CN219789968U - Chair back angle adjusting mechanism and child safety seat - Google Patents
Chair back angle adjusting mechanism and child safety seat Download PDFInfo
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- CN219789968U CN219789968U CN202320823105.1U CN202320823105U CN219789968U CN 219789968 U CN219789968 U CN 219789968U CN 202320823105 U CN202320823105 U CN 202320823105U CN 219789968 U CN219789968 U CN 219789968U
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- safety seat
- chair back
- adjusting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a chair back angle adjusting mechanism and a child safety seat, wherein the chair back angle adjusting mechanism is used for the child safety seat and comprises a fixed part, a movable part, an operating part, a reversing transmission mechanism and an adjusting part, wherein the fixed part is suitable for being fixed on an automobile seat, the movable part is arranged on the fixed part in a front-back sliding manner, and the chair back of the child safety seat is hinged with the movable part; the operating piece is arranged on the left side and/or the right side of the child safety seat base, the operating piece is rotatably arranged on one of the movable part and the fixed part, the adjusting piece is rotatably arranged on the other one of the movable part and the fixed part, and the operating piece is connected with the adjusting piece through a reversing transmission mechanism so as to convert the rotation of the operating piece into the rotation of the adjusting piece, and when the operating piece is operated to rotate, the adjusting piece drives the movable part to slide back and forth relative to the fixed part. Child safety seats employ the above-described angle adjustment mechanism. The child safety seat can adjust the angle of the seat back on the side of the child safety seat, and has the advantages of stepless adjustment and convenient and labor-saving operation.
Description
Technical Field
The utility model relates to the technical field of child safety seats, in particular to a chair back angle adjusting mechanism and a child safety seat.
Background
Currently, riding comfort of a child safety seat is increasingly paid attention to by parents, and in order to improve riding comfort of a child, the child safety seat is generally provided with a chair back angle adjusting function.
But the existing chair back angle adjusting mechanism is generally inaccurate in adjustment, can only be adjusted in a rough way, cannot be adjusted in an electrodeless way, is complex in structure and high in manufacturing cost, and meanwhile, the existing chair back angle adjusting mechanism is generally provided with an adjusting knob or an adjusting handle at the middle part in front of a chair, and needs to be turned aside and a probe to be operated in front of a child safety chair during adjustment of parents, so that great inconvenience exists.
Disclosure of Invention
The utility model aims to provide the chair back angle adjusting mechanism for realizing stepless angle adjustment of the chair back of the child safety chair, and the chair back angle adjusting mechanism is simple in structure, convenient and labor-saving to operate and good in user experience.
It is another object of the present utility model to provide a child safety seat employing the above-described back angle adjustment mechanism.
In order to achieve one of the above purposes, the utility model adopts the following technical scheme: the chair back angle adjusting mechanism is used for the child safety seat and comprises a fixed part, a movable part, an operating part, a reversing transmission mechanism and an adjusting part,
the fixing part is suitable for being fixed on an automobile seat;
the movable part is arranged on the fixed part in a sliding way back and forth, and the chair back of the child safety seat is hinged with the movable part;
the operation piece is arranged on the left side and/or the right side of the child safety seat base, the operation piece is rotatably arranged on one of the movable part and the fixed part, the adjusting piece is rotatably arranged on the other one of the movable part and the fixed part, the operation piece is connected with the adjusting piece through the reversing transmission mechanism so as to convert the rotation of the operation piece into the rotation of the adjusting piece, and when the operation piece is operated to rotate, the adjusting piece drives the movable part to slide back and forth relative to the fixed part.
The working principle of the utility model is as follows: the operation piece is rotated through rotating the operation piece, kinetic energy is transmitted to the adjusting piece through the reversing transmission mechanism, the reversing transmission mechanism converts the rotation of the operation piece around the first rotating shaft into the rotation of the adjusting piece around the second rotating shaft intersected with the first rotating shaft, then the adjusting piece drives the movable part to slide back and forth relative to the fixed part, finally the chair back of the child safety seat is driven by the movable part, the chair back of the child safety seat swings relative to the movable part, and the inclination angle of the chair back of the child safety seat changes.
