Oil cylinder dustproof structure

Abstract

The utility model relates to the technical field of oil cylinders, and discloses a dustproof structure of an oil cylinder. Comprising an oil cylinder barrel, an end cover, a piston rod and a connector, the end cover is fixedly connected to the end of the oil cylinder barrel, the rod wall of the piston rod is arranged on the inner wall of the end cover in a sliding mode, the end of the piston rod extends to the outer side of the oil cylinder barrel and is connected with the connector, and the rod wall of the piston rod is fixedly sleeved with a fixing ring; the side wall of the fixing ring is fixedly sleeved with a rubber ring. The rubber ring can be fixedly arranged through the fixing ring, the dustproof sleeve can be stably arranged on the side wall of the rubber ring through the hoop, the connecting ring and the bolt, the stability of the dustproof sleeve can be guaranteed, the rubber ring can be prevented from bending and deforming when moving through the deformation-resistant ring, the use strength of the rubber ring can be improved, and the service life of the dustproof sleeve is prolonged. The dustproof sleeve moves to prevent dust from being attached to the rod wall of the piston rod, and the using effect of the piston rod can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder dustproof structure. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the movement is smooth and it is widely used.

[0003] Among them, the Chinese patent publication number is CN218479997U, which discloses a hydraulic cylinder dustproof structure, belonging to the technical field of hydraulic cylinders, including a hydraulic cylinder body and a piston rod, a mounting plate is fixedly installed on the hydraulic cylinder body, a vertical rod is arranged below the mounting plate, a mounting block is fixedly installed on the side of the vertical rod, and a clamping plate is arranged on the mounting block;

[0004] In the above patents, existing hydraulic cylinders are all equipped with dust rings in the hydraulic cylinders to prevent pollutants adhering to the piston rod from entering the cylinders. Cleaning with the internal dust ring alone may cause pollutants to accumulate at the end cover, resulting in damage to the dust ring, which needs to be improved. Therefore, the utility model designs a dustproof structure for the cylinder. Utility Model Content

[0005] The utility model aims to solve the problem that the existing hydraulic cylinders are all equipped with dustproof rings in the hydraulic cylinders to prevent pollutants adhering to the piston rod from entering the cylinders, and that cleaning by the internal dustproof ring alone may cause pollutants to accumulate at the end cover, resulting in damage to the dustproof ring, and thus proposes a cylinder dustproof structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A dustproof structure for an oil cylinder comprises an oil cylinder barrel, an end cover, a piston rod and a connecting head, wherein the end cover is fixedly connected to the end of the oil cylinder barrel, the rod wall of the piston rod is slidably arranged on the inner wall of the end cover, the end of the piston rod extends to the outside of the oil cylinder barrel and is connected to the connecting head, a fixing ring is fixedly sleeved on the rod wall of the piston rod, a rubber ring is fixedly sleeved on the side wall of the fixing ring, a dustproof sleeve is sleeved on the side wall of the rubber ring, and a clamp is clamped on the tube wall of the dustproof sleeve.

[0008] Preferably, a sealing member is fixedly connected to the inner wall of the end cover, and the sealing member is pressed against the rod wall of the piston rod.

[0009] Preferably, a plurality of anti-deformation rings are fixedly connected to the side wall of the fixing ring, an annular groove matching the plurality of anti-deformation rings is formed on the inner wall of the rubber ring, and the anti-deformation ring extends to the inside of the annular groove.

[0010] Preferably, a connecting ring is fixedly connected to the inner wall of the dustproof sleeve, and a bolt is threadedly connected to the connecting portion of the connecting ring and the rubber ring.

[0011] Preferably, one end of the dustproof sleeve facing away from the rubber ring is fixedly connected with a rubber ring, and the inner wall of the rubber ring is fitted on the wall of the oil cylinder.

[0012] Preferably, a cutout is provided on the side wall of the rubber ring.

[0013] Compared with the prior art, the utility model provides a dustproof structure for an oil cylinder, which has the following beneficial effects:

[0014] 1. The dustproof structure of the oil cylinder can fix the rubber ring through the fixing ring, and the clamp, connecting ring and bolt can stably set the dustproof sleeve on the side wall of the rubber ring, which can ensure the stability of the dustproof sleeve. The anti-deformation ring can prevent the rubber ring from bending and deforming when moving, which can improve the use strength of the rubber ring. The movement of the dustproof sleeve can prevent dust from adhering to the rod wall of the piston rod, which can ensure the use effect of the piston rod.

[0015] 2. The oil cylinder dustproof structure can improve the sealing performance between the dustproof sleeve and the oil cylinder barrel by fitting the inner wall of the rubber ring on the barrel wall of the oil cylinder barrel. The side wall of the rubber ring is provided with a cutout for easy sleeve installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an oil cylinder dustproof structure proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0018] Figure 3 for Figure 1 A three-dimensional diagram of the structure of the middle rubber ring.

