Quick detachable collar type transition joint for hydraulic hose

Abstract

The utility model discloses a quick dismounting type locking sleeve type transition joint for hydraulic hose, which comprises an adjusting threaded rod, locking bolts arranged at both ends of the adjusting threaded rod, a movable bolt sleeved on the adjusting threaded rod and an elastic sealing element. The locking bolts are hexagonal structures with internal threads, which are matched with the adjusting threaded rod. The hydraulic hose is connected and sealed by clamping the annular elastic sealing element through the locking bolts at both ends. The elastic sealing element is deformed and filled in the gap under extrusion. The movable bolt is located between the two locking bolts. The fixed bolt above the movable bolt assists in rotating the adjusting threaded rod, which facilitates the dismounting operation. The movable bolt can limit the position of the locking bolt, thereby ensuring the installation accuracy. In addition, the locking bolt is provided with a protrusion to prevent the elastic sealing element from being displaced. In the implementation, the end part of the hydraulic hose is cut by using a special tool, the elastic sealing element (such as nitrile rubber material) is sleeved into the hose, and then each component is installed in sequence. The connection is completed by using a hexagonal wrench and a torque wrench.

Description

Technical Field

[0001] This utility model provides a transition joint, and particularly relates to a quick-release ferrule type transition joint for hydraulic hoses. Background Technology

[0002] Hydraulic hose adapters are key components in hydraulic systems for connecting pipelines and transmitting media. Their main function is to reliably connect hydraulic hoses of different specifications or types, ensuring stable pressure transmission and media delivery within the hydraulic system. Traditional adapters typically employ threaded or snap-fit ​​connections. Their basic structure consists of a main pipe fitting, a seal, and fastening components. The seal is often a simple rubber ring, relying on the compression between the pipe fittings to achieve a seal. The fastening components secure the hose through threaded engagement or snap-fit.

[0003] However, existing hydraulic hose transition joints have several shortcomings. First, the assembly and disassembly process is cumbersome, requiring multiple adjustments for thread tightening or snap-fit ​​engagement, consuming significant time and manpower, and making it difficult to meet the needs of rapid construction. Second, the sealing reliability is poor; the simple rubber rings are prone to aging and deformation under long-term high-pressure conditions, leading to seal failure and media leakage. Third, they lack precise limiting and auxiliary operating structures, resulting in insufficient precision in the fit between components, making them prone to loosening under vibration. Furthermore, the lack of auxiliary devices during adjustment increases the difficulty of operation and the risk of installation errors. These defects severely restrict the application efficiency and reliability of hydraulic hose transition joints under complex working conditions. Utility Model Content

[0004] In order to solve the above problems, this application provides a quick-release ferrule type transition joint for hydraulic hoses, which solves the problems of cumbersome disassembly and assembly, sealing failure, and unstable component fit, and significantly improves connection efficiency and sealing reliability.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quick-release ferrule type transition joint for hydraulic hoses, including an adjusting threaded rod, locking bolts at both ends of the adjusting threaded rod, a movable bolt sleeved on the adjusting threaded rod and located between the two locking bolts, and an elastic sealing element located inside the locking bolts for sealing.

[0006] Preferably, the locking bolt is a hexagonal structure with internal threads, and its internal threads are adapted to the adjusting thread rod. The elastic seal is clamped by the locking bolts at both ends to connect the hydraulic hoses at both ends.

[0007] Preferably, a fixing bolt is provided above the movable bolt and fixedly connected to the adjusting threaded rod;

[0008] The movable bolt is used to limit the position of the locking bolt in one section, and the fixed bolt assists in rotating and adjusting the threaded rod.

[0009] Preferably, the adjusting threaded rod is sleeved outside the elastic seal, and the locking bolt has a protrusion on the end away from the adjusting threaded rod that blocks the elastic seal.

