Separable high-pressure hydraulic hose connectors and hose lines

Abstract

This invention relates to the field of hydraulic hose connection technology, particularly to a split-type high-pressure hydraulic hose connector and hose pipeline. The split-type high-pressure hydraulic hose connector includes: a male connector, a female connector, and a mating connection assembly. The mating connection assembly connects flow channel one and flow channel two when one end of the female connector is inserted into the sealing cavity; a quick-connect assembly, including an insertion limiting mechanism and a state switching mechanism; a sealing assembly for sealing the connection position of the male and female connectors; and a dynamic adjustment assembly, including a pressure opening mechanism and a reinforcement mechanism. Under normal pressure, this invention relies on the sealing assembly to provide a basic seal. When the system pressure rises to a dangerous or leak-prone threshold, the pressure opening mechanism is automatically triggered, and the reinforcement mechanism provides additional clamping force to the sealing assembly, dynamically adjusting the sealing performance, greatly improving the sealing reliability and safety under high pressure and pressure fluctuation conditions.

Description

Technical Field

[0001] This invention relates to the field of hydraulic hose connection technology, specifically to a split high-pressure hydraulic hose connector and hose pipeline. Background Technology

[0002] The split-type high-pressure hydraulic hose connector is a device used in hydraulic systems to enable quick connection and disconnection of hoses, widely used in engineering machinery, aerospace, automotive, and other fields. The primary design goal of this connector is to improve work efficiency and safety, making hose replacement and maintenance convenient in high-pressure environments. Existing technologies typically employ locking mechanisms and sealing designs to prevent leakage under high pressure. Common connection methods include threaded connections and snap-fit ​​connections, ensuring a robust and reliable connection. Furthermore, with advancements in materials science, the connector's pressure resistance and corrosion resistance have also been significantly improved.

[0003] While existing hydraulic hose connectors offer some quick-connect functionality, they often exhibit the following shortcomings when facing demanding conditions such as high pressure (e.g., above 30MPa), pressure shocks, and frequent disassembly and assembly: Firstly, insufficient sealing reliability: traditional sealing rings are prone to minor deformation or gaps under high pressure or pressure fluctuations, leading to leakage; and secondly, a lack of pressure adaptability: the sealing state is mostly statically preset, unable to dynamically adjust the clamping force of the sealing pair according to real-time changes in the internal fluid pressure of the system. When the pressure increases, the seal may be insufficient, and when the pressure decreases, over-tightening may accelerate wear. Summary of the Invention

[0004] The purpose of this invention is to provide a detachable high-pressure hydraulic hose connector and hose pipeline to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On the one hand, a detachable high-pressure hydraulic hose connector is provided, comprising:

[0007] A male connector, one end of which is provided with a mating thread section for connecting a hose, and the interior of the male connector is provided with a flow channel, and a sealing cavity is provided on the side of the flow channel away from the mating thread section;

[0008] A female connector, one end of which is provided with a threaded section for connecting a hose, and the interior of the female connector is provided with a flow channel.

[0009] A docking and connecting component is disposed at the docking point of flow channel one and flow channel two, and the docking and connecting component is used to connect flow channel one and flow channel two when one end of the female connector is inserted into the sealing cavity;

[0010] The quick-connect assembly includes an insertion limiting mechanism and a state switching mechanism. When one end of the female connector is inserted into the sealing cavity, the insertion limiting mechanism is used to restrict the position of the female connector, and the state switching mechanism is used to close or open the insertion limiting mechanism.

[0011] A sealing assembly is disposed in the sealing cavity and is used to seal the connection position of the male connector and the female connector;

[0012] A dynamic adjustment component includes a pressure opening mechanism and a reinforcement mechanism. The pressure opening mechanism is disposed in the sealing cavity and is used to sense the fluid pressure in the sealing cavity and trigger the opening of the reinforcement mechanism when the fluid pressure exceeds a set value. The reinforcement mechanism is used to adjust the position of the sealing component.

