CN212353701U

CN212353701U - Children's safety seat back tightness adjustment mechanism

Info

Publication number: CN212353701U
Application number: CN202021067232.6U
Authority: CN
Inventors: 丁树根
Original assignee: Wuxi Tianshuo Machinery Co ltd
Current assignee: Wuxi Tianshuo Machinery Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-15
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a children's safety seat back tightness adjustment mechanism, its technical scheme main points are: the seat back plate support mechanism comprises a first support shaft which is rotatably connected to one side of a seat bottom plate, wherein a first fixing ring is fixed outside the first support shaft, the first fixing ring is connected and fixed to a seat back plate through a first connecting rod, a first gear is fixed to the end face of the first fixing ring, a protection box is detachably connected to one side of the seat bottom plate, an avoidance groove for the first connecting rod to swing is formed in the protection box, a second gear is connected in the protection box in a rotating mode, a servo motor for driving the second gear to rotate is fixed in the protection box, and a second support shaft is connected to one side, away from the first support shaft, of the seat bottom plate in a threaded mode; this child safety seat back tightness adjustment mechanism can automize and adjust the angle of seat backup plate, and stable in structure is reliable.

Description

Children's safety seat back tightness adjustment mechanism

Technical Field

The utility model relates to a children's safety seat field, in particular to children's safety seat back tightness adjustment mechanism.

Background

Child safety seats are widely used to provide safety in the riding of children. It has better safety performance.

The backrest of the automobile safety seat comprises a backrest connecting seat, a backrest support is connected to the backrest connecting seat through an angle adjuster, a swing frame is arranged in the middle of the front of the backrest support, the lower end of the swing frame is hinged with the backrest support, a sliding frame is arranged in the backrest support, and a plurality of groups of tension springs are symmetrically arranged between the sliding frame and a bottom beam of the backrest support; the middle part of the upper end of the backrest support is provided with a guide wheel, the middle part of the sliding frame and the upper end of the swing frame are respectively provided with a rotating shaft, and a sliding frame pull belt is connected between the two rotating shafts; the swing frame is provided with a safety belt connecting seat, the safety belt connecting seat is connected with a safety helmet connecting belt and a main safety belt through a long shaft, and the safety helmet connecting belt is provided with a top-free safety helmet.

The vehicle safety seat back has the advantages of stability, but the vehicle safety seat back still has some disadvantages, such as: the tightness of the backrest cannot be conveniently adjusted, namely the angle of the backrest relative to the base plate is adjusted.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a children's safety seat back tightness degree adjustment mechanism to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the tightness adjusting mechanism of the backrest of the child safety seat comprises a first supporting shaft which is rotatably connected with one side of a seat bottom plate, a first fixing ring is fixed outside the first supporting shaft and is connected and fixed on the seat backup plate through a first connecting rod, a first gear is fixed on the end surface of the first fixing ring, a protection box is detachably connected on one side of the seat bottom plate, the protection box is provided with an avoiding groove for the first connecting rod to swing, a second gear is rotationally connected in the protection box, a servo motor for driving the second gear to rotate is fixed in the protection box, a second support shaft is connected with the seat bottom plate in a threaded manner on one side deviating from the first support shaft, the outside of second back shaft is connected with the solid fixed ring of second through first bearing rotation, the solid fixed ring of second is last to be fixed with the second connecting rod, the second connecting rod is connected to be fixed on the seat backup plate.

By adopting the technical scheme, the tightness adjusting mechanism of the backrest of the child safety seat can effectively adjust the tensioning degree of the seat backup plate, namely the angle of the seat backup plate can be conveniently adjusted, the servo motor fixed in the protection box can be started to drive the second gear to rotate, so that the first gear is driven to rotate, the first fixing ring and the first connecting rod are driven to rotate in the protection box, and meanwhile, the second fixing ring outside the second supporting shaft and the first bearing are utilized to keep stable rotation; therefore, the backrest tightness adjusting mechanism of the child safety seat can automatically adjust the angle of the seat back plate, and has a stable and reliable structure.

Preferably, a fixing rod is rotatably connected in the protection box, and the second gear is fixedly installed outside the fixing rod.

Through adopting above-mentioned technical scheme, utilize the dead lever can improve the installation convenience of second gear.

Preferably, a bearing seat is fixed in the protection box through a plurality of first locking bolts, and the fixing rod is rotatably connected in the bearing seat.

