CN112918541A - Children's article and backrest adjusting device thereof - Google Patents
Children's article and backrest adjusting device thereof Download PDFInfo
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- CN112918541A CN112918541A CN202110196696.XA CN202110196696A CN112918541A CN 112918541 A CN112918541 A CN 112918541A CN 202110196696 A CN202110196696 A CN 202110196696A CN 112918541 A CN112918541 A CN 112918541A
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- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 46
- 230000009471 action Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000033228 biological regulation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
- B62B9/104—Perambulator bodies; Equipment therefor characterized by details of the seat with adjustable or reclining backrests
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D13/00—Other nursery furniture
- A47D13/02—Baby-carriers; Carry-cots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
Abstract
The invention discloses a children article and a backrest adjusting device thereof, wherein the children article comprises a bracket and a backrest, and the backrest is rotationally connected to the bracket; the backrest adjusting device comprises an adjusting piece, a left adjusting belt and a right adjusting belt, and an adjusting component used for retracting the adjusting belts is arranged between each adjusting belt and the adjusting piece. One end of the adjusting belt is fixed on the bracket, and the other end is fixed on the backrest or the adjusting piece. The adjusting component at least comprises a first positioning piece which is relatively and fixedly arranged on the backrest, and the adjusting belt is wound on the first positioning piece. The adjusting belt is provided with a stretching section and a containing section which are connected along the length direction of the adjusting belt, the adjusting piece can be arranged on the backrest in a way of relative motion along the up-down direction of the backrest, and the adjusting piece slides up and down relative to the backrest to change the length of the containing section. The children article and the backrest adjusting device thereof can adjust the angle of the backrest by one hand, and are simple and convenient to operate; no redundant adjusting belt is exposed, and the appearance is good; the left side and the right side of the backrest are always flush in the rotating process.
Description
Technical Field
The invention relates to a children product and a backrest adjusting device thereof.
Background
Many children's products such as a stroller, a seat bag, a sleeping basket, etc. have a backrest for supporting the back of a child, and a device for adjusting the angle of the backrest is required according to different requirements of sitting, lying down, etc. when the child is seated. In the prior art, some backrest adjusting devices are arranged at two sides of a backrest, and need to be adjusted by two hands, so that the operation is inconvenient; some backrest adjustment devices can be operated with one hand only for one-way adjustment, and still require two-handed operation for adjustment in the other direction (usually rotation from the reclined position to the upright position). Chinese utility model patent CN206031454U discloses a baby carriage with a backrest adjustable by one hand, but its adjusting belt is exposed outside the backrest, and the more vertical the backrest, the longer the exposed length, the very beautiful effect.
Disclosure of Invention
The invention aims to provide a backrest adjusting device which can adjust the angle of a backrest by one hand and has an adjusting belt which is not exposed.
In order to achieve the purpose, the invention adopts the technical scheme that:
a backrest adjusting device of a children product comprises a support and a backrest, wherein the backrest is rotationally connected to the support, the backrest adjusting device comprises an adjusting piece arranged on the backrest and two groups of adjusting belts respectively arranged on the left side and the right side of the adjusting piece, and an adjusting assembly used for retracting and releasing the adjusting belts is arranged between each group of adjusting belts and the adjusting piece, wherein each adjusting belt is provided with a first fixing end and a second fixing end respectively arranged at two ends of the adjusting belt, which are different in length direction, the first fixing end is fixed on the support, and the second fixing end is fixed on the backrest or the adjusting piece; the adjusting assembly at least comprises a first positioning piece which is relatively and fixedly arranged on the backrest, and the adjusting belt is wound on the first positioning piece; the adjusting band has the tensile section that meets along self length direction and accomodates the section, tensile section sets up first stiff end with between the adjusting part, it sets up to accomodate the section adjusting part with between the second stiff end, the adjusting part can be followed the up-and-down direction relative motion ground of back is located on the back, the adjusting part is relative the back slides from top to bottom and makes the length of accomodating the section changes.
Preferably, the adjusting assembly further comprises a second positioning element, the second positioning element is fixedly arranged on the adjusting element, and the accommodating section alternately bypasses the first positioning element and the second positioning element.
Furthermore, all the first positioning parts and the second positioning parts are rollers, or are cylinders, or are any combination of rollers and cylinders.
Preferably, the backrest adjusting device further comprises a positioning belt, the positioning belt extends along the up-down direction of the backrest, the adjusting piece can be arranged on the positioning belt in a sliding manner along the length extending direction of the positioning belt, and the backrest adjusting device further comprises a locking mechanism used for locking the adjusting piece and the positioning belt relatively.
