CN111923796B - Headrest adjusting device for child seat and control method thereof - Google Patents
Headrest adjusting device for child seat and control method thereof Download PDFInfo
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- CN111923796B CN111923796B CN202010841281.9A CN202010841281A CN111923796B CN 111923796 B CN111923796 B CN 111923796B CN 202010841281 A CN202010841281 A CN 202010841281A CN 111923796 B CN111923796 B CN 111923796B
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- gear
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- hook
- headrest adjusting
- handle
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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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
- B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
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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
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention relates to a headrest adjusting device for a child seat and a control method thereof, and the headrest adjusting device comprises an upper sealing cover (1), a first return spring (2), a headrest adjusting handle (3), an unlocking hook (4), a gear pin (5), a second return spring (6), a gear locking rod (7), a base (8), a shaft tube (9), a headrest adjusting gear seat (10), a headrest substrate (11) and an unlocking hook pin shaft (12); the headrest is controlled by one hand to adjust the upward or downward movement of the handle, so that the unlocking or locking function of the current gear can be realized, the operation is simple and the use is convenient even in a relatively small environment, the good operation feeling is ensured, and the riding comfort and the safety of children are improved; the headrest adjusting device is made of non-metal materials, so that personal safety when the headrest adjusting device is in contact with the body of a child is guaranteed, and meanwhile, the headrest adjusting device does not pose a safety threat to the body of the child.
Description
Technical Field
The invention relates to the technical field of child baskets, in particular to a child basket headrest gear adjusting device and a control method thereof.
Background
Among the prior art, the mode that children's safety seat head rest adjusting device mostly adopted both hands to adjust, the regulation and control mode operation of both hands is very inconvenient in the inside or some narrow and small environment of car, experiences and feels poor, can not effectively realize children's seat's head rest position control, and the while misoperation also can influence children's experience sense and comfort.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides a child basket headrest gear adjusting device and a control method thereof.
The technical scheme of the invention is as follows:
a headrest adjustment device for a child seat, characterized by: the adjusting device comprises an upper sealing cover, a first return spring, a headrest adjusting handle, an unlocking hook, a gear pin, a second return spring, a gear locking rod, a base, a shaft tube, a headrest adjusting gear seat, a headrest base plate and an unlocking hook pin shaft; wherein,
the headrest adjusting handle is arranged at the front side of the middle part of the headrest base plate, the first reset spring is arranged in the headrest adjusting handle, the headrest adjusting handle can reset under the action of the first reset spring after moving upwards or downwards, and the upper sealing cover is arranged on the front side of the lower end of the headrest adjusting handle;
the rear end of the unlocking hook pin shaft is fixedly arranged on the headrest device, the front end of the unlocking hook pin shaft penetrates out of the middle of the unlocking hook, the unlocking hook is positioned on the rear side of the lower end of the headrest adjusting handle and can rotate around a middle unlocking hook pin shaft, the rear end of the gear pin is fixedly arranged on the base, the middle end of the gear pin is fixedly connected with the inner side of the gear lock rod, the front end of the gear pin penetrates out of the lower end of the headrest adjusting handle and is positioned on the inner side of the unlocking hook, the second reset spring is positioned between the gear lock rods on the left side and the right side, and the gear lock rod is arranged in the shaft tube and can move relatively along the shaft tube in the axial direction;
the gear seat is adjusted to the head rest sets up in the left and right sides of head rest base plate, has seted up a plurality of gear hole in the inboard of every head rest adjustment gear seat, and when the gear locking lever stretches out to both sides outside along the central siphon axial in the inside of central siphon, the outer end of gear locking lever gets into the locking of the downthehole inside in order to realize current gear of the gear that corresponds, and the gear locking lever is when the inside of central siphon is followed the central siphon axial and is contracted to both sides inside, thereby the outer end of gear locking lever is deviate from the inside unblock of realizing current gear of the downthehole portion of the gear that corresponds.
