CN217002644U

CN217002644U - Skewed tooth pivot mechanism of folding screen of water droplet type

Info

Publication number: CN217002644U
Application number: CN202220541119.XU
Authority: CN
Inventors: 朴永植
Original assignee: Dongguan Huazhongxin Technology Co ltd
Current assignee: Dongguan Huazhongxin Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-19
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a helical gear rotating shaft mechanism of a water drop type folding screen, which comprises an inner side shell, an outer side shell, a first support, a second support, a first cam, a second cam, a first concave wheel, a second concave wheel, a first straight gear, a second straight gear, a first rack, a second rack, a helical gear, a first helical gear shaft and a second helical gear shaft, wherein the helical gear is positioned between the first helical gear shaft and the second helical gear shaft and is meshed with the first helical gear shaft and the second helical gear shaft. This skewed tooth pivot mechanism of folding screen of water droplet type can be according to demand adjustment folding angle, forms water droplet type structure during the closure, provides more dodges the space, prevents the screen crease, and the transmission through helical gear realizes that the stability of action is better, and helical gear drives with 45 tangent planes, has improved the transmissibility, reduces complete machine driven virtual position section, under the thickness condition that does not influence the casing, adjusts axle center position at will, no spatial limitation.

Description

Skewed tooth pivot mechanism of folding screen of water droplet type

Technical Field

The utility model relates to the technical field of rotating shaft mechanisms, in particular to a helical tooth rotating shaft mechanism of a water drop type folding screen.

Background

The used pivot mechanism on the folding screen electronic product of current all adopts the straight-teeth gear to realize rotating, when forming U type structure and water droplet type, the pivot inboard can not provide sufficient space of dodging, lead to the screen crease to appear, the use part is more, the structure is complicated, and the straight-teeth gear drive can not effectively conduct pivoted power, very big rotation virtual position section appears, more importantly the space limitation is poor, when adjustment axle center position, the thickness of casing has been influenced, relative position's deviation has still appeared easily, lead to the card to die or the friction abnormal sound.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is: the utility model provides a skewed tooth pivot mechanism of water droplet type folding screen for solve the problem that prior art exists.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a helical gear rotating shaft mechanism of a water drop type folding screen comprises an inner side shell, an outer side shell, a first support, a second support, a first cam, a second cam, a first concave wheel, a second concave wheel, a first straight gear, a second straight gear, a first rack, a second rack, a helical gear, a first helical gear shaft and a second helical gear shaft, wherein the inner side shell covers the outer side shell, the first rack and the second rack both slide on the inner side shell, one end of the first helical gear shaft is rotatably connected on the outer side shell, the other end of the first helical gear shaft sequentially penetrates through the first cam, the first concave wheel and the first straight gear, one end of the second helical gear shaft is rotatably connected on the outer side shell, the other end of the second helical gear shaft sequentially penetrates through the second cam, the second concave wheel and the second straight gear, the first rack is meshed with the first straight gear, the second rack is meshed with the second straight gear, the first cam is clamped with the first concave wheel, the second cam is clamped with the second concave wheel, and the helical gear is arranged between the first helical gear shaft and the second helical gear shaft and meshed with the first helical gear shaft and the second helical gear shaft.

As a preferred technical scheme, a first avoidance plate is installed on the first support, and a second avoidance plate is installed on the second support.

As a preferable technical solution, the connector further comprises a first connecting needle and a second connecting needle, the first connecting needle passes through the first bracket and is connected to the first rack, and the second connecting needle passes through the second bracket and is connected to the second rack.

As a preferable technical solution, a first spring is installed between the first spur gear and the first cam, and a second spring is installed between the second spur gear and the second cam.

As a preferred technical scheme, clamping springs are mounted at the end portions of the first spring and the second spring.

As a preferable technical solution, a screw is installed on the inner side casing, and the screw is screwed on the outer side casing.

As a preferable technical solution, a fixing member is installed at an inner side of an end portion of the outer casing, the first helical gear shaft passes through the fixing member and then is connected to the second bracket, and the second helical gear shaft passes through the fixing member and then is connected to the first bracket.