[0013] Preferably, the docking and connecting assembly includes a male valve core, a female valve core, a movable seat, a fixed seat, and an adjusting spring. Fixed seats are provided in both the first and second flow channels. The fixed seats are connected to the movable seats via the adjusting springs. The movable seat in the first flow channel is connected to the male valve core, and the female connector is connected to one side of the second flow channel. When one end of the female connector is inserted into the sealing cavity, the male and female valve cores push against each other. At this time, the adjusting springs in both the first and second flow channels are compressed, causing the first and second flow channels to connect.

[0014] Preferably, the female connector is provided with a limiting groove, and a plurality of radial holes are provided around the male connector. The insertion limiting mechanism includes a steel ball, which is disposed in the radial holes. When the female connector is inserted into the male connector until the limiting groove and the steel ball are aligned, the steel ball is embedded in the limiting groove to achieve limiting.

[0015] Preferably, the state switching mechanism includes a locking spring and a locking sleeve. The two ends of the locking spring are respectively connected to the male connector and the locking sleeve. The locking sleeve is rotatably fitted onto the outer end of the male connector. The inner wall of the locking sleeve is provided with a locking trapezoidal groove. When the locking sleeve is moved so that the locking trapezoidal groove presses against the steel ball, the steel ball will be embedded in the limiting groove. The female connector is provided with a trapezoidal part. When the female connector is inserted into the male connector until the limiting groove and the steel ball are aligned, the trapezoidal part of the female connector presses against the steel ball, and the steel ball will be embedded in the locking trapezoidal groove.

[0016] Preferably, the sealing assembly includes a sealing ring disposed in the sealing cavity.

[0017] Preferably, the pressure opening mechanism includes a mounting ring, a trigger rod, a movable rod, and a support ring. The mounting ring is disposed in the sealing cavity, and the interior of the mounting ring is a hollow cavity containing hydraulic oil. The trigger rod is movably connected to the hollow cavity. The movable rod is connected to the hollow cavity of the mounting ring and is movably connected to one side of the mounting ring. The movable rod is connected to the support ring. When the movable rod drives the support ring to move, it will compress the sealing ring.

[0018] Preferably, the reinforcement mechanism includes a rubber compensation ring. When the movable rod drives the support ring to move, the support ring presses against the rubber compensation ring, causing it to expand radially.

[0019] On the other hand, a hose conduit is provided, including the aforementioned split high-pressure hydraulic hose connector.

[0020] Compared with the prior art, the beneficial effects of this invention are as follows: This application achieves rapid locking and unlocking of the connection through the cooperation of the steel ball and the limiting groove, combined with the sliding or rotating operation of the locking sleeve, greatly improving the efficiency of pipeline assembly and maintenance; the docking and connecting component adopts a double valve core design, which automatically opens when connecting and automatically closes under the action of the spring when disconnecting, effectively avoiding oil leakage during the connection and disconnection process; the dynamic adjustment component can sense the system working pressure in real time. Under normal pressure, the sealing component provides basic sealing; when the system pressure rises to a dangerous or easily leaking threshold, the pressure opening mechanism is automatically triggered, and the sealing component is provided with additional clamping force through the reinforcement mechanism, dynamically adjusting the sealing performance, greatly improving the sealing reliability and safety under high pressure and pressure fluctuation conditions; this application integrates quick connection, sealing, pressure self-adaptation and other functional modules, with a reasonable structural design, high component strength, suitable for high pressure and frequent operation environments, and long service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection structure of the male and female connectors of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram showing the connection state of the male and female connectors of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the male and female connectors of the present invention in their separated state;

[0024] Figure 4 This is a schematic diagram of the exploded structure of the male connector and locking sleeve of the present invention;

[0025] Figure 5 This is a schematic cross-sectional view of the female connector of the present invention;

[0026] Figure 6This is a schematic cross-sectional view of the male connector of the present invention;

[0027] Figure 7 This is a schematic cross-sectional view of the locking sleeve structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the connection structure of each component of the docking and connecting assembly of the present invention;

[0029] Figure 9 This is a schematic diagram showing the positions and structures of the sealing ring, mounting ring, and trigger rod of the present invention;

[0030] Figure 10 This is an exploded structural diagram of the sealing ring, mounting ring, trigger rod, movable rod, support ring, and rubber compensation ring of the present invention.

