Device for enhancing stability of spring

Abstract

The utility model discloses a device for enhancing spring stability, which comprises a spring and a support mechanism, the support mechanism comprises an upper mounting platform, a lower mounting platform and four support legs, the four support legs are respectively mounted at four corners of the platform, and the upper and lower ends of the support legs are respectively connected with the upper mounting platform and the lower mounting platform. The springs are installed in the supporting mechanisms, the top ends of the springs are connected with the bottom face of the upper installation platform, the bottom ends of the springs are connected with the top face of the lower installation platform, and in the compression process of the springs, the upper installation platform and the lower installation platform move oppositely, and the supporting legs at the four corners of the platform are folded. The springs and the supporting legs do not interfere with each other. According to the utility model, a plurality of supporting mechanisms are combined and overlapped, so that the super-long spring can be constructed, the springs among the mechanisms are mutually isolated, and all the springs work together in the working process of the springs, so that the defect that the super-long spring is easy to lose stability is overcome, and the super-long spring can be suitable for various occasions needing the super-long spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring devices, and in particular relates to a device for enhancing spring stability. Background Art

[0002] With the development of economy and technology, springs are needed in more and more occasions, relying on the elasticity of springs to achieve functions such as energy absorption, load-bearing, pressure resistance and shock absorption. In response to these needs, people have developed springs of various functional models and sizes, which are widely used in various machinery, transportation, aerospace, aviation and other fields. The spring force is proportional to the length. With the continuous changes in demand, the demand for the use of extra-long springs is gradually increasing.

[0003] Traditional springs have certain restrictions on working conditions and have relatively strict standards for spring length. The use of extra-long springs has some difficult-to-solve problems. For example, the spring cannot be infinitely longer due to actual material problems; in actual use, it is limited by critical loads and is prone to instability, bending and displacement, leading to failure. Utility Model Content

[0004] The purpose of the utility model is to provide a device for enhancing the stability of a spring in view of the deficiencies in the prior art. By combining a spring with a supporting mechanism, the supporting mechanism can provide higher rigidity in the tangential direction and bear a certain oblique force. In the axial direction, the supporting mechanism has higher rigidity. Multiple supporting mechanisms are combined and superimposed to construct an extra-long spring. The springs between the mechanisms are isolated from each other. During the working process of the spring, each spring works together, thus overcoming the defect that the extra-long spring is prone to instability. The utility model is applicable to various occasions requiring an extra-long spring.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical scheme.

[0006] The cam is connected to the bottom surface of the platform and the bottom surface of the platform is fixed with the support leg by the spring, and the spring is connected with the bottom surface of the platform to form a circle around the bottom surface of the platform.

[0007] Specifically, in order to make the spring compression process more stable, the central axis of the spring is collinear with a line connecting the center points of the upper mounting platform and the lower mounting platform.

[0008] Specifically, in order to avoid the situation where the axes of the upper support rod and the lower support rod are in the same straight line after the support legs are fully extended, resulting in the support legs being unable to fold when subjected to pressure perpendicular to the plane of the mounting platform, the length of the spring in a naturally extended state is smaller than the length of the support legs when they are fully extended, so that the spring is in a naturally extended state and the support mechanism is in a slightly folded state to facilitate subsequent compression and folding.

[0009] Specifically, the cross-sectional shape of the upper mounting platform and the lower mounting platform is a regular polygon, and the corresponding number of support legs is consistent with the number of corners of the regular polygon; preferably, the cross-sectional shape of the upper mounting platform and the lower mounting platform can also be a circle, and the corresponding number of support legs can be selected according to actual needs, and the support legs can be distributed in a centrally symmetrical manner around the center of the mounting platform.

[0010] Preferably, there are multiple support mechanisms, which are combined and stacked in the vertical direction. After the combination and stacking, the mounting platforms between two adjacent support mechanisms are fixedly connected, so that the spring can be indirectly extended, avoiding the spring from bending and becoming unstable during compression due to a single spring being too long.

[0011] On the basis of the above scheme, the upper mounting platform and the lower mounting platform are provided with bolt holes at relative positions. After the multiple supporting mechanisms are combined and stacked in the vertical direction, the upper mounting platform and the lower mounting platform between two adjacent supporting mechanisms are fixedly connected by bolts; the combined stacking can make the multiple springs stably connected and used, and there will be no instability and failure caused by a single spring being too long.

[0012] Preferably, in order to prevent the bolt from interfering with the spring after installation, the bolt hole is designed as a countersunk structure, and after the bolt is installed in the bolt hole, the nut of the bolt is located below the plane of the installation platform.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model has a simple structure and is easy to install. The device consists of a support mechanism and a built-in spring. The upper and lower mounting platforms of the support mechanism have a single degree of freedom, are strictly parallel, and have a high structural rigidity, which can enhance the stability of the internal spring.

