CN212338009U - Shock absorption unit - Google Patents
Shock absorption unit Download PDFInfo
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- CN212338009U CN212338009U CN202021435707.2U CN202021435707U CN212338009U CN 212338009 U CN212338009 U CN 212338009U CN 202021435707 U CN202021435707 U CN 202021435707U CN 212338009 U CN212338009 U CN 212338009U
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Abstract
The utility model provides a damping unit, belonging to the field of damping devices, comprising a fixed frame, a floating frame and a damping roller; the fixed frame and the floating frame can be axially and relatively connected in a sliding manner, and one end of the fixed frame, which is far away from the floating frame, is a fixed end; the fixed frame and the floating frame are matched to form a movable space of the limiting damping roller; the floating frame has an initial position and a floating position different from the initial position relative to the fixed frame, and the movable space continuously changes along with the position change of the floating frame relative to the fixed frame; the distance from the movable space to the fixed end in the floating position is greater than the distance from the movable space to the fixed end in the initial position. Can keep stable through the inertia of floating frame, does not vibrate as far as possible along with fixed frame. The vibration amplitude of the fixed frame is matched under the gravity action of the floating frame capable of automatically returning and the load thereof, so that the up-and-down floating distance of the floating frame is gradually reduced. And the setting of the energy-absorbing piece in the shock attenuation roller can be with vibration energy conversion heat energy to further reduce the influence of vibration to floating frame.
Description
Technical Field
The utility model relates to a damping tool field particularly, relates to a shock attenuation unit.
Background
Since a plurality of display stands and display cabinets for displaying art articles such as found cultural relics, buddha statues, sculptures, and the like are installed in buildings such as art museums, temples, and the like, the display stands and display cabinets collapse when an earthquake occurs, and the displayed articles such as art articles are damaged or injured, thereby suffering great loss which is difficult to restore. Therefore, the framework of the display stand and the display case is made thick to have a strong structure, but it is very expensive and difficult to make a structure that does not collapse in a large earthquake.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shock attenuation unit aims at solving the above-mentioned problem that shock attenuation unit exists among the prior art.
The utility model discloses a realize like this:
a damping unit comprises a fixed frame, a floating frame and a damping roller;
the fixed frame and the floating frame can be axially and relatively slidably connected, and one end of the fixed frame, which is far away from the floating frame, is a fixed end;
the fixed frame and the floating frame are matched to form a movable space for limiting the damping roller;
the floating frame has an initial position and a floating position different from the initial position relative to the fixed frame, and the movable space continuously changes along with the position change of the floating frame relative to the fixed frame;
the distance from the movable space to the fixed end in the floating position is larger than the distance from the movable space to the fixed end in the initial position;
the damping roller comprises an outer roller and a central shaft which are rotatably connected, the outer roller is matched with the inner wall of the movable space, and an energy dissipation part used for consuming vibration energy is arranged between the outer roller and the central shaft.
In an embodiment of the present invention, the fixing frame is provided with a first arc-shaped groove extending along an axial direction of the fixing frame, and a distance from a middle portion of the first arc-shaped groove to the fixing end is greater than distances from other positions of the first arc-shaped groove to the fixing end;
the floating frame is provided with a matching groove extending along the axial direction of the floating frame, and the part of the matching groove overlapped with the first arc-shaped groove forms the movable space.
In an embodiment of the present invention, the matching groove is a second arc-shaped groove, and the radian of the second arc-shaped groove is opposite to that of the first arc-shaped groove.
The utility model discloses an in an embodiment, the energy dissipation piece includes the damping frictional layer, the damping frictional layer set up in outer roller and/or on the center pin, make outer roller with turn into heat energy with the vibration energy when the center pin is relative to rotate.
In an embodiment of the present invention, the fixing frame includes a first side and a second side which are oppositely disposed, and the first side and the second side are respectively provided with one first arc-shaped groove.
In an embodiment of the present invention, the floating frame includes a third side corresponding to the first side, and a fourth side corresponding to the second side;
the third side and the fourth side are provided with one second arc-shaped groove.
In an embodiment of the present invention, the damping roller includes one central shaft and two outer rollers;
the two outer rollers respectively correspond to the movable space of the first side and the movable space of the second side;
the central shaft connects the two outer rollers simultaneously.
The utility model discloses an in one embodiment, the outer roller includes spacing bulge loop, spacing bulge loop is used for the butt fixed frame first arc wall, or butt the floating frame the cooperation groove lateral wall.
In an embodiment of the present invention, the fixed end is provided with a first connecting member for connecting an external object.
In an embodiment of the present invention, the floating frame is kept away from one side of the fixed frame is provided with a second connecting member for connecting an external article.
The utility model has the advantages that: through the utility model provides a shock attenuation unit can be through the inertia of floating frame and remain stable, along with fixed frame vibration as far as possible. The vibration amplitude of the fixed frame is matched under the gravity action of the floating frame capable of automatically returning and the load thereof, so that the up-and-down floating distance of the floating frame is gradually reduced. And the setting of the energy-absorbing piece in the shock attenuation roller can be with vibration energy conversion heat energy to further reduce the influence of vibration to floating frame.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first view angle of a damping unit provided in an embodiment of the present invention when a floating frame is located at the lowest position of a first arc-shaped groove;
fig. 2 is a schematic structural diagram of a first view angle of the damping unit when the floating frame deviates from the lowest position of the first arc-shaped groove according to the embodiment of the present invention;
FIG. 3 is a schematic illustration of the floating amplitude of the floating frame of FIGS. 1 and 2;
fig. 4 is a cross-sectional view of a second perspective of a shock absorbing unit provided by an embodiment of the present invention;
fig. 5 is a schematic structural view of a first view angle of a damping unit with two first arc-shaped grooves respectively arranged on two sides of a fixing frame according to an embodiment of the present invention.
Icon: 100-a fixed frame; 200-a floating frame; 300-damping roller; 110-a first arc-shaped slot; 210-a second arcuate slot; 310-outer rollers; 330-a central axis; 311-limit lug.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
The present embodiment provides a damping unit, referring to fig. 1, which includes a fixed frame 100, a floating frame 200, and a damping roller 300;
the fixed frame 100 and the floating frame 200 are both U-shaped frames, in this embodiment, the outer width of the floating frame 200 is smaller than the inner groove width of the fixed frame 100, and the notches of the floating frame 200 and the fixed frame 100 are oppositely arranged, so that the floating frame 200 is accommodated in the fixed frame 100. The movement of the floating frame 200 is guided by the action of both outer sides of the floating frame 200 and the inner wall surface of the fixed frame 100, and the fixed frame 100 and the floating frame 200 are axially and relatively slidably connected.
The two side plates of the fixed frame 100 are provided with first arc-shaped grooves 110, the first arc-shaped grooves 110 extend along the axial direction of the fixed frame 100 as a whole, and the middle part of the first arc-shaped grooves 110 is bent in the direction away from the floating frame 200.
The two side plates of the floating frame 200 are provided with matching grooves formed by the second arc-shaped grooves 210, the second arc-shaped grooves 210 extend along the axial direction of the floating frame 200 integrally, and the middle parts of the second arc-shaped grooves 210 are bent towards the direction far away from the fixed frame 100.
In this embodiment, since both side plates of the fixed frame 100 are provided with the first arc-shaped grooves 110, both side plates of the floating frame 200 are provided with the second arc-shaped grooves 210, and the damping roller 300 is also provided with a central shaft 330 corresponding to the two outer rollers 310, and the two outer rollers 310 correspond to the two movable spaces formed by the two first arc-shaped grooves 110.
Referring to fig. 1, 2 and 3, since the first arc-shaped groove 110 and the second arc-shaped groove 210 are in a partially overlapped state when the fixed frame 100 is coupled with the floating frame 200, the overlapped portion thereof forms a moving space for limiting the damping roller 300. That is, the damping roller 300 is restricted from moving in the movement space, and as the fixed frame 100 and the floating frame 200 are relatively axially displaced, the overlapping portion of the first arc-shaped groove 110 and the second arc-shaped groove 210 is also changed, and the change of the movement space drives the damping roller 300 to be displaced in the axial direction of the fixed frame 100 and the floating frame 200.
It should be noted that, when the shock absorbing unit is horizontally used on the bearing surface, and the fixed frame 100 and the floating frame 200 are at the initial positions, the first arc-shaped groove 110 is closest to the bottom point of the middle part of the floating frame 200 and coincides with the middle vertex of the second arc-shaped groove 210 closest to the fixed frame 100. Since the fixing frame 100 is fixedly positioned below the floating frame 200 at this time and the damping roller 300 is caught in the active space, the active space is inevitably present. At this time, only when the movable space is located at the middle bottom point of the first arc-shaped groove 110, the floating frame 200 has the minimum gravitational potential energy, and thus exists stably.
Accordingly, when the damping unit is horizontally used while being placed on the bearing surface, and the floating frame 200 is axially displaced with respect to the fixed frame 100 due to horizontal vibration, the movable space is separated from the middle bottom point of the first arc-shaped groove 110, and at this time, the damping roller 300 rises as the movable space rises, and accordingly, the floating frame 200 rises due to the rise of the damping roller 300. The floating frame 200 at this time may have a greater gravitational potential energy than the initial position and may tend to move to a lower position by itself.
It should be noted that the vibration source is the fixed frame 100, and the floating frame 200 itself will automatically match the horizontal vibration of the fixed frame 100 and rise to a certain height, and at this time, the floating frame 200 itself does not have large vibration due to inertia, but rather, the fixed frame 100 more freely performs horizontal vibration below the floating frame 200 (but correspondingly, the floating frame 200 may float to a certain height, but in the case that the radian of the first arc-shaped groove 110 and the second arc-shaped groove 210 is not large, the amplitude of the vertical floating thereof is negligible relative to the amplitude of the horizontal movement of the fixed frame 100).
The vibration of the fixed frame 100 is gradually reduced at the end, and at this time, the floating frame 200 is automatically moved to a relatively lower place due to its gravitational potential energy to automatically match the weaker horizontal vibration of the fixed frame 100.
That is, by the arc arrangement of the first arc-shaped groove 110 and the second arc-shaped groove 210, the floating frame 200 thereof can match the variation of the vibration amplitude of the fixed frame 100 by its own weight, thereby always maintaining the minimum vibration amplitude based on its inertia.
It should be noted that, in this embodiment, the matching groove on the floating frame 200 and the first arc-shaped groove 110 on the fixed frame 100 are both arc-shaped grooves, and a certain radian is selected through experiments, so that the damping effect corresponding to the vibration strength is excellent. In other embodiments, a V-shaped groove, a wave-shaped groove, etc. can be selected. Of course, one of them may be an arc-shaped groove, a V-shaped groove, a wave-shaped groove, and the other one is a straight long groove, etc., that is, the two grooves on the fixed frame 100 and the floating frame 200 may be different. However, if the first arc-shaped groove 110 and the mating groove in the present embodiment are replaced with straight long grooves, the function of the floating frame 200 to automatically match the variation of the vibration amplitude of the fixed frame 100 by its own weight may be lost.
Referring to fig. 4, in the present embodiment, the damping roller 300 includes an outer roller 310 and a central shaft 330 rotatably connected, the outer roller 310 is engaged with an inner wall of the active space, and a energy dissipation member for dissipating vibration energy is disposed between the outer roller 310 and the central shaft 330.
In the whole process, the floating frame 200 and the fixed frame 100 always have relative displacement (the floating frame 200 and the load thereon are stable relative to the initial position thereof, and the fixed frame 100 has reverse displacement relative to the initial position thereof), so the damping roller 300 also always has motion, and the vibration energy can be converted into heat energy as much as possible through the energy dissipation member, thereby reducing the influence of the vibration on the floating frame 200, and keeping the floating frame 200 stable as much as possible based on the inertia thereof.
Specifically, the energy dissipater includes a damping friction layer disposed on the outer roller 310 and/or the central shaft 330, so that the outer roller 310 and the central shaft 330 rotate relative to each other to convert vibration energy into heat energy.
More importantly, after the vibration of the fixed frame 100 stops, the floating frame 200 excessively moves due to the motion inertia in the process of returning, so that the floating frame repeatedly swings, and if no energy dissipation member is arranged, the number of times of the repeated swinging is greatly increased, so that the negative effect that the vibration of the floating frame 200 is increased after the fixed frame 100 stops is caused.
In the present embodiment, the outer roller 310 includes a limit protrusion ring 311, and the limit protrusion ring 311 is used to abut against the inner side wall of the first arc-shaped groove 110 of the fixed frame 100 or abut against the inner side wall of the second arc-shaped groove 210 of the floating frame 200.
The damping roller 300 can be restricted from axial displacement by the limit convex ring 311.
In this embodiment, the fixing end needs to be fixed on the bearing surface, so that the fixing end is provided with a first connecting member for connecting with an external object.
And the floating frame 200 also needs to bear load, so that a second connecting member for connecting the load is provided at one end of the floating frame 200 away from the fixed frame 100.
The first connecting piece and the second connecting piece can be both rivets, screws and other connecting pieces.
Referring to fig. 5, in the present embodiment, two sides of the fixed frame 100 are respectively provided with a first arc-shaped groove 110, and two sides of the floating frame 200 are respectively provided with a second arc-shaped groove 210. In other embodiments, the number of the first arc-shaped grooves 110 on both sides of the fixed frame 100 may be increased to two, three or other according to the increase in the lengths of the fixed frame 100 and the floating frame 200, and correspondingly, the number of the second arc-shaped grooves 210 on both sides of the floating frame 200 may be increased to two, three or other.
Through the utility model provides a shock attenuation unit can be through the inertia of floating frame 200 and remain stable, does not vibrate along with fixed frame 100 as far as possible. The floating frame 200 capable of being automatically returned and the gravity action of the load thereof are matched with the vibration amplitude of the fixed frame 100, thereby gradually reducing the up-down floating distance of the floating frame 200. And the energy dissipaters provided in the damping roller 300 may convert vibration energy into heat energy, thereby further reducing the influence of vibration on the floating frame 200.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A damping unit is characterized by comprising a fixed frame, a floating frame and a damping roller;
the fixed frame and the floating frame can be axially and relatively slidably connected, and one end of the fixed frame, which is far away from the floating frame, is a fixed end;
the fixed frame and the floating frame are matched to form a movable space for limiting the damping roller;
the floating frame has an initial position and a floating position different from the initial position relative to the fixed frame, and the movable space continuously changes along with the position change of the floating frame relative to the fixed frame;
the distance from the movable space to the fixed end when the movable space is at the floating position is greater than the distance from the movable space to the fixed end when the movable space is at the initial position.
2. A shock-absorbing unit according to claim 1, wherein the shock-absorbing rollers comprise a rotatably connected outer roller and a central shaft, the outer roller engaging the inner wall of the active space, and a dissipater for dissipating vibrational energy being arranged between the outer roller and the central shaft.
3. The damping unit according to claim 2, wherein the fixing frame is provided with a first arc-shaped groove extending along the axial direction of the fixing frame, and the distance from the middle part of the first arc-shaped groove to the fixing end is greater than the distance from other positions of the first arc-shaped groove to the fixing end;
the floating frame is provided with a matching groove extending along the axial direction of the floating frame, and the part of the matching groove overlapped with the first arc-shaped groove forms the movable space.
4. The shock absorbing unit according to claim 3, wherein said mating slot is a second arcuate slot having an opposite arc to said first arcuate slot.
5. A shock-absorbing unit according to claim 2, wherein the energy dissipater comprises a damping friction layer provided on the outer roller and/or the central shaft such that the outer roller converts vibrational energy into thermal energy upon relative rotation with the central shaft.
6. The shock absorbing unit according to claim 4, wherein said fixed frame includes first and second oppositely disposed sides, one of said first arcuate slots being disposed on each of said first and second sides.
7. The shock absorbing unit according to claim 6, wherein the floating frame includes a third side corresponding to the first side, and a fourth side corresponding to the second side;
the third side and the fourth side are provided with one second arc-shaped groove.
8. The damping unit according to claim 7, characterized in that said damping rollers comprise one said central shaft and two said outer rollers;
the two outer rollers respectively correspond to the movable space of the first side and the movable space of the second side;
the central shaft connects the two outer rollers simultaneously.
9. The damping unit according to claim 8, characterized in that the outer roller comprises a stop collar for abutting the first arc-shaped groove side wall of the fixed frame or the mating groove side wall of the floating frame.
10. The cushion unit of claim 1, wherein the fixed end is provided with a first connector for connecting to an external object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435707.2U CN212338009U (en) | 2020-07-17 | 2020-07-17 | Shock absorption unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435707.2U CN212338009U (en) | 2020-07-17 | 2020-07-17 | Shock absorption unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338009U true CN212338009U (en) | 2021-01-12 |
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ID=74081749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021435707.2U Active CN212338009U (en) | 2020-07-17 | 2020-07-17 | Shock absorption unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338009U (en) |
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2020
- 2020-07-17 CN CN202021435707.2U patent/CN212338009U/en active Active
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