CN209208546U - A kind of child safety seat of safety belt auto-tensioning - Google Patents

Abstract

The utility model discloses a kind of child safety seats of safety belt auto-tensioning, including safety seat, the safety belt that the child restraint upper part of the body is used on safety seat and the upper drawstring for being tied to safety seat on car seat are set, the first end of upper drawstring is flexibly connected with safety belt, the second end of upper drawstring is suitable for connecting with the anchor point on automobile, to which when upper drawstring stress is tightened, upper drawstring drives belt tensioning.The utility model realizes that the apparatus structure of safety belt auto-tensioning is simple, and manufacturing cost is low, reusable, is not necessarily to electricity consumption, high reliablity, and reaction in time, and is hardly damaged.

Description

A kind of child safety seat of safety belt auto-tensioning

Technical field

The utility model relates to a kind of children of child safety seat technical field more particularly to safety belt auto-tensioning peaces Full seat.

Background technique

Currently, with the continuous attention to Safety of child passenger, child safety seat is received by more and more consumers. Conventional safety seat brings child restraint using five-point safety, in order to improve the comfort of children's ride-on, the shoulder of safety belt Band is not at tension, still, once vehicle collides, since safety belt is not in relaxed state, may result in Situations such as leg is encountered on head during children lean forward, there are biggish security risks.

To solve this problem, occur in the prior art collision when can auto-tensioning safety belt technology, normal When seating, safety belt is in relaxed state, it is ensured that the comfort of children's ride-on, when colliding, safety belt is quickly opened Tightly, children are avoided excessively to lean forward.In the patent that notification number is CN107380022A, a kind of child safety seat active is disclosed Shoulder belt and shoulder belt active pre-tension method are pre-tightened, first acquisition automobile emergency brake signal, is then controlled and executed according to the signal The electric motor starting of mechanism is wound into shoulder belt elongated strap in first rotating shaft and the second shaft, is tensioned shoulder belt elongated strap, works as detection When reaching required tension to the tension of shoulder belt, motor stops working.

Structure is complicated for the safety belt tensioning device, is easy to happen failure, depends in addition, whether safety belt can be tensioned in time In whether capable of obtaining automobile emergency brake signal in time, and automobile emergency brake signal is by various sensors, radar etc. Electronic equipment is detected, these electronic equipments have certain safety hidden there may be judging by accident or judging not in time Suffer from.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of youngsters of safety belt auto-tensioning Virgin safety seat is suitable for when child safety seat is moved forward due to inertia, by the belt tensioning of child restraint.

The purpose of this utility model adopts the following technical scheme that realization:

A kind of child safety seat of safety belt auto-tensioning, including safety seat, setting are used on the safety seat In the safety belt of the child restraint upper part of the body and for the safety seat to be tied to the upper drawstring on car seat, it is described on The first end of drawstring is flexibly connected with the safety belt, and the second end of the upper drawstring is suitable for connecting with the anchor point on automobile, from And when the upper drawstring stress is tightened, the upper drawstring drives the belt tensioning.

When vehicle is impacted, either children or safety seat have what is travelled forward to become under effect of inertia Gesture.In the prior art, the forward movement when being hit in order to avoid child safety seat utilizes the anchor point on upper drawstring and automobile (such as latch interface) constrains child safety seat, but for the comfort of children's ride-on, the safety of child restraint Band will not be usually tightened too much, therefore when vehicle is impacted, and safety seat will occur and do not lean forward, and the upper part of the body of children But the problem of excessively leaning forward.The upper drawstring of the utility model is not directly fixed on the safety seat, but with it is described Safety belt is flexibly connected, and when normal use, the safety belt be the state not being tensioned completely, once vehicle is brought to a halt or is occurred outside When portion is collided, the upper drawstring can't limit the Forward of the safety seat at once, therefore the safety seat and be seated at Children thereon move forward under effect of inertia, and during safety seat Forward, the upper drawstring is by the peace Full band tensioning, when being moved to the safety belt and the upper drawstring is tensioned completely, the Forward of the safety seat or The limitation leaned forward by the upper drawstring, to avoid the safety seat that excessive displacement or inclination occurs, and institute at this time It states safety belt to be also tensioned, avoids children and excessively lean forward.

Further, the child safety seat of the safety belt auto-tensioning further includes the chair that the safety seat is arranged in The limiting section of back, the limiting section are in the top of the safety belt, first end and the safety belt of the upper drawstring The second end of upper end connection, the upper drawstring extends to the safety seat around the limiting section above the limiting section Rear.

