Dual lock fluid connector

Abstract

The utility model discloses a kind of double locking fluid connectors, it is related to fluid connector technical field, including valve seat body, the right end of valve seat body is slidably connected with shell body, the inside of shell body is provided with the valve body of valve seat sealing ring screw connection, the inside connection of valve body is cavity body, cavity body is slidably connected with valve rod, the right end of valve rod is provided with valve core, the outside of valve rod is sleeved with valve bush, and the outside of valve bush is designed with cut, shell spring is arranged between shell body and valve seat body, shell body and valve body are opposite, valve seat sealing ring is arranged between the left end of valve body and valve seat body, a plurality of steel balls are provided on valve body along its circumference, to form through flow passage with cavity body, valve rod and valve core, as the carrier of fluid directional transmission;While through valve bush cutting edge, optimized valve core / flow channel form, guide fluid to flow smoothly, substantially reduce fluid resistance and pressure loss.

Description

Technical Field

[0001] This utility model relates to the field of fluid connector technology, specifically a double-locking fluid connector. Background Technology

[0002] Fluid connectors are core components for directional fluid transmission in industrial equipment, electronic cooling systems, and hydraulic transmission circuits. Their connection reliability, ease of operation, and transmission efficiency directly affect the operational stability and maintenance costs of the equipment. However, existing fluid connectors still have several shortcomings in practical applications: Insufficient locking reliability: Most existing connectors use a single locking structure (such as relying solely on ball bearings), resulting in low locking redundancy. Under complex conditions such as vibration and impact, the locking components are prone to loosening or even disengagement, leading to connection failure and making them unsuitable for equipment scenarios requiring high stability. Laborious mating operation: During mating, pressure easily accumulates in the internal flow channels of the connector, and the lack of a pressure relief structure significantly increases the mating force, increasing not only the operational intensity but also the risk of component damage during assembly. Low fluid transmission efficiency: The flow channel, valve core, and valve stem structures of existing products lack optimization, easily causing turbulence within the flow channels, resulting in high resistance and pressure loss. This reduces fluid transmission efficiency and also affects the heat dissipation effect in electronic equipment and other scenarios. Utility Model Content

[0003] To address the above problems, this utility model provides a double-locking fluid connector, thus solving the aforementioned issues.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-locking fluid connector, comprising a valve seat body, a housing body slidably connected to the right end of the valve seat body, a valve body body threadedly connected to the valve seat sealing ring on the inner side of the housing body, a cavity body connected inside the valve body body, a valve stem slidably connected inside the cavity body body, a valve core provided at the right end of the valve stem, a valve sleeve sleeved on the outer side of the valve stem, and a chamfered edge designed on the outer side of the valve sleeve.

[0005] Preferably, a housing spring is provided between the housing body and the valve seat body, the housing body abuts against the valve body body, and a valve seat sealing ring is provided between the left end of the valve body body and the valve seat body.

[0006] Preferably, a plurality of steel balls are arranged along the circumference of the valve body, and a pin threaded to the valve body is arranged between each pair of steel balls.

[0007] Preferably, a valve body spring is provided on the outer side of the valve sleeve, with the left end of the valve body spring abutting against the left end of the valve stem and the right end of the valve body spring abutting against the valve body.

[0008] Preferably, a stem core sealing ring is fitted onto the outer side of the opposite ends of the valve stem and the valve core, and multiple valve body sealing rings are provided between the cavity body and the valve body body.

[0009] Preferably, a spring washer is provided on the inner side of the right end of the cavity body, and a retaining ring is provided on the right side of the spring washer. The retaining ring is engaged with the cavity body. A cavity spring is provided inside the cavity body. The left end of the cavity spring abuts against the valve core, and the right end of the cavity spring abuts against the spring washer.

[0010] Preferably, a valve seat color ring is sleeved on the outer side of the valve seat body, a cavity color ring is sleeved on the outer side of the cavity body, and a step is provided on the cavity body with a cavity sealing ring sleeved at the step.

