CN114701411A - Protective belt connecting hook for child seat - Google Patents
Protective belt connecting hook for child seat Download PDFInfo
- Publication number
- CN114701411A CN114701411A CN202210263195.3A CN202210263195A CN114701411A CN 114701411 A CN114701411 A CN 114701411A CN 202210263195 A CN202210263195 A CN 202210263195A CN 114701411 A CN114701411 A CN 114701411A
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- arc
- hook
- shaped
- gear
- shaped bolt
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- 230000001681 protective effect Effects 0.000 title claims abstract description 25
- 210000002105 tongue Anatomy 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000004804 winding Methods 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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The 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 bolt and a second arc-shaped bolt, the first arc-shaped bolt and the second arc-shaped bolt are coaxially and movably arranged in the shell in the same plane, a group of gear teeth are respectively arranged on the opposite arc-shaped surfaces between the first arc-shaped bolt and the second arc-shaped bolt, a gear is rotatably arranged on the shell, and the gear is simultaneously meshed and matched with the first arc-shaped bolt and the second arc-shaped bolt through the two groups of gear teeth; when the lock is locked, the three hook units are connected together in advance, 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 gear of any hook unit to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate in opposite directions for a preset angle, and therefore every two of the three hook units are interlocked.
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 installed on a passenger car and fixed with the rear row of seats, and child safety is protected in the driving process of the car. The protective belt of the child safety seat is detachably connected together through the connecting hook piece in front of the belly of a child, the connecting component 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, wherein the first hook piece unit is connected with the protective belt stretched from the lower side of the child span, and the second hook piece unit and the third hook piece unit are respectively connected with the protective belt stretched from the shoulders of the child.
For example, the Chinese patent with publication number CN212243264U entitled "safety buckle for child car safety seat" comprises a fixing mechanism, a connecting mechanism, an unlocking mechanism and a limiting mechanism, wherein the connecting mechanism is movably inserted at both sides of the top of the fixing mechanism, the connecting mechanism consists of two connecting buckles, a second connecting groove, a connecting seat, a limiting groove and a fixing buckle, the unlocking mechanism is fixedly arranged in an inner cavity of the fixing mechanism, and the limiting mechanism is movably arranged on the surfaces of both side walls of the fixing mechanism. The connecting seats at one ends of the two connecting buckles are respectively inserted into the clamping grooves and are fixed through the lock tongues, so that a three-point type safety belt can be formed, and the safety of the child during operation is effectively improved.
In the prior art including the above patent, the connection mode of the three-point type connection hook is generally that the second hook unit and the third hook unit (connecting buckles) are respectively inserted into the first hook unit (fixing seat), so that the second hook unit and the first hook unit are connected in a snap-fit manner, and the third hook unit and the first hook unit are connected in a snap-fit manner, but there is no direct connection between the second hook unit and the third hook unit.
Disclosure of Invention
The invention aims to provide a protective belt connecting hook piece for a child seat, which aims to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: a protective belt connecting hook for a 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 bolt and a second arc-shaped bolt, the first arc-shaped bolt and the second arc-shaped bolt are coaxially and movably arranged in the shell in the same plane, a group of gear teeth are respectively arranged on the opposite arc-shaped surfaces between the first arc-shaped bolt and the second arc-shaped bolt, a gear is rotatably arranged on the shell, and the gear is meshed with the first arc-shaped bolt and the second arc-shaped bolt through the two groups of gear teeth; when the lock is locked, the three hook units are connected together in advance, 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 gear of any hook unit to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate in opposite directions for a preset angle, and therefore every two of the three hook units are interlocked.
Furthermore, 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.
Furthermore, the pre-connection mode is clamping connection and/or magnetic connection.
Furthermore, the three hook units are provided with connecting grooves for connecting the protective belt.
Further, the preset angle is 10-30 degrees.
Furthermore, the driving mechanism comprises a first elastic unit, and the process of the first elastic unit recovering the deformation drives the corresponding first arc-shaped bolt and the corresponding second arc-shaped bolt to rotate from the unlocking station accommodated in the shell to the preset angle to the locking station protruding out of the shell.
Further, first elastic element includes wire reel, rope and nest book spring, the wire reel rotates through the pivot and sets up in the casing, the one end of rope is convoluteed and is connected on the wire reel, and other end fixed connection is in the axis of rotation of gear, the elasticity drive wire reel of nest book spring is convoluteed the rope, and the rope unwinds in the axis of rotation so that the gear rotates.