Further, first reset spring is provided with 2 in the inside of headrest adjustment handle along left right direction, and one of them first reset spring sets up in the inside of headrest adjustment handle and is close to the upside setting, and another first reset spring sets up in the inside of headrest adjustment handle and is close to the downside setting.
Further, the handle is adjusted to the headrest includes handle upper end, handle middle part and handle lower tip, is provided with the handle pull ring on the handle upper end set up the spring groove that is used for holding a reset spring in the middle part of the handle, has seted up the spout in the middle of two spring grooves, the headrest base plate upwards stretches out and is provided with the slide bar, the slide bar periphery is located to the spout cover and can be for the slide bar up-and-down motion in order to realize the up-and-down motion of handle is adjusted to the headrest.
Furthermore, two triangular blocks which are symmetrically arranged up and down are arranged on the rear side face of the lower end portion of the handle in a protruding mode backwards, the two triangular blocks are respectively arranged to be isosceles triangles, the vertexes of the two triangular blocks are connected, and the bottom lines of the two triangular blocks are parallel to each other.
Further, the unlocking hook comprises an upper hook body, a hook hole and a lower hook body; the upper hook body is connected with the lower hook body at an obtuse angle, and the hook hole is formed between the connection positions of the upper hook body and the lower hook body.
Furthermore, the upper end part of the upper hook body is provided with hook teeth which extend inwards.
Furthermore, the tail end of the lower hook body is fixedly provided with a lower hook ball, and the lower hook ball is located between the connecting positions of the two triangular blocks.
Furthermore, the gear lock rod comprises a lock rod body, a lock rod lightening hole, a pin shaft hole and a spring mounting end; the outer wall of the lock rod body is uniformly provided with a plurality of lock rod lightening holes along the axial direction and the radial direction, the inner side of the lock rod body is respectively provided with a pin shaft hole for the gear pin to penetrate through, and the inner end of the lock rod body is convexly provided with a spring mounting end extending into the second reset spring.
Further, the present invention also provides a method for controlling a headrest adjusting apparatus for a child seat, characterized in that: the method comprises the following steps: 1) when the gears are unlocked, the headrest adjusting handle is pulled upwards or downwards, the headrest adjusting handle drives two triangular blocks which are arranged on the rear side face of the lower end portion of the handle in a protruding mode and protrude backwards to move upwards or downwards synchronously, under the driving of the triangular blocks, the distance between lower hook balls on the left side and the right side is increased and is opened, so that the unlocking hook rotates around an unlocking hook pin shaft penetrating through the middle of the unlocking hook, the upper hook body rotates inwards and abuts against the gear pin, the gear pin presses the gear pin to move inwards, the gear pin drives a gear locking rod fixedly connected with the gear locking rod to move inwards, the gear locking rod contracts inwards along the axial direction of the shaft tube in the shaft tube, meanwhile, a second reset spring in the gear locking rod is compressed to contract inwards, and the outer end of the gear locking rod is separated from the inner portion of the corresponding gear hole, so that the unlocking of the current gear is achieved; at the moment, the selection of the corresponding gear can be realized by selecting the position of the headrest adjusting handle at the gear hole corresponding to the headrest adjusting gear seat;
2) when the gear is locked, the gear lock rod is driven to move to the position of the gear hole corresponding to the gear adjusting seat by the headrest adjusting handle, the headrest adjusting handle drives the two triangular blocks which are arranged on the rear side surface of the lower end part of the handle in a protruding mode backwards under the reset action of the first reset spring to return to the initial position, the lower hook ball can move to the vertex connecting position of the two triangular blocks, the distance between the lower hook balls on the two sides is reduced and the lower hook balls on the two sides is retracted, so that the unlocking hook rotates around an unlocking hook pin shaft penetrating through the middle part of the unlocking hook body, the upper hook body rotates outwards and is separated from the gear pin, the gear pin drives the gear lock rod fixedly connected with the gear lock rod to move outwards under the action of the second reset spring, the gear lock rod extends outwards from the inside of the shaft tube to the outside of the two sides along the axial direction of the shaft tube, the outer end of the gear lock rod extends out of the corresponding gear hole, and the outer end of the gear lock rod enters the corresponding gear hole to realize the locking of the current gear, the first return spring drives the headrest adjusting handle to reset by means of restoring force.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention provides a headrest adjusting device for a child seat and a control method thereof, so that the function of unlocking or locking a current gear can be realized by controlling the headrest adjusting handle to move upwards or downwards by one hand, the headrest adjusting device can be operated simply and conveniently even in a relatively small environment, good operation feeling is ensured, and the riding comfort and safety of a child are improved.