Furthermore, the backrest adjusting device further comprises a fixing piece, the fixing piece is fixedly arranged at one end part of the positioning belt, and the first positioning piece is fixedly arranged on the fixing piece.
Furthermore, the locking mechanism comprises a plurality of positioning teeth arranged on the positioning belt, the positioning teeth are arranged at intervals along the length extension direction of the positioning belt, the locking mechanism further comprises a locking block movably arranged on the adjusting piece, the locking block is provided with locking teeth matched with the positioning teeth, the adjusting piece is further provided with an unlocking structure used for driving the locking teeth to move away from the positioning teeth, and when the locking mechanism is in a locking state, the locking teeth are matched and locked with the positioning teeth; when the locking mechanism is in an unlocked state, the locking teeth are disengaged from the positioning teeth.
Furthermore, the lower surface of each positioning tooth is an inclined surface which gradually extends outwards in an inclined manner from bottom to top, and the upper surface of each locking tooth is an inclined surface which is matched with the lower surface of the positioning tooth; the upper surface of each positioning tooth is a horizontal plane, and the lower surface of each locking tooth is a horizontal plane matched with the lower surface of each positioning tooth.
Furthermore, the locking mechanism further comprises an elastic member for driving the locking teeth to move towards the positioning teeth, the locking block is provided with an unlocking part, the unlocking structure comprises an unlocking block, the unlocking block is movably arranged on the adjusting member, the unlocking block is provided with a pushing part matched with the unlocking part, when the locking mechanism is in a locking state, the pushing part is disengaged from the unlocking part, and the locking teeth are matched and locked with the positioning teeth under the action force of the elastic member; when the locking mechanism is in an unlocking state, the pushing part abuts against the unlocking part, and the locking teeth overcome the acting force of the elastic part and are disengaged from the positioning teeth.
Another object of the present invention is to provide a child article with a backrest that can be adjusted with one hand without exposing the adjustment strap.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a children's articles for use, children's articles for use include support and back, the support is including dividing two sets of collateral branch framves of locating the left and right sides to and be used for bearing children's supporting seat, the supporting seat sets up two sets of between the collateral branch frame, the back is connected with rotating the rear portion of supporting seat, children's articles for use still include back adjusting device, the regulation band is located the adjusting part left and right sides with between the collateral branch frame.
Preferably, the children's article is a stroller, a sleeping basket or a seat bag.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1) the adjusting piece can be controlled by one hand to move up and down, so that the backrest can rotate in two directions, the angle adjustment of the backrest is realized, and the operation is simple and convenient;
2) the accommodating section of the adjusting belt is positioned between the adjusting piece and the second fixed end, and the unnecessary part outside the backrest is not exposed, so that the accommodating section is completely wrapped in the cloth sleeve of the backrest in practical application, and the attractiveness and the practicability are ensured;
3) the left and right groups of adjusting belts and the adjusting component move synchronously, so that the left and right sides of the backrest are always parallel and level in the rotating process.
Drawings
FIG. 1 is a schematic front view of one embodiment of a child product and a backrest adjusting device thereof according to the present invention, wherein the backrest is in an upright position;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic side view of a child product and its backrest adjusting mechanism according to the first embodiment, wherein the backrest is in an upright position;
FIG. 4 is a schematic front view of the child product and its backrest adjusting device according to the first embodiment, in which the backrest is in a half-fallen state;
FIG. 5 is a schematic side view of the child product and its backrest adjusting unit in accordance with the first embodiment, wherein the backrest is in a half-reclined state;
FIG. 6 is a schematic front view of the child product and the backrest adjusting device thereof according to the first embodiment, wherein the backrest is in a flat state;
FIG. 7 is a schematic side view of a child product and its back rest adjustment mechanism according to a first embodiment, wherein the back rest is in a flat position;
FIG. 8 is a schematic view showing an internal structure of a backrest adjusting unit according to the first embodiment, in which an adjusting member is located at the uppermost position;
FIG. 9 is a schematic view showing an internal structure of a backrest adjusting unit according to the first embodiment, in which an adjusting member is located at a middle position;
