A quick-connect hydraulic pipe fitting

CN224706529UActive Publication Date: 2026-09-01ZHEJIANG GUOLIN MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521852285.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-09-01
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

目前,现有的液压管接头大多数需要慢慢对准对接,然后通过旋转螺纹连接,此过程耗时耗力,增加了使用者的负担,存在一定的不足之处

Benefits of technology

[0010]通过采用上述技术方案,本实用新型所取得的有益效果为:本实用设置的定位杆可快速插入定位座的定位孔内,从而使得公接头主体可快速插入母接头主体内,而设置的紧固组件的第二弹簧具有一定的弹性势能,从而使得卡块可快速卡入对接板的卡孔内,达到快速对接的效果,且可直接拽动移动杆,从而使得卡块脱离对接板的卡孔,而后可直接移动公接头主体或母接头主体分离,达到快速拆卸的效果,以便使用,同时设置的第一密封补偿组件的第一弹簧使得密封圈可紧紧地与公接头主体抵接,起到密封补偿的效果,而通过第二密封补偿组件可二次密封,避免液压管泄露。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224706529U_ABST
    Figure CN224706529U_ABST
Patent Text Reader

Abstract

This utility model discloses a quick-connect hydraulic pipe connector, comprising a female connector body, a male connector body, a positioning rod, a mating plate, a positioning seat, a fixing seat, and a fastening assembly. The male connector body is inserted inside the female connector body. The positioning rod is fixedly disposed on the outside of the female connector body, and the mating plate is fixedly disposed on the outside of the female connector body. Both mating plates have locking holes. The positioning seat is fixedly disposed on the outside of the male connector body and has positioning holes. The fixing seat is fixedly disposed on the outside of the male connector body. The fastening assembly includes a fixing plate screwed to the fixing seat, a moving rod inserted through the fixing plate, and a stop fixedly disposed on the moving rod. This utility model, by setting up the positioning rod, mating plate, positioning seat, fixing seat, and fastening assembly, allows for quick connection and disassembly, saving time and effort. Furthermore, by setting up a first sealing compensation assembly and a second sealing compensation assembly, the sealing performance can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a quick-connect hydraulic pipe joint. Background Technology

[0002] Hydraulic pipes are conduits used to transmit hydraulic oil for hydraulic energy transmission and control, and they have wide applications in industrial fields. Hydraulic pipe fittings are key components in hydraulic systems used to connect high-pressure oil pipes, hydraulic components, or pipelines; their performance directly affects the system's sealing, reliability, and safety. Currently, most existing hydraulic pipe fittings require slow alignment and mating, followed by threaded connection via rotation. This process is time-consuming and labor-intensive, increasing the burden on users and presenting certain shortcomings. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a quick-connect hydraulic pipe connector, including a female connector body, a male connector body, a positioning rod, a mating plate, a positioning seat, a fixing seat, and a fastening assembly. The male connector body is inserted inside the female connector body. The positioning rod is fixedly disposed on the outside of the female connector body. The mating plate is fixedly disposed on the outside of the female connector body. Both mating plates have locking holes. The positioning seat is fixedly disposed on the outside of the male connector body. The positioning seat has a positioning hole. The fixing seat is fixedly disposed on the outside of the male connector body. The fastening assembly includes a fixing plate screwed to the fixing seat, a moving rod inserted through the fixing plate, a stop fixedly disposed on the moving rod, a locking block fixedly disposed on the left side of the moving rod, and a second spring fixedly disposed on the locking block and the fixing plate.

[0005] Preferably, the inner side of the female connector body is provided with a first annular groove and a second annular groove from the inside to the outside.

[0006] Preferably, it further includes a first sealing compensation component, which includes a first ring inserted into the first annular groove, a first spring fixedly disposed at the top end of the first ring, a second ring fixedly disposed at the top end of the first spring, and a sealing ring bonded to the top end of the second ring.

[0007] Preferably, it also includes a second sealing compensation component, which is fixedly disposed in the second annular groove. The second sealing compensation component has the same structure as the first sealing compensation component, but the size of the second sealing compensation component is larger than that of the first sealing compensation component.

[0008] Preferably, both of the fixing seats are provided with through holes, and the two fixing seats are symmetrically distributed on the outer side of the male connector body.