2) The headrest adjusting device is made of non-metal materials, so that personal safety when the headrest adjusting device is in contact with the body of a child is guaranteed, and meanwhile, the headrest adjusting device does not pose a safety threat to the body of the child.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is an enlarged view of the structure at position A in FIG. 2;
FIG. 4 is a schematic structural view of the shift lock configuration of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 without the shaft tube;
FIG. 6 is a bottom view of the structure of FIG. 4;
FIG. 7 is a schematic view illustrating the structure of a headrest adjusting handle according to the present invention;
FIG. 8 is a bottom view of the structure of FIG. 7;
FIG. 9 is a schematic view of the shift position lock lever of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and will therefore make the scope of the invention more clearly and clearly defined.
Referring to fig. 1 to 9, a headrest adjusting apparatus for a child seat and a control method thereof according to the present invention are provided.
The specific technical scheme is as follows:
a headrest adjustment device for a child seat, characterized by: the adjusting device comprises an upper sealing cover 1, a first return spring 2, a headrest adjusting handle 3, an unlocking hook 4, a gear pin 5, a second return spring 6, a gear locking rod 7, a base 8, a shaft tube 9, a headrest adjusting gear seat 10, a headrest base plate 11 and an unlocking hook pin shaft 12; wherein,
the headrest adjusting handle 3 is arranged at the front side of the middle part of the headrest base plate 11, the first reset spring 2 is arranged inside the headrest adjusting handle 3, the headrest adjusting handle 3 can reset under the action of the first reset spring 2 after moving upwards or downwards, and the upper sealing cover 1 is arranged at the front side of the lower end of the headrest adjusting handle 3;
the rear end of an unlocking hook pin shaft 12 is fixedly arranged on the headrest device, the front end of the unlocking hook pin shaft 12 penetrates out of the middle of an unlocking hook 4, the unlocking hook 4 is positioned on the rear side of the lower end of a headrest adjusting handle 3 and can rotate around the middle unlocking hook pin shaft 12, the rear end of a gear pin 5 is fixedly arranged on a base 8, the middle end of the gear pin 5 is fixedly connected with the inner side of a gear lock rod 7, the front end of the gear pin 5 penetrates out of the lower end of the headrest adjusting handle 3 and is positioned on the inner side of the unlocking hook 4, a second reset spring 6 is positioned between the gear lock rods 7 on the left side and the right side, and the gear lock rod 7 is arranged in an axle tube 9 and can move relatively along the axial direction of the axle tube 9;
the headrest adjusting gear seats 10 are arranged on the left side and the right side of the headrest base plate 11, a plurality of gear holes 10-1 are formed in the inner side of each headrest adjusting gear seat 10, when the gear lock rod 7 extends out of the shaft tube 9 axially towards the two sides in the shaft tube 9, the outer end of the gear lock rod 7 enters the corresponding gear hole 10-1 to lock a current gear, and when the gear lock rod 7 shrinks towards the two sides in the shaft tube 9 axially along the shaft tube 9, the outer end of the gear lock rod 7 is separated from the corresponding gear hole 10-1 to unlock the current gear.
Specifically, 2 first return springs 2 are arranged inside the headrest adjusting handle 3 along the left-right direction, one of the first return springs 2 is arranged inside the headrest adjusting handle 3 and close to the upper side, and the other first return spring 2 is arranged inside the headrest adjusting handle 3 and close to the lower side; therefore, after the headrest adjusting handle 3 moves upwards or downwards, the resetting effect can be realized under the action of the first resetting spring 2.
Specifically, the headrest adjusting handle 3 comprises an upper end portion 3-1 of the handle, a middle portion 3-2 of the handle and a lower end portion 3-3 of the handle, a handle pull ring 3-11 is arranged on the upper end portion 3-1 of the handle, a spring groove 3-21 used for accommodating the first return spring 2 is formed in the middle portion 3-2 of the handle, a sliding groove 3-22 is formed between the two spring grooves 3-21, a sliding rod 11-1 extends upwards from the headrest base plate 11, and the sliding groove 3-22 is sleeved on the periphery of the sliding rod 11-1 and can move up and down relative to the sliding rod 11-1 to achieve up and down movement of the headrest adjusting handle 3.
Specifically, two triangular blocks 3-32 which are symmetrically arranged up and down are arranged on the rear side surface of the lower end portion 3-3 of the handle in a protruding mode backwards, the two triangular blocks 3-32 are respectively arranged to be isosceles triangles, the vertexes of the two triangular blocks 3-32 are connected, the bottom lines of the two triangular blocks are parallel to each other, and the movement locus of the unlocking hook 4 is controlled conveniently through the arrangement of the triangular blocks 3-32, so that the gear locking and unlocking functions are achieved.
Specifically, the unlocking hook 4 comprises an upper hook body 4-1, a hook hole 4-2 and a lower hook body 4-3; the upper hook body 4-1 is connected with the lower hook body 4-3 at an obtuse angle, the hook hole 4-2 is formed between the connection positions of the upper hook body 4-1 and the lower hook body 4-3, and the unlocking hook pin shaft 12 penetrates through the hook hole 4-2 to realize the rotation of the unlocking hook 4 around the unlocking hook pin shaft 12.
Specifically, the upper end part of the upper hook body 4-1 is provided with a hook tooth 4-11 which extends inwards, and the hook tooth 4-11 further ensures a good pressing effect with the gear pin 5, so that the situation that the hook is disengaged while pressing is avoided.
Specifically, the tail end of the lower hook body 4-3 is fixedly provided with a lower hook ball 4-31, the lower hook ball 4-4 is located between the connecting positions of the two triangular blocks 3-32, and the unlocking hook 4 rotates around the middle unlocking hook pin shaft 12 through the movement of the lower hook ball 4-4 along the waist line of the triangular block 3-32, so that the locking and unlocking functions of the current gear are realized.
Specifically, the gear lock rod 7 comprises a lock rod body 7-1, a lock rod lightening hole 7-2, a pin shaft hole 7-3 and a spring mounting end 7-4; the outer wall of the lock rod body 7-1 is uniformly provided with a plurality of lock rod lightening holes 7-2 along the axial direction and the radial direction so as to lighten the weight of the lock rod body 7-1 and facilitate the axial movement of the lock rod body 7-1 in the shaft tube 9, the inner side of the lock rod body 7-1 is respectively provided with a pin shaft hole 7-3 through which the gear pin 5 passes, thereby facilitating the fixation of the gear pin 5 relative to the lock rod body 7-1, and the inner end of the lock rod body 7-1 is convexly provided with a spring mounting end 7-4 which extends into the second reset spring 6 so as to realize the uniform extension and retraction of the two ends of the second reset spring 6 during unlocking and locking.
Specifically, the headrest adjusting device is made of non-metal materials, so that personal safety when the headrest adjusting device is in contact with the body of a child is guaranteed, and meanwhile, the headrest adjusting device threatens the body of the child safely.