[0031] Figure 11 This is an exploded structural diagram of the mounting ring, trigger rod, movable rod, and support ring of the present invention.

[0032] Figure 12 This is a schematic diagram of the installation ring cross-sectional structure of the present invention;

[0033] Figure 13 This is a schematic diagram of the connection structure between the cavity and the trigger rod in this invention;

[0034] Figure 14 This is a schematic diagram of the trigger rod's axial structure according to the present invention.

[0035] In the diagram: 1 Male connector, 2 Female connector, 3 Fixed seat, 4 Adjusting spring, 5 Moving seat, 6 Male valve core, 7 Female valve core, 8 Steel ball, 9 Locking spring, 10 Locking sleeve, 11 Sealing ring, 12 Mounting ring, 13 Trigger rod, 14 Moving rod, 15 Support ring, 16 Rubber compensation ring, 101 Butt thread section one, 102 Flow channel one, 103 Sealing cavity, 104 Radial hole, 201 Butt thread section two, 202 Flow channel two, 203 Limiting groove, 204 Trapezoidal part, 1001 Locking trapezoidal groove, 1201 Hollow cavity. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-14 The present invention provides a technical solution:

[0038] A detachable high-pressure hydraulic hose connector, as per the instruction manual. Figure 1 As shown, it includes:

[0039] Male connector 1, one end of which is provided with a mating thread section 101 for connecting a hose. The mating thread section 101 is used to connect with the high-pressure hydraulic hose, ensuring a firm connection and easy disassembly and assembly. The interior of the male connector 1 is provided with a flow channel 102 for conveying hydraulic fluid. A sealing cavity 103 is provided on the side of the flow channel 102 away from the mating thread section. The sealing cavity 103 is used to accommodate the insertion end of the female connector 2 and to provide installation space for the sealing assembly and the dynamic adjustment assembly.

[0040] The female connector 2 has a threaded section 201 for connecting a hose at one end. The female connector 2 has a flow channel 202 inside, which is used to form a continuous flow path after connecting with the flow channel 102.

[0041] The docking and connecting component is located at the docking point of flow channel 102 and flow channel 202. The docking and connecting component is used to connect flow channel 102 and flow channel 202 when one end of the female connector 2 is inserted into the sealing cavity 103.

[0042] The quick-connect assembly includes an insertion limiting mechanism and a state switching mechanism. When one end of the female connector 2 is inserted into the sealing cavity 103, the insertion limiting mechanism is used to limit the position of the female connector 2, and the state switching mechanism is used to close or open the insertion limiting mechanism.

[0043] A sealing assembly is disposed in the sealing cavity 103 and is used to seal the connection position of the male connector 1 and the female connector 2.

[0044] The dynamic adjustment component includes a pressure opening mechanism and a reinforcement mechanism. The pressure opening mechanism is located in the sealing cavity 103. The pressure opening mechanism is used to sense the fluid pressure in the sealing cavity 103 and trigger the opening of the reinforcement mechanism when the fluid pressure exceeds a set value. The reinforcement mechanism is used to adjust the position of the sealing component.

[0045] The docking and connecting assembly includes fixed seats 3 respectively fixed within flow channel one 102 and flow channel two 202. Each fixed seat 3 is connected to a movable seat 5 via an adjusting spring 4. A male valve core 6 is installed on the movable seat 5 in flow channel one 102, and a female valve core 7 is installed on the movable seat 5 in flow channel two 202. Under normal conditions, the adjusting spring 4 causes the male valve core 6 and female valve core 7 to block their respective flow channels. When the female connector 2 is inserted into the male connector 1, the male valve core 6 and female valve core 7 push against each other, forcing the two movable seats 5 to move towards each other and compress the adjusting spring 4 connected to them, thereby opening the flow channels and achieving fluid communication. When the connectors are separated, the adjusting spring 4 resets, causing the valve cores to close and preventing fluid leakage.

