Rotary damper

Abstract

The utility model relates to a rotary damper which comprises a damping seat, the damping seat is provided with a channel, a damping core shaft and a damping element arranged on the damping core shaft are inserted in the channel, the damping seat is further provided with a door plate bouncing component, and the door plate bouncing component is provided with an elastic energy storage part which is fixedly supported on the damping seat and can elastically store energy. The bounce-off output end protrudes out of the damping seat in the radial direction of the damping mandrel so that external equipment can make contact with the bounce-off output end, and the bounce-off output end is correspondingly matched with the elastic energy storage part so that elastic energy stored by the elastic energy storage part can be output through the bounce-off output end, and the bounce-off output end drives the elastic energy stored by the elastic energy storage part. And a self-bouncing function of self-bouncing force required by automatic bouncing of the two parts is provided.

Description

Technical Field

[0001] This utility model relates to dampers. Background Technology

[0002] A damper is a device that provides resistance to motion and reduces kinetic energy; it is widely used in door hinges. Traditional dampers only have a damping function and are therefore single-function. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a damper that can provide a spring-opening function.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A rotary damper includes a damping seat with a channel in which a damping mandrel and a damping element disposed on the damping mandrel are inserted. The damping seat is characterized by having a door-opening component, which has an elastic energy storage portion fixedly supported on the damping seat and capable of elastic energy storage, and a door-opening output end protruding from the damping seat along the radial direction of the damping mandrel for contact with external equipment. The door-opening output end corresponds to and cooperates with the elastic energy storage portion to realize the output of the elastic energy stored in the elastic energy storage portion via the door-opening output end and the driving of the elastic energy storage portion by the door-opening output end.

[0006] Preferably, the damping seat has an elastic component assembly seat at its tail end along the axial direction of the damping spindle, and the door panel spring-opening component is mounted on the elastic component assembly seat.

[0007] Preferably, the door panel spring-opening component is a torsion spring, which includes a helical spring coil, an elastic support arm extending from the helical spring coil, and a driving torsion arm. The helical spring coil and the elastic support arm constitute the elastic energy storage part, and the driving torsion arm constitutes the spring-opening output end. The elastic component mounting base is provided with a groove for inserting the helical spring coil and a spring fixing shaft passing through the groove. The helical spring coil is fitted on the spring fixing shaft, and the elastic support arm is supported on the elastic component mounting base.

[0008] Preferably, the torsion spring has two helical coils, each extending with an elastic support arm and a drive torsion arm, and the two drive torsion arms are integrally formed and connected to form a spring-opening output end.

[0009] Preferably, the damping mandrel extends into a plug-in shaft with a protruding channel, and the damping seat is provided with a plug-in end corresponding to one end of the protruding channel of the damping mandrel, and the plug-in end has a locking structure that locks the rotation direction of the component plugged in with it.

[0010] Preferably, the insertion shaft has screw holes along the radial direction.

[0011] Preferably, the connector includes a notch formed by the damping seat end recessed along the damping mandrel axis and a protruding block protruding relative to the notch, and the protruding block constitutes a locking structure.

[0012] Preferably, the damping mandrel is provided with an annular anti-disengagement groove, and the damping seat is provided with a transverse pin, which is inserted into the anti-disengagement groove.

[0013] The rotary damper provided by this utility model supports a door panel spring-opening component in a damping seat. It has a self-springing function, providing the self-springing force required for the automatic spring-opening of two components (such as a door panel and a door frame, or the automatic spring-opening of the door panel). Specifically, the door panel presses against the driving torsion arm of a torsion spring, the torsion spring stores energy, and when the door panel is opened, the torsion spring is released, driving the torsion arm to spring the door panel open. The overall structure is simple and compact, and the operation is stable and reliable. Furthermore, an elastic component assembly seat is formed at the axial end of the damping seat along the damping spindle, providing an installation arrangement for the door panel spring-opening component. The structure is simple, and processing and assembly are convenient. Specifically, the installation structure of the torsion spring has the advantage of being compact; the torsion spring does not need to overcome spring force during installation, making assembly simple and convenient. A mating structure is formed on the damping seat and at the same end of the damping spindle, facilitating the combination of the damper with the corresponding hinge components, and the specific mating structure is simple.

[0014] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a perspective view of the rotary damper of this utility model;

[0016] Figure 2 This is an exploded view of the rotary damper of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating damper of this utility model. Detailed Implementation

[0018] See appendix Figures 1-3This utility model discloses a rotary damper, including a damping seat 1, the damping seat 1 having a channel 11, a damping spindle 2 and a damping element 3 disposed on the damping spindle 2 are inserted in the channel 11, the damping seat 1 is also provided with a door panel spring-opening component 4, the door panel spring-opening component 4 has an elastic energy storage part that is fixedly supported on the damping seat 1 and can elastically store energy, and a spring-opening output end 41 that protrudes from the damping seat 1 in the radial direction of the damping spindle 2 for contact with external equipment. The spring-opening output end 41 corresponds to and cooperates with the elastic energy storage part to realize the elastic energy storage of the elastic energy storage part is output through the spring-opening output end 41 and the spring-opening output end 41 drives the elastic energy storage of the elastic energy storage part. To facilitate the description of the usage of this utility model, taking the application of the rotary damper on a door hinge as an example, when the door is closed, the door presses against the spring-opening output end of the door panel spring-opening component, thereby forcing the elastic energy storage part to store energy. When the door is unlocked, the spring-opening output end, under the elastic energy storage capacity of the elastic energy storage part, pushes the door panel open automatically. An annular anti-disengagement groove 21 is provided on the damping spindle 2, and a transverse pin 5 is provided on the damping seat 1. The transverse pin 5 is inserted into the anti-disengagement groove 21, so that the damping spindle cannot be pulled out of the channel due to the obstruction of the transverse pin.