Further, first elastic unit includes cam groove, slide bar and pressure spring, cam groove fixed connection is in the axis of rotation of gear, and the distance of cam groove to axis of rotation reduces toward both ends in proper order by the centre, the slide bar slides and sets up in the casing, the one end and the cam groove sliding connection of slide bar, and the elasticity of pressure spring makes the slide bar slide along the direction of keeping away from the axis of rotation, and the slide bar slides so that gear revolve toward the cam groove centre.
Furthermore, the driving mechanism further comprises a rotating part which 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.
Furthermore, the two ends of a diameter on the rotating piece are provided with limiting grooves, the shell is provided with a sliding pin in a sliding mode, a second elastic unit is arranged between the shell and the sliding pin, and when the first arc-shaped spring bolt and the second arc-shaped spring bolt are located at an unlocking station, the elastic force of the second elastic unit drives the sliding pin to slide into the limiting grooves.
In the technical scheme, when the protective belt connecting hook piece for the child seat is locked, the first arc-shaped lock tongues and the second arc-shaped lock tongues of the three hook piece units are respectively accommodated in the respective shells, the three hook piece units are connected together in advance, 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 piece unit (any one or more hook piece units in the three hook piece units) to rotate along any direction (clockwise rotation direction or anticlockwise rotation direction of the gear), the gear is simultaneously meshed and matched with the first arc-shaped lock tongues and the second arc-shaped lock tongues, so that the first circular ring and the second circular ring rotate along opposite directions for preset angles, the three hook piece units are interlocked in pairs, and under the condition that the connection between any two hook piece units is broken due to strong force, the two hook units are still connected with the other hook unit, so that the three hook units are still connected together; and any two hook units are in an interlocking state, namely, the two hook units are respectively provided with an arc-shaped bolt (a first arc-shaped bolt or a second arc-shaped bolt) to be locked with each other, 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 technical solutions in the prior art, the drawings needed to be used 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 can be obtained by those skilled in the art according to the drawings.
Fig. 1-2 are schematic structural views of three hook units provided in the embodiment of the present invention when they are separated;
fig. 3 to 4 are schematic structural diagrams when unlocking according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the structure provided by the embodiment of the invention when unlocked;
fig. 6 is a schematic structural diagram of a hook unit provided with a driving mechanism according to an embodiment of the present invention when unlocking;
FIG. 7 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;
FIGS. 8-9 are schematic views of locking structures provided in accordance with embodiments of the present invention;
FIG. 10 is a cross-sectional view of a locked 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 view of a hook unit provided with a driving mechanism according to an embodiment of the present invention when 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 structural sectional view of a first elastic unit according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a first elastic unit according to another embodiment of the present invention;
fig. 16 is a structural sectional view of a first elastic unit according to another embodiment of the present invention.
Description of reference numerals:
1. a hook unit; 1.1, a shell; 1.2, a first arc-shaped bolt; 1.3, a second arc-shaped bolt; 1.4, a gear; 1.41, a rotating shaft; 1.5, connecting grooves; 1.6, a clamping groove; 1.7, clamping a protrusion; 2. a drive mechanism; 2.1, a first elastic unit; 2.11, a wire spool; 2.111, a rotating shaft; 2.12, a rope; 2.13, a coil spring; 2.14, cam groove; 2.15, a sliding rod; 2.16, a pressure spring; 2.2, a rotating part; 2.21, a limit groove; 2.22, rotating the handle; 2.3, sliding pins; 2.31, dialing a handle; 2.4, a second elastic unit.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-16, the protective belt connecting hook for a child seat provided in the embodiment of the present invention includes three hook units 1 and a driving mechanism 2 disposed on any one of the hook units 1, each hook unit 1 includes a housing 1.1, a first arc-shaped latch 1.2 and a second arc-shaped latch 1.3, the first arc-shaped latch 1.2 and the second arc-shaped latch 1.3 are coaxially and movably disposed in the housing 1.1 on the same plane, a set of gear teeth are respectively disposed on the arc-shaped plane opposite to each other between the first arc-shaped latch 1.2 and the second arc-shaped latch 1.3, a gear 1.4 is rotatably disposed on the housing 1.1, the gear 1.4 is simultaneously engaged with the first arc-shaped latch 1.2 and the second arc-shaped latch 1.3 through two sets of gear teeth, and the gear 1.4 can drive the first arc-shaped latch 1.2 and the second arc-shaped latch 1.3 to rotate in opposite directions regardless of clockwise rotation or counterclockwise rotation; when locking, the three hook units 1 are connected together in advance, the three first arc-shaped bolts 1.2 form a complete first circular ring, and the three second arc-shaped bolts 1.3 form a complete second circular ring; the driving mechanism 2 is used for driving the gear 1.4 of any hook unit 1 to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate in opposite directions for a preset angle, and therefore every two of the three hook units 1 are interlocked.
