Liquid releasing device of rapid hydraulic oil cylinder

Abstract

The utility model discloses a liquid release device of a quick hydraulic oil cylinder, which relates to the technical field of hydraulic oil cylinders and is technically characterized by comprising a cylinder barrel, one end of the cylinder barrel is connected with a two-way pressure pump through a connecting cavity channel, and one side of the connecting cavity channel facing the cylinder barrel is provided with a conical flow guide groove; a plurality of electric telescopic pieces are evenly distributed in the flow guide groove in the annular circumferential direction, the movable ends of the electric telescopic pieces are connected with flow discharge blocks, and flow guide holes penetrating in the axial direction are formed in the middles of the flow discharge blocks. The liquid release rate can be increased, and the shrinkage speed of the hydraulic oil cylinder is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a liquid release device for a fast hydraulic cylinder. Background Technology

[0002] Hydraulic cylinders are crucial actuators in hydraulic systems, much like the "muscles" of industrial equipment. They convert hydraulic energy into mechanical energy, driving the equipment to complete linear reciprocating motion. In the field of construction machinery, excavators and cranes rely on them to perform heavy tasks such as digging and hoisting; in agricultural machinery, tractors and harvesters use their power for efficient operation; on industrial automated production lines, they precisely control the movements of mechanical components, ensuring smooth production processes.

[0003] The hydraulic cylinder filling connection device is a key component of the hydraulic system, responsible for efficiently and stably delivering hydraulic oil into the cylinder. It consists of pipes, connectors, valves, and other components that work closely together. The pipes serve as the delivery channels and must possess excellent sealing and pressure resistance to prevent hydraulic oil leakage and withstand high pressure. Connectors are used to link pipes and components, ensuring a secure and reliable connection and preventing loosening or detachment. Valves control the flow and direction of the hydraulic oil, achieving precise control through adjusting their opening.

[0004] A hydraulic cylinder with application number CN201920284033.1 has been found to have a slow filling speed in practical applications, making it impossible to achieve rapid cylinder extension. This drawback is evident in many situations where high response speed and action efficiency are required.

[0005] The fluid release speed of a hydraulic cylinder is one of the key factors determining the speed of its extension and retraction. When the hydraulic cylinder needs to retract, if there is blockage in the fluid release channel, the pipe diameter is too small, or the valve response is slow, the fluid cannot be discharged quickly enough, resulting in a sluggish retraction process of the piston rod. This slow retraction speed not only reduces equipment efficiency and extends production cycles, but may also adversely affect the accuracy and stability of the equipment due to the inability to respond to system control commands in a timely manner. It may even trigger a series of cascading failures, increasing equipment maintenance costs and downtime, and causing unnecessary losses to production. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a liquid release device for a fast hydraulic cylinder, improve the liquid release rate, and ensure the retraction speed of the hydraulic cylinder.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A liquid release device for a rapid hydraulic cylinder includes a cylinder barrel. One end of the cylinder barrel is connected to a bidirectional pressure pump via a connecting cavity. A conical guide groove is formed on the side of the connecting cavity facing the cylinder barrel. Multiple electrically operated telescopic components are evenly distributed circumferentially within the guide groove. The movable end of each electrically operated telescopic component is connected to a drain block. An axially penetrating guide hole is formed in the center of the drain block. When the electrically operated telescopic component is in a retracted state, the side wall of the drain block and the inner wall of the guide groove are tightly fitted to form a sealing structure. When liquid release is required, the electrically operated telescopic component drives the drain block to extend axially, forming an annular guide cavity between the drain block and the guide groove to achieve rapid pressure relief and improve the liquid release rate.

[0009] Preferably, an elastic sealing gasket is fixedly bonded to the inner wall of the guide channel, and the outer surface of the sealing gasket forms an interference fit with the side wall contact surface of the drain block to improve the sealing performance.

[0010] Preferably, the outer surface of the sealing gasket is covered with a wear-resistant coating to improve durability.

[0011] Preferably, the cylinder barrel has an annular reinforcing frame on the outer peripheral wall of the guide groove area to improve mechanical strength.

