CN211624079U - Parallel movement shock-absorbing structure - Google Patents

Abstract

The utility model relates to a shock attenuation technical field provides a parallel translation shock-absorbing structure, include: first part and second part, the same side of first part and second part is equipped with damper assembly, damper assembly includes: the scissors comprise a first lever, a second lever and an elastic element, wherein the first lever and the second lever are mutually hinged to form a scissors structure, one end of the first lever is hinged to the first component, the other end of the first lever is hinged to one end of the elastic element, one end of the second lever is hinged to the second component, and the other end of the second lever is hinged to the other end of the elastic element. Through setting up damper in the same one side of first part and second part, just so can not occupy the space of first part and second part in relative shock attenuation stroke direction to make things convenient for elastic element's installation, and can not select elastic element according to the demand by the influence that the space restricted, utilize the lever principle of scissors shape structure simultaneously, can freely design the arm of force size, improved damper's shock attenuation effect so greatly.

Description

Parallel movement shock-absorbing structure

Technical Field

The utility model belongs to the technical field of the shock attenuation technique and specifically relates to a parallel translation shock-absorbing structure is related to.

Background

The conventional common damping structure generally adopts an elastic element such as a damper or a spring to directly connect two parts, so that the relative distance between the two parts is changed, and the damping effect is achieved. At present, bumper shock absorber or spring and two parts adopt linear connection, the bumper shock absorber is also linear elastic element equally, bumper shock absorber itself is along with the direction compressed of shock attenuation stroke, because its size has still occupied the space of shock attenuation stroke direction, it is very close to lead to two parts at elastic element both ends distance that can not compressed, and elastic element is compressed to extreme position, can appear more harsh striking impulsive force of bottoming, when the space in the shock attenuation stroke direction has the time limit in addition, can lead to linear elastic element to install hardly, or make elastic element's shock-absorbing capacity can not obtain guaranteeing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a parallel translation shock-absorbing structure aims at solving among the prior art technical problem that linear elastic element's shock-absorbing capacity receives the restriction of shock attenuation stroke installation space.

In order to achieve the above object, the utility model adopts the following technical scheme: a parallel translation shock absorbing structure comprising: the first part and the second part can move in parallel to enable the first part and the second part to move close to each other or move away from each other, and a damping assembly is arranged on the same side of the first part and the second part and comprises: the scissors-type scissors device comprises a first lever, a second lever and an elastic element, wherein the first lever and the second lever are mutually hinged to form a scissors shape, one end of the first lever is hinged to the first part, the other end of the first lever is hinged to one end of the elastic element, one end of the second lever is hinged to the second part, and the other end of the second lever is hinged to the other end of the elastic element.

In one embodiment, the first lever comprises a first force applying arm and a first damping arm, the second lever comprises a second force applying arm and a second damping arm, the joint of the first force applying arm and the first damping arm and the joint of the second force applying arm and the second damping arm are hinged, the first force applying arm is hinged on a first component, the second force applying arm is hinged on a second component, the first damping arm and the second damping arm are respectively hinged at two ends of the elastic element, and the ratio of the force applying arm to the damping arm is 1-3.

In one embodiment, the included angles between the elastic element and the first damping arm and between the elastic element and the second damping arm are both 45 degrees to 90 degrees.

In one embodiment, the length of the first force applying arm is equal to the length of the second force applying arm, the length of the first shock absorbing arm is equal to the length of the second shock absorbing arm, or the length of the first force applying arm is less than the length of the second force applying arm, and the length of the first shock absorbing arm is greater than the length of the second shock absorbing arm.

In one embodiment, the length of the first force applying arm is greater than the length of the first shock absorbing arm and the length of the second force applying arm is greater than the length of the second shock absorbing arm, or the length of the first force applying arm is equal to the length of the first shock absorbing arm and the length of the second force applying arm is equal to the length of the second shock absorbing arm.

In one embodiment, the first levers are arranged in two overlapping intervals, and the second lever is arranged between the two first levers.