Through adopting above-mentioned technical scheme, the bearing frame can improve the stability and the flexibility of dead lever at the protection box internal rotation.

Preferably, the first support shaft is rotatably connected in the seat bottom plate through a second bearing.

Through adopting above-mentioned technical scheme, utilize the second bearing can increase stability and flexibility when first supporting axle rotates.

Preferably, the first support shaft is externally screwed with two fastening sleeves.

Through adopting above-mentioned technical scheme, utilize two adapter sleeves can be fully fixed with first solid fixed ring and first gear.

Preferably, a groove is formed in the second support shaft, a positioning block is connected to the groove in a sliding mode, a spring is connected between the positioning block and the bottom of the groove, and a positioning hole for the positioning block to insert is formed in the seat bottom plate.

Through adopting above-mentioned technical scheme, under the elastic force effect of recess internal spring, the locating piece can insert to the locating hole in to can realize the installation location to the second back shaft.

Preferably, a connecting plate is welded and fixed on the protection box, and the connecting plate is fixed on the seat bottom plate through a plurality of second locking bolts.

Through adopting above-mentioned technical scheme, utilize connecting plate and second locking bolt can conveniently realize the dismantlement of protection box.

To sum up, the utility model discloses mainly have following beneficial effect:

the tightness adjusting mechanism for the backrest of the child safety seat can effectively adjust the tensioning degree of the seat back plate, namely, the angle of the seat back plate can be conveniently adjusted, the servo motor fixed in the protection box can be started to drive the second gear to rotate so as to drive the first gear to rotate, so that the first fixing ring and the first connecting rod are driven to rotate in the protection box, and meanwhile, the second fixing ring outside the second support shaft and the first bearing are utilized to keep stable rotation; therefore, the backrest tightness adjusting mechanism of the child safety seat can automatically adjust the angle of the seat back plate, and has a stable and reliable structure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is one of the schematic structural diagrams of the present invention after the protection box is hidden;

fig. 4 is a second schematic structural view of the present invention after the protection box is hidden;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a structural sectional view of the present invention after the protection box is hidden;

fig. 7 is an enlarged view at C in fig. 6.

Reference numerals: 1. a seat pan; 2. a first support shaft; 3. a first retaining ring; 4. a first connecting rod; 5. a seat back plate; 6. a first gear; 7. a protection box; 8. an avoidance groove; 9. a second gear; 10. A servo motor; 11. a second support shaft; 12. a first bearing; 13. a second retaining ring; 14. a second connecting rod; 15. fixing the rod; 16. a first locking bolt; 17. a bearing seat; 18. a second bearing; 19. Fastening sleeves; 20. a groove; 21. positioning blocks; 22. a spring; 23. positioning holes; 24. a connecting plate; 25. And a second locking bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, a child safety seat back tightness adjusting mechanism includes a first supporting shaft 2 rotatably connected to one side of a seat bottom plate 1, wherein a first fixing ring 3 is fixed to an outer portion of the first supporting shaft 2, the first fixing ring 3 is fixedly connected to a seat back plate 5 through a first connecting rod 4, a first gear 6 is fixed to an end surface of the first fixing ring 3, a protection box 7 is detachably connected to one side of the seat bottom plate 1, an avoiding groove 8 for the first connecting rod 4 to swing is formed in the protection box 7, a second gear 9 is rotatably connected to the protection box 7, a servo motor 10 for driving the second gear 9 to rotate is fixed to the protection box 7, a second supporting shaft 11 is threadedly connected to one side of the seat bottom plate 1 facing away from the first supporting shaft 2, a second fixing ring 13 is rotatably connected to an outer portion of the second supporting shaft 11 through a first bearing 12, a second link 14 is fixed to the second fixing ring 13, and the second link 14 is fixed to the seat back 5.

Referring to fig. 1 to 5, the tightness adjusting mechanism for a backrest of a child safety seat can effectively adjust the tightening degree of the seat back plate 5, i.e., can conveniently adjust the angle of the seat back plate, and can drive the second gear 9 to rotate by starting the servo motor 10 fixed in the protection box 7, so as to drive the first gear 6 to rotate, thereby driving the first fixing ring 3 and the first connecting rod 4 to rotate in the protection box 7, and meanwhile, the second fixing ring 13 and the first bearing 12 outside the second support shaft 11 are used for keeping the rotation stable; therefore, the backrest tightness adjusting mechanism of the child safety seat can automatically adjust the angle of the seat backup plate 5, and has stable and reliable structure.

