CN220851180U - Pipeline assembly - Google Patents

Abstract

The application discloses a pipeline assembly, which comprises a pipeline body; the part of the pipe body comprises a rigid outer pipe and a rigid inner pipe; the rigid outer pipe and the rigid inner pipe are mutually sleeved and connected in a sliding way; the sliding sealing assembly comprises two elastic parts which are integrally formed and extend towards the axial direction and the radial direction of the rigid outer pipe respectively, the two elastic parts respectively press the rigid outer pipe and the rigid inner pipe, the adjacent surfaces of the two elastic parts are connected to form a sealing surface, and the sealing surface seals and shields the contact gap between the rigid outer pipe and the rigid inner pipe. The pipeline assembly can realize local expansion of the pipeline body and meet the sealing requirement of the pipeline, so that the two ends of the pipeline assembly are connected between different devices in a loose, quick, accurate and reliable manner, the requirement of high-precision installation size is met, the maintenance difficulty of the pipeline assembly is reduced, and the impact and vibration of a hydraulic system are relieved.

Description

Pipeline assembly

Technical Field

The application relates to the technical field of hydraulic pressure, in particular to a pipeline assembly.

Background

The hose assembly is an integral part of the hydraulic system.

The hose assembly generally comprises parts such as hose joints, nuts or flanges, hoses, sealing elements and the like, is used for connecting various hydraulic elements in a hydraulic system, plays roles in transmitting hydraulic power media, guaranteeing liquid circulation and transmitting liquid energy, and has the characteristics of absorbing vibration of a pipeline, being convenient to install and replace and the like. Wherein the hose is made of rubber hose woven or wound with high-pressure steel wire and steel fittings.

Under some occasions that installation space is narrow and small, the hose assembly can't install or hardly accurately ensure the installation size, for example, when the hose assembly needs to be installed between two fixed equipment of relative position, if the actual size of hose assembly exists the error with the interval of two aforesaid equipment, but because the size of hose assembly is big, pipeline hardness is high, the both ends of hose assembly are difficult to the accurate laminating of operating personnel to install in two aforesaid equipment, lead to hose assembly and the junction of equipment to appear the oil leak problem easily, influence production efficiency, also hardly adapt to hydraulic system's impact and vibration, lead to the junction of hose assembly and equipment to appear the problem more easily.

In summary, how to improve the installation effect of the hose assembly is a problem to be solved by those skilled in the art.

Disclosure of utility model

The object of the present application is to provide a pipe assembly which can be flexibly installed between specific devices and between which a medium is safely and reliably transported.

In order to achieve the above object, the present application provides a pipe assembly, including a pipe body; the part of the pipe body comprises a rigid outer pipe and a rigid inner pipe; the rigid outer pipe and the rigid inner pipe are mutually sleeved and connected in a sliding way; the sliding sealing assembly comprises two elastic parts which are integrally formed and extend towards the axial direction and the radial direction of the rigid outer pipe respectively, the two elastic parts respectively press the rigid outer pipe and the rigid inner pipe, the adjacent surfaces of the two elastic parts are connected to form a sealing surface, and the sealing surface seals and shields the contact gap between the rigid outer pipe and the rigid inner pipe.

In some embodiments, the sliding seal assembly includes a retaining ring, a first seal ring, and a second seal ring that are co-stuffed between the rigid outer tube and the rigid inner tube; the section of the first sealing ring is cylindrical or elliptic cylindrical, the section of the second sealing ring is L-shaped, and two right-angle sides of the second sealing ring are respectively provided with two elastic parts; the fixed retainer ring and the first sealing ring are respectively attached to two right-angle edges of the second sealing ring.

In some embodiments, more than two sliding seal assemblies are provided between the rigid outer tube and the rigid inner tube; the plurality of second sealing rings face the two axial ends of the rigid outer tube respectively.

In some embodiments, the pipe body comprises a main pipe and a pipe joint arranged at the end of the main pipe; at least one pipe joint includes a rigid outer pipe and a rigid inner pipe.

In some embodiments, the main conduit is a straight tube; pipe joints are respectively arranged at two ends of the main pipeline; both pipe joints are provided with connecting flanges.

