CN201636199U - Self-locking rotating shaft - Google Patents

Abstract

The utility model relates to a self-locking device, in particular to a self-locking rotating shaft. It includes a rotating shaft and a shaft sleeve set on the outside of the rotating shaft. The rotating shaft is provided with a positioning groove; Set has springs. The utility model has a simple structure, can fix the rotating shaft at any required angle, has small opening and closing position limitations, wide application, effectively controls the rotating angle of the rotating shaft, realizes automatic locking at a designated position, is convenient, beautiful, safe and reliable.

Description

Self-locking shaft

technical field

The utility model relates to a self-locking device, in particular to a self-locking rotating shaft.

Background technique

Most of the components such as sun visors and rain shields adopt a hinge structure, and the fixing methods after they are opened are generally supported and fixed by other external independent components. However, these structures are not only complicated to operate, but also have a single positioning direction, and the opening and closing angle cannot be positioned according to needs, and the redundant parts affect the appearance, are easy to fall off, and pose a safety hazard.

Contents of the invention

The utility model aims at many deficiencies in the prior art, and provides a self-locking rotating shaft with simple structure, flexible rotation and multiple positioning angle options.

The technical solution adopted to achieve the above purpose is: a self-locking rotating shaft, including a rotating shaft and a shaft sleeve set outside the shaft, the shaft is provided with a positioning groove; the shaft sleeve is provided with a pin sleeve, and the pin sleeve A positioning pin with a pull ring at the end is provided, and a spring is sleeved on the positioning pin.

Compared with the prior art, the utility model has a simple structure, can fix the rotating shaft at any required angle, has small opening and closing position limitations, has wide application, effectively controls the rotating angle of the rotating shaft, and realizes automatic locking at a designated position, which is convenient Beautiful, safe and reliable.

Description of drawings

Fig. 1 is the schematic diagram of the section structure of the utility model.

In the figure: shaft sleeve 1, rotating shaft 2, positioning pin 3, spring 4, pull ring 5, pin sleeve 6, positioning groove 7.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Referring to Figure 1, in this embodiment, the self-locking shaft includes a shaft 2 and a sleeve 1 set outside the shaft 2, the shaft 2 is provided with positioning slots 7, the number of positioning slots 7 and the relative distance The angle can be determined according to the actual situation. The shaft sleeve 1 is provided with a pin sleeve 6, which is welded or integrally formed between the two. The pin sleeve 6 is provided with a positioning pin 3 with a pull ring 5 at the end, and a spring 4 is sleeved on the positioning pin 3. The positioning pin 3 adopts a stepped structure, that is, the diameter of the upper shaft is larger than that of the lower shaft, so that the spring 4 can be limited.

The pin sleeve 6 is vertically arranged with the axle sleeve 1, and the two are internally communicated, and the outer diameter of the spring 4 is larger than the port at the bottom of the pin sleeve 6 to prevent the spring 4 from escaping.

When in use, first pull out the positioning pin through the pull ring, turn the shaft, and when it reaches the specified position, release the pull ring. Under the action of the spring, the positioning pin is placed inside the positioning groove to prevent the shaft from rotating. Through automatic locking, the shaft is limited of rotation angle.

Claims (2)

1. A self-locking rotating shaft, comprising a rotating shaft and a shaft sleeve sleeved on the outside of the rotating shaft, characterized in that, the rotating shaft is provided with a positioning groove; the shaft sleeve is provided with a pin sleeve, and the pin sleeve is provided with an end There is a positioning pin with a pull ring at the top, and a spring is sleeved on the positioning pin. 2. The self-locking rotating shaft according to claim 1, characterized in that, the pin sleeve and the shaft sleeve are vertically arranged.

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