[0009] Preferably, two of each of the fixing plate, the stop block, the locking block, and the second spring are provided, and the two locking blocks are inserted into the locking holes.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: the positioning rod of this utility model can be quickly inserted into the positioning hole of the positioning seat, so that the male connector body can be quickly inserted into the female connector body. The second spring of the fastening component has a certain elastic potential energy, so that the locking block can be quickly locked into the locking hole of the docking plate to achieve the effect of quick docking. The moving rod can be pulled directly to make the locking block disengage from the locking hole of the docking plate, and then the male connector body or the female connector body can be directly moved to separate, achieving the effect of quick disassembly for use. At the same time, the first spring of the first sealing compensation component makes the sealing ring tightly abut against the male connector body, achieving the effect of sealing compensation. The second sealing compensation component can provide secondary sealing to prevent hydraulic pipe leakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the structure of the first sealing compensation component; Figure 3 This utility model Figure 1 Schematic diagram of the main structure of the Zhonggong connector; Figure 4 This utility model Figure 1 A schematic diagram of the structure of the central fastening assembly.

[0012] Figure label: 100. Female connector body; 101. First annular groove; 102. Second annular groove; 200. Male connector body; 300. Positioning rod; 400. Connecting plate; 401. Clip hole; 500, First sealing compensation assembly; 501, First ring; 502, First spring; 503, Second ring; 504, Sealing ring; 600. Second sealing compensation assembly; 700, Positioning seat; 701, Positioning hole; 800, Fixing base; 801, Through hole; 900, Fastening assembly; 901, Fixing plate; 902, Moving rod; 903, Stop block; 904, Locking block; 905, Second spring. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0014] The following description, in conjunction with the accompanying drawings, describes some embodiments of this utility model that provide a quick-connect hydraulic pipe fitting. Example

[0015] Reference Figure 1-4 This is the first embodiment of the present utility model. This embodiment provides a quick-connect hydraulic pipe connector, including a female connector body 100, a male connector body 200, a positioning rod 300, a mating plate 400, a positioning seat 700, a fixing seat 800, and a fastening assembly 900.

[0016] Specifically, the inner side of the female connector body 100 is provided with a first annular groove 101 and a second annular groove 102 from the inside to the outside. In use, the first sealing compensation component 500 can be installed in the female connector body 100 through the first annular groove 101, while the second sealing compensation component 600 can be installed in the female connector body 100 through the second annular groove 102.

[0017] Specifically, the male connector body 200 is inserted inside the female connector body 100. In use, the male connector body 200 can be inserted and connected to the female connector body 100 for docking.

[0018] Specifically, the positioning rod 300 is fixedly installed on the outside of the female connector body 100. In use, the positioning rod 300 can be inserted into the positioning seat 700 to achieve the positioning effect, so that the male connector body 200 and the female connector body 100 can be quickly connected.

[0019] Specifically, the mating plate 400 is fixedly installed on the outside of the female connector body 100. Both mating plates 400 are provided with locking holes 401. In use, the mating plate 400 can be mated with the fixing seat 800 so as to be fixed by the fastening component 900. The locking holes 401 can be used in conjunction with the fastening component 900 to fix the male connector body 200 and the female connector body 100.

[0020] Specifically, the positioning seat 700 is fixedly installed on the outside of the male connector body 200. The positioning seat 700 has a positioning hole 701. In use, the positioning rod 300 can pass through the positioning hole 701 to allow the male connector body 200 to quickly connect with the female connector body 100.

[0021] Specifically, the fixing seat 800 is fixedly installed on the outside of the male connector body 200. Both fixing seats 800 are provided with through holes 801. The two fixing seats 800 are symmetrically distributed on the outside of the male connector body 200. In use, the fastening component 900 can be installed through the two fixing seats 800 so as to fix the mating plate 400 and the female connector body 100 through the fastening component 900.

[0022] Specifically, the fastening assembly 900 includes a fixing plate 901 screwed onto the fixing base 800, a moving rod 902 inserted through the fixing plate 901, a stop block 903 fixedly mounted on the moving rod 902, a locking block 904 fixedly mounted on the left side of the moving rod 902, and a second spring 905 fixedly mounted on the locking block 904 and the fixing plate 901. Two fixing plates 901, two stop blocks 903, two locking blocks 904, and two second springs 905 are provided. Both locking blocks 904 are inserted through the locking plate 800. In use, the fixing plate 901 can be fixed to the fixing base 800 with screws inside the hole 401 for easy disassembly and replacement. The moving rod 902 can pull the locking block 904. When the locking block 904 is disengaged from the locking hole 401, the male connector body 200 and the female connector body 100 can be disassembled. When the locking block 904 is engaged in the locking hole 401, the male connector body 200 and the female connector body 100 can be fixed. Then, the second spring 905 can make the locking block 904 automatically engage in the locking hole 401. Example