In some embodiments, the two pipe joints comprise one elbow joint and one straight pipe joint, the straight pipe joint comprising a rigid outer pipe and a rigid inner pipe.

In some embodiments, the main pipe is a high-pressure wound hose, and the end of the high-pressure wound hose is provided with a threaded sleeve; the rigid inner tube comprises an inner tube body I and an inner tube body II which are communicated with each other, the inner tube body I and the rigid outer tube are sleeved with each other and are in sliding connection, and the inner tube body II penetrates into the end part of the high-pressure winding hose; the surface of the inner pipe body II is provided with external threads, and the threaded sleeve and the inner pipe body II are respectively arranged on the inner side and the outer side of the end part of the high-pressure winding hose and connected by threads.

In some embodiments, both inner tube I and inner tube II are coaxially distributed; a boss is arranged between the inner pipe body I and the inner pipe body II, the outer diameter of the boss is larger than the inner diameter of the end part of the main pipe, and the boss is provided with a limiting surface for blocking the rigid outer pipe from sliding.

In some embodiments, the tube inside of the end of the rigid outer tube and the tube outside of the end of the rigid inner tube are both provided with chamfer surfaces.

In some embodiments, at least a portion of the exterior of the tube is provided with a baffle; the baffle encloses the sliding mating surfaces of both the rigid outer tube and the rigid inner tube.

In contrast to the background art described above, the present application provides a pipe assembly comprising a pipe body; the part of the pipe body comprises a rigid outer pipe and a rigid inner pipe; the rigid outer pipe and the rigid inner pipe are mutually sleeved and connected in a sliding way; the sliding sealing assembly comprises two elastic parts which are integrally formed and extend towards the axial direction and the radial direction of the rigid outer pipe respectively, the two elastic parts respectively press the rigid outer pipe and the rigid inner pipe, the adjacent surfaces of the two elastic parts are connected to form a sealing surface, and the sealing surface seals and shields the contact gap between the rigid outer pipe and the rigid inner pipe.

The pipe assembly provided by the application can realize local expansion and contraction of the pipe body based on the connection relation of the rigid outer pipe and the rigid inner pipe, so that the pipe assembly can be corrected and aligned without great force in the installation process, the pipe assembly with high-precision installation size requirement can be met, and the maintenance difficulty of the pipe assembly is reduced. In addition, the local expansion and contraction characteristics brought by the rigid outer pipe and the rigid inner pipe can also relieve the impact and vibration of the hydraulic system on the pipeline assembly, and improve the maintenance quality of the pipeline assembly.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a piping assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of a portion of a pipe assembly provided in an embodiment of the present application at a rigid outer pipe and a rigid inner pipe.

The device comprises a 1-rigid outer pipe, a 2-rigid inner pipe, a 21-inner pipe body I, a 22-inner pipe body II, a 23-boss, a 3-sliding seal assembly, a 30-elastic part, a 31-fixed retainer ring, a 32-first sealing ring, a 33-second sealing ring, a 4-main pipe, a 5-threaded sleeve and a 6-elbow joint.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a pipe assembly according to an embodiment of the application; FIG. 2 is a schematic view of a portion of a pipe assembly provided in an embodiment of the present application at a rigid outer pipe and a rigid inner pipe.

The application provides a pipeline assembly, which comprises a pipeline body; the part of the pipe body comprises a rigid outer pipe 1 and a rigid inner pipe 2, the rigid outer pipe 1 and the rigid inner pipe 2 are sleeved with each other and are in sliding connection, and a sliding sealing assembly 3 is arranged between the rigid outer pipe 1 and the rigid inner pipe 2; the sliding seal assembly 3 may comprise two integrally formed elastic parts 30, wherein the two elastic parts 30 extend in the axial direction and the radial direction of the rigid outer tube 1 respectively, the two elastic parts 30 respectively press the rigid outer tube 1 and the rigid inner tube 2, and adjacent surfaces of the two elastic parts 30 are jointed to form a sealing surface, and the sealing surface seals and shields a contact gap between the rigid outer tube 1 and the rigid inner tube 2.

In the pipeline assembly, the rigid outer pipe 1 and the rigid inner pipe 2 are connected in a sliding sealing mode through the sliding sealing assembly 3, so that the pipeline body can meet the transportation requirement of a medium in the pipeline, and the local size of the pipeline body can be adjusted, and the installation requirement and the operation requirement of the pipeline body are met.

