CN108839591B - Child car safety seat leveling device and child car safety seat - Google Patents
Child car safety seat leveling device and child car safety seat Download PDFInfo
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- CN108839591B CN108839591B CN201810592262.XA CN201810592262A CN108839591B CN 108839591 B CN108839591 B CN 108839591B CN 201810592262 A CN201810592262 A CN 201810592262A CN 108839591 B CN108839591 B CN 108839591B
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- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 230000009471 action Effects 0.000 claims abstract description 15
- 238000013459 approach Methods 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 15
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 230000036544 posture Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2821—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The application relates to a leveling device for a child car safety seat. The leveling device for the child car safety seat comprises a first bracket, a second bracket, a sliding piece, a connecting piece, an adjusting mechanism, a locking mechanism, a plumb piece and an unlocking piece. When the leveling device of the child car safety seat is in a first state, the leveling plane is parallel or coincident with the horizontal plane, the plumb is in a vertical state, the unlocking piece is separated from the locking mechanism, and the locking mechanism locks the adjusting mechanism; when the child car safety seat leveling device is in a second state, the leveling plane is intersected with the horizontal plane, the plumb bob approaches to the vertical state from the inclined state until the plumb bob is in the vertical state under the action of self gravity, the unlocking piece drives the locking mechanism to unlock under the drive of the plumb bob, and the adjusting mechanism can freely act to drive the sliding piece to slide relative to the first bracket. The leveling device is novel in structure, simple in adjustment operation, capable of achieving semi-automation and high in leveling accuracy.
Description
Technical Field
The application belongs to the field of children products, and particularly relates to a child car safety seat and a component thereof.
Background
Child car seats are now used by a large number of households with children as a means of protecting the child's ride. The existing child car safety seat is installed on a seat in a car when in use, and the height and the angle of the seat in various cars are different, so that the child car safety seat installed in the car can be kept in a horizontal state, children can sit conveniently, and the height and the angle of the child car safety seat are required to be adjusted. At present, a mechanism for adjusting the angle of the child car safety seat is heavy, has poor adjusting effect, and is complicated in adjusting operation.
Disclosure of Invention
The application aims to solve the technical problem of providing the child car safety seat leveling device which is novel in structure, simple in adjustment operation and high in leveling accuracy.
In order to solve the technical problems, the application adopts a technical scheme that:
a leveling device for a child car safety seat is used for adjusting the posture of the child car safety seat. It comprises the following steps:
the first bracket is fixedly arranged on the child car safety seat and is provided with a leveling plane for representing whether the child car safety seat is horizontal or not;
the second bracket is pivotally connected with the first bracket;
the leveling component is arranged between the first bracket and the second bracket and is respectively connected with the first bracket and the second bracket, and is used for driving the first bracket and the second bracket to rotate relatively and is provided with a locking state and an unlocking state capable of freely moving;
the first bracket and the second bracket are respectively propped against the installation plane and jointly support the child car safety seat so that the child car safety seat stands on the installation plane;
when the leveling plane intersects with the horizontal plane, the child car safety seat is in an inclined state, the leveling assembly is triggered to enter an unlocking state, and the leveling assembly acts to drive the first bracket and the second bracket to relatively rotate so as to change the angle between the leveling plane and the horizontal plane;
when the leveling plane is parallel or coincident with the horizontal plane, the child car safety seat is in a horizontal state, the leveling assembly is triggered to enter a locking state, and the first bracket and the second bracket are mutually locked.
Further, the leveling assembly includes:
the sliding piece is in sliding connection with the first bracket;
the connecting piece is respectively and pivotally connected with the sliding piece and the second bracket;
the adjusting mechanism is used for driving the sliding piece to slide relative to the first bracket;
the locking mechanism is used for locking the adjusting mechanism to enable the leveling assembly to be in a locking state;
the upper part of the plumb piece is in pivot connection with the first bracket, and the lower part of the plumb piece is provided with a balancing weight;
the unlocking piece is connected with the plumb piece and is used for driving the locking mechanism to unlock so that the leveling assembly is in an unlocking state;
when the leveling plane is intersected with the horizontal plane, the plumb bob approaches to the vertical state from the inclined state under the action of self gravity, the unlocking piece drives the locking mechanism to unlock under the drive of the plumb bob, and the adjusting mechanism acts to drive the first bracket and the second bracket to rotate relatively through the sliding piece and the connecting piece;
when the leveling plane is parallel or coincident with the horizontal plane, the plumb is in a vertical state, the unlocking piece is separated from the locking mechanism, and the locking mechanism locks the adjusting mechanism.