In one embodiment, the first part is provided with a first bump, the second part is provided with a second bump, the first bump and the second bump are located on the same side, the second bump is provided with a groove, the two first levers are rotatably arranged on two sides of the first bump, and one end of the second lever is rotatably connected with the second bump in the groove.

In one embodiment, the first lever, the second lever, the first member, and the second member are all metal pieces.

In one embodiment, the elastic element is a spring, or the elastic element includes two mutually repulsive first and second magnets, the first magnet is disposed on the first lever, the second magnet is disposed on the second lever, or the elastic element is a rubber or silicone member.

In one embodiment, the first part and the second part are removably plugged.

The utility model has the advantages that:

the utility model provides a pair of parallel movement shock-absorbing structure, through with damper setting in the same one side of first part and second part, just so can not occupy the space of first part and second part on relative shock attenuation stroke direction to make things convenient for elastic element's installation, and can not select elastic element according to the demand by the influence of space restriction, utilize the lever principle of scissors structure simultaneously, can freely design the arm of force size, damper's shock attenuation effect has been improved so greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a parallel-moving damping structure provided in an embodiment of the present invention;

fig. 2 is a schematic view of an open plane structure of a first damping assembly of the parallel-motion damping structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a compressed plane structure of a first damping assembly of the parallel-motion damping structure according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a change in force applied to a first damping assembly of the parallel-movement damping structure according to an embodiment of the present invention;

fig. 5 is a schematic view of an open plane structure of a second damping assembly of the parallel-motion damping structure according to an embodiment of the present invention;

fig. 6 is a schematic view of a compression plane structure of a second damping component of the parallel-moving damping structure according to the embodiment of the present invention.

Reference numerals: 1. a first member; 11. a first bump; 2. a second component; 21. a second bump; 22. a groove; 3. a shock absorbing assembly; 31. a first lever; 311. a first force application arm; 312. a first shock absorbing arm; 32. a second lever; 321. a second force application arm; 322. a second shock absorbing arm; 33. an elastic element.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and fig. 2, a parallel-moving damping structure according to an embodiment of the present invention will now be described. This parallel translation shock-absorbing structure includes: a first member 1 and a second member 2, the first member 1 and the second member 2 being movable in parallel with each other so that they can be moved toward each other or away from each other. The same side of first part 1 and second part 2 is equipped with damper assembly 3, damper assembly 3 includes: the first lever 31 and the second lever 32 are hinged to each other in a scissors shape, one end of the first lever 31 is hinged to the first component 1, the other end of the first lever is hinged to one end of the elastic element 33, one end of the second lever 32 is hinged to the second component 2, and the other end of the second lever 32 is hinged to the other end of the elastic element 33.

In this embodiment, the first member 1 is a support, the second member 2 is a force-receiving member, the external force F1 is used to apply a pressure to the first member 1, so that the first member 1 and the second member 2 slide along the damping stroke direction, the first lever 31 rotates relative to the second lever 32, the elastic element 33 is gradually compressed to provide a damping force F2, and when the first member 1 and the second member 2 move away from each other, the first lever 31 rotates relative to the second lever 32, and the elastic element 33 is gradually in a relaxed state. In the present embodiment, the approaching means that the first component 1 moves towards the direction close to the second component 2 along the damping stroke direction, and the departing means that the first component 1 moves towards the direction away from the second component 2 along the damping stroke direction, wherein the damping stroke direction is a straight line, that is, the first component 1 and the second component 2 reciprocate linearly.

The embodiment of the utility model provides a pair of parallel translation shock-absorbing structure, through with damper 3 set up in the same one side of first part 1 and second part 2, just so can not occupy the space of first part 1 and second part 2 on the shock attenuation stroke direction, thereby make things convenient for elastic element 33's installation, and can not select elastic element 33 according to the demand by the influence of space restriction, utilize the lever principle of scissors structure simultaneously, can freely design the arm of force size, damper 3's shock attenuation effect has been improved so greatly.