Under the action of the limiting section, when the upper drawstring stress is tensioned, the first end of the upper drawstring is along the chair Back moves up, so that the upper end of the safety belt is driven to move up, since the lower end of the safety belt is fixing end, The safety belt is tightened up.

The back side of the chair back, the limit is arranged in a kind of embodiment according to the present utility model, the limiting section There is the gap for allowing the upper drawstring to pass through, the chair back is equipped with what the confession safety belt passed through between portion and the chair back Lap belt path, the lap belt path are located at the lower section of the limiting section, and the safety belt passes through the lap belt path and prolongs The back side of the chair back is reached, the first end of the upper drawstring connects from the back side of the chair back and the upper end activity of the safety belt It connects, the second end of the upper drawstring passes through the rear that the gap extends to the safety seat.

Another embodiment according to the present utility model, the limiting section are the through-hole being formed on the chair back, The first end of the upper drawstring is flexibly connected from the front of the chair back with the upper end of the safety belt, and the second of the upper drawstring End extends to the back side of the chair back across the limiting section from the front of the chair back.

Further, the upper drawstring is flexibly connected with the safety belt by a connection piece, and the first of the upper drawstring End is connect with the connector, and the safety belt is set around the connector.

Further, elastic tension part, the elasticity are equipped between the first end and the safety seat of the upper drawstring Tensioner is suitable for being continuously applied an active force to the first end of the upper drawstring, so that the second end of the upper drawstring is fixed on When anchor point on automobile, the upper drawstring is in tensioning state.

Further, the safety belt includes two shoulder belts, sets that there are two the lap belt paths on the chair back, described in two One end of shoulder belt is located at the front of the chair back, and the other end is each passed through the back that the lap belt path extends to the chair back The first end in face, the upper drawstring is between two shoulder belts, and two shoulder belts are rotating around set on the connector.

Further, the connector is rod-shaped, and the chair back is equipped with two limit sliding chutes, the two limit sliding chutes difference The two sides of the connector are set, and the both ends of the connector are slidingly disposed in two limit sliding chutes.

Further, the child safety seat of the safety belt auto-tensioning further includes elastic tension part, the elasticity One end of tight part is connect with the connector, and the other end is connect with the chair back, and the elastic tension part passes through the connector One active force is continuously applied to the first end of the upper drawstring, to guarantee that the upper drawstring is in tensioning state.

Compared with prior art, the utility model has the beneficial effects that: the utility model realizes safety belt auto-tensioning Apparatus structure is simple, and manufacturing cost is low；Realize that the device of safety belt auto-tensioning is reusable, vehicle is brought to a halt or collided and leads After causing safety seat Forward, the original position that can manually restore safety seat, while the state of upper drawstring and safety belt is also equal It restores to the original state；The device for realizing safety belt auto-tensioning is mechanical structure, is not necessarily to electricity consumption, high reliablity, and reaction in time, and is not easy Damage.

Detailed description of the invention

Fig. 1 is the schematic diagram of a preferred embodiment of the utility model, it is shown that safety seat is in normal use State, safety belt are not tensioned；

Fig. 2 be the utility model the schematic diagram of a preferred embodiment, it is shown that safety seat by external action to The state of preceding movement, upper drawstring and safety belt are tensioned；

Fig. 3 is the schematic diagram of second preferred embodiment of the utility model, it is shown that safety seat is in normal use State, safety belt are not tensioned；

Fig. 4 be the utility model second preferred embodiment schematic diagram, it is shown that safety seat by external action to The state of preceding movement, upper drawstring and safety belt are tensioned；

Fig. 5 is the schematic diagram of the third preferred embodiment of the utility model, it is shown that safety seat is in normal use State, safety belt are not tensioned；

Fig. 6 is the schematic diagram of the 4th preferred embodiment of the utility model, it is shown that safety seat is in normal use State, safety belt are not tensioned；

Fig. 7 be the utility model the 5th preferred embodiment schematic diagram, it is shown that safety seat by external action to The state of preceding movement, upper drawstring and safety belt are tensioned, and elastic tension part is stretched；

Fig. 8 is the schematic diagram of the 6th preferred embodiment of the utility model；

Fig. 9 is the schematic diagram of the 6th preferred embodiment of the utility model, it is shown that safety seat is in normal use State, safety belt are not tensioned, and connector is in the lower end of limit sliding chutes；

Figure 10 be the utility model the 6th preferred embodiment schematic diagram, it is shown that safety seat by external action to The state of preceding movement, upper drawstring and safety belt are tensioned, and connector is in the upper end of limit sliding chutes.