FIG. 10 is a schematic view showing an internal structure of a backrest adjusting unit according to the first embodiment, in which an adjusting member is located at the lowermost position;
FIG. 11 is a cross-sectional view A-A of FIG. 8 with the locking device in a locked condition;
FIG. 12 is a cross-sectional view A-A of FIG. 8 with the locking device in an unlocked position;
FIG. 13 is a schematic view showing an inner structure of a backrest adjusting unit according to a second embodiment, in which an adjusting member is located at the uppermost position;
FIG. 14 is a schematic sectional view of a backrest adjusting means in a third embodiment, in which a locking means is in a locked state;
fig. 15 is a schematic sectional view of a backrest adjusting means in a third embodiment, in which a locking means is in an unlocked state;
FIG. 16 is a schematic view showing an inner structure of a backrest adjusting unit according to a fourth embodiment, in which a locking unit is in a locked state;
FIG. 17 is a schematic view showing an inner structure of a backrest adjusting unit according to a fourth embodiment, in which a locking unit is in a locked state;
FIG. 18 is a schematic cross-sectional view B-B of FIG. 16;
FIG. 19 is a schematic cross-sectional view of C-C of FIG. 17;
FIG. 20 is a schematic view showing an inner structure of a backrest adjusting unit according to a fifth embodiment, in which a locking unit is locked;
FIG. 21 is a schematic view showing an inner structure of a backrest adjusting unit according to a fifth embodiment, in which a locking unit is unlocked;
FIG. 22 is a schematic side view of a sixth embodiment of a child product and its back adjustment mechanism, wherein the back is in an upright position;
FIG. 23 is a schematic side view of a sixth embodiment of a child product and its back adjustment mechanism, wherein the back is in a semi-reclined position;
FIG. 24 is a schematic side view of a sixth embodiment of a child product and its back adjustment mechanism, wherein the back is in a flat position;
FIG. 25 is a schematic side view of a sixth embodiment of a child product mounted on a stroller;
FIG. 26 is a schematic side view of a seventh exemplary embodiment of a child product and its back adjustment mechanism, wherein the back is in an upright position;
FIG. 27 is a schematic side view of the seventh embodiment of the child product and its back adjustment mechanism, wherein the back is in a flat position;
FIG. 28 is a schematic side view of the child product of the seventh embodiment shown mounted on a stroller;
wherein: 100. a support; 101. a side bracket; 102. a supporting seat; 200. a backrest; 201. a guide member; 300. a backrest adjustment device;
1. an adjustment belt; 1a, a first fixed end; 1b, a second fixed end; 11. a stretching section; 12. a storage section; 2. an adjustment member; 21. a second positioning member; 3. a positioning belt; 31. positioning teeth; 4. a fixing member; 41. a first positioning member; 5. a locking block; 51. a locking tooth; 52. an unlocking portion; 6. unlocking the block; 61. a pushing part; 62. a handle portion; 7. an elastic member.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right", "height", "front-back" and the like indicate the orientation or positional relationship shown when an adult of a stroller holds a handlebar based on fig. 1, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, only a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.
Example one
Referring to fig. 1 to 7, a child product and a backrest adjusting device 300 thereof are disclosed, wherein the child product comprises a bracket 100 and a backrest 200, the backrest 200 is rotatably connected to the bracket 100, and the backrest adjusting device 300 can adjust a rotation angle of the backrest 200 relative to the bracket 100, so as to meet different requirements of a child for sitting, lying and the like.
In the present embodiment, taking the stroller as an example, the support 100 includes two sets of side supports 101 respectively disposed at the left and right sides, and a support 102 for supporting a child, the support 102 is specifically a seat, the support 102 is disposed between the two sets of side supports 101, and the backrest 200 is rotatably connected to the rear portion of the support 102.
The backrest adjusting device 300 comprises an adjusting part 2 arranged on the backrest 200 and two groups of adjusting belts 1 respectively arranged on the left side and the right side of the adjusting part 2, and an adjusting component for winding and unwinding the adjusting belts 1 is arranged between each group of adjusting belts 1 and the adjusting part 2, wherein the adjusting part 2 and the adjusting component are both arranged at the rear part of the backrest 200, so that the adult operation pushed at the rear part is facilitated; the adjustment belt 1 and the adjustment assembly are arranged in a left-right symmetrical manner, which makes the left and right sides of the backrest 200 always flush during rotation.
Referring to fig. 8, in this embodiment, the backrest adjusting device 300 further includes a positioning strap 3 and a fixing member 4, the positioning strap 3 extends along the up-down direction of the backrest 200, the adjusting member 2 is slidably disposed on the positioning strap 3 along the length extending direction of the positioning strap 3, the fixing member 4 is fixedly disposed at one end of the positioning strap 3, and the backrest adjusting device 300 further includes a locking mechanism for locking the adjusting member 2 and the positioning strap 3 relatively.
