CN201092290Y

CN201092290Y - Top-suction folding display unit

Info

Publication number: CN201092290Y
Application number: CNU2007200541760U
Authority: CN
Inventors: 张健荣
Original assignee: 黄月群
Priority date: 2007-07-11
Filing date: 2007-07-11
Publication date: 2008-07-30
Anticipated expiration: 2017-07-11

Abstract

The utility model relates to a vehicle ceiling folding type display unit, wherein a display unit and a ceiling base are movably connected via a coaxial rotary assembly which comprises a screw rod driven by a motor, the screw rod is movably mounted with a slide block embedded with steel balls on surface, the outer surface of the slide block is axially provided with a groove, the slide block is sheathed by a rack muffle, the rack muffle is provided with a through channel relative to the steel balls, the inner surface of the rack muffle is provided with a protruded bar engaged with the groove, the rack muffle is sheathed by an outer rotary muffle fixed with the display unit, and the inner wall of the outer rotary muffle is provided with a helical slide way engaged with the steel balls. The installment size of the vehicle ceiling folding type display unit is not affected by the size of display unit, while the rotary mechanism is sealed in muffle to prevent lubricant from drying with compact structure.

Description

Inhale the top folding display

Technical field

The utility model relates to a kind of Vehicular display device device, especially for the installing mechanism of ceiling type telltale.

Background technology

At present, a kind of configuration that Liquid Crystal Display (LCD) becomes medium-to-high grade car gradually is installed on automobile, and the ceiling type Liquid Crystal Display (LCD) is saved the space mutually because of it, easy for installation, therefore use more extensive, the ceiling type Liquid Crystal Display (LCD) of market is commonly rocker style configuration now, it comprises telltale and inhales the top base, telltale with inhale the top base and be connected with movable rotation-shaft; rocker structure is installed in to be inhaled on the base of top; comprise motor; by motor-driven screw rod, be enclosed within the slide block on the screw rod, hinge joint has connecting rod on slide block top; a hinge joint rocking arm of connecting rod; the other end of rocking arm is fixed on the movable rotation-shaft of telltale one side, and driven by motor screw rod rotation when work makes the slide block that is enclosed within on the screw rod and moves forward and backward with the connecting rod of slide block hinge joint; make movable rotation-shaft make circular movement by connecting rod to the push-and-pull of rocking arm; thus realize the folding of control telltale, its weak point of prior art is: rocking arm is stressed bigger with the company place of movable rotation-shaft when work, easy damage; Rocker style configuration can only be installed in a side of telltale, make the shell of inhaling the top base both sides symmetry to extend with the increase of display sizes, volume is bigger, influence the product appearance structure, it is particularly evident when widescreen (16: 9) is installed, and each driving parts of rocker style configuration exposes the bad and easy mummification of lubricating oil by the foreign matter card easily in use substantially.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provide a kind of mechanical structure rationally, good looking appearance, practical suction top folding display.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of suction top folding display, it comprises telltale and inhales the top base, described telltale and suction top base flexibly connect by coaxial rotation assembly, described coaxial rotation assembly comprises the motor that is installed on the base of suction top, machine shaft is connected with screw rod, on screw rod, be movably installed with the slide block of surperficial embedded steel ball, described slide block outside face has groove vertically, be with in the outside of slide block to be fixed on and inhale top base upper bracket tube, described rack tube has groove corresponding to the position of steel ball, inside face at rack tube is provided with the convex tendon that matches with groove, the rack tube outside also is with outer rotary cylinder, outer rotary cylinder is captiveed joint with telltale, and the inwall of described outer rotary cylinder is provided with the spiral slide that can match with steel ball, and the rack tube correspondence position at rotary cylinder two ends outside is provided with registration device.

The beneficial effects of the utility model are: the design's coaxial rotation assembly structure, promote outer rotary cylinder rotation by three groups of symmetrically arranged steel balls, and it is stressed evenly, and torsion is bigger; Coaxially can not be subjected to the influence of size of display when mounted, make the surface structure of product more reasonable from rotation structure; In addition, the design's rotating mechanism is sealed in the sleeve, and its lubricating oil is not easy mummification, and compact conformation is saved the space.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a coaxial rotation assembly structure scheme drawing of the present utility model;

Fig. 3 is the side cut-away view of Fig. 2;

Fig. 4 is an outer rotary cylinder scheme drawing of the present utility model;

Fig. 5 is the spiral slide scheme drawing in the outer rotary cylinder.

The specific embodiment

Referring to figs. 1 through Fig. 5, a kind of suction top folding display, its structure comprises telltale 1 and inhales top base 2, telltale 1 and suction top base 2 flexibly connect by coaxial rotation assembly 3, and coaxial rotation assembly 3 comprises: be installed in the motor of inhaling on the top base 2 31, machine shaft is installed with screw rod 32, on screw rod 32, be with a columniform slide block 34, the surface of slide block 34 is embedded with steel ball 33, and the outside face at slide block has groove 34a vertically, be with in the outside of slide block to be fixed on and inhale top base upper bracket tube 35, rack tube 35 has groove 34a corresponding to the position of steel ball 33, make steel ball 33 can protrude outside the groove, inside face at rack tube 35 is provided with the convex tendon 35b that matches with groove 34a, and rack tube 35 outsides also are with outer rotary cylinder 36, and outer rotary cylinder 36 is captiveed joint with telltale 1, the inwall of outer rotary cylinder 36 is provided with and can just be fit to the spiral slide 36a that steel ball embeds, and rack tube 35 correspondence position at rotary cylinder two ends is outside established steady ring.

