Structure with external oil seal

Abstract

The utility model relates to the technical field of pipeline detection robots, and particularly discloses a structure with an external oil seal, which comprises a shell, an oil seal groove is arranged on the outer wall of the shell, an oil seal ring sleeved on a rotating shaft is arranged in the oil seal groove, the outer side wall of the oil seal ring is attached to the side wall of the oil seal groove, and the inner ring of the oil seal ring is attached to the outer wall of the rotating shaft. A cover plate is arranged outside the oil seal ring, and the cover plate and the shell are detachably installed and connected. The oil seal groove used for containing the oil seal ring is formed in the outer wall of the robot shell, then the oil seal ring is fixed through the cover plate which is detachably and fixedly connected, after the oil seal ring is used and abraded, the oil seal ring can be directly replaced outside after the cover plate is dismantled, and the replacement efficiency of the oil seal ring is greatly improved. The problem that an oil seal of a pipeline detection robot in the prior art is difficult to replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection robots, in particular to a structure with an external oil seal. Background Art

[0002] Pipeline inspection is an important maintenance and assessment method that can help determine the current status of the pipeline, identify potential problems such as cracks, corrosion, blockages or structural defects, and provide necessary data support for repair or replacement. Pipeline inspection is a complex process that requires professional equipment and technology, as well as a deep understanding of pipeline systems and inspection technologies.

[0003] Pipeline inspection robots are one of the commonly used equipment. They can enter the inside of the pipeline and are equipped with cameras and other sensors to record and transmit images and data inside the pipeline. In order to isolate the internal and external environments and prevent dirt in the pipeline from entering the robot during the detection process to cause pollution, erosion or damage, the pipeline inspection robot usually has a sealing (oil seal) structure sleeved on the shaft. However, the oil seal will wear out after long-term use, and the sealing performance cannot be guaranteed. The oil seals at the shafts of existing pipeline inspection robots are mostly set inside the robot, making it difficult to replace the oil seals. Utility Model Content

[0004] The technical problem solved by the utility model is that it is difficult to replace the oil seal of the existing pipeline detection robot.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A structure with an external oil seal comprises a shell, an oil seal groove is formed on the outer wall of the shell, an oil seal ring is arranged in the oil seal groove and is sleeved on a rotating shaft, the outer wall of the oil seal ring fits the side wall of the oil seal groove, the inner ring of the oil seal ring fits the outer wall of the rotating shaft, a cover plate is arranged on the outside of the oil seal ring, and the cover plate is detachably connected to the shell.

[0007] In one solution of the utility model: a limiting portion is arranged in the oil seal groove, one end of the oil seal ring abuts against the limiting portion, and the other end abuts against the cover plate.

[0008] In one solution of the utility model: the cover plate is a circular ring structure.

[0009] In one solution of the utility model: an annular groove is provided on the outer wall of the shell, and an annular connecting portion is provided on one side of the cover plate.

[0010] In one solution of the utility model: the cover plate is mounted and connected to the housing by bolts.

[0011] In one solution of the utility model: a countersunk hole is arranged on the cover plate, and the bolt is arranged in the countersunk hole.

[0012] Beneficial effects of the utility model:

[0013] In the present application, an oil seal groove for accommodating an oil seal ring is provided on the outer wall of the robot shell, and the oil seal ring is then fixed by a detachable and fixed cover plate. After the oil seal ring is worn out during use, the cover plate is removed and the oil seal ring can be directly replaced externally, thereby solving the problem that the oil seal of the pipeline inspection robot is difficult to replace in the prior art.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a three-dimensional structural diagram of the utility model pipeline detection robot;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the structure with a partial enlargement at the center;

[0018] Figure 3 It is a schematic cross-sectional structure diagram of a local part of the rotating shaft position of the utility model.

[0019] The reference numerals in the figure are:

[0020] 1. Housing; 2. Rotating shaft; 3. Oil seal; 4. Cover plate. DETAILED DESCRIPTION

[0021] 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 of 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.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] See also Figure 1-3 The utility model is a structure with an external oil seal, including a shell 1, which is the main support structure of the pipeline detection robot, and is used to install various component structures of the detection robot. Multiple rotating shafts 2 can be set on the side of the shell for connecting the moving mechanism of the robot.

