CN114889507B - Child safety seat - Google Patents
Child safety seat Download PDFInfo
- Publication number
- CN114889507B CN114889507B CN202210417619.7A CN202210417619A CN114889507B CN 114889507 B CN114889507 B CN 114889507B CN 202210417619 A CN202210417619 A CN 202210417619A CN 114889507 B CN114889507 B CN 114889507B
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- China
- Prior art keywords
- locking
- handle assembly
- push rod
- state
- carrying handle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B60N2/2842—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle
- B60N2/2845—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle having handles
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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
- B60N2/2842—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle
- B60N2/2848—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle being convertible or adaptable to a preambulator, e.g. a baby-carriage or a push-chair
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/20—Handle bars; Handles
Abstract
The invention discloses a child safety seat, which comprises a seat body and a carrying handle assembly rotatably arranged on the seat body, wherein the carrying handle assembly comprises a lower push rod and an upper push rod which are arranged in a sliding manner, the lower push rod is rotatably connected with the seat body, the carrying handle assembly has an extending state and a retracting state, the carrying handle assembly rotates relative to the seat body and has a pushing state and a safety seat gear, and when the carrying handle assembly is at the position of the safety seat gear, the carrying handle assembly is in the retracting state and cannot be converted to the extending state; when the carrying handle assembly is in the pushing gear position, the carrying handle assembly is in a contraction or extension state and can be switched between the contraction state and the extension state, and when the carrying handle assembly is in the extension state, the carrying handle assembly cannot be switched to the gear position of the safety seat. This children's safety seat mountable uses on car seat or shallow frame, and when using on the shallow frame, the carrying handle subassembly can be used to carry out children's shallow, and the length of carrying handle subassembly can be adjusted according to the needs that push away the passerby, can also prevent misuse simultaneously, and factor of safety is high.
Description
Technical Field
The invention relates to the technical field of children products, in particular to a child safety seat.
Background
Child safety seats are generally used when a child is small, in order to improve the safety of the child when the child is seated in a vehicle. A basket type child safety seat is generally used for a small infant, and generally includes a basket and a handle rotatably provided on the basket. The child safety seat is generally mounted on a car seat for use or is lifted independently for use, and a lifting handle of the child safety seat is mainly used for lifting the child safety seat for use.
In order to improve the utilization rate of the child safety seat, in the prior art, part of the child safety seat may also be installed on the stroller frame to be used as a seat pocket of a stroller, for example, chinese patent CN202122091650X discloses a lock release assembly of a child carrier and a car safety seat carrier.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a child safety seat which can be installed on a car seat for use and can also be installed on a stroller frame for use.
In order to achieve the purpose, the invention adopts the technical scheme that:
a child safety seat comprising a seat body and a handle assembly rotatably provided on the seat body, the handle assembly comprising a lower push rod and an upper push rod slidably provided on the lower push rod in a direction along a length of the lower push rod, the lower push rod being rotatably connected to the seat body via a first shaft, the upper push rod sliding relative to the lower push rod to cause the handle assembly to have an extended state and a retracted state, the child safety seat further comprising a first locking mechanism for locking a relative position of the upper push rod and the lower push rod to cause the handle assembly to be in the retracted state, the first locking mechanism comprising a first locking member rotatably provided on one of the two members via a second shaft and a first locking groove provided on the other member, the first locking member being inserted into the first locking groove when the first locking mechanism is in a locked state, and the first locking member being disengaged from the first locking groove when the first locking mechanism is in an unlocked state;
the first locking piece is provided with a first matching part, the carrying handle assembly at least has a pushing gear and a safety seat gear in a rotating mode relative to the seat body, when the carrying handle assembly is located at the safety seat gear position, the carrying handle assembly extends in the vertical direction or obliquely, the first matching part is far away from the seat body to enable the first locking mechanism to be in a locking state, and the carrying handle assembly is in a contracting state and cannot be converted to an extending state; when the carrying handle assembly is located at the pushing gear position, the carrying handle assembly extends obliquely, the first matching portion is abutted to the seat body to enable the first locking mechanism to be located at an unlocking state, the carrying handle assembly is located at a contraction state or an extension state and can be switched between the contraction state and the extension state, when the carrying handle assembly is located at the extension state, the carrying handle assembly cannot rotate relative to the seat body to be switched to the safety seat gear position, and an included angle between the carrying handle assembly and the horizontal plane under the safety seat gear position is different from an included angle between the carrying handle assembly and the horizontal plane under the pushing gear position.
