CN220477516U - Flip electric damper - Google Patents

Abstract

The utility model discloses a flip electric damper, which comprises a shell, a driving motor, a planetary reduction mechanism, an output shaft and an angle detection device, wherein the shell is provided with a first driving motor and a second driving motor; the shell comprises a gear ring shell, a front end cover and a rear end cover which are fixedly arranged at two ends of the gear ring shell, and outer connecting parts are symmetrically arranged on the outer wall of the gear ring shell and/or the outer walls of the front end cover and the rear end cover; the angle detection device is arranged in the rear end cover at the output shaft side; the angle sensor input gear is meshed with an angle detection gear arranged on the output shaft and is arranged on an angle sensing shaft of the angle sensor; the angle detection gear is characterized in that a limiting block is arranged on the end face of the angle detection gear, which is close to the shaft end cover, a rotary groove with a non-circumferential structure matched with the limiting block is arranged on the shaft end cover corresponding to the limiting block, and limiting parts are symmetrically arranged at the lower part of the rotary groove. The utility model has the advantages of universal left and right, high assembly efficiency, stable performance and capability of properly decelerating less production cost of intelligent home.

Description

Flip electric damper

Technical Field

The utility model belongs to the technical field of flip electric dampers for smart home, and particularly relates to a flip electric damper.

Background

Along with the development of economy and the improvement of national living standard, the requirements of the national on bathroom electric appliances and even household electric appliances are also higher and higher, and intelligent and automatic products are also more favored in the market nowadays. Thus, the intelligent automation of intelligent toilets, intelligent dishwashers, bowls and washing machines is also becoming higher nowadays, wherein the automatic flip function is one of the appearances of intelligent toilets, intelligent dishwashers, intelligent bowls and intelligent washing machines.

There are many flip electric dampers with driving cover plates in the market today, and the existing electric driven flip damper mainly comprises a housing, a motor for providing power and a speed reducing assembly connected with the motor, and an output shaft, wherein the motor is installed in the housing, and the automatic flip is controlled by a PCB board to control the motion of a gear box combination with the motor to drive the automatic flip of the cover plates, for example, to drive a seat cover and a seat ring of an intelligent toilet.

The existing flip electric damper is required to be connected with an intelligent toilet, an intelligent dish washer, an intelligent bowl washing tank and an intelligent washing machine in the actual assembly process through a mounting sleeve, the mounting sleeve comprises a cavity for accommodating the flip electric damper, the mounting sleeve is fixed at the position corresponding to the flip electric damper through a fastening connecting piece, and a driving shaft of the flip electric damper is connected with a driven flip member after the mounting sleeve is mounted; after market feedback is used for a period of time, abnormal sound occurs, gaps are formed between the shell and the mounting sleeve of the flip electric damper along with use of the flip electric damper, so that abnormal sound is caused, and at present, a spacer is added or glue is applied to the actual assembly type damper, so that time and labor are wasted.

In the actual assembly process, a flip electric damper is generally arranged at two ends of a seat cover, a seat ring or a box cover respectively, and the flip electric damper of the existing design is divided into left and right parts, namely the product has distinction between positive and negative installation in actual use, and an angle detection gear is generally a sector gear, for example, an intelligent household electric drive flip damper which is previously developed by the applicant has the publication number of CN108980288A; the prior art realizes the distinction between forward and reverse by changing the torsion spring, and is marked with a word of left and right for convenient installation in the process of manufacturing products.

Therefore, the utility model designs the flip electric damper which can be directly installed without an installation sleeve and has universality.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides the flip electric damper which is convenient to install, saves the installation space and improves the assembly efficiency.

The utility model is realized in such a way that the flip electric damper comprises a shell, a driving motor arranged in the shell, an output shaft connected with the driving motor and a detection device for detecting the rotation angle of the output shaft, wherein the driving motor is connected with a planetary reduction mechanism; the method is characterized in that: the shell comprises a gear ring shell, a front end cover and a rear end cover which are fixedly arranged at two ends of the gear ring shell, wherein outer connecting parts are symmetrically arranged on the outer wall of the gear ring shell and/or the outer walls of the front end cover and the rear end cover, and mounting holes are formed in the outer connecting parts; a planetary reduction mechanism is arranged in the gear ring shell; the angle detection device is arranged in the rear end cover at the output shaft side; the angle sensor input gear is meshed with an angle detection gear arranged on the output shaft and is arranged on an angle sensing shaft of the angle sensor; a limiting block is arranged on the end face of the angle detection gear close to the shaft end cover side, a rotary groove with a non-circumferential structure matched with the limiting block is arranged on the shaft end cover corresponding to the limiting block, and limiting parts are symmetrically arranged at the lower part of the rotary groove; the limiting blocks are positioned in the rotary groove, and two limiting surfaces of the limiting part at the lower part of the rotary groove are symmetrically arranged relative to the center.