The rigid outer pipe 1 and the rigid inner pipe 2 can meet the installation requirement of a pipe body, namely, when two ends of the pipeline assembly provided by the application are required to be respectively connected with two relatively fixed external devices in a working site, the pipeline assembly can adjust the rigid outer pipe 1 and the rigid inner pipe 2 to enable the rigid outer pipe 1 and the rigid inner pipe 2 to slide relatively, so that the length of the pipeline assembly along the sliding direction of the rigid outer pipe 1 and the rigid inner pipe 2 is changed, and the two ends of the pipeline assembly can be connected with the two relatively fixed external devices.

The rigid outer pipe 1 and the rigid inner pipe 2 can meet the operation requirement of the pipe body, namely, as the rigid outer pipe 1 and the rigid inner pipe 2 can slide relatively, if the medium in the pipeline generates larger impact on the pipeline, the rigid outer pipe 1 and the rigid inner pipe 2 can absorb the impact of the medium on the pipeline through the relative sliding, so that the damage to the pipeline due to overlarge impact of the medium on the pipeline is avoided.

In this duct assembly, the two elastic parts 30 of the sliding seal assembly 3 are integrally formed; one elastic part 30 of the sliding seal assembly 3 extends towards the axial direction of the rigid outer tube 1, the other elastic part 30 extends towards the radial direction of the rigid outer tube 1, and the two elastic parts 30 respectively press the rigid outer tube 1 and the rigid inner tube 2, so that sealing packing is realized between sliding contact surfaces of the rigid outer tube 1 and the rigid inner tube 2; adjacent surfaces of the two elastic parts 30 of the sliding seal assembly 3 are joined to form a sealing surface which seals a contact gap of the rigid outer tube 1 and the rigid inner tube 2, thereby sealing the rigid outer tube 1 and the rigid inner tube 2. The sliding seal assembly 3 utilizes the two elastic parts 30 to respectively realize axial seal and radial seal on the rigid outer tube 1 and the rigid inner tube 2, and fully ensures the tightness of the rigid outer tube 1 and the rigid inner tube 2.

In summary, the pipe assembly provided by the application can realize local expansion and contraction of the pipe body by utilizing the rigid outer pipe 1 and the rigid inner pipe 2, can meet the requirement of high-precision installation dimension, can correct and align the pipe assembly without great force in the installation process, and reduces the maintenance difficulty of the pipe assembly; the hydraulic system can effectively relieve impact and vibration caused by the hydraulic system to the pipeline assembly, and the maintenance quality of the pipeline assembly is improved.

The pipe assembly provided by the application is further described below with reference to the drawings and the embodiments.

In some embodiments, the sliding seal assembly 3 may include a fixed retainer ring 31, a first seal ring 32, and a second seal ring 33; the fixing collar 31, the first sealing ring 32 and the second sealing ring 33 are jointly stuffed between the rigid outer tube 1 and the rigid inner tube 2.

Referring to fig. 2, in the above embodiment, the cross section of the first sealing ring 32 is cylindrical or elliptical, the cross section of the second sealing ring 33 is L-shaped, two right-angle sides of the second sealing ring 33 are two elastic parts 30 respectively, and the fixing collar 31 and the first sealing ring 32 are respectively abutted against two right-angle sides of the second sealing ring 33.

Two right-angle edges of the second sealing ring 33 are respectively two elastic parts 30, and adjacent surfaces of the two elastic parts 30 are joined to form a sealing surface, so that the local surface of the second sealing ring 33 is a sealing surface, and the second sealing surface is used for sealing and shielding a contact gap between the rigid outer pipe 1 and the rigid inner pipe 2, so that the rigid outer pipe 1 and the rigid inner pipe 2 are sealed.

The fixed retainer ring 31, the first sealing ring 32 and the second sealing ring 33 are assembled together to form the sliding seal assembly 3, so that a certain holding force can be provided for the rigid outer pipe 1 and the rigid inner pipe 2, the axial sealing performance and the radial sealing performance of the sliding seal assembly 3 on the rigid outer pipe 1 and the rigid inner pipe 2 can be ensured, and the types of the fixed retainer ring 31, the first sealing ring 32 and the second sealing ring 33 can be conveniently changed to adapt to the installation requirements and the operation requirements of pipelines in different scenes.