[0046] The female connector 2 is provided with a limiting groove 203, and a number of radial holes 104 are provided around the male connector 1. The insertion limiting mechanism includes a steel ball 8, which is disposed in the radial holes 104. When the female connector 2 is inserted into the male connector 1 until the limiting groove 203 and the steel ball 8 are aligned, the steel ball 8 is embedded in the limiting groove 203 to achieve limiting.

[0047] The state switching mechanism includes a locking spring 9 and a locking sleeve 10. The two ends of the locking spring 9 are connected to the male connector 1 and the locking sleeve 10, respectively. The locking sleeve 10 is rotatably fitted onto the outer end of the male connector 1. The inner wall of the locking sleeve 10 is provided with a locking trapezoidal groove 1001. When the locking sleeve 10 is moved so that the locking trapezoidal groove 1001 presses against the steel ball 8, the steel ball 8 will be embedded in the limiting groove 203. The female connector 2 is provided with a trapezoidal part 204. When the female connector 2 is inserted into the male connector 1 until the limiting groove 203 and the steel ball 8 are aligned, the trapezoidal part 204 of the female connector 2 presses against the steel ball 8, and the steel ball 8 will be embedded in the locking trapezoidal groove 1001.

[0048] The sealing assembly includes a sealing ring 11, which is disposed in the sealing cavity 103. The material of the sealing ring 11 can be an elastic material such as rubber or polyurethane. The sealing ring 11 is sleeved between the outer periphery of the insertion part of the female connector 2 and the inner wall of the sealing cavity 103 of the male connector 1. After the connector is locked, it is deformed under pressure to fill the mating gap and prevent high-pressure fluid leakage.

[0049] The pressure-opening mechanism includes a mounting ring 12, a trigger rod 13, a movable rod 14, and a support ring 15. The mounting ring 12 is disposed in the sealing cavity 103, and the interior of the mounting ring 12 is a hollow cavity 1201 filled with hydraulic oil. Several trigger rods 13 are arranged in a circumferential array inside the hollow cavity 1201 and are movably connected to the interior of the mounting ring 12. The hollow cavity of the mounting ring 12 is connected to the movable rod 14, which is movably connected to the support ring 15. On one side of the mounting ring 12, the movable rod 14 is connected to the support ring 15. When the trigger rod 13 is squeezed by the fluid, it will move towards the movable rod 14, thereby driving the movable rod 14 to move. When the movable rod 14 drives the support ring 15 to move, it will squeeze the sealing ring 11. When the pressure in the flow channel decreases, the elastic force of the rubber compensation ring 16 and the sealing ring 11 will drive the movable rod 14 to reset. When the movable rod 14 resets, it will drive the trigger rod 13 to reset through the transmission of hydraulic oil.

[0050] The reinforcement mechanism includes a rubber compensation ring 16. When the movable rod 14 drives the support ring 15 to move, the support ring 15 presses against the rubber compensation ring 16 to make it expand radially. At this time, the rubber compensation ring 16 and the sealing ring 11 work together to seal the connection between the male connector 1 and the female connector 2.