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

[0012] 1. The cavity body, valve stem, and valve core form a through-flow channel, serving as a carrier for directional fluid transmission. Simultaneously, the valve sleeve's slit and optimized valve core / flow channel shape guide smooth fluid flow, significantly reducing fluid resistance and pressure loss. During insertion, the steel ball and pin, in conjunction with the sliding action of the outer shell, complete the "unlock-lock-self-lock" linkage. During insertion, the male end pushes the valve core and valve stem to move, compressing the spring to open the flow channel. During disconnection, the valve body spring and cavity spring drive the valve stem and valve core back to their original positions, automatically sealing the flow channel and achieving automatic control of "insertion opens, disconnection closes".

[0013] 2. Multiple sealing barriers are constructed by sealing the gap between the valve seat body and the valve body body with the valve seat sealing ring, sealing the gap between the valve body and the cavity with the valve body sealing ring, sealing the gap between the valve stem and the valve core with the stem sealing ring, and sealing the gap between the cavity and external equipment with the cavity sealing ring. At the same time, the cavity sealing ring is positioned by a step to avoid displacement failure. The outer shell slides and the spring automatically resets, simplifying the insertion / disassembly steps. The valve sleeve is chamfered to reduce insertion resistance. The color rings on the valve seat / cavity enable quick differentiation between male and female ends to avoid incorrect insertion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the male and female ends of this utility model;

[0016] Figure 3 This is a schematic diagram of the main body of the present invention with the outer shell removed;

[0017] Figure 4 This is a schematic diagram of the interior of the valve body of this utility model;

[0018] Figure 5 This is a schematic diagram of the interior of the cavity body of this utility model;

[0019] Figure 6 This is a cross-sectional view of the present invention.

[0020] The diagram shows the following components: 1. Valve seat body; 2. Valve seat sealing ring; 3. Valve stem; 4. Valve body spring; 5. Valve seat color ring; 6. Valve sleeve; 7. Outer shell body; 8. Outer shell spring; 9. Valve body sealing ring; 10. Valve body body; 11. Stem core sealing ring; 12. Valve core; 13. Pin; 14. Cavity spring; 15. Steel ball; 16. Cavity color ring; 17. Cavity sealing ring; 18. Spring washer; 19. Snap ring; 20. Cavity body. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] Please see Figure 1 , Figure 2 and Figure 6 A double-locking fluid connector includes a valve seat body 1, with a housing body 7 slidably connected to the right end of the valve seat body 1. This sliding connection design ensures that the housing body 7 can smoothly retract during insertion, providing a stable stroke basis for unlocking the subsequent locking structure. A valve body body 10, threadedly connected to the valve seat body 1, is provided on the inner side of the housing body 7. The threaded connection makes the assembly of the valve body body 10 and the valve seat body 1 more secure and facilitates later maintenance and disassembly. A cavity body 20 is internally connected to the valve body body 10. The cavity body 20 is the core channel carrier for fluid transmission, and its structure is adapted to the smooth flow of fluid. For smooth flow, a valve stem 3 is slidably connected inside the cavity body 20. The sliding connection characteristic allows the valve stem 3 to move flexibly with the insertion action or fluid pressure, ensuring timely opening and closing of the flow channel. A valve core 12 is provided at the right end of the valve stem 3. The valve core 12 is a key actuator for controlling the opening and closing of the flow channel. The linkage between the valve core 12 and the valve stem 3 can accurately respond to the connection status. A valve sleeve 6 is sleeved on the outside of the valve stem 3. The valve sleeve 6 has a chamfered edge on its outside. The chamfered edge structure of the valve sleeve 6 can release pressure externally when the connector is connected, solving the problem of excessive insertion force caused by internal pressure accumulation during the insertion of traditional fluid connectors, making operation more labor-saving and convenient.

[0023] Please see Figure 3 , Figure 4 and Figure 5A housing spring 8 is provided between the housing body 7 and the valve seat body 1. The housing spring 8 can provide a reset force after the insertion is in place, pushing the housing body 7 to move forward automatically. The housing body 7 abuts against the valve body body 10. This abutting design limits the backward movement limit of the housing body 7, ensuring the stability of the component movement during the insertion process. A valve seat sealing ring 2 is provided between the left end of the valve body body 10 and the valve seat body 1. The valve seat sealing ring 2 can effectively seal the connection gap between the two, solving the problem of fluid leakage from the connection between the valve seat body 1 and the valve body body 10, and improving the sealing reliability of the connector.

