 1, wherein: the adjusting device also comprises an adjusting and operating unit and a clamping component leaning part, wherein the adjusting and operating unit is connected with the clamping component, and the clamping component is inserted into a hinged seat at the bottom of the leaning part and extends out; the protruding part of the clamping component, which extends out of the hinge seat, is positioned in the slotting range of the adjusting groove, the leaning part of the adjusting and operating unit can realize secondary stroke control on the clamping component, the primary stroke control is used for controlling the protruding part of the clamping component to generate a primary stroke far away from the side plate, and the primary stroke enables the end surface of the protruding part to be between the groove end surface and the groove bottom surface of the adjusting groove; and the second-stage stroke control controls the protruding part of the clamping component to generate a second-stage stroke far away from the side plate, and the second-stage stroke enables the end face of the protruding part to be higher than the groove end faces of the adjusting groove and the folding groove.

3. The adjustment device of a reclining part according to claim 2, wherein: the hinged seat and the side plate are both vertically arranged, the extending part of the clamping component is perpendicular to the hinged seat and the side plate, and the adjusting groove is formed in the inner side of the side plate and is close to the outer edge; the number of the adjusting grooves is multiple, wherein the adjusting groove closest to the folding groove is a straight groove perpendicular to the side plate, and the rest adjusting grooves are provided with transition slope surfaces.

4. The adjustment device of a reclining part according to claim 2, wherein: the adjusting groove and the rotating centers of the adjusting groove, the folding groove, the hinged seat and the side plate are overlapped, the leaning part is pulled backwards to be adjusted when being adjusted, and the leaning part is rotated forwards to be folded when being folded.

5. The adjustment device of a reclining part according to claim 2, wherein: the folding inslot has still been held the attenuator, the attenuator includes sliding block and return spring, still leave the confession behind the folding inslot built-in sliding block in the one end that is close to the adjustment tank the reserve groove district that the extension got into, the folding groove is provided with the locking step at the tip that the groove district is close to the sliding block of reserving to inject the position of sliding block, return spring's one end is fixed in the folding inslot, and the other end is connected with the sliding block, the sliding block is convex elastic component, and when the forward rotation folding lean on the part, the extension that is located the folding inslot bulldozes the sliding block, and the sliding block takes place deformation, and produced damping force can make lean on the part gently rotate foldingly, return spring promotes the sliding block and resets after bulldozing the power and eliminating.

6. The adjusting apparatus of a reclining part according to any one of claims 2 to 5, wherein: the adjusting and operating unit is a manual control type traction piece control structure and comprises a limiting edge, an adjusting handle, a traction piece and an adjusting button, one end of the adjusting handle is a hinged end, the other end of the adjusting handle is a free end, the adjusting button is arranged on the adjusting handle and can reciprocate between the hinged end and the free end of the adjusting handle along the adjusting handle, the limiting position of the adjusting button, which is close to the hinged end of the adjusting handle, is an acting position of the adjusting button, and the limiting position of the adjusting button, which is far away from the hinged end of the adjusting handle, is a non-acting position of the adjusting button; the limiting edge is positioned in a path of the adjusting button in the action position rotating along with the adjusting handle, and one end of the traction piece is connected to the adjusting handle and moves along with the rotation of the adjusting handle; the end surfaces of the adjusting button and the adjusting handle facing the limiting edge are respectively acting surfaces, and the acting surface of the adjusting button protrudes out of the acting surface of the adjusting handle; the adjusting button located at the action position rotates along with the adjusting handle to the position where the action surface of the adjusting button abuts against the limiting edge so that the traction piece can generate displacement of the first-stage stroke, and the adjusting button located at the non-action position rotates along with the adjusting handle to the position where the action surface of the adjusting handle abuts against the limiting edge so that the traction piece can generate displacement of the second-stage stroke.

7. The adjustment device of a reclining part according to claim 6, wherein: the adjusting and operating unit further comprises a return spring, and two ends of the return spring are respectively connected with the adjusting handle and the adjusting button and keep the adjusting button at the action position of the adjusting button; the adjusting handle is hinged to the leaning part through a bolt, and the bolt is a hinged shaft of the adjusting handle; the bottom end of the traction piece gradually transits to 90 degrees, and the pulling force generated by pulling the traction piece by the adjusting handle is changed into inward transverse pulling force far away from the side plate along the width direction of the leaning part after being bent by 90 degrees.

8. The adjusting apparatus of a reclining part according to any one of claims 2 to 5, wherein: the clamping component is an L-shaped clamping piece and comprises a bottom rod arranged along the width direction of the leaning part and a straight rod perpendicular to the leaning part, the bottom rod is located in a containing groove formed in the leaning part along the width direction and is covered and sealed through a fixing cover, the extending part is a bolt column and is perpendicularly connected to the straight rod, the extending part penetrates through a guide hole formed in the hinged seat and extends out of the guide hole, the guide hole is perpendicular to the hinged seat, the bottom rod of the clamping piece is connected with the adjusting and operating unit, and the extending part is finally driven to move axially through the adjusting and operating unit.

9. The adjustment device of a reclining part according to claim 8, wherein: the clamping piece is an elastic restoring piece and is provided with a clamping spring, one end of the clamping spring is connected with the bottom rod of the clamping piece, and the other end of the clamping spring is connected to the leaning part and used for resetting of the clamping piece.

10. A child carrier comprising a reclining portion adjustment device according to any of claims 1 to 9, wherein: the child carrier further comprises a main bearing part and a leaning part, the main bearing part is provided with a side plate, the leaning part is provided with an articulated seat, the articulated seat is articulated on the side plate, and the child carrier realizes the adjustment and the folding of the leaning part through the leaning part adjusting device.

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