[0051] Working Principle: Female connector 2 and male connector 1 are connected to different hoses via threaded sections. During connection, female connector 2 is inserted into the sealing cavity 103 of male connector 1 until the limiting groove 203 aligns with the steel ball 8. Rotating the locking sleeve 10 causes the steel ball 8 to engage with the limiting groove 203, completing the mechanical locking. At this time, the male valve core 6 and female valve core 7 push against each other, connecting flow channel one 102 and flow channel two 202. Under normal pressure, the sealing ring 11 provides a basic seal. When the system pressure rises above the set value, the pressure drives the trigger rod 13 to move along the hollow cavity of the mounting ring 12, which in turn drives the movable rod 14. The movable rod 14 pushes the support ring 15 to compress the sealing ring 11 and the rubber compensation ring 16, achieving dynamic pressure adaptive sealing enhancement. When separation is required, rotating the locking sleeve 10 in the opposite direction releases the steel ball 8, allowing female connector 2 to be pulled out of male connector 1, and the flow channels automatically close.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable high-pressure hydraulic hose connector, characterized in that, include: A male connector, one end of which is provided with a mating thread section for connecting a hose, and the interior of the male connector is provided with a flow channel, and a sealing cavity is provided on the side of the flow channel away from the mating thread section; A female connector, one end of which is provided with a threaded section for connecting a hose, and the interior of the female connector is provided with a flow channel. A docking and connecting component is disposed at the docking point of flow channel one and flow channel two, and the docking and connecting component is used to connect flow channel one and flow channel two when one end of the female connector is inserted into the sealing cavity; The quick-connect assembly includes an insertion limiting mechanism and a state switching mechanism. When one end of the female connector is inserted into the sealing cavity, the insertion limiting mechanism is used to restrict the position of the female connector, and the state switching mechanism is used to close or open the insertion limiting mechanism. A sealing assembly is disposed in the sealing cavity and is used to seal the connection position of the male connector and the female connector; A dynamic adjustment component includes a pressure opening mechanism and a reinforcement mechanism. The pressure opening mechanism is disposed in the sealing cavity and is used to sense the fluid pressure in the sealing cavity and trigger the opening of the reinforcement mechanism when the fluid pressure exceeds a set value. The reinforcement mechanism is used to adjust the position of the sealing component. The sealing assembly includes a sealing ring disposed in the sealing cavity; The pressure-opening mechanism includes a mounting ring, a trigger rod, a movable rod, and a support ring. The mounting ring is disposed in the sealing cavity, and the interior of the mounting ring is a hollow cavity containing hydraulic oil. The trigger rod is movably connected to the hollow cavity. The movable rod is connected to the hollow cavity of the mounting ring and is movably connected to one side of the mounting ring. The movable rod is connected to the support ring. When the movable rod drives the support ring to move, it will compress the sealing ring. The reinforcement mechanism includes a rubber compensation ring. When the movable rod drives the support ring to move, the support ring presses against the rubber compensation ring, causing it to expand radially.

2. The detachable high-pressure hydraulic hose connector according to claim 1, characterized in that: The docking and connecting assembly includes a male valve core, a female valve core, a movable seat, a fixed seat, and an adjusting spring. Fixed seats are provided in both the first and second flow channels. The fixed seats are connected to the movable seats via the adjusting springs. The movable seat in the first flow channel is connected to the male valve core, and the female connector is connected to one side of the second flow channel. When one end of the female connector is inserted into the sealing cavity, the male and female valve cores push against each other. At this time, the adjusting springs in both the first and second flow channels are compressed, making the first and second flow channels interconnected.

3. A detachable high-pressure hydraulic hose connector according to claim 1, characterized in that: The female connector is provided with a limiting groove, and a plurality of radial holes are provided around the male connector. The insertion limiting mechanism includes a steel ball, which is disposed in the radial holes. When the female connector is inserted into the male connector until the limiting groove and the steel ball are aligned, the steel ball is embedded in the limiting groove to achieve limiting.

4. A detachable high-pressure hydraulic hose connector according to claim 3, characterized in that: The state switching mechanism includes a locking spring and a locking sleeve. The two ends of the locking spring are respectively connected to the male connector and the locking sleeve. The locking sleeve is rotatably fitted onto the outer end of the male connector. The inner wall of the locking sleeve is provided with a locking trapezoidal groove. When the locking sleeve is moved so that the locking trapezoidal groove presses against the steel ball, the steel ball will be embedded in the limiting groove. The female connector is provided with a trapezoidal part. When the female connector is inserted into the male connector until the limiting groove and the steel ball are aligned, the trapezoidal part of the female connector presses against the steel ball, and the steel ball will be embedded in the locking trapezoidal groove.

5. A flexible conduit system, characterized in that: Includes the detachable high-pressure hydraulic hose connector as described in any one of claims 1-4.

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