Preferably, the included angle between the two limiting surfaces of the limiting part is 30-80 degrees.

Preferably, the transmission ratio of the angle detection gear to the angle sensor input gear is not more than 1.4.

Preferably, the planetary reduction mechanism is a three-stage planetary reduction mechanism, namely a first-stage planetary reduction mechanism, a second-stage planetary reduction mechanism and a three-stage planetary reduction mechanism; the primary planetary reduction structure comprises a primary planetary carrier connected with the driving motor, and three primary planetary gears arranged on the primary planetary carrier through primary planetary gear shafts, wherein the three primary planetary gears are simultaneously meshed with the primary sun gear and the internal teeth of the gear ring shell; the secondary planetary reduction mechanism comprises a secondary planet carrier, three secondary planet gears on the secondary planet carrier are arranged through secondary planet gear shafts, and the secondary planet gears are simultaneously meshed with the secondary sun gear and the internal teeth of the gear ring shell; the three-stage planetary reduction mechanism comprises a three-stage planetary carrier, and four three-stage planetary gears on the three-stage planetary carrier are arranged through three-stage planetary gear shafts; the three-stage planetary gear is meshed with the three-stage sun gear and the internal teeth of the gear ring shell; the outer circumference of the three-stage planet carrier is integrally provided with an angle detection gear.

Preferably, an overload protection mechanism is arranged in the primary planet carrier or the secondary planet carrier.

Preferably, the overload protection mechanism comprises an annular gear arranged on the primary planet carrier or the secondary planet carrier, an overload protection disc is arranged in the annular gear, a bidirectional overload protection pawl is arranged on the outer circumference of the overload protection disc along the circumferential direction, ratchets meshed with the annular gear of the primary planet carrier or the secondary planet carrier are arranged at the outer end parts of the overload protection pawls, and pawl overload avoiding spaces are formed in the inner side faces of the overload protection pawls.

Preferably, the bottom of the gear ring shell is provided with a reinforcing rib.

Preferably, a vertical plate is arranged in the gear ring shell at the opposite side of the output shaft, a motor mounting chamber is arranged at the lower part of the inner gear ring of the gear ring shell, and a motor shaft mounting hole is arranged on the vertical plate; the electric motor mounting device comprises a motor mounting chamber, a wire harness accommodating cavity is formed below the motor mounting chamber, and a wire harness penetrating hole is formed in the vertical plate corresponding to the wire harness accommodating cavity.

Preferably, a reinforcing rib is arranged between the outer connecting part and the outer wall of the gear ring shell or the front end cover and the rear end cover.

Preferably, the mounting holes are round holes or long holes.

The utility model has the advantages and technical effects that: the traditional driver mounting sleeve is replaced, the assembly efficiency is improved, and meanwhile, parts are omitted, so that the cost is reduced; in addition, the additionally arranged external connecting part can reduce the installation space; the added external connection part is equivalent to the reinforcing rib plate added on the outer wall of the shell, so that the overall strength of the shell is improved, and further, larger torsion force can be borne, and on the other hand, the omitted mounting sleeve can be directly mounted, so that the cost is reduced, and the assembly efficiency is improved. In addition, the traditional arc angle detection gear is matched with the rotary groove which is provided with the non-circumferential structure and matched with the limiting block on the shaft end cover through adjusting the transmission ratio and arranging the limiting block on the end face of the angle detection gear close to the shaft end cover side and the corresponding limiting block, so that large-angle rotation can be realized, the rotation angle is 280-330 degrees, further, a structure can be adopted to realize left and right products, distinguishing marks are not needed during installation and manufacturing, and only the initial output angle of an output shaft is required to be adjusted.