Specifically, a chute is arranged on the first bracket, the sliding piece is slidably arranged in the chute, and the sliding piece can slide up and down in the chute.
Further, a guide bar is arranged on one part of the sliding groove and the sliding piece, a guide groove is formed in the other part of the sliding groove and the sliding piece, the guide bar is inserted into the guide groove, and the sliding piece slides up and down under the guide of the guide bar and the guide groove.
Specifically, the adjusting mechanism comprises a screw rod and a threaded hole formed in the sliding piece, and the screw rod is in threaded connection with the threaded hole.
Further, the adjusting mechanism further comprises a knob fixedly arranged on the screw rod.
Specifically, the locking mechanism includes:
the ratchet wheel is fixedly arranged on the adjusting mechanism;
the left pawl is arranged on the left side of the ratchet wheel and is in pivot connection with the first bracket;
the right pawl is arranged on the right side of the ratchet wheel and is in pivot connection with the first bracket;
the left spring is connected with the left pawl and is used for providing elastic force to enable the left pawl to be clamped on the ratchet wheel;
the right spring is connected with the right pawl and used for providing elastic force to enable the right pawl to be clamped on the ratchet wheel.
Further, the locking mechanism has a locked state and an unlocked state. When the locking mechanism is in a locking state, the left pawl and the right pawl are blocked in the tooth grooves of the ratchet wheel in a left-right manner to lock the ratchet wheel; when the locking mechanism is in an unlocked state, one of the left pawl and the right pawl rotates away from the ratchet.
Specifically, the unlocking piece is slidably installed on the first bracket, the left and right swinging of the plumb piece can drive the unlocking piece to slide left and right on the first bracket, and the left and right sliding of the unlocking piece can drive the left pawl/right pawl to rotate and separate from the ratchet wheel.
Specifically, the second support is pivotally connected with the first support through a first shaft, the upper portion of the connecting piece is pivotally connected with the sliding piece through a second shaft, the lower portion of the connecting piece is pivotally connected with the second support through a third shaft, the upper portion of the plumb bob piece is pivotally connected with the first support through a fourth shaft, and the axes of the first shaft, the second shaft, the third shaft and the fourth shaft are parallel to each other.
The child car safety seat comprises a seat body, a base and the child car safety seat leveling device, wherein the child car safety seat leveling device is arranged on the base, and the child car safety seat adjusts the posture of the child car safety seat through the child car safety seat leveling device.
The terms front, back, left, right, up, down, etc. in the context referred to herein are defined in terms of the orientation of the child car seat leveling device during normal use.
The scope of the present application is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents. Such as those described above, and those disclosed in the present application (but not limited to) having similar functions, are replaced with each other.
Due to the application of the technical scheme, compared with the prior art, the application has the following advantages: the leveling assembly drives the first bracket and the second bracket to rotate relatively so as to adjust the posture of the child car safety seat, and the leveling operation is simple and easy to implement. The leveling assembly can automatically lock and unlock according to the posture of the child car safety seat, so that the automatic judgment of whether the child car safety seat is leveled or not is realized, and the leveling is accurate and the consistency is good.
Drawings
FIG. 1 is a schematic illustration of a child car seat of the present application in an unleveled condition;
FIG. 2 is a schematic illustration of the child car seat of the present application in a leveled condition;
FIG. 3 is a schematic perspective view of a leveling device for a child car seat according to the present application;
FIG. 4 is a schematic view of another perspective structure of the child car seat leveling device of the present application;
FIG. 5 is a schematic view of the internal structure of a child car seat leveling device (with a first bracket hidden) from a first view;
FIG. 6 is a schematic view of the internal structure of a child car seat leveling device (hidden portion first bracket, locking mechanism) from a second perspective;
FIG. 7 is a schematic view of the internal structure of a third perspective of a child car seat leveling device (with portions of the first bracket, portions of the locking mechanism hidden);
FIG. 8 is a schematic view of the internal structure of a fourth view of a child car seat leveling device (hidden portions first bracket, second bracket);
FIG. 9 is a schematic view of the structure of the inner chute portion of the first bracket;
FIG. 10 is a schematic view of a slider structure;
FIG. 11 is a schematic view of the structure of the unlocking member;
FIG. 12 is a schematic diagram showing the connection relationship between the second bracket and the connecting member;
FIG. 13 is a schematic view showing the internal structure of the child car seat leveling device in a first state;
FIG. 14 is a schematic view showing the internal structure of the child car seat leveling device in a second state when the device is installed on a plane with a high left and a low right;
FIG. 15 is a schematic view showing the internal structure of the child car seat leveling device in a second state when the device is installed on a plane with a lower left and a higher right;
wherein: 1. a first bracket; 2. a second bracket; 3. a slider; 4. a connecting piece; 5. an adjusting mechanism; 6. a locking mechanism; 7. a plumb bob; 8. an unlocking member; 11. leveling the plane; 12. a chute; 13. a guide bar; 14. a jacket; 15. an inner sleeve; 16. an inner cover; 31. a guide groove; 32. a threaded hole; 51. A screw rod; 52. a knob; 61. a ratchet wheel; 62. a left pawl; 63. a right pawl; 64. a left spring; 65. a right spring; 71. balancing weight; 81. a clamping groove; 82. a left relief hole; 83. a right relief hole; 84. a left hook; 85. a right hook; 101. a first shaft; 102. a second shaft; 103. a third shaft; 104. a fourth shaft; 105. a fifth shaft; 106. a sixth shaft; 200. an automobile seat; 201. a safety seat body; 202. a base; 203. leveling device.
Detailed Description
As shown in fig. 1 and 2, the child car safety seat according to the present application includes a safety seat body 201, a base 202, and a child car safety seat leveling device 203. The leveling device 203 is mounted at the bottom of the base 202. The child car seat adjusts its own posture by means of the leveling device 203.
As shown in fig. 1, the leveling device 203 is shown hidden inside the bottom of the base 202 when the child car seat is mounted on the car seat 200 without leveling. As shown in fig. 2, when the child car seat is leveled by driving the leveling device 203, the leveling device 203 is shown to be exposed below the base 202 against the base 202. The specific construction of the leveling device 203 described in the child car seat of the present application is as follows.
As shown in fig. 3 to 15, the leveling device for the child car safety seat according to the present application comprises a first bracket 1, a second bracket 2 and a leveling assembly. The leveling assembly comprises a sliding piece 3, a connecting piece 4, an adjusting mechanism 5, a locking mechanism 6, a plumb piece 7 and an unlocking piece 8.
The first bracket 1 is fixedly installed at the bottom of the base 202. The first bracket 1 is provided with a leveling plane 11 for indicating whether the child car safety seat is horizontal or not. In this embodiment, the first bracket 1 includes an outer sleeve 14, an inner sleeve 15, and an inner cover 16. The outer sleeve 14 is of a box body structure, the inside of the outer sleeve is hollow, the lower end of the outer sleeve is open, the upper end face of the outer sleeve is the leveling plane 11, and the lower end face of the outer sleeve is an inclined plane with low left and high right. The inner sleeve 15 is fixedly arranged in the outer sleeve 14, the inner sleeve 15 is of a box body structure, the upper part of the inner sleeve 15 is opened, and the inner cavity of the inner sleeve 15 is provided with a sliding groove 12 for the sliding part 3 to slide. Two guide strips 13 are respectively arranged on the front and rear inner walls of the chute 12, and the extending direction of the guide strips 13 is perpendicular to the leveling plane 11.
The inner cover 16 is covered on the inner sleeve 15. The upper end surface of the inner cover 16 is parallel to the leveling plane 11. The inner lid 16 is provided with a fifth shaft 105 and a sixth shaft 106. The axes of the fifth shaft 105 and the sixth shaft 106 are perpendicular to the leveling plane 11.