The beneficial effects of the utility model are as follows: the utility model provides a skewed tooth pivot mechanism of water droplet type folding screen, this skewed tooth pivot mechanism of water droplet type folding screen can adjust folding angle according to the demand, form water droplet type structure during the closure, more dodge the space is provided, prevent the screen crease, it is better to realize the stability of action through the transmission of helical gear, the helical gear carries out the transmission with 45 tangent planes, the transmissibility has been improved, reduce complete machine driven virtual position section, under the thickness condition that does not influence the casing, adjust axle center position at will, no spatial limitation.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

FIG. 1 is a schematic partial structure view of a helical gear rotating shaft mechanism of a water drop type folding screen according to an embodiment;

FIG. 2 is a schematic overall structure diagram of a helical tooth rotating shaft mechanism of a water drop type folding screen according to an embodiment;

fig. 3 is a schematic internal structure diagram of a helical tooth rotating shaft mechanism of a water drop type folding screen according to an embodiment.

In fig. 1 to 3:

1. an inner housing; 2. an outer housing; 3. a first bracket; 4. a second bracket; 5. a first cam; 6. a second cam; 7. a first concave wheel; 8. a second concave wheel; 9. a first straight gear; 10. a second spur gear; 11. a first rack; 12. a second rack; 13. a helical gear; 14. a first helical gear shaft; 15. a second skewed tooth shaft; 16. a first avoidance plate; 17. a second avoidance plate; 18. a first connecting pin; 19. a second connecting pin; 20. a first spring; 21. a second spring; 22. a clamp spring; 23. a screw; 24. and a fixing component.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, in this embodiment, a helical gear rotating shaft mechanism of a water drop type folding screen includes an inner casing 1, an outer casing 2, a first bracket 3, a second bracket 4, a first cam 5, a second cam 6, a first concave wheel 7, a second concave wheel 8, a first straight gear 9, a second straight gear 10, a first rack 11, a second rack 12, a helical gear 13, a first helical gear shaft 14, and a second helical gear shaft 15, wherein the inner casing 1 covers the outer casing 2, the first rack 11 and the second rack 12 both slide on the inner casing 1, one end of the first helical gear shaft 14 is rotatably connected to the outer casing 2, the other end of the first helical gear shaft 14 sequentially passes through the first cam 5, the first concave wheel 7, and the first straight gear 9, one end of the second helical gear shaft 15 is rotatably connected to the outer casing 2, the other end of the second helical gear shaft 15 sequentially penetrates through the second cam 6, the second concave wheel 8 and the second straight gear 10, the first rack 11 is meshed with the first straight gear 9, the second rack 12 is meshed with the second straight gear 10, the first cam 5 is clamped with the first concave wheel 7, the second cam 6 is clamped with the second concave wheel 8, and the helical gear 13 is located between the first helical gear shaft 14 and the second helical gear shaft 15 and meshed with the first helical gear shaft 14 and the second helical gear shaft 15.

When the first support 3 and the second support 4 are bent around the outer shell 2, a close angle (0 °) can be formed, and a joint angle (90 °) can be adjusted according to the requirement by the angle, and meanwhile, the closed angle can be set to be automatically opened, automatically closed and kept still at a certain angle, and an open angle (180 °) can be formed to be matched with a fixed part by a rotating part, and the unfolded angle is not limited to 180 °, can be larger than 180 °, and can also be smaller than 180 °.

Specifically, the first helical gear shaft 14 is clamped with the first concave wheel 7 and is rotationally connected with the first cam 5; similarly, the second helical gear shaft 15 is connected with the second concave wheel 8 in a clamping manner, and is connected with the second cam 6 in a rotating manner.

When the first bracket 3 is bent upwards, the first rack 11 is pulled out, the first straight gear 9 connected with the first rack 11 rotates and drives the first helical gear shaft 14 to rotate, the first concave wheel 7 and the first cam 5 are forced to change relative clamping position, the angle between the first bracket 3 and the outer shell 2 is changed, a fixed structure can also be formed, and when the first helical gear shaft 14 rotates, power is transmitted to the second helical gear shaft 15 through the helical gear 13 to rotate, similarly, the second bracket 4 is also bent upwards along with the first bracket 3, and the first bracket 3 and the second bracket 4 are bent synchronously.