Specifically, the invention also provides a control method of the headrest adjusting device for the child seat, which comprises the following steps:
specifically, the invention also provides a control method of the headrest adjusting device for the child seat, which comprises the following steps:
1) when the gear is unlocked, the headrest adjusting handle 3 is pulled upwards or downwards, the headrest adjusting handle 3 drives the two triangular blocks 3-32 which are convexly arranged backwards on the rear side surface of the lower end part 3-3 of the handle to synchronously move upwards or downwards correspondingly, under the drive of the triangular blocks 3-32, the distance between the lower hook balls 4-31 at the left and right sides is increased and opened, so that the unlocking hook 4 rotates around the unlocking hook pin shaft 12 penetrating through the middle part of the unlocking hook, thereby leading the upper hook body 4-1 to rotate towards the inner side and abut against the gear pin 5 and simultaneously press the gear pin 5 to move towards the inner side, leading the gear pin 5 to drive the gear lock rod 7 fixedly connected with the gear pin to move towards the inner side, thereby realizing that the gear position lock rod 7 is contracted inwards towards both sides along the axial direction of the shaft tube 9 in the shaft tube 9 and simultaneously compresses the second return spring 6 in the gear position lock rod to be contracted inwards, the outer end of the gear lock rod 7 is pulled out of the corresponding gear hole 10-1, so that unlocking of the current gear is realized; at the moment, the selection of the corresponding gear can be realized by selecting the position of the headrest adjusting handle 3 in the gear hole 10-1 corresponding to the headrest adjusting gear seat 10;
2) when the gear is locked, the headrest adjusting handle 3 drives the gear lock rod 7 to move to the position of the gear hole 10-1 corresponding to the headrest adjusting gear seat 10, the headrest adjusting handle 3 drives the two triangular blocks 3-32 which are arranged on the rear side surface of the lower end part 3-3 of the handle in a protruding mode backwards to return to the initial position under the reset action of the first reset spring 2, the lower hook balls 4-31 can move to the vertex connecting positions of the two triangular blocks 3-32, the distance between the lower hook balls on the two sides is reduced and the lower hook balls on the two sides are retracted, so that the unlocking hook 4 rotates around an unlocking hook pin shaft 12 penetrating through the middle part of the unlocking hook 4, the upper hook body 4-1 rotates outwards and is separated from the gear pin 5, the gear pin 5 drives the gear lock rod 7 fixedly connected with the gear pin to move outwards under the action of the second reset spring 6, and the gear lock rod 7 extends outwards along the axial direction of the shaft tube 9 in the shaft tube 9, and then the outer end of the gear position lock rod 7 extends out of the corresponding gear position hole 10-1, so that the outer end of the gear position lock rod 7 enters the corresponding gear position hole 10-1 to realize the locking of the current gear position, and then the first reset spring 2 drives the headrest adjusting handle 3 to realize the resetting by virtue of the restoring force.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A headrest adjustment device for a child seat, characterized by: the adjusting device comprises an upper sealing cover (1), a first return spring (2), a headrest adjusting handle (3), a lock releasing hook (4), a gear pin (5), a second return spring (6), a gear lock rod (7), a base (8), a shaft tube (9), a headrest adjusting gear seat (10), a headrest base plate (11) and a lock releasing hook pin shaft (12); wherein,
the headrest adjusting handle (3) is arranged at the front side of the middle of the headrest base plate (11), the first reset spring (2) is arranged inside the headrest adjusting handle (3), the headrest adjusting handle (3) can reset under the action of the first reset spring (2) after moving upwards or downwards, and the upper sealing cover (1) is arranged on the front side of the lower end of the headrest adjusting handle (3);
