Car safety seat

1. A car safety seat, comprising:

a seat body, having at least one slot structure, wherein the slot structure comprises:

a plurality of positioning slots, arranged with intervals in sequence, wherein each of the positioning slots has a first section and a second section opposite to each other; and

a plurality of guiding slots, wherein each of the positioning slots is connected with another adjacent one of the positioning slots through one of the guiding slots, each of the guiding slots straightly extends from the first section of one of the positioning slots to the second section of another adjacent one of the positioning slots, and each of the guiding slots is entirely located between the two corresponding positioning slots;

at least one safety belt, penetrating through any one of the positioning slots, wherein the safety belt is adapted to move along the corresponding guiding slot to reach another adjacent one of the positioning slots; and

a wrap member, wherein the wrap member wraps the safety belt, and the wrap member contacts with an inner edge of the slot structure such that a force for adjusting the safety belt is increased via a friction between the wrap member and the inner edge of the slot structure.

2. The car safety seat as recited in claim 1 , wherein the positioning slots are arranged with intervals in sequence along an arranging direction, an extending direction of each of the guiding slots is oblique to the arranging direction.

3. The car safety seat as recited in claim 2 , wherein the arranging direction is perpendicular to an extending direction of each of the positioning slots.

4. The car safety seat as recited in claim 1 , wherein the seat body comprises a seating portion and a backrest connected to each other, the seating portion is located below the backrest, the at least one slot structure is formed at the backrest.

5. The car safety seat as recited in claim 1 , wherein a number of the at least one slot structure is plural, a number of the at least one safety belt is plural, the safety belts penetrate through the slot structures respectively.

6. The car safety seat as recited in claim 5 , wherein the second sections of one of the slot structures and the second sections of another one of the slot structures face each other, each of the guiding slots extends obliquely from the first section of one of the positioning slots downwards to the second section of another adjacent one of the positioning slots.

7. The car safety seat as recited in claim 1 , wherein the seat body comprises a seating portion and a backrest connected to each other, the seating portion is located below the backrest, the at least one slot structure is formed at the seating portion.

8. The car safety seat as recited in claim 1 , wherein a width of each of the guiding slots is smaller than a width of each of the positioning slots.

9. The car safety seat as recited in claim 1 , wherein each of the guiding slots is connected to a connecting position of the corresponding first section, the connecting position and an end of the first section have a distance therebetween.

10. The car safety seat as recited in claim 1 , wherein each of the guiding slots is connected to a connecting position of the corresponding second section, the connecting position and an end of the second section have a distance therebetween.