Anti-toppling lunch box hand barrow

Abstract

The invention relates to a lunch box hand barrow, which comprises a base, side surrounding frames and lifting handles, wherein the lower ends of the side surrounding frames are respectively hinged with the base and can rotate around a hinging point of the base; a sliding chute and a sliding rod which are away from the hinging point are respectively arranged on the joints of the side surrounding frames and the base; under the limiting of the sliding chute, turning type anti-toppling and upright positioning structures of the left side surrounding frame and the right side surrounding frame are formed; due to the limiting of the sliding chute, a fastening and releasing structure of a cover buckle of a lunch box rail to a lunch box is formed; a button is directly formed on a top cover; a ]-shaped gap is formed between the button and a main body of the top cover, so that a structure for driving the button to move up and down is formed; a sliding hook and a clamping slot which are respectively arranged on the button and the top cover of the left surrounding frame form an automatic locking structure of the left side surrounding frame and the right side surrounding frame; and locking ends between the left side surrounding frame and the right side surrounding frame are separated under the pressing of the button, and the gravity centers of the left side surrounding frame and the right side surrounding frame are away from the hinging point of the base, so that automatic turning structures of the left side surrounding frame and the right side surrounding frame are formed. The lunch box hand barrow has the advantages of being convenient to use, easy to open and close and capable of saving opening and closing strength, preventing toppling of the lunch box.

Description

technical field [0001] The invention relates to a lunch box rack. Background technique [0002] Existing lunch boxes cannot store meals in different categories. If they are to be separated into multiple boxes, they are not easy to carry. Therefore, someone has designed a multi-box lunch box rack that is easy to sort and carry. For example, Chinese utility model patent No. 201120467677.8 discloses a A lunch box carrying frame, which comprises a base, a side frame and a handle; the handle is movably connected to the top of the side frame; the side frame is composed of an axially symmetrical front half and a rear half; The frame is composed of two straight rods at the head and the tail, a top fence connecting the two straight rods and a guardrail. The lower ends of the two straight rods are respectively connected to the two sides of the base and can rotate around the connection of the base; The top of the joint of the side frame is provided with an opening and closing mechanis...

AI Technical Summary

Problems solved by technology

[0002] Existing lunch boxes cannot store meals in different categories. If they are to be separated into multiple boxes, they are not easy to carry. Therefore, someone has designed a multi-box lunch box rack that is easy to sort and carry. For example, Chinese utility model patent No. 201120467677.8 discloses a A lunch box carrying frame, which comprises a base, a side frame and a handle; the handle is movably connected to the top of the side frame; the side frame is composed of an axially symmetrical front half and a rear half; The frame is composed of two straight rods at the head and the tail, a top fence connecting the two straight rods and a guardrail. The lower ends of the two straight rods are respectively connected to the two sides of the base and can rotate around the connection of the base; There is an opening and closing mechanism on the top of the connection of the side frame, a storage box and a hook for chopsticks on the outside of the middle, and a groove in the middle of the base

The problems of this lunch box lifting frame are as follows: 1). When fastening the side frame, since the side frame is in an unstable state, the side frame must be manually adjusted to the upright position and the two hands are used to cooperate with the buckle at the same time. It is also difficult to align the buckles on both sides; 2). When opening the side frame, both hands must cooperate and use force at the same time. Since the side frame is in an unstable state when the side frame is opened, the side frame is easy to fall, and a little carelessness , will cause the lunch boxes storing meals to tip over; 3) When placing lunch boxes in categories, you must manually support the side frame to the upright position, otherwise, it is easy to make the side frame turn left or right and tip over the lunch box

Therefore, the lunch box rack actually has the problem of being extremely inconvenient to use

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