High-performance rubber sealing element for hydraulic system

Abstract

The utility model relates to the technical field of sealing elements. The utility model discloses a high-performance rubber sealing element for a hydraulic system, which comprises a protective shell, an annular assembly plate is fixedly connected to the outer side of the protective shell, a rubber ring is movably mounted on the inner side of the protective shell, and a pressing component is in threaded connection with the outer side of the protective shell. A plurality of rubber rings are placed on the inner side of the protective shell for installation, the protruding portions of the rubber rings face the side close to the pressing assembly, at the moment, the protruding portions of the rubber rings can be exactly clamped in the trapezoidal grooves of the adjacent rubber rings, and when the rubber rings are pressed through the pressing assembly, due to the arrangement of the trapezoidal grooves, the rubber rings extrude one another to generate deformation; and the piston rod is pressed tightly, the overall sealing effect is enhanced, and the rubber ring is installed in the protective shell more stably and is not prone to displacement or looseness through the installation mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing element, specifically to a high -performance rubber sealing element for hydraulic system. BACKGROUND

[0002] In the use process of the hydraulic cylinder, the rubber sealing element as the key component to ensure its normal operation, its sealing performance and stability are crucial, the hydraulic system works, needs the sealing element to prevent the hydraulic oil leakage effectively, to maintain the pressure and work efficiency of the system, also want to resist the invasion of foreign impurities, protect the internal structure of the system.

[0003] At present, the installation mode of the rubber ring in the traditional sealing element is often not stable, in the hydraulic system operation process, due to the vibration and pressure variation produced by the reciprocating motion of the piston rod, the rubber ring is prone to displacement or loosening, leading to the decline of sealing effect, the risk of hydraulic oil leakage increases, and then influences the normal operation and service life of the entire hydraulic system. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a high -performance rubber sealing element for hydraulic system, solves the problem that the vibration and pressure variation produced by the reciprocating motion of the piston rod can cause the rubber ring to loosen.

[0006] (II) technical scheme

[0007] In order to realize the above object, the utility model is realized by the following technical scheme: a high -performance rubber sealing element for hydraulic system, including the protection shell, the outside fixed connection of protection shell has annular assembly board, still including: the inside movable installation of rubber ring of protection shell, the outside screw connection of protection shell has pressure assembly;The pressure assembly includes internal thread sleeve, the inside rotation of internal thread sleeve is connected with the rotating ring, the outside fixed connection of rotating ring has the connecting plate, the outside fixed connection of connecting plate has the sliding shell, the inside fixed connection of sliding shell has the elastic sheet, the outside fixed connection of elastic sheet has the pressure ring, can install the protection shell to the one end of hydraulic cylinder close to hydraulic rod through annular assembly board.

[0008] Preferably, one side of the protection shell is fixedly connected with a dustproof ring, and the other side of the protection shell is fixedly connected with a sealing ring, the dustproof ring is used for preventing dust and other impurities from entering the inside of the protection shell when the piston rod of the hydraulic cylinder is stretched and contracted, and the sealing ring is used for sealing between the protection shell and the hydraulic cylinder.

[0009] Preferably, the inner side of the female threaded sleeve is threadedly connected with the outer side of the protective shell, the outer side of the connecting plate is slidingly connected with the inner wall of the protective shell, and the female threaded sleeve is rotated, and the connecting plate is driven by the rotating ring to slide along the inner wall of the protective shell.

[0010] Preferably, the outer side of the elastic sheet is annularly arranged along the inner side of the sliding shell, the outer side of the sliding shell is slidingly connected with the inner side of the protective shell, and the elastic sheet has elasticity, and in the process that the sliding shell continues to move forward, the elastic sheet is elastically deformed and generates an inward elastic force, so that the compression ring can be more closely attached to the rubber ring.

[0011] Preferably, the rubber ring is linearly arranged along the inner side of the protective shell, the outer side of the rubber ring is in contact with the outer side of the compression ring, the outer side of the rubber ring is fixedly connected with a sealing lip, the compression ring can be more closely attached to the rubber ring, the sealing lip on the outer side of the rubber ring is better attached to the surface of the piston rod, and a trapezoidal groove is formed in the wall of the rubber ring.

[0012] (Three) beneficial effects

[0013] The utility model provides a high performance rubber sealing element for hydraulic system.

[0014] (I), the sealing element is provided with rubber ring, and a plurality of rubber rings are arranged in the installation of the inner side of the protective shell, the protruding part of the rubber ring is towards the side close to the compression assembly, and the protruding part of the rubber ring can be just clamped in the trapezoidal groove of the adjacent rubber ring, when the compression assembly is used to compress it, because the trapezoidal groove is set, the rubber ring is extruded and deformed, and the piston rod is compressed, the sealing effect of the whole is enhanced, the installation of the rubber ring in the protective shell is more stable, and displacement or looseness is not prone to occurring, and simultaneously, the installation mode is convenient for the installation and dismounting of the rubber ring, and the installation efficiency is improved.

[0015] (II), the sealing element is provided with a compression assembly, a female threaded sleeve is rotated, the connecting plate is driven by the rotating ring to slide along the inner wall of the protective shell, the sliding shell moves to the side close to the rubber ring, when the compression ring is pressed on the surface of the rubber ring, because the elastic sheet has elasticity, in the process that the sliding shell continues to move forward, the elastic sheet is elastically deformed and generates an inward elastic force, so that the compression ring can be more closely attached to the rubber ring, the sealing lip on the outer side of the rubber ring is better attached to the surface of the piston rod, and thus the sealing property of the rubber ring can be maintained when the number of rubber rings is changed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is another view structure schematic view of the utility model;

[0018] Figure 3 It is a structure schematic view of the utility model compression assembly;

[0019] Figure 4 It is a structure schematic view of the utility model rubber ring.

[0020] In the figure: 1, protective shell;2, annular assembly plate;3, compression assembly;4, rubber ring;5, dustproof ring;6, sealing lip;7, trapezoidal groove;8, sealing ring;31, internal thread sleeve;32, rotating ring;33, connecting plate;34, sliding shell;35, elastic sheet;36, compression ring. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment: please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of high-performance rubber seal for hydraulic system, including protective shell 1, the outside of protective shell 1 is fixedly connected with annular assembly plate 2, further include: the inside of protective shell 1 movably installs rubber ring 4, the outside of protective shell 1 is threadedly connected with compression assembly 3, one side of protective shell 1 is fixedly connected with dustproof ring 5, the other side of protective shell 1 is fixedly connected with sealing ring 8, annular assembly plate 2 is installed to the one end of hydraulic cylinder close to hydraulic rod with protective shell 1, dustproof ring 5 is used to prevent when the piston rod of hydraulic cylinder is telescopic, dust and other impurities enter the inside of protective shell 1, sealing ring 8 is used to seal between protective shell 1 and hydraulic cylinder.

[0023] The compression assembly 3 comprises an internally threaded sleeve 31, the inner side of the internally threaded sleeve 31 is rotationally connected with a rotating ring 32, the outer side of the rotating ring 32 is fixedly connected with a connecting plate 33, the outer side of the connecting plate 33 is fixedly connected with a sliding shell 34, the inner side of the sliding shell 34 is fixedly connected with an elastic sheet 35, the outer side of the elastic sheet 35 is fixedly connected with a compression ring 36, the inner side of the internally threaded sleeve 31 is threadedly connected with the outer side of the protective shell 1, the outer side of the connecting plate 33 is slidingly connected with the inner wall of the protective shell 1, the outer side of the elastic sheet 35 is annularly arranged along the inner side of the sliding shell 34, the outer side of the sliding shell 34 is slidingly connected with the inner side of the protective shell 1, when the compression assembly 3 is operated, the internally threaded sleeve 31 is rotated, at this time, the internally threaded sleeve 31 drives the connecting plate 33 to slide along the inner wall of the protective shell 1 through the rotating ring 32, and then the sliding shell 34 moves to the side close to the rubber ring 4, when the compression ring 36 is pressed on the surface of the rubber ring 4, because the elastic sheet 35 has a certain elasticity, during the continuous movement of the sliding shell 34, the elastic sheet 35 will be elastically deformed and generate an inward elastic force, so that the compression ring 36 can be more closely attached to the rubber ring 4, and the sealing lip 6 on the outer side of the rubber ring 4 can be better attached to the surface of the piston rod, thereby the sealing property of the rubber ring 4 can be maintained when the number of the rubber ring 4 is changed.