Specifically, the adjusting belt 1 has a first fixed end 1a and a second fixed end 1b respectively arranged at two different ends of the adjusting belt in the length direction, wherein the first fixed end 1a is fixed on the bracket 100, specifically, connected to the push rod frame in the side bracket 101; the second fixing part 1b is connected to the fixing part 4 or the adjusting part 2. The adjusting belt 1 has a stretching section 11 and a containing section 12 which are connected along the length direction of the adjusting belt, the stretching section 11 is arranged between the first fixed end 1a and the adjusting component, and the containing section 12 is arranged between the adjusting component and the second fixed end 1 b.
Each group of adjusting components comprises a first positioning part 41 fixedly arranged on the fixing part 4 and a second positioning part 21 fixedly arranged on the adjusting part 2, the first positioning part 41 and the second positioning part 21 can be specifically rollers, cylinders or any combination of the rollers and the cylinders, and the resistance to the movement of the adjusting belt 1 is relatively smaller when the rollers are adopted. In this embodiment, each set of the first positioning element 41 and the second positioning element 21 is provided, the accommodating section 12 sequentially bypasses the first positioning element 41 and the second positioning element 21 from outside to inside, the second fixing end 1b is connected to the fixing element 4, so that the adjusting element 2 and the fixing element 4 are connected through a pulley relationship, and when the adjusting element 2 slides up and down relative to the backrest 200, the length of the accommodating section 12 is changed, so that the length of the stretching section 11 is correspondingly changed.
Referring to fig. 8 to 10, in the present embodiment, the fixing member 4 is located at the lower end of the positioning belt 3, when the adjusting member 2 slides downward toward the fixing member 4, the distance between the two becomes smaller, the length of the accommodating section 12 is shortened, and the length of the stretching section 11 is correspondingly increased, so that the backrest 200 tilts backward under the action of its own weight, and the angle between the backrest 200 and the supporting surface of the supporting seat 102 is increased; due to the locking mechanism arranged between the adjusting piece 2 and the positioning belt 3, the adjusting piece 1 can be locked at a required position, so that the backrest 200 is fixed at a proper angle; similarly, when the adjusting member 2 slides upward away from the fixing member 4, the length of the receiving section 12 increases and the length of the stretching section 11 correspondingly decreases, so that the backrest 200 is pulled upward.
In addition, the guide members 201 are symmetrically and fixedly arranged on both sides of the backrest 200, a through hole is formed between the middle part of the guide member 201 and the backrest 200, and the two sets of adjusting belts 1 respectively pass through the through holes on the corresponding sides. In this way, the flushness of both sides of the backrest 200 can be further ensured.
It should be noted that, in the present embodiment, the two left and right adjustment bands 1 are actually provided integrally, but are fixed at the middle portion of the fixing member 4, and in other embodiments, two independent adjustment bands 1 may be used, and the second fixed ends 1b thereof are connected to the fixing member 4, which has the same effect.
In some embodiments, the fixing member 4 may not be provided, the first positioning member 41 is directly fixed to the backrest 200, and the second fixed end 1b of the adjusting belt 1 is directly connected to the backrest 200, which can achieve the same technical effects as the present invention.
Referring to fig. 11 to 12, the specific structure of the locking mechanism in the present embodiment is as follows:
the positioning belt 3 is provided with a plurality of positioning teeth 31, the positioning teeth 31 are arranged at intervals along the length extending direction of the positioning belt 3, the positioning teeth 31 are specifically arranged on one side portion of the positioning belt 3 far away from the backrest 200, each positioning tooth 31 extends along the left-right direction of the backrest 200, the lower surface of each positioning tooth 31 is an inclined surface which gradually extends outwards from bottom to top, and the upper surface of each positioning tooth 31 is a horizontal plane.
The locking mechanism further comprises a locking block 5, the locking block 5 is rotatably arranged on the adjusting piece 2 through a rotating shaft a, the locking block 5 is provided with a locking tooth 51 matched with the positioning tooth 31 and an unlocking part 52 used for unlocking, and the locking tooth 51 and the unlocking part 52 are partially arranged on two sides of the rotating shaft a. Wherein, the upper surface of each locking tooth 51 is an inclined surface matched with the lower surface of the positioning tooth 31, and the lower surface of each locking tooth 51 is a horizontal surface matched with the lower surface of the positioning tooth 31, so that the unidirectional locking of the locking mechanism can be realized: when the locking teeth 51 are engaged with the positioning teeth 31, the lower surfaces of the locking teeth 51 abut against the upper surfaces of the positioning teeth 31, and the adjusting member 2 cannot slide downward but can slide upward under the action of external force because the inclined surfaces of the lower surfaces of the positioning teeth 31 provide sliding guides for the locking teeth 51. The advantages of such a design are: the adjusting piece 2 cannot be unlocked by mistake and slide down under the action of gravity, so that potential safety hazards are avoided; when the adjusting piece 2 needs to slide upwards, the adjusting piece can be directly pulled upwards for adjustment, and the operation is simple and convenient.
