Buckle locking device for child safety seat

Abstract

The utility model discloses a buckle locking device for a child safety seat, which relates to the technical field of child safety seats and comprises a safety lock catch and a five-point safety belt connected with the safety lock catch through a plug, and the safety lock catch comprises a first lock disc mounted on a bolt in a threaded manner and a second lock disc rotatably connected to the end of the bolt. A knob is fixedly arranged at one end of the bolt and located on the outer side of the first lock disc, and a positioning assembly for fixing the knob is arranged on the outer wall of one side of the first lock disc. The first lock disc and the second lock disc are arranged to fix the five-point type safety belt, the knob is rotated to drive the bolt to achieve locking, the knob is positioned through the metal clamping rod in the positioning assembly, and due to the fact that the metal clamping rod has certain hardness, the metal clamping rod cannot be opened by children, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of child safety seats, in particular to a buckle locking device for child safety seats. Background Art

[0002] A safety seat is a seat designed for children of different weights (or age groups) and installed in a car to effectively improve the safety of children riding in a car.

[0003] The locking devices currently used in child safety seats are mostly unlocked by pressing and rotating the seat belt after it is inserted into the safety buckle. Although this unlocking method of the locking device is convenient to use, children may unlock the seat by themselves, which poses certain safety hazards. Utility Model Content

[0004] The utility model aims to solve the defect that the buckle locking device of the child safety seat in the prior art is easily unlocked by the child himself, and proposes a buckle locking device for the child safety seat.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A buckle locking device for a child safety seat, comprising a safety buckle and a five-point safety belt connected to the safety buckle through a plug, the safety buckle comprising a first lock plate threadedly mounted on a bolt and a second lock plate rotatably connected to the end of the bolt, a knob fixedly disposed at one end of the bolt, the knob being located outside the first lock plate, and a positioning assembly for fixing the knob being disposed on an outer wall of one side of the first lock plate;

[0007] The positioning assembly includes an L-shaped clamping rod rotatably mounted on the outer wall of the first lock disk, a plurality of clamping blocks are fixedly provided on the inner side of the end of the clamping rod, a connecting piece is rotatably provided on the outer wall of one side of the first lock disk, and the clamping blocks are clamped on both sides of the inner wall of the connecting piece.

[0008] Preferably, four connecting columns and one positioning column are fixedly provided on the inner edge of the first lock disk, the length of the positioning column is greater than that of the connecting column, and a circular groove is opened on the inner edge of the second lock disk, and one end of the positioning column is located inside the circular groove.

[0009] Preferably, two limiting rods are fixedly provided on the inner side of the second locking disk, the limiting rods all pass through the first locking disk, and stoppers are fixedly provided on the ends of the limiting rods.

[0010] Preferably, five semicircular positioning frames are fixedly provided on the inner edge of the second lock disk, and the inner wall of the positioning frame fits with the plug.

[0011] Preferably, the safety belt is provided with an adjuster capable of adjusting tightness.

[0012] Preferably, each end of the safety belt is fixedly provided with a mounting block connected to the safety seat.

[0013] Preferably, the first locking disk and the second locking disk have the same diameter, and the clamping rod is made of metal.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the present invention, a first lock plate and a second lock plate are provided to fix the five-point safety belt, and the knob is turned to drive the bolt to realize the lock. The knob is positioned by a metal clamping rod in the positioning assembly. Since the metal clamping rod has a certain hardness, children cannot open it, thereby improving safety;

[0016] 2. In the present invention, a connecting column corresponding to the plug on the safety belt is arranged on the first lock disk. When the first lock disk moves toward the second lock disk, the connecting column will be driven to be inserted into the groove of the plug, so as to achieve rapid fixation and facilitate the use of the safety lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the safety lock structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the second lock disk structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the first lock disk structure of the utility model.

[0022] Serial numbers in the figure: 1. Safety lock buckle; 11. Safety belt; 12. Plug; 13. Bolt; 14. Knob; 15. Clamp rod; 16. Clamp block; 17. Connecting piece; 18. First lock disk; 19. Second lock disk; 191. Round groove; 2. Connecting column; 21. Positioning column; 3. Limiting rod; 31. Block; 4. Positioning frame; 5. Regulator; 6. Mounting block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment: This embodiment provides a buckle locking device for a child safety seat, see Figure 1-4 Specifically, it includes a safety lock buckle 1 and a five-point safety belt 11 connected to the safety lock buckle 1 through a plug 12. The safety lock buckle 1 includes a first lock disc 18 threadedly mounted on a bolt 13 and a second lock disc 19 rotatably connected to the end of the bolt 13. The first lock disc 18 and the second lock disc 19 have the same diameter. A knob 14 is fixedly disposed at one end of the bolt 13. The knob 14 is located outside the first lock disc 18. A positioning component is disposed on an outer wall of one side of the first lock disc 18 to fix the knob 14.

[0025] Insert the plug 12 at the end of the five-point safety belt 11 from five directions of the safety lock buckle 1, and drive the bolt 13 to rotate by turning the knob 14. Since the second lock disk 19 is rotatably connected with the thread, when the bolt 13 rotates, an adult holds the second lock disk 19 to prevent it from rotating, and the first lock disk 18 moves along the bolt 13 toward the second lock disk 19 to jam the plug 12. The position of the knob 14 is fixed by the positioning component to prevent children from unlocking the safety lock buckle 1, thereby improving safety.

[0026] The positioning assembly includes an L-shaped clamping rod 15 rotatably mounted on the outer wall of the first locking disk 18, a plurality of clamping blocks 16 are fixedly arranged on the inner side of the end of the clamping rod 15, a connecting piece 17 is rotatably arranged on the outer wall of one side of the first locking disk 18, and the clamping blocks 16 are clamped on both sides of the inner wall of the connecting piece 17, and the clamping rod 15 is made of metal;

[0027] Turn the lever 15 and press the two long rods of the lever 15 toward the middle, so that the block 16 on the outside of the lever 15 is inserted into the inner wall of the connecting piece 17. The lever 15 fits the outer wall of the knob 14, and the raised part in the middle of the knob 14 is located in the middle of the lever 15. Since the lever 15 is made of metal, an adult needs to press it hard to prevent children from turning the knob 14.

[0028] In the specific implementation process, Figure 3 and Figure 4 As shown, four connecting columns 2 and a positioning column 21 are fixedly provided on the inner edge of the first lock disk 18, the length of the positioning column 21 is greater than the length of the connecting column 2, a circular groove 191 is opened on the inner edge of the second lock disk 19, one end of the positioning column 21 is located inside the circular groove 191, two limiting rods 3 are fixedly provided on the inner side of the second lock disk 19, the limiting rods 3 all pass through the first lock disk 18, and the ends of the limiting rods 3 are fixedly provided with blocks 31, and five semicircular positioning frames 4 are fixedly provided on the inner edge of the second lock disk 19, and the inner wall of the positioning frame 4 is in contact with the plug 12;

[0029] When the first lock disk 18 is driven by the bolt 13, it is limited by the two limit rods 3, so that the first lock disk 18 will not rotate with the bolt 13, and can only move horizontally along the bolt 13, and the first lock disk 18 moves toward the second lock disk 19, so that the connecting column 2 will enter the groove of the plug 12, fix the position of the plug 12, and achieve locking. The positioning frame 4 facilitates the insertion of the plug 12 into the safety lock buckle 1 from five directions. After the plug 12 fits with the inner wall of the positioning frame 4, it is also convenient for the connecting column 2 to be inserted into the groove of the plug 12. The positioning column 21 is relatively long and will not detach from the groove of the lower plug 12, allowing the safety lock buckle 1 to be connected to the safety belt 11 below to avoid loss. When the connecting column 2 enters the groove of the plug 12, the end of the positioning column 21 enters the circular groove 191.

[0030] In the specific implementation process, Figure 1 As shown, the safety belt 11 is provided with an adjuster 5 for adjusting the tightness, and both ends of the safety belt 11 are fixed with a mounting block 6 connected to the safety seat.

[0031] Specifically, the working principle and operation method of the utility model are as follows:

[0032] Insert the plug 12 at the end of the safety belt 11 into the positioning frame 4 inside the second locking disk 19, and drive the bolt 13 to rotate by turning the knob 14. Since the second locking disk 19 is rotatably connected with the thread, when the bolt 13 rotates, the adult holds the second locking disk 19 to prevent it from rotating, and the first locking disk 18 moves along the bolt 13 toward the second locking disk 19, and the first locking disk 18 moves toward the second locking disk 19, so that the connecting column 2 will enter the groove of the plug 12, fix the position of the plug 12, and achieve locking. Finally, rotate the card rod 15, press the two long rods of the card rod 15 toward the middle, so that the card block 16 on the outside of the card rod 15 is stuck to the inner wall of the connecting piece 17, the card rod 15 is fitted with the outer wall of the knob 14, and the protruding part in the middle of the knob 14 is located in the middle position of the card rod 15, so as to limit the knob 14.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A buckle locking device for a child safety seat, comprising a safety buckle (1) and a five-point safety belt (11) connected to the safety buckle (1) via a plug (12), characterized in that: The safety lock (1) comprises a first lock plate (18) threadedly mounted on a bolt (13) and a second lock plate (19) rotatably connected to the end of the bolt (13); a knob (14) is fixedly provided at one end of the bolt (13); the knob (14) is located outside the first lock plate (18); and a positioning assembly for fixing the knob (14) is provided on an outer wall of one side of the first lock plate (18); The positioning assembly comprises an L-shaped clamping rod (15) rotatably mounted on the outer wall of a first lock disk (18), a plurality of clamping blocks (16) are fixedly provided on the inner side of the end of the clamping rod (15), a connecting piece (17) is rotatably provided on the outer wall of one side of the first lock disk (18), and the clamping blocks (16) are clamped on both sides of the inner wall of the connecting piece (17).

2. A buckle locking device for a child safety seat according to claim 1, characterized in that: Four connecting columns (2) and a positioning column (21) are fixedly provided on the inner edge of the first locking disk (18); the length of the positioning column (21) is greater than the length of the connecting column (2); a circular groove (191) is provided on the inner edge of the second locking disk (19); one end of the positioning column (21) is located inside the circular groove (191).

3. A buckle locking device for a child safety seat according to claim 1, characterized in that: Two limiting rods (3) are fixedly provided on the inner side of the second locking disk (19), the limiting rods (3) both pass through the first locking disk (18), and the ends of the limiting rods (3) are fixedly provided with stoppers (31).

4. A buckle locking device for a child safety seat according to claim 1, characterized in that: Five semicircular positioning frames (4) are fixedly provided on the inner edge of the second locking disk (19), and the inner wall of the positioning frame (4) is in close contact with the plug (12).

5. The buckle locking device for a child safety seat according to claim 1, characterized in that: The safety belt (11) is provided with an adjuster (5) capable of adjusting tightness.

6. A buckle locking device for a child safety seat according to claim 1, characterized in that: The ends of the safety belt (11) are fixedly provided with mounting blocks (6) connected to the safety seat.

7. A buckle locking device for a child safety seat according to claim 1, characterized in that: The first locking disk (18) and the second locking disk (19) have the same diameter, and the clamping rod (15) is made of metal.

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