CN-224201030-U - Mechanical time-delay telescopic rod

Abstract

The utility model discloses a mechanical time-delay telescopic rod, which is mainly composed of parts such as a sleeve, a telescopic rod, damping grease, a sealing ring and the like. In an initial state, the telescopic rod is pushed into a preset position in the sleeve by external force, and after the external force is relieved, the telescopic rod slowly returns to the original position under the combined action of the spring and the damping grease, so that a timing function is realized. The utility model has simple structure, small volume and low cost.

Inventors

• LI YE
• DING YU
• SHI BIN
• Ba Liling

Assignees

• 南京宏光通用航空装备技术有限公司

Dates

Publication Date

20260505

Application Date

20250422

Claims (6)

1. 1. A mechanical time-delay telescopic rod is characterized by comprising a sleeve (1), a telescopic rod (2), a time-delay damping spring (3) and damping grease (7), wherein the time-delay damping spring (3) and the damping grease (7) are arranged in a damping spring damping grease mounting hole (101) in the sleeve (1), and the telescopic rod (2) is arranged in the damping spring damping grease mounting hole (101) and is in contact with the damping spring (3).
2. 2. The mechanical time-delay telescopic rod according to claim 1, further comprising an o-shaped ring (4), wherein an o-shaped ring mounting groove (201) is formed in one end of the telescopic rod (2), the o-shaped ring (4) is arranged in the o-shaped ring mounting groove (201), and a damping spring damping grease mounting hole (101) is formed in one end of the telescopic rod (2) with the o-shaped ring (4).
3. 3. The mechanical time delay telescopic rod according to claim 1, further comprising a sealing ring (5) and a gasket (6), wherein the gasket (6), the sealing ring (5) and the gasket (6) are sequentially arranged in the gasket sealing ring mounting hole (102) of the sleeve (1) and are pressed against the end face of the gasket sealing ring mounting hole (102).
4. 4. The mechanical delay telescopic rod according to claim 1 or 3 is characterized in that the sleeve (1) is a revolving body, a damping spring damping grease mounting hole (101) and a gasket sealing ring mounting hole (102) are formed in the sleeve (1) from one end face inwards in sequence, and the gasket sealing ring mounting hole (102) is close to the front end face of the sleeve (1) and is larger than the damping spring damping grease mounting hole (101) in diameter.
5. 5. The mechanical delay telescopic rod according to claim 1 or 2, wherein the telescopic rod (2) consists of two revolution bodies with unequal diameters, one end with a larger diameter is matched with the sleeve (1), and an o-shaped ring mounting groove (201) is formed in the side face of one end of the revolution body with the larger diameter.
6. 6. The mechanical delay telescopic rod according to claim 1, wherein the sleeve (1), the telescopic rod (2) and the delay damping spring (3) are made of SUS316N stainless steel 0Cr17Ni12Mo2N, AISI 420F, 630 stainless steel 1.4542, C276 or high-strength aluminum alloy.

Description

Mechanical time-delay telescopic rod Technical Field The utility model relates to the field of mechanical equipment manufacturing, in particular to a mechanical delay telescopic rod. Background In the fields of industrial production, automation equipment, precision instruments, and the like, a reciprocating mechanism is widely used as a common mechanical structure in various mechanical equipment. The telescopic rod is widely applied in the fields of automatic control, mechanical equipment and the like. Conventional telescopic rods usually achieve a length change by a simple mechanical structure, but in practical applications, there is often a specific need for speed control of the telescopic process. For example, cushioned support structures in medical devices, precision instruments, rapid telescoping may cause shock, vibration or instability problems, affecting the use experience and device life. Therefore, it is important to develop a telescopic rod capable of controlling the telescopic speed and realizing the time delay function. Disclosure of Invention The utility model aims to provide a mechanical time-delay telescopic rod. The mechanical delay telescopic rod comprises a sleeve, a telescopic rod, a delay damping spring and damping grease, wherein the delay damping spring and the damping grease are installed in a damping spring damping grease installation hole in the sleeve, and the telescopic rod is installed in the damping spring damping grease installation hole and is in contact with the damping spring. Further, the hydraulic damping device further comprises an o-shaped ring, an o-shaped ring mounting groove is formed in one end of the telescopic rod, the o-shaped ring is mounted in the o-shaped ring mounting groove, and a damping spring damping grease mounting hole is formed in one end of the telescopic rod, provided with the o-shaped ring. Further, the gasket is sequentially arranged in the gasket sealing ring mounting hole of the sleeve, and the gasket, the sealing ring 5 and the gasket are tightly pressed on the end face of the gasket sealing ring mounting hole. Further, the sleeve is a revolution body, a damping spring damping grease installation blind hole and a gasket sealing ring installation blind hole are sequentially formed in the sleeve from one end face inwards, and the gasket sealing ring installation blind hole is close to the front end face of the sleeve and is larger than the damping spring damping grease installation blind hole in diameter. Further, the telescopic rod consists of two rotators with different diameters, one end with a larger diameter is matched with the sleeve, and an o-shaped ring mounting groove is formed in the side face of one end of the rotator with the larger diameter. Further, the sleeve, the telescopic rod and the delay damping spring are made of SUS316N (0 Cr17Ni12Mo 2N), AISI 420F, 630 stainless steel (1.4542), C276 or high-strength aluminum alloy. Compared with the prior art, the utility model has the remarkable advantages that: 1. Accurate time delay control Through the interaction of the precisely designed spring and the high-viscosity damping grease, the precisely controllable time-delay telescoping function is realized. The structure ensures that the landing and the separation processes can be operated according to the preset time and force, and the impact is effectively reduced. 2. High stability, reliability and environmental adaptability The flow resistance of the damping grease provides stable speed control, prevents sudden acceleration or deceleration during telescoping, and ensures the stability of the whole motion. The key parts of the telescopic rod are made of high-strength and corrosion-resistant materials, can stably work for a long time in a severe environment, and the damping grease performance is stable even in extreme environments such as high temperature, low temperature, strong wind and the like. Meanwhile, the surface treatment technology improves the wear resistance of the component and prolongs the service life. 3. Compact and portable structure The telescopic rod adopts an integrated structural design, integrates the spring and the damping system in a compact space, reduces the overall volume, reduces the weight, is convenient to install and transport, and is particularly suitable for the light-weight requirement. 4. Low energy consumption and high efficiency The system mainly relies on the elastic potential energy of the spring and the flow resistance of damping grease to perform energy conversion, external energy input is not needed, and a working mode with low energy consumption and high efficiency is realized. 5. Low cost Compared with a complex electronic or hydraulic system, the telescopic rod adopts a simple mechanical structure, and reduces the manufacturing and maintenance cost. Drawings FIG. 1 is a general view of one embodiment of the mechanism assembly of the present utility model. Fig. 2 is a schematic view of the sleev