In figure: 1, safety seat；11, the chair back；12, limiting section；13, lap belt path；14, limit sliding chutes；2, safety belt； 21, shoulder belt；3, upper drawstring；4, connector；7, elastic tension part；8, anchor point.

Specific embodiment

In the following, being described further in conjunction with specific embodiment to the utility model, it should be noted that do not rushing mutually Under the premise of prominent, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.

In the description of the present invention, it should be noted that for the noun of locality, if any term " center ", " transverse direction ", " longitudinal direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position Relationship is set, narration the utility model is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning It must have a particular orientation, constructed and operated with particular orientation, should not be understood as the specific protection model for limiting the utility model It encloses.

As Figure 1-10 shows, the utility model provides a kind of child safety seat of safety belt auto-tensioning, comprising: safety Seat 1；It is arranged on safety seat 1, for the safety belt 2 of child restraint；And for safety seat 1 to be tied to automotive seats Upper drawstring 3 on position.The first end of upper drawstring 3 is flexibly connected with safety belt 2, the second end of upper drawstring 3 be suitable for on automobile Anchor point 8 connects；When normal use, safety seat 1 is placed on car seat, and the second end of upper drawstring 3 is connect with anchor point 8, When children are sitting on safety seat 1, safety belt 2 by child restraint on safety seat 1, for guarantee children's ride-on it is comfortable Property, the not tensioning completely of safety belt 2, as shown in Fig. 1,3,4,5,6；When safety seat 1 moves forward under effect of inertia, on Drawstring 3 is tensioned, while safety belt 2 is tensioned by upper drawstring 3, and as shown in Fig. 2,7, children constrain in peace by safety belt 2 above the waist Between full band 2 and the chair back 11 of safety seat 1, will not excessively it lean forward.

The set-up mode of safety belt 2 is the prior art, and the utility model is not intended to limit the set-up mode of safety belt 2.Fig. 1 A kind of set-up mode of safety belt 2 in the prior art is illustratively listed, seat is fixed in one end of safety belt 2, another End is after the chair back from the lower section of seat around the front end of seat, tensioning of the user from the adjustable safety belt 2 in seat front end Degree.

Fig. 1,2 show the utility model one embodiment schematic diagram, one end of safety belt 2 is fixed on safety seat In 1 seat portion, the other end of safety belt 2, which upwardly extends and passes through the lap belt path 13 on the chair back 11, extends to the chair back 11 The back side, upper drawstring 3 is flexibly connected with the upper end of safety belt 2.Fig. 1 is the normal operating condition of safety seat 1, at this time safety belt 2 completely tensioning, upper drawstring 3 can be tensioning be also possible to it is untensioned.Fig. 2 moves forward certain for safety seat 1 Distance, upper drawstring 3 is tightened up at this time, while upper drawstring 3 tenses safety belt 2, after safety belt 2 tenses, can preferably be avoided Children excessively lean forward.

It is noted that the upper end of safety belt 2 described in the utility model, only refers in the higher a part of short transverse Safety belt 2.

Safety seat 1 is arranged when on car seat, and the chair back 11 of usual safety seat 1 abuts the backrest of car seat, The upper end of safety belt 2 is usually less than the height of car seat backrest, and the position of anchor point 8 is usually above the height of car seat backrest Degree, therefore safety seat 1 is arranged when on car seat, upper drawstring 3 cannot keep linear extension.In order to further increase pull-up Effect of contraction with 3 pairs of safety seats 1, in some embodiments, as shown in Fig. 3-Fig. 7, the children of safety belt auto-tensioning pacify Full seat further includes the limiting section 12 being arranged on the chair back 11, and limiting section 12 is in the top of 2 upper end of safety belt, upper drawstring 3 First end is flexibly connected with 2 upper end of safety belt, and the second end of upper drawstring 3 extends to around limiting section 12 from the top of limiting section 12 The rear of safety seat 1；When safety seat 1 moves forward, limiting section 12 is mobile far from anchor point 8；The first end of upper drawstring 3 is limiting It under the limitation in portion 12, is moved up along the chair back 11, upper drawstring 3 drives safety belt 2 to be tensioned to the direction close to the chair back 11, thus real Constraint now stronger to children.

