Horizontal rigidity adjustable structure

Abstract

The utility model relates to the technical field of air bags, in particular to a horizontal rigidity adjustable structure which comprises an air bag assembly. A flexible hinge; the adjusting device comprises a fixed column, an elastic part, a supporting part, a sliding part and a rotating part, the supporting part is connected with the two ends of the elastic part and connected with the air bag assembly through a flexible hinge, the sliding part is arranged on the elastic part in a sliding mode and fixedly connected with the rotating part, and the rotating part is rotationally connected to the fixed column; the sliding part is driven to slide on the elastic part, so that the relative distance between the upper surface of the sliding part and the lower surface of the supporting part of the elastic part is changed, the deformation length of the elastic part can be accurately adjusted through sliding of the sliding part on the elastic part, then the overall rigidity is adjusted, and the diversified requirements of different precision machines for rigidity are met.

Description

Technical Field

[0001] This utility model relates to the field of airbag technology, and in particular to a structure with adjustable horizontal stiffness. Background Technology

[0002] When using airbag technology to reduce the natural frequency in the vertical direction, the traditional approach is to place the airbag upright. However, this approach has a significant problem: its movement characteristics in the horizontal direction (i.e., lateral or longitudinal) are difficult to precisely set, and it is difficult to achieve a small horizontal vector natural frequency. This means that while an upright airbag may achieve the desired frequency reduction effect in the vertical direction, it cannot meet the higher requirements for vibration control in the horizontal direction.

[0003] Therefore, the airbag was placed inverted. Practice has shown that, after inverting the airbag, its effect on reducing the natural frequency in the vertical direction did not change significantly, maintaining its original effectiveness. However, in the horizontal direction, the inverted airbag exhibited new potential. It can more effectively cope with the influence of low horizontal vector frequencies, thus optimizing the vibration performance of the mechanical system in the horizontal direction to some extent.

[0004] Nevertheless, inverted airbag technology still faces some challenges. First, it cannot meet the diverse stiffness requirements of various precision machines. Different mechanical systems have different stiffness requirements, and inverted airbags offer relatively limited flexibility in stiffness adjustment.

[0005] Therefore, this application develops a horizontally adjustable stiffness structure to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a horizontally adjustable structure to solve the problem that airbags in the prior art cannot adapt to different precision mechanical stiffness requirements in the horizontal vector.

[0007] The technical solution of this utility model is: a structure with adjustable horizontal stiffness, comprising:

[0008] Airbag assembly;

[0009] Flexible hinge;

[0010] An adjustment device includes a fixed column, an elastic part, a support part, a sliding part, and a rotating part. The support part is connected to both ends of the elastic part and is connected to the airbag assembly via a flexible hinge. The sliding part is slidably disposed on the elastic part and fixedly connected to the rotating part. The rotating part is rotatably connected to the fixed column. When the rotating part rotates, it drives the sliding part to slide on the elastic part, thereby changing the relative distance between the upper surface of the elastic part and the lower surface of the support part.

[0011] Preferably, the elastic part includes two leaf springs, the two ends of the two leaf springs are respectively fixed on the support part, and the projections of the two leaf springs on the fixed column coincide.

[0012] Preferably, the sliding part includes a second connecting block located between the two leaf springs and a first connecting block and a third connecting block located on both sides of the second connecting block. The first connecting block and the third connecting block are both attached to the second connecting block and locked with screws. The contact surfaces of the first connecting block and the second connecting block extend towards each other to form two first extensions, and the contact surfaces of the second connecting block and the third connecting block extend towards each other to form two second extensions, thereby defining the sliding space of the corresponding two leaf springs.

[0013] Preferably, the upper and lower surfaces of the second connecting block are provided with slots, and the first connecting block and the third connecting block extend toward the second connecting block and are respectively located in the corresponding slots.

[0014] Preferably, the rotating part includes a first gear and a second gear. The first gear is rotatably connected to the fixed column, and the second gear is fixedly connected to one side of the locked first connecting block, the second connecting block and the third connecting block, and meshes with the first gear.