Specifically, the three hook units 1 are provided with connecting grooves 1.5 for connecting the protective tape. The relative arc-shaped surface between the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 refers to the arc-shaped surface facing the other side, for example, in this embodiment, the inner diameter of the first arc-shaped bolt 1.2 in the same hook unit 1 is smaller than the inner diameter of the second arc-shaped bolt 1.3, and then the relative arc-shaped surface between the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 is the outer peripheral side surface of the first arc-shaped bolt 1.2 and the inner peripheral side surface of the second arc-shaped bolt 1.3. Set up coaxial first arc groove and second arc groove on casing 1.1, the both ends in first arc groove all run through the side that corresponds casing 1.1 two each other into 120 degrees with the both ends in second arc groove, the central angle that first arc groove and second arc groove on each 1 casing of colluding unit 1 casing 1.1 respectively are 120 degrees promptly, also the central angle that first arc spring bolt 1.2 and second arc spring bolt 1.3 on each 1 casing of colluding unit 1 respectively are 120 degrees, first arc spring bolt 1.2 slides and sets up in first arc groove, second arc spring bolt 1.3 slides and sets up in second arc groove, thereby realize that first arc spring bolt 1.2 and second arc spring bolt 1.3 coplanar coaxial activity set up in casing 1.1. When in locking, the three hook element units 1 are pre-connected together in a clamping and/or magnetic attraction way, preferably, two side surfaces which mutually form 120 degrees on one hook element unit 1 are respectively provided with a clamping groove 1.6, and the other two hook element units 1 are respectively provided with a clamping bulge 1.7 which is clamped with the clamping groove 1.6, so that the pre-connection of the three hook element units 1 is realized; or two side surfaces of each hook unit 1 forming 120 degrees are respectively provided with a magnetic part, so that the three hook units 1 are connected together in advance. The first ring and the second ring are rotated in opposite directions by a predetermined angle, preferably 10 to 30 degrees.
In the technical scheme, when the protective belt connecting hook for the child seat is locked, as shown in fig. 1-2, the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 of the three hook units 1 are respectively accommodated in the respective shell 1.1, that is, the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 are both positioned at an unlocking station, the three hook units 1 are pre-connected together, as shown in fig. 3-5, the three first arc-shaped bolts 1.2 form a complete first circular ring, the three second arc-shaped bolts 1.3 form a complete second circular ring, then the driving mechanism 2 drives the gear 1.4 of any hook unit 1 (any one or more hook units 1 in the three hook units 1) to rotate along any direction (the clockwise rotation direction or the counterclockwise rotation direction of the gear 1.4), the gear 1.4 is simultaneously meshed with the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3, the first circular ring and the second circular ring are rotated in opposite directions by a preset angle, at the moment, the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 of each hook unit 1 protrude out of the corresponding shell 1.1 and are positioned at a locking station, so that every two of the three hook units 1 are interlocked, every two of the three hook units 1 are specifically locked every two of the three hook units 1, and any two hook units 1 are locked each other. For example, as shown in fig. 10, the driving mechanism 2 drives the gear 1.4 to rotate counterclockwise, the gear 1.4 drives one of the first arc-shaped bolts 1.2 to rotate clockwise, the gear 1.4 simultaneously rotates the second arc lock tongue 1.3 anticlockwise, the first arc lock tongue 1.2 is inserted into the first arc groove of the component unit in the clockwise direction, and pushes the first arc lock tongue 1.2 in the first arc groove to rotate, thereby realizing the clockwise rotation of the first circular ring and the anticlockwise rotation of the second circular ring, leading any two hook units 1 to be locked mutually, namely, the two hook units 1 are respectively provided with an arc-shaped bolt (a first arc-shaped bolt 1.2 or a second arc-shaped bolt 1.3) which is inserted into an arc-shaped groove (a first arc-shaped groove or a second arc-shaped groove) of the other side for locking, for example, the first arc bolt 1.2 of the former of the two hook units 1 is inserted into the first arc groove of the latter, and the second arc bolt 1.3 of the latter is inserted into the second arc groove of the former; and any two hook units 1 are locked, and under the condition that any two hook units 1 are disconnected due to 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 bolts 1.2 to rotate counterclockwise, and the gear 1.4 simultaneously drives the second arc-shaped bolt 1.3 to rotate clockwise, so that the first circular ring rotates clockwise, and the second circular ring rotates counterclockwise, so that the three hook units 1 are interlocked pairwise.