It should be noted that, in some embodiments, the upper surface of each positioning tooth 31 and the lower surface of each locking tooth 51 may also be mutually matched slopes extending from bottom to top and gradually inclining outwards, so that the unidirectional locking of the locking mechanism can also be realized.
Further, the locking mechanism further comprises an elastic member 7, in particular a spring, for urging the locking tooth 51 towards the positioning tooth 31, the spring being arranged between an inner side wall of the adjusting member 2 and the locking tooth 51. The adjusting member 2 is further provided with an unlocking structure for driving the locking teeth 51 to move away from the positioning teeth 31, and the unlocking structure specifically comprises an unlocking block 6. In this embodiment, the unlocking block 6 is rotatably disposed on the adjusting member 2 through a rotating shaft b, the unlocking block 6 has a pushing portion 61 matched with the unlocking portion 52, and a knob portion 62 for a user to operate, the pushing portion 61 and the knob portion 62 are respectively disposed at two sides of the rotating shaft b, and at least a part of the knob portion 62 is located at an outer side of the adjusting member 2, and axial lines of the rotating shaft a and the rotating shaft b extend along a left-right direction of the backrest 200.
The following describes the steps of using the child product and the backrest adjusting device 300 of the child product in this embodiment:
when the locking mechanism is in a locked state, the locking teeth 51 are locked with the positioning teeth 31 in a matching mode, the pushing portion 61 is disengaged from the unlocking portion 52, the locking teeth 51 are locked with the positioning teeth 31 in a matching mode under the action force of the elastic piece 7, and the backrest 200 and the support seat 102 are locked at a certain angle relatively.
When the angle between the backrest 200 and the supporting surface of the supporting seat 102 needs to be increased, that is, the backrest 200 is rotated backwards and downwards, an operator only needs to pull the knob part 62 of the unlocking block 6 upwards with one hand to rotate the unlocking block 6 around the rotating shaft b, so that the pushing part 61 abuts against the unlocking part 52 and pushes the locking block 5 to rotate around the rotating shaft a, the locking teeth 51 overcome the acting force of the elastic piece 7 and are disengaged from the positioning teeth 31, the adjusting piece 2 can slide downwards along the positioning belt 3, the containing sections 12 of the positioning belts 1 on two sides are shortened, the stretching sections 11 are extended, the backrest 200 rotates backwards under the self gravity, when the required angle is adjusted, the knob part 62 is released, and the locking teeth 51 are again locked with the positioning teeth 31 under the acting force of the elastic piece 7.
When the angle between the backrest 200 and the supporting surface of the supporting seat 102 needs to be reduced, that is, the backrest 200 is rotated forward and upward, the unlocking and the adjustment can be performed by the same method as the above method; the feature of unidirectional locking of the locking mechanism can also be utilized, the knob part 62 is not operated, and the adjusting piece 2 is directly pulled upwards to a proper position.
Example two
Referring to fig. 13, the child product and the back adjustment device 300 thereof of the present embodiment are substantially the same as the first embodiment, and mainly differ in the connection manner of the adjustment strap 1.
In this embodiment, the accommodating section 12 sequentially bypasses the first positioning member 41 and the second positioning member 21 from outside to inside, and the second fixing end 1b is connected to the adjusting member 2, i.e., the length of the accommodating section 12 is reduced by about half compared with that of the accommodating section in the first embodiment.
In other embodiments, the second positioning member 21 may not be provided, and the receiving section 12 bypasses the first positioning member 41 and then is directly connected to the adjusting member 2 or the fixing member 4.
In other embodiments, the number of the first positioning members 41 and the second positioning members 21 may be further increased, and the number of the first positioning members 41 and the second positioning members 21 on each side should be equal to or different from each other by one, all the first positioning members 41 are disposed at intervals in the left-right direction of the backrest, all the second positioning members 21 are disposed at intervals in the left-right direction of the backrest, so that the storage sections 12 alternately and non-repeatedly pass around all the first positioning members 41 and the second positioning members 21, the second fixing ends 1b are connected to the adjusting member 2 or the fixing member 4, and the adjusting member 2 is connected to the fixing member 4 through a plurality of pulleys.
