Shock absorber split piston with novel structure

Abstract

A shock absorber split piston of a novel structure is provided with a front piston rod and a rear piston rod, an assembling part is arranged between the front piston rod and the rear piston rod and is an assembling die, an assembling hole is formed in the assembling die, assembling threads are arranged in the assembling hole, and the assembling threads are matched with the assembling hole. External threads are arranged on the front piston rod and the rear piston rod, the problem of secondary clamping of the piston rods cannot be caused during assembly, earlier-stage machining can be conveniently carried out through the split type piston rod, the piston rod is more convenient to transfer, an assembly mold is arranged on the split type piston rod, and the piston rod can be assembled more conveniently. The split piston rod is further assembled through the assembling die, assembling is more convenient, and assembling of the piston rod can be further more stable.

Description

Technical Field

[0001] The utility model relates to a piston component, in particular to a split piston of a novel structured shock absorber. Background Art

[0002] With the continuous improvement of quality requirements in the automotive industry, the performance requirements of OEMs for shock absorbers are also getting higher and higher. The current processing difficulties of shock absorbers have affected the performance of the products. At the same time, the awareness of energy conservation and emission reduction is also increasing. The shock absorber piston is formed by powder metallurgy pressing and needs to be outsourced for machining. The piston body is processed twice, which involves the problem of secondary clamping. There is a piston hole on the piston rod. The burrs adhering to the piston hole fall into the shock absorber and easily cause abnormal noise, resulting in unstable shock absorber performance and high production costs. Therefore, a split piston is directly used, and the piston body is divided into an upper piston and a lower piston. In this way, the piston rod can be divided into two sections, front and back, avoiding the problem of secondary clamping on the piston rod.

[0003] In the prior art: CN202221963200.3 A piston rod connection structure that prevents the piston rod from breaking, comprising: a cylinder barrel, the upper end of the cylinder barrel is fixedly connected to the cylinder head, the piston rod is slidably connected in the cylinder barrel, the bottom end of the piston rod is fixedly connected to the piston through a nut, and sliding grooves are opened on both sides of the piston rod, and both sides of the cylinder barrel are fixedly connected to sliders, and the sliders are slidably connected in the sliding grooves, the upper end of the cylinder head is fixedly connected to the connecting ring, and both sides of the upper end of the connecting ring are fixedly connected to the connecting plates, and the upper ends of the connecting plates are close to each other and are fixedly connected to the limiting ring, and the limiting ring and the piston rod are slidably connected. By arranging the O-ring on the piston, the piston rod has no corresponding groove structure, thereby avoiding the fracture problem caused by stress concentration, and when in use, it can also be through the set limiting ring, connecting plate and connecting ring structure.

[0004] The existing technology avoids the tilting problem caused by the large movement of the piston rod, which facilitates the long-term use of the piston rod. However, there is also the problem that the piston rod is too long, which is inconvenient to process and transport. If the piston rod is a single long strip structure during production, it will cause the secondary assembly to be unstable. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a novel structure of a split piston for a shock absorber.

[0006] The utility model is implemented by the following technical solution: a novel structure shock absorber split piston is provided with a front piston rod and a rear piston rod, an assembly component is provided between the front piston rod and the rear piston rod, the assembly component is an assembly mold, an assembly hole is provided on the assembly mold, an assembly thread is provided in the assembly hole, the front piston rod and the rear piston rod are provided with external threads, the front piston rod and the rear piston rod are fixedly connected to the assembly hole on the assembly mold by means of threads, a locking component is provided on the assembly mold, a locking hole is provided at the top of the assembly mold, a locking component is provided in the locking hole, the locking component is a locking pin, and the locking pin and the locking hole are assembled.

[0007] The assembly mold is provided with a bottom lining plate, the bottom lining plate is provided with a bottom supporting component, and the bottom supporting component is a bottom bracket.

[0008] The bottom bracket is provided with an assembly groove, an assembly cross bar is provided in the assembly groove, and a moving roller is provided on the assembly cross bar.

[0009] The rear piston rod is provided with an assembly end surface, and the assembly end surface is provided with an assembly component, and the assembly component is an assembly slot.

[0010] The assembly slot is provided with limiting protrusions, the limiting protrusions are located on both sides of the assembly slot, and an assembly long axis is provided on the inner wall of the assembly slot.