Preferably, the reversing gear comprises a first bevel gear and a second bevel gear, the first bevel gear is coaxially arranged with the operating member, the second bevel gear is coaxially arranged with the adjusting member, and the first bevel gear and the second bevel gear are meshed with each other.
Preferably, the operating member is provided on the movable portion, and the fixed portion is provided with a connecting member adapted to be engaged with the adjusting member.
Preferably, the connecting member is a worm wheel.
Preferably, the adjusting member includes a worm, one end of which is connected to the reversing transmission mechanism, and the other end of which is connected to the connecting member.
Preferably, the adjusting member further comprises a connecting rod, the worm is sleeved outside the connecting rod, and the end part of the worm is connected with the reversing transmission mechanism through the connecting rod.
Preferably, the operating member is a knob.
Preferably, the number of the rotary knobs is two, the two rotary knobs are respectively arranged on the left side and the right side of the child safety seat base, the two rotary knobs are connected through a rotary rod, and the middle part of the rotary rod is connected with the reversing transmission mechanism.
In order to achieve another purpose of the utility model, the utility model adopts another technical scheme that: the child safety seat is provided with the chair back angle adjusting mechanism.
Preferably, the child safety seat includes a base including an upper cover and a lower cover, the upper cover being disposed above the lower cover, the upper cover including the movable portion, and the lower cover including the fixed portion.
Compared with the prior art, the utility model has the beneficial effects that: (1) The sliding distance between the movable part and the fixed part is controlled through the rotation of the operating part and the adjusting part, so that the stepless adjustment of the sliding distance can be realized, the stepless adjustment of the angle of the chair back is realized, the adjustment is more accurate, the inclination angle of the chair back is gradually changed along with the operation of the operating part, the adjustment process is stable and smooth, and the user experience is good; (2) The operation piece is arranged on the left side and/or the right side of the base, so that parents can conveniently adjust the operation piece from two sides, and compared with middle adjustment, the operation piece is more convenient to operate and saves more labor; (3) The motion transmission is carried out between the operating piece and the adjusting piece through a reversing transmission mechanism, and the whole chair back angle adjusting mechanism has simple structure and low processing and using cost.
Drawings
FIG. 1 is a schematic view of a child safety seat and a car seat;
FIG. 2 is a schematic perspective view of the chair back angle adjustment mechanism of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the chair back angle adjustment mechanism of FIG. 1;
FIG. 4 is a schematic view of the child safety seat with the back tilt angle changed;
FIG. 5 is a schematic cross-sectional view of the chair back angle adjustment mechanism of FIG. 4;
FIG. 6 is a schematic view of a partial structure of the chair back angle adjusting mechanism, not showing the movable portion and the fixed portion;
FIG. 7 is a schematic view of an assembled structure of the adjustment member and the connection member;
FIG. 8 is a schematic view of an assembled structure of a knob and a rotary rod;
FIG. 9 is a schematic view of the structure of the upper and lower covers;
in the figure: 1. an automobile seat; 2. a child safety seat; 20. a base of the child safety seat; 30. a seat back of the child safety seat; 21. a movable part; 22. a fixing part; 23. an operating member; 231. a rotating rod; 2311. a plug; 23a, a plug-in part; 24. a reversing transmission mechanism; 241. a first bevel gear; 242. a second bevel gear; 25. an adjusting member; 251. a worm; 252. a connecting rod; 26. a connecting piece; x, a first rotating shaft; y, a second rotating shaft; 2a, an upper cover; 2a2, a mounting cavity; 2a1, a baffle; 2b, a lower cover; 2b1, avoiding gaps.
