132results about How to "Limited range of motion" patented technology

The invention provides a cooking utensil. The cooking utensil comprises an outer pot, a temperature controller, an elastic part and a heating disc. Guide holes are formed in the outer pot, the temperature controller is put in the outer pot, supporting legs are arranged at the bottom of a shell of the temperature controller, and the supporting legs penetrate through the guide holes. The elastic part is arranged between the shell and the outer pot, and the upper end and the lower end of the elastic part abut against the shell and the inner bottom wall of the outer pot respectively. The heating disc is arranged in the outer pot and covers the temperature controller, a receding hole is formed in the heating disc, and the top of the temperature controller can protrude out of the receding hole.The supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs. Accordingto the cooking utensil, the supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs, it is effectively avoided that a main temperature controller greatly rubs with an outer pot in the moving process, so that the main temperature controller is jammed, thus, the problemof jamming of the temperature controller is conveniently and effectively solved, and the cooking utensil is simple in structure and beneficial for popularization.

The invention discloses a tattooing needle without a resilience force and a tattooing device by using the needle. The tattooing needle without a resilience force comprises a syringe, a needle body, a needle base, a first connection rod and a first connection block, wherein the first connection block is driven by an external force to directly perform reciprocating motion; and the first connection block drives the needle body via the first connection rod and the needle base to perform reciprocating linear motion. The tattooing needle without a resilience force has the beneficial effects that the needle does not use any spring, any rubber band or any rubber ring to provide a resilience force, the external force is directly used for driving, and quick withdrawing can be realized; and the problems that resilience disappears due to long-time use of the resilience force and the needle can not be withdrawn are solved. The invention also provides a tattooing device, which comprises a motor, a handle shell, a second connection rod and the above mentioned tattooing needle. When the motor pushes the needle body, resilience force work does not need to be overcome, current and power of the motor are maintained to be stable, and the service life of the motor is greatly prolonged.

The invention provides an overhung packaging display box and relates to the field of the packaging boxes. The overhung packaging display box comprises an outer box and an inner box arranged in the outer box; the inner box comprises an inner panel and films; the inner panel is folded to be of a box structure; inner notches are formed in the two opposite side walls of the box structure; the films are bonded on the inner notches and are made of elastic transparent materials; the two opposite films are used for clamping an article; the outer box is formed by folding an outer panel; an outer notchis formed in the side wall of at least one corresponding film; and the article in the inner box can be observed through and the films. The overhung packaging display box has storage and protective effects, and can have an effect of displaying the article in the overhung packaging display box.

The invention discloses a liquid level switch and a liquid level control device. The liquid level switch comprises a stationary part (1) and a movable part, wherein the stationary part (1) is provided with a travel switch (11); one of the stationary part (1) and the movable part is provided with a hollow push rod cavity; the other one of the stationary part (1) and the movable part is provided with a push rod (21) capable of moving relative to the push rod cavity in a predetermined range of the push rod cavity; the movable part comprises a floating body (22) capable of floating on the liquid; the movement of the movable part is capable of actuating the travel switch (11). According to the technical scheme, the push rod (21) of the floating body liquid level switch is capable of moving in the predetermined range along the push rod cavity, so that the movement range of the movable part is limited, thereby avoiding shake or swing caused by excessively large movement range of the movable part; the problem that signals shake can be effectively overcome.