CN219388580U - Transmission mechanism of automobile armrest screen - Google Patents

Abstract

The utility model relates to a transmission mechanism of an automobile armrest screen, which is characterized by comprising a first worm, a first worm wheel, a transmission shaft, a clutch sleeve sleeved on the transmission shaft, an output gear matched with the armrest screen and a driving piece for driving the first worm to rotate, wherein the output gear is sleeved on the transmission shaft and synchronously rotates with the transmission shaft, the clutch sleeve is in interference fit with the transmission shaft, the first worm wheel is fixedly connected with the clutch sleeve and is matched with the first worm so as to drive the transmission shaft to rotate, and the transmission shaft overcomes the holding force between the armrest screen and the clutch sleeve under the interference of external force, so that the armrest screen stops rotating. By adopting the technical scheme, the utility model provides the transmission mechanism of the handrail screen, wherein the output gears are arranged at the two ends of the transmission shaft, so that the output structure is stable, the clutch sleeve is in interference fit with the transmission shaft, the clutch sleeve is fixedly connected with the first worm wheel, and the clutch sleeve is separated from the transmission shaft when interference or man clamping exists outside.

Description

Transmission mechanism of automobile armrest screen

Technical Field

The utility model relates to a transmission mechanism, in particular to a transmission mechanism of an automobile armrest screen.

Background

In modern life, automobiles are indispensible from people's life, and people choose automobiles as transportation means for traveling more. With the continuous progress of the automobile industry, the automobile technology is gradually mature, the comfort and stability in the running process of the automobile are obviously improved, and the comfort, entertainment and privacy become important factors for people to choose a car or not, so that devices which are convenient for passengers to take leisure and entertainment are also added in the automobile, for example, a display screen is added on an armrest between two seats at the back row of the automobile for passengers at the back row to operate and watch.

The current Chinese patent of the utility model with the bulletin number of CN211032404U discloses an automatic opening and closing mechanism of a seat display screen and an automobile seat comprising the same, and the automatic opening and closing mechanism comprises an electric rotating mechanism, a screen support and a screen assembly, wherein the electric rotating mechanism is arranged below a seat armrest and penetrates into the seat armrest, one end of the screen support is connected with the electric rotating mechanism, the screen assembly is arranged on the screen support, and the electric rotating mechanism drives the screen assembly to be turned upwards or turned downwards along the end part of the armrest for storage.

Above-mentioned handrail screen is realized that the screen assembly is turned up or is turned over downwards through electronic rotary mechanism and is accomodate, but if the screen assembly has the condition of interference when, inner structure is still rotating, causes the damage of screen or operating personnel tong injury etc. the security is low.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides a transmission mechanism of a handrail screen, wherein output gears are arranged at two ends of a transmission shaft, so that the output structure is stable, a clutch sleeve is in interference fit with the transmission shaft, the clutch sleeve is fixedly connected with a first worm wheel, and the clutch sleeve is separated from the transmission shaft when interference or man clamping exists outside.

The technical scheme of the utility model is as follows: the utility model provides a drive mechanism of car handrail screen, drive mechanism includes first worm, first worm wheel, transmission shaft, cover establish at transmission shaft clutch cover, with handrail screen complex output gear and drive first worm pivoted driving piece, output gear cover establish on the transmission shaft, and rotate in step with the transmission shaft, clutch cover and transmission shaft interference fit, first worm wheel and clutch cover fixed connection, thereby and with first worm cooperation drive transmission shaft rotation, thereby handrail screen overcomes the cohesion with between the clutch cover under the interference of external force to stop rotating.

By adopting the technical scheme, the clutch sleeve is in interference fit with the transmission shaft, a certain holding force exists, the first worm wheel is fixedly connected with the clutch sleeve, when the external mechanism is interfered or clamped, the external force is larger than the holding force, so that the clutch sleeve is separated from the transmission shaft, the clutch sleeve rotates, the transmission shaft is not driven to rotate any more, the output gear is in unpowered output, the handrail screen stops turning, clamping can not be performed any more, and the safety is good.

The utility model is further provided with: the two output gears are respectively sleeved at two ends of the transmission shaft.

By adopting the further arrangement, the output gears at the two ends are fixedly connected together through the transmission shaft, and when the power of the driving piece is output, the synchronous operation of the gears at the two ends can be ensured, and the smooth movement of the mechanism is ensured.

Still further, the present utility model provides: the transmission mechanism further comprises a second worm and a second worm wheel, the second worm is connected with the transmission shaft of the driving piece, and the second worm wheel is arranged on the first worm and matched with the first worm so as to drive the first worm to rotate.

By adopting the further arrangement, the transmission structure is simple, and the self-locking performance is good.

Still further, the present utility model is provided with: still including mount pad and two fixed sleeves, the mount pad on be equipped with the installation cavity and follow two holding chambeies that first worm length direction set up, the driving piece set up in the installation cavity, and the output shaft extends to the installation cavity outside, two fixed sleeves set up respectively in the holding intracavity that corresponds, the both ends of first worm rotate the setting in the fixed sleeve that corresponds.