[0024] The rubber rings 4 are linearly arranged along the inner side of the protective shell 1, the outer side of the rubber ring 4 is in contact with the outer side of the compression ring 36, the outer side of the rubber ring 4 is fixedly connected with a sealing lip 6, a trapezoidal groove 7 is formed in the wall of the rubber ring 4, when the rubber ring 4 is installed, a plurality of rubber rings 4 are placed in the inner side of the protective shell 1, the protruding parts of which are towards the side close to the compression assembly 3, at this time, the protruding parts of the rubber ring 4 can be clamped in the trapezoidal groove 7 of the adjacent rubber ring 4, when the rubber ring 4 is compressed by the compression assembly 3, because the trapezoidal groove 7 is formed, the rubber rings 4 are elastically deformed by mutual extrusion, and the piston rod is compressed, thereby the sealing effect is enhanced, this installation mode makes the installation of the rubber ring 4 in the protective shell 1 more stable, and displacement or loosening is less likely to occur. At the same time, this installation mode also facilitates the installation and disassembly of the rubber ring 4, and improves the installation efficiency.

[0025] In use, the protective shell 1 is installed to the end of the hydraulic cylinder close to the hydraulic rod through the annular assembly plate 2, the dust ring 5 is used to prevent dust and impurities from entering the inside of the protective shell 1 when the piston rod of the hydraulic cylinder is extended or retracted, and the sealing ring 8 is used to seal between the protective shell 1 and the hydraulic cylinder.

[0026] When installing the rubber ring 4, the plurality of rubber rings 4 are installed inside the protective shell 1, and the convex parts thereof are directed towards the side close to the compression assembly 3, at this time, the convex parts of the rubber ring 4 can be clamped in the trapezoidal grooves 7 of the adjacent rubber ring 4, when compressed by the compression assembly 3, at this time, due to the trapezoidal grooves 7, the rubber rings 4 are pressed and deformed, and the piston rod is compressed, thereby enhancing the overall sealing effect, and the installation of the rubber ring 4 in the protective shell 1 is more stable and less likely to shift or loosen.

[0027] When operating the compression assembly 3, the inner threaded sleeve 31 is rotated, at this time, the inner threaded sleeve 31 drives the connecting plate 33 to slide along the inner wall of the protective shell 1 through the rotating ring 32, and then the sliding shell 34 moves towards the side close to the rubber ring 4, when the compression ring 36 is pressed on the surface of the rubber ring 4, due to the elasticity of the elastic sheet 35, the elastic sheet 35 is elastically deformed and generates an inward elastic force during the continuous movement of the sliding shell 34, so that the compression ring 36 can be more closely attached to the rubber ring 4, and the sealing lip 6 on the outer side of the rubber ring 4 is better attached to the surface of the piston rod, thereby maintaining the sealing property of the rubber ring 4 when the number of rubber rings 4 is changed.

[0028] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-performance rubber seal for a hydraulic system, comprising a protective shell (1), an annular mounting plate (2) is fixedly connected to the outer side of the protective shell (1), characterized in that, Also include: The inner side of the protective shell (1) is movably mounted with a rubber ring (4), and the outer side of the protective shell (1) is threadedly connected with a compression assembly (3); The compression assembly (3) comprises an internally threaded sleeve (31), the inner side of the internally threaded sleeve (31) is rotatably connected with a rotating ring (32), the outer side of the rotating ring (32) is fixedly connected with a connecting plate (33), the outer side of the connecting plate (33) is fixedly connected with a sliding shell (34), the inner side of the sliding shell (34) is fixedly connected with an elastic sheet (35), and the outer side of the elastic sheet (35) is fixedly connected with a compression ring (36).

2. A high performance rubber seal for a hydraulic system as claimed in claim 1, wherein: The side of the protective shell (1) is fixedly connected with a dustproof ring (5), and the other side of the protective shell (1) is fixedly connected with a sealing ring (8).

3. A high performance rubber seal for a hydraulic system as claimed in claim 1, wherein: The inner side of the internally threaded sleeve (31) is threadedly connected with the outer side of the protective shell (1), and the outer side of the connecting plate (33) is slidably connected with the inner wall of the protective shell (1).

4. A high performance rubber seal for a hydraulic system as claimed in claim 1, wherein: The outer side of the elastic sheet (35) is arranged in a ring along the inner side of the sliding shell (34), and the outer side of the sliding shell (34) is slidably connected with the inner side of the protective shell (1).

5. A high performance rubber seal for a hydraulic system as claimed in claim 1, wherein: The rubber ring (4) is linearly arranged along the inner side of the protective shell (1), and the outer side of the rubber ring (4) is in contact with the outer side of the compression ring (36).

6. A high performance rubber seal for a hydraulic system as claimed in claim 5, wherein: The outer side of the rubber ring (4) is fixedly connected with a sealing lip (6), and a trapezoidal groove (7) is formed in the wall of the rubber ring (4).

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