[0012] Preferably, the inner wall of the guide hole of the drain block is provided with a spiral guide pattern, and the spiral guide pattern is consistent with the liquid flow direction of the hydraulic cylinder to improve the guide capacity.

[0013] Preferably, the outer wall of the effluent block is a hollow conical structure that matches the guide groove, thereby improving adaptability and reducing weight.

[0014] Preferably, the electric telescopic component is an electric cylinder, and the fixing part of the electric cylinder is embedded in the guide groove, which is a reasonable design.

[0015] This utility model has the following beneficial effects:

[0016] Significantly effective rapid pressure relief: The fluid release device of this rapid hydraulic cylinder achieves rapid pressure relief through a unique design. Multiple electrically operated telescopic components are evenly distributed circumferentially within the guide channel, with their movable ends connected to a drain block. When the electrically operated telescopic components are in the retracted state, the sidewall of the drain block tightly fits against the inner wall of the guide channel, forming a sealed structure. When fluid release is required, the electrically operated telescopic components drive the drain block to extend axially, creating an annular flow-guiding cavity between the drain block and the guide channel. This design changes the traditional pressure relief method, enabling the formation of a large flow channel in a short time, allowing fluid to pass through quickly, thereby achieving rapid pressure relief. This effectively improves the working efficiency of the hydraulic cylinder and meets the needs of some working scenarios with high response speed requirements.

[0017] Excellent sealing performance: An elastic sealing gasket is fixedly bonded to the inner wall of the guide channel, and the outer surface of the gasket forms an interference fit with the side wall of the drain block. This design greatly enhances the sealing performance of the device. When the electric telescopic component retracts and the drain block and guide channel are tightly fitted, the sealing gasket effectively fills the tiny gaps between them, preventing liquid leakage. Simultaneously, the wear-resistant coating on the outer surface of the sealing gasket further improves its wear resistance and service life, reducing seal failure caused by wear and ensuring that the device maintains good sealing performance during long-term use, thus guaranteeing the stable operation of the hydraulic system.

[0018] High structural stability: The cylinder barrel has a ring-shaped reinforcing frame on its outer peripheral wall in the guide channel area. This ring-shaped reinforcing frame provides additional support and reinforcement to the guide channel area, capable of withstanding the high pressure and impact forces generated during hydraulic cylinder operation, effectively preventing deformation or damage to the cylinder barrel in the guide channel area. This structural design enhances the overall structural stability of the device, improves its reliability and safety, extends its service life, and reduces failures and maintenance costs caused by structural problems.

[0019] Smooth Liquid Flow: The inner wall of the guide hole of the drain block is equipped with a spiral guide pattern, and the direction of the spiral guide pattern is consistent with the direction of liquid flow in the hydraulic cylinder. When liquid passes through the guide hole, the spiral guide pattern can guide the liquid to flow in a specific direction, reducing resistance during liquid flow and making the liquid flow smoother. At the same time, the outer wall of the drain block is a hollow conical structure that matches the guide groove. This design helps the liquid flow transition between the guide groove and the drain block, avoiding turbulence or vortices during liquid flow, further improving the liquid flow efficiency and ensuring the normal operation of the hydraulic cylinder. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of the first embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of the second embodiment of the present invention.

[0023] In the diagram: 1. Cylinder; 2. Two-way pressure pump; 3. Guide channel; 401. Electric telescopic component; 402. Drain block; 403. Guide hole; 404. Sealing gasket; 5. Reinforcing frame. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] First embodiment

[0026] like Figure 1 As shown, a liquid release device for a rapid hydraulic cylinder includes a cylinder 1. One end of the cylinder 1 is connected to a bidirectional pressure pump 2 via a connecting cavity. A conical guide groove 3 is provided on the side of the connecting cavity facing the cylinder 1. Multiple electrically operated telescopic components 401 are evenly distributed along the circumferential direction inside the guide groove 3. The movable end of the electrically operated telescopic component 401 is connected to a drain block 402. An axially penetrating guide hole 403 is provided in the middle of the drain block 402. When the electrically operated telescopic component 401 is in the retracted state, the side wall of the drain block 402 is tightly fitted with the inner wall of the guide groove 3 to form a sealing structure. When liquid release is required, the electrically operated telescopic component 401 drives the drain block 402 to extend axially, so that an annular guide cavity is formed between the drain block 402 and the guide groove 3 to achieve rapid pressure relief.

