CN114701411B - Protective belt connecting hook piece for child seat - Google Patents
Protective belt connecting hook piece for child seat Download PDFInfo
- Publication number
- CN114701411B CN114701411B CN202210263195.3A CN202210263195A CN114701411B CN 114701411 B CN114701411 B CN 114701411B CN 202210263195 A CN202210263195 A CN 202210263195A CN 114701411 B CN114701411 B CN 114701411B
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- Prior art keywords
- arc
- shaped lock
- lock tongue
- hook
- gear
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- 230000001681 protective effect Effects 0.000 title claims abstract description 28
- 210000002105 tongue Anatomy 0.000 claims abstract description 134
- 238000000034 method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- B60N2/2803—Adaptations for seat belts
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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
- B60N2/2803—Adaptations for seat belts
- B60N2/2812—Adaptations for seat belts for securing the child to the child seat
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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
- B60N2/2803—Adaptations for seat belts
- B60N2002/2815—Adaptations for seat belts with additional belt accessories, e.g. a belt tension detector
Abstract
The invention discloses a protective belt connecting hook for a child seat, which relates to the technical field of child seats and comprises three hook units and a driving mechanism, wherein each hook unit comprises a shell, a first arc-shaped lock tongue and a second arc-shaped lock tongue, the first arc-shaped lock tongue and the second arc-shaped lock tongue are coaxially and movably arranged in the shell on the same surface, a group of gear teeth are respectively arranged on opposite arc surfaces between the first arc-shaped lock tongue and the second arc-shaped lock tongue, a gear is rotationally arranged on the shell, and the gear is meshed and matched with the first arc-shaped lock tongue and the second arc-shaped lock tongue through two groups of gear teeth; when the lock is locked, the three hook units are pre-connected together, the three first arc-shaped lock tongues form a complete first circular ring, and the three second arc-shaped lock tongues form a complete second circular ring; the driving mechanism is used for driving the gears of any hook units to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate along opposite directions by a preset angle, and therefore the three hook units are interlocked pairwise.
Description
Technical Field
The invention relates to the technical field of child seats, in particular to a protective belt connecting hook piece for a child seat.
Background
The child safety seat is arranged on the passenger car and fixed with the rear seat, and the child safety seat protects the child safety in the running process of the car. The protective belt of the child safety seat is detachably connected together through a connecting hook piece in front of the abdomen of the child, the connecting member is commonly provided with a three-point connecting hook piece and a five-point connecting hook piece, the three-point connecting hook piece comprises three hook piece units, the first hook piece unit is connected with the protective belt stretched from the lower direction of the child, and the second hook piece unit and the third hook piece unit are respectively connected with the protective belt stretched from the double shoulder direction of the child.
The utility model provides a chinese patent of publication number CN212243264U, name is safety catch for children's car safety seat, it includes fixed establishment, coupling mechanism, release mechanism and stop gear, all movable grafting in fixed establishment top both sides has coupling mechanism, and coupling mechanism comprises two coupling catches, no. two spread grooves, connecting seat, spacing groove and fixed knot, fixed release mechanism that is provided with of fixed establishment inner chamber, fixed establishment both sides wall surface all activity is provided with stop gear. The connecting seats at one ends of the two connecting buckles are respectively inserted into the clamping grooves, and the connecting seats are fixed through the lock tongue, so that a three-point safety belt can be formed, and the safety of children during operation is effectively improved.
In the prior art including the above patent, the connection mode of the three-point connection hook is generally that the hook unit two and the hook unit three (connection buckles) are respectively inserted into the hook unit one (fixing seat) so that the hook unit two is in snap connection with the hook unit one, and the hook unit three is in snap connection with the hook unit one, but the hook unit two and the hook unit three are not directly connected, once an automobile has an impact accident, the connection hook is relatively easy to be disconnected by a strong force, and as long as any one of the hook unit two and the hook unit three is disconnected with the hook unit, the protection belt is invalid, so that a child is separated from the seat and out of control, and serious consequences are caused.