Detailed Description
The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides a chair back angle adjusting mechanism for a child safety seat, which is shown in figures 1 to 9, and comprises a fixed part 22, a movable part 21, an operating piece 23, a reversing transmission mechanism 24 and an adjusting piece 25,
the fixing portion 22 is adapted to be fixed to the car seat 1;
the movable part 21 is slidably disposed on the fixed part 22 back and forth, and the back 30 of the child safety seat 2 is hinged with the movable part 21 so that the back 30 of the child safety seat 2 can swing freely relative to the movable part 21;
the operating element 23 is disposed on the left side and/or the right side of the base 20 of the child safety seat 2, the operating element 23 is rotatably disposed on one of the movable portion 21 and the fixed portion 22, the adjusting element 25 is rotatably disposed on the other of the movable portion 21 and the fixed portion 22, and the operating element 23 is connected to the adjusting element 25 through the reversing transmission mechanism 24 so as to convert the rotation of the operating element 23 into the rotation of the adjusting element 25, and when the operating element 23 is operated to rotate, the adjusting element 25 drives the movable portion 21 to slide back and forth relative to the fixed portion 22.
The working principle of the utility model is as follows: the operating member 23 is rotated by rotating the operating member 23, kinetic energy is transmitted to the adjusting member 25 through the reversing transmission mechanism 24, the reversing transmission mechanism 24 converts the rotation of the operating member 23 around the first rotating shaft x into the rotation of the adjusting member 25 around the second rotating shaft y intersecting the first rotating shaft x, then the adjusting member 25 drives the movable portion 21 to slide back and forth relative to the fixed portion 22, finally the chair back 30 of the child safety seat 2 is driven by the movable portion 21, the chair back 30 of the child safety seat 2 swings relative to the movable portion 21, and the inclination angle of the chair back 30 of the child safety seat 2 changes. As shown in fig. 1 to 5, in fig. 1 to 3, the inclination angle of the seatback 30 of the child safety seat 2 with respect to the horizontal plane is at the maximum, based on this state, the rotation operation member 23 moves the adjustment member 25 forward with respect to the movable portion 21, at this time, the position of the fixed portion 22 with respect to the car seat 1 is unchanged, the adjustment member 25 drives the movable portion 21 to slide forward with respect to the fixed portion 22, the state shown in fig. 4 and 5 is formed, the lower end of the seatback 30 of the child safety seat 2 moves forward with the movable portion 21, the seatback 30 of the child safety seat 2 swings backward until the upper end of the seatback 30 abuts against the car seat 1, the inclination angle between the seatback 30 of the child safety seat 2 and the horizontal plane becomes small, and it is easy to understand that the inclination angle between the seatback 30 of the child safety seat 2 and the horizontal plane can be enlarged by rotating the operation member 23 reversely.
Compared with the prior art, the utility model (1) controls the sliding distance between the movable part 21 and the fixed part 22 through the rotation of the operating piece 23 and the adjusting piece 25, can realize the stepless adjustment of the sliding distance, further realize the stepless adjustment of the angle of the chair back 30, has more accurate adjustment, and the inclination angle of the chair back 30 is gradually changed along with the operation of the operating piece 23, the adjustment process is stable and smooth, and the user experience is good; (2) The operating member 23 is arranged at the left side and/or the right side of the base 20, so that parents can conveniently adjust the operating member from two sides, and compared with middle adjustment, the operation is more convenient and labor-saving; (3) The motion transmission is carried out between the operating piece 23 and the adjusting piece 25 through a reversing transmission mechanism 24, and the whole chair back angle adjusting mechanism has simple structure and low processing and using cost.
In some embodiments, the reversing gear 24 includes a first bevel gear 241 and a second bevel gear 242, the first bevel gear 241 is disposed coaxially with the operating member 23, the second bevel gear 242 is disposed coaxially with the adjustment member 25, and the first and second bevel gears 241, 242 intermesh. The operating member 23 drives the first bevel gear 241 to rotate, the first bevel gear 241 drives the second bevel gear 242 to rotate, and then the second bevel gear 242 drives the adjusting member 25 to rotate, so that the reversing transmission mechanism 24 is simple in structure and low in use and maintenance cost.
In the present embodiment, a connecting member 26 is provided to be engaged with the regulating member 25, the operating member 23 is provided to the movable portion 21, and the fixed portion 22 is provided with the connecting member 26 adapted to be engaged with the regulating member 25.
