One-way rotating damper based on gear transmission

Abstract

The utility model discloses a one-way rotating damper based on gear transmission. The problems that an existing one-way rotating damper is driven only through a sliding groove, and slipping is prone to occurring due to the absence of a locking structure are mainly solved. The containing groove is formed in the rotating disc, and a first transmission part is arranged on the circumferential inner wall of the containing groove; the connecting disc is rotatably mounted in the accommodating groove; the transmission block is arranged on the axial end face of the connecting disc; the linkage disc is arranged on the portion, stretching into the shell, of the rotating shaft, and first transmission teeth are arranged on the circumferential outer wall of the linkage disc; the outer wall of one side of the sliding block is provided with second transmission teeth meshed with the first transmission teeth, the outer wall of the other side of the sliding block is provided with a second transmission part matched with the first transmission part, the sliding block is provided with a sliding groove matched with the transmission block, and the sliding groove is parallel to the tangent line of the linkage disc. The one-way rotating damper based on gear transmission is driven through a gear structure, has certain locking capacity, and prevents slipping and dislocation.

Description

TECHNICAL FIELD

[0001] The utility model relates to damper field, concretely relates to a one -way rotation damper based on gear drive. BACKGROUND

[0002] The Chinese patent with the application number 2025217175168 provides a one -way rotation damper, in actual use, and there is no locking structure and easy to appear skidding and lead to misplacement by simply driving through the chute. UTILITY MODEL CONTENTS

[0003] In order to overcome the insufficient of the background art, the utility model provides a one -way rotation damper based on gear drive, mainly solves the problem that the one -way rotation damper of present simply drives through the chute and there is no locking structure and easy to appear skidding.

[0004] The technical scheme of the utility model provides,

[0005] A one -way rotation damper based on gear drive, including the casing, the rotating disc and the rotating shaft, the rotating disc rotatablely installs in the casing, the casing has the damping oil for providing the resistance when the rotating disc rotates, still includes

[0006] The accommodating groove is arranged on the rotating disc, and the circumferential inner wall is provided with a first transmission part;

[0007] The connecting disc is rotatablely installed in the accommodating groove;

[0008] The transmission block is arranged on the axial end surface of the connecting disc;

[0009] The linkage disc is arranged on the rotating shaft that extends into the casing, and the circumferential outer wall of the linkage disc is provided with a first transmission gear;

[0010] The slider is provided with a second transmission gear that is engaged with the first transmission gear on one side outer wall, and a second transmission part that is matched with the first transmission part on the other side outer wall, and the slider is provided with a sliding groove that is matched with the transmission block, and the sliding groove is parallelly arranged with the tangent line of the linkage disc;

[0011] When the linkage disc rotates, the slider is driven to advance or retreat to drive the second transmission part to contact or separate from the first transmission part.

[0012] The sliding groove is a straight groove.

[0013] The first transmission part is the first transmission gear arranged on the inner wall of the accommodating groove, and the second transmission part is the second transmission gear arranged on the outer wall of the slider.

[0014] The slider is provided with three.

[0015] The sealing ring is arranged between the circumferential outer wall of the rotating disc and the inner wall of the shell.

[0016] The circumferential outer wall of the rotating disc is provided with a convex ring, and the sealing ring is arranged on the upper end face of the convex ring.

[0017] The connecting disc is provided with a central shaft, and the linkage disc is provided with a shaft hole rotatably connected with the central shaft.

[0018] The outer wall of the rotating disc is provided with a plurality of sinking grooves.

[0019] The utility model discloses a one -way rotation damper based on gear drive has the advantages of the following: the utility model discloses a one -way rotation damper based on gear drive, through gear structure transmission, has certain locking ability, prevents skidding misplacement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the sectional view schematic drawing of an embodiment of the utility model.

[0021] Figure 2 It is the sectional view schematic drawing of an embodiment of the utility model.

[0022] Figure 3 It is the explosion schematic drawing of an embodiment of the utility model.

[0023] Figure 4 It is the explosion schematic drawing of an embodiment of the utility model.

[0024] Figure 5 It is the internal schematic drawing of the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model discloses a one -way rotation damper based on gear drive has the advantages of the following: the utility model discloses a one -way rotation damper based on gear drive, through gear structure transmission, has certain locking ability, prevents skidding misplacement.