It should be noted that, the more the first positioning members 41 and the second positioning members 21 are, the more the accommodating section 12 is wound up and down, on the one hand, when the adjusting member 2 moves the same distance, the greater the length change of the stretching section 11 is, that is, the greater the change range of the angle adjustment of the backrest 200 is, the potential safety hazard is easily caused, or discomfort is caused to the seated child; on the other hand, as the number of rollers and cylinders increases, the frictional resistance between the rollers and the housing section 12 increases, and the vertical sliding operation of the adjuster 2 becomes smoother. Therefore, the number of the first positioning members 41 and the second positioning members 21 is not necessarily too large.
EXAMPLE III
Referring to fig. 14 and 15, the child product and the back adjustment device 300 thereof in this embodiment are substantially the same as the first embodiment, and mainly differ in the specific arrangement of the locking mechanism and the unlocking mechanism.
In the present embodiment, the positioning teeth 31, the locking block 5 and the elastic member 7 are substantially the same as those of the first embodiment except that the unlocking portion 52 of the locking block 5 has a slope extending upward gradually from the inside to the outside.
In this embodiment, the unlocking block 6 is slidably disposed on the adjusting member 2 in the up-down direction of the backrest 200, and the adjusting member 2 has a slide groove for providing a sliding guide for the unlocking block 6. The unlocking piece 6 has a pushing portion 61 which cooperates with the unlocking portion 52, and a knob portion 62 for user operation, wherein the pushing portion 61 likewise has a slope which extends obliquely upward from the inside to the outside, and the knob portion 62 is located at least partially outside the adjusting member 2.
When the locking mechanism is in a locked state, the locking teeth 51 are locked with the positioning teeth 31 in a matching way, the pushing part 61 is disengaged from the unlocking part 52, and the locking teeth 51 are locked with the positioning teeth 31 in a matching way under the action of the elastic piece 7.
When the locking mechanism needs to be unlocked, the knob part 62 is pressed by one hand, so that the unlocking block 6 moves towards the locking block 5, the pushing part 61 abuts against the unlocking part 52 and drives the locking block 5 to rotate, the locking teeth 51 are disengaged from the positioning teeth 31, and the adjusting piece 2 can slide up and down and adjust the angle of the backrest 200.
Example four
Referring to fig. 16 to 19, the child product and the back adjustment device 300 thereof of the present embodiment are substantially the same as the first embodiment, and mainly differ in the specific arrangement of the locking mechanism and the unlocking mechanism.
In the present embodiment, the structure of the positioning teeth 31 is basically the same as that of the first embodiment, and the locking block 5 and the unlocking block 6 are both slidably disposed on the adjusting member 2. Wherein the locking block 5 can slide in a direction perpendicular to the rear surface of the backrest 200, and the unlocking block 6 can slide in the left-right direction of the backrest 200 and is disposed at one side, specifically the left side, of the locking block 5.
The locking block 5 has a locking tooth 51 on one side facing the positioning belt 3 for cooperating with the positioning tooth 31, the locking block 5 has an unlocking portion 52 on one side (i.e. left side) facing the unlocking block 6, and the unlocking portion 52 has a slope extending gradually and obliquely outward from right to left.
The unlocking piece 6 has a pushing portion 61 which cooperates with the unlocking portion 52, and a knob portion 62 for user operation, wherein the pushing portion 61 also has a slope which extends gradually obliquely outward from right to left, and the knob portion 62 is located at least partially outside the adjusting member 2.
When the locking mechanism is in a locked state, the locking teeth 51 are locked with the positioning teeth 31 in a matching way, the pushing part 61 is disengaged from the unlocking part 52, and the locking teeth 51 are locked with the positioning teeth 31 in a matching way under the action of the elastic piece 7.
When the locking mechanism needs to be unlocked, the knob part 62 is pressed by one hand, so that the unlocking block 6 moves towards the locking block 5, the pushing part 61 abuts against the unlocking part 52 and drives the locking block 5 to move away from the positioning belt 3, the locking teeth 51 are disengaged from the positioning teeth 31, and the adjusting piece 2 can slide up and down and adjust the angle of the backrest 200.
EXAMPLE five
Referring to fig. 20 and 21, the child product and the back adjustment device 300 thereof in this embodiment are substantially the same as the third embodiment, and mainly differ in the specific arrangement of the locking mechanism and the unlocking mechanism.
In the present embodiment, the positioning teeth 31 are provided on both the left and right sides of the positioning belt 3, but only one positioning tooth 31 (the left side in the present embodiment) is actually used, and therefore, in other embodiments, the positioning teeth may be provided only on one side of the positioning belt 3.