[0027] like Figure 1As shown, when the device is not performing a liquid release operation, the electric telescopic component 401 (electric cylinder) is in a retracted state. At this time, the movable end of the electric cylinder drives the drain block 402 connected to it to move towards the electric cylinder, so that the side wall of the drain block 402 is tightly fitted with the inner wall of the guide groove 3. Since the inner wall of the guide groove 3 is fixedly bonded with an elastic sealing gasket 404, and the outer surface of the sealing gasket 404 forms an interference fit with the contact surface of the side wall of the drain block 402, this design can ensure that a reliable sealing structure is formed between the two. At the same time, one end of the cylinder 1 is connected to a bidirectional pressure pump 2 through a connecting cavity. When the hydraulic system is working normally, the bidirectional pressure pump 2 can deliver liquid into the cylinder 1. As the liquid is continuously injected, the pressure inside the cylinder 1 gradually increases, and the sealing structure effectively prevents the liquid from leaking from the guide groove 3, allowing the liquid to accumulate pressure inside the cylinder 1, preparing for the subsequent rapid pressure release operation. When liquid release is required, the electric cylinder starts to work, and its movable end drives the drain block 402 to extend axially. As the bleed block 402 moves, it gradually separates from the inner wall of the guide channel 3, forming an annular guide cavity. At this time, the high-pressure liquid in the cylinder 1, under the action of the pressure difference, rapidly flows from the cylinder 1 through the connecting channel into the guide channel 3, and then flows out through the annular guide cavity between the bleed block 402 and the guide channel 3. The bleed block 402 has an axially penetrating guide hole 403 in the middle. Although the guide hole 403 is not the main pressure relief channel during this rapid pressure relief stage, it can assist the liquid flow to a certain extent and further optimize the liquid flow path. The annular guide channel at the bottom of the guide channel 3 is connected to the connecting channel through a radial diversion hole. When the bleed block 402 extends, the annular guide channel can guide the liquid to diffuse evenly, allowing the liquid to be discharged from the device more smoothly, thereby achieving rapid pressure relief.

[0028] like Figure 1 As shown, an elastic sealing gasket 404 is fixedly bonded to the inner wall of the guide channel 3. The outer surface of the sealing gasket 404 forms an interference fit with the side wall of the drain block 402. The outer surface of the sealing gasket 404 is covered with a wear-resistant coating. The wear-resistant coating on the outer surface of the sealing gasket 404 can effectively reduce the friction and wear between the drain block 402 and the sealing gasket 404 during movement, extend the service life of the sealing gasket 404, and ensure the long-term stability of the sealing performance. At the same time, the fixing part of the electric cylinder is embedded in the guide channel 3. This installation method makes the electric cylinder and the guide channel 3 an integral unit, with a more compact structure and enhanced overall structural stability of the device. The annular reinforcing frame 5 set on the outer peripheral wall of the cylinder barrel 1 in the guide channel 3 area can withstand the high pressure and impact force generated when the hydraulic cylinder is working, preventing the cylinder barrel 1 from deforming or being damaged in the guide channel 3 area, further ensuring the reliability and safety of the device.

[0029] Second embodiment

[0030] like Figure 2 As shown, the cylinder 1 has an annular reinforcing frame 5 on its outer peripheral wall in the guide groove 3 area. This annular reinforcing frame 5 is primarily based on structural mechanics principles. During the operation of the hydraulic cylinder, the guide groove 3 area is subjected to high pressure from the internal fluid and various external stresses. The annular reinforcing frame 5, as a ring-shaped support structure, can disperse and withstand these pressures and stresses. By evenly distributing the concentrated force to various parts of the frame and then transferring it to other parts of the cylinder 1, it effectively enhances the strength and rigidity of the cylinder 1 in the guide groove 3 area, preventing deformation, cracking, or other damage to the cylinder 1 in this area. This ensures the stability and reliability of the overall hydraulic cylinder structure and guarantees normal operation of the device under high pressure.