The second bracket 2 is pivotally connected to the first bracket 1 via a first shaft 101. The axis of the first shaft 101 is parallel to the leveling plane 11 and also to the horizontal plane. The second bracket 2 is also in a box structure, the inside of the second bracket is hollow, the upper end of the second bracket is open, and the second bracket 2 is inserted into the outer sleeve 14 from the lower end opening of the outer sleeve 14. The left lower part of the outer sleeve 14 and the right lower part of the second bracket 2 are supported together on a mounting plane on which the child car seat leveling device is mounted.
The first bracket 1 and the second bracket 2 are respectively propped against the installation plane and jointly support the child car safety seat to enable the child car safety seat to stand on the installation plane. The mounting plane described herein is the upper surface of the car seat 200.
The leveling component is arranged between the first bracket 1 and the second bracket 2 and is respectively connected with the first bracket 1 and the second bracket 2. The leveling assembly is used for driving the first bracket 1 and the second bracket 2 to rotate relatively. The leveling assembly has a locked state and a free-acting unlocked state. When the leveling plane 11 intersects with the horizontal plane, the child car safety seat is in an inclined state, the leveling assembly is triggered to enter an unlocking state, and the leveling assembly acts to drive the first bracket 1 and the second bracket 2 to rotate relatively so as to change the angle between the leveling plane 11 and the horizontal plane. When the leveling plane 11 is parallel or coincident with the horizontal plane, the child car seat is in a horizontal state, the leveling assembly is triggered into a locked state, and the first bracket 1 and the second bracket 2 are locked to each other.
Specifically, the slider 3 is slidably connected to the first bracket 1. In this embodiment, the sliding member 3 is provided with a guiding slot 31 corresponding to the guiding bar 13, and the extending direction of the guiding slot 31 is also perpendicular to the leveling plane 11. The sliding member 3 is slidably mounted in the slide groove 12, and the sliding member 3 can slide up and down in the slide groove 12. When the sliding member 3 is installed in the chute 12, the guide bar 13 is inserted into the guide groove 31, and the sliding member 3 slides up and down under the guiding action of the guide bar 13 and the guide groove 31.
A screw hole 32 is provided in the slider 3 in the up-down direction, and the screw hole 32 penetrates the slider 3.
The link 4 is pivotally connected to the slider 3 and the second bracket 2, respectively. Specifically, the connecting member 4 is in a rod structure, an upper portion of the connecting member 4 is pivotally connected to the sliding member 3 via a second shaft 102, and a lower portion of the connecting member 4 is pivotally connected to the second bracket 2 via a third shaft 103. The second shaft 102 and the third shaft 103 are parallel to the axis of the first shaft 101.
The first bracket 1, the second bracket 2, the connecting piece 4 and the sliding piece 3 form a crank sliding block mechanism.
The adjusting mechanism 5 is used for driving the sliding piece 3 to slide relative to the first bracket 1. In this embodiment, the adjusting mechanism 5 includes a screw rod 51, a knob 52 fixedly provided on the screw rod 51, and the screw hole 32. The screw rod 51 is screwed into the screw hole 32. Screwing the knob 52 can drive the screw rod 51 to move up and down relative to the slider 3.
The locking mechanism 6 is used for locking the adjusting mechanism 5. In this embodiment, the locking mechanism 6 includes a ratchet 61, a left pawl 62, a right pawl 63, a left spring 64, and a right spring 65. The ratchet wheel 61 is fixedly arranged on the screw rod 51 on the adjusting mechanism 5. The center line of the ratchet wheel 61 is collinear with the center line of the screw 51. The left pawl 62 is disposed on the left side of the ratchet 61, the left pawl 62 being pivotally connected to the fifth shaft 105 on the inner cover 16. The right pawl 63 is disposed on the right side of the ratchet wheel 61, and the right pawl 63 is pivotally connected to a sixth shaft 106 on the inner cover 16. The left spring 64 is connected to the left pawl 62 and the inner cover 16, respectively, and the left spring 64 is used for providing an elastic force to make the left pawl 62 to be clamped against the ratchet wheel 61. The right spring 65 is connected with the right pawl 63 and the inner cover 16, respectively, and the right spring 65 is used for providing elastic force to enable the right pawl 63 to be clamped against the ratchet wheel 61.
