A new type of deflated guide sleeve structure

Abstract

The utility model discloses a novel deflated guide sleeve structure, comprising a cylinder barrel, a guide sleeve fixed to the head end of the cylinder barrel, a circle of wool felt grooves provided on the periphery of the inner side of the guide sleeve, wool felt fixed in the wool felt groove, a first vent hole connected to the inside of the cylinder barrel is provided on one side of the wool felt groove, a second vent hole connected to the outside of the cylinder barrel is provided on the other side of the wool felt groove, and a press-in straight-through oil cup is installed at the outer end of the second vent hole. The gas can be exhausted to the outside of the oil cylinder through the wool felt, but if the gas from the outside of the oil cylinder wants to enter the oil cylinder, the water vapor therein will be absorbed by the wool felt. Thereby, the effect of protecting the inner wall of the oil cylinder is achieved and the service life of the oil cylinder is increased. In terms of manufacturing process, the oil cylinder itself reduces the process of welding the oil nozzle of the cylinder barrel, and also avoids welding deformation caused by welding, thereby increasing production efficiency and quality.

Description

Technical Field

[0001] The utility model relates to the technical field of guide sleeves, in particular to a novel deflable guide sleeve structure. Background Art

[0002] like Figure 1 As shown in the figure, when the rod chamber of a traditional single-acting hydraulic cylinder is vented, a vent valve or air nozzle is assembled on a welded oil nozzle. However, in this structure, in a humid environment, such as rainy weather, the vent valve cannot completely prevent moisture from entering the cylinder. Over time, water vapor enters the rod chamber of the cylinder, causing the cylinder barrel to corrode and rust, which in turn causes the cylinder seal to fail and the cylinder to leak oil. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a novel deflated guide sleeve structure to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A novel deflated guide sleeve structure comprises a cylinder and a guide sleeve fixed to the head end of the cylinder, a circle of wool felt grooves are provided on the inner periphery of the guide sleeve, wool felt is fixed in the wool felt groove, a first air vent connected to the inside of the cylinder is opened on one side of the wool felt groove, a second air vent connected to the outside of the cylinder is opened on the other side of the wool felt groove, and a press-in straight-through oil cup is installed at the outer end of the second air vent.

[0006] Preferably, there is one first ventilation hole and two second ventilation holes.

[0007] Preferably, the diameters of the first vent hole and the second vent hole are both 2.5 mm.

[0008] Preferably, a plurality of groups of first sealing rings are provided on the inner wall of the guide sleeve, and a group of second sealing rings is provided between the guide sleeve and the cylinder barrel.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] This new structure is mainly centered with wool felt, through which the gas can be exhausted to the outside of the oil cylinder. However, if the gas from the outside of the oil cylinder wants to enter the oil cylinder, the wool felt will absorb the water vapor in it. This can protect the inner wall of the oil cylinder and increase the service life of the oil cylinder. In terms of manufacturing technology, the oil cylinder itself reduces the process of welding the oil nozzle of the cylinder barrel, avoids welding deformation caused by welding, and increases production efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of an existing deflation guide sleeve;

[0012] Figure 2 A schematic diagram of the utility model;

[0013] In the figure: 1-cylinder barrel, 2-guide sleeve, 3-wool felt, 4-first vent hole, 5-second vent hole, 6-pressed straight-through oil cup, 7-first sealing ring, 8-second sealing ring. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 2 A novel deflated guide sleeve structure includes a cylinder 1, a guide sleeve 2 fixed to the head end of the cylinder, a circle of wool felt grooves are arranged on the periphery of the inner side of the guide sleeve 2, a wool felt 3 is fixed in the wool felt groove, a first vent hole 4 connected to the inside of the cylinder is opened on one side of the wool felt groove, two second vent holes 5 connected to the outside of the cylinder are opened on the other side of the wool felt groove, and a press-in straight-through oil cup 6 is installed at the outer end of the two second vent holes 5. The inner wall of the guide sleeve 2 is provided with multiple groups of first sealing rings 7, and the outer wall of the guide sleeve is provided with a group of second sealing rings 8.

[0016] The utility model eliminates the oil nozzle and the vent valve on the cylinder barrel of the oil cylinder. A wool felt groove is added to the guide sleeve, and a customized high-density wool felt is installed inside it. Three 2.5mm air holes are punched on both sides of the wool felt groove, of which one is the first air hole leading to the inside of the oil cylinder, and two are the second air holes leading to the outside of the oil cylinder. This ensures that when the oil cylinder is extended, the exhaust is smooth to the outside, and when it is retracted, the chance of water vapor entering the inside is reduced. Two press-in straight-through oil cups are installed at the two external vent ends. While ensuring the exhaust of the oil cylinder, foreign matter is prevented from entering the small holes and blocking the vent holes.

[0017] This new structure is mainly centered with wool felt, through which the gas can be exhausted to the outside of the oil cylinder. However, if the gas from the outside of the oil cylinder wants to enter the oil cylinder, the wool felt will absorb the water vapor in it. This can protect the inner wall of the oil cylinder and increase the service life of the oil cylinder. In terms of manufacturing technology, the oil cylinder itself reduces the process of welding the oil nozzle of the cylinder barrel, avoids welding deformation caused by welding, and increases production efficiency and quality.

[0018] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel deflated guide sleeve structure, characterized in that: The invention comprises a cylinder (1), a guide sleeve (2) fixed to the front end of the cylinder, a wool felt groove is arranged on the periphery of the inner side of the guide sleeve (2), a wool felt (3) is fixed in the wool felt groove, a first vent hole (4) communicating with the inside of the cylinder is opened on one side of the wool felt groove, a second vent hole (5) communicating with the outside of the cylinder is opened on the other side of the wool felt groove, and a press-in straight-through oil cup (6) is installed at the outer end of the second vent hole (5).

2. A novel deflated guide sleeve structure according to claim 1, characterized in that: There is one first ventilation hole (4) and there are two second ventilation holes (5).

3. A novel deflated guide sleeve structure according to claim 2, characterized in that: The diameters of the first vent hole and the second vent hole are both 2.5 mm.

4. A novel deflated guide sleeve structure according to claim 3, characterized in that: The inner wall of the guide sleeve (2) is provided with a plurality of groups of first sealing rings (7), and the outer wall of the guide sleeve is provided with a group of second sealing rings (8).

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