The other effect of this embodiment is that when the locking operation or the unlocking operation is performed, the opposite rotation directions of the first ring and the second ring are driven by the dual transmission channels, that is, the first ring and the second ring can both receive the driving of the gear 1.4 driven by the driving mechanism 2 and perform the opposite rotation, and also can only receive the driving of the gear 1.4 driven by the driving mechanism 2 by any one of the first ring and the second ring, so as to achieve the simultaneous opposite rotation of the first ring and the second ring, because the other gear 1.4 not directly driven by the driving mechanism 2 performs the interlocking transmission between the first ring and the second ring, therefore, if the connection hook structure for the child seat is damaged, the gear 1.4 driven by the driving mechanism 2 is disengaged from any one of the corresponding first arc-shaped bolt 1.2 and second arc-shaped bolt 1.3, the first ring and the second ring can still be reversely rotated to unlock or lock.
In another embodiment that can be provided by the present invention, the driving mechanism 2 includes a first elastic unit 2.1, and the process of the first elastic unit 2.1 recovering deformation drives the corresponding first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 to rotate from the unlocking station accommodated in the housing 1.1 to the locking station protruding out of the housing 1.1 by a preset angle. The unlocking stations of the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 on the same hook unit 1 are unique, and in the unlocking stations, the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 are accommodated in the corresponding shell 1.1; the locking station of first arc spring bolt 1.2 and second arc spring bolt 1.3 has two on same colluding a unit 1, rotate the preset angle and all bulge and the casing 1.1 that corresponds in unblock station first arc spring bolt 1.2 and second arc spring bolt 1.3 phase opposition, wherein first arc spring bolt 1.2 clockwise rotation preset angle to locking station, the preset angle of anticlockwise rotation of second arc spring bolt 1.3 is to locking station simultaneously, perhaps first arc spring bolt 1.2 anticlockwise rotation preset angle to locking station, the preset angle of clockwise rotation of second arc spring bolt 1.3 is to locking station simultaneously.
Referring to fig. 13-14, the first elastic unit 2.1 includes a coil 2.11, a rope 2.12 and a socket spring 2.13, the coil 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 around the coil 2.11, the other end is fixedly connected to a rotating shaft 1.41 of the gear 1.4, the elastic force of the socket spring 2.13 drives the coil 2.11 to wind the rope 2.12, and the rope 2.12 is unwound from the rotating shaft 1.41 to rotate the gear 1.4. During unlocking operation, the driving gear 1.4 rotates in any clockwise direction, so that the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 move to an unlocking station, and meanwhile, the rotating shaft 1.41 of the gear 1.4 winds the rope 2.12, so that the wire spool 2.11 rotates to release the rope 2.12, and the rotation of the wire spool 2.11 accelerates the elastic deformation of the pocket spring 2.13; during the locking operation, the socket coil spring 2.13 recovers the elastic deformation, so that the wire spool 2.11 rotates the winding rope 2.12, and the rotating shaft 1.41 rotates the unwinding rope 2.12, and simultaneously the gear 1.4 rotates reversely, and the gear 1.4 drives the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 to move to the locking station.
As another preferable technical solution of this 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 from the middle to both 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 to the cam groove 2.14, the elastic force of the compression spring 2.16 causes the sliding rod 2.15 to slide in the direction away from the rotating shaft 1.41, and the sliding rod 2.15 slides to the middle of the cam groove 2.14 to rotate the gear 1.4. When locking, the end of the sliding rod 2.15 is slidably connected to the middle of the cam groove 2.14, and when unlocking operation is performed, the driving gear 1.4 rotates in any clockwise direction, so that the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 move to an 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 of the sliding rod 2.15, the end of the sliding rod 2.15 slides to the edge of the cam groove 2.14 from the middle of the cam groove 2.14, so that the sliding rod 2.15 slides relative to the housing 1.1 to be close to the rotating shaft 1.41, and the sliding of the sliding rod 2.15 relative to the housing 1.1 further compresses the pressure spring 2.16; during the locking operation, the pressure spring 2.16 recovers the elastic deformation, so that the sliding rod 2.15 slides relative to the housing 1.1 away from the rotating shaft 1.41, 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 is reversely rotated with the gear 1.4, and the gear 1.4 moves the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 to the locking position.
In another embodiment provided by the present invention, the driving mechanism 2 further includes a rotating member 2.2, and the rotating member 2.2 is coaxially and fixedly connected to a rotating shaft 1.41 of the gear 1.4, and is configured to drive the gear 1.4 to rotate so as to move the first arc-shaped bolt 1.2 and the second arc-shaped bolt 1.3 from the locking position to the unlocking position.