The locking mechanism 6 has a locked state and an unlocked state. When the locking mechanism 6 is in a locking state, the left pawl 62 and the right pawl 63 are blocked in the tooth grooves of the ratchet wheel 61 left by right to lock the ratchet wheel 61; when the lock mechanism 6 is in the unlock state, one of the left pawl 62 and the right pawl 63 rotates to be separated from the ratchet 61.
The upper part of the plumb 7 is pivotally connected to the inner sleeve 15 or the inner cover 16 of the first bracket 1 via a fourth shaft 104, and the lower part of the plumb 7 has a weight 71. The fourth shaft 104 and the first shaft 101 have axes parallel to each other.
The unlocking member 8 is slidably mounted on the first bracket 1. The unlocking piece 8 is connected with the plumb piece 7, and the unlocking piece 8 is used for driving the locking mechanism 6 to unlock. The plumb 7 swings left and right to drive the unlocking piece 8 to slide left and right on the first bracket 1, and the unlocking piece 8 slides left and right to drive the left pawl 62/right pawl 63 to rotate and separate from the ratchet 61. In this embodiment, the unlocking member 8 is provided with a clamping groove 81 matching with the plumb member 7, and left and right relief holes 82 and 83 located on the left and right sides of the clamping groove 81. The unlocking piece 8 is further provided with a left hook 84 and a right hook 85. When the unlocking member 8 is mounted on the first bracket 1, the plumb member 7 is inserted into the clamping groove 81, and the left and right side portions of the plumb member 7 are respectively abutted against the left and right groove walls of the clamping groove 81. The fifth shaft 105 is inserted into the left relief hole 82, and the sixth shaft 106 is inserted into the right relief hole 83. The left hook 84 hooks the left pawl 62 and the right hook 85 hooks the right pawl 63. The lower parts of the fifth shaft 105 and the sixth shaft 106 are provided with step surfaces, and when the unlocking piece 8 is installed on the first bracket, the lower end surface of the unlocking piece 8 is abutted against the step surfaces.
The plumb bob 7 rotates left and right around the fourth shaft 104 to further press the clamping groove 81, so as to drive the unlocking piece 8 to slide left and right on the step surface, and due to the arrangement of the left yielding hole 82 and the right yielding hole 83, the unlocking piece 8 can yield the fifth shaft 105 and the sixth shaft 106, so that the unlocking piece 8 can slide left and right conveniently.
The child car seat leveling device has a first state and a second state. When the child car seat leveling device is in the first state, the outer sleeve 14 of the first bracket 1 and the second bracket 2 are jointly supported on the installation plane. The leveling plane 11 is parallel or coincident with the horizontal plane. The plumb piece 7 is in a vertical state, and the unlocking piece 8 is separated from the locking mechanism 6 under the driving of the plumb piece 7. The left pawl 62 and the right pawl 63 are respectively clamped into tooth grooves of the ratchet wheel 61 to lock the ratchet wheel 61 and the screw rod 51, i.e. the locking mechanism 6 is in a locking state. At this time, the screw rod 1 cannot be rotated by screwing the knob 52.
When the child car safety seat leveling device is in a second state, the first bracket 1 and the second bracket 2 are supported on an installation plane together, the leveling plane 11 is intersected with a horizontal plane, the plumb bob 7 approaches from an inclined state to a vertical state until the leveling device is in the vertical state under the action of self gravity, and the unlocking piece 8 drives the locking mechanism 6 to unlock under the drive of the plumb bob 7. At this time, the adjustment mechanism 5 can automatically operate. The adjusting mechanism 5 acts to drive the first bracket 1 and the second bracket 2 to rotate relatively through the sliding piece 3 and the connecting piece 4.