[0011] Compared with the prior art, the present invention adopts a split structure for the piston rod when in use. The piston rod with such a structure can facilitate the processing of the piston rod and will not cause the problem of secondary clamping of the piston rod during assembly. The split piston rod can also facilitate the early processing and become more convenient when the piston rod is transported. An assembly mold is provided on the split piston rod, and the assembly mold is used to further assemble the split piston rod, which is more convenient during assembly and can further make the assembly of the piston rod more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model;

[0015] In the figure: 1 is the front piston rod, 2 is the rear piston rod, 3 is the assembly mold, 4 is the assembly hole, 5 is the locking pin, 6 is the bottom lining plate, 7 is the bottom lining frame, 8 is the movable roller, 9 is the assembly end face, 10 is the limiting protrusion, 11 is the assembly slot, and 12 is the assembly long axis. DETAILED DESCRIPTION

[0016] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] A new type of structural shock absorber split piston is provided with a front piston rod 1 and a rear piston rod 2. An assembly component is provided between the front piston rod 1 and the rear piston rod 2. The assembly component is an assembly mold 3. An assembly hole 4 is provided on the assembly mold 3. An assembly thread is provided in the assembly hole 4. The front piston rod 1 and the rear piston rod 2 are provided with external threads. The front piston rod 1 and the rear piston rod 2 are fixedly connected to the assembly holes on the assembly mold 3 by means of threads. A locking component is provided on the assembly mold 3. A locking hole 4 is provided at the top of the assembly mold. A locking component is provided in the locking hole 4. The locking component is a locking pin 5. The locking pin 5 and the locking hole 4 are assembled.

[0018] It is necessary to firmly assemble the split piston rod. The split piston rod is divided into a front piston rod 1 and a rear piston rod 2. This way, the piston rod can be divided into two, so that the split piston rod is easy to transport and assemble. When further assembly is needed, the assembly mold 3 can be used to assemble the split piston rod. During assembly, the piston rod and the assembly hole 4 on the assembly mold 3 are further assembled. The assembly is more stable, which facilitates the stable assembly of the piston rod. A bottom lining plate 6 is provided on the bottom lining plate 6. A bottom supporting component is provided on the bottom lining plate 6. The bottom supporting component is a bottom bracket 7.

[0019] During the movement of the piston rod, especially when the piston rod is running in the shock absorber, the piston rod needs to perform reciprocating motion. During the reciprocating motion, the piston rod needs to be moved by the movable roller 8 at the bottom. An assembly groove is provided on the bottom bracket 7, and an assembly cross bar is provided in the assembly groove, and the movable roller 8 is installed on the assembly cross bar.

[0020] An assembly end face 9 is provided on the rear piston rod 2, and an assembly component is provided on the assembly end face 9. The assembly component is an assembly slot 11, and a limiting protrusion 10 is provided on the assembly slot 11. The limiting protrusions 10 are located on both sides of the assembly slot, and an assembly long axis 12 is provided on the inner wall of the assembly slot 11. The rear piston rod needs to be further assembled with connecting components. When assembling the connecting components, the connecting components are assembled in the assembly slot 11, and then the connecting components are further fixed in the assembly slot 11 by relying on the assembly long axis 12, so that the assembly of the connecting components is more stable.

[0021] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A novel structure of a split piston shock absorber, comprising a front piston rod and a rear piston rod, an assembly component being provided between the front and rear piston rods, the assembly component being an assembly mold, the assembly mold being provided with an assembly hole, the assembly hole being provided with an assembly thread, the front and rear piston rods being provided with external threads, the front and rear piston rods being fixedly connected to the assembly hole in the assembly mold by means of threads, and characterized in that: The assembly mold is provided with a locking component, the top of the assembly mold is provided with a locking hole, the locking hole is provided with a locking component, the locking component is a locking pin, and the locking pin and the locking hole are assembled.

2. The novel structured shock absorber split piston according to claim 1 is characterized by: The assembly mold is provided with a bottom lining plate, the bottom lining plate is provided with a bottom supporting component, and the bottom supporting component is a bottom bracket.

3. The novel structure of the shock absorber split piston according to claim 2 is characterized by: The bottom bracket is provided with an assembly groove, an assembly cross bar is provided in the assembly groove, and a moving roller is provided on the assembly cross bar.

4. The novel structured shock absorber split piston according to claim 1 is characterized by: The rear piston rod is provided with an assembly end surface, and the assembly end surface is provided with an assembly component, and the assembly component is an assembly slot.

5. The novel structured shock absorber split piston according to claim 4 is characterized in that: The assembly slot is provided with limiting protrusions, the limiting protrusions are located on both sides of the assembly slot, and an assembly long axis is provided on the inner wall of the assembly slot.

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