Accordingly, the locking block 5, the unlocking block 6 and the elastic member (not shown in the figure) in the present embodiment are all disposed on the left side of the positioning belt 3. Wherein, the locking block 5 is rotatably connected to the adjusting member 2 through a rotating shaft a, the axis line of the rotating shaft a extends perpendicular to the direction of the back surface of the backrest, the locking block 5 is provided with a locking tooth 51 matched with the positioning tooth 31 and an unlocking part 52 used for unlocking, the locking tooth 51 is arranged towards the right towards the positioning tooth 31, and the unlocking part 52 is provided with a slope which gradually extends upwards in an inclined way from inside to outside.
Similarly to the embodiment, the unlocking piece 6 is provided on the adjusting member 2 slidably in the up-down direction of the backrest 200, wherein the pushing portion 61 is also a slope extending gradually obliquely upward from the inside to the outside.
When the locking mechanism is in a locked state, the locking teeth 51 are locked with the positioning teeth 31 in a matching way, the pushing part 61 is disengaged from the unlocking part 52, and the locking teeth 51 are locked with the positioning teeth 31 in a matching way under the action of the elastic piece.
When the locking mechanism needs to be unlocked, the knob part 62 is pressed by one hand, so that the unlocking block 6 moves towards the locking block 5, the pushing part 61 abuts against the unlocking part 52 and drives the locking block 5 to rotate, the locking teeth 51 are disengaged from the positioning teeth 31, and the adjusting piece 2 can slide up and down to adjust the angle of the backrest 200.
EXAMPLE six
Referring to fig. 22 to 25, the children's article and the back adjusting device 300 thereof of the present embodiment are substantially the same as the first embodiment, and mainly differ in the specific choice of the children's article.
In this embodiment, the children's product is selected from a seat pocket, wherein the first fixed end 1a of the adjusting belt 1 of the backrest adjusting device 300 is connected to the side arm rest in the side bracket 101 of the seat pocket.
The seat pocket of this embodiment can be used alone, also can graft and use on other devices, as shown in fig. 25 for its installation in the use of children's shallow frame.
EXAMPLE seven
Referring to fig. 26 to 28, the children's article and the back adjusting device 300 thereof of the present embodiment are substantially the same as the first embodiment, and mainly differ in the specific choice of the children's article.
In this embodiment, the children article is a sleeping basket, and is suitable for infants with a smaller age, wherein the first fixed end 1a of the adjusting belt 1 of the backrest adjusting device 300 is connected to the outer frame in the side bracket 101 of the sleeping basket.
The sleeping basket of the embodiment can be used alone, and can also be grafted on other devices for use, as shown in fig. 28, the sleeping basket is installed on a frame of a children's cart for use.
In summary, the locking mechanism and the unlocking mechanism of the child product and the backrest adjusting device thereof of the present invention can be different structures, and the child product itself has various forms, and is not limited to the above embodiments.
The children product and the backrest adjusting device thereof mainly have the following advantages:
1. an operator can control the adjusting piece 2 and the handle knob part 62 of the unlocking block 6 by one hand, the adjusting piece 2 is controlled to slide up and down, the bidirectional rotation and the angle adjustment of the backrest 200 are realized, and the other hand can hold a frame of the trolley and the like, so the operation is simple and convenient.
2. The section 12 of accomodating of regulation band 1 is located between regulating part 2 and mounting 4 completely, does not expose the unnecessary part outside back 200, and during the actual application, the outside parcel of back 200 has the cloth cover, and regulation band 1 is wrapped up in the cloth cover completely, can't see from the outside to children's articles for use aesthetic property and practicality have been guaranteed.
3. Two sets of regulation band 1 about, adjusting part and guide 201 symmetry set up and synchronous motion for the left and right sides of back 200 is the parallel and level all the time at the rotation in-process, has guaranteed children's articles for use's comfort level and security.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a children's articles for use's back adjusting device, children's articles for use include support and back, the back is connected with rotating on the support, its characterized in that: the backrest adjusting device comprises an adjusting part arranged on the backrest and two groups of adjusting belts respectively arranged on the left side and the right side of the adjusting part, and an adjusting assembly used for retracting and releasing the adjusting belts is arranged between each group of adjusting belts and the adjusting part, wherein each adjusting belt is provided with a first fixed end and a second fixed end which are respectively arranged at two ends of the adjusting belt, which are different in length direction, the first fixed end is fixed on the bracket, and the second fixed end is fixed on the backrest or the adjusting part; the adjusting assembly at least comprises a first positioning piece which is relatively and fixedly arranged on the backrest, and the adjusting belt is wound on the first positioning piece; the adjusting band has the tensile section that meets along self length direction and accomodates the section, tensile section sets up first stiff end with between the adjusting part, it sets up to accomodate the section adjusting part with between the second stiff end, the adjusting part can be followed the up-and-down direction relative motion ground of back is located on the back, the adjusting part is relative the back slides from top to bottom and makes the length of accomodating the section changes.