The following specifically describes the leveling operation procedure of the child car safety seat leveling device installed on the installation plane:
when the installation plane is parallel or coincident with the horizontal plane, the child car safety seat leveling device is arranged on the installation plane, the locking mechanism 6 enters a locking state, the child car safety seat leveling device is always in a first state, the leveling plane 11 is parallel with the horizontal plane, the plumb bob piece 7 is in a vertical state, the first bracket 1 and the second bracket 2 are fixed in mutual angle, and the first bracket 1 and the second bracket 2 cannot rotate relatively.
When the installation plane is high left and low right, the child car safety seat leveling device is arranged on the installation plane, the child car safety seat leveling device enters a second state, the leveling plane is intersected with the horizontal plane, the plumb 7 automatically approaches to a vertical state from an inclined state under the action of self gravity until the plumb 7 is in the vertical state, namely, the plumb 7 rotates around a fourth shaft 104 from left to right, the plumb 7 props against the clamping groove 81 to drive the unlocking piece 8 to slide rightwards, the left hook 84 of the unlocking piece 8 pulls the left pawl 62, and the left pawl 62 rotates around a fifth shaft 105 away from the ratchet 61 to be separated from the ratchet 61 against the action of the elastic force of the left spring 64. Thus, the locking mechanism 6 is unlocked, and the adjusting mechanism 5 can freely move. The operator screws the knob 52, drives the screw rod 51 to rotate in the threaded hole 32 to drive the sliding piece 3 to slide downwards in the sliding groove 12, so that the first bracket 1, the second bracket 2 and the connecting piece 4 move under the driving of the sliding piece 3 due to the action of the crank sliding block structure, and the first bracket 1 and the second bracket 2 rotate relative to the first shaft 101 to adjust the postures until the leveling plane 11 is parallel or coincident with the horizontal plane. The unlocking piece 8 also tends to horizontally align under the drive of the first bracket 1, meanwhile, as the plumb piece 7 is in a vertical state, the unlocking piece 8 moves rightwards under the extrusion action of the plumb piece 7, the left hook 84 and the left pawl 62 are mutually released, the left pawl 62 is clamped in the tooth slot of the ratchet wheel 61 again under the elastic action of the left spring 64, the ratchet wheel 61 and the screw rod 51 are locked by the left pawl 62 and the right pawl 63, namely the adjusting mechanism 5 is locked again, and the child car safety seat leveling device enters a first state. This also gives an indication to the operator that the child car seat leveling device has been in the first state when the knob 52 can no longer be turned, the leveling plane 11 being parallel or coincident with the horizontal plane.
Similarly, when the installation plane is low on the left and high on the right, the child car safety seat leveling device is arranged on the installation plane, the child car safety seat leveling device enters a second state, the leveling plane is intersected with the horizontal plane, the plumb 7 automatically approaches to a vertical state from an inclined state under the action of self gravity until the plumb is in the vertical state, namely, the plumb 7 rotates around the fourth shaft 104 from the right to the left, the plumb 7 props against the clamping groove 81 to drive the unlocking piece 8 to slide leftwards, the right hook 85 of the unlocking piece 8 pulls the right pawl 63, and the right pawl 63 rotates around the sixth shaft 106 to a direction away from the ratchet 61 against the action of the elastic force of the right spring 65 so as to be separated from the ratchet 61. Thus, the locking mechanism 6 is unlocked, and the adjusting mechanism 5 can freely move. The operator screws the knob 52, drives the screw rod 51 to rotate in the threaded hole 32 to drive the sliding piece 3 to slide downwards in the sliding groove 12, so that the first bracket 1, the second bracket 2 and the connecting piece 4 move under the driving of the sliding piece 3 due to the action of the crank sliding block structure, and the first bracket 1 and the second bracket 2 rotate relative to the first shaft 101 to adjust the postures until the leveling plane 11 is parallel or coincident with the horizontal plane. The unlocking piece 8 also tends to horizontally straighten under the drive of the first bracket 1, meanwhile, as the plumb piece 7 is in a vertical state, the unlocking piece 8 moves leftwards under the extrusion action of the plumb piece 7, the right hook 85 and the right pawl 63 are mutually released, the right pawl 63 is clamped in the tooth slot of the ratchet wheel 61 again under the elastic action of the right spring 65, the ratchet wheel 61 and the screw rod 51 are locked by the left pawl 62 and the right pawl 63, namely, the adjusting mechanism 5 is locked again, and the child car safety seat leveling device enters a first state. This also gives an indication to the operator that the child car seat leveling device has been in the first state when the knob 52 can no longer be turned, the leveling plane 11 being parallel or coincident with the horizontal plane.
