Rigidity-variable combined spring

Abstract

The utility model provides a variable stiffness combined spring, which relates to the technical field of variable stiffness combined springs and comprises a shell, a first pull rod is mounted at the top of the shell, one end of the first pull rod penetrates through the shell and extends into the shell, one end of the first pull rod is connected with a spring seat, a sliding component is mounted in the shell, and the sliding component is connected with the spring seat. A clamping pin assembly is installed between the sliding assembly and the shell, a group of dampers are installed on one side of the spring seat, the surfaces of the group of dampers are all sleeved with springs, a bottom plate is arranged at one ends of the dampers, and a second pull rod is connected to one end of the bottom plate. And through cooperative use of the sliding groove, the sliding block, the first threaded groove, the second threaded groove and the bolt, adjustment can be conveniently conducted according to the use requirement of a vehicle, the use range of the shock absorber is widened, and the practicability is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of variable stiffness combination springs, and more specifically, relates to a variable stiffness combination spring. Background Art

[0002] Spring assemblies are commonly used as mechanical components in modern production and daily life. They are usually used to connect two or more objects with one or more sets of spring parts.

[0003] Based on the above, the inventors have discovered the following problems: existing combination springs can be used in shock absorbers. When passing over uneven roads, the combination springs can filter out road vibrations, but the springs themselves will still have reciprocating motion, and shock absorbers are used to suppress this spring jumping. However, the shock absorption strength of existing shock absorbers cannot be adjusted, thereby reducing the scope of use of the shock absorbers and having certain limitations.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a variable stiffness combination spring is provided to achieve the purpose of having more practical value. Utility Model Content

[0005] The purpose and effect of the variable stiffness combination spring of the utility model are achieved by the following specific technical means:

[0006] A variable stiffness combination spring includes a shell, a pull rod 1 is installed on the top of the shell, one end of the pull rod 1 extends through the shell to the interior, one end of the pull rod 1 is connected to a spring seat, a sliding assembly is installed inside the shell, a pin assembly is installed between the sliding assembly and the shell, a group of dampers are installed on one side of the spring seat, the surfaces of the group of dampers are all covered with springs, one end of the damper is provided with a base plate, and one end of the base plate is connected to pull rod 2.

[0007] Furthermore, the sliding assembly includes a group of sliding grooves opened on the inner wall of the shell, and a group of sliding blocks are installed on the surface of the spring seat, and the sliding blocks match the sliding grooves.

[0008] Furthermore, the pin assembly includes several thread grooves 1 opened on both sides of the shell, and thread groove 2 is opened inside the sliding block. Bolts are installed inside the thread grooves 1 and 2, and the bolts match both the thread grooves 1 and 2.

[0009] Furthermore, a finger ring is installed on one side of the pull rod 1 and the pull rod 2.

[0010] Furthermore, two sides of the spring are connected to the spring seat and the bottom plate respectively.

[0011] Furthermore, the shell is made of steel.

[0012] Furthermore, the shell is made of aluminum alloy.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By using multiple springs and multiple dampers in conjunction with each other, the load can be evenly distributed to multiple springs, thereby improving the load-bearing capacity and stability of the shock absorber.

[0015] Through the coordinated use of the slide groove, the sliding block, the thread groove one, the thread groove two and the bolt, when it is necessary to adjust the shock absorption strength of the shock absorber, the pull rod one is pushed, the spring seat squeezes the spring, and the sliding block slides in the slide groove to limit the spring seat, thereby preventing the spring seat from shifting in position during movement and preventing the thread groove one from being misaligned with the thread groove two. After adjusting the strength of the shock absorber, the bolt is inserted into the thread groove one and the thread groove two to enable the spring to maintain the adjusted elastic force. Through the above design, it is convenient to adjust according to the use requirements of the vehicle, thereby increasing the use range of the shock absorber and further improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a variable stiffness combined spring of the utility model.

[0017] Figure 2 It is a plane schematic diagram of a variable stiffness combined spring of the utility model.

[0018] Figure 3 This utility model is a variable stiffness combined spring Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] Figure 4 It is a three-dimensional schematic diagram of a variable stiffness combined spring sliding assembly of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. Housing; 2. Tie rod 1; 3. Spring seat; 4. Damper; 5. Spring; 6. Base plate; 7. Tie rod 2; 8. Slide groove; 9. Sliding block; 10. Thread groove 1; 11. Thread groove 2; 12. Bolt; 13. Finger ring. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] Example:

[0024] As attached Figure 1 To the attached Figure 4 As shown:

[0025] The utility model provides a variable stiffness combination spring, comprising a shell 1, a pull rod 2 installed on the top of the shell 1, one end of the pull rod 2 extends through the shell 1 to the interior, one end of the pull rod 2 is connected to a spring seat 3, a sliding assembly is installed inside the shell 1, a bayonet assembly is installed between the sliding assembly and the shell 1, a group of dampers 4 are installed on one side of the spring seat 3, a group of dampers 4 are each provided with a spring 5 on the surface, one end of the damper 4 is provided with a base plate 6, one end of the base plate 6 is connected to a pull rod 2 7, and through the coordinated use of multiple springs 5 and multiple dampers 4, the load can be evenly distributed to the multiple springs 5, thereby improving the load-bearing capacity and stability of the shock absorber.

