Turnover positioning mechanism

Abstract

The utility model discloses a turnover positioning mechanism which comprises a base and a support, the base and the support are connected through a rotating shaft, a plurality of groups of springs are arranged in the base, steel balls are correspondingly arranged at the tops of the springs, and plugs are arranged at the bottoms of the springs. A plurality of positioning grooves and a plurality of sliding grooves are formed in the periphery of the rotating shaft, the positioning grooves are formed in the longitudinal direction of the rotating shaft and used for locking the position of the support, and the sliding grooves are annular and used for guiding the support to turn over. The rotating shaft is made of alloy materials, and a gasket is arranged between the end of the rotating shaft and the support. A plurality of groups of springs and steel balls are used for pre-tightening, and the pre-tightening force is adjusted by increasing or decreasing the number of the springs and the steel balls or replacing the diameters and materials of the springs. Under the condition that the mechanism bears certain impact and vibration, the mechanism is locked at a set position, and meanwhile overturning is achieved under the action of certain torque. And the gasket is made of a self-lubricating material, so that the gasket is wear-resistant and long in service life. The turnover positioning mechanism is exquisite in design, good in strength, accurate in positioning, firm and reliable in installation and convenient to install and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary driving equipment technical field, concretely relates to a turnover positioning mechanism. BACKGROUND

[0002] The currently widely used turnover positioning mechanism is a friction positioning turnover mechanism. Such mechanism realizes the turnover positioning of the display at any angle through the friction force between the friction plate inside the mechanism and the turnover shaft. Since the vehicle-mounted display is heavy, and the vehicle body vibrates, bounces and even impacts after starting, the friction plate is always in a friction state, and after long-term use, the friction plate may be worn and may not be able to lock the position, which may cause a safety hazard. SUMMARY

[0003] In view of the above problems, the utility model aims to provide a turnover positioning mechanism for the display turnover positioning used in the auxiliary driving equipment, which is reliable in positioning, simple in installation and convenient to use.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme of:

[0005] A turnover positioning mechanism, comprising: a base and a support, the base and the support are connected through a rotating shaft, a plurality of springs are arranged in the base, a steel ball is arranged at the top of the spring, and a plug is arranged at the bottom of the spring; a plurality of positioning grooves and a plurality of sliding grooves are arranged on the outer periphery of the rotating shaft, the positioning grooves are arranged along the longitudinal direction of the rotating shaft and are used for locking the position of the support, and the sliding grooves are annular and are used for guiding the turnover of the support.

[0006] Further, the rotating shaft is made of alloy material, and a gasket is arranged between the end of the rotating shaft and the support.

[0007] The support is U-shaped, and a mounting hole is arranged on the support.

[0008] The spring is located below the rotating shaft, and the steel ball is matched with the positioning groove and the sliding groove.

[0009] Compared with the prior art, the utility model has the beneficial effects of:

[0010] The alloy material is used as the rotating shaft, the sliding groove on the rotating shaft guides the turnover direction of the support, and the positioning groove is used for locking the position of the support. A plurality of springs and steel balls are pre-tightened, the pre-tightening force is adjusted by increasing or decreasing the number of springs and steel balls, or by replacing the diameter and material of the spring. The mechanism is locked at the set position under the condition of bearing a certain impact and vibration, and is turned over under the action of a certain torque. The gasket is made of self-lubricating functional material, is wear-resistant and has a long service life. The turnover positioning mechanism is designed to be compact, has good strength, is accurate in positioning, is firmly and reliably installed, and is convenient to install and use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the structure diagram of the turnover positioning mechanism of the utility model;

[0012] Figure 2 is the sectional view of the turnover positioning mechanism of the utility model;

[0013] Figure 3 is the perspective view of the rotating shaft of the utility model;

[0014] Figure 4 is the front view of the rotating shaft of the utility model. DETAILED DESCRIPTION

[0015] The technical scheme of the utility model is described in detail below in combination with the drawings and specific embodiments.

[0016] Referring to Figures 1-4 A kind of turnover positioning mechanism, including: base 1 and support 2, the base and support are connected by rotating shaft 3, multiple groups of spring 4 are equipped in base, corresponding steel ball 5 is equipped at the top of spring, plug 6 is equipped at the bottom of spring;The outer periphery of rotating shaft is equipped with several positioning grooves 7 and several sliding grooves 8, positioning groove is arranged along the longitudinal direction of rotating shaft, for locking support position, sliding groove is annular, for guiding support overturning.

[0017] The rotating shaft is made of alloy material, and a gasket 9 is provided between the end of the rotating shaft and the support. The gasket is made of self-lubricating material, which is wear-resistant and has long service life.

[0018] The support is U-shaped, and a mounting hole 10 is provided on the support.

[0019] The spring is located below the rotating shaft, and the steel ball is matched with the positioning groove and the sliding groove.

[0020] The turnover positioning mechanism is applied to the vehicle-mounted display of certain auxiliary driving equipment, the support and the display are connected by screws, and the base and the roof are fixed by screws. The rotating shaft is made of alloy material, the sliding groove on the shaft guides the overturning direction of the support, and the positioning groove is used for locking the position of the support. A plurality of springs and steel balls are pre-tightened, and the pre-tightening force can be adjusted by increasing or decreasing the number of springs and steel balls, or replacing the diameter and material of the springs. The mechanism is locked at the set position under certain impact and vibration conditions, and is overturned under the action of a certain torque. During use, the display can be overturned by pushing, and is automatically locked after reaching the position.

Claims

1. A flipping positioning mechanism, characterized in that, include: The base and the bracket are connected by a pivot. The base contains multiple sets of springs, with steel balls at the top and plugs at the bottom of the springs. The pivot has several positioning grooves and several sliding grooves on its outer circumference. The positioning grooves are arranged along the longitudinal direction of the pivot and are used to lock the position of the bracket. The sliding grooves are annular and are used to guide the bracket to rotate.

2. The flipping positioning mechanism according to claim 1, characterized in that, The shaft is made of alloy material, and a gasket is provided between the end of the shaft and the bracket.

3. The flipping positioning mechanism according to claim 1, characterized in that, The bracket is U-shaped and has mounting holes.

4. The flipping positioning mechanism according to claim 1, characterized in that, The spring is located below the rotating shaft, and the steel ball is adapted to the positioning groove and the sliding groove.

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