Preferably, the safety seat positions comprise lifting positions, and when the handle assembly is in the lifting position, the handle assembly extends in the vertical direction.
Further, the safety seat gears further comprise an anti-tilting gear positioned between the lifting gear and the pushing gear, and the handle assembly extends obliquely when the handle assembly is in the anti-tilting gear position.
Preferably, the carrying handle assembly further has a folding gear position, an included angle between the carrying handle assembly and the horizontal plane in the folding gear position is smaller than an included angle between the carrying handle assembly and the horizontal plane in the pushing gear position, when the carrying handle assembly is in the folding gear position, the first matching portion is far away from the seat body, and the first locking mechanism is in a locking state so that the carrying handle assembly is in a retracted state and cannot be converted to an extended state.
Preferably, the child safety seat further includes a first elastic member for driving the first locking member to rotate so that the first locking member is inserted into the first locking groove, and two end portions of the first elastic member are respectively disposed on the first locking member and the lower push rod.
Preferably, the child safety seat further comprises a second locking mechanism for locking the relative position of the lower push rod and the seat body, the second locking mechanism comprises a second locking member slidably disposed between the lower push rod and the seat body along the axial extension direction of the first shaft, the second locking member is engaged with the lower push rod and the seat body respectively when the second locking mechanism is in a locked state, the second locking member is engaged with one of the lower push rod and the seat body and disengaged from the other when the second locking mechanism is in an unlocked state, and the second locking mechanism is in a locked state when the handle assembly is in both the push gear position and the safety seat gear position.
Further, the child safety seat further includes a third lock mechanism for locking a position of the second lock piece such that the second lock piece cannot slide when the second lock mechanism is in a locked state to unlock the second lock mechanism, the third lock mechanism including a third lock piece slidably provided on the second lock piece, the third lock piece being engaged with the lower push rod and/or the seat body when the third lock mechanism is in the locked state, and the third lock piece being disengaged from both the lower push rod and the seat body when the third lock mechanism is in an unlocked state.
Furthermore, a second locking groove is formed in the lower push rod, when the third locking mechanism is in a locked state, one end of the third locking piece is inserted into the second locking groove, and when the third locking mechanism is in an unlocked state, the third locking piece is disengaged from the second locking groove.
In a specific embodiment, a second matching portion is disposed on a lower portion of the upper push rod, and when the handle assembly is converted from the extended state to the retracted state, the second matching portion can be inserted into the second locking groove and is matched with the third locking element in an abutting manner, so that the third locking element is driven to slide relative to the second locking element, and the third locking mechanism is unlocked.
Furthermore, a slot extending along the sliding direction of the third locking piece is formed in the third locking piece, a column portion is arranged on the seat body, when the third locking mechanism is in a locked state, one end face of the third locking piece abuts against the column portion, when the third locking mechanism is in an unlocked state, the column portion corresponds to the slot, and the cross-sectional area of the column portion is smaller than that of the slot.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child safety seat can be mounted on a car seat for use and can also be mounted on a stroller frame for use. When the child safety seat needs to be installed on a car seat for use, the carrying handle assembly is located at the position of the safety seat gear, and the first locking mechanism is located in the locking state, so that the carrying handle assembly is kept in the contraction state and cannot be extended, and the child safety seat is convenient to carry. When the child safety seat needs to be installed on a stroller frame for use, the carrying handle assembly is located at the pushing gear position, and when the child stroller is used, the carrying handle assembly can be directly pushed, so that the child stroller is not required to be additionally provided with a push rod, and the structure of the child stroller is simple. And the length of the carrying handle component can be adjusted according to the needs of a pushing person, so that the comfort of the child stroller during pushing can be improved. This makes this children's safety seat have multiple service function, can improve children's safety seat's utilization ratio, avoids extravagant, can also prevent simultaneously that the consumer from using by mistake, has improved the factor of safety of product.