Disclosure of Invention
The object of the present invention is to provide a protective belt connecting hook for child seats, which solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: the protective belt connecting hook for the child seat comprises three hook units and a driving mechanism arranged on any hook unit, wherein each hook unit comprises a shell, a first arc-shaped lock tongue and a second arc-shaped lock tongue, the first arc-shaped lock tongue and the second arc-shaped lock tongue are coaxially and movably arranged in the shell in the same plane, a group of gear teeth are respectively arranged on opposite arc-shaped surfaces between the first arc-shaped lock tongue and the second arc-shaped lock tongue, a gear is rotatably arranged on the shell, and the gear is meshed and matched with the first arc-shaped lock tongue and the second arc-shaped lock tongue through two groups of gear teeth; when the lock is locked, the three hook units are pre-connected together, the three first arc-shaped lock tongues form a complete first circular ring, and the three second arc-shaped lock tongues form a complete second circular ring; the driving mechanism is used for driving the gears of any hook units to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate along opposite directions by a preset angle, and therefore the three hook units are interlocked pairwise.
Further, a first arc groove and a second arc groove which are coaxial are formed in the shell, the first arc lock tongue is arranged in the first arc groove in a sliding mode, and the second arc lock tongue is arranged in the second arc groove in a sliding mode.
Further, the pre-connection mode is clamping connection and/or magnetic connection.
Further, the three hook units are each provided with a coupling groove for coupling the protective tape.
Further, the preset angle is 10-30 degrees.
Further, the driving mechanism comprises a first elastic unit, and the process of recovering deformation of the first elastic unit drives the corresponding first arc-shaped lock tongue and second arc-shaped lock tongue to reversely rotate from an unlocking station contained in the shell to a locking station protruding out of the shell by a preset angle.
Further, the first elastic unit comprises a wire spool, a rope and a nest coil spring, the wire spool is rotatably arranged in the shell through a rotating shaft, one end of the rope is wound and connected on the wire spool, the other end of the rope is fixedly connected on the rotating shaft of the gear, the elastic force of the nest coil spring drives the wire spool to wind the rope, and the rope is unwound on the rotating shaft to enable the gear to rotate.
Further, the first elastic unit comprises a cam groove, a sliding rod and a pressure spring, wherein the cam groove is fixedly connected to a rotating shaft of the gear, the distance from the cam groove to the rotating shaft is sequentially reduced from the middle to the two ends, the sliding rod is arranged in the shell in a sliding mode, one end of the sliding rod is connected with the cam groove in a sliding mode, the elastic force of the pressure spring enables the sliding rod to slide along the direction away from the rotating shaft, and the sliding rod slides towards the middle of the cam groove to enable the gear to rotate.
Further, the driving mechanism further comprises a rotating piece, wherein the rotating piece is coaxially and fixedly connected to the rotating shaft of the gear and used for driving the first arc-shaped lock tongue and the second arc-shaped lock tongue to move from the locking station to the unlocking station.
Further, limiting grooves are formed in two ends of one diameter of the rotating piece, a sliding pin is arranged on the shell in a sliding mode, a second elastic unit is arranged between the shell and the sliding pin, and when the first arc-shaped lock tongue and the second arc-shaped lock tongue are located at the unlocking station, the elastic force of the second elastic unit drives the sliding pin to slide into the limiting grooves.
In the above technical solution, when the protective belt connection hook for the child seat is locked, the first arc-shaped lock tongue and the second arc-shaped lock tongue of the three hook units are all contained in respective shells, the three hook units are pre-connected together, the three first arc-shaped lock tongues form a complete first circular ring, the three second arc-shaped lock tongues form a complete second circular ring, then the driving mechanism drives the gear of any hook unit (any one or more hook units in the three hook units) to rotate in any direction (clockwise rotation direction or anticlockwise rotation direction of the gear), and the gear is meshed and matched with the first arc-shaped lock tongue and the second arc-shaped lock tongue simultaneously, so that the first circular ring and the second circular ring rotate by a preset angle in opposite directions, and the three hook units are interlocked with each other, and are still connected with the other hook unit under the condition that the connection between any two hook units is broken strongly, so that the three hook units are still connected together; and the two hook units are in an interlocking state, namely, the two hook units are locked with each other by an arc-shaped lock tongue (a first arc-shaped lock tongue or a second arc-shaped lock tongue), so that the connection strength of the protective belt connection hook is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1-2 are schematic structural diagrams of three hook units according to an embodiment of the present invention when they are separated;
fig. 3 to 4 are schematic views of an unlocking structure according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an embodiment of the present invention in an unlocked configuration;
fig. 6 is a schematic structural diagram of a hook unit with a driving mechanism according to an embodiment of the present invention when the hook unit is unlocked;
fig. 7 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;
FIGS. 8-9 are schematic diagrams illustrating the locking structure according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of a lock-in configuration provided by an embodiment of the present invention;
FIG. 11 is a cross-sectional view of another embodiment of the present invention in a locked configuration;
fig. 12 is a schematic structural diagram of a hook unit with a driving mechanism according to an embodiment of the present invention when the hook unit is locked;
fig. 13 is a schematic structural diagram of a first elastic unit according to an embodiment of the present invention;
FIG. 14 is a cross-sectional view of a first resilient unit according to an embodiment of the present invention;
FIG. 15 is a schematic structural view of a first elastic unit according to another embodiment of the present invention;
fig. 16 is a structural cross-sectional view of a first elastic unit according to another embodiment of the present invention.
