TWM535761U - Unidirectional rotary damper - Google Patents

Description

One-way rotary damper

This creation is a damper, especially a one-way rotary damper.

Rotary damper, such as the Rotary Damper disclosed in the Republic of China Patent Bulletin No. M265499, allows the product to achieve gentle mechanical movement and improve product quality and longevity. The rotary damper varies its torque according to the change of the swing speed and the ambient temperature. It is widely used in the flipping of small flips, gift boxes, window safety handles, floor bomb sockets, etc., which can effectively reduce the noise generated when the product is used. The spring can make the movement of the cover more compliant. The current common rotary damper has the inability to withstand the impact and has a short service life. The damping force of the damping oil alone is used to dampen the thrust and the damping effect is weaker and the high temperature is low. A failure condition occurs during the test and the damping is unstable. Therefore, how to improve the above-mentioned deficiencies, that is, the technical difficulties that the applicant of this case wants to solve.

In view of the lack of practice, the purpose of this creation is to develop a situation in which the impact is strong and the damping effect is obvious, and the failure is not caused in the high and low temperature test, and the downward resistance is generated when the structure is rotated by the spiral structure. The one-way rotary damper that rotates and the greater the speed force, the stronger the damping.

In order to achieve the above objectives, the present invention provides a one-way rotary damper, The utility model comprises: a casing, the casing is a bottom closed barrel; a rotating plastic part, the rotating plastic component is disposed in the casing, the center of the rotating plastic component is covered with a one-way bearing; a rotating shaft, the rotation One end of the shaft is connected to the drive shaft through the center of the one-way bearing, and the other end of the rotary shaft is connected to the center of a gear through a gland; a rubber insert is disposed on the rotary plastic part Between the outer casing and the outer casing, the rubber insert is provided with a plurality of oblique ribs disposed on the surface of the rotating plastic member, and the surface of the rotating plastic member is provided with a plurality of inclined grooves corresponding to the ridges, and the rubber insert contacts the rotating plastic member The face is a bevel.

The bottom of the rotating plastic part is provided with a plurality of grooves for damping oil circulation and storage.

Therefore, the one-way rotary damper of the present invention has an impact resistance, and the damping effect is effective according to the internal rubber insert and the damping oil, so that the damping effect is obvious, and the failure condition does not occur in the high and low temperature test. When rotated by the structure of the spiral, downward resistance is generated. According to the principle of acceleration, the speed at which the creation reaches the speed of rotation is greater and the damping is stronger.

[this creation]

1‧‧‧Shell

2‧‧‧Rubber inserts

20‧‧ ‧ ribs

3‧‧‧Rotating plastic parts

30‧‧‧ chute

4‧‧  one-way bearing

5‧‧‧Rotary axis

6‧‧‧Gland

7‧‧‧ Gears

8‧‧‧ trench

The first figure is a schematic diagram of the combined structure of the one-way rotary damper of the preferred embodiment of the present invention.

The second drawing is a schematic exploded view of the first figure of the preferred embodiment of the present invention.

The third figure is a schematic view of the assembly of the rubber insert and the rotary plastic part of the preferred embodiment of the present invention.

In order to enable your review board to clearly understand the content of this work, please refer to the following examples with diagrams and symbols, please refer to it.

Referring to the first and second figures, this creation provides a one-way rotational damping The utility model comprises: a casing 1, a rubber insert 2, a rotating plastic part 3, a one-way bearing 4, a rotating shaft 5, a pressing cover 6, and a gear 7.

The outer casing 1 is a cylindrical body closed at the bottom end. The axially rotating rotating plastic part 3 is disposed in the outer casing 1. The center of the rotating plastic part 3 is covered with the one-way bearing 4, and one end of the rotating shaft 5 passes through The center of the one-way bearing 4 is connected to the drive shaft. The other end of the rotary shaft 5 is connected to the center of the gear 7 through the gland 6 . The rubber insert 2 is disposed on the rotary plastic part 3 and the outer casing 1 . The rubber insert 2 is provided with a plurality of oblique ribs 20 disposed obliquely, and the surface of the rotating plastic member 3 is provided with a plurality of chutes 30 corresponding to the ridges 20 such that the rubber insert 2 and the rotation The contact surface of the plastic part 3 is a sloped surface.

The rubber insert 2 and the rotating plastic part 3 are coated with a layer of damping oil, one of which is to increase the damping effect, and the second is to increase the life of the rubber insert 2 to increase the service life of the damper. Please refer to the third figure, the bottom of the rotating plastic part 3 is provided with a plurality of grooves 8 for damping oil circulation and storage, the function of which is to store the damping oil and make the damping oil smear more uniform.

Please continue to refer to the first to third figures, wherein the direction of the specific rotation of the rotating shaft 5 is the direction in which the one-way bearing 4 is rotatable, and the rotating shaft 5 rotates without damping inside the one-way bearing 4. The direction in which the rotating shaft 5 rotates is a direction in which the one-way bearing 4 is non-rotatable, and the rotating shaft 5 is tightly bitten with the one-way bearing 4, thereby driving the one-way bearing 4 to rotate, the one-way bearing 4 and The rotary plastic part 3 is wrapped together, so that the rotary plastic part 3 is also rotated. When the rotary plastic part 3 is caught by the rotation of the rubber insert 2, the rubber insert 2 is wrinkled due to the frictional force, and friction with the outer casing 1 generates resistance.

Furthermore, when the rotating plastic part 3 drives the rubber insert 2 to rotate, since the contact surface of the rotating plastic part 3 with the rubber insert 2 is a slope, the direction of the force acting on the rubber insert 2 is perpendicular to the inclined surface, according to Mechanical principle, this force can form forces in two directions, which is the direct action to drive the rotation The force of rotation of the shaft 5, and the other is a downward force, which directly acts to increase the frictional resistance of the bottom of the rotating plastic part 3 with the outer casing 1.

Therefore, the one-way rotary damper of the present invention has an impact resistance, and the damping effect is effective according to the inner rubber insert 2 and the damping oil, so that the damping effect is obvious, and the failure does not occur in the high and low temperature test. The situation, when rotated by the structure of the spiral, will produce downward resistance. According to the principle of acceleration, the speed of the creation of the creation can be increased and the damping is stronger.

The above discussion is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, the equivalent shape, structure or combination of changes made in the spirit and scope of the present invention should be It is covered by the patent application scope of this creation.

1‧‧‧Shell

2‧‧‧Rubber inserts

20‧‧ ‧ ribs

3‧‧‧Rotating plastic parts

30‧‧‧ chute

4‧‧  one-way bearing

5‧‧‧Rotary axis

6‧‧‧Gland

7‧‧‧ Gears

Claims (2)

A unidirectional rotary damper comprising: a casing, the casing is a bottom closed barrel; a rotating plastic part, the rotating plastic part is disposed in the casing, and the center of the rotating plastic part is provided with a one-way a rotating shaft having one end passing through the center of the one-way bearing and its driving connection, the other end of the rotating shaft is connected to a center of a gear through a gland; a rubber insert, the rubber is embedded The rubber insert is disposed on the rotating insert and the plurality of ribs disposed obliquely, and the surface of the rotating plastic member is provided with a plurality of chutes corresponding to the ridges, and the rubber is embedded The contact surface of the piece with the rotating plastic part is a sloped surface. The one-way rotary damper of claim 1, wherein the bottom of the rotary plastic part is provided with a plurality of grooves for damping oil to circulate and store.