In this embodiment, the first lever 31 includes a first force applying arm 311 and a first shock absorbing arm 312, and the second lever 32 includes: a second force applying arm 321 and a second shock absorbing arm 322. The joint of the first force application arm 311 and the first shock absorption arm 312 and the joint of the second force application arm 321 and the second shock absorption arm 322 are hinged, one end, far away from the first shock absorption arm 312, of the first force application arm 311 is hinged to the first component 1, one end, far away from the second shock absorption arm 322, of the second force application arm 321 is hinged to the second component 2, and one end, far away from the first force application arm 311, of the first shock absorption arm 312 and one end, far away from the second force application arm 321, of the second shock absorption arm 322 are hinged to two ends of the elastic element 33 respectively. In this embodiment, the ratio of the first force applying arm 311 to the first shock absorbing arm 312 is 1: 1-3: 1, likewise, the ratio of the second force applying arm 321 to the second shock absorbing arm 322 is 1: 1-3: 1.

in the present embodiment, the included angles between the elastic element 33 and the first and second damping arms 312 and 322 are 45 ° to 90 °. The elastic element 33 may be arranged parallel to the damping stroke direction of the first member 1 or may be arranged obliquely.

In this embodiment, the length of the first force applying arm 311 is equal to the length of the second force applying arm 321, the length of the first shock absorbing arm 312 is equal to the length of the second shock absorbing arm 322, the length of the first force applying arm 311 is equal to the length of the first shock absorbing arm 312, the length of the second force applying arm 321 is equal to the length of the second shock absorbing arm 322, and at this time, the first lever 31 and the second lever 32 are isodynamic levers; in other embodiments, the length of the first force applying arm 311 is less than the length of the second force applying arm 321, and the length of the first shock absorbing arm 312 is greater than the length of the second shock absorbing arm 322.

Alternatively, in other embodiments, the length of the first force applying arm 311 is greater than the length of the first shock absorbing arm 312, and the length of the second force applying arm 321 is greater than the length of the second shock absorbing arm 322, so that the first lever 31 and the second lever 32 are labor saving levers.

In the present embodiment, two first levers 31 are disposed at an interval, and the second lever 32 is disposed between the two first levers 31. Specifically, the first part 1 is provided with the first protruding block 11, the second part 2 is provided with the second protruding block 21, the first protruding block 11 and the second protruding block 21 are located on the same side, the second protruding block 21 is provided with the groove 22, the two first levers 31 are rotatably arranged on two sides of the first protruding block 11, and one end of the second lever 32 is rotatably connected with the second protruding block 21 in the groove 22, so that the first lever 31 and the second lever 32 can be conveniently mounted, and meanwhile, the stress capacity of the first lever 31 and the second lever 32 is guaranteed.

In the present embodiment, the first lever 31 and the first protrusion 11 are rotatably connected through a rotating shaft, the first lever 31 and the second lever 32 are rotatably connected through a rotating shaft, the second lever 32 and the second protrusion 21 are rotatably connected through a rotating shaft, and the elastic element 33 is rotatably connected with the first lever 31 and the second lever 32 through a rotating shaft, respectively, where the rotating shaft is a metal rotating shaft, and may also be a bolt and a nut.

In this embodiment, the first lever 31, the second lever 32, the first member 1, and the second member 2 are all metal members, and are made of steel, so that the stress capability thereof can be ensured.

In this embodiment, the elastic element 33 is a shock absorber or a spring, the spring is sleeved on the telescopic rod, and the spring is a metal spring, or the spring is a gas spring. In other embodiments, the elastic element 33 includes two mutually repulsive first and second magnets, the first magnet is disposed on the first lever 31, the second magnet is disposed on the second lever 32, or the elastic element 33 is a rubber or silicone member.

In the embodiment, the first part 1 and the second part 2 are square columns, the first part 1 and the second part 2 are movably arranged in parallel, and in other embodiments, the first part 1 and the second part 2 are movably inserted. Specifically, the second part 2 is provided with a jack along which the first part 1 is inserted and moves movably and parallelly relative to the second part 2.