Reference numerals illustrate:
1. a hook unit; 1.1, a shell; 1.2, a first arc-shaped lock tongue; 1.3, a second arc-shaped lock tongue; 1.4, gears; 1.41, a rotating shaft; 1.5, a connecting groove; 1.6, a clamping groove; 1.7, a clamping bulge; 2. a driving mechanism; 2.1, a first elastic unit; 2.11, wire spool; 2.111, a rotating shaft; 2.12, ropes; 2.13, a nest coil spring; 2.14, cam slot; 2.15, a sliding rod; 2.16, a compression spring; 2.2, a rotating piece; 2.21, a limit groove; 2.22, a rotating handle; 2.3, sliding pins; 2.31, a poking handle; 2.4, a second elastic unit.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-16, the protective belt connecting hook for a child seat provided by the embodiment of the invention comprises three hook units 1 and a driving mechanism 2 arranged on any hook unit 1, each hook unit 1 comprises a shell 1.1, a first arc-shaped lock tongue 1.2 and a second arc-shaped lock tongue 1.3, the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 are coaxially and movably arranged in the shell 1.1 in the same plane, a group of gear teeth are respectively arranged on opposite arc-shaped surfaces between the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3, a gear 1.4 is rotatably arranged on the shell 1.1, the gear 1.4 is meshed and matched with the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 through two groups of gear teeth simultaneously, and the gear 1.4 can drive the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to rotate in opposite directions no matter clockwise or anticlockwise; when in locking, the three hook units 1 are pre-connected together, the three first arc-shaped lock tongues 1.2 form a complete first circular ring, and the three second arc-shaped lock tongues 1.3 form a complete second circular ring; the driving mechanism 2 is used for driving the gears 1.4 of any hook units 1 to rotate in any direction so as to enable the first circular ring and the second circular ring to rotate in opposite directions by a preset angle, and therefore the three hook units 1 are interlocked pairwise.
Specifically, the three hook units 1 are each provided with a coupling groove 1.5 for coupling the protective tape. The opposite arc surfaces between the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 refer to the arc surfaces facing each other, for example, in this embodiment, the inner diameter of the first arc-shaped lock tongue 1.2 in the same hook unit 1 is smaller than the inner diameter of the second arc-shaped lock tongue 1.3, and then the opposite arc surfaces between the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 are the outer peripheral side surface of the first arc-shaped lock tongue 1.2 and the inner peripheral side surface of the second arc-shaped lock tongue 1.3. The shell 1.1 is provided with a first arc groove and a second arc groove which are coaxial, two ends of the first arc groove and two ends of the second arc groove penetrate through two sides which are 120 degrees mutually and correspond to the shell 1.1, namely, central angles of the first arc groove and the second arc groove on the shell 1.1 of each hook unit 1 are 120 degrees, namely, central angles of the first arc lock tongue 1.2 and the second arc lock tongue 1.3 on the shell 1.1 of each hook unit 1 are 120 degrees, the first arc lock tongue 1.2 is arranged in the first arc groove in a sliding mode, and the second arc lock tongue 1.3 is arranged in the second arc groove in a sliding mode, so that the first arc lock tongue 1.2 and the second arc lock tongue 1.3 are coaxially arranged in the shell 1.1 in the same plane. The three hook units 1 are connected together in advance in a clamping and/or magnetic connection way, preferably, clamping grooves 1.6 are respectively formed in two side faces of one hook unit 1, which are 120 degrees away from each other, and clamping protrusions 1.7 which are clamped with the clamping grooves 1.6 are respectively formed in the other two hook units 1, so that the three hook units 1 are connected in advance; or the two sides of each hook unit 1 forming 120 degrees are respectively provided with a magnetic attraction part, so that the three hook units 1 are pre-connected together. The first ring and the second ring are rotated in opposite directions by a predetermined angle, preferably 10-30 degrees.