In some embodiments, as shown in figure 3, the setting of limiting section 12 has at 11 back side of the chair back, and between the chair back 11 Gap, the lap belt path 13 that safety belt 2 (being not entirely shown) passes through on the chair back 11 extend to the back side of the chair back 11, limiting section 12 are located at the top of lap belt path 13, and the first end of upper drawstring 3 connects from the back side of the chair back 11 and the upper end activity of safety belt 2 It connects, behind gap of the second end of upper drawstring 3 across limiting section 12 and the chair back 11, extends back.

In further embodiments, as shown in figure 4, limiting section 12 is the through-hole being formed on the chair back 11, upper drawstring 3 First end is flexibly connected from the front of the chair back 11 with the upper end of safety belt 2 (being not entirely shown), then pulls up band 3 across limiting section 12 extend to the back side of the chair back 11 from the front of the chair back 11.

It is noted that the embodiment of limiting section 12 is not limited to the implementation method in above several embodiments.

Upper drawstring 3 is flexibly connected with safety belt 2, on the one hand guarantees that upper drawstring 3 can act on safety belt 2, in upper drawstring 3 Safety belt 2 is tensioned when stress is tightened；On the other hand allow safety belt 2 to carry out normal band to adjust, safety belt 2 is avoided to be grown When degree is adjusted, the normal use of drawstring 3 is influenced.

There are many embodiments for the connection type of upper drawstring 3 and safety belt 2.

In some embodiments, the first end of upper drawstring 3 has connecting hole (not shown), and safety belt 2 passes through the company Hole is connect, to realize being flexibly connected for upper drawstring 3 and safety belt 2.When safety belt 2 carries out length adjustment, safety belt 2 is being connected It is moved in hole, when upper drawstring 3 moves up, upper drawstring 3 drives safety belt 2 to move up, and safety belt 2 is tensed.

In further embodiments, as illustrated in figs. 5-7, the upper end of upper drawstring 3 and safety belt 2 is connected by 4 activity of connector It connects, the first end of upper drawstring 3 is connect with connector 4, so that band follower link 4 moves up when upper drawstring 3 moves up, is pacified The upper end of full band 2 is wound around on connector 4, so that safety belt 2 can be sliding around connector 4 when safety belt 2 carries out length adjustment It is dynamic, when connector 4 moves up, drives safety belt 2 to move up, safety belt 2 is tensed.

It will be understood to those skilled in the art that the shape of connector 4 can be selected according to the actual situation, can be Linear type, " Fang " shape, " mouth " font, " the sixth of the twelve Earthly Branches " font etc..

If normal under use state, upper drawstring 3 is tensioned, then while safety seat 1 moves forward, upper drawstring 3 acts at once Safety belt 2 is tensioned by safety belt 2；If normal under use state, upper drawstring 3 is not tensioned, then while safety seat 1 moves forward, on Drawstring 3 is first acted on safety belt 2, safety belt 2 is tensioned by being relaxed to tensioning after upper drawstring 3 is tensioned.In view of endangering When dangerous, lean forward excessive velocities, for the safety for further increasing children's ride-on, it is preferable that under normal operating condition, upper drawstring 3 be tensioning, when can be placed on car seat according to safety seat 1 at a distance from anchor point 8, selects the upper drawstring of appropriate length 3, when guaranteeing that upper drawstring 3 is connect with anchor point 8, upper drawstring 3 is tensioning state.

In some embodiments, in order to guarantee under normal operating condition that upper drawstring 3 is tensioning state, the of upper drawstring 3 Elastic tension part 7 is equipped between one end and safety seat 1, as shown in Figure 6,7, elastic tension part 7 is suitable for the first of upper drawstring 3 End is continuously applied an active force, to guarantee that upper drawstring 3 is in tensioning state.The elastic force of elastic tension part 7 is relative to emergency seat Chair 1 is since active force when inertia moves forward is much smaller, when safety seat 1 is moved forward due to inertia, elasticity Tight part 7 will not influence tensioning of the drawstring 3 to safety belt 2 substantially.Fig. 6 shows under normal operating condition, elastic tension part 7 State, Fig. 7 show drawstring 3 by safety belt 2 be tensioned when state, elastic tension part 7 is compared to normal operating condition quilt It stretches.

Elastic tension part 7 can be the component of spring or other specific elastic deformation abilities.Elastic tension part 7 can be with Play the role of resetting upper drawstring 3, after safety seat 1 sets back, elastic tension part 7 is shunk, and makes the first end of drawstring 3 Move down reset.