[0010] Preferably, the elastic seal is an annular structure adapted to the clamping space of the locking bolts, and the seal is achieved by the compression deformation of the locking bolts at both ends.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] This hydraulic hose uses a quick-release compression fitting transition joint with an adjusting threaded rod as its core support. Hexagonal locking bolts with internal threads at both ends are threaded to the adjusting threaded rod. When connecting the hydraulic hose, these bolts clamp the inner annular elastic seal, causing it to deform and fill the gap for a seal. A movable bolt, fitted onto the adjusting threaded rod and located between the two locking bolts, limits the position of one locking bolt. A fixed bolt above it assists in rotating the adjusting threaded rod, facilitating disassembly and precise control. A protrusion at the end of the locking bolt away from the adjusting threaded rod prevents the elastic seal from shifting, ensuring stable compatibility, sealing, and connection. Through the synergistic effects of threaded connection, compression sealing, and limiting assistance, the hydraulic hose can be quickly disassembled and reassembled with a stable transition connection.

[0013] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a quick-release compression fitting type transition joint for hydraulic hoses according to the present invention.

[0015] Figure 2 This is an exploded view of a quick-release ferrule type transition joint for hydraulic hoses according to this utility model.

[0016] Figure 3 This is a cross-sectional view of the adjusting threaded tube of a quick-release ferrule type transition joint for hydraulic hoses according to this utility model.

[0017] As shown in the figure:

[0018] 1. Adjusting threaded rod; 2. Locking bolt; 3. Movable bolt; 4. Elastic seal; 5. Fixing bolt; 6. Protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figure 1 and Figure 2 As shown, a quick-release ferrule type transition joint for hydraulic hoses includes an adjusting threaded rod 1, locking bolts 2 at both ends of the rod, a movable bolt 3 fitted onto the adjusting threaded rod 1 and located between the two locking bolts 2, and an elastic sealing element 4 located inside the locking bolts 2 for sealing. The locking bolts 2 are hexagonal structures with internal threads, the internal threads of which are adapted to the adjusting threaded rod 1. The hydraulic hose is connected by clamping the elastic sealing element 4 with the locking bolts 2 at both ends. The elastic sealing element 4 is an annular structure adapted to the clamping space of the locking bolts 2, and achieves sealing by compression deformation. The adjusting threaded rod 1 passes through the elastic sealing element 4, and the end of the locking bolt 2 away from the adjusting threaded rod 1 is provided with a protrusion 6 that blocks the elastic sealing element 4.

[0023] In this implementation scheme, the fixing bolt 5, which is fixedly connected to the adjusting threaded rod 1 above the movable bolt 3, assists the operator in rotating the adjusting threaded rod 1 more conveniently, making the screwing in and out of the locking bolt 2 easier and effectively improving the disassembly and assembly efficiency of the transition joint. The movable bolt 3, sleeved on the adjusting threaded rod 1 and located between the two locking bolts 2, can precisely limit the position of one locking bolt 2, preventing it from moving excessively during adjustment and ensuring installation accuracy and connection stability. At the same time, after the elastic seal 4 is deformed by the locking bolts 2 at both ends, it can tightly fill the gap between the hydraulic hose and the transition joint, significantly improving the sealing performance compared to traditional sealing structures. The protrusion 6 on the locking bolt 2 can effectively block the elastic seal 4, preventing it from shifting or falling off under high pressure, further enhancing the reliability of the seal. Through ingenious structural design and coordinated cooperation, the above components effectively solve the problems of cumbersome disassembly and assembly, sealing failure, and unstable component matching in existing transition joints, greatly improving the efficiency and reliability of hydraulic hose connections.

[0024] like Figure 2 and Figure 3 As shown, a quick-release ferrule type transition connector for hydraulic hoses comprises an adjusting threaded rod 1, locking bolts 2 at both ends, a movable bolt 3 fitted between the two locking bolts 2 on the adjusting threaded rod 1, and an elastic seal 4 on the inner side of the locking bolt 2. Above the movable bolt 3 is a fixing bolt 5 fixed on the adjusting threaded rod 1. The movable bolt 3 limits the position of one locking bolt 2, and the fixing bolt 5 assists in rotating the adjusting threaded rod 1. The adjusting threaded rod 1 passes through the elastic seal 4. The locking bolt 2 has a protrusion 6 at the end away from the adjusting threaded rod 1 to block the elastic seal 4. At the same time, the locking bolt 2 is a hexagonal structure with internal threads, adapted to the adjusting threaded rod 1, and connects the hydraulic hose by clamping the elastic seal 4. The elastic seal 4 is a ring structure that deforms under compression to seal.

[0025] In this implementation scheme, during actual use, the device needs to be used with a special hydraulic hose cutting tool to cut the end of the hose flat, ensuring a tight fit with the elastic seal 4. The elastic seal 4 can be made of nitrile rubber, which has strong oil resistance and is suitable for hydraulic oil environments, effectively preventing media leakage. It also requires the use of conventional tools such as a hex wrench to tighten the locking bolts 2 and fixing bolts 5. The adjusting thread rod 1 is made of 45# steel and has undergone surface galvanizing to enhance its strength and corrosion resistance, ensuring long-term stability. During installation, the hydraulic hose is fitted inside the locking bolts 2. By tightening the locking bolts 2 at both ends, combined with the limiting effect of the movable bolts 3, the elastic seal 4 is fully compressed and deformed to complete the sealing connection. Simultaneously, a torque wrench is used to control the tightening force, ensuring the sealing effect and connection strength, avoiding seal failure or component damage due to excessive tightness or looseness, thereby achieving a fast, stable, and reliable transition connection of the hydraulic hose.

[0026] Specifically, in implementing this solution, firstly, a special hydraulic hose cutting tool is used to cut the end of the hydraulic hose to be connected into a flat, vertical section to ensure a good fit with the elastic seal 4. The elastic seal 4 is made of nitrile rubber with excellent oil resistance and is pre-fitted onto the end of the hydraulic hose. Then, the adjusting threaded rod 1 is inserted through the elastic seal 4. This adjusting threaded rod 1 is made of 45# steel and galvanized to ensure high strength and corrosion resistance. The locking bolts 2 with internal threads are screwed onto both ends of the adjusting threaded rod 1 through their internal threads. Simultaneously, the movable bolt 3, fitted onto the adjusting threaded rod 1, is placed in a suitable position between the two locking bolts 2. Then, the fixing bolt 5 is firmly tightened onto the adjusting threaded rod 1, its position corresponding to above the movable bolt 3 for easy operation. A hex wrench is used to tighten the locking bolts 2 at both ends. During the process, the movable bolt 3 limits the position of one locking bolt 2 to ensure installation accuracy. Simultaneously, the fixing bolt 5 assists in rotating the adjusting threaded rod 1, achieving quick and effortless adjustment. As the locking bolt 2 is gradually screwed in, the protrusion 6 at the end away from the adjusting thread rod 1 pushes the elastic seal 4 to gradually squeeze and deform, tightly filling the gap between the hydraulic hose and the transition joint. Finally, the tightening torque of the locking bolt 2 is precisely controlled by a torque wrench to ensure the sealing effect and connection strength, and to avoid seal failure or component damage due to improper torque, thereby completing a stable and reliable fast connection and transition of the hydraulic hose.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A quick-release compression fitting type adapter for hydraulic hoses, characterized in that, It includes an adjusting threaded rod (1), locking bolts (2) located at both ends of the adjusting threaded rod (1), a movable bolt (3) sleeved on the adjusting threaded rod (1) and located between the two locking bolts (2), and an elastic sealing element (4) located inside the locking bolts (2) for sealing.

2. The quick-release compression fitting for hydraulic hoses according to claim 1, characterized in that, The locking bolt (2) is a hexagonal structure with internal threads. Its internal threads are adapted to the adjusting thread rod (1). The elastic seal (4) is clamped by the locking bolts (2) at both ends to connect the hydraulic hoses at both ends.

3. A quick-release compression fitting adapter for hydraulic hoses according to claim 1, characterized in that, Above the movable bolt (3) is a fixing bolt (5) that is fixedly connected to the adjusting threaded rod (1); The movable bolt (3) is used to limit the position of the locking bolt (2) of one section, and the fixed bolt (5) assists in rotating the adjusting threaded rod (1).

4. A quick-release compression fitting type adapter for hydraulic hoses according to claim 1, characterized in that, The adjusting threaded rod (1) is sleeved outside the part of the elastic seal (4), and the locking bolt (2) has a protrusion (6) that blocks the elastic seal (4) on the end away from the adjusting threaded rod (1).

5. A quick-release compression fitting for hydraulic hoses according to claim 1, characterized in that, The elastic seal (4) is an annular structure adapted to the clamping space of the locking bolt (2), and is deformed by the compression of the locking bolts (2) at both ends to achieve sealing.

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