In a specific embodiment of this embodiment, as shown in fig. 2, 3 and 4, in this embodiment, a hinge point of the first force applying arm 311 and the first component 1 is point a, a hinge point of the first damping arm 312 and the elastic element 33 is point B, a hinge point of the second force applying arm 321 and the second component 2 is point C, a hinge point of the second damping arm 322 and the elastic element 33 is point D, a hinge point of the first lever 31 and the second lever 32 is point O, an external force F1 is used for applying an external force to the point a, and a damping force of the elastic element 33 is F2. An included angle between the first force applying arm 311 and the first shock absorbing arm 312 is an obtuse angle, and an included angle between the second force applying arm 321 and the second shock absorbing arm 322 is an obtuse angle.

In this embodiment, fig. 2 shows the first member 1 and the second member 2 stretched to the longest point where AC is longest, and fig. 3 shows the first member 1 and the second member 2 compressed to the shortest point where AC is shortest. As can be seen from fig. 3, when AC is the shortest, there is still enough space between two points of BD for mounting the elastic member 33.

In this embodiment, the length of AO is smaller than that of CO, that is, the length of the first force application arm 311 is smaller than that of the second force application arm 321, the length of DO is smaller than that of B0, the length of the second damper arm 322 is smaller than that of the first damper arm 312, before compression, the angle of OAC is an acute angle, and during compression, as AO passes through a limit position perpendicular to AC, CO undergoes first downward movement and clockwise rotation, and then upward movement and counterclockwise rotation. When AC is the shortest, at this time, the angle of angle OAC is obtuse, point O and elastic element 33 are lifted to a relatively high position, so that the space occupied by elastic element 33 does not fall with the depression of first component 1, thereby enabling damper assembly 3 to move within a certain space range, and improving the space utilization rate above second component 2 side. In this embodiment, since the first lever 31 and the second lever 32 have a non-linear relationship, the compression process and the rebound process have a non-linear relationship, and the same damping stroke corresponds to more compression stroke and elastic force of the elastic member 33 when the compression is at the lowest, thereby increasing the elastic force effect in the bottoming state. Fig. 4 is a non-linear graph of the force variation of the elastic element 33, wherein the abscissa is the length variation of AC, and the ordinate is the ratio of L1/L2, wherein L1 is the arm of the external force F1 relative to the pivot point 0, and L2 is the arm of the damping force F2 relative to the pivot point O. When the AC is longest, corresponding to the 0 position, the AC is compressed to the shortest limit position, corresponding to the 100% position. As can be seen from fig. 5, when the AC is the longest (0 position), the moment arm of L1 is larger, and is in a labor-saving lever state where it is easier to compress the elastic element 33, and when the AC is the shortest (100% position), L1 is gradually reduced until L1 approaches L2, indicating that the elastic element 33 is difficult to be compressed.

In other embodiments, the length of BO is equal to the length of DO, the length of AO is equal to the length of CO, the length of AO is equal to the length of BO, DOB and AOC are similar triangular structures, the elastic element 33 is arranged parallel to the damping stroke direction of the first member 1, the elastic element 33 is also kept parallel to the damping stroke direction during compression, and the compression stroke and the rebound force of the elastic element 33 are in a linear relationship. Of course, the length of the AO may be designed to be longer than the BO, which is a labor-saving lever, or the length of the AO may be designed to be shorter than the BO, which is a labor-saving lever. Therefore, the reasonable length proportion of AO and BO can be designed according to the requirements of installation space and rebound force. In other embodiments, the first lever 31 and the second lever 32 may be linear levers.