In the above technical scheme, according to the protective belt connecting hook for the child seat, when the child seat is locked, as shown in fig. 1-2, the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 of the three hook units 1 are all contained in the respective shells 1.1, namely, at the moment, the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 are all in unlocking stations, the three hook units 1 are pre-connected together, as shown in fig. 3-5, the three first arc-shaped lock tongues 1.2 form a complete first circular ring, the three second arc-shaped lock tongues 1.3 form a complete second circular ring, then the driving mechanism 2 drives the gears 1.4 of any hook unit 1 (any one or a plurality of hook units 1 in the three hook units 1) to rotate in any direction (the clockwise rotation direction or the anticlockwise rotation direction of the gears 1.4), the gears 1.4 are simultaneously engaged with the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3, the first circular ring and the second circular ring are correspondingly locked with the two hook units 1.1 in the corresponding to each other in the two directions, and the two hook units 1 are interlocked between the two hook units 1.1 and the two hook units 1 are mutually locked. For example, as shown in fig. 10, the driving mechanism 2 drives the gear 1.4 to rotate anticlockwise, the gear 1.4 drives one of the first arc-shaped lock tongues 1.2 to rotate clockwise, then the gear 1.4 simultaneously makes the second arc-shaped lock tongue 1.3 rotate anticlockwise, the first arc-shaped lock tongue 1.2 is inserted into a first arc-shaped groove of a component unit in the clockwise direction of the gear, and pushes the first arc-shaped lock tongue 1.2 in the first arc-shaped groove to rotate, so that the first ring rotates clockwise, and the second ring rotates anticlockwise, so that any two hook-shaped units 1 are locked with each other, that is, the two hook-shaped lock tongues 1 are both provided with one arc-shaped lock tongue (the first arc-shaped lock tongue 1.2 or the second arc-shaped lock tongue 1.3) inserted into an arc-shaped groove (the first arc-shaped groove or the second arc-shaped groove) of the other, for example, the first arc-shaped lock tongue 1.2 of the former in the two hook-shaped units 1 is inserted into the first arc-shaped groove of the latter, and the second arc-shaped lock tongue 1.3 of the latter is inserted into the second arc-shaped groove of the former; in addition, any two hook units 1 are locked, and under the condition that the connection between any two hook units 1 is broken by strong force, the two hook units 1 are still connected with the other hook unit 1, so that the three hook units 1 are still connected together, and the connection strength of the protective belt connecting hook is greatly improved. For example, as shown in fig. 11, the driving mechanism 2 drives the gear 1.4 to rotate clockwise, the gear 1.4 drives one of the first arc-shaped lock bolts 1.2 to rotate anticlockwise, and then the gear 1.4 simultaneously drives the second arc-shaped lock bolt 1.3 to rotate clockwise, so that the first circular ring rotates clockwise, and the second circular ring also rotates anticlockwise, so that the three hook units 1 are interlocked two by two.
Another effect of the present embodiment is that when the locking operation or the unlocking operation is performed, the first ring and the second ring rotate in opposite directions through the dual transmission channels, that is, the first ring and the second ring can not only receive the driving of the gear 1.4 driven by the driving mechanism 2 at the same time, but also receive the driving of the gear 1.4 driven by the driving mechanism 2 by only one of the first ring and the second ring to realize the simultaneous reverse rotation of the first ring and the second ring, because the other gears 1.4 not directly driven by the driving mechanism 2 perform the interlocking transmission between the first ring and the second ring, if the protective belt connection hook structure for the child seat is damaged, the first ring and the second ring can still rotate reversely to unlock or lock under the condition that the gear 1.4 driven by the driving mechanism 2 and the corresponding first arc locking tongue 1.2 and the second arc locking tongue 1.3 are disengaged from the meshing transmission.
In another embodiment of the present invention, the driving mechanism 2 includes a first elastic unit 2.1, and the process of recovering the deformation of the first elastic unit 2.1 drives the corresponding first arc-shaped lock tongue 1.2 and second arc-shaped lock tongue 1.3 to rotate reversely from an unlocking station accommodated in the housing 1.1 by a preset angle to a locking station protruding out of the housing 1.1. The unlocking stations of the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 on the same hook unit 1 are unique, and in the unlocking stations, the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 are both contained in the corresponding shell 1.1; the same hook unit 1 is provided with two locking stations of a first arc-shaped lock tongue 1.2 and a second arc-shaped lock tongue 1.3, the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 rotate reversely at a preset angle at an unlocking station and are protruded out of a corresponding shell 1.1, wherein the first arc-shaped lock tongue 1.2 rotates clockwise to the locking station by a preset angle, the second arc-shaped lock tongue 1.3 rotates anticlockwise to the locking station, or the first arc-shaped lock tongue 1.2 rotates anticlockwise to the locking station by a preset angle, and the second arc-shaped lock tongue 1.3 rotates clockwise to the locking station by a preset angle.
As a preferred technical solution of this embodiment, referring to fig. 13-14, the first elastic unit 2.1 includes a wire spool 2.11, a rope 2.12, and a socket coil spring 2.13, where the wire spool 2.11 is rotatably disposed in the housing 1.1 through a rotating shaft 2.111, one end of the rope 2.12 is wound and connected on the wire spool 2.11, the other end is fixedly connected on the rotating shaft 1.41 of the gear 1.4, the elastic force of the socket coil spring 2.13 drives the wire spool 2.11 to wind the rope 2.12, and the rope 2.12 is unwound on the rotating shaft 1.41 to rotate the gear 1.4. During unlocking operation, the driving gear 1.4 rotates along any time needle direction, so that the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 move to an unlocking station, meanwhile, the rotating shaft 1.41 of the gear 1.4 winds the rope 2.12, the wire spool 2.11 rotates to release the rope 2.12, and the elastic deformation of the nest coil spring 2.13 is aggravated by the rotation of the wire spool 2.11; during locking operation, the nest winding spring 2.13 recovers elastic deformation, so that the wire spool 2.11 rotates the winding rope 2.12, the rotating shaft 1.41 rotates the unwinding rope 2.12, the gear 1.4 is reversed, and the gear 1.4 drives the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to move to the locking station.
As another preferable technical solution of the present embodiment, referring to fig. 15 to 16, the first elastic unit 2.1 includes a cam groove 2.14, a sliding rod 2.15 and a compression spring 2.16, the cam groove 2.14 is fixedly connected to the rotating shaft 1.41 of the gear 1.4, that is, the cam groove 2.14 is opened on the cam, the cam is fixedly connected to the rotating shaft 1.41, the distance from the cam groove 2.14 to the rotating shaft 1.41 decreases sequentially from the middle to two ends, the sliding rod 2.15 is slidably disposed in the housing 1.1, one end of the sliding rod 2.15 is slidably connected with the cam groove 2.14, the elastic force of the compression spring 2.16 slides the sliding rod 2.15 in a direction away from the rotating shaft 1.41, and the sliding rod 2.15 slides toward the middle of the cam groove 2.14 to rotate the gear 1.4. During locking, the end part of the sliding rod 2.15 is slidingly connected in the middle of the cam groove 2.14, during unlocking operation, the driving gear 1.4 rotates along any needle direction to enable the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to move to the unlocking station, meanwhile, the gear 1.4 drives the cam groove 2.14 to synchronously rotate, the cam groove 2.14 slides relative to the end part of the sliding rod 2.15, the end part of the sliding rod 2.15 slides from the middle of the cam groove 2.14 to the edge of the cam groove 2.14, the sliding rod 2.15 slides relative to the shell 1.1 to be close to the rotating shaft 1.41, and the sliding of the sliding rod 2.15 relative to the shell 1.1 enables the pressure spring 2.16 to be further compressed; during locking operation, the compression spring 2.16 recovers elastic deformation, the sliding rod 2.15 slides away from the rotating shaft 1.41 relative to the shell 1.1, the end part of the sliding rod 2.15 slides relative to the cam groove 2.14, the edge of the cam groove 2.14 slides to the middle of the cam groove 2.14, the cam groove 2.14 and the gear 1.4 are reversed, and the gear 1.4 moves the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to a locking station.