the rear end of the unlocking hook pin shaft (12) is fixedly arranged on the headrest device, the front end of the unlocking hook pin shaft (12) penetrates out of the middle of the unlocking hook (4), the unlocking hook (4) is located on the rear side of the lower end of the headrest adjusting handle (3) and can rotate around the middle unlocking hook pin shaft (12), the rear end of the gear pin (5) is arranged on the base (8), the middle end of the gear pin (5) is fixedly connected with the inner side of the gear locking rod (7), the front end of the gear pin (5) penetrates out of the lower end of the headrest adjusting handle (3) and is located on the inner side of the unlocking hook (4), the second reset spring (6) is located between the gear locking rods (7) on the left side and the right side, and the gear locking rod (7) is arranged in the shaft tube (9) and can move axially and relatively along the shaft tube (9);
the headrest adjusting gear seats (10) are arranged on the left side and the right side of a headrest base plate (11), a plurality of gear holes (10-1) are formed in the inner side of each headrest adjusting gear seat (10), when the gear lock rod (7) extends out of the shaft tube (9) along the axial direction of the shaft tube (9) to the outer sides of the two sides, the outer end of the gear lock rod (7) enters the corresponding gear hole (10-1) to lock a current gear, and when the gear lock rod (7) shrinks towards the inner sides of the two sides along the axial direction of the shaft tube (9) in the shaft tube (9), the outer end of the gear lock rod (7) is separated from the inner part of the corresponding gear hole (10-1) to unlock the current gear;
the number of the first reset springs (2) is 2 in the headrest adjusting handle (3) along the left-right direction, one of the first reset springs (2) is arranged in the headrest adjusting handle (3) and close to the upper side, and the other first reset spring (2) is arranged in the headrest adjusting handle (3) and close to the lower side;
the headrest adjusting handle (3) comprises an upper handle end part (3-1), a middle handle part (3-2) and a lower handle end part (3-3), a handle pull ring (3-11) is arranged on the upper handle end part (3-1), a spring groove (3-21) for accommodating a first reset spring (2) is formed in the middle handle part (3-2), a sliding groove (3-22) is formed in the middle of the two spring grooves (3-21), a sliding rod (11-1) is upwards extended from the headrest base plate (11), and the sliding groove (3-22) is sleeved on the periphery of the sliding rod (11-1) and can move up and down relative to the sliding rod (11-1) to realize the up-and-down movement of the headrest adjusting handle (3);
two triangular blocks (3-32) which are symmetrically arranged up and down are arranged on the rear side surface of the lower end part (3-3) of the handle in a protruding mode backwards, the two triangular blocks (3-32) are respectively arranged to be isosceles triangles, the top points of the two triangular blocks (3-32) are connected, and the bottom lines of the two triangular blocks are parallel to each other.
2. A headrest adjustment device for a child seat according to claim 1, characterized in that: the unlocking hook (4) comprises an upper hook body (4-1), a hook hole (4-2) and a lower hook body (4-3); the upper hook body (4-1) is connected with the lower hook body (4-3) in an obtuse angle, and the hook hole (4-2) is formed between the connection positions of the upper hook body (4-1) and the lower hook body (4-3).
3. A headrest adjustment device for a child seat according to claim 2, characterized in that: the upper end part of the upper hook body (4-1) is provided with hook teeth (4-11) which extend inwards.
4. A headrest adjustment device for a child seat according to claim 2, characterized in that: the tail end of the lower hook body (4-3) is fixedly provided with a lower hook ball (4-31), and the lower hook ball (4-31) is positioned between the connecting positions of the two triangular blocks (3-32).
5. A headrest adjustment device for a child seat according to claim 1, characterized in that: the gear lock rod (7) comprises a lock rod body (7-1), a lock rod lightening hole (7-2), a pin shaft hole (7-3) and a spring mounting end (7-4); the outer wall of the lock rod body (7-1) is uniformly provided with a plurality of lock rod lightening holes (7-2) along the axial direction and the radial direction, the inner side of the lock rod body (7-1) is respectively provided with a pin shaft hole (7-3) for a gear pin (5) to penetrate through, and the inner end of the lock rod body (7-1) is convexly provided with a spring mounting end (7-4) extending into the second reset spring (6).
6. A headrest adjustment device for a child seat according to claim 1, characterized in that: the headrest adjusting device is made of non-metal materials.