Drawings

FIG. 1 is a schematic view of the structure of embodiment 1 of the present utility model;

FIGS. 2 and 3 are different perspective views of the gear ring housing;

FIG. 4 is a schematic illustration of the ring gear housing with the ring gear housing removed;

fig. 5 and 6 are perspective structural views of a planetary reduction structure;

FIG. 7 is a schematic diagram of an overload protection mechanism;

FIG. 8 is a schematic view of the structure of the angle detecting device;

FIG. 9 is a cross-sectional view A-A of FIG. 8;

FIG. 10 is a schematic perspective view of an angle detecting device;

FIG. 11 is a schematic view of the rear end cap structure;

FIG. 12 is a schematic perspective view of the rear end cap;

FIG. 13 is a schematic structural view of embodiment 2;

fig. 14 and 15 are schematic structural views of embodiment 3;

FIG. 16 is a schematic view of the structure of embodiment 4;

fig. 17 and 18 are schematic structural views of embodiment 5.

In the figure, 10, the housing; 11. a ring gear housing; 101. a vertical plate; 102. a motor installation chamber; 103. a motor shaft mounting hole; 104. arc motor support plate; 105. a wire harness accommodation chamber; 12. a front end cover; 13. a rear end cover; 14. an outer connection portion; 15. a mounting hole; 16. a first reinforcing rib; 17. a second reinforcing rib; 20. a driving motor; 21. driving a motor output gear; 22. a large gear; 23. a pinion gear; 24. a power take-off gearwheel; 30. a planetary reduction mechanism; 310. a primary planetary reduction mechanism; 311. a primary planet carrier; 312. a first-stage sun gear; 313. a first-stage planet wheel; 320. a secondary planetary reduction mechanism; 321. a secondary planet carrier; 322. a second-stage planetary gear; 323. a secondary sun gear; 330. a three-stage planetary reduction mechanism; 331. a primary planet carrier; 332. three-stage planet gears; 333. three-stage sun gears; 335. an angle detection gear; 40. an output shaft; 50. an angle detection device; 51. an angle detection gear; 52. an angle sensor input gear; 53. an angle sensing shaft; 54. a limiting block; 55. a rotary groove; 56. a limit part; 60. overload protection mechanism; 61. an inner gear ring; 62. overload protection disc; 63. a bi-directional overload protection pawl; 64. a ratchet; 65. the pawl is overloaded to avoid the space.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Embodiment 1 referring to fig. 1 to 12, a flip electric damper includes a housing 10, a driving motor 20 installed in the housing, a planetary reduction mechanism 30 connected to the driving motor, an output shaft 40 connected to the planetary reduction mechanism, and an angle detecting device 50 for detecting a rotation angle of the output shaft; the angle detection device is used for judging the rotation angle of the power output shaft, further judging the opening degree of the opening or closing of a passive execution component connected with the power output shaft, and controlling and feeding back the working state of the driving motor through a detected signal, wherein the shell 10 comprises a gear ring shell 11, a front end cover 12 and a rear end cover 13 fixedly arranged at two ends of the gear ring shell, outer connecting parts 14 are symmetrically arranged on the outer wall of the gear ring shell and/or the outer walls of the front end cover and the rear end cover, and mounting holes 15 are formed in the outer connecting parts; the added external connecting part can replace the traditional driver mounting sleeve, so that the assembly efficiency is improved, and meanwhile, parts are omitted, so that the cost is reduced; in addition, the additionally arranged external connecting part can reduce the installation space; the additionally arranged external connection part is equivalent to the reinforcing rib plate added on the outer wall of the shell, so that the overall strength of the shell is improved, further, larger torsion force can be borne, and on the other hand, the installation sleeve which is omitted can be directly installed. A planetary reduction mechanism 30 is arranged in the gear ring shell; the angle detection device 50 is installed in the rear end cover 13 on the output shaft side; an angle sensor input gear 52 engaged with an angle detection gear 51 provided on the output shaft, the angle sensor input gear being mounted on an angle sensor shaft 53 of the angle sensor; the product with this angle sensor input gear and angle sensor detect function can be the gear potentiometer structure, belongs to well-known mature product, mainly includes potentiometre gear (angle sensor input gear), PCB board, installs the angle sensor on the board, and this product operation is stable, can directly purchase on the market and use, reduces research and development cost. A limiting block 54 is arranged on the end face of the angle detection gear close to the shaft end cover side, the limiting block can occupy 2-3 teeth of the angle detection gear, the angle detection gear is of a complete tooth structure, a rotary groove 55 of a non-circumferential structure matched with the limiting block is arranged on the shaft end cover corresponding to the limiting block, and limiting parts 56 are symmetrically arranged at the lower part of the rotary groove; the limiting blocks are positioned in the rotary groove, and two limiting surfaces of the limiting part at the lower part of the rotary groove are symmetrically arranged relative to the center.