As a preferred technical scheme of this embodiment, two ends of a diameter on the rotating member 2.2 are provided with a limiting groove 2.21, the housing 1.1 is slidably provided with a sliding pin 2.3, a second elastic unit 2.4 is arranged between the housing 1.1 and the sliding pin 2.3, when the first arc-shaped bolt 1.2 and the second arc-shaped bolt 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 groove 2.21, further, the second elastic unit 2.4 is preferably a spring, the rotating member 2.2 is provided with a rotating handle 2.22, and the sliding pin 2.3 is provided with a pulling handle 2.31. When the lock is unlocked, 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 deflector rod is toggled by overcoming the pressure of the second elastic unit 2.4, so that the sliding pin 2.3 slides out of the limiting groove 2.21, after the rotating piece 2.2 loses the limiting 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 the unlocking operation is carried out, the rotating piece 2.2 is rotated along any clockwise direction by overcoming the elastic force of the first elastic unit 2.1 through the rotating handle 2.22, when the rotating piece 2.2 rotates to any limiting groove 2.21 on the rotating piece to align to the sliding pin 2.3, the sliding pin 2.3 rapidly slides into the limiting groove 2.21 by the elastic force of the second elastic unit 2.4, the rotating piece 2.2 is locked, 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 the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A protective belt connecting hook for a 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 bolt and a second arc-shaped bolt, the first arc-shaped bolt and the second arc-shaped bolt are coaxially and movably arranged in the shell in the same plane, a group of gear teeth are respectively arranged on the opposite arc-shaped surfaces between the first arc-shaped bolt and the second arc-shaped bolt, a gear is rotatably arranged on the shell, and the gear is simultaneously meshed and matched with the first arc-shaped bolt and the second arc-shaped bolt through the two groups of gear teeth;
when the lock is locked, the three hook units are connected together in advance, 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 gear of any hook unit to rotate along any direction so as to enable the first circular ring and the second circular ring to rotate in opposite directions for a preset angle, and therefore every two of the three hook units are interlocked.
2. The protective belt connecting hook piece for the child seat as claimed in claim 1, wherein the housing is provided with a first arc groove and a second arc groove which are coaxial, the first arc lock tongue is slidably disposed in the first arc groove, and the second arc lock tongue is slidably disposed in the second arc groove.
3. The child seat according to claim 1, wherein the pre-connection is a snap-fit connection and/or a magnetic attachment.
4. The protective tape connecting hook member for a child seat according to claim 1, wherein three of said hook member units are each provided with a connecting groove for connecting a protective tape.
5. The harness attachment hook member for a child seat according to claim 1, wherein said predetermined angle is 10 to 30 degrees.
6. The protective belt connecting hook for the child seat as claimed in claim 1, wherein the actuating mechanism includes a first elastic unit, and the process of the first elastic unit recovering deformation drives the corresponding first arc-shaped latch and the corresponding second arc-shaped latch to rotate from the unlocking position stored in the housing to the locking position protruding out of the housing by a predetermined angle.
7. The protective belt connecting hook for child seats according to claim 6, wherein the first elastic unit includes a wire spool rotatably disposed in the housing through a rotating shaft, a rope having one end wound around the wire spool and the other end fixedly connected to the rotating shaft of the gear, and a coil spring having an elastic force for driving the wire spool to wind the rope, the rope being unwound from the rotating shaft to rotate the gear.
8. The protective belt coupling hook member for a child seat according to claim 6, wherein the first elastic unit includes a cam groove fixedly connected to a rotation shaft of the gear, a slide rod slidably disposed in the housing, and a compression spring, wherein a distance from the cam groove to the rotation shaft decreases from a center toward both ends of the cam groove, and wherein one end of the slide rod is slidably connected to the cam groove, and an elastic force of the compression spring slides the slide rod in a direction away from the rotation shaft, and the slide rod slides toward the center of the cam groove to rotate the gear.
9. The child seat protective belt connecting hook member as claimed in 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 latch tongue and the second arc-shaped latch tongue to move from the locking position to the unlocking position.
10. The protective belt connecting hook for the child seat as claimed in claim 9, wherein the rotating member has a diameter and two ends provided with a limiting groove, the housing is slidably provided with a sliding pin, a second elastic unit is disposed between the housing and the sliding pin, and when the first arc-shaped locking tongue and the second arc-shaped locking tongue are located at the unlocking position, the elastic force of the second elastic unit drives the sliding pin to slide into the limiting groove.
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 true CN114701411A (en) | 2022-07-05 |
| CN114701411B 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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| 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 |
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| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114701411B (en) | 2023-06-20 |
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