[0019] In the figure: 1 cylinder barrel, 2 end cover, 3 seal, 4 piston rod, 5 connector, 6 fixing ring, 7 rubber ring, 8 dust sleeve, 9 clamp, 10 anti-deformation ring, 11 connecting ring, 12 bolt, 13 rubber ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1

[0022] Reference Figure 1-3A dustproof structure for an oil cylinder comprises an oil cylinder barrel 1, an end cover 2, a piston rod 4 and a connector 5. The end cover 2 is fixedly connected to the end of the oil cylinder barrel 1, the rod wall of the piston rod 4 is slidably arranged on the inner wall of the end cover 2, the end of the piston rod 4 extends to the outside of the oil cylinder barrel 1 and is connected to the connector 5, a fixing ring 6 is fixedly sleeved on the rod wall of the piston rod 4, a rubber ring 7 is fixedly sleeved on the side wall of the fixing ring 6, a dustproof sleeve 8 is sleeved on the side wall of the rubber ring 7, and a clamp 9 is clamped on the tube wall of the dustproof sleeve 8.

[0023] A seal 3 is fixedly connected to the inner wall of the end cover 2, and the seal 3 is pressed against the rod wall of the piston rod 4. A plurality of anti-deformation rings 10 are fixedly connected to the side wall of the fixing ring 6. An annular groove matching the plurality of anti-deformation rings 10 is formed on the inner wall of the rubber ring 7. The anti-deformation ring 10 extends to the inside of the annular groove. A connecting ring 11 is fixedly connected to the inner wall of the dustproof sleeve 8, and a bolt 12 is threadedly connected to the connecting portion of the connecting ring 11 and the rubber ring 7.

[0024] When in use, the rubber ring 7 can be fixed by the fixing ring 6, the clamp 9, the connecting ring 11 and the bolt 12 can make the dustproof sleeve 8 stably set on the side wall of the rubber ring 7, so as to ensure the stability of the dustproof sleeve 8, the anti-deformation ring 10 can prevent the rubber ring 7 from bending and deforming when moving, so as to improve the use strength of the rubber ring 7, the movement of the dustproof sleeve 8 can prevent dust from adhering to the rod wall of the piston rod 4, so as to ensure the use effect of the piston rod 4, and at the same time the seal 3 can prevent dust from entering the interior of the cylinder 1.

[0025] Embodiment 2

[0026] Reference Figure 1-3 The end of the dustproof sleeve 8 away from the rubber ring 7 is fixedly connected with a rubber ring 13, the inner wall of the rubber ring 13 is fitted on the wall of the cylinder 1, and a cut is opened on the side wall of the rubber ring 7.

[0027] The inner wall of the rubber ring 13 is fitted on the wall of the oil cylinder 1, which can improve the sealing performance between the dustproof sleeve 8 and the oil cylinder 1. The side wall of the rubber ring 7 is provided with a cutout to facilitate sleeve installation.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dustproof structure for an oil cylinder, comprising an oil cylinder barrel (1), an end cover (2), a piston rod (4) and a connector (5), characterized in that: The end cover (2) is fixedly connected to the end of the oil cylinder barrel (1); the rod wall of the piston rod (4) is slidably arranged on the inner wall of the end cover (2); the end of the piston rod (4) extends to the outside of the oil cylinder barrel (1) and is connected to the connector (5); a fixing ring (6) is fixedly sleeved on the rod wall of the piston rod (4); a rubber ring (7) is fixedly sleeved on the side wall of the fixing ring (6); a dustproof sleeve (8) is sleeved on the side wall of the rubber ring (7); and a clamp (9) is clamped on the tube wall of the dustproof sleeve (8).

2. The oil cylinder dustproof structure according to claim 1, characterized in that: A sealing member (3) is fixedly connected to the inner wall of the end cover (2), and the sealing member (3) is pressed against the rod wall of the piston rod (4).

3. The oil cylinder dustproof structure according to claim 1, characterized in that: A plurality of anti-deformation rings (10) are fixedly connected to the side wall of the fixing ring (6), and an annular groove matching the plurality of anti-deformation rings (10) is formed on the inner wall of the rubber ring (7), and the anti-deformation ring (10) extends to the inside of the annular groove.

4. The oil cylinder dustproof structure according to claim 1, characterized in that: A connecting ring (11) is fixedly connected to the inner wall of the dustproof sleeve (8), and a bolt (12) is threadedly connected to the connection between the connecting ring (11) and the rubber ring (7).

5. The oil cylinder dustproof structure according to claim 1, characterized in that: The end of the dustproof sleeve (8) facing away from the rubber ring (7) is fixedly connected to a rubber ring (13), and the inner wall of the rubber ring (13) is fitted on the wall of the oil cylinder (1).

6. The oil cylinder dustproof structure according to claim 1, characterized in that: A cutout is provided on the side wall of the rubber ring (7).

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