Install first dodge board 16 on the first support 3, install the second on the second support 4 and dodge board 17, the one end of first dodge board 16 with first rack 11 is connected, the other end of first dodge board 16 articulates on the first support 3, the one end of second dodge board 17 with second rack 12 is connected, the other end of second dodge board 17 articulates on the second support 4, the screen of electronic product is in first dodge board 16 with bend on the board 17 is dodged to the second, when buckling, first dodge board 16 with the second dodges board 17 and forms the structure of water droplet type, has reserved the dodge space of lower extreme, and the upper end can lean on together again.

The helical gear rotating shaft mechanism further comprises a first connecting needle 18 and a second connecting needle 19, wherein the first connecting needle 18 penetrates through the first bracket 3 and is connected to the first rack 11, and the second connecting needle 19 penetrates through the second bracket 4 and is connected to the second rack 12.

A first spring 20 is installed between the first spur gear 9 and the first cam 5, and a second spring 21 is installed between the second spur gear 10 and the second cam 6.

Furthermore, the end of the first spring 20 and the end of the second spring 21 are both provided with a snap spring 22.

After the first concave wheel 7 and the second concave wheel 8 rotate, the first spring 20 and the second spring 21 are respectively used for controlling the reset, and the position of the first spring 20 and the position of the second spring 21 are clamped by the clamp spring 22 in the installation process.

And a screw 23 is arranged on the inner side shell 1, and the screw 23 is in threaded connection with the outer side shell 2.

In the assembling process, after the components for rotation are put into the outer case 2, the inner case 1 is mounted to the outer case 2 by the screws 23, thereby protecting the corresponding internal structure.

A fixing part 24 is installed on the inner side of the end part of the outer shell 2, the first skewed tooth shaft 14 penetrates through the fixing part 24 and then is connected to the second support 4, and the second skewed tooth shaft 15 penetrates through the fixing part 24 and then is connected to the first support 3.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and the technical principles used, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the protective scope of the present invention.

Claims

1. The utility model provides a skewed tooth pivot mechanism of water droplet type folding screen, a serial communication port, including inboard casing, outside casing, first support, second support, first cam, second cam, first concave wheel, second concave wheel, first spur gear, second spur gear, first rack, second rack, helical gear, first skewed tooth axle and second skewed tooth axle, inboard casing lid is in on the casing of outside, first rack with the second rack all slides on the casing of inboard, the one end of first skewed tooth axle rotates to be connected on the casing of outside, the other end of first skewed tooth axle passes in proper order first cam, first concave wheel first straight gear, the one end of second skewed tooth axle rotates to be connected on the casing of outside, the other end of second skewed tooth axle passes in proper order the second cam, second concave wheel, The first straight gear is meshed with the first straight gear, the second rack is meshed with the second straight gear, the first cam is clamped with the first concave wheel, the second cam is clamped with the second concave wheel, and the helical gear is located between the first helical gear shaft and the second helical gear shaft and meshed with the first helical gear shaft and the second helical gear shaft.

2. The helical tooth rotary shaft mechanism of a water drop type folding screen as claimed in claim 1, wherein a first avoiding plate is mounted on the first bracket, and a second avoiding plate is mounted on the second bracket.

3. The skewed tooth spindle mechanism of water droplet type folding screen of claim 1, further comprising a first connection pin and a second connection pin, wherein the first connection pin passes through the first bracket and connects to the first rack, and the second connection pin passes through the second bracket and connects to the second rack.

4. The helical gear rotary shaft mechanism of a water drop type folding screen as claimed in claim 1, wherein a first spring is installed between the first spur gear and the first cam, and a second spring is installed between the second spur gear and the second cam.

5. The bevel gear rotating shaft mechanism of a water drop type folding screen as claimed in claim 4, wherein the ends of the first spring and the second spring are both provided with a snap spring.

6. The helical tooth rotary shaft mechanism of a water drop type folding screen as claimed in claim 1, wherein a screw is mounted on said inner housing, and said screw is screwed on said outer housing.

7. The helical gear shaft mechanism of a water drop type folding screen as claimed in claim 1, wherein a fixing member is installed inside the end portion of the outer housing, the first helical gear shaft is connected to the second bracket after passing through the fixing member, and the second helical gear shaft is connected to the first bracket after passing through the fixing member.