[0031] like Figure 2 As shown, the inner wall of the guide hole 403 of the vent block 402 is provided with a spiral guide pattern, and the direction of the spiral guide pattern is consistent with the direction of fluid flow in the hydraulic cylinder. This spiral guide pattern on the inner wall of the guide hole 403 of the vent block 402, with the spiral direction consistent with the direction of fluid flow in the hydraulic cylinder, utilizes the guiding principle in fluid mechanics. When the fluid flows in the guide hole 403, the spiral guide pattern guides the fluid. During the flow, the fluid will form a certain rotational flow tendency along the trajectory of the spiral pattern. This rotational flow can reduce the frictional resistance between the fluid and the inner wall of the guide hole 403, making the fluid flow smoother. At the same time, the spiral guide pattern can also change the flow state of the fluid, reducing energy loss during the flow process, improving the flow efficiency of the fluid, helping to achieve rapid pressure relief, and ensuring that the hydraulic cylinder can release the fluid in a timely and effective manner.

[0032] like Figure 2 As shown, the outer wall of the vent block 402 is a hollow conical structure that matches the guide channel 3. This design, based on fluid dynamics and structural adaptation principles, ensures that the outer wall of the vent block 402 is hollow and conical, matching the guide channel 3 as it extends axially under the action of the electric telescopic component 401 during liquid release. The gap between the outer wall of the conical structure and the inner wall of the guide channel 3 gradually changes. From a tightly sealed state where the vent block 402 and the guide channel 3 are in close contact to the formation of an annular guide cavity, the conical structure allows for a smoother and more uniform change in gap. This smooth transition helps reduce turbulence and pressure fluctuations caused by abrupt changes in gap during liquid flow, allowing the liquid to flow out of the guide channel 3 more stably and smoothly. Simultaneously, the matching design between the conical structure and the guide channel 3 also improves the sealing performance between them. When the electric telescopic component 401 contracts, the outer wall of the conical structure fits better with the inner wall of the guide channel 3, forming a reliable sealing structure and preventing liquid leakage.

[0033] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A liquid release device for a quick hydraulic ram, comprising a cylinder barrel (1), characterized in that: One end of the cylinder (1) is connected to a bidirectional pressurizing pump (2) through a connecting cavity. A conical guide groove (3) is provided on the side of the connecting cavity facing the cylinder (1). Multiple electric telescopic components (401) are evenly distributed along the circumferential direction in the guide groove (3). The movable end of the electric telescopic component (401) is connected to a drain block (402). An axially penetrating guide hole (403) is provided in the middle of the drain block (402). When the electric telescopic component (401) is in a contracted state, the side wall of the drain block (402) is tightly fitted with the inner wall of the guide groove (3) to form a sealing structure. When liquid needs to be released, the electric telescopic component (401) drives the drain block (402) to extend axially, so that an annular guide cavity is formed between the drain block (402) and the guide groove (3) to achieve rapid pressure relief.

2. A hydraulic fluid release device for a hydraulic cylinder according to claim 1, wherein: The inner wall of the guide groove (3) is fixedly bonded with an elastic sealing gasket (404), and the outer surface of the sealing gasket (404) forms an interference fit with the side wall contact surface of the drain block (402).

3. A hydraulic fluid release device for a quick hydraulic ram as defined in claim 2, wherein: The outer surface of the sealing gasket (404) is covered with a wear-resistant coating.

4. A hydraulic fluid release device for a quick hydraulic ram as defined in claim 3, wherein: The cylinder (1) has an annular reinforcing frame (5) on the outer peripheral wall of the guide groove (3) area.

5. A hydraulic fluid release device for a quick hydraulic ram as defined in claim 4, wherein: The inner wall of the guide hole (403) of the drain block (402) is provided with a spiral guide pattern, and the spiral guide pattern is consistent with the liquid flow direction of the hydraulic cylinder.

6. A hydraulic fluid release device for a quick hydraulic ram as defined in claim 5, wherein: The outer wall of the bleed block (402) is a hollow conical structure that matches the guide groove (3).

7. The hydraulic fluid release device of claim 1, wherein: The electric telescopic component (401) is an electric cylinder, and the fixing part of the electric cylinder is embedded in the guide groove (3).

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