[0023] Reference Figure 1 and Figure 2 This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes a first sealing compensation component 500. The first sealing compensation component 500 includes a first ring 501 inserted in the first annular groove 101, a first spring 502 fixedly disposed at the top of the first ring 501, a second ring 503 fixedly disposed at the top of the first spring 502, and a sealing ring 504 bonded to the top of the second ring 503. In use, the first spring 502 has a certain elastic potential energy, which allows the sealing ring 504 to tightly abut against the male connector body 200, thereby achieving a sealing compensation effect and preventing hydraulic pipe leakage. Example

[0024] Reference Figure 1This is the third embodiment of the present invention, which differs from the previous two embodiments in that it also includes a second sealing compensation component 600. The second sealing compensation component 600 is fixedly disposed in the second annular groove 102. The second sealing compensation component 600 has the same structure as the first sealing compensation component 500, but the size of the second sealing compensation component 600 is larger than that of the first sealing compensation component 500. In use, the cooperation between the second sealing compensation component 600 and the first sealing compensation component 500 can form a double seal, which greatly improves the sealing effect and avoids hydraulic pipe leakage.

[0025] The working principle and usage process of this utility model are as follows: First, align the positioning rod 300 with the positioning hole 701 of the positioning seat 700 and insert it. After insertion, move the female connector body 100 until it is inserted and connected to the male connector body 200. During insertion, pull the moving rod 902 of the fastening component 900 outwards. The pulled moving rod 902 will pull the locking block 904 until the locking block 904 is hidden in the through hole 801. After insertion, the locking hole 401 of the mating plate 400 will align with the through hole 801. At this time, the moving rod 902 can be released. After release, the locking block 904 will be locked into the locking hole 401, thus fixing the female connector body 100 and the male connector body 200. For disassembly, pull the moving rod 902 to disengage the locking block 904 from the locking hole 401. After disengagement, directly move the male connector body 200 away from the female connector body 100 to disassemble.

[0026] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quick-connect hydraulic pipe fitting, characterized in that, include: Female connector body (100); The male connector body (200) is inserted inside the female connector body (100); The positioning rod (300) is fixedly installed on the outside of the female connector body (100); A mating plate (400) is fixedly disposed on the outside of the female connector body (100), and a locking hole (401) is provided on both mating plates (400). A positioning seat (700) is fixedly disposed on the outside of the male connector body (200), and a positioning hole (701) is provided on the positioning seat (700). A fixing base (800) is fixedly disposed on the outside of the male connector body (200); The fastening assembly (900) includes a fixing plate (901) screwed to the fixing base (800), a moving rod (902) inserted through the fixing plate (901), a stop block (903) fixedly disposed on the moving rod (902), a locking block (904) fixedly disposed on the left side of the moving rod (902), and a second spring (905) fixedly disposed on the locking block (904) and the fixing plate (901).

2. The quick-connect hydraulic pipe fitting according to claim 1, characterized in that, The inner side of the female connector body (100) is provided with a first annular groove (101) and a second annular groove (102) from the inside to the outside.

3. A quick-connect hydraulic pipe fitting according to claim 2, characterized in that, It also includes a first sealing compensation component (500), which includes a first ring (501) inserted in the first annular groove (101), a first spring (502) fixedly disposed at the top of the first ring (501), a second ring (503) fixedly disposed at the top of the first spring (502), and a sealing ring (504) bonded to the top of the second ring (503).

4. A quick-connect hydraulic pipe fitting according to claim 2, characterized in that, It also includes a second sealing compensation component (600), which is fixedly disposed in the second annular groove (102). The second sealing compensation component (600) has the same structure as the first sealing compensation component (500), but the size of the second sealing compensation component (600) is larger than that of the first sealing compensation component (500).

5. A quick-connect hydraulic pipe fitting according to claim 1, characterized in that, Both of the fixing seats (800) are provided with through holes (801), and the two fixing seats (800) are symmetrically distributed on the outside of the male connector body (200).

6. A quick-connect hydraulic pipe fitting according to claim 1, characterized in that, Two of each of the fixed plate (901), stop block (903), locking block (904) and second spring (905) are provided, and the two locking blocks (904) are inserted into the locking hole (401).