In some embodiments, safety belt 2 includes two shoulder belts 21, as shown in figure 8, one end of two shoulder belts 21 is located at the chair back 11 Front, the other end passes through the chair back 11 and extends to the back side of the chair back 11, and the chair back 11 is equipped with two safety passed through for shoulder belt 21 Tape channel 13, two lap belt paths 13 are positioned apart from, and lap belt path 13 is in the lower section of limiting section 12.

The first end of upper drawstring 3 is between two shoulder belts 21, and the middle part of connector 4 is connect with the first end of upper drawstring 3, even The both ends of fitting 4 extend to two sides, and the lower section of shoulder belt 21 is extended at lap belt path 13.

In order to avoid shifting in 4 moving process of connector, it is preferable that the child safety seat of safety belt auto-tensioning It further include two limit sliding chutes 14 being arranged on the chair back 11, two limit sliding chutes 14 are separately positioned on the two sides of connector 4, connector 4 both ends are slidingly disposed in two limit sliding chutes 14, as shown in Figure 8,9, 10.

The lower end of limit sliding chutes 14 and lap belt path 13 are substantially at sustained height, so that normal use shape

Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to In the utility model range claimed.

Claims (9)

1. a kind of child safety seat of safety belt auto-tensioning, including safety seat, setting are used on the safety seat The safety belt of the child restraint upper part of the body and for the safety seat to be tied to the upper drawstring on car seat, feature exists In the first end of the upper drawstring is flexibly connected with the safety belt, and the second end of the upper drawstring is suitable for and the anchor on automobile Point connection, so that the upper drawstring drives the belt tensioning when the upper drawstring stress is tightened.

2. the child safety seat of safety belt auto-tensioning according to claim 1, which is characterized in that further include that setting exists Limiting section on the chair back of the safety seat, the limiting section are in the top of the safety belt, and the first of the upper drawstring End is flexibly connected with the upper end of the safety belt, and the second end of the upper drawstring bypasses the limiting section from the upper of the limiting section Side extends to the rear of the safety seat.

3. the child safety seat of safety belt auto-tensioning according to claim 2, which is characterized in that the limiting section is set Set has the gap for allowing the upper drawstring to pass through between the back side of the chair back, the limiting section and the chair back, described The chair back is equipped with the lap belt path passed through for the safety belt, and the lap belt path is located at the lower section of the limiting section, institute It states safety belt and extends to the back side of the chair back across the lap belt path, the first end of the upper drawstring is from the chair back The back side is flexibly connected with the upper end of the safety belt, and the second end of the upper drawstring passes through the gap and extends to the emergency seat The rear of chair.

4. the child safety seat of safety belt auto-tensioning according to claim 2, which is characterized in that the limiting section is The through-hole being formed on the chair back, the first end of the upper drawstring is from the front and the upper end of the safety belt of the chair back It is flexibly connected, the second end of the upper drawstring passes through the back that the limiting section extends to the chair back from the front of the chair back Face.

5. the child safety seat of safety belt auto-tensioning according to claim 1 to 4, which is characterized in that on described Drawstring is flexibly connected with the safety belt by a connection piece, and the first end of the upper drawstring is connect with the connector, described Safety belt is set around the connector.

6. the child safety seat of safety belt auto-tensioning according to claim 1 to 4, which is characterized in that on described Elastic tension part is equipped between the first end of drawstring and the safety seat, the elastic tension part is suitable for the upper drawstring First end is continuously applied an active force, so that when the second end of the upper drawstring is fixed on the anchor point on automobile, the pull-up Band is in tensioning state.

7. the child safety seat of safety belt auto-tensioning according to claim 5, which is characterized in that the safety belt packet Two shoulder belts are included, are set on the chair back of the safety seat there are two the lap belt path, one end of two shoulder belts is located at described The front of the chair back, the other end are each passed through the back side that the lap belt path extends to the chair back, and the first of the upper drawstring End is between two shoulder belts, and two shoulder belts are rotating around set on the connector.

8. the child safety seat of safety belt auto-tensioning according to claim 7, which is characterized in that the connector is Rod-shaped, the chair back is equipped with two limit sliding chutes, and two limit sliding chutes are separately positioned on the two sides of the connector, the company The both ends of fitting are slidingly disposed in two limit sliding chutes.

9. the child safety seat of safety belt auto-tensioning according to claim 8, which is characterized in that further include elasticity One end of tight part, the elastic tension part is connect with the connector, and the other end is connect with the chair back, the elastic tension part It is continuously applied an active force by first end of the connector to the upper drawstring, to guarantee that the upper drawstring is in tensioning shape State.