Preferably, the included angle alpha of the two limiting surfaces of the limiting part is 30-80 degrees, the large-angle rotation can be realized by adopting the structure, the rotation angle is 280-330 degrees, further, the left and right products can be realized by adopting the structure, distinguishing marks are not needed during installation and manufacturing, and only the initial output angle of the output shaft is needed to be adjusted.

Preferably, the transmission ratio of the angle detection gear to the angle sensor input gear is not more than 1.4.

If the transmission ratio is larger than 1.4, the left and right are distinguished according to the requirement of selecting the rotation angle, otherwise, the purpose of left and right general use can not be achieved on the same product. The transmission ratio of the embodiment is optimally 1.2, the number of teeth of the angle detection gear is 36 teeth, and the number of teeth of the input gear of the angle sensor is 30 teeth.

Preferably, the planetary reduction mechanism is a three-stage planetary reduction mechanism 30, namely a first-stage planetary reduction mechanism 310, a second-stage planetary reduction mechanism 320 and a three-stage planetary reduction mechanism 330;

the primary planetary reduction structure comprises a primary planetary carrier 311, the primary planetary carrier is connected with a driving motor through a power input gear pair, the power input gear pair comprises a large gear 22 meshed with an output gear of the motor and a small gear 23 coaxial with the large gear, the small gear is meshed with the power output large gear 24, the power output large gear 24 is meshed with the inner teeth of a gear ring shell, and the power output large gear is used as a power input gear pair to input power to the primary planetary reduction mechanism; three primary planet gears 312 mounted on a primary planet carrier through primary planet wheel shafts, the three primary planet gears simultaneously engaging primary sun gear 313 mounted on the power take-off gearwheel and the internal teeth of the gear ring housing; the secondary planetary reduction mechanism 320 comprises a secondary planet carrier 321, and three secondary planet gears 322 on the secondary planet carrier are installed through secondary planet gear shafts and are meshed with the secondary sun gear 323 and the inner teeth of the gear ring shell; the three-stage planetary reduction mechanism 330 comprises a three-stage planetary carrier 331, and four three-stage planetary wheels 333 on the three-stage planetary carrier are installed through three-stage planetary wheel shafts 332; the three-stage planetary gears engage the three-stage sun gear 334 and the internal teeth of the ring gear housing; the outer circumference of the three-stage planet carrier is integrally provided with an angle detection gear 335.

The primary planetary reduction structure comprises a primary planetary carrier 311 connected with a driving motor, specifically, the primary planetary carrier is connected with the primary planetary carrier through a power input gear pair, the power input gear pair comprises a large gear 22 meshed with an output gear of the motor and a small gear 23 coaxial with the large gear, and the small gear is used as a power input gear pair to input power to the primary planetary reduction mechanism; three primary planet gears 312 mounted on the primary planet carrier through primary planet wheel shafts, the three primary planet gears simultaneously engaging the primary sun gear 313 and the internal teeth of the ring gear housing; the secondary planetary reduction mechanism 320 comprises a secondary planet carrier 321, and three secondary planet gears 322 on the secondary planet carrier are installed through secondary planet gear shafts and are meshed with the secondary sun gear 323 and the inner teeth of the gear ring shell; the three-stage planetary reduction mechanism 330 comprises a three-stage planetary carrier 331, and four three-stage planetary wheels 333 on the three-stage planetary carrier are installed through three-stage planetary wheel shafts 332; the three-stage planetary gears engage the three-stage sun gear 334 and the internal teeth of the ring gear housing; the outer circumference of the three-stage planet carrier is integrally provided with an angle detection gear 335.