Drawings
FIG. 1 is a schematic side view of a child safety seat of this embodiment (with the carrying handle assembly in a first push gear position and the carrying handle assembly in an extended state);
FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged partial view of the area A of FIG. 2;
FIG. 4 is a schematic side view of the child safety seat of the present embodiment mounted on a stroller frame (with the handle assembly in a first push gear position and the handle assembly in an extended position);
FIG. 5 is a schematic side view of the child safety seat of the present embodiment (with the handle assembly in the first push gear position, the handle assembly in a retracted state, and the second locking mechanism in a locked state);
FIG. 6 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is an enlarged partial view of the area A of FIG. 6;
FIG. 8 is a cross-sectional view of the child safety seat of the present embodiment (with the handle assembly in the first push gear position, the handle assembly in a retracted state, and the second locking mechanism in an unlocked state);
FIG. 9 is an enlarged partial view of FIG. 8 at A;
FIG. 10 is a schematic side view of the child safety seat of the present embodiment mounted on a stroller frame (with the handle assembly in the second push gear position and the handle assembly in an extended position);
FIG. 11 is a schematic side view of the child safety seat of this embodiment (with the handle assembly in the first anti-tilt position and the handle assembly in a retracted position);
FIG. 12 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 11;
FIG. 13 is an enlarged partial view of FIG. 12 at A;
FIG. 14 is a schematic side view of the child safety seat of this embodiment (with the handle assembly in a lifting position and the handle assembly in a retracted position);
FIG. 15 is a schematic side view of the child safety seat of this embodiment (with the handle assembly in the second anti-tilt position and the handle assembly in a retracted state);
FIG. 16 is a side view of the child safety seat of this embodiment (with the handle assembly in the folded position and the handle assembly in the retracted position).
Wherein: 1. a seat body; 11. a seat portion; 12. a backrest part; 13. a pillar portion; 2. a carrying handle assembly; 21. a lower push rod; 211. a second locking groove; 22. an upper push rod; 221. a first locking groove; 222. a second fitting portion; 31. a first shaft; 32. a second shaft; 41. a first locking member; 411. a locking portion; 412. a first mating portion; 42. a first elastic member; 5. a second locking member; 6. an unlock button; 71. a third locking member; 711. grooving; 72. a third elastic member; 81. unlocking the knob; 82. a traction rope; 100. a cart frame.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 16, the child safety seat of the present invention includes a seat body 1 and a handle assembly 2 rotatably provided on the seat body 1.
The seat body 1 includes a seat portion 11 and a backrest portion 12, the seat portion 11 and the backrest portion 12 may be integrally formed, and the backrest portion 12 is located at the rear of the seat portion 11.
The handle assembly 2 includes a lower push rod 21 and an upper push rod 22. The upper push rod 22 is slidably provided on the lower push rod 21 in the longitudinal extending direction of the lower push rod 21, and the lower push rod 21 is rotatably connected to the seat body 1 by a first shaft 31.
In this embodiment, the lower push rod 21 has a lumen extending in the longitudinal direction thereof, and the upper push rod 22 is partially inserted in the lumen and slidably disposed in the longitudinal extending direction of the lumen.
The upper push rod 22 slides relative to the lower push rod 21 so that the handle assembly 2 has a contracted state and an extended state. When the handle assembly 2 is in a contracted state, most of the upper push rod 22 is retracted into the lumen of the lower push rod 21, and the length of the handle assembly 2 is the shortest. The handle assembly 2 can have a plurality of extended states, and when the handle assembly 2 is in the extended state, the length of the lumen of the upper push rod 22 extending out of the lower push rod 21 is increased and the length of the handle assembly 2 is increased relative to the contracted state. When the length of the upper push rod 22 extending out of the lower push rod 21 reaches the maximum, the length of the handle assembly 2 is the longest.
The handle assembly 2 rotates around the first shaft 31 relative to the seat body 1 and has at least a safe seat gear position and a pushing gear position.
When the handle assembly 2 is at the position of the safe seat stop, the handle assembly 2 extends along the vertical direction or extends obliquely, the handle assembly 2 is in the contraction state and can not be converted to the extending state. At this time, the carrying handle assembly 2 is mainly used for carrying a child safety seat, and the child safety seat can be mounted on a car seat and used for a child to take a car. Since the child safety seat is in the basket type, the child safety seat can be lifted and used independently, as shown in fig. 14.