In another embodiment, as shown in fig. 5 and 6, in this embodiment, the included angle between the first force applying arm 311 and the first shock absorbing arm 312 is an obtuse angle, the included angle between the second force applying arm 321 and the second shock absorbing arm 322 is an acute angle, and the acute angle is 75 ° to 89 °, so that the positions of the point B and the point D are arranged higher, so that the elastic element 33 is lifted to a higher position when the elastic element 33 is compressed, thereby avoiding occupying a bottom space position, and the process is to convert the up-and-down shock absorbing action of the first component 1 into the compression action of the transverse movement of the elastic element 33, which facilitates the decoupling of the vibrating element.

The utility model discloses on the bicycle that parallel translation shock-absorbing structure can be used, wherein first part 1 is used for installing the cushion, and second part 2 is the main support of bicycle.

The utility model discloses parallel translation shock-absorbing structure through setting up damper 3 in one side of first part 1 and second part 2, has effectively reduced damper 3 like this and has taken the shock attenuation stroke space, can design damper 3 according to the demand simultaneously, improves space utilization, can also design the shock attenuation change curve according to the demand, improves the holding power of damper 3 when extreme position.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A parallel translation shock absorbing structure, comprising: the first part and the second part can move in parallel to enable the first part and the second part to move close to each other or move away from each other, and a damping assembly is arranged on the same side of the first part and the second part and comprises: the scissors-type scissors device comprises a first lever, a second lever and an elastic element, wherein the first lever and the second lever are mutually hinged to form a scissors shape, one end of the first lever is hinged to the first part, the other end of the first lever is hinged to one end of the elastic element, one end of the second lever is hinged to the second part, and the other end of the second lever is hinged to the other end of the elastic element.

2. A parallel movement shock-absorbing structure according to claim 1, wherein: the first lever comprises a first force applying arm and a first damping arm, the second lever comprises a second force applying arm and a second damping arm, the joint of the first force applying arm and the first damping arm and the joint of the second force applying arm and the second damping arm are hinged, the first force applying arm is hinged to a first component, the second force applying arm is hinged to a second component, the first damping arm and the second damping arm are hinged to two ends of the elastic element respectively, and the ratio of the first force applying arm to the first damping arm is 1-3.

3. A parallel movement shock-absorbing structure according to claim 2, wherein: the included angles between the elastic element and the first damping arm and between the elastic element and the second damping arm are both 45-90 degrees.

4. A parallel movement shock-absorbing structure according to claim 3, wherein: the length of the first force application arm is equal to that of the second force application arm, the length of the first shock absorption arm is equal to that of the second shock absorption arm, or the length of the first force application arm is smaller than that of the second shock absorption arm, and the length of the first shock absorption arm is larger than that of the second shock absorption arm.

5. A parallel movement shock-absorbing structure according to claim 3, wherein: the length of the first force application arm is greater than that of the first shock absorption arm, the length of the second force application arm is greater than that of the second shock absorption arm, or the length of the first force application arm is equal to that of the first shock absorption arm, and the length of the second force application arm is equal to that of the second shock absorption arm.

6. A parallel movement shock-absorbing structure according to claim 1, wherein: the first levers are arranged in an overlapping and spaced mode, and the second levers are arranged between the two first levers.

7. A parallel movement shock-absorbing structure according to claim 6, wherein: the first part is provided with a first convex block, the second part is provided with a second convex block, the first convex block and the second convex block are positioned on the same side, the second convex block is provided with a groove, the first lever is rotatably arranged on two sides of the first convex block, and one end of the second lever is rotatably connected with the second convex block in the groove.

8. A parallel movement shock-absorbing structure according to any one of claims 1 to 7, wherein: the first lever, the second lever, the first member and the second member are all metal pieces.

9. A parallel movement shock-absorbing structure according to any one of claims 1 to 7, wherein: the elastic element is a spring, or the elastic element comprises a first magnet and a second magnet which are mutually repulsive, the first magnet is arranged on the first lever, the second magnet is arranged on the second lever, or the elastic element is a rubber piece or a silicon rubber piece.

10. A parallel movement shock-absorbing structure according to any one of claims 1 to 7, wherein: the first part and the second part are movably inserted.

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