[0025] See also Figure 1-3 In one embodiment of the utility model, an oil seal groove is formed on the outer wall of the housing 1, and the position of the oil seal groove is coaxial with the position of the rotating shaft 2. An oil seal ring 3 is provided in the oil seal groove and sleeved on the rotating shaft 2, and the outer wall of the oil seal ring 3 fits the side wall of the oil seal groove, and the inner ring of the oil seal ring 3 fits the outer wall of the rotating shaft 2, so as to effectively seal the rotating shaft 2. A cover plate 4 is provided on the outside of the oil seal ring 3, and the cover plate 4 is detachably connected to the housing 1. The cover plate 4 fixes the oil seal ring 3.

[0026] See also Figure 1-3 In one embodiment of the utility model, a limiting portion may be provided in the oil seal groove, one end of the oil seal ring 3 abuts against the limiting portion, and the other end abuts against the cover plate 4. The position of the oil seal ring 3 is effectively limited by the provision of the annular limiting portion. Both ends of the oil seal ring 3 are in close contact (with the limiting portion and the cover plate 4), effectively ensuring the sealing performance.

[0027] See also Figure 1-3In one embodiment of the utility model, the cover plate 4 can be a circular ring structure. The cover plate 4 can be connected to the housing 1 by a snap structure, a lock tongue structure, a latch structure or a bolt structure. As an example, the cover plate 4 is installed and connected to the housing 1 by bolts to ensure the reliability of the connection of the cover plate 4. Countersunk holes are provided on the cover plate 4, and a plurality of countersunk holes are evenly arranged along the circumference of the cover plate 4, and bolts are provided in the countersunk holes. In this way, the overall flatness of the exterior of the robot is ensured to avoid the bolts being exposed to the outside. Furthermore, a flexible plug body can be provided in the countersunk hole to prevent dirt from entering the countersunk hole and clogging the bolts, making it difficult to disassemble.

[0028] See also Figure 1-3 In one embodiment of the utility model, an annular groove is provided on the outer wall of the shell 1, and an annular connecting portion is provided on one side of the cover plate 4, and the connecting portion matches the annular groove. When connected, the connecting portion is located in the annular groove, which improves the connection stability of the cover plate 4 and ensures the sealing performance of the inner wall gap of the cover plate 4 to reduce leakage.

[0029] The working principle of this utility model:

[0030] In the present application, an oil seal groove for accommodating an oil seal ring 3 is provided on the outer wall of the robot shell 1, and the oil seal ring 3 is then fixed by a detachable and fixed cover plate 4. After the oil seal ring 3 is worn out during use, the cover plate 4 is removed and the oil seal ring 3 can be directly replaced externally, thereby solving the problem that the oil seal of the pipeline inspection robot in the prior art is difficult to replace.

[0031] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the claims of the utility model.

Claims

1. A structure with an external oil seal, comprising a housing (1), characterized in that: An oil seal groove is formed on the outer wall of the housing (1), an oil seal ring (3) sleeved on the rotating shaft (2) is arranged in the oil seal groove, the outer wall of the oil seal ring (3) fits the side wall of the oil seal groove, the inner ring of the oil seal ring (3) fits the outer wall of the rotating shaft (2), a cover plate (4) is arranged outside the oil seal ring (3), and the cover plate (4) is detachably connected to the housing (1).

2. The structure of an external oil seal according to claim 1, characterized in that: A limiting portion is provided in the oil seal groove, one end of the oil seal ring (3) abuts against the limiting portion, and the other end abuts against the cover plate (4).

3. The structure of an external oil seal according to claim 2, characterized in that: The cover plate (4) is a circular ring structure.

4. The structure of an external oil seal according to claim 3, characterized in that: An annular groove is provided on the outer wall of the shell (1), and an annular connecting portion is provided on one side of the cover plate (4).

5. The structure of an external oil seal according to claim 4, characterized in that: The cover plate (4) is mounted and connected to the housing (1) via bolts.

6. The structure of an external oil seal according to claim 5, characterized in that: The cover plate (4) is provided with a countersunk hole, and the bolt is arranged in the countersunk hole.

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