When the carrying handle assembly 2 is in the pushing gear position, the carrying handle assembly 2 extends obliquely, a first included angle a is formed between the carrying handle assembly 2 and the horizontal plane, preferably, the first included angle a is 45 to 55 degrees, the carrying handle assembly 2 can be in a contracted state as shown in fig. 5, or in an extended state as shown in fig. 1, 4 and 10, and can be switched between the contracted state and the extended state. At this time, the child safety seat is mounted on the stroller frame 100 to be used as a seat pocket of a stroller, the handle assembly 2 is mainly used for pushing the stroller, and the length of the handle assembly 2 can be adjusted according to the requirements of a traveler.
The push gear positions include a first push gear position and a second push gear position, and the handle assembly 2 extends obliquely upward from rear to front when the handle assembly 2 is in the first push gear position, as shown in fig. 1, 4, 5, and 8. When the handle assembly 2 is in the second push range position, the handle assembly 2 extends obliquely upward from front to rear, as shown in fig. 10.
The safety seat gear comprises a lifting gear and an anti-inclination gear. When the handle assembly 2 is in the lifting position, the handle assembly 2 extends in a vertical direction or slightly extends in a backward inclined direction, and a second included angle B is formed between the handle assembly 2 and the horizontal plane, as shown in fig. 14.
The anti-tilt gear is located between the lifting gear and the pushing gear, and when the carrying handle assembly 2 is located at the anti-tilt gear, a third included angle C is formed between the carrying handle assembly 2 and the horizontal plane. The first included angle A is smaller than the third included angle C, and the third included angle C is smaller than the second included angle B.
The anti-tilt gears include a first anti-tilt gear and a second anti-tilt gear, and the first anti-tilt gear is located between the lifting gear and the first pushing gear, as shown in fig. 11. The second anti-tip gear position is located between the lifting gear position and the second pushing gear position, as shown in fig. 15. When the handle assembly 2 is in the anti-tilting gear position, the handle assembly 2 is fixed relative to the seat body 1 to prevent the child safety seat from tilting when the child safety seat is lifted.
Handle assembly 2 also has a fold gear position, and when handle assembly 2 is in the fold gear position, handle assembly 2 forms a fourth included angle D with the horizontal, fourth included angle D being less than first included angle a, and handle assembly 2 is located above and behind back rest portion 12, as shown in fig. 16. When the child safety seat is not in use, the carrying handle assembly 2 can be brought into the folded gear position.
When the handle assembly 2 is in the folded gear position, the handle assembly 2 is also in the contracted state and cannot be converted to the extended state.
The child safety seat further comprises a first locking mechanism that locks the relative positions of the upper push rod 22 and the lower push rod 21 and locks the carrying handle assembly 2 in the retracted state.
The first locking mechanism includes a first locking piece 41 rotatably provided on one of the two members of the upper push rod 22 and the lower push rod 21 through the second shaft 32 and a first locking groove 221 provided on the other of the two members of the upper push rod 22 and the lower push rod 21, a locking portion 411 is provided on the first locking piece 41, and the locking portion 411 is matched with the first locking groove 221. When the first locking mechanism is in the locked state, the locking portion 411 is inserted in the first locking groove 221, thereby locking the relative positions of the upper push rod 22 and the lower push rod 21 without relative sliding therebetween. When the first locking mechanism is in the unlocked state, the first locking member 41 is disengaged from the first locking groove 221.
In this embodiment, the first locking member 41 is rotatably provided on the lower push rod 21 via the second shaft 32, and is located outside the lumen of the lower push rod 21.
The first locking member 41 is further provided with a first engaging portion 412, and the first engaging portion 412 and the locking portion 411 are respectively disposed on opposite sides of the second shaft 32. In this embodiment, the locking portion 411 is located at an upper end portion of the first locking member 41, and the first fitting portion 412 is located at a lower end portion of the first locking member 41.
The child safety seat further includes a first elastic member 42, two end portions of the first elastic member 42 are respectively disposed on the lower push rod 21 and the first locking member 41, and the first elastic member 42 is located at the first matching portion 412 on the first locking member 41. The elastic force of the first elastic member 42 serves to urge the first locking member 41 to rotate relative to the lower push rod 21 in a direction in which the locking part 411 is inserted into the first locking groove 221.
