Vehicle-mounted navigator

Abstract

The utility model relates to the technical field of vehicle-mounted navigators, in particular to a vehicle-mounted navigator which comprises a navigator body, a protective shell, a circular navigation opening, protective blades and a driving assembly, the circular navigation opening is arranged right opposite to a screen of the navigator body, an annular installation cavity communicated with the circular navigation opening is formed in the protective shell, and the protective blades are arranged in the annular installation cavity. When the multiple protective blades are in a folded state, the multiple protective blades are spliced to form a protective plate for blocking the circular navigation opening, when the multiple protective blades are in an unfolded state, the multiple protective blades retract into the annular mounting cavity, and a control circuit board, a storage battery and an acceleration sensor are arranged in the navigator body; the driving assembly, the storage battery and the acceleration sensor are electrically connected with the control circuit board; according to the utility model, the screen of the vehicle-mounted navigator can be protected when the navigator falls off, so that the navigator is prevented from being damaged due to bumping and falling caused by uneven road surface or collision, and the service life of the vehicle-mounted navigator is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to car navigation technology field, concretely is a kind of car navigation. BACKGROUND

[0002] Car navigation is a kind of travel auxiliary equipment which can help user to accurately locate current position, and according to the established destination calculation journey, guide user to destination by map display and voice prompt two ways, the operation of car navigation mainly relies on global positioning system, and car navigation is mainly composed of chip, antenna, processor, memory, screen.

[0003] Because the existing car navigation does not have corresponding anti-impact mechanism, it is difficult to protect the navigation screen, and uneven road or impact situation is easily encountered in the process of vehicle driving, and the uneven road or impact causes the navigation to fall easily, and the navigation screen is damaged after falling, which shortens the service life of car navigation. UTILITY MODEL CONTENT

[0004] The utility model aims at the above-mentioned insufficient, provide a kind of car navigation, can protect the screen of car navigation when navigation falls, avoid the uneven road or impact of navigation and produce the jolt fall damage, prolong the service life of car navigation.

[0005] In order to realize the above-mentioned purpose, the utility model has adopted the following technical scheme:

[0006] A kind of car navigation, including navigation body, protective shell fixed on the navigation body, circular navigation port through the protective shell, the circular navigation port is opposite the screen of the navigation body, annular mounting cavity being provided in the protective shell and being communicated with the circular navigation port, a plurality of protective blades are provided in the annular mounting cavity, drive assembly for driving a plurality of protective blades to unfold or fold, when a plurality of protective blades are in the folding state, a plurality of protective blades are spliced to form the protective plate that blocks the circular navigation port, when a plurality of protective blades are in the unfolded state, a plurality of protective blades retract into annular mounting cavity, control circuit board, battery and acceleration sensor are provided in the navigation body, the drive assembly, battery and acceleration sensor are electrically connected with the control circuit board.

[0007] Further, the drive assembly includes the shell fixed on the back of the protective shell, motor fixed in the shell, the output shaft of the motor extends into the annular mounting cavity and is drivingly connected with the driving gear, and a plurality of protective blades are connected with the driving gear through transmission structure.

[0008] Further, the protection blade is triangular in shape, and three sides of the protection blade are in arc shape; the transmission structure comprises a rotating ring rotatably connected in the annular mounting cavity, a plurality of fixed shafts I fixed on the rotating ring, a connecting rod having one end rotatably connected to the fixed shaft I, a plurality of fixed shafts II fixed in the annular mounting cavity, one corner of the protection blade being rotatably connected to the fixed shaft II, and the other corner of the protection blade being rotatably connected to the connecting rod through a fixed shaft III, and an internal gear is arranged on an inner arc surface of the rotating ring, and the internal gear is in mesh with a driving gear.

[0009] Further, the protection blade is triangular in shape, and three sides of the protection blade are in arc shape; the transmission structure comprises a rotating ring rotatably connected in the annular mounting cavity, a plurality of fixed shafts I fixed on the rotating ring, a connecting rod having one end rotatably connected to the fixed shaft I, a plurality of fixed shafts II fixed in the annular mounting cavity, one corner of the protection blade being rotatably connected to the fixed shaft II, and the other corner of the protection blade being rotatably connected to the connecting rod through a fixed shaft III, and an internal gear is arranged on an inner arc surface of the rotating ring, and the internal gear is in mesh with a driving gear.

[0010] Further, the protection blade is triangular in shape, and three sides of the protection blade are in arc shape; the transmission structure comprises a rotating ring rotatably connected in the annular mounting cavity, a plurality of fixed shafts I fixed on the rotating ring, a connecting rod having one end rotatably connected to the fixed shaft I, a plurality of fixed shafts II fixed in the annular mounting cavity, one corner of the protection blade being rotatably connected to the fixed shaft II, and the other corner of the protection blade being rotatably connected to the connecting rod through a fixed shaft III, and an internal gear is arranged on an inner arc surface of the rotating ring, and the internal gear is in mesh with a driving gear.