[0024] Please see Figure 3 , Figure 4 and Figure 5 The valve body 10 has multiple steel balls 15 arranged along its circumference. Each pair of steel balls 15 is connected to a pin 13 threaded to the valve body 10. The double locking structure of steel balls 15 and pins 13 solves the problem of loosening of traditional single locking parts under vibration and impact conditions, greatly enhances the locking reliability of the connector, and ensures a stable connection. A valve body spring 4 is arranged on the outside of the valve sleeve 6. The left end of the valve body spring 4 abuts against the left end of the valve stem 3, and the right end of the valve body spring 4 abuts against the valve body 10. The valve body spring 4 can assist the valve stem 3 and the valve sleeve 6 in completing the reset action, avoiding the problem of flow channel failure due to component jamming, and ensuring the accuracy and timeliness of the valve core 12's on / off action.

[0025] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6The valve stem 3 and valve core 12 are respectively fitted with stem core sealing rings 11 on the outer sides of their opposite ends. The stem core sealing rings 11 can seal the connection between the valve stem 3 and the valve core 12, further filling the sealing gap in the flow channel and reducing the risk of fluid leakage. Multiple valve body sealing rings 9 are provided between the cavity body 20 and the valve body 10. Compared with the traditional single-ring sealing, the multi-ring sealing design improves the sealing redundancy, solves the problem of sealing failure under high pressure fluid transmission conditions, and enhances the sealing performance. A spring pad 18 is provided on the inner side of the right end of the cavity body 20. A retaining ring 19 is provided on the right side of the spring pad 18. The retaining ring 19 is engaged with the cavity body 20. The retaining ring 19 can stably limit the spring pad 18, preventing it from shifting under the force of the cavity spring 14, and ensuring the working stability of the spring component. The cavity body 20 is provided with a cavity. The cavity spring 14 has its left end abutting against the valve core 12 and its right end abutting against the spring washer 18. The cavity spring 14 provides a reset support force for the valve core 12, allowing the valve core 12 to quickly return to its original position and block the flow channel when the connector is disconnected, thus solving the problem of fluid residue leakage after disconnection. A valve seat color ring 5 is sleeved on the outer side of the valve seat body 1, and a cavity color ring 16 is sleeved on the outer side of the cavity body 20. The color rings of the valve seat 5 and the cavity color ring 16 can achieve quick visual differentiation between the male and female ends, solving the problem of mixed insertion of connectors of different specifications and effectively improving the efficiency of assembly and maintenance. The cavity body 20 is provided with a step, and a cavity sealing ring 17 is sleeved on the step. The step structure provides precise installation positioning for the cavity sealing ring 17, avoiding displacement and failure of the sealing ring, and further ensuring the sealing performance when the cavity body 20 is connected to external equipment.

[0026] Furthermore, these structures work together to achieve multiple core effects: Firstly, the optimized structure of the valve sleeve 6 (cut edge), valve core 12, and valve stem 3 reduces fluid resistance within the flow channel, minimizing pressure loss and improving fluid transmission efficiency and heat dissipation. Secondly, the dual locking structure of steel ball 15 and pin 13 enhances connection reliability under complex operating conditions. Thirdly, the synergy of multiple sealing rings and spring components ensures high sealing performance and precise component movement. Fourthly, the color ring design simplifies the operation process, achieving the overall fluid connection goal of "low resistance, high reliability, excellent sealing, and easy operation."

[0027] When using this utility model:

[0028] First, distinguish between the male and female ends: The color ring 5 on the outside of the valve seat body 1 and the color ring 16 on the outside of the cavity body 20 can quickly identify the cavity body 20 side and the valve seat body 1 side. Insert the male cavity body 20 into the female valve seat body 1 interface: Initially, the male cavity body 20 will touch the steel ball 15 and pin 13 on the female valve body 10. Under the thrust, the steel ball 15 and pin 13 will push the outer shell body 7 to slide backward along the valve seat body 1. As the male end continues to advance, the cavity body 20 drives the valve sleeve 6 to retreat synchronously. Simultaneously, the valve stem 3 begins to move under the linkage of the valve core 12, compressing the valve body spring 4, and the flow channel gradually becomes open. The optimized fitting shape of the valve stem 3 and valve core 12 reduces fluid turbulence interference. When the male end is inserted to its limit position: the groove of the cavity body 20 and... The positions of steel ball 15 and pin 13 are precisely aligned. Steel ball 15 and pin 13 are engaged in the groove to complete the initial locking. At the same time, the outer shell spring 8 releases its elastic force, pushing the outer shell body 7 forward along the valve body body 10 until the outer shell body 7 abuts against the limiting structure of the valve body body 10. At this time, the outer shell body 7 just blocks the exit path of steel ball 15 and pin 13, forming a double self-locking. The fluid enters the flow channel through the cavity body 20 and is transmitted to the target equipment through the channels of valve stem 3 and valve core 12. The valve seat sealing ring 2 blocks the gap between the valve seat and the valve body, the valve body sealing ring 9 blocks the gap between the valve body and the cavity, the stem core sealing ring 11 blocks the gap between the valve stem 3 and the valve core 12, and the cavity sealing ring 17 blocks the gap between the cavity and the external equipment, constructing a full gap sealing barrier. At the same time, the stepped positioning design of the cavity sealing ring 17 avoids the sealing ring from shifting and failing.

[0029] When disconnection is required: manually pull the outer shell body 7 backward. The outer shell body 7 compresses the outer shell spring 8 and retracts, releasing the obstruction of the steel ball 15 and the pin 13. Then pull out the male end cavity body 20. The steel ball 15 and the pin 13 disengage from the cavity groove to complete the unlocking. At the same time, the valve body spring 4 and the cavity spring 14 drive the valve stem 3 and the valve core 12 to return to their original positions, automatically sealing the flow channel.

[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 double-locking fluid connector, characterized in that: The valve body includes a valve seat body (1), a housing body (7) is slidably connected to the right end of the valve seat body (1), a valve body body (10) is provided on the inner side of the housing body body (7) and threadedly connected to the valve seat sealing ring (2), a cavity body (20) is connected inside the valve body body (10), a valve stem (3) is slidably connected inside the cavity body body (20), a valve core (12) is provided on the right end of the valve stem (3), a valve sleeve (6) is sleeved on the outer side of the valve stem (3), and a chamfer is designed on the outer side of the valve sleeve (6).

2. The fluid connector with double locking according to claim 1, characterized in that: A housing spring (8) is provided between the housing body (7) and the valve seat body (1). The housing body (7) abuts against the valve body body (10). A valve seat sealing ring (2) is provided between the left end of the valve body body (10) and the valve seat body (1).

3. The fluid connector with double locking according to claim 1, characterized in that: The valve body (10) has a plurality of steel balls (15) arranged along its circumference, and each pair of steel balls (15) is provided with a pin (13) that is threadedly connected to the valve body (10).

4. A double-locking fluid connector according to claim 1, characterized in that: A valve body spring (4) is provided on the outside of the valve sleeve (6). The left end of the valve body spring (4) abuts against the left end of the valve stem (3), and the right end of the valve body spring (4) abuts against the valve body body (10).

5. A double-locking fluid connector according to claim 1, characterized in that: The valve stem (3) and valve core (12) are respectively fitted with stem core sealing rings (11) on the outer side of their opposite ends, and multiple valve body sealing rings (9) are provided between the cavity body (20) and the valve body body (10).

6. A double-locking fluid connector according to claim 1, characterized in that: A spring pad (18) is provided on the inner side of the right end of the cavity body (20), and a retaining ring (19) is provided on the right side of the spring pad (18). The retaining ring (19) is engaged with the cavity body (20). A cavity spring (14) is provided inside the cavity body (20). The left end of the cavity spring (14) abuts against the valve core (12), and the right end of the cavity spring (14) abuts against the spring pad (18).

7. A double-locking fluid connector according to claim 1, characterized in that: A valve seat color ring (5) is sleeved on the outside of the valve seat body (1), and a cavity color ring (16) is sleeved on the outside of the cavity body (20). A step is provided on the cavity body (20), and a cavity sealing ring (17) is sleeved on the step.

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