When the handle assembly 2 is in the push gear position, the first engaging portion 412 is engaged against the seat body 1. Due to the abutting action of the seat body 1, the position of the first engaging portion 412 is close to the direction of the lower push rod 21, and the position of the locking portion 411 is far from the lower push rod 21, so that the locking portion 411 is disengaged from the first locking groove 221, even if the first locking mechanism is in the unlocked state, as shown in fig. 1 to 10. At this time, the first elastic member 42 is compressed to store energy.
When the carrying handle assembly 2 is rotated away from the push range position in the contracted state to be in the safe-seat range position and the folded range position, the first engaging portion 412 is disengaged from the seat body 1, and since no additional force is applied to the first engaging portion 412, the first locking member 41 is rotated relative to the lower push rod 21 in the direction in which the locking portion 411 is inserted into the first locking groove 221 by the elastic force of the first elastic member 42, so that the locking portion 411 is inserted into the first locking groove 221, the first locking mechanism is in the locked state, the upper push rod 22 cannot slide relative to the lower push rod 21, and the carrying handle assembly 2 is maintained in the contracted state.
The child safety seat further comprises a second locking mechanism for locking the relative positions of the push down rod 21 and the seat body 1 such that the handle assembly 2 cannot rotate relative to the seat body 1. When the carrying handle assembly 2 is at the first pushing gear position, the second pushing gear position, the carrying gear position, the first anti-tilting gear position, the second anti-tilting gear position and the folding gear position, the second locking mechanism is in a locking state.
The second locking mechanism includes a second locking piece 5, and the second locking piece 5 is fitted over the first shaft 31 and is slidably provided between the lower push rod 21 and the seat body 1 in the axial extending direction of the first shaft 31. When the second lock mechanism is in the locked state, the second locking piece 5 is engaged with the push-down lever 21 and the seat body 1, respectively. When the second locking mechanism is in the unlocked state, the second locking piece 5 engages with one of the push-down lever 21 and the seat body 1 and disengages from the other.
In this embodiment, the second locking member 5 is provided with locking teeth, and the lower push rod 21 and the seat body 1 are both provided with tooth grooves matched with the locking teeth. When the second lock mechanism is in the locked state, the lock teeth on the second locking member 5 are engaged with the push down lever 21 and the tooth grooves on the seat body 1, respectively. When the second locking mechanism is in the unlocked state, the locking teeth on the second locking member 5 are engaged with the notches on one of the two members of the seat body 1 and the push-down lever 21, and disengaged from the notches on the other member.
In the present embodiment, when the second lock mechanism is in the unlocked state, the engagement between the second locking piece 5 and the lower push rod 21 is released, and the second locking piece is engaged with the seat body 1.
The child safety seat further includes a second elastic member (not shown in the drawings), and both end portions of the second elastic member are provided on the second locking member 5 and the seat body 1, respectively. The elastic force of the second elastic member is used to urge the second locking member 5 to slide in a direction in which the second locking mechanism is in a locked state.
The child safety seat further comprises an unlocking button 6 for actuating the second locking mechanism to unlock, the unlocking button 6 is slidably arranged on the lower push rod 21 or the seat body 1, and the unlocking button 6 is matched with the second locking piece 5. In this embodiment, the unlock button 6 is slidably disposed on the lower push rod 21, and the unlock button 6 and the second locking member 5 are abutted and engaged with each other, and both slide in the same direction.
The child safety seat further includes a third locking mechanism that locks the position of the second locking piece 5 in a state where the second locking mechanism is locked, so that when the unlocking button 6 is pressed, the second locking piece 5 cannot slide in the axial direction of the first shaft 31, and the second locking mechanism is unlocked.
The third locking mechanism includes a third locking piece 71 slidably provided on the second locking piece 5, and when the third locking mechanism is in a locked state, the third locking piece 71 is engaged with the push-down lever 21 and/or the seat body 1, and when the unlock button 6 is pressed due to the blocking of the third locking piece 71, the second locking piece 5 cannot slide in the length extending direction of the first shaft 31. When the third locking mechanism is in the unlocked state, the third locking piece 71 is disengaged from both the lower push rod 21 and the seat body 1, and at this time, the unlocking button 6 can be pressed to slide the second locking piece 5 out of engagement with the lower push rod 21, even if the second locking mechanism is unlocked.