[0011] Further, the protection blade is triangular in shape, and three sides of the protection blade are in arc shape; the transmission structure comprises a rotating ring rotatably connected in the annular mounting cavity, a plurality of fixed shafts I fixed on the rotating ring, a connecting rod having one end rotatably connected to the fixed shaft I, a plurality of fixed shafts II fixed in the annular mounting cavity, one corner of the protection blade being rotatably connected to the fixed shaft II, and the other corner of the protection blade being rotatably connected to the connecting rod through a fixed shaft III, and an internal gear is arranged on an inner arc surface of the rotating ring, and the internal gear is in mesh with a driving gear.

[0012] The utility model discloses the beneficial effect is:

[0013] In actual application, when the acceleration sensor detects that the vehicle is greatly shaken due to uneven road surface or impact, the driving assembly drives a plurality of protection blades to fold and splice to form a protection plate, and the circular navigation port is blocked, so as to prevent the screen from being damaged when the navigator falls; the utility model can protect the screen of the vehicle-mounted navigator when the navigator falls, avoids the shaking fall breakage of the navigator due to uneven road surface or impact, and prolongs the service life of the vehicle-mounted navigator. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the first visual angle of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the second visual angle of the utility model;

[0016] Figure 3 It is the structure schematic diagram in the protection shell of the utility model;

[0017] Fig. 1 is a structure schematic diagram of the utility model; SPECIFIC EMBODIMENT

[0018] As Figure 1 , Figure 2 andFigure 3 The utility model provides an automobile navigation device, which comprises a navigation device body 1, a protective shell 2 fixed on the navigation device body 1, a circular navigation opening 21 penetrating through the protective shell 2, the circular navigation opening 21 being arranged opposite to a screen of the navigation device body 1, an annular mounting cavity communicating with the circular navigation opening 21 being arranged in the protective shell 2, a plurality of protective blades 3 being arranged in the annular mounting cavity, a driving assembly being used for driving the plurality of protective blades 3 to unfold or fold, when the plurality of protective blades 3 are in a folded state, the plurality of protective blades 3 are spliced to form a protective plate for blocking the circular navigation opening 21, when the plurality of protective blades 3 are in an unfolded state, the plurality of protective blades 3 are retracted into the annular mounting cavity, a control circuit board, a battery and an acceleration sensor being arranged in the navigation device body 1, the driving assembly, the battery and the acceleration sensor being electrically connected to the control circuit board.

[0019] When the acceleration sensor detects that the vehicle is greatly shaken due to uneven road surface or impact, the driving assembly drives the plurality of protective blades 3 to fold and splice to form the protective plate, so as to block the circular navigation opening 21 and prevent the screen from being damaged when the navigation device falls; the utility model can protect the screen of the automobile navigation device when the navigation device falls, and avoids the navigation device from being damaged due to shaking caused by uneven road surface or impact, thereby prolonging the service life of the automobile navigation device.

[0020] Further, the driving assembly comprises an outer shell 41 fixed on the back of the protective shell 2, a motor fixed in the outer shell 41, an output shaft of the motor extending into the annular mounting cavity to drive a driving gear 42 connected thereto, and the plurality of protective blades 3 are connected with the driving gear 42 through transmission structure; in the embodiment, the motor drives the plurality of protective blades 3 to unfold or fold through the driving gear 42 and the transmission structure.

[0021] Further, the protection blades 3 are triangular in shape, and the three sides of the protection blades 3 are arc-shaped; the transmission structure comprises a rotating ring 431 rotatably connected in the annular mounting cavity, a plurality of first fixing shafts 432 fixed on the rotating ring 431, a connecting rod 433 rotatably connected at one end to the first fixing shafts 432, a plurality of second fixing shafts 434 fixed in the annular mounting cavity, one corner of the protection blade 3 being rotatably connected to the second fixing shaft 434, the other corner of the protection blade 3 being rotatably connected to the connecting rod 433 through a third fixing shaft 435, and an internal gear 436 being arranged on the inner arc surface of the rotating ring 431, and the internal gear 436 being engaged with the driving gear 42; in this embodiment, the motor drives the rotating ring 431 to rotate through the driving gear 42 and the internal gear 436, and the two corners of the protection blade 3 are rotatably connected to the connecting rod 433 and the second fixing shaft 434 respectively, so that the third corner of the protection blade 3 gradually approaches the center of the circular navigation opening 21, and a plurality of protection blades 3 are spliced at the center of the circular navigation opening 21 to form a protection plate for protecting the screen of the navigator body 1.