According to the application, the crank block mechanism formed by the first bracket 1, the second bracket 2, the sliding piece 3 and the connecting piece 4 is used as a linkage mechanism, the screw rod 51 is in threaded connection with the sliding piece 3 to realize the driving sliding of the sliding piece 3, the adjusting mechanism 5 is automatically locked when the leveling plane 11 is horizontal through the structures of the left pawl 62, the right pawl 63 and the ratchet wheel 61, the automatic unlocking of the adjusting mechanism 5 when the leveling plane 11 is inclined is realized through the plumb piece 7, the structure is novel, the adjusting operation is simple, the semi-automatization can be realized, and the leveling accuracy is high.
As described above, we have fully described the gist of the present application, but the present application is not limited to the above-described embodiments and implementation methods. A practitioner of the related art may make various changes and implementations within the scope of the technical idea of the present application.
Claims (10)
1. A child car seat leveling device for adjusting the posture of a child car seat, comprising:
the child car safety seat comprises a first bracket (1), wherein the first bracket (1) is fixedly arranged on the child car safety seat, and a leveling plane (11) used for representing whether the child car safety seat is horizontal or not is arranged on the first bracket (1);
a second bracket (2), wherein the second bracket (2) is pivotally connected with the first bracket (1);
the leveling component is arranged between the first bracket (1) and the second bracket (2) and is respectively connected with the first bracket (1) and the second bracket (2), the leveling component is used for driving the first bracket (1) and the second bracket (2) to rotate relatively, and the leveling component has a locking state and an unlocking state capable of freely acting;
the first bracket (1) and the second bracket (2) are respectively propped against the installation plane and jointly support the child car safety seat to enable the child car safety seat to stand on the installation plane;
when the leveling plane (11) is intersected with the horizontal plane, the child car safety seat is in an inclined state, the leveling assembly is triggered to enter an unlocking state, and the leveling assembly acts to drive the first bracket (1) and the second bracket (2) to relatively rotate so as to change the angle between the leveling plane (11) and the horizontal plane;
when the leveling plane (11) is parallel or coincident with the horizontal plane, the child car safety seat is in a horizontal state, the leveling assembly is triggered to enter a locking state, the first bracket (1) and the second bracket (2) are mutually locked,
wherein, the leveling assembly includes:
a sliding piece (3), wherein the sliding piece (3) is in sliding connection with the first bracket (1);
the connecting piece (4) is respectively connected with the sliding piece (3) and the second bracket (2) in a pivot manner;
the adjusting mechanism (5) is used for driving the sliding piece (3) to slide relative to the first bracket (1);
a locking mechanism (6), wherein the locking mechanism (6) is used for locking the adjusting mechanism (5) to enable the leveling assembly to be in a locking state;
the upper part of the plumb piece (7) is in pivot connection with the first bracket (1), and the lower part of the plumb piece (7) is provided with a balancing weight (71);
the unlocking piece (8), the unlocking piece (8) is connected with the plumb piece (7), and the unlocking piece (8) is used for driving the locking mechanism (6) to unlock so that the leveling assembly is in an unlocking state;
when the leveling plane (11) is intersected with the horizontal plane, the plumb bob (7) approaches to the vertical state from the inclined state under the action of self gravity, the unlocking piece (8) drives the locking mechanism (6) to unlock under the drive of the plumb bob (7), and the adjusting mechanism (5) acts to drive the first bracket (1) and the second bracket (2) to rotate relatively through the sliding piece (3) and the connecting piece (4);
when the leveling plane (11) is parallel or coincident with the horizontal plane, the plumb (7) is in a vertical state, the unlocking piece (8) is separated from the locking mechanism (6), and the locking mechanism (6) locks the adjusting mechanism (5).
2. The child car seat leveling device according to claim 1, wherein a chute (12) is provided on the first bracket (1), the sliding member (3) is slidably mounted in the chute (12), and the sliding member (3) can slide up and down in the chute (12).
3. The child car seat leveling device according to claim 2, wherein one of the sliding groove (12) and the sliding piece (3) is provided with a guide bar (13), the other part is provided with a guide groove (31), the guide bar (13) is inserted into the guide groove (31), and the sliding piece (3) slides up and down under the guidance of the guide bar (13) and the guide groove (31).
4. Child car safety seat leveling device according to claim 1, characterized in that the adjusting mechanism (5) comprises a screw rod (51), a threaded hole (32) provided in the slider (3), the screw rod (51) being in threaded connection with the threaded hole (32).
5. A child car seat leveling device according to claim 4, characterized in that the adjustment mechanism (5) further comprises a knob (52) fixedly arranged on the screw rod (51).
6. Child car safety seat leveling device according to claim 1, characterized in that the locking mechanism (6) comprises:
a ratchet wheel (61), wherein the ratchet wheel (61) is fixedly arranged on the adjusting mechanism (5);
a left pawl (62), the left pawl (62) is arranged at the left side of the ratchet wheel (61), and the left pawl (62) is pivotally connected with the first bracket (1);
a right pawl (63), the right pawl (63) is arranged on the right side of the ratchet wheel (61), and the right pawl (63) is pivotally connected with the first bracket (1);
a left spring (64), wherein the left spring (64) is connected with the left pawl (62), and the left spring (64) is used for providing elastic force to enable the left pawl (62) to be clamped on the ratchet wheel (61);
and the right spring (65), the right spring (65) is connected with the right pawl (63), and the right spring (65) is used for providing elastic force to enable the right pawl (63) to be clamped against the ratchet wheel (61).
7. The child car seat leveling device according to claim 6, wherein the locking mechanism (6) has a locked state and an unlocked state, and when the locking mechanism (6) is in the locked state, the left pawl (62) and the right pawl (63) are blocked in the tooth grooves of the ratchet wheel (61) one by one to lock the ratchet wheel (61); when the locking mechanism (6) is in an unlocked state, one of the left pawl (62) and the right pawl (63) rotates to be separated from the ratchet (61).
8. The child car seat leveling device according to claim 6, wherein the unlocking member (8) is slidably mounted on the first bracket (1), the plumb (7) swings left and right to drive the unlocking member (8) to slide left and right on the first bracket (1), and the unlocking member (8) slides left and right to drive the left pawl (62)/right pawl (63) to rotate and separate from the ratchet (61).
9. Child car seat leveling device according to claim 1, characterized in that the second bracket (2) is pivotally connected to the first bracket (1) by a first shaft (101), the upper part of the connecting piece (4) is pivotally connected to the sliding piece (3) by a second shaft (102), the lower part of the connecting piece (4) is pivotally connected to the second bracket (2) by a third shaft (103), the upper part of the plumb (7) is pivotally connected to the first bracket (1) by a fourth shaft (104), and the axes of the first shaft (101), the second shaft (102), the third shaft (103) and the fourth shaft (104) are parallel to each other.
10. A child car seat, characterized in that: the child car seat comprises a seat body (201), a base (202) and the child car seat leveling device according to any one of claims 1 to 9, wherein the child car seat leveling device is mounted on the base (202), and the child car seat adjusts the posture of the child car seat through the child car seat leveling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592262.XA CN108839591B (en) | 2018-06-11 | 2018-06-11 | Child car safety seat leveling device and child car safety seat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592262.XA CN108839591B (en) | 2018-06-11 | 2018-06-11 | Child car safety seat leveling device and child car safety seat |
Publications (2)
| Publication Number | Publication Date |
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| CN108839591A CN108839591A (en) | 2018-11-20 |
| CN108839591B true CN108839591B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810592262.XA Active CN108839591B (en) | 2018-06-11 | 2018-06-11 | Child car safety seat leveling device and child car safety seat |
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| FR3035623A1 (en) * | 2015-04-28 | 2016-11-04 | Dorel France Sa | CAR SEAT WITH FOLDING FORCE LEG AND CORRESPONDING CAR SEAT HEADER |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108839591A (en) | 2018-11-20 |
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