Typically, more than two second sealing rings 33 of the partial sliding seal assemblies 3 are arranged between the rigid outer tube 1 and the rigid inner tube 2 and face one axial end of the rigid outer tube 1, and the second sealing rings 33 of the partial sliding seal assemblies 3 face the other axial end of the rigid outer tube 1, that is, the sealing surfaces of the second sealing rings 33 of at least two sliding seal assemblies 3 are distributed reversely, and are respectively used for preventing substances from leaking along the two axial ends of the rigid outer tube 1, including preventing media in the tube from leaking outwards and preventing foreign substances from penetrating into the tube.

In some embodiments, the pipe body may comprise a main pipe 4 and more than two pipe joints, all provided at each end of the main pipe 4, respectively, at least one pipe joint comprising a rigid outer pipe 1 and a rigid inner pipe 2.

Referring to fig. 1, in the above embodiment, the main pipe 4 is a straight pipe, two ends of the main pipe 4 are respectively provided with a pipe joint, both pipe joints are provided with a connecting flange, and any pipe joint can be connected with an external device in the operation site through the connecting flange. In this embodiment, the rigid outer tube 1 and the rigid inner tube 2 may be slidably connected along the length of the main tube 4. Of course, the sliding direction of the rigid outer pipe 1 and the rigid inner pipe 2 may be inclined to the longitudinal direction of the rigid straight pipe.

On the basis of the above embodiment, the two pipe joints include one elbow joint 6 and one straight pipe joint, that is, one end of the main pipe 4 is connected to the elbow joint 6, and the other end of the main pipe 4 is connected to the straight pipe joint; wherein the straight pipe joint comprises a rigid outer pipe 1 and a rigid inner pipe 2.

As regards the shape configuration of the elbow joint 6, reference is made to fig. 1, as well as to the relevant content of the prior art. Typically, elbow fitting 6 may comprise a conical fitting provided with an annular sealing groove, a nut, and a seal provided in the annular sealing groove.

The main pipe 4 may be a high-pressure winding hose. The end of the high pressure winding hose is provided with a threaded sleeve 5, while the rigid inner tube 2 may comprise an inner tube body I21 and an inner tube body II22 communicating with each other. The inner tube body I21 of the rigid inner tube 2 can be sleeved with the rigid outer tube 1 and connected in a sliding manner, and the inner tube body II22 of the rigid inner tube 2 can penetrate and be connected with the end part of the high-pressure winding hose. The surface of the inner pipe body II22 is provided with external threads, the threaded sleeve 5 and the inner pipe body II22 are respectively arranged on the inner side and the outer side of the end part of the high-pressure winding hose and are in threaded connection, so that the high-pressure winding hose is clamped and fixed, and the high-pressure winding hose is fixedly connected with the rigid inner pipe 2.

In some embodiments, both inner tube I21 and inner tube II22 are coaxially distributed, and a boss 23 is provided between both inner tube I21 and inner tube II 22. In this embodiment, the outer diameter of the boss 23 is larger than the inner diameter of the end of the main pipe 4, so that the rigid inner pipe 2 and the main pipe 4 can be conveniently and accurately inserted, and the relative positional relationship between the rigid inner pipe 2 and the main pipe 4 is ensured. In this embodiment, the boss 23 has a limit surface for blocking the sliding of the rigid outer tube 1, and can restrict the limit sliding distance of the rigid inner tube 2 and the rigid outer tube 1.

In some embodiments, both the end of the rigid outer tube 1 and the end of the rigid inner tube 2 are provided with chamfer surfaces; the chamfer of the rigid outer tube 1 is arranged on the inner side of the end part of the rigid outer tube 1, and the chamfer of the rigid inner tube 2 is arranged on the outer side of the end part of the rigid outer tube 1, so that the rigid outer tube 1 and the rigid inner tube 2 can move relatively conveniently, and the damage to the pipeline caused by the impact of a medium is prevented.

