Hydraulic quick connector structure

Abstract

The utility model discloses a hydraulic quick connector structure which comprises a main body, a reset spring installed on the main body, a ball installed in a lock head, a first rear through opening installed on the right side of a first threaded connector, a first supporting spring installed on the first rear through opening, and a first front through opening installed on the first supporting spring. A first top is installed on the first front through opening, a second top is installed on the right side of the first top, a shell is installed on the second top, a fixing groove is formed in the shell, a second front through opening is formed in the second top, and a second supporting spring is installed on the second front through opening. According to the hydraulic quick connector structure, threaded connection is adopted, a pipeline and a connector are stably connected through threaded tight meshing, convenient and quick connection is achieved in the mode that a ball is clamped into a fixing groove, a pressed channel is exposed through contact and extrusion of an ejector head, and hydraulic fluid can pass through the pressed channel, and gaps of a rear through opening and a front through opening reduce flowing hindrance of the hydraulic fluid; the shape of the top channel increases the hydraulic pressure to stabilize the subsequent pipeline pressure.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic coupling technology, specifically a hydraulic quick coupling structure. Background Technology

[0002] Hydraulic couplings primarily function to effectively connect two hydraulic hoses within a hydraulic pipeline. Hydraulic quick couplings are a special type of hydraulic coupling, their most prominent feature being their ability to achieve rapid connection. These quick couplings consist of corresponding female and male connectors; in the industry, the female connector is also called a female-female connector, and the male connector a male-female connector. This is a remarkably convenient coupling, requiring no tools to easily and quickly assemble and disassemble pipelines. This characteristic makes it widely used in many hydraulic system-related operations.

[0003] However, existing hydraulic quick couplings have several problems. Firstly, installation is inconvenient. Due to their structural design and connection methods, operators often need to spend considerable time and effort to ensure correct installation. Secondly, existing hydraulic quick couplings are prone to leakage when the hydraulic system is operating at high pressure. Hydraulic oil leakage not only wastes hydraulic oil but also severely impacts the operation of the entire hydraulic system. Thirdly, there are overpressure areas within the hydraulic quick coupling. Due to the inherent characteristics of the coupling, these areas are prone to pressure drops. This pressure drop leads to insufficient pressure in subsequent parts of the hydraulic system, which is highly detrimental to its normal operation. It may cause hydraulically driven equipment to malfunction, affecting production efficiency or causing equipment failure. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic quick coupling structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic quick connector structure, comprising a main body, a return spring mounted on the main body, a lock head mounted on the return spring, a ball bearing mounted inside the lock head, a first threaded interface mounted inside the main body, a first rear port mounted on the right side of the first threaded interface, a first support spring mounted on the first rear port, a first front port mounted on the first support spring, a first top head mounted on the first front port, a second top head mounted on the right side of the first top head, a housing mounted on the second top head, a fixing groove mounted on the housing, a second front port mounted on the second top head, a second support spring mounted on the second front port, a second rear port mounted on the second support spring, and a second threaded interface mounted on the right side of the second rear port.

[0006] Preferably, the main body can be connected to a pipe via a threaded interface at the tail.

[0007] Preferably, when the first and second mandrels come into contact, they retract along the support spring due to pressure, thereby opening the locked channel and allowing the hydraulic fluid to pass through smoothly.

[0008] Preferably, the rear port and the front port are designed with multiple openings to ensure the support force while allowing the hydraulic fluid to pass through smoothly.

[0009] Preferably, the lock head can be pulled down so that the notch faces the ball, allowing the fixing groove to enter smoothly, and after the connection is completed, it will return to its original position under the action of the return spring.

[0010] Preferably, the loop-shaped channel formed by the mandrel when it starts working will physically pressurize the hydraulic fluid to ensure that the pressure behind it is maintained at a certain level.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This hydraulic quick-connect coupling features a threaded connection, a design that enhances the stability of the connection between the pipe and the coupling. In practical applications, the tight engagement of the threads securely fixes the pipe to the coupling, effectively preventing loosening due to external forces during use, thus ensuring the sealing and normal operation of the hydraulic system. Simultaneously, this hydraulic quick-connect coupling utilizes a ball-loaded locking mechanism in the fixing groove, greatly improving the convenience and speed of connection. When connection is required, simply align the ball-loaded component with the fixing groove; the ball will quickly engage under appropriate pressure, completing the connection without complex procedures or additional tools, significantly saving connection time. Inside the hydraulic quick-connect coupling, when the top contacts and is compressed, the previously blocked channel is exposed, ensuring smooth flow of hydraulic fluid. Furthermore, the notches on the rear and front ports also facilitate the smooth flow of hydraulic fluid. These notches reduce obstruction during hydraulic fluid flow, allowing for a more fluid flow within the coupling. At the same time, the special shape of the channel at the top end amplifies the pressure of the hydraulic fluid flow, ensuring stable pressure in the subsequent pipelines. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0015] In the diagram: 1. Main body; 2. Return spring; 3. Lock head; 4. Ball bearing; 5. No. 1 top head; 6. No. 1 front opening; 7. No. 1 support spring; 8. No. 1 rear opening; 9. No. 1 threaded interface; 10. No. 2 top head; 11. No. 2 front opening; 12. No. 2 support spring; 13. No. 2 rear opening; 14. No. 2 threaded interface; 15. Fixing groove; 16. Outer shell. Detailed Implementation

[0016] 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.

