Movable flange assembly connected with hydraulic oil pipe

By designing a live flange assembly and utilizing internal and external thread connections and screw adjustment, the problem of bolt hole alignment in hydraulic pipe flange connections is solved, achieving convenient installation and reliable sealing.

CN223411678UActive Publication Date: 2025-10-03HUBEI JINLI HYDRAULIC CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423147955.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-10-03
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

When connecting existing hydraulic pipe flanges, it is difficult to ensure that the two flanges are accurately aligned with the bolt holes, resulting in a complicated installation process and poor sealing.

Method used

A movable flange assembly is designed, in which the movable flange is connected to the fixed flange through internal and external threads, and allows angular displacement and axial movement. Combined with screw connection, bolt hole alignment and axial distance adjustment are achieved.

Benefits of technology

It realizes convenient alignment of bolt holes and improves sealing, ensuring reliable connection of hydraulic oil pipes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223411678U_ABST
    Figure CN223411678U_ABST
Patent Text Reader

Abstract

The utility model relates to a movable flange assembly for connecting a hydraulic oil pipe, which comprises an oil outlet pipe, a screw, a fixed flange, a sealing element, a movable flange, a fixed pipe and an oil inlet pipe, and is characterized in that the movable flange rotates on the fixed pipe during assembly, so that not only can angular displacement be generated, but also axial displacement can be generated, and bolt holes of the movable flange and the fixed flange can be conveniently aligned; and the axial distance between the two flanges can be adjusted according to the lengths of the screws, so that the sealing is more reliable.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to a movable flange component for connecting a hydraulic oil pipe. Background Art

[0002] Many hydraulic pipe connections are made with flanges. Often, two flanges are welded to the pipe. It's common for two flanges to be welded together. When connecting multiple pipes in a long pipeline, this method makes it difficult to ensure that each flange is accurately aligned with the bolt hole during the pipe flange connection process. Interchangeability cannot be guaranteed, causing some trouble during the installation process. Therefore, the current hydraulic pipe flange connection has limitations and needs improvement. Utility Model Content

[0003] The purpose of the utility model is to design a movable flange assembly for connecting a hydraulic oil pipe.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a movable flange assembly for connecting a hydraulic oil pipe, comprising: an oil outlet pipe 1, a screw 2, a fixed flange 3, a seal 4, a movable flange 5, a fixed pipe 6 and an oil inlet pipe 7, characterized in that: the oil outlet pipe 1 is fixedly welded to the fixed flange 3, the seal 4 is positioned in the groove of the fixed flange 3, the fixed pipe 6 is positioned in the groove of the fixed flange 3 and fits together with the seal 4, the internal thread 501 of the movable flange 5 is screwed together with the external thread 601 of the fixed pipe 6, the end faces of the fixed flange 3 and the movable flange 5 have a distance and are not fitted together, the movable flange 5 can generate angular displacement on the fixed pipe 6 while also generating axial movement, a plurality of screws 2 pass through the screw holes of the movable flange 5 and are connected to the screw holes of the fixed flange 3, the fixed pipe 6 It is fixedly welded to the oil inlet pipe 7. During assembly, the movable flange 5 rotates on the fixed pipe 6, which can produce not only angular displacement but also axial displacement. It is very convenient to align the bolt holes of the movable flange and the fixed flange, and the axial distance between the two flanges can be adjusted according to the length of the screw to make the seal more reliable.

[0005] The beneficial effects of the utility model are that the bolt holes of the movable flange and the fixed flange can be easily aligned during assembly, and the axial distance between the two flanges can be adjusted according to the length of the screws to make the sealing more reliable.

[0006] The utility model is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Attachment Figure 1 : Structural diagram of a movable flange assembly for connecting hydraulic oil pipes.

[0008] Attachment Figure 2 : A movable flange assembly for connecting a hydraulic oil pipe. Structural diagram of a movable flange.

[0009] Attachment Figure 3 : A structural diagram of a movable flange assembly fixing the hydraulic oil pipe.

[0010] In the attached figure: 1—oil outlet pipe, 2—screw, 3—fixing flange, 4—seal, 5—live flange, 6—fixing pipe, 7—oil inlet pipe, 501—internal thread, 601—external thread. DETAILED DESCRIPTION

[0011] The following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0012] Instructions Figure 1 As shown: the oil outlet pipe 1 and the fixed flange 3 are fixedly welded together.

[0013] Instructions Figure 1 As shown, the sealing member 4 is positioned in the groove of the fixing flange 3 , and the fixing pipe 6 is positioned in the groove of the fixing flange 3 and fits together with the sealing member 4 .

[0014] Instructions Figure 1 As shown, the internal thread 501 of the movable flange 5 is screwed together with the external thread 601 of the fixed pipe 6, so that the movable flange 5 can generate angular displacement and axial movement on the fixed pipe 6.

[0015] Instructions Figure 1 As shown: multiple screws 2 pass through the holes of the movable flange 5 and are connected with the screw holes of the fixed flange 3.

[0016] Instructions Figure 1 As shown: the fixed pipe 6 and the oil inlet pipe 7 are fixedly welded together.

[0017] Instructions Figure 1 As shown: during assembly, the movable flange 5 rotates in the fixed pipe 6, which can produce not only angular displacement but also axial displacement, which can easily align the bolt holes of the movable flange and the fixed flange, and the axial distance between the two flanges can be adjusted according to the length of the screws to make the seal more reliable.

[0018] Instructions Figure 2 As shown: an internal thread 501 is provided on the movable flange 5.

[0019] Instructions Figure 3 As shown: the fixed tube 6 is provided with an external thread 601.

[0020] The operating process of a movable flange assembly for connecting hydraulic oil pipes is as follows: After the fixed pipe 6 and fixed flange 3 are welded to the oil inlet pipe 7 and the oil outlet pipe 1, the movable flange 5 is screwed together with the fixed pipe 6. Multiple screws are used to connect the movable flange 5 and the fixed flange 3. The seal 4 is clamped in the groove between the fixed pipe 6 and the fixed flange 3. The multiple screws 2 are tightened evenly to complete the movable flange assembly for connecting the hydraulic oil pipes. This movable flange assembly for connecting hydraulic oil pipes has a reasonable design, compact structure, and easy operation.

Claims

1. A movable flange assembly for connecting a hydraulic oil pipe, comprising: The oil outlet pipe (1), screws (2), fixed flange (3), seal (4), movable flange (5), fixed pipe (6) and oil inlet pipe (7) are characterized in that: the oil outlet pipe (1) and the fixed flange (3) are fixedly welded together, the seal (4) is positioned in the groove of the fixed flange (3), the fixed pipe (6) is positioned in the groove of the fixed flange (3) and is fitted together with the seal (4), the internal thread (501) of the movable flange (5) is screwed together with the external thread (601) of the fixed pipe (6), the end faces of the fixed flange (3) and the movable flange (5) are spaced apart and are not fitted together, the movable flange (5) can generate angular displacement and axial movement on the fixed pipe (6), a plurality of screws (2) pass through the screw holes of the movable flange (5) and are connected to the screw holes of the fixed flange (3), the fixed pipe (6) ) and the oil inlet pipe (7) are fixedly welded together. When assembling, the movable flange (5) rotates on the fixed pipe (6), which can generate not only angular displacement but also axial displacement. It is very convenient to align the screw holes of the movable flange (5) and the fixed flange (3), and the axial distance between the two flanges can be adjusted according to the length of the screw to make the seal more reliable.