By adopting the further arrangement, the structure is simple, the installation is convenient, and the structure is more stable when the first worm rotates.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a drive shaft and clutch cover according to an embodiment of the present utility model;

fig. 3 is a schematic view of a fixing base according to an embodiment of the present utility model.

Detailed Description

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

As shown in fig. 1-3, a transmission mechanism of an automobile armrest screen, the transmission mechanism comprises a first worm 1, a first worm wheel 2, a transmission shaft 3, a clutch sleeve 4 sleeved on the transmission shaft 3, an output gear 5 matched with the armrest screen and a driving piece 6 for driving the first worm 1 to rotate, wherein the driving piece adopts a motor, the output gear 5 is sleeved on the transmission shaft 3 and synchronously rotates with the transmission shaft 3, the clutch sleeve 4 is in interference fit with the transmission shaft 3, a groove is formed in the transmission shaft 3 along the circumferential direction, a plurality of protruding blocks are arranged on the clutch sleeve at intervals, each protruding block is matched with the groove, the first worm wheel 2 is fixedly connected with the clutch sleeve 4 and matched with the first worm wheel 1 to drive the transmission shaft 3 to rotate, the transmission shaft 3 overcomes the holding force between the clutch sleeve 4 under the interference of external force, so that the rotation of the output gear 5 is stopped, a plurality of clamping grooves are formed in the first worm wheel 2, the clamping blocks are clamped in the clamping grooves to realize the fixed connection of the first clutch sleeve and the clutch sleeve, the worm wheel 4 is in interference fit with the transmission shaft 3, and the clutch sleeve 3 cannot be in the external force of the clutch sleeve, or the clutch sleeve cannot be in the external force of the clutch sleeve is not in the free from being rotated, and the clutch sleeve is not in the external force of the fixed, and the clutch sleeve is not in the external force of the transmission mechanism.

Specifically, output gear 5 is equipped with two, and sets up respectively at the both ends of transmission shaft 3, and output gear 5 cooperates with the handrail screen, drives the handrail screen upset, realizes the angle modulation, and the structure is more stable when setting up two output gears and making the handrail screen upset, guarantees the smooth motion of mechanism, and transmission shaft 3 can not one end perk.

The transmission mechanism further comprises a second worm 7 and a second worm wheel 8, the second worm 7 is connected with a transmission shaft of the driving piece 6, the second worm wheel 8 is arranged on the first worm 1 and is matched with the second worm 7 to drive the first worm 1 to rotate, the transmission structure is simple, and the self-locking performance is good. Still including mount pad 9 and two fixed cover 10, mount pad 9 on be equipped with the installation cavity and follow two holding chambeies that first worm 1 length direction set up, driving piece 6 set up in the installation cavity, and the output shaft of driving piece extends to the installation outside the chamber, two fixed cover 10 set up respectively in the holding intracavity that corresponds, the both ends of first worm 1 rotate and set up in the fixed cover 10 that corresponds, simple structure, simple to operate for the structure is more stable when first worm 1 rotates.

Claims (4)

1. The utility model provides a drive mechanism of car handrail screen, its characterized in that, drive mechanism includes first worm (1), first worm wheel (2), transmission shaft (3), cover establish clutch collar (4) on transmission shaft (3), with handrail screen complex output gear (5) and drive first worm (1) pivoted driving piece (6), output gear (5) cover is established on transmission shaft (3), and with transmission shaft (3) synchronous rotation, clutch collar (4) and transmission shaft (3) interference fit, first worm wheel (2) and clutch collar (4) fixed connection, thereby with first worm (1) cooperation drive transmission shaft (3) rotation, handrail screen overcomes the holding power between clutch collar (4) under the interference of external force to stop rotating.

2. The transmission mechanism of the automobile armrest screen according to claim 1, wherein two output gears (5) are arranged, and the two output gears (5) are respectively sleeved at two ends of the transmission shaft (3).

3. The transmission mechanism of the automobile armrest screen according to claim 1 or 2, characterized in that the transmission mechanism further comprises a second worm (7) and a second worm wheel (8), wherein the second worm (7) is connected with the transmission shaft (3) of the driving piece (6), and the second worm wheel (8) is arranged on the first worm (1) and is matched with the first worm (1) so as to drive the first worm (1) to rotate.

4. The transmission mechanism of an automobile armrest screen according to claim 1 or 2, further comprising a mounting seat (9) and two fixing sleeves (10), wherein the mounting seat (9) is provided with a mounting cavity and two accommodating cavities arranged along the length direction of the first worm (1), the driving piece (6) is arranged in the mounting cavity, the output shaft extends to the outside of the mounting cavity, the two fixing sleeves (10) are respectively arranged in the corresponding accommodating cavities, and two ends of the first worm (1) are rotatably arranged in the corresponding fixing sleeves (10).