In still another embodiment of the present invention, the driving mechanism 2 further includes a rotating member 2.2, where the rotating member 2.2 is coaxially and fixedly connected to the rotating shaft 1.41 of the gear 1.4, and is used to drive the gear 1.4 to rotate so as to move the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 from the locking station to the unlocking station.
As a preferred technical scheme of the embodiment, limiting grooves 2.21 are formed in two ends of one diameter of the rotating piece 2.2, a sliding pin 2.3 is arranged on the shell 1.1 in a sliding mode, a second elastic unit 2.4 is arranged between the shell 1.1 and the sliding pin 2.3, when the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 are located at an unlocking station, the elastic force of the second elastic unit 2.4 drives the sliding pin 2.3 to slide into the limiting grooves 2.21, further, the second elastic unit 2.4 is preferably a spring, a rotating handle 2.22 is arranged on the rotating piece 2.2, and a shifting handle 2.31 is arranged on the sliding pin 2.3. When the lock is in an unlocking state, the elastic force of the second elastic unit 2.4 drives the sliding pin 2.3 to slide into the limiting groove 2.21, as shown in fig. 1-7, the elastic force of the first elastic unit 2.1 is in a force accumulation state, when the lock is operated, the push rod is pushed against the pressure of the second elastic unit 2.4 to enable the sliding pin 2.3 to slide out of the limiting groove 2.21, after the rotating piece 2.2 loses the limit of the sliding pin 2.3, the elastic force of the first elastic unit 2.1 is released, so that the corresponding gear 1.4 and the rotating piece 2.2 rotate, and the gear 1.4 enables the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to move to a locking station, as shown in fig. 8-12; when unlocking operation is carried out, the rotating piece 2.2 is rotated along any time needle direction by overcoming the elastic force of the first elastic unit 2.1, when any limit groove 2.21 on the rotating piece 2.2 is rotated to align with the sliding pin 2.3, the elastic force of the second elastic unit 2.4 enables the sliding pin 2.3 to rapidly slide into the limit groove 2.21, the rotating piece 2.2 is locked, and meanwhile, the rotating piece 2.2 drives the gear 1.4 to synchronously rotate through the rotating shaft 1.41, and the gear 1.4 enables the first arc-shaped lock tongue 1.2 and the second arc-shaped lock tongue 1.3 to move to an unlocking station.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The protective belt connecting hook for the child seat is characterized by comprising three hook units and a driving mechanism arranged on any hook unit, wherein each hook unit comprises a shell, a first arc-shaped lock tongue and a second arc-shaped lock tongue, the first arc-shaped lock tongue and the second arc-shaped lock tongue are coaxially and movably arranged in the shell in the same plane, a group of gear teeth are respectively arranged on opposite arc surfaces between the first arc-shaped lock tongue and the second arc-shaped lock tongue, a gear is rotatably arranged on the shell, and the gear is meshed and matched with the first arc-shaped lock tongue and the second arc-shaped lock tongue through two groups of gear teeth;
when the lock is locked, the three hook units are pre-connected together, the three first arc-shaped lock tongues form a complete first circular ring, and the three second arc-shaped lock tongues form a complete second circular ring;
the driving mechanism is used for driving the gears of any hook units to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate along opposite directions by a preset angle, and therefore the three hook units are interlocked pairwise.
2. The protective belt connecting hook for child seats according to claim 1, wherein the housing is provided with a first arc groove and a second arc groove which are coaxial, the first arc-shaped lock tongue is slidably disposed in the first arc groove, and the second arc-shaped lock tongue is slidably disposed in the second arc groove.
3. The protective belt connecting hook for child seat according to claim 1, wherein the pre-connection means is a snap-fit and/or magnetic connection.
4. The protective tape connecting hook for child seat according to claim 1, wherein connecting grooves for connecting protective tape are provided on each of the three hook units.
5. The protective tape connecting hook for child seat according to claim 1, wherein the preset angle is 10-30 degrees.
6. The protective belt connecting hook for child seats according to claim 1, wherein the driving mechanism comprises a first elastic unit, and the process of restoring the deformation of the first elastic unit drives the corresponding first arc-shaped lock tongue and second arc-shaped lock tongue to rotate reversely from an unlocking station accommodated in the housing by a preset angle to a locking station protruding out of the housing.