7. A control method for a headrest adjusting apparatus for a child seat, characterized in that: the headrest adjusting device is the headrest adjusting device of claim 4;
the control method comprises the following steps: 1) when the gear is unlocked, the headrest adjusting handle (3) is pulled upwards or downwards, the headrest adjusting handle (3) drives the two triangular blocks (3-32) which are arranged on the rear side surface of the lower end part (3-3) of the handle in a protruding mode backwards to synchronously move upwards or downwards correspondingly, under the driving of the triangular blocks (3-32), the distance between the lower hook balls (4-31) on the left side and the right side is increased and opened, so that the unlocking hook (4) rotates around the unlocking hook pin shaft (12) penetrating through the middle part of the unlocking hook, the upper hook body (4-1) rotates inwards and abuts against the gear pin (5) to press the gear pin (5) to move inwards, the gear pin (5) drives the gear locking rod (7) fixedly connected with the gear pin to move inwards, and therefore the gear locking rod (7) can be retracted inwards along the axial direction of the shaft tube (9) in the shaft tube (9) and simultaneously compress the second return spring (6) inside to retract inwards, the outer end of the gear lock rod (7) is pulled out of the corresponding gear hole (10-1) so as to unlock the current gear; at the moment, the selection of the corresponding gear can be realized by selecting the position of the headrest adjusting handle (3) in the gear hole (10-1) corresponding to the headrest adjusting gear seat (10);
2) when the gear is locked, the headrest adjusting handle (3) drives the gear lock rod (7) to move to the position of a gear hole (10-1) corresponding to the headrest adjusting gear seat (10), the headrest adjusting handle (3) drives two triangular blocks (3-32) which are arranged on the rear side surface of the lower end part (3-3) of the handle in a protruding mode backwards to return to the initial position under the reset action of the first reset spring (2), the lower hook balls (4-31) can move to the vertex connecting positions of the two triangular blocks (3-32), the distance between the lower hook balls on two sides is reduced and the lower hook balls on two sides are retracted, so that the unlocking hook (4) rotates around an unlocking hook pin shaft (12) penetrating through the middle part of the unlocking hook, the upper hook body (4-1) rotates outwards and is separated from the gear pin (5), the gear pin (5) drives the gear lock rod (7) fixedly connected with the gear lock rod to move outwards under the action of the second reset spring (6), therefore, the gear lock rod (7) extends out of the two sides of the axle tube (9) in the axle tube (9) along the axial direction of the axle tube (9), the outer end of the gear lock rod (7) extends out of the corresponding gear hole (10-1), the outer end of the gear lock rod (7) enters the corresponding gear hole (10-1) to lock the current gear, and the first reset spring (2) drives the headrest adjusting handle (3) to reset by means of restoring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841281.9A CN111923796B (en) | 2020-08-19 | 2020-08-19 | Headrest adjusting device for child seat and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841281.9A CN111923796B (en) | 2020-08-19 | 2020-08-19 | Headrest adjusting device for child seat and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111923796A CN111923796A (en) | 2020-11-13 |
| CN111923796B true CN111923796B (en) | 2022-04-26 |
Family
ID=73304370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010841281.9A Active CN111923796B (en) | 2020-08-19 | 2020-08-19 | Headrest adjusting device for child seat and control method thereof |
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| CN (1) | CN111923796B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050366A (en) * | 2018-08-24 | 2018-12-21 | 常州市博聪儿童用品股份有限公司 | A kind of child seat head rest regulating mechanism |
| CN115923613A (en) * | 2021-09-22 | 2023-04-07 | 明门瑞士股份有限公司 | Engagement mechanism and child safety seat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1139504A (en) * | 1965-03-05 | 1969-01-08 | Knud Lilleso | Head rest, especially for motor car seats |
| CN101670796B (en) * | 2008-09-10 | 2011-11-16 | 宝钜实业股份有限公司 | Child safety seat |
| CN207028931U (en) * | 2017-07-19 | 2018-02-23 | 程克勇 | Children's seat with headrest regulation |
| CN109747493A (en) * | 2019-03-07 | 2019-05-14 | 江苏欧思诺智能科技有限公司 | A kind of head rest height adjustment device of child safety seat |
| CN111452684A (en) * | 2020-05-29 | 2020-07-28 | 镇江艺高儿童用品有限公司 | Headrest adjusting device for child seat |
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