When motor 31 when rotated, the screw rod 32 that is installed on the machine shaft rotates synchronously, be enclosed within the slide block 34 on the screw rod owing to be subjected to the constraint of rack tube convex tendon 35b, can only move vertically, its steel ball 33 that is embedded in outside face acted on spiral ramp 36a simultaneously when slide block 34 moved, because outer rotary cylinder is subjected to the restriction of two ends steady ring 37, forces it can only carry out rotation in situ, thereby make the telltale 1 of captiveing joint open or close with outer rotary cylinder 36.

In addition, inhale the top base and be provided with hydraulic control system, hydraulic control system comprises hydraulic actuating cylinder 41, stretch out the outer pull bar 42 of hydraulic actuating cylinder, pull bar is provided with locating piece 43, on suction top base, left and right sides travel switch 44 is installed corresponding to locating piece, 45, the other end of pull bar 42 is connected with outer rotary cylinder 36 by movable Rocker arm 46, when outer rotary cylinder 36 drives telltale 1 upset, act on pull bar 42 by Rocker arm 46 simultaneously, pull bar is moved forward and backward, when telltale is turned to when spacing, locating piece 43 on the pull bar just acts on one of them travel switch, cuts off this direction motor rotating control system; The design's hydraulic control system also plays booster action when the folding of telltale, when the telltale that closes when opening, because the effect of gravity, the excessive velocities that telltale is opened, can damage Transmission easily, this moment, hydraulic efficiency pressure system played the effect of buffering, when the telltale of opening when closing, same because the effect of gravity, make the duty ratio of motor bigger, motor breaks down easily, and the hydraulic actuating cylinder of this moment is owing to have certain thrust after opening, but helper motor easier closes telltale, and being exempted from motor burns because of excess current.

For the mechanical structure that makes coaxial rotation assembly more reasonable, the design's inwall of rotary cylinder 36 outside mills out three sizes spiral slide 36a the same with lines, spiral slide 36a rotates to the other end from an end of outer rotary cylinder inwall, the angle of every its two vertical lines from the end points to the line of centers of slideway is 120 °, be symmetrically arranged with three groups of steel balls 33 at the slide block outside face accordingly, at rack tube three corresponding groove 35a in the position with steel ball are set, when steel ball 33 when the end of spiral slide 36a slides into the other end, the telltale that is driven by rotary cylinder just detours 120 °, just the stroke of the required rotation of ceiling type telltale.

More than design is an optimal way of the present utility model, and the quantity of its spiral slide also can adopt two or many, can realize making the purpose of telltale folding equally; It is coaxial more fixing from the shared when mounted space of rotation structure for the design, can not be subjected to the influence of size of display, thereby make the surface structure of product more reasonable; In addition, rotating mechanism of the present utility model is sealed in the sleeve, and its lubricating oil is not easy mummification, and compact conformation is saved the space.

Claims

1. inhale the top folding display for one kind, it comprises telltale (1) and inhales top base (2), it is characterized in that: described telltale (1) and suction top base (2) flexibly connect by coaxial rotation assembly (3), described coaxial rotation assembly (3) comprises the motor (31) that is installed on the base of suction top, machine shaft is connected with screw rod (32), on screw rod (32), be movably installed with the slide block (34) of surperficial embedded steel ball (33), described slide block (34) outside face has groove (34a) vertically, be with in the outside of slide block (34) to be fixed on and inhale top base (2) upper bracket tube (35), described rack tube (35) has groove (35a) corresponding to the position of steel ball (33), inside face at rack tube is provided with the convex tendon (35b) that matches with groove, the rack tube outside also is with outer rotary cylinder (36), outer rotary cylinder (36) is captiveed joint with telltale (1), the inwall of described outer rotary cylinder (36) is provided with the spiral slide (36a) that can match with steel ball, and rack tube (35) correspondence position at rotary cylinder (36) two ends outside is provided with registration device (37).

2. a kind of suction according to claim 1 top folding display, it is characterized in that: described suction top base (2) is provided with hydraulic control system, hydraulic control system comprises hydraulic actuating cylinder (41), stretch out the outer pull bar (42) of hydraulic actuating cylinder, pull bar is provided with locating piece (43), left and right sides travel switch (44,45) is installed on the suction top base corresponding to locating piece, and the other end of pull bar is connected with outer rotary cylinder (36) by movable rocking arm (46).

3. a kind of suction according to claim 1 top folding display, it is characterized in that: described spiral slide (36a) rotates to the other end from an end of outer rotary cylinder, and the angle of its two vertical lines from the end points to the line of centers is 120 °.

4. a kind of suction according to claim 1 top folding display is characterized in that: described registration device (37) is a steady ring.

5. according to the described a kind of suction of claim 1 to 4 top folding display, it is characterized in that: described slide block (34) outside face is symmetrically arranged with three grooves (34a) vertically, is provided with three convex tendons (35b) at the inside face correspondence position of rack tube (35).

6. according to the described a kind of suction of claim 1 to 4 top folding display, it is characterized in that: described outer rotary cylinder inwall is symmetrically arranged with three spiral slides (36a) that size is all the same with lines, equally, be provided with three groups of steel balls (33) and three grooves (35a) at slide block and rack tube correspondence position.