7. The protective tape connecting hook for child seat according to claim 6, wherein the first elastic unit comprises a spool rotatably provided in the housing through a rotation shaft, a rope having one end wound on the spool and the other end fixedly connected to the rotation shaft of the gear, and a socket coil spring having an elastic force driving the spool to wind the rope, the rope being unwound from the rotation shaft to rotate the gear.
8. The protective tape connecting hook for child seat according to claim 6, wherein the first elastic unit comprises a cam groove fixedly connected to a rotation shaft of the gear, the distance from the cam groove to the rotation shaft being sequentially reduced from the middle to both ends, a slide lever slidably provided in the housing, one end of the slide lever being slidably connected to the cam groove, an elastic force of the pressure spring sliding the slide lever in a direction away from the rotation shaft, the slide lever sliding toward the middle of the cam groove to rotate the gear.
9. The protective belt connecting hook for child seat according to claim 6, wherein the driving mechanism further comprises a rotating member coaxially and fixedly connected to the rotating shaft of the gear for driving the first arc-shaped lock tongue and the second arc-shaped lock tongue to move from the locking position to the unlocking position.
10. The protective belt connecting hook for child seat according to claim 9, wherein the two ends of a diameter of the rotating member are provided with limiting grooves, the housing is provided with sliding pins in a sliding manner, a second elastic unit is arranged between the housing and the sliding pins, and when the first arc-shaped lock tongue and the second arc-shaped lock tongue are located at the unlocking station, the elastic force of the second elastic unit drives the sliding pins to slide into the limiting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263195.3A CN114701411B (en) | 2022-03-17 | 2022-03-17 | Protective belt connecting hook piece for child seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263195.3A CN114701411B (en) | 2022-03-17 | 2022-03-17 | Protective belt connecting hook piece for child seat |
Publications (2)
| Publication Number | Publication Date |
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| CN114701411A CN114701411A (en) | 2022-07-05 |
| CN114701411B true CN114701411B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210263195.3A Active CN114701411B (en) | 2022-03-17 | 2022-03-17 | Protective belt connecting hook piece for child seat |
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| Country | Link |
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| CN (1) | CN114701411B (en) |
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| CN2637660Y (en) * | 2003-08-20 | 2004-09-01 | 陆肇华 | Glass door lock |
| CN101797087A (en) * | 2009-02-06 | 2010-08-11 | 荷兰商伍轮实业股份有限公司 | Buckle |
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| DE202016103456U1 (en) * | 2016-06-29 | 2017-10-05 | Hubert Kowalewski | connecting ring |
| CN111504775A (en) * | 2020-06-04 | 2020-08-07 | 西安建筑科技大学 | Adjustable claw type concrete uniaxial tensile test clamp and using method thereof |
| EP3885184A1 (en) * | 2020-03-26 | 2021-09-29 | Hauck GmbH & Co. KG | Child seat with height adjustable headrest |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2566260A (en) * | 2017-09-01 | 2019-03-13 | Care4Futures Ltd | Occupant restraint adjustment and fastening apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205123A2 (en) * | 2000-11-14 | 2002-05-15 | Illinois Tool Works Inc. | Buckle assembly |
| EP1295541A1 (en) * | 2001-09-21 | 2003-03-26 | BELT & BUCKLE S.r.l. | Buckle for safety belt with three branches, in particular for safety seat for children carried in motor vehicles and the like |
| CN2637660Y (en) * | 2003-08-20 | 2004-09-01 | 陆肇华 | Glass door lock |
| CN101797087A (en) * | 2009-02-06 | 2010-08-11 | 荷兰商伍轮实业股份有限公司 | Buckle |
| CN201571590U (en) * | 2009-07-03 | 2010-09-08 | 曾忻婕 | Seat belt buckle |
| CN104494478A (en) * | 2014-12-23 | 2015-04-08 | 常州市博聪儿童用品有限公司 | Lock catch connection device of child seats in cars |
| DE202016103456U1 (en) * | 2016-06-29 | 2017-10-05 | Hubert Kowalewski | connecting ring |
| EP3885184A1 (en) * | 2020-03-26 | 2021-09-29 | Hauck GmbH & Co. KG | Child seat with height adjustable headrest |
| CN111504775A (en) * | 2020-06-04 | 2020-08-07 | 西安建筑科技大学 | Adjustable claw type concrete uniaxial tensile test clamp and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114701411A (en) | 2022-07-05 |
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