By adopting the matching structure, the primary planetary reduction mechanism and the secondary planetary reduction mechanism adopt helical gear meshing structures, so that meshing performance is good, transmission is stable, noise is relatively small, the overlap ratio is large, the load of each pair of gears is reduced, and the bearing capacity of the gears is improved; in addition, the minimum number of teeth without undercut is reduced, so that the structural design is more compact, but the axial force is added, the axial force is overcome to prevent the axial movement of the power output shaft, the three-stage planetary reduction mechanism adopts a straight tooth meshing structure, the problem of axial movement caused by the adoption of inclined teeth in the previous two stages is solved, meanwhile, the three-stage planetary reduction mechanism is matched with the retainer ring 41 or additionally provided with the retainer ring for limiting, and basically no axial movement exists in the experimental process of the service life, so that the running stability is improved, and the service life of parts is prolonged.

Preferably, the primary planet carrier or the secondary planet carrier is internally provided with an overload protection mechanism 60.

Preferably, the overload protection mechanism comprises an annular gear 61 arranged on the primary planet carrier or the secondary planet carrier, an overload protection disc 62 is arranged in the annular gear, a bidirectional overload protection pawl 63 is arranged on the outer circumference of the overload protection disc along the circumferential direction, ratchets 64 meshed with the annular gear of the primary planet carrier or the secondary planet carrier are arranged at the outer end parts of the overload protection pawls, and pawl overload avoiding spaces 65 are formed in the inner side faces of the overload protection pawls. The overload protection mechanism completely adopts a mechanical overload protection structure, is reliable and long in service life, and can not cause failure due to external use environment compared with an overload protection device such as an electric clutch and the like; therefore, the overload protection mechanism of the structure is not limited by the installation environment in actual use, and the application field and place of the product are enlarged.

Preferably, the bottom of ring gear casing is equipped with first strengthening rib 16, has increased the intensity of ring gear casing, prevents that the ring gear casing from sending the distortion in the operation process, avoids causing ring gear casing and front end housing and rear end housing junction to appear the problem of fracture.

Preferably, a vertical plate 101 is arranged in the gear ring shell at the opposite side of the output shaft 40, a motor mounting chamber 102 is arranged at the lower part of the inner gear ring of the gear ring shell, and a motor shaft mounting hole 103 is arranged on the vertical plate; the electric motor mounting chamber is internally provided with the arc-shaped motor support plate 104, the lower part of the arc-shaped motor support plate forms a wire harness accommodating cavity 105, the vertical plate is provided with a wire harness penetrating hole 106 corresponding to the wire harness accommodating cavity, and then the wire harness mounting mode is optimized, and the assembly efficiency is improved.

Preferably, a second reinforcing rib 17 is arranged between the outer connecting part and the outer wall of the gear ring shell or the front end cover and the rear end cover.

Preferably, the mounting holes are round holes or long holes. By adopting the long hole structure, the installation position can be adjusted during actual installation, and the application range of the product is further enlarged.

In the structure, the front end cover and the rear end cover are connected with the gear ring shell through fasteners or in a hot melting or laser welding mode. The front end cover and the rear end cover are both provided with positioning spigots, so that the installation accuracy is guaranteed, the tissue efficiency is improved, meanwhile, the stress of the installation positions of the front end cover, the rear end cover and the gear ring shell is also improved, the situation that cracking can not occur at the installation splicing position after bearing is guaranteed, and the stability of a product is improved.

The flip electric damper may be configured as the following embodiments according to the actual installation requirements, but is not limited thereto.

In embodiment 2, referring to fig. 13, two mutually independent outer connecting portions are disposed on the same side of the outer wall of the ring gear housing.

In embodiment 3, referring to fig. 14 and 15, the same side of the front end cover and the rear end cover is provided with an external connection portion.

In embodiment 4, referring to fig. 16, the outer connecting portions are simultaneously provided on the ring gear housing, the front end cover and the rear end cover.

In embodiment 5, referring to fig. 17 and 18, one side of the front end cover and the rear end cover is provided with an external connection portion on the other side of the ring gear housing.