Specifically, the connecting piece 26 is fixedly connected or detachably connected with the fixing portion 22, and specific connection modes include, but are not limited to, integral injection molding, welding, bolt fixing, riveting and buckling connection, so long as the connecting piece 26 is realized and cannot be driven to rotate by the adjusting piece 25, and the purpose is to force the adjusting piece 25 to rotate and move forwards and backwards relative to the connecting piece 26. It is easy to understand that the fixing portion 22 has a movable space for the regulator 25 to shuttle back and forth in the front-rear direction of the connector 26.
In other embodiments, the operating member 23 is disposed at the fixed portion 22 and the connecting member 26 is disposed at the movable portion 21.
In some embodiments, as shown in fig. 6 and 7, the connector 26 is a worm gear. It is easy to understand that, in order to achieve the forward and backward sliding of the regulator 25 with respect to the connector 26, the connector 26 is provided with a through hole through which the regulator 25 shuttles forward and backward, and the through hole has an internal thread that is engaged with an external thread of the outer circumference of the regulator 25.
In some embodiments, the adjustment member 25 includes a worm 251, one end of the worm 251 being connected to the reversing gear 24 and the other end being connected to the connection member 26. The combination of the worm wheel and the worm 251 is a common transmission mechanism, and has the advantages of simple structure, convenient assembly and low use and maintenance cost.
Further, the adjusting member 25 further includes a connecting rod 252, the worm 251 is sleeved outside the connecting rod 252, and an end of the worm 251 is connected with the reversing gear 24, i.e. the second bevel gear 242, through the connecting rod 252.
In this embodiment, a through hole is formed in the worm 251, the cross-sectional shape of the connecting rod 252 along the radial direction is matched with the shape of the through hole to realize rotation stopping between the connecting rod 252 and the worm 251, meanwhile, a mounting hole matched with the cross-sectional shape of the connecting rod 252 is formed in the second bevel gear 242, and the end part of the connecting rod 252 is inserted into the mounting hole to realize rotation stopping between the connecting rod 252 and the second bevel gear 242. The structure of the adjusting member 25 and the connecting structure between the adjusting member 25 and the second bevel gear 242 are simple, easy to assemble and low in use cost.
In some embodiments, the operating member 23 is a knob. Simple structure, low use cost and easy operation.
In this embodiment, as shown in fig. 5 and 6, two knobs are provided, and the two knobs are respectively disposed on the left and right sides of the base 20 of the child safety seat 2, so that the angle of the seat back 30 of the child safety seat 2 can be adjusted from two sides, and no matter the child safety seat 2 is mounted on the left seat, the right seat or the middle seat of the automobile, parents sitting in the same row can conveniently and rapidly adjust the angle of the seat back 30 of the child safety seat in a stepless manner.
Specifically, the two knobs are connected by a rotating rod 231, and the middle part of the rotating rod 231 is connected with the reversing transmission mechanism 24, namely the first bevel gear 241.
More specifically, as shown in fig. 8, the knob is provided with an inserting portion 23a, two ends of the rotating rod 231 are provided with plugs 2311, and the plugs 23a are respectively inserted into the inserting portions 23a at two sides, so that the connection mode is simple and reliable, the disassembly and the assembly are easy, the synchronous rotation of the knob and the rotating rod 231 is realized through the shape fit between the plugs 2311 and the inserting portions 23a, the middle part of the rotating rod 231 is connected with the reversing transmission mechanism 24, and further the first bevel gear 241 and the knob synchronously rotate.
The present utility model also provides a child safety seat 2 employing the above-described back angle adjustment mechanism. The angle stepless adjustment of the chair back 30 of the child safety seat 2 can be realized, and the child safety seat has the advantages of simple structure, convenient and labor-saving operation and good user experience.
Specifically, the child safety seat 2 includes a base 20, the base 20 including an upper cover 2a and a lower cover 2b, the upper cover 2a being disposed above the lower cover 2b, the upper cover 2a including a movable portion 21, the lower cover 2b including a fixed portion 22.
It will be appreciated that in other embodiments, the movable portion 21 may be a part of the base 20, for example, the upper cover 2a of the base 20, or may be a member movably disposed on the base 20. Similarly, the fixing portion 22 may be the base 20, or may be a part of the base 20, for example, the lower cover 2b of the base 20, or may be a member movably disposed on the base 20.