Specifically, the lower push rod 21 is provided with a second locking groove 211, and when the third locking mechanism is in the locked state, one end portion of the third locking member 71 is inserted into the second locking groove 211. When the third locking mechanism is in the unlocked state, the third locking piece 71 is disengaged from the second locking groove 211.
The third locking member 71 is provided with a groove 711 extending in the sliding direction thereof, and the seat body 1 is provided with the column portion 13. When the third lock mechanism is in the locked state, the position of column portion 13 is shifted from the position of groove 711, one end surface of third lock member 71 abuts against column portion 13, and the left and right movement of third lock member 71 is restricted by the block of column portion 13. When the third locking mechanism is in the unlocked state, the column portion 13 corresponds to the position of the slit 711, and the cross-sectional area of the column portion 13 is smaller than the cross-sectional area of the slit 711.
The child safety seat further includes a third elastic member 72, and both end portions of the third elastic member 72 are respectively provided on the third locking member 71 and the second locking member 5. The elastic force of the third elastic member 72 serves to urge the third locking member 71 to slide in a direction in which the third locking member 71 is inserted into the second locking groove 211.
When the handle assembly 2 is in the push-to-shift position and the handle assembly 2 is in the extended state, the third locking piece 71 causes one end of the third locking piece 71 to be inserted into the second locking groove 211 under the elastic force of the third elastic piece 72, and one end face of the third locking piece 71 abuts against the column portion 13 of the seat body 1, that is, the third locking mechanism is in the locked state. At this time, the second locking member 5 cannot be slid along the first shaft 31 by pressing the unlocking button 6, that is, the second locking mechanism is kept in the locked state, and the handle assembly 2 cannot be rotated relative to the seat body 1 to adjust the shift position.
The lower end of the upper push rod 22 is provided with a second engaging portion 222 matching with the second locking groove 211, and when the handle assembly 2 is in the extended state, the second engaging portion 222 is far away from the second locking groove 211. When the upper push rod 22 slides downward relative to the lower push rod 21 to switch the handle assembly 2 from the extended state to the retracted state, the second engaging portion 222 is gradually inserted into the second locking groove 211 and abuts against the third locking member 71. When the upper push rod 22 continues to slide downward relative to the lower push rod 21, the third locking member 71 is driven to slide downward relative to the second locking member 5 until the handle assembly 2 is in the retracted state. At this time, the third locking piece 71 is disengaged from the second locking groove 211, and the column portion 13 of the seat body 1 corresponds to the position of the groove 711 of the third locking piece 71, that is, the third locking mechanism is in the unlocked state. After the third locking member 71 is separated from the blocking of the lower push rod 21 and the column part 13, the unlocking button 6 is pressed to drive the second locking member 5 to slide along the axial direction of the first shaft 31, so as to drive the third locking member 71 to synchronously slide along the same direction, the column part 13 on the seat body 1 gradually enters the groove 711 of the third locking member 71 until the second locking member 5 is separated from the matching with the lower push rod 21, namely the second locking mechanism is unlocked, and the carrying handle assembly 2 can rotate relative to the seat body 1 to adjust the gear position.
When carrying handle subassembly 2 and being in to carry gear position, first anti-tilt gear position, the anti-tilt gear position of second and folding gear position, because carrying handle subassembly 2 all is in the contraction status for third locking mechanical system all is in the unblock state, presses unlock button 6 this moment and can order about the unblock of second locking mechanical system, makes carrying handle subassembly 2 can freely change between each gear position.
The child safety seat further includes a fourth locking mechanism provided between the upper push rod 21 and the lower push rod 22, and the relative positions of the upper push rod 21 and the lower push rod 22 are locked by the fourth locking mechanism when the handle assembly 2 is in the extended state. The fourth locking mechanism may be of a prior art construction.