The flip electric damper has the advantages of high assembly efficiency, long service life and capability of properly decelerating less production cost of intelligent home.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a flip electric damper, includes the casing, installs driving motor in the casing, connects driving motor and connects planetary reduction gears, and the output shaft that planetary reduction gears connects and the angle detection device that is used for detecting output shaft turned angle; the method is characterized in that: the shell comprises a gear ring shell, a front end cover and a rear end cover which are fixedly arranged at two ends of the gear ring shell, wherein outer connecting parts are symmetrically arranged on the outer wall of the gear ring shell and/or the outer walls of the front end cover and the rear end cover, and mounting holes are formed in the outer connecting parts; a planetary reduction mechanism is arranged in the gear ring shell; the angle detection device is arranged in the rear end cover at the output shaft side; the angle sensor input gear is meshed with an angle detection gear arranged on the output shaft and is arranged on an angle sensing shaft of the angle sensor; a limiting block is arranged on the end face of the angle detection gear close to the shaft end cover side, a rotary groove with a non-circumferential structure matched with the limiting block is arranged on the shaft end cover corresponding to the limiting block, and limiting parts are symmetrically arranged at the lower part of the rotary groove; the limiting blocks are positioned in the rotary groove, and two limiting surfaces of the limiting part at the lower part of the rotary groove are symmetrically arranged relative to the center.

2. The flip-top electric damper of claim 1, wherein: the included angle between the two limiting surfaces of the limiting part is 30-80 degrees.

3. The flip-top electric damper of claim 1, wherein: the transmission ratio of the angle detection gear to the angle sensor input gear is not more than 1.4.

4. The flip-top electric damper of claim 1, wherein: the planetary reduction mechanism is a three-stage planetary reduction mechanism, namely a first-stage planetary reduction mechanism, a second-stage planetary reduction mechanism and a three-stage planetary reduction mechanism;

the primary planetary reduction structure comprises a primary planetary carrier connected with the driving motor, and three primary planetary gears arranged on the primary planetary carrier through primary planetary gear shafts, wherein the three primary planetary gears are simultaneously meshed with the primary sun gear and the internal teeth of the gear ring shell;

the secondary planetary reduction mechanism comprises a secondary planet carrier, three secondary planet gears on the secondary planet carrier are arranged through secondary planet gear shafts, and the secondary planet gears are simultaneously meshed with the secondary sun gear and the internal teeth of the gear ring shell;

the three-stage planetary reduction mechanism comprises a three-stage planetary carrier, and four three-stage planetary gears on the three-stage planetary carrier are arranged through three-stage planetary gear shafts; the three-stage planetary gear is meshed with the three-stage sun gear and the internal teeth of the gear ring shell, and an angle detection gear is arranged on the outer circumference of the three-stage planetary carrier.

5. The planetary reduction mechanism for an electrically driven flip damper as defined in claim 4, wherein: an overload protection mechanism is arranged in the primary planet carrier or the secondary planet carrier.

6. The planetary reduction mechanism for an electrically driven flip damper as defined in claim 5, wherein: the overload protection mechanism comprises an inner gear ring arranged on the primary planet carrier or the secondary planet carrier, an overload protection disc is arranged in the inner gear ring, a bidirectional overload protection pawl is arranged on the outer circumference of the overload protection disc along the circumferential direction, ratchets meshed with the inner gear ring of the primary planet carrier or the secondary planet carrier are arranged at the outer end parts of the overload protection pawls, and pawl overload avoidance spaces are formed in the inner side faces of the overload protection pawls.

7. The planetary reduction mechanism for an electrically driven flip damper as defined in claim 5, wherein: the bottom of the gear ring shell is provided with a reinforcing rib.

8. The flip-top electric damper of claim 1, wherein: a vertical plate is arranged in the gear ring shell at the opposite side of the output shaft, a motor mounting chamber is arranged at the lower part of the inner gear ring of the gear ring shell, and a motor shaft mounting hole is arranged on the vertical plate; the electric motor mounting device comprises a motor mounting chamber, a wire harness accommodating cavity is formed below the motor mounting chamber, and a wire harness penetrating hole is formed in the vertical plate corresponding to the wire harness accommodating cavity.

9. The flip-top electric damper of claim 1, wherein: reinforcing ribs are arranged between the outer connecting part and the outer walls of the gear ring shell or the front end cover and the rear end cover.

10. The flip-top electric damper of claim 1, wherein: the mounting holes are round holes or long holes.