Pressurizing oil cylinder with pressure relief mechanism
By setting pressure relief components in the boosting cylinder, the instability problem caused by excessive cylinder pressure during the boosting process is solved, and the stable and safe operation of the cylinder is achieved.
Patent Information
- Application Number
- CN202422074720.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The booster cylinder cannot guarantee stability during the boosting process, especially when the internal pressure of the cylinder is too high, it is prone to failure.
The pressure relief assembly is set inside the booster cylinder, including a valve core and a pressure relief pipe, through the pressure relief assembly, automatically releases pressure when the pressure in the cylinder reaches a certain value to ensure operation stability.
The timely pressure relief of the booster cylinder at high pressure is achieved, ensuring the stability and safety of operation.
Smart Images
Figure CN223075867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of supercharging oil cylinders, and particularly relates to a supercharging oil cylinder with a pressure relief mechanism. Background Art
[0002] A supercharging oil cylinder is a key hydraulic controller. It is a mechanical device that increases the system pressure and capacity by increasing the compressed hydraulic fluid, and is usually applied to hydraulic systems that require an increase in working pressure and improvement in efficiency.
[0003] The supercharging oil cylinder combines the respective advantages of a cylinder and an oil cylinder. It mainly uses pure air pressure as power, and combines the proportional relationship of the cross-sectional areas of the large and small pistons in the supercharger to be able to increase the originally low air pressure by dozens of times, providing powerful power for the oil cylinder. It not only acts quickly but also is more stable than traditional pneumatic transmission.
[0004] In addition, this type of supercharging cylinder also has many advantages such as simple structure, convenient output adjustment, low energy consumption, no damage to the mold, and flexible installation. However, the supercharging oil cylinder cannot ensure the stability of supercharging during the supercharging process. If the internal pressure of the oil cylinder is too high, it will cause the oil cylinder to malfunction. Therefore, it is necessary to relieve the pressure of the supercharging oil cylinder in a timely manner to ensure the safety of its operation. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a supercharging oil cylinder with a pressure relief mechanism, which can relieve the pressure of the supercharging oil cylinder in a timely manner to ensure the stability of the operation of the supercharging oil cylinder.
[0006] To solve the above technical problems, the following technical solutions are adopted in the utility model.
[0007] The supercharging oil cylinder with a pressure relief mechanism includes a cylinder block. An oil inlet P port is provided at the top of the cylinder block, and an oil outlet A port and a pressure relief T port are respectively provided at the left and right ends of the cylinder block; a piston rod is slidably installed inside the cylinder block; a first oil chamber communicating with the oil inlet P port is formed between the inner side of the right end of the cylinder block and the right end of the piston rod, and a second oil chamber communicating with the oil outlet A port is formed between the left end of the cylinder block and the right end portion of the piston rod; a pressure relief pipe communicating with the pressure relief T port and the second oil chamber is provided inside the piston rod, and a pressure relief component for relieving pressure is slidably provided at the right end of the pressure relief pipe.
[0008] In the above supercharging oil cylinder with a pressure relief mechanism, the pressure relief component includes a valve core assembled and connected with the pressure relief pipe. A valve sleeve is slidably fitted on the outer side wall of the right end of the valve core; the valve core is composed of a conical portion and a cylindrical portion. A pressure relief chamber communicating with the pressure relief T port is opened at the center of the cylindrical portion of the valve core, and a notch communicating with the pressure relief chamber is also opened at the left end of the cylindrical portion of the valve core.
[0009] In the above-mentioned supercharging oil cylinder with a pressure relief mechanism, an elastic connecting member that drives the valve core to automatically rebound and reset after pressure relief is connected between the left end of the valve core and the pressure relief pipe.
[0010] In the above-mentioned supercharging oil cylinder with a pressure relief mechanism, a buffer cavity that plays a buffering role is formed between the middle of the cylinder block and the middle of the piston rod. A compression spring is installed in the buffer cavity. One end of the compression spring is connected to the cylinder block, and the other end of the compression spring is connected to the piston rod.
[0011] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0012] The present utility model provides a supercharging oil cylinder with a pressure relief mechanism. By arranging a pressure relief component inside the supercharging oil cylinder, it can relieve pressure in a timely manner when the pressure in the oil cylinder reaches a certain value, ensuring the stability and safety of the operation of the supercharging oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the specific structure of the present utility model;
[0014] Figure 2 is a schematic structural diagram of the specific structure of the pressure relief component of the present utility model.