2. The backrest adjustment device for children's products according to claim 1, wherein: the adjusting component further comprises a second positioning piece, the second positioning piece is fixedly arranged on the adjusting piece, and the accommodating section bypasses the first positioning piece and the second positioning piece alternately.
3. A backrest adjustment device for children's products, according to claim 2, characterized in that: all the first positioning pieces and the second positioning pieces are rollers, or are cylinders, or are any combination of rollers and cylinders.
4. The backrest adjustment device for children's products according to claim 1, wherein: the backrest adjusting device further comprises a positioning belt, the positioning belt extends along the upper direction and the lower direction of the backrest, the adjusting piece can be arranged on the positioning belt in a sliding mode along the length extending direction of the positioning belt, and the backrest adjusting device further comprises a locking mechanism used for locking the adjusting piece and the positioning belt relatively.
5. The backrest adjustment device for children's products according to claim 4, wherein: the backrest adjusting device further comprises a fixing piece, the fixing piece is fixedly arranged at one end of the positioning belt, and the first positioning piece is fixedly arranged on the fixing piece.
6. The backrest adjustment device for children's products according to claim 4, wherein: the locking mechanism comprises a plurality of positioning teeth arranged on the positioning belt, the positioning teeth are arranged at intervals along the length extension direction of the positioning belt, the locking mechanism further comprises a locking block, the locking block is movably arranged on the adjusting piece, the locking block is provided with locking teeth matched with the positioning teeth, the adjusting piece is further provided with an unlocking structure used for driving the locking teeth to move away from the positioning teeth, and when the locking mechanism is in a locking state, the locking teeth are matched and locked with the positioning teeth; when the locking mechanism is in an unlocked state, the locking teeth are disengaged from the positioning teeth.
7. The backrest adjustment device for children's products according to claim 6, wherein: the lower surface of each positioning tooth is an inclined surface which gradually extends outwards in an inclined manner from bottom to top, and the upper surface of each locking tooth is an inclined surface matched with the lower surface of each positioning tooth; the upper surface of each positioning tooth is a horizontal plane, and the lower surface of each locking tooth is a horizontal plane matched with the lower surface of each positioning tooth.
8. The backrest adjustment device for children's products according to claim 6, wherein: the locking mechanism further comprises an elastic piece used for driving the locking teeth to move towards the positioning teeth, the locking block is provided with an unlocking part, the unlocking structure comprises an unlocking block, the unlocking block is movably arranged on the adjusting piece, the unlocking block is provided with a pushing part matched with the unlocking part,
when the locking mechanism is in a locking state, the pushing part is disengaged from the unlocking part, and the locking teeth are matched and locked with the positioning teeth under the action force of the elastic piece;
when the locking mechanism is in an unlocking state, the pushing part abuts against the unlocking part, and the locking teeth overcome the acting force of the elastic part and are disengaged from the positioning teeth.
9. The utility model provides a children article, children article include support and back, the support is including dividing two sets of collateral branch framves of locating the left and right sides to and be used for bearing children's supporting seat, the supporting seat sets up two sets of between the collateral branch frame, the back is connected with rotating the rear portion of supporting seat, its characterized in that: the children's article further comprises a backrest adjusting device as claimed in any one of claims 1 to 8, wherein the adjusting belts are arranged between the left and right sides of the adjusting component and the side brackets.
10. The children's article of claim 9, wherein: the children article is a stroller, a sleeping basket or a seat bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196696.XA CN112918541B (en) | 2021-02-22 | 2021-02-22 | Children's article and backrest adjusting device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196696.XA CN112918541B (en) | 2021-02-22 | 2021-02-22 | Children's article and backrest adjusting device thereof |
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| CN112918541A true CN112918541A (en) | 2021-06-08 |
| CN112918541B CN112918541B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110196696.XA Active CN112918541B (en) | 2021-02-22 | 2021-02-22 | Children's article and backrest adjusting device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248825A (en) * | 2021-12-28 | 2022-03-29 | 东莞金旺儿童用品有限公司 | Backrest adjusting component, seat structure and cart |
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| Publication number | Publication date |
|---|---|
| CN112918541B (en) | 2022-09-27 |
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