Hydraulic pipe line sealing device

Abstract

The utility model discloses a hydraulic pipeline sealing device in the technical field of hydraulic pipelines of engineering machinery, and aims to solve the problems that in the prior art, the hydraulic pipeline sealing device is difficult to adapt to hydraulic pipelines with different sizes, the requirement for changing the hydraulic pipeline is difficult to meet while the sealing performance is considered, and the hydraulic pipeline is separated from a protection plate. The method comprises the steps that a hydraulic pipe line penetrates in from a first line passing opening and penetrates out from a second line passing opening, and line sealing is achieved; a hydraulic pipe line is adjusted to penetrate in and out of the first line passing opening and the second line passing opening, and the requirement for position change of the pipe line is met under the condition that the sealing capacity is guaranteed; the metal plate provides support for the rubber sealing sheath from the inside, so that the rubber sealing sheath keeps tight, and the first wire passing port and the second wire passing port can clamp and seal hydraulic pipe lines with different calibers; and the sealing device is mounted on the protection plate through the mounting hole, so that the sealing device is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to a sealing device for a hydraulic pipeline, belonging to the technical field of hydraulic pipelines in construction machinery. Background Art

[0002] At present, there are few sealing devices configured in the operator's cab of construction machinery, while in the car cab, components such as sealing rubber rings and sealing strips are generally used. Since many of the sealing devices are one-time measures, when there is a need to change the position of the pipeline, the overall sealing effect is poor. At the same time, the sizes of the existing sealing measures are fixed and lack adjustability. In addition, due to using the self-clamping force of the sealing rubber ring for fixation, there are differences in the thickness of the pipeline protection plates to which they are attached, and there is a relatively high risk of the sealing device falling off. Content of the Utility Model

[0003] The purpose of this application is to overcome the deficiencies in the prior art and provide a sealing device for a hydraulic pipeline that can adapt to different sizes of hydraulic pipelines, meet the need for changing the route of the hydraulic pipeline, and prevent it from falling off the protection plate.

[0004] To achieve the above purpose, the following technical solutions are adopted in this application:

[0005] This application provides a sealing device for a hydraulic pipeline, including

[0006] a metal plate, which is provided with a plurality of mounting holes corresponding to the opening positions of the protection plate;

[0007] a rubber sealing sheath, the inner wall of which matches the inner wall of the metal plate, and the rubber sealing sheath wraps the metal plate; the rubber sealing sheath is respectively provided with a plurality of first wire passing holes and a plurality of second wire passing holes on both sides, the first wire passing holes and the second wire passing holes correspond to each other one by one, and the connection line between the first wire passing holes and the second wire passing holes passes through a wire passing window opened inside the metal plate; the diameters of the first wire passing holes and the second wire passing holes gradually converge from the mutually close ends to the mutually far ends to match the hydraulic pipeline.

[0008] In some embodiments of this application, the outer shapes of the first wire passing holes and the second wire passing holes are wave crest shapes, the bottoms of the wave crest shapes of the first wire passing holes and the second wire passing holes are located at the mutually close ends, and the tops of the wave crest shapes are located at the mutually far ends.

[0009] In some embodiments of this application, the outer shapes of the first wire passing holes and the second wire passing holes are conical shapes, the conical bottoms of the first wire passing holes and the second wire passing holes are located at the mutually close ends, and the conical tops are located at the mutually far ends.

[0010] In some embodiments of the present application, a plugging head is further included. The outer shape of the plugging head matches the caliber of the second wire passing port, and the plugging head is used to plug the second wire passing port.

[0011] In some embodiments of the present application, the metal plate is a rectangular frame skeleton, and the closure of the frame skeleton forms the wire passing window.

[0012] In some embodiments of the present application, mounting holes are respectively opened at the four corner points of the frame skeleton, and the rubber sealing sheath is opened at the position corresponding to the mounting holes.

[0013] In some embodiments of the present application, the material of the metal plate is steel of grade Q235B, Q460C or Q345B.

[0014] In some embodiments of the present application, the material of the rubber sealing sheath is natural rubber, ethylene propylene diene monomer rubber, chloroprene rubber, nitrile butadiene rubber, styrene butadiene rubber, ethylene propylene diene monomer rubber or thermoplastic elastomer material.

[0015] Compared with the prior art, the beneficial effects achieved by the present application are as follows:

[0016] For the hydraulic pipeline sealing device provided by the present application, the hydraulic pipeline passes through from the first wire passing port and exits from the second wire passing port to achieve line sealing; by adjusting the hydraulic pipeline to pass through and exit from different first wire passing ports and second wire passing ports, the requirement for the position change of the pipeline can be met while ensuring the sealing ability; the metal plate provides support for the rubber sealing sheath from the inside, so that the rubber sealing sheath remains tight, so that the first wire passing port and the second wire passing port can clamp and seal hydraulic pipelines of different calibers; the sealing device is installed on the protection plate through the mounting holes to prevent the sealing device from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of the hydraulic pipeline sealing device provided in this embodiment;

[0019] Figure 2 is a schematic structural diagram of the metal plate in the hydraulic pipeline sealing device provided in this embodiment;

[0020] Figure 3 is Figure 1 a side view of

[0021] Figure 4 is Figure 1 the front view of;

[0022] Figure 5 is Figure 3 the top view of;

[0023] Figure 6 is Figure 1 and Figure 2 the position comparison diagram of the rubber sealing sheath and the metal plate in;

[0024] In the figure: 1 - rubber sealing sheath; 2 - metal plate; 2.1 - frame skeleton; 2.2 - wire passing window; 3 - mounting hole; 5 - first wire passing port; 6 - second wire passing port; 7 - plugging head. Specific implementation manner

[0025] Next, the technical solutions in the present application / embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the present application / embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application / embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present application / embodiments of the present application and its application or use. Embodiment 1

[0026] This embodiment provides a hydraulic pipeline sealing device to solve the problems in the prior art that it is difficult to adapt to hydraulic pipelines of different sizes, difficult to meet the change of the hydraulic pipeline route while taking into account the sealing performance, and there is a problem of falling off from the protective plate.

[0027] Referring to Figures 1 to 6 , the hydraulic pipeline sealing device provided in this embodiment includes a metal plate 2, and a plurality of mounting holes 3 are opened in the metal plate 2 corresponding to the opening positions of the protective plate.

[0028] The hydraulic pipeline sealing device further includes a rubber sealing sheath 1. The inner wall of the rubber sealing sheath 1 matches the inner wall of the metal plate 2, and the rubber sealing sheath 1 wraps the metal plate 2; a plurality of first wire passing ports 5 and a plurality of second wire passing ports 6 are respectively opened on both sides of the rubber sealing sheath 1. The first wire passing ports 5 and the second wire passing ports 6 correspond one by one, and the connection line between the first wire passing ports 5 and the second wire passing ports 6 passes through the wire passing window 2.2 opened inside the metal plate 2; the diameters of the first wire passing ports 5 and the second wire passing ports 6 gradually converge from the end close to each other to the end far from each other to match the hydraulic pipeline.

[0029] The metal plate 2 supports the outer shape of the rubber sealing sheath 1 from the inside of the rubber sealing sheath 1, so that the first wire passing port 5 and the second wire passing port 6 opened on the rubber sealing sheath 1 maintain stable positions and are in an elastically tensioned state. When the hydraulic pipeline passes through the first wire passing port 5 and exits from the second wire passing port 6, the first wire passing port 5 and the second wire passing port 6 adaptively seal the hydraulic pipeline based on the elastic force, realizing the sealing of hydraulic pipelines with different calibers. When it is necessary to change the position of the hydraulic pipeline, the hydraulic pipeline is withdrawn from the original first wire passing port 5 and the second wire passing port 6, and then passed through the first wire passing port 5 and the second wire passing port 6 at a newly selected appropriate position to realize the change of the pipeline.

[0030] The metal plate 2 serves as the skeleton of the rubber sealing sheath 1. The metal plate 2 is fixed at the opening position of the protective plate through the mounting holes 3, effectively transmitting the load of the hydraulic pipeline and preventing the sealing device from falling off the protective plate.

[0031] Usage method: Make a metal plate 2 that matches the opening position of the protective plate, or open the opening of the protective plate with reference to the shape of the metal plate 2, and assemble the metal plate 2 and the rubber sealing sheath 1; install the metal plate 2 at the opening position of the protective plate through the mounting holes 3 by means of structures such as bolts and anchoring; pass the hydraulic pipeline through the first wire passing port 5 and exit from the second wire passing port 6 according to requirements.

[0032] The hydraulic pipeline sealing device provided in this embodiment, compared with the existing sealing devices, can adapt to hydraulic pipelines with different calibers, meet the requirement of changing the routing position of the hydraulic pipeline while ensuring the sealing performance remains unchanged, and at the same time effectively support between the sealing device and the protective plate. Embodiment 2

[0033] This embodiment provides a hydraulic pipeline sealing device. This embodiment is optimized on the basis of Embodiment 1 to improve the technical effect and refine the technical solution. For the content not described in detail in this embodiment, please refer to Embodiment 1.

[0034] The applicability of the caliber adaptation scheme relying solely on rubber materials needs to be improved. In a further but non-limiting embodiment of the present application, refer to Figure 1 、 Figure 3 and Figure 5, the outer shapes of the first wire passing port 5 and the second wire passing port 6 are wave-peak-shaped. The bottoms of the wave peaks of the first wire passing port 5 and the second wire passing port 6 are located at one end close to each other, and the tops of the wave peaks are located at one end far from each other. When the caliber of the hydraulic pipeline is small, the rubber layers of the parts of the first wire passing port 5 and the second wire passing port 6 close to the top clamp and seal the hydraulic pipeline; when the caliber of the hydraulic pipeline is large, the rubber layers at the top, close to the waist and even close to the bottom of the first wire passing port 5 and the second wire passing port 6 clamp and seal the hydraulic pipeline; achieving self-adaptation in a larger caliber range. In addition, the outer shapes of the first wire passing port 5 and the second wire passing port 6 can also be conical, with similar effects to the wave-peak shape, and the specific effects will not be elaborated here. The wave-peak shape and the conical shape can also be combined with each other.

[0035] Not all of the second wire passing ports 6 will be used. As one embodiment, refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 , the sealing device further includes a plugging head 7. The outer shape of the plugging head 7 matches the caliber of the second wire passing port 6. The plugging head 7 is used to plug the second wire passing port 6 to prevent foreign objects from entering.

[0036] As one embodiment, refer to Figure 6 , the metal plate 2 is a rectangular frame skeleton 2.1. The closure of the frame skeleton 2.1 forms a wire passing window 2.2, which is conducive to the formation of a group arrangement of the first wire passing port 5 and the second wire passing port 6. As one embodiment, mounting holes 3 are respectively opened at the four corner points of the frame skeleton 2.1, and the rubber sealing sheath 1 is opened at the positions corresponding to the mounting holes 3.

[0037] As one embodiment, the material of the metal plate 2 is steel of grade Q235B, Q460C or Q345B, and the plate thickness is 3 mm. The material of the rubber sealing sheath 1 is rubber plate, which is natural rubber (NR), ethylene propylene diene monomer rubber (EPDM), chloroprene rubber (CR), nitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), ethylene propylene diene monomer rubber (EPDM), thermoplastic elastomer material (TPE / TPV).

[0038] The hydraulic pipeline sealing device provided by this embodiment can effectively improve the assembly efficiency and enhance the reliability of the hydraulic pipeline passing through the wire.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", "provided with", "located", "installed", "set", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances. "Hinged" includes "rotary connection".

[0041] The above is only the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims

1. A hydraulic pipeline sealing device, characterized in that, including a metal plate (2) which is provided with a plurality of mounting holes (3) corresponding to the opening positions of the protective plate a rubber sealing sheath (1), the inner wall of the rubber sealing sheath (1) is matched with the inner wall of the metal plate (2), and the rubber sealing sheath (1) wraps the metal plate (2); the rubber sealing sheath (1) is respectively provided with a plurality of first wire passing openings (5) and a plurality of second wire passing openings (6) on both sides, the first wire passing openings (5) and the second wire passing openings (6) correspond to each other one by one, and the connecting line between the first wire passing openings (5) and the second wire passing openings (6) passes through a wire passing window (2.2) formed inside the metal plate (2); the diameters of the first wire passing openings (5) and the second wire passing openings (6) gradually converge from the ends close to each other to the ends far from each other to match the hydraulic pipeline 2. The hydraulic pipeline sealing device according to claim 1, wherein, the outer shapes of the first wire passing openings (5) and the second wire passing openings (6) are wave crest shapes, the bottoms of the wave crest shapes of the first wire passing openings (5) and the second wire passing openings (6) are located at the ends close to each other, and the tops of the wave crest shapes are located at the ends far from each other 3. The hydraulic pipeline sealing device according to claim 1, characterized in that, the outer shapes of the first wire passing openings (5) and the second wire passing openings (6) are conical, the conical bottoms of the first wire passing openings (5) and the second wire passing openings (6) are located at the ends close to each other, and the conical tops are located at the ends far from each other 4. The hydraulic pipeline sealing device according to claim 1, wherein further including a plugging head (7), the outer shape of the plugging head (7) is matched with the diameter of the second wire passing opening (6), and the plugging head (7) is used for plugging the second wire passing opening (6) 5. The hydraulic pipeline sealing device according to claim 1, wherein the metal plate (2) is a rectangular frame skeleton (2.1), and the closure of the frame skeleton (2.1) forms the wire passing window (2.2) 6. The hydraulic pipeline sealing device according to claim 5, characterized in that, the mounting holes (3) are respectively formed at the four corner points of the frame skeleton (2.1), and the rubber sealing sheath (1) is provided with openings corresponding to the positions of the mounting holes (3) 7. The hydraulic pipeline sealing device according to any one of claims 1 to 6, characterized in that, the material of the metal plate (2) is steel of grade Q235B, Q460C or Q345B 8. The hydraulic pipeline sealing device according to any one of claims 1 to 6, characterized in that, the material of the rubber sealing sheath (1) is natural rubber, ethylene propylene diene monomer rubber, chloroprene rubber, nitrile rubber, styrene butadiene rubber, ethylene propylene diene monomer rubber or thermoplastic elastomer material

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