[0015] Among them: 1. Cylinder block, 2. Piston rod, 3. First oil chamber, 4. Buffer cavity, 5. Second oil chamber, 6. Sealing cover, 7. Compression spring, 8. Pressure relief pipe, 9. Valve sleeve, 10. Valve core, 11. Elastic connecting member, 12. Pressure relief cavity, 13. Notch. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0017] The supercharging oil cylinder with a pressure relief mechanism, as Figures 1 to 2 shown, includes a cylinder block 1. An oil inlet P port is provided at the top of the cylinder block 1. An oil outlet A port and a pressure relief T port are respectively provided at the left and right ends of the cylinder block 1. A piston rod 2 is slidably installed inside the cylinder block 1. A first oil chamber 3 communicating with the oil inlet P port is formed between the inner side of the right end of the cylinder block 1 and the right end of the piston rod 2. A buffer cavity 4 that plays a buffering role is formed between the middle of the cylinder block 1 and the middle of the piston rod 1. A second oil chamber 5 communicating with the oil outlet A port is formed between the left end of the cylinder block 1 and the right end of the piston rod 2.
[0018] A compression spring 7 is installed in the buffer cavity 4. One end of the compression spring 7 is connected to the cylinder block 1, and the other end of the compression spring 7 is connected to the piston rod 2.
[0019] A pressure relief pipe 8 communicating with the pressure relief T port and the second oil chamber 5 is provided inside the piston rod 2. A pressure relief component for relieving pressure is slidably provided at the right end of the pressure relief pipe 8.
[0020] The pressure relief component includes a valve core 10 assembled and connected to a pressure relief pipe 8. A valve sleeve 9 is slidably fitted on the outer side wall of the right end of the valve core 10. The valve core 10 is composed of a conical part and a cylindrical part. A pressure relief cavity 12 communicating with the pressure relief T-port is formed in the center of the cylindrical part of the valve core 10, and a notch 13 communicating with the pressure relief cavity 12 is also formed at the left end of the cylindrical part of the valve core 10.
[0021] When the cylindrical part of the valve core 10 is completely sleeved in the valve sleeve 9, the conical part of the valve core 10 is hermetically fitted with the valve sleeve 9. However, when the valve core 10 is pushed to the left by an external thrust, the cylindrical part of the valve core 10 moves to the left, so that the notch 13 on the cylindrical part communicates with the pressure relief pipe 8 and forms a pressure relief channel together with the pressure relief cavity 12 to relieve pressure from the pressure relief T-port.
[0022] An elastic connecting piece 11 is connected between the left end of the valve core 10 and the pressure relief pipe 8, which can drive the valve core to automatically rebound and reset after pressure relief.
[0023] During use, oil is fed into the first oil chamber 3 from the oil inlet P-port. At this time, the piston rod 2 will move to the left under the push of the oil and compress the compression spring 7. The left end of the piston rod 2 will push the oil in the second oil chamber 5 to be discharged from the oil outlet A-port. At this time, a pressurized area difference will be generated between the first oil chamber 3 and the second oil chamber 5, so as to achieve the purpose of pressure increase.
[0024] When the pressure increase reaches a certain level, stop feeding oil. Push the valve core 10 inward from the pressure relief T-port with the help of an auxiliary device such as a push rod to move the whole valve core to the left, ensuring that the notch 13 is exposed and communicates with the pressure relief pipe 8, so that the pressure relief pipe 8 and the pressure relief cavity 12 form a pressure relief channel communicating with the pressure relief T-port to complete pressure relief, and automatically reset under the action of the elastic connecting piece.
[0025] The utility model provides a pressure increasing oil cylinder with a pressure relief mechanism. By arranging a pressure relief component inside the pressure increasing oil cylinder, it can relieve pressure in time when the pressure in the oil cylinder reaches a certain value, ensuring the stability and safety of the operation of the pressure increasing oil cylinder.
Claims
1. The supercharging oil cylinder with a pressure relief mechanism is characterized in that: It includes a cylinder block (1). An oil inlet P port is provided at the top end of the cylinder block (1). An oil outlet A port and a pressure relief T port are respectively provided at the left and right ends of the cylinder block (1). A piston rod (2) is slidably installed inside the cylinder block (1). A first oil chamber (3) communicating with the oil inlet P port is formed between the inner side of the right end of the cylinder block (1) and the right end of the piston rod (2). A second oil chamber (5) communicating with the oil outlet A port is formed between the left end of the cylinder block (1) and the right end portion of the piston rod (2). A pressure relief pipe (8) communicating with the pressure relief T port and the second oil chamber (5) is provided inside the piston rod (2). A pressure relief assembly for performing pressure relief is slidably provided at the right end of the pressure relief pipe (8).
2. