Auxiliary reset lifting pneumatic rod

Abstract

The utility model discloses an auxiliary reset lifting pneumatic rod which comprises a pneumatic rod barrel and a piston rod, the piston rod is connected in the pneumatic rod barrel in a sliding mode, a fixing protruding piece is arranged at the bottom position in the pneumatic rod barrel, and a round bottom piece is arranged at the bottom of the piston rod. A reset spring is arranged between the circular bottom piece and the fixed protruding piece, and the two ends of the reset spring are wound on the circular bottom piece and the fixed protruding piece respectively. The piston rod is reasonable in structural design and convenient to use, the reset spring can play a pulling role when the piston rod retracts and resets, so that the piston rod can be better reset to the initial position, the guide rod can play an auxiliary supporting role when the piston rod stretches out or retracts, and the piston rod can be better reset to the initial position. And the movement of the piston rod is more stable.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic rods, in particular to an auxiliary resetting lifting pneumatic rod. Background Art

[0002] A pneumatic rod is an industrial accessory that can perform functions such as support, cushioning, braking, height adjustment, and angle adjustment. Its principle is to fill the sealed pneumatic rod cylinder with inert gas or oil-gas mixture, so that the pressure in the cavity is several to dozens of times higher than the atmospheric pressure. The cross-sectional area of the piston rod is smaller than the cross-sectional area of the piston, thereby generating a pressure difference to achieve the movement of the piston rod.

[0003] When resetting the piston rod, the existing pneumatic rod usually reduces the pressure in the pneumatic rod cylinder to reset the piston rod downward. On the one hand, this form makes the piston rod reset more slowly in the absence of external force. On the other hand, it is easy for the piston rod to have position errors when resetting, resulting in incomplete resetting of the piston rod. In addition, the traditional pneumatic rod is also prone to shaking during the movement of the piston rod, which is not conducive to the stable movement of the piston rod. Therefore, it still needs to be improved. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides an auxiliary reset lifting pneumatic rod, including a pneumatic rod cylinder and a piston rod. The piston rod is slidably connected in the pneumatic rod cylinder, and a fixed protrusion is provided at the bottom position of the pneumatic rod cylinder. A circular bottom plate is provided at the bottom of the piston rod, and a reset spring is provided between the circular bottom plate and the fixed protrusion, and the two ends of the reset spring are respectively wound around the circular bottom plate and the fixed protrusion. A cavity is provided on the left and right sides of the pneumatic rod cylinder, and a guide rod is slidably connected in the cavity. A connecting plate is fixedly provided at the front end of the guide rod, and the piston rod passes through the connecting plate and is fixed to the connecting plate.

[0005] Preferably, a buffer ring is embedded on the upper end surface of the pneumatic rod cylinder, the piston rod passes through the buffer ring, and the buffer ring is a hollow structure.

[0006] The beneficial effects of the utility model are as follows: the structure of the utility model is reasonable and easy to use. The setting of the reset spring can play a pulling role when the piston rod retracts and resets, so that the piston rod can be better reset to the initial position. The setting of the guide rod in the utility model can play an auxiliary supporting role when the piston rod is extended or retracted, which can make the movement of the piston rod more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0009] Figure 2 This is a schematic diagram of the cross-sectional structure of the buffer ring of the utility model;

[0010] In the figure: 1. Pneumatic rod cylinder; 2. Piston rod; 3. Circular bottom plate; 4. Cavity; 5. Return spring; 6. Fixed protrusion; 7. Buffer ring; 8. Guide rod; 9. Connecting plate. DETAILED DESCRIPTION

[0011] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0012] Any feature in this specification, unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0013] like Figure 1 、 2 The auxiliary reset lifting pneumatic rod shown includes a pneumatic rod cylinder 1 and a piston rod 2, the piston rod 2 is slidably connected in the pneumatic rod cylinder 1, and a fixed protrusion 6 is provided at the bottom position of the pneumatic rod cylinder 1, and a circular bottom plate 3 is provided at the bottom of the piston rod 2, and a reset spring 5 is provided between the circular bottom plate 3 and the fixed protrusion 6, and the two ends of the reset spring 5 are respectively wound around the circular bottom plate 3 and the fixed protrusion 6, and a cavity 4 is provided on the left and right sides of the pneumatic rod cylinder 1, and a guide rod 8 is slidably connected in the cavity 4, and a connecting plate 9 is fixedly provided at the front end of the guide rod 8, and the piston rod 2 passes through the connecting plate 9 and is fixed to the connecting plate 9.

[0014] A buffer ring 7 is embedded on the upper end surface of the pneumatic rod cylinder 1 , and the piston rod 2 passes through the buffer ring 7 . The buffer ring 7 is a hollow structure.

[0015] During use, the reset spring 5 is set to pull the piston rod when the piston rod 2 is reset, thereby assisting the piston rod 2 to automatically reset to the initial position; the setting of the fixing lug 6 can facilitate the fixing of the reset spring; the setting of the guide rod 8 can move in the same direction as the piston rod 2, so that the movement of the piston rod 2 is more stable; the setting of the buffer ring 7 can play a role in buffering impact when the piston rod 2 is reset; the buffer ring 7 is set to a hollow structure, which can make the buffering effect of the buffer ring 7 better.

[0016] The beneficial effects of the utility model are as follows: the structure of the utility model is reasonable and easy to use. The setting of the reset spring can play a pulling role when the piston rod retracts and resets, so that the piston rod can be better reset to the initial position. The setting of the guide rod in the utility model can play an auxiliary supporting role when the piston rod is extended or retracted, which can make the movement of the piston rod more stable.

[0017] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An auxiliary reset lifting pneumatic rod, comprising a pneumatic rod cylinder (1) and a piston rod (2), wherein the piston rod (2) is slidably connected in the pneumatic rod cylinder (1), characterized in that: A fixing convex piece (6) is provided at the bottom of the pneumatic rod cylinder (1), a circular bottom piece (3) is provided at the bottom of the piston rod (2), a return spring (5) is provided between the circular bottom piece (3) and the fixing convex piece (6), and two ends of the return spring (5) are respectively wound around the circular bottom piece (3) and the fixing convex piece (6), a cavity (4) is provided on the left and right sides of the pneumatic rod cylinder (1), a guide rod (8) is slidably connected in the cavity (4), a connecting plate (9) is fixedly provided at the front end of the guide rod (8), and the piston rod (2) passes through the connecting plate (9) and is fixed to the connecting plate (9).

2. The auxiliary reset lifting pneumatic rod according to claim 1, characterized in that: A buffer ring (7) is embedded on the upper end surface of the pneumatic rod cylinder (1), and the piston rod (2) passes through the buffer ring (7). The buffer ring (7) is a hollow structure.

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