[0015] Preferably, both the first gear and the second gear have herringbone teeth.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] (1) By sliding the sliding part on the elastic part, the deformation length of the elastic part can be precisely adjusted, thereby adjusting the overall stiffness and meeting the diverse stiffness requirements of different precision machines.

[0018] (2) The connection strength is increased by the mutual extension of the first extension and the second extension and the setting of the slot between the connecting blocks, which prevents the connecting blocks from falling apart during the adjustment process and ensures the integrity and safety of the structure.

[0019] (3) The rotating part adopts the first and second gears with herringbone teeth, which not only enhances the load-bearing capacity, but also compensates for slight misalignment, ensuring that the sliding part does not misalign or shift during the adjustment process, and achieving precise control. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of the adjustable horizontal stiffness of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the adjusting device described in this utility model;

[0023] Figure 3 This is a schematic diagram of the sliding part described in this utility model;

[0024] Figure 4 This is an exploded view of the sliding part described in this utility model.

[0025] The components are: 1. Airbag assembly; 2. Flexible hinge; 3. Adjustment device; 31. Fixed column; 32. Elastic part; 321. Leaf spring; 33. Support part; 34. Sliding part; 341. First connecting block; 342. Second connecting block; 343. Third connecting block; 344. First extension part; 345. Second extension part; 346. Groove; 35. Rotating part; 351. First gear; 352. Second gear. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments:

[0027] like Figures 1-3 As shown, a horizontally stiffness-adjustable structure includes an airbag assembly 1, a flexible hinge 2, and an adjustment device 3. The adjustment device 3 includes a fixed column 31, an elastic part 32, a support part 33, a sliding part 34, and a rotating part 35. Two support parts 33 are respectively disposed at both ends of the elastic part 32, and the support part 33 located at the top of the elastic part 32 is connected to the airbag assembly 1 through the flexible hinge 2. The sliding part 34 is rotatably connected to the fixed column 31 and fixedly connected to the elastic part 32. Through the mutual cooperation of the elastic part 32 and the fixed part, the deformation angle and direction of the elastic part 32 are limited, thereby reducing the influence of the horizontal vector frequency on the precision instrument located above the airbag assembly 1 in the horizontal direction.

[0028] In this embodiment, as Figures 2-4As shown, the elastic part 32 includes two leaf springs 321, and the two ends of the two leaf springs 321 are respectively fixed to the corresponding support part 33. The sliding part 34 includes a first connecting block 341, a second connecting block 342, and a third connecting block 343. The second connecting block 342 is located between the two leaf springs 321. The first connecting block 341 and the third connecting block 343 are located on both sides of the second connecting block 342 and are close to the second connecting block 342. The three connecting blocks are locked with screws to prevent the sliding part 34 from slipping and causing the stiffness of the elastic part 32 to change when the elastic part 32 reduces the influence of the frequency of the horizontal vector on the airbag through deformation. This would prevent the influence of the current frequency of the horizontal vector on the precision machinery from being reduced. When the rotating part 35 rotates, it drives the sliding part 34 to slide on the elastic part 32, thereby changing the relative distance between the upper surface of the elastic part 32 and the lower surface of the support part 33, thereby changing the deformation length of the elastic part 32 and thus changing the stiffness of the elastic part 32 to adapt to the stiffness requirements of different precision machinery.

[0029] Furthermore, the projections of the two leaf springs 321 onto the fixed post 31 coincide. When the projections of the two leaf springs 321 onto the fixed post 31 coincide, they together provide a more stable support for the airbag, enhancing the overall structural stability of the airbag assembly 1. This allows the airbag to maintain its shape and position when subjected to a horizontal vector, thereby more effectively playing a role in shock absorption and protection.

[0030] To prevent the screw from being removed when adjusting the position of the sliding part 34, such as Figures 3-4 As shown, the first connecting block 341, the second connecting block 342, and the third connecting block 343 fall and scatter. The contact surfaces of the first connecting block 341 and the second connecting block 342 extend towards each other, forming two first extensions 344. The contact surfaces of the second connecting block 342 and the third connecting block 343 each extend towards each other, forming two second extensions 345, thus defining the sliding space of the corresponding two leaf springs 321. Furthermore, the upper and lower surfaces of the second connecting block 342 are also provided with slots 346. Both the first connecting block 341 and the third connecting block 343... The first connecting block 341 and the third connecting block 343 extend towards the second connecting block 342 and into the corresponding slot 346. The slots 346 on the upper and lower surfaces of the second connecting block 342 provide space for the extensions of the first connecting block 341 and the third connecting block 343, thus constraining the connecting blocks in the vertical direction and further preventing them from falling off. The first connecting block 341 and the third connecting block 343 both extend towards the second connecting block 342 and into the corresponding slot 346, which not only increases the connection strength between the connecting blocks, but also makes them less likely to come apart when the screws are removed.

[0031] To more precisely control the position of the sliding part 34 within the elastic part 32, the rotating part 35 includes a first gear 351 and a second gear 352. The first gear 351 is rotatably connected to the fixed column 31, and the second gear 352 meshes with the first gear 351. The second gear 352 is fixedly connected to one side of the locked first connecting block 341, the second connecting block 342, and the third connecting block 343. The rotation of the first gear 351 causes the second gear 352 to move up and down, thereby moving the sliding part 34 and adjusting the stiffness of the elastic part 32.

[0032] Furthermore, both the first gear 351 and the second gear 352 have herringbone teeth. The unique tooth shape of the herringbone gear can distribute the load more evenly on the teeth, thereby significantly enhancing the load-bearing capacity of the gear and helping to compensate for slight misalignment. This prevents the first gear 351 from moving along its own axis during rotation and misaligning with the second gear 352, thus affecting the stiffness of the elastic part 32 corresponding to the sliding part 34 after adjustment.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A horizontally stiffened structure, characterized by, The utility model relates to an air bag assembly (1), a flexible hinge (2), an adjusting device (3) comprising a fixed column (31), an elastic part (32), a support part (33), a sliding part (34) and a rotating part (35), two support parts (33) are connected with two ends of the elastic part (32) and are connected with the air bag assembly (1) through the flexible hinge (2), the sliding part (34) is slidably arranged on the elastic part (32) and is fixedly connected with the rotating part (35), the rotating part (35) is rotatably connected on the fixed column (31), when the rotating part (35) rotates, the sliding part (34) is driven to slide on the elastic part (32), thereby changing the relative distance between the upper surface of the elastic part (32) on the sliding part (34) and the lower surface of the support part (33). The elastic part (32) comprises two leaf springs (321), two ends of two leaf springs (321) are fixed on the support part (33) respectively, and the projections of two leaf springs (321) on the fixed column (31) coincide. The sliding part (34) comprises a second connecting block (342) between two leaf springs (321) and a first connecting block (341) and a third connecting block (343) on both sides of the second connecting block (342), the first connecting block (341) and the third connecting block (343) are attached to the second connecting block (342) and locked by screws; wherein the contact surface of the first connecting block (341) and the second connecting block (342) respectively extends to each other, and two first extension parts (344) are formed together, the contact surface of the second connecting block (342) and the third connecting block (343) respectively extends to each other, and two second extension parts (345) are formed together, so as to define the sliding space corresponding to two leaf springs (321). The upper surface and the lower surface of the second connecting block (342) are provided with notches (346), the first connecting block (341) and the third connecting block (343) extend to the second connecting block (342) and are located in the corresponding notches (346) respectively.

2. The adjustable horizontal stiffness structure of claim 1, wherein: The rotating part (35) comprises a first gear (351) and a second gear (352), the first gear (351) is rotatably connected on the fixed column (31), the second gear (352) is fixedly connected with one side of the first connecting block (341), the second connecting block (342) and the third connecting block (343) after locking, and is engaged with the first gear (351).

3. The adjustable horizontal stiffness structure of claim 2, wherein: The first gear (351) and the second gear (352) are both herringbone gears.

4. The adjustable horizontal stiffness structure of claim 3, wherein: ​ 5. The adjustable horizontal stiffness structure of claim 3, wherein: ​ 6. A structure with adjustable horizontal stiffness according to claim 5, characterized in that: ​

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