Retractable baby gate

1 . A retractable baby gate, comprising:

a first gate fabric and a second gate fabric adjacent to the first gate fabric;

a roller, being a hollow cylinder and mounted on one side of the first gate fabric, wherein a rolling shaft is coaxially arranged in the roller, one end of the first gate fabric is fixed to the rolling shaft and winds the periphery of the rolling shaft, a longitudinal opening through which the first gate fabric comes in and goes out is formed in a peripheral surface of the roller, a shell is fixedly connected to an upper end of the roller, and a base fixedly connected to a mounting fixed surface is connected to a lower end of the shell; and

a plurality of splicing rods, a first one of the splicing rods being connected to an edge of one side of the first gate fabric away from the roller, wherein a handle and two fixed seats are mounted on a periphery of a second one of the splicing rods; and the two fixed seats are arranged in a vertical direction of the second splicing rod and respectively located at an upper position and a lower position of the second splicing rod; wherein the first splicing rod is provided with two symmetrically formed clamping cavities for clamping the first gate fabric and the second gate fabric on the corresponding sides respectively, so as to splice the first gate fabric and the second gate fabric into an integrated structure;

a connecting portion, cooperating with the clamping cavities, formed at an edge of one side of the first gate fabric, wherein the connecting portion is connected to the first splicing rod;

a control portion, arranged in the shell to control rotation and locking of the rolling shaft, wherein the control portion comprises a gear coaxially connected to the rolling shaft, a toothed structure capable of engaging with the gear is arranged on one side of the gear, one end of the toothed structure is rotationally connected to a bottom surface of the shell at a coupling point, and the toothed structure rotates relative to the coupling point toward or away from the gear, wherein the control portion is arranged at the upper end of the roller;

a connecting rod, penetrating through an upper surface and the bottom surface of the shell and being arranged in the shell, wherein a rotating handle is connected to a top of the connecting rod; a lock sheet is integrally formed at a bottom of the connecting rod; a projection extending horizontally in a direction away from a center of the lock sheet is formed on the periphery of the lock sheet;

wherein the shell is coupled to a gate frame or fixed surface by rotating the rotating handle, which drives the connecting rod and the lock sheet to rotate, such that the projection of the lock sheet engages a groove of the gate frame or fixed surface; and the shell is detached from the gate frame or fixed surface by rotating the rotating handle reversely, thereby separating the projection of the lock sheet from the groove;

a reinforcing rod, arranged between the base and the shell, wherein a third fixed seat is mounted on the reinforcing rod; wherein the third fixed seat is provided with a threaded hole; a screw is inserted into the threaded hole to fixedly connect the third fixed seat to the gate frame or fixed surface;

a switch, controlling the toothed structure to rotate and being connected to an upper surface of the toothed structure, wherein the switch is toggled to control the toothed structure to rotate about the coupling point between the toothed structure and the shell to move toward or away from the gear, so as to engage or disengage the gear; and the switch is arranged above the shell;

a stopper, arranged at a bottom of the switch;

a barrier plate, arranged at the upper surface of the toothed structure, wherein one end of the barrier plate extends horizontally past a sawtooth starting end surface of the toothed structure; the stopper extends to be in contact with a side surface of the barrier plate to drive the barrier plate to rotate; wherein when the switch is toggled to an unlocked position, the stopper engages the barrier plate to drive the toothed structure to be separated from the gear, and when the switch is toggled reversely to a locked position, the toothed structure rotates reversely about the coupling point until the toothed structure engages with the gear;

wherein when the toothed structure engages with the gear, the rolling shaft is locked and prevented from rotating, and when the toothed structure is separated from the gear, the rolling shaft is allowed to rotate to release or retract the first gate fabric.

2 . The retractable baby gate according to claim 1 , wherein a fixing part fixed with the ground is arranged at a bottom of the first gate fabric.

3 . The retractable baby gate according to claim 2 , wherein at least one pet hole is formed in the first gate fabric, a check apron is arranged at the pet hole, the check apron is lowered to shield the pet hole, the check apron is rolled to allow passage through the pet hole.

4 . The retractable baby gate according to claim 3 , wherein the fixing part is a suction disc, a magnetic structure or a double-sided adhesive.

5 . The retractable baby gate according to claim 1 , wherein a spring is arranged between the barrier plate and an inner wall of the shell; wherein in the unlocked position of the switch the spring is in a compressed state, and in the locked position the spring is restored to a normal uncompressed state to push the barrier plate and the toothed structure together to rotate toward the side of the gear, so that the toothed structure engages with the gear; wherein to extend the first gate fabric, the switch is toggled to the unlocked position and the toothed structure is disconnected from the gear so that the first gate fabric can be pulled; and when the first gate fabric is extended to a desired length, the switch is toggled reversely so that the toothed structure and the gear engage and are locked, and the rolling shaft coaxially connected to the gear is fixed.