[0019] An elastic component assembly seat 12 is provided at the tail end of the damping seat 1 along the axial direction of the damping spindle 2, and the door panel spring-opening component 4 is mounted on the elastic component assembly seat 12. The tail end of the damping seat is specifically provided for the installation of the door panel spring-opening component, avoiding the assembly position of the damping element and simplifying the difficulty of the assembly structure design.

[0020] In this specific embodiment, the door panel spring-opening component 4 is a torsion spring, which includes a helical spring coil 42, an elastic support arm 43 extending from the helical spring coil 42, and a driving torsion arm. The helical spring coil 42 and the elastic support arm 43 constitute the elastic energy storage part, and the driving torsion arm constitutes the spring-opening output end 41. The elastic component mounting base 12 is provided with a groove 121 for inserting the helical spring coil 42 and a spring fixing shaft 13 passing through the groove 121. The helical spring coil 42 is fitted on the spring fixing shaft, and the elastic support arm 43 is supported on the elastic component mounting base 12. The torsion spring has two helical spring coils 42, each of which extends with an elastic support arm 43 and a driving torsion arm, and the two driving torsion arms are integrally formed and connected to form the spring-opening output end 41. The torsion spring has a simple structure, is easy and convenient to assemble, and has a compact structure after assembly. The torsion spring adopts a double helical spring coil design, and the two integrally connected driving torsion arms can form better contact with the door panel and provide more reliable elastic force.

[0021] The damping spindle 2 extends into a plug-in shaft 22 with a protruding channel. The damping seat 1 has a plug-in end corresponding to one end of the protruding channel of the damping spindle 2, and the plug-in end has a locking structure that locks the rotational direction of the component it plugs into. The damper directly engages with the hinge via a plug-in connection, facilitating assembly and use. A screw hole 221 is radially provided on the plug-in shaft 22. The plug-in end includes a notch 14 formed by the axial recess of the damping seat 1 along the damping spindle 2, and a protruding insert 15 protruding from the notch 14, with the protruding insert 15 constituting the locking structure.

Claims

1. A rotary damper, comprising a damping seat, the damping seat having a channel, a damping mandrel and a damping element arranged on the damping mandrel inserted in the channel, characterized in that: The damping seat is also provided with a door panel pop-up component, which has an elastic energy storage part fixedly supported on the damping seat and capable of elastically storing energy, and a pop-up output end protruding from the damping seat in the radial direction of the damping core shaft for contact with external equipment. The pop-up output end corresponds to the elastic energy storage part to achieve the output of the elastic energy stored in the elastic energy storage part via the pop-up output end and the pop-up output end drives the elastic energy storage part to store elastic energy.

2. The rotary damper according to claim 1, characterized in that: An elastic component assembly seat is provided at the rear end of the damping seat along the axial direction of the damping core shaft, and the door panel spring-opening component is installed on the elastic component assembly seat.

3. The rotary damper according to claim 2, characterized in that: The door panel pop-up component is a torsion spring, which includes a spiral spring coil, an elastic support arm extending from the spiral spring coil, and a driving torsion arm. The spiral spring coil and the elastic support arm constitute the elastic energy storage part, and the driving torsion arm constitutes the pop-up output end. The elastic component assembly seat is provided with a groove for the spiral spring coil to be placed in and a spring fixing shaft passing through the groove. The spiral spring coil is mounted on the spring fixing shaft, and the elastic support arm is supported on the elastic component assembly seat.

4. The rotary damper according to claim 3, characterized in that: The torsion spring has two spiral spring coils, and elastic support arms and driving torsion arms are extended from the two spiral spring coils. The two driving torsion arms are integrally formed and connected to form a spring-open output end.

5. The rotary damper according to claim 1, characterized in that: The damping core shaft extends with a plug-in shaft body extending out of the channel, and the damping seat is provided with a plug-in terminal at one end portion corresponding to the channel extending out of the damping core shaft, and the plug-in terminal has a locking structure for realizing rotational direction locking linkage with a component plugged therewith.

6. The rotary damper according to claim 5, characterized in that: The plug-in shaft body is provided with screw holes in the radial direction.

7. The rotary damper according to claim 5, characterized in that: The plug-in terminal comprises a notch formed by the end of the damping seat being axially recessed along the damping core shaft and a convex plug-in block protruding relative to the notch, wherein the convex plug-in block constitutes a locking structure.

8. The rotary damper according to claim 1, characterized in that: The damping core shaft is provided with an annular anti-slip groove, and the damping seat is provided with a transverse pin, which is inserted into the anti-slip groove.

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