Referring to fig. 1, 4 and 5, a fixing rod 15 is rotatably connected to the protection box 7, the second gear 9 is fixedly installed outside the fixing rod 15, a bearing seat 17 is fixedly arranged in the protection box 7 through two first locking bolts 16, the convenience of installation of the second gear 9 can be improved by using the fixing rod 15, the fixing rod 15 is rotatably connected to the bearing seat 17, and the stability and flexibility of the fixing rod 15 rotating in the protection box 7 can be improved by using the bearing seat 17.

Referring to fig. 6 and 7, in which the first support shaft 2 is rotatably connected in the seat pan 1 through the second bearing 18, the second bearing 18 can increase the stability and flexibility of the first support shaft 2 when rotating; meanwhile, a groove 20 is formed in the second support shaft 11, a positioning block 21 is connected in the groove 20 in a sliding manner, a spring 22 is connected between the positioning block 21 and the bottom of the groove 20, a positioning hole 23 for the positioning block 21 to be inserted is formed in the seat bottom plate 1, and the positioning block 21 can be inserted into the positioning hole 23 under the elastic force action of the spring 22 in the groove 20, so that the second support shaft 11 can be installed and positioned.

Referring to fig. 4 and the boss 5, in which two fastening sleeves 19 are screwed on the outside of the first support shaft 2, the first fixing ring 3 and the first gear 6 can be sufficiently fixed by the two fastening sleeves 19.

Referring to fig. 1 and 2, a connecting plate 24 is welded and fixed on the protective box 7, the connecting plate 24 is fixed on the seat pan 1 by two second locking bolts 25, and the detachment of the protective box 7 can be conveniently realized by the connecting plate 24 and the second locking bolts 25.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Child safety seat back tightness adjustment mechanism connects first supporting axle (2) in seat bottom plate (1) one side including rotating, its characterized in that: the outer fixing of the first supporting shaft (2) is provided with a first fixing ring (3), the first fixing ring (3) is connected and fixed on a seat backup plate (5) through a first connecting rod (4), the end face of the first fixing ring (3) is fixed with a first gear (6), one side of the seat bottom plate (1) is detachably connected with a protection box (7), the protection box (7) is provided with a groove (8) for the first connecting rod (4) to swing, the protection box (7) is rotationally connected with a second gear (9), the protection box (7) is internally fixed with a servo motor (10) for driving the second gear (9) to rotate, one side of the seat bottom plate (1) deviating from the first supporting shaft (2) is in threaded connection with a second supporting shaft (11), the outer part of the second supporting shaft (11) is rotationally connected with a second fixing ring (13) through a first bearing (12), and a second connecting rod (14) is fixed on the second fixing ring (13), and the second connecting rod (14) is connected and fixed on the seat backup plate (5).

2. The child safety seat back slack adjustment mechanism of claim 1, wherein: a fixing rod (15) is rotatably connected in the protection box (7), and the second gear (9) is fixedly installed outside the fixing rod (15).

3. The child safety seat back slack adjustment mechanism of claim 2, wherein: a bearing seat (17) is fixed in the protection box (7) through a plurality of first locking bolts (16), and the fixing rod (15) is rotatably connected in the bearing seat (17).

4. The child safety seat back slack adjustment mechanism of claim 1, wherein: the first supporting shaft (2) is rotatably connected in the seat bottom plate (1) through a second bearing (18).

5. The child safety seat back slack adjustment mechanism of claim 1, wherein: two fastening sleeves (19) are connected with the outer threads of the first supporting shaft (2).

6. The child safety seat back slack adjustment mechanism of claim 1, wherein: a groove (20) is formed in the second support shaft (11), a positioning block (21) is connected to the inner portion of the groove (20) in a sliding mode, a spring (22) is connected between the positioning block (21) and the bottom of the groove (20), and a positioning hole (23) for inserting the positioning block (21) is formed in the seat bottom plate (1).

7. The child safety seat back slack adjustment mechanism of claim 1, wherein: and a connecting plate (24) is welded and fixed on the protection box (7), and the connecting plate (24) is fixed on the seat bottom plate (1) through a plurality of second locking bolts (25).