The child safety seat further comprises an unlocking mechanism which is arranged on the upper push rod 21 and used for driving the fourth locking mechanism to unlock, the unlocking mechanism comprises an unlocking knob 81 which is movably arranged on the upper push rod 21 and a traction cable 82, one end of the traction cable 82 is connected to the unlocking knob 81, the other end of the traction cable 82 is directly or indirectly connected to the fourth locking mechanism, and the structure in the prior art can also be adopted in a mode of driving the fourth locking mechanism to unlock by pulling the traction cable 82.
When the carrying handle assembly 2 is at the pushing gear position and the carrying handle assembly 2 is in the extending state, the fourth locking mechanism is in the locking state, the first locking mechanism is in the unlocking state, and after the fourth locking mechanism is unlocked by operating the unlocking mechanism, the upper push rod 22 can slide up and down relative to the lower push rod 21, so that the length of the carrying handle assembly 2 is adjusted. At this time, due to the action of the third locking mechanism, the second locking mechanism is kept in a locked state, and the handle assembly 2 cannot adjust the gear position, as shown in fig. 1 to 4 and 10.
When the handle assembly 2 is in the push gear position, the upper push rod 22 slides downwards relative to the lower push rod 21 to enable the handle assembly 2 to be in the contraction state, and the fourth locking mechanism can be in the locking state or in the unlocking state. At this time, the third locking mechanism is in an unlocked state, and the second locking mechanism is in a locked state, as shown in fig. 5 to 7.
When the unlocking button 6 is pressed to slide the unlocking button 6 relative to the lower push rod 21, the second locking member 5 is driven to slide in the same direction until the second locking member 5 is disengaged from the lower push rod 21, and the second locking mechanism is in an unlocked state, as shown in fig. 8 and 9.
When the handle assembly 2 rotates relative to the seat body 1, the first engaging portion 412 on the first locking member 41 gradually disengages from the seat body 1, and when the handle assembly 2 rotates to the first anti-tilting position, the lifting position, the second anti-tilting position, and the folding position, the first engaging portion 412 disengages from the seat body 1, the first locking member 41 rotates under the elastic force of the first elastic member 42 to insert the locking portion 411 into the first locking groove 211, that is, the first locking mechanism is in the locked state, so that the upper push rod 22 cannot slide relative to the lower push rod 21, so that the handle assembly 2 is kept in the retracted state, and the third locking mechanism is in the unlocked state, at this time, the unlocking button 6 is pressed to unlock the second locking mechanism, so that the handle assembly 2 can be freely switched between the positions, as shown in fig. 11 to fig. 16.
The above definitions of directions are defined according to directions in the drawings of the specification, and as shown in fig. 1, the left side is front, the right side is rear, the upper side is upper, the lower side is lower, and a direction perpendicular to the paper in fig. 1 is a left-right direction in the present embodiment.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A child safety seat comprising a seat body and a carrying handle assembly rotatably disposed on the seat body, characterized in that: the carrying handle assembly comprises a lower push rod and an upper push rod which is arranged on the lower push rod in a sliding mode along the length extension direction of the lower push rod, the lower push rod is rotatably connected with the seat body through a first shaft, the upper push rod slides relative to the lower push rod to enable the carrying handle assembly to have an extending state and a retracting state, the child safety seat further comprises a first locking mechanism used for locking the relative positions of the upper push rod and the lower push rod to enable the carrying handle assembly to be in the retracting state, the first locking mechanism comprises a first locking piece and a first locking groove, the first locking piece is rotatably arranged on one of the upper push rod and the lower push rod through a second shaft, the first locking piece is arranged on the other of the upper push rod and the lower push rod, the first locking piece is inserted into the first locking groove when the first locking mechanism is in the locking state, and the first locking piece is pulled out of the first locking groove when the first locking mechanism is in the unlocking state;
the first locking piece is provided with a first matching part, the carrying handle assembly at least has a pushing gear and a safety seat gear when rotating relative to the seat body, when the carrying handle assembly is located at the safety seat gear position, the carrying handle assembly extends along the vertical direction or obliquely, the first matching part is far away from the seat body to enable the first locking mechanism to be in a locking state, and the carrying handle assembly is in a contraction state and cannot be converted to an extension state; when the carrying handle assembly is located at the pushing gear position, the carrying handle assembly extends obliquely, the first matching portion is abutted to the seat body to enable the first locking mechanism to be located at an unlocking state, the carrying handle assembly is located at a contraction state or an extension state and can be switched between the contraction state and the extension state, when the carrying handle assembly is located at the extension state, the carrying handle assembly cannot rotate relative to the seat body to be switched to the safety seat gear position, and an included angle between the carrying handle assembly and the horizontal plane under the safety seat gear position is different from an included angle between the carrying handle assembly and the horizontal plane under the pushing gear position.