Furthermore, in some embodiments, at least part of the tube body is provided with a baffle, which encloses the sliding fit surfaces of the rigid outer tube 1 and the rigid inner tube 2, so that external impurities can be prevented from contacting the sliding fit surfaces of the rigid outer tube 1 and the rigid inner tube 2, and the relative movement of the rigid outer tube 1 and the rigid inner tube 2 is prevented from being influenced.

The pipe assembly provided by the application is described in detail above. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.

Claims (10)

1. A pipe assembly comprising a pipe body; part of the pipe body comprises a rigid outer pipe (1) and a rigid inner pipe (2); the rigid outer tube (1) and the rigid inner tube (2) are mutually sleeved and connected in a sliding way; the sliding sealing assembly (3) is arranged between the rigid outer tube (1) and the rigid inner tube (2), the sliding sealing assembly (3) comprises two elastic parts (30) which are integrally formed, the two elastic parts (30) respectively extend towards the axial direction and the radial direction of the rigid outer tube (1), the two elastic parts (30) respectively compress the rigid outer tube (1) and the rigid inner tube (2), the adjacent surfaces of the two elastic parts (30) are connected to form a sealing surface, and the sealing surface seals and shields the contact gap between the rigid outer tube (1) and the rigid inner tube (2).

2. The pipe assembly according to claim 1, characterized in that the sliding seal component (3) comprises a fixed collar (31), a first sealing ring (32) and a second sealing ring (33), the fixed collar (31), the first sealing ring (32) and the second sealing ring (33) being co-stuffed between the rigid outer pipe (1) and the rigid inner pipe (2); the section of the first sealing ring (32) is cylindrical or elliptic cylindrical, the section of the second sealing ring (33) is L-shaped, and two right-angle sides of the second sealing ring (33) are respectively two elastic parts (30); the fixed retainer ring (31) and the first sealing ring (32) are respectively abutted against two right-angle edges of the second sealing ring (33).

3. A pipe assembly according to claim 2, characterized in that more than two sliding seal assemblies (3) are provided between the rigid outer pipe (1) and the rigid inner pipe (2); the plurality of second sealing rings (33) are respectively oriented to the two axial ends of the rigid outer tube (1).

4. A pipe assembly according to claim 1, wherein the pipe body comprises a main pipe (4) and a pipe joint provided at an end of the main pipe (4); at least one of the pipe joints comprises the rigid outer pipe (1) and the rigid inner pipe (2).

5. A pipe assembly according to claim 4, wherein the main pipe (4) is a straight pipe; the pipe joints are respectively arranged at two ends of the main pipeline (4); and the two pipe joints are provided with connecting flanges.

6. A pipe assembly according to claim 4, characterized in that two of said pipe joints comprise one elbow joint and one straight pipe joint, said straight pipe joint comprising said rigid outer pipe (1) and said rigid inner pipe (2).

7. A pipe assembly according to any one of claims 4 to 6, characterized in that the main pipe (4) is a high pressure winding hose, the end of which is provided with a threaded sleeve (5); the rigid inner tube (2) comprises an inner tube body I (21) and an inner tube body II (22) which are communicated with each other, the inner tube body I (21) and the rigid outer tube (1) are mutually sleeved and connected in a sliding manner, and the inner tube body II (22) penetrates into the end part of the high-pressure winding hose; the surface of the inner pipe body II (22) is provided with external threads, and the threaded sleeve (5) and the inner pipe body II (22) are respectively arranged on the inner side and the outer side of the end part of the high-pressure winding hose and are connected through threads.

8. The pipe assembly according to claim 7, characterized in that both the inner pipe I (21) and the inner pipe II (22) are coaxially distributed; a boss (23) is arranged between the inner pipe body I (21) and the inner pipe body II (22), the outer diameter of the boss (23) is larger than the inner diameter of the end part of the main pipe (4), and the boss (23) is provided with a limiting surface for blocking the rigid outer pipe (1) from sliding.

9. A pipe assembly according to any one of claims 1 to 5, characterized in that the pipe inner side of the end of the rigid outer pipe (1) and the pipe outer side of the end of the rigid inner pipe (2) are provided with chamfer surfaces.

10. The conduit assembly of claim 9, wherein at least a portion of the exterior of the conduit body is provided with a baffle; the baffle encloses the sliding matching surfaces of the rigid outer pipe (1) and the rigid inner pipe (2).