[0026] The basic principle of the rotary damper is introduced. The shell is provided with damping oil for providing resistance to the rotating disc. When the rotating shaft rotates forward (clockwise or counterclockwise, which can be achieved by adjusting the installation position of the sliding block or the position of the transmission gear), the sum of the friction between the rotating shaft and the connecting disc and the resistance when the gear rotates is less than the static friction between the connecting disc and the rotating disc. If necessary, a protrusion can be provided at the bottom of the connecting disc to increase the friction between the connecting disc and the rotating disc. In this way, the connecting disc does not move when the rotating shaft is just rotating, and only after the sliding block is engaged will the rotating disc rotate together. The sliding block is advanced by the gear structure, and the tangent line of the sliding slot and the linkage disc is parallel, so that the sliding block can only move forward and backward. When the sliding block is at the bottom, the second transmission part on the outer wall of the sliding block contacts the first transmission part of the accommodating slot to drive the rotating disc to rotate. At this time, the resistance of the damping oil needs to be overcome to rotate. It is a damping situation. When reversing, the rotating shaft drives the sliding block to retreat through the gear structure, so that the second transmission part is separated from the first transmission part, and the rotating disc is no longer linked with the rotating shaft. At this time, the rotating shaft does not need to overcome the resistance of the damping oil, and one-way damping is achieved.

[0027] In this embodiment, as shown in the figure, the sliding slot is a straight slot. The operation is more stable.

[0028] In this embodiment, as shown in the figure, the first transmission part is a first transmission gear provided on the inner wall of the accommodating slot, and the second transmission part is a second transmission gear provided on the outer wall of the sliding block. The two are engaged and transmitted by the gear, which is more stable.

[0029] In this embodiment, as shown in the figure, the sliding block is provided with three. It is more stable and reasonable to utilize the internal space.

[0030] In this embodiment, as shown in the figure, a sealing ring 55 is arranged between the circumferential outer wall of the rotating disc and the inner wall of the shell. The damping oil is prevented from leaking out.

[0031] In this embodiment, as shown in the figure, the circumferential outer wall of the rotating disc is provided with a convex ring 24, and the sealing ring is arranged on the upper end face of the convex ring.

[0032] In this embodiment, as shown in the figure, a central shaft 45 is arranged on the connecting disc, and an axle hole 33 rotatably connected with the central shaft is arranged on the linkage disc. The two are gap-fitted to realize stable rotation of the rotating shaft. Similarly, another rotating shaft is arranged in the shell to cooperate with the rotating disc to realize rotation of the rotating disc. It is prior art and will not be described in detail.

[0033] In this embodiment, as shown in the figure, a plurality of recesses 26 are arranged on the outer wall of the rotating disc. The contact area with the damping oil is increased.

[0034] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0035] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0036] The embodiments described with reference to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model. The embodiments should not be regarded as limiting the utility model, but any improvement made on the basis of the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. A unidirectional rotary damper based on gear transmission, comprising a housing, a turntable, and a rotating shaft, wherein the turntable is rotatably mounted within the housing, and the housing contains damping oil that provides resistance to the rotation of the turntable, characterized in that: Also includes A receiving groove is provided on the turntable, and a first transmission part is provided on its circumferential inner wall; The connecting plate is rotatably installed in the receiving groove; A transmission block is disposed on the axial end face of the connecting disc; A linkage disc is mounted on a rotating shaft that extends into the housing, and the outer circumferential wall of the linkage disc is provided with a first transmission tooth; The slider has a second transmission tooth on one outer wall that meshes with the first transmission tooth, and a second transmission part on the other outer wall that cooperates with the first transmission part. The slider also has a groove that cooperates with the transmission block. When the linkage disk rotates, it drives the slider to move forward or backward, thereby causing the second transmission part to contact or separate from the first transmission part.

2. A unidirectional rotary damper based on gear transmission according to claim 1, characterized in that: The slide is arranged parallel to the tangent of the linkage plate.

3. A unidirectional rotary damper based on gear transmission according to claim 1, characterized in that: The first transmission part is a first transmission tooth provided on the inner wall of the receiving groove, and the second transmission part is a second transmission tooth provided on the outer wall of the slider.

4. A unidirectional rotary damper based on gear transmission according to claim 1, characterized in that: There are three sliders.

5. A unidirectional rotary damper based on gear transmission according to any one of claims 1-4, characterized in that: A sealing ring is provided between the outer circumferential wall of the turntable and the inner wall of the housing.

6. A unidirectional rotary damper based on gear transmission according to claim 5, characterized in that: The turntable has a convex ring on its circumferential outer wall, and the sealing ring is located on the upper end face of the convex ring.

7. A unidirectional rotary damper based on gear transmission according to claim 1, characterized in that: The connecting plate is provided with a central shaft, and the linkage plate is provided with a shaft hole that can be rotatably connected to the central shaft.

8. A unidirectional rotary damper based on gear transmission according to claim 1, characterized in that: The outer wall of the turntable is provided with several grooves.

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