[0017] Example: Please refer to Figure 1 This utility model provides a technical solution: a hydraulic quick connector structure, including a main body 1, a return spring 2 installed on the main body 1, a locking head 3 installed on the return spring 2, a ball bearing 4 installed inside the locking head 3, a first threaded interface 9 installed inside the main body 1, a first rear port 8 installed on the right side of the first threaded interface 9, a first support spring 7 installed on the first rear port 8, a first front port 6 installed on the first support spring 7, a first top head 5 installed on the first front port 6, a second top head 10 installed on the right side of the first top head 5, a housing 16 installed on the second top head 10, a fixing groove 15 installed on the housing 16, a second front port 11 installed on the second top head 10, a second support spring 12 installed on the second front port 11, a second rear port 13 installed on the second support spring 12, and a second threaded interface 14 installed on the right side of the second rear port 13.

[0018] The main body 1 can be connected to the pipe via the threaded interface at the tail.

[0019] In this embodiment, the connection between the pipe and the joint is made more stable, and the pipe is firmly fixed to the joint, which effectively prevents loosening due to various external forces during use, thereby ensuring the sealing and normal operation of the hydraulic system.

[0020] When the first mandrel 5 and the second mandrel 10 come into contact, they will retract along the support spring due to pressure, which will open the locked channel and allow the hydraulic fluid to pass through smoothly.

[0021] In this embodiment, the channel can be opened smoothly during operation, and can be locked when separated to prevent hydraulic fluid from flowing out.

[0022] The rear and front ports are designed with multiple openings to ensure support while allowing hydraulic fluid to pass through smoothly.

[0023] In this embodiment, the hydraulic fluid is ensured to pass through smoothly during circulation.

[0024] Among them, the lock head 3 can be pulled down so that the notch is aligned with the ball 4, allowing the fixing groove to enter smoothly. After the connection is completed, it will return to its original position under the action of the return spring 2.

[0025] In this embodiment, the lock head can better integrate the devices together during operation, while preventing the lock head from falling off due to external forces during operation.

[0026] The loop-shaped channel formed by the mandrel when it starts working will physically pressurize the hydraulic fluid, ensuring that the pressure behind it remains at a certain level.

[0027] In this embodiment, the pressure of the hydraulic fluid is increased to ensure stable pressure at the subsequent pipeline.

[0028] Working Principle: First, connect the pipe to the connector via the threaded interface at the tail of the connector. Tightening the thread ensures a tight and secure connection between the pipe and the connector, preventing loosening or disconnection during subsequent hydraulic system operation. Next, accurately align the female connector with the male connector to ensure proper mating and lay the foundation for subsequent connection operations. Then, pull the locking head on the female connector, allowing sufficient movement for the ball bearings. Next, insert the male connector into the female connector. During insertion, the insertion pressure of the male connector causes the mandrel inside the female connector to retract, exposing the previously obstructed passage behind the mandrel. Release the locking head; under the action of the return spring, the locking head will return to its original position. During this process, the return spring performs an automatic reset function, allowing the locking head to quickly and accurately return to its initial state, ensuring a more secure and reliable connection between the female and male connectors. Finally, after the connector connection is complete, hydraulic fluid can flow smoothly through the connector via the rear and front ports, thus realizing the normal transmission function of hydraulic fluid in the hydraulic system.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A hydraulic quick-connect coupling structure, comprising a main body (1), characterized in that: A return spring (2) is installed on the main body (1), a lock head (3) is installed on the return spring (2), a ball bearing (4) is installed inside the lock head (3), a first threaded interface (9) is installed inside the main body (1), a first rear opening (8) is installed on the right side of the first threaded interface (9), a first support spring (7) is installed on the first rear opening (8), a first front opening (6) is installed on the first support spring (7), and a first top head (5) is installed on the first front opening (6). A second top head (10) is installed on the right side of the first top head (5). A housing (16) is installed on the second top head (10). A fixing groove (15) is installed on the housing (16). A second front opening (11) is installed on the second top head (10). A second support spring (12) is installed on the second front opening (11). A second rear opening (13) is installed on the second support spring (12). A second threaded interface (14) is installed on the right side of the second rear opening (13).

2. The hydraulic quick coupling structure according to claim 1, characterized in that: The main body (1) can be connected to a pipe via a threaded interface at the tail.

3. The hydraulic quick coupling structure according to claim 1, characterized in that: When the first mandrel (5) and the second mandrel (10) come into contact, they will retract along the support spring due to pressure, thereby opening the locked channel and allowing the hydraulic fluid to pass through smoothly.

4. The hydraulic quick coupling structure according to claim 1, characterized in that: The rear and front ports are designed with multiple openings to ensure support while allowing hydraulic fluid to pass through smoothly.

5. The hydraulic quick coupling structure according to claim 1, characterized in that: The lock head (3) can be pulled down so that the notch faces the ball (4) so ​​that the fixing groove can be smoothly entered. After the connection is completed, it will return to its original position under the action of the return spring (2).

6. The hydraulic quick coupling structure according to claim 1, characterized in that: The loop-shaped channel formed by the mandrel when it starts working will physically pressurize the hydraulic fluid.

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