2. The child safety seat according to claim 1, wherein: the safety seat gear comprises a lifting gear, and when the handle assembly is located at the lifting gear, the handle assembly extends in the vertical direction.
3. The child safety seat according to claim 2, wherein: the safety seat gear further comprises an anti-tilting gear positioned between the lifting gear and the pushing gear, and when the handle assembly is positioned at the anti-tilting gear, the handle assembly extends obliquely.
4. The child safety seat according to claim 1, wherein: the carrying handle assembly is further provided with a folding gear, an included angle between the carrying handle assembly and a horizontal plane under the folding gear position is smaller than an included angle between the carrying handle assembly and the horizontal plane under the pushing gear position, when the carrying handle assembly is under the folding gear position, the first matching portion is far away from the seat body, and the first locking mechanism is in a locking state to enable the carrying handle assembly to be in a contraction state and cannot be converted to an extension state.
5. The child safety seat according to claim 1, wherein: the child safety seat further comprises a first elastic piece for driving the first locking piece to rotate so that the first locking piece is inserted into the first locking groove, and two end parts of the first elastic piece are respectively arranged on the first locking piece and the lower push rod.
6. The child safety seat according to claim 1, wherein: the child safety seat further comprises a second locking mechanism used for locking the relative position of the lower push rod and the seat body, the second locking mechanism comprises a second locking piece which is arranged between the lower push rod and the seat body in a sliding mode along the axial extending direction of the first shaft, when the second locking mechanism is in a locking state, the second locking piece is matched with the lower push rod and the seat body respectively, when the second locking mechanism is in an unlocking state, the second locking piece is matched with one of the lower push rod and the seat body and is disengaged from the other of the lower push rod and the seat body, and when the carrying handle assembly is in a pushing gear position and a safety seat gear position, the second locking mechanism is in a locking state.
7. The child safety seat according to claim 6, wherein: the child safety seat further comprises a third locking mechanism which is used for locking the position of the second locking piece when the second locking mechanism is in a locking state so that the second locking piece cannot slide to unlock the second locking mechanism, the third locking mechanism comprises a third locking piece which is slidably arranged on the second locking piece, when the third locking mechanism is in the locking state, the third locking piece is matched with the lower push rod and/or the seat body, and when the third locking mechanism is in an unlocking state, the third locking piece is disengaged from the lower push rod and the seat body.
8. The child safety seat according to claim 7, wherein: the lower push rod is provided with a second locking groove, when the third locking mechanism is in a locking state, one end part of the third locking piece is inserted into the second locking groove, and when the third locking mechanism is in an unlocking state, the third locking piece is separated from the second locking groove.
9. The child safety seat according to claim 8, wherein: the lower part of the upper push rod is provided with a second matching part, when the handle assembly is converted from the extending state to the contracting state, the second matching part can be inserted into the second locking groove and is abutted against and matched with the third locking piece so as to drive the third locking piece to slide relative to the second locking piece to unlock the third locking mechanism.
10. The child safety seat according to claim 7, wherein: the seat is characterized in that a groove extending along the sliding direction of the third locking piece is formed in the third locking piece, a column part is arranged on the seat body, when the third locking mechanism is in a locking state, one end face of the third locking piece is abutted against the column part, when the third locking mechanism is in an unlocking state, the column part corresponds to the groove, and the cross-sectional area of the column part is smaller than that of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210417619.7A CN114889507B (en) | 2022-04-20 | 2022-04-20 | Child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210417619.7A CN114889507B (en) | 2022-04-20 | 2022-04-20 | Child safety seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114889507A CN114889507A (en) | 2022-08-12 |
| CN114889507B true CN114889507B (en) | 2023-03-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210417619.7A Active CN114889507B (en) | 2022-04-20 | 2022-04-20 | Child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114889507B (en) |
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| Publication number | Publication date |
|---|---|
| CN114889507A (en) | 2022-08-12 |
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