[0026] The sliding assembly includes a set of sliding grooves 8 provided on the inner wall of the housing 1 , and a set of sliding blocks 9 are installed on the surface of the spring seat 3 , and the sliding blocks 9 match the sliding grooves 8 .

[0027] Among them, the pin assembly includes several thread grooves 10 opened on both sides of the shell 1, and a thread groove 2 11 is opened inside the sliding block 9. Bolts 12 are installed inside the thread groove 10 and the thread groove 2 11, and the bolts 12 match the thread groove 10 and the thread groove 2 11. Through the coordinated use of the sliding groove 8, the sliding block 9, the thread groove 10, the thread groove 2 11 and the bolt 12, when it is necessary to adjust the shock absorber strength, the pull rod 1 2 is pushed, the spring seat 3 squeezes the spring 5, and the sliding block 9 slides in the sliding groove 8 to limit the spring seat 3 to prevent the spring seat 3 from positional displacement during movement, resulting in the thread groove 10 and the thread groove 2 11 being unable to align. After adjusting the strength of the shock absorber, the bolt 12 is clamped into the thread groove 10 and the thread groove 2 11, so that the spring 5 can maintain the adjusted elastic force. Through the above design, it is convenient to adjust according to the use requirements of the vehicle, improve the use range of the shock absorber, and further improve the practicality.

[0028] Wherein, a finger ring 13 is installed on one side of the pull rod 1 2 and the pull rod 2 7.

[0029] The two sides of the spring 5 are connected to the spring seat 3 and the bottom plate 6 respectively.

[0030] The shell 1 is made of steel, which has excellent strength and corrosion resistance, can withstand high-intensity dynamic loads and pressure and impact under various working conditions, and is a common choice for manufacturing the shock absorber shell 1.

[0031] The shell 1 is made of aluminum alloy. The use of aluminum alloy helps to reduce the overall weight and improve the fuel efficiency and performance of the vehicle or equipment. At the same time, it can effectively dissipate heat, which contributes to the long-term stability and performance of the shock absorber.

[0032] The specific usage and function of this embodiment are as follows:

[0033] During use of the present invention, the integrity of the device is first confirmed. When the shock absorber strength needs to be adjusted according to the use requirements of the vehicle, the pull rod 2 is pushed, the spring seat 3 squeezes the spring 5, and the sliding block 9 slides in the sliding groove 8 to limit the spring seat 3 to prevent the spring seat 3 from shifting in position during movement, resulting in the situation that the thread groove 10 and the thread groove 2 11 cannot be aligned. After adjusting the strength of the shock absorber, the bolt 12 is inserted into the thread groove 10 and the thread groove 2 11 to enable the spring 5 to maintain the adjusted elastic force. When the strength needs to be changed, the bolt 12 is turned and the bolt 12 is removed from the thread groove 10 and the thread groove 2 11. The above operation is repeated. After adjusting the strength, the bolt 12 is tightened. Through the above design, it is convenient to adjust according to the use requirements of the vehicle, the use range of the shock absorber is improved, and the practicality is further improved.

[0034] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A variable stiffness combination spring, comprising a housing (1), characterized in that: A pull rod (2) is installed on the top of the shell (1), one end of the pull rod (2) passes through the shell (1) and extends to the inside, one end of the pull rod (2) is connected to a spring seat (3), a sliding assembly is installed inside the shell (1), a latch assembly is installed between the sliding assembly and the shell (1), a group of dampers (4) are installed on one side of the spring seat (3), the surface of each group of dampers (4) is covered with a spring (5), one end of the damper (4) is provided with a base plate (6), and one end of the base plate (6) is connected to a pull rod (7).

2. A variable stiffness combination spring according to claim 1, characterized in that: The sliding assembly comprises a group of sliding grooves (8) provided on the inner wall of the housing (1), and a group of sliding blocks (9) are mounted on the surface of the spring seat (3), wherein the sliding blocks (9) match the sliding grooves (8).

3. A variable stiffness combination spring according to claim 2, characterized in that: The latch assembly includes a plurality of thread grooves (10) provided on both sides of the housing (1), a thread groove (11) provided inside the sliding block (9), and bolts (12) installed inside the thread grooves (10) and (11), and the bolts (12) match the thread grooves (10) and (11).

4. The variable stiffness combination spring according to claim 1, wherein: A finger ring (13) is installed on one side of the pull rod 1 (2) and the pull rod 2 (7).

5. The variable stiffness combination spring according to claim 1, characterized in that: Both sides of the spring (5) are connected to the spring seat (3) and the bottom plate (6) respectively.

6. The variable stiffness combination spring according to claim 1, characterized in that: The shell (1) is made of steel.

7. The variable stiffness combination spring according to claim 1, characterized in that: The shell (1) is made of aluminum alloy.

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