[0015] 2. The support mechanism of the utility model can resist oblique forces and has high axial rigidity, thereby improving the device's ability to resist axial instability; after the devices are stacked, the springs in each support mechanism are independent of each other, the springs have high stability, and the super-long spring formed after stacking has high overall stability.

[0016] 3. The utility model can lengthen the use length by combining and superimposing the supporting mechanisms, thereby avoiding the instability of a single spring when the length is too long, and effectively improving the disadvantage that the over-long spring is prone to deflection and instability failure when reaching the critical load in the working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a device for enhancing spring stability according to the utility model;

[0019] Figure 2 It is a structural schematic diagram of the support mechanism of the utility model;

[0020] Figure 3 This is a state diagram of the device of the utility model during the compression and contraction process;

[0021] Figure 4 This is a diagram of the expanded state of the device of the utility model;

[0022] Figure 5 It is a schematic diagram of the device combination of the utility model after being superimposed.

[0023] In the figure: 1. spring; 2. supporting mechanism; 3. upper mounting platform; 4. lower mounting platform; 5. supporting legs; 6. upper supporting rod; 7. lower supporting rod; 8. bolt hole. DETAILED DESCRIPTION

[0024] In order to facilitate those skilled in the art to understand and implement the present invention, the following is a detailed description of each step of the method proposed in the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0025] Example 1

[0026] like Figure 1 and Figure 2The support legs 5 are respectively mounted on the four corners of the platform, and the support legs 5 are hinged by an upper support rod 6 and a lower support rod 7. One end of the upper support rod 6 is hinged to the bottom surface of the upper mounting platform 3, and the other end is hinged to one end of the lower support rod 7. The other end of the lower support rod 7 is hinged to the top surface of the lower mounting platform 4. The spring 1 is installed in the area surrounded by the four support legs 5 and the upper mounting platform 3 and the lower mounting platform 4. The top end of the spring 1 is installed and connected to the bottom surface of the upper mounting platform 3, and the bottom end of the spring 1 is installed and connected to the top surface of the lower mounting platform 4. During the compression process of the spring 1, the upper mounting platform 3 and the lower mounting platform 4 move toward each other, and the support legs 5 at the four corners of the platform are folded and retracted accordingly. During the entire compression process, the spring 1 and the support legs 5 do not interfere with each other.

[0027] Specifically, in order to make the spring compression process more stable, the central axis of the spring 1 is collinear with the line connecting the center points of the upper mounting platform 3 and the lower mounting platform 4 .

[0028] In order to prevent the axis of the upper support rod 6 and the lower support rod 7 from being in the same straight line after the support leg 5 is fully extended, causing the support leg 5 to fail to fold when subjected to pressure perpendicular to the plane of the mounting platform, the length of the spring 1 in the naturally extended state is smaller than the length of the support leg 5 when it is fully extended, so that the spring 1 is in the naturally extended state and the support mechanism 2 is in a slightly retracted state to facilitate subsequent compression and retraction.

[0029] It should be noted that, in the present embodiment, the cross-sectional shape of the mounting platform of the support mechanism 2 is a regular quadrilateral. In fact, according to the usage scenario and the requirements of the installation space, the cross-sectional shapes of the upper mounting platform 3 and the lower mounting platform 4 can be regular polygons or even circles. When the cross-sectional shape of the mounting platform is a regular polygon, the corresponding number of the supporting legs 5 is consistent with the number of corners of the polygon. When the cross-sectional shape of the mounting platform is a circle, the corresponding number of the supporting legs can be selected according to actual needs, and the supporting legs can be distributed symmetrically around the center of the mounting platform.

[0030] Working principle and process:

[0031] Figure 3 The device is in the unfolded state. Figure 4 The device is in the compressed and folded state. The working process of the device is a cyclic process. When it is in the expanded state, Figure 3 As shown, the spring 1 is in a naturally extended state, and the support leg 5 is in a slightly retracted state; Figure 4As shown, during the compression of the device, the device installation platform is under pressure, and the support mechanism 2 is retracted under the pressure. During the retraction process, the spring 1 in the support mechanism 2 is compressed and deformed under the pressure. After the pressure is removed, the spring 1 returns to the natural extension state, returning to the state shown in FIG. Figure 3 The expanded state shown in the figure continues the cycle process; during the cycle, the support mechanism 2 can effectively resist oblique forces, and its high axial stiffness improves the device's ability to resist axial instability, improves the stability of the spring 1 inside the support mechanism 2 during compression and return, and reduces the possibility of bending instability.

[0032] Example 2

[0033] like Figure 5 As shown, in this embodiment, there are a plurality of support mechanisms 2, which are combined and stacked in the vertical direction. After the combination and stacking, the mounting platforms between two adjacent support mechanisms 2 are fixedly connected, so that the spring 1 can be indirectly extended, thereby avoiding the spring 1 from being easily bent and unstable during the compression process due to the excessive length of a single spring 1.

[0034] Specifically, the upper mounting platform 3 and the lower mounting platform 4 are provided with bolt holes 8 at relative positions. After the multiple support mechanisms 2 are combined and stacked in the vertical direction, the upper mounting platform 3 and the lower mounting platform 4 between two adjacent support mechanisms 2 are fixedly connected by bolts; the combined stacking can make the multiple springs 1 stably connected and used, and there will be no instability and failure caused by a single spring 1 being too long.

[0035] Preferably, in order to prevent the bolt from interfering with the spring after installation, the bolt hole 8 is designed as a countersunk structure. After the bolt is installed in the bolt hole 8, the nut of the bolt is located below the plane of the installation platform.

[0036] Working principle and process:

[0037] In the present embodiment, in the combined and superimposed device, the working principle and process of each supporting mechanism 2 and spring 1 inside it are consistent with those in Example 1. The difference lies in that, by combining and superimposing a plurality of supporting mechanisms 2, an extra-long spring is constructed, which can avoid the problem of a single spring being too long and prone to bending and becoming unstable during compression while extending the effective length of the spring 1.

[0038] In summary, the utility model combines the spring 1 with the support mechanism 2. In the tangential direction, the support mechanism 2 can provide higher rigidity and bear a certain oblique force. In the axial direction, the support mechanism 2 has higher rigidity, which can effectively improve the stability of the spring 1 in the support mechanism 2. Multiple support mechanisms 2 are combined and superimposed to construct an extra-long spring. The springs 1 between the mechanisms are isolated from each other. During the working process of the spring 1, each spring 1 works together, which overcomes the defect that the extra-long spring is prone to instability. The utility model is suitable for various occasions requiring an extra-long spring.

[0039] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A device for enhancing spring stability, characterized in that: The invention comprises a spring (1) and a support mechanism (2), wherein the support mechanism (2) comprises an upper mounting platform (3), a lower mounting platform (4) and four support legs (5) connected to the upper mounting platform (3) and the lower mounting platform (4), wherein the four support legs (5) are respectively mounted at four corners of the platforms, and the support legs (5) are formed by hingedly connecting an upper support rod (6) and a lower support rod (7), wherein one end of the upper support rod (6) is hingedly connected to the bottom surface of the upper mounting platform (3), and the other end is hingedly connected to one end of the lower support rod (7), and the other end of the lower support rod (7) is hingedly connected to the bottom surface of the upper mounting platform (3). The top surface of the platform (4) is hinged, and the spring (1) is installed in an area surrounded by four supporting legs (5) and the upper mounting platform (3) and the lower mounting platform (4). The top end of the spring (1) is connected to the bottom surface of the upper mounting platform (3), and the bottom end of the spring (1) is connected to the top surface of the lower mounting platform (4). During the compression process of the spring (1), the upper mounting platform (3) and the lower mounting platform (4) move towards each other, and the supporting legs (5) at the four corners of the platform are folded accordingly. During the entire compression process, the spring (1) and the supporting legs (5) do not interfere with each other.

2. A device for enhancing spring stability according to claim 1, characterized in that: The central axis of the spring (1) is collinear with a line connecting the central points of the upper mounting platform (3) and the lower mounting platform (4).

3. A device for enhancing spring stability according to claim 1, characterized in that: The length of the spring (1) in a naturally extended state is smaller than the length of the supporting leg (5) after it is fully extended.

4. A device for enhancing spring stability according to claim 1, characterized in that: The cross-sectional shapes of the upper mounting platform (3) and the lower mounting platform (4) are regular polygons.

5. A device for enhancing spring stability according to claim 1, characterized in that: There are a plurality of support mechanisms (2), and the plurality of support mechanisms (2) are combined and stacked in the vertical direction. After the combination and stacking, the mounting platforms between two adjacent support mechanisms (2) are fixedly connected, thereby enabling the spring (1) to be indirectly extended, thereby preventing the spring (1) from being easily bent and unstable during the compression process due to a single spring (1) being too long.

6. A device for enhancing spring stability according to claim 5, characterized in that: The upper mounting platform (3) and the lower mounting platform (4) are provided with bolt holes (8) at relative positions, and after the plurality of support mechanisms (2) are combined and stacked in the vertical direction, the upper mounting platform (3) and the lower mounting platform (4) between two adjacent support mechanisms (2) are fixedly connected by bolts.

7. A device for enhancing spring stability according to claim 6, characterized in that: The bolt hole (8) is a countersunk structure, and after the bolt is installed in the bolt hole (8), the nut of the bolt is located below the plane of the installation platform.

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