[0022] Further, the protection blades 3 are triangular in shape, and the three sides of the protection blades 3 are arc-shaped; the transmission structure comprises a rotating ring 431 rotatably connected in the annular mounting cavity, a plurality of first fixing shafts 432 fixed on the rotating ring 431, a connecting rod 433 rotatably connected at one end to the first fixing shafts 432, a plurality of second fixing shafts 434 fixed in the annular mounting cavity, one corner of the protection blade 3 being rotatably connected to the second fixing shaft 434, the other corner of the protection blade 3 being rotatably connected to the connecting rod 433 through a third fixing shaft 435, and an internal gear 436 being arranged on the inner arc surface of the rotating ring 431, and the internal gear 436 being engaged with the driving gear 42; in this embodiment, the motor drives the rotating ring 431 to rotate through the driving gear 42 and the internal gear 436, and the two corners of the protection blade 3 are rotatably connected to the connecting rod 433 and the second fixing shaft 434 respectively, so that the third corner of the protection blade 3 gradually approaches the center of the circular navigation opening 21, and a plurality of protection blades 3 are spliced at the center of the circular navigation opening 21 to form a protection plate for protecting the screen of the navigator body 1.

[0023] Further, the protection blades 3 are triangular in shape, and the three sides of the protection blades 3 are arc-shaped; the transmission structure comprises a rotating ring 431 rotatably connected in the annular mounting cavity, a plurality of first fixing shafts 432 fixed on the rotating ring 431, a connecting rod 433 rotatably connected at one end to the first fixing shafts 432, a plurality of second fixing shafts 434 fixed in the annular mounting cavity, one corner of the protection blade 3 being rotatably connected to the second fixing shaft 434, the other corner of the protection blade 3 being rotatably connected to the connecting rod 433 through a third fixing shaft 435, and an internal gear 436 being arranged on the inner arc surface of the rotating ring 431, and the internal gear 436 being engaged with the driving gear 42; in this embodiment, the motor drives the rotating ring 431 to rotate through the driving gear 42 and the internal gear 436, and the two corners of the protection blade 3 are rotatably connected to the connecting rod 433 and the second fixing shaft 434 respectively, so that the third corner of the protection blade 3 gradually approaches the center of the circular navigation opening 21, and a plurality of protection blades 3 are spliced at the center of the circular navigation opening 21 to form a protection plate for protecting the screen of the navigator body 1.

[0024] Further, the navigator body 1 is provided with a plurality of control buttons 11 on one side, and the control buttons 11 are electrically connected to the control circuit board; in this embodiment, the navigator body 1 and the driving assembly can be controlled through the control circuit board and the plurality of control buttons 11.

[0025] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them without departing from the scope defined by the present application.

Claims

1. A vehicle navigation system, characterized in that: The system includes a navigator body, a protective shell fixed to the navigator body, a circular navigation port penetrating the protective shell, the circular navigation port being positioned directly opposite the screen of the navigator body, an annular mounting cavity connected to the circular navigation port within the protective shell, multiple protective blades within the annular mounting cavity, and a drive assembly for driving the multiple protective blades to unfold or close. When the multiple protective blades are in the closed state, they are joined together to form a protective plate blocking the circular navigation port; when the multiple protective blades are in the unfolded state, they retract into the annular mounting cavity. The navigator body contains a control circuit board, a battery, and an acceleration sensor, all of which are electrically connected to the control circuit board.

2. The vehicle navigation system according to claim 1, characterized in that, The drive assembly includes a housing fixed to the back of the protective shell, a motor fixed inside the housing, the output shaft of the motor extending into the annular mounting cavity and connected to a drive gear, and multiple protective blades connected to the drive gear via a transmission structure.

3. A vehicle navigation system according to claim 2, characterized in that, The protective blade is triangular in shape, with three sides of the protective blade being arc-shaped. The transmission structure includes a rotating ring rotatably connected to the annular mounting cavity, multiple fixed shafts I fixed on the rotating ring, a connecting rod rotatably connected at one end to the fixed shaft I, multiple fixed shafts II fixed in the annular mounting cavity, one corner of the protective blade rotatably connected to the fixed shaft II, and the other corner of the protective blade rotatably connected to the connecting rod via a fixed shaft III. An internal gear is provided on the inner arc surface of the rotating ring, and the internal gear meshes with the driving gear.

4. A vehicle navigation system according to claim 3, characterized in that, The protective blades are provided in five pieces, and the connecting rods correspond one-to-one with the protective blades. Adjacent protective blades are inclined and overlapped, and the second fixed shaft is located below the first fixed shaft and the connecting rods.

5. A vehicle navigation system according to claim 3, characterized in that, All of the aforementioned protective blades are positioned above the rotating ring.

6. A vehicle navigation system according to claim 1, characterized in that, The navigator body has multiple control buttons on one side, and these control buttons are electrically connected to the control circuit board.

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