As an improvement, as shown in fig. 4, 5 and 9, the operation member 23 is disposed at the front end of the upper cover 2a, and is easier to touch than the rear end of the upper cover 2a, so as to conform to the usage habit, the front end of the upper cover 2a is provided with a mounting cavity 2a2 suitable for mounting the chair back angle adjusting mechanism, the lower cover 2b is provided with a corresponding avoidance notch 2b1, the front and left and right sides of the mounting cavity 2a2 are surrounded by a baffle 2a1, when the upper cover 2a slides back and forth relative to the lower cover 2b, the front ends of the mounting cavity 2a2 and the lower cover 2b are shielded and protected by the baffle 2a1, buttocks and legs of a child are outside the baffle 2a1, and riding comfort of the child is not affected by the chair back angle adjusting mechanism.
The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The back of the chair angle adjustment mechanism for children's safety seat, its characterized in that: comprises a fixed part, a movable part, an operating part, a reversing transmission mechanism and an adjusting part,
the fixing part is suitable for being fixed on an automobile seat;
the movable part is arranged on the fixed part in a sliding way back and forth, and the chair back of the child safety seat is hinged with the movable part;
the operation piece is arranged on the left side and/or the right side of the child safety seat base, the operation piece is rotatably arranged on one of the movable part and the fixed part, the adjusting piece is rotatably arranged on the other one of the movable part and the fixed part, the operation piece is connected with the adjusting piece through the reversing transmission mechanism so as to convert the rotation of the operation piece into the rotation of the adjusting piece, and when the operation piece is operated to rotate, the adjusting piece drives the movable part to slide back and forth relative to the fixed part.
2. The chair back angle adjustment mechanism of claim 1, wherein: the reversing transmission mechanism comprises a first bevel gear and a second bevel gear, the first bevel gear and the operating piece are coaxially arranged, the second bevel gear and the adjusting piece are coaxially arranged, and the first bevel gear and the second bevel gear are mutually meshed.
3. The chair back angle adjustment mechanism of claim 1, wherein: the operating piece is arranged on the movable part, and the fixed part is provided with a connecting piece which is suitable for being matched with the adjusting piece.
4. A chair back angle adjustment mechanism as in claim 3, wherein: the connecting piece is a worm wheel.
5. The chair back angle adjustment mechanism of claim 4, wherein: the adjusting piece comprises a worm, one end of the worm is connected with the reversing transmission mechanism, and the other end of the worm is connected with the connecting piece.
6. The chair back angle adjustment mechanism of claim 5, wherein: the adjusting piece further comprises a connecting rod, the worm is sleeved outside the connecting rod, and the end part of the worm is connected with the reversing transmission mechanism through the connecting rod.
7. The chair back angle adjustment mechanism of claim 1, wherein: the operating piece is a knob.
8. The chair back angle adjustment mechanism of claim 7, wherein: the two knobs are arranged on the left side and the right side of the child safety seat base respectively, the two knobs are connected through a rotary rod, and the middle part of the rotary rod is connected with the reversing transmission mechanism.
9. Child safety seat, its characterized in that: use of a chair back angle adjustment mechanism as claimed in any one of claims 1 to 8.
10. The child safety seat according to claim 9, wherein: the base comprises an upper cover and a lower cover, wherein the upper cover is arranged above the lower cover, the upper cover comprises a movable part, and the lower cover comprises a fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320823105.1U CN219789968U (en) | 2023-04-13 | 2023-04-13 | Chair back angle adjusting mechanism and child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320823105.1U CN219789968U (en) | 2023-04-13 | 2023-04-13 | Chair back angle adjusting mechanism and child safety seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219789968U true CN219789968U (en) | 2023-10-03 |
Family
ID=88174865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320823105.1U Active CN219789968U (en) | 2023-04-13 | 2023-04-13 | Chair back angle adjusting mechanism and child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219789968U (en) |
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2023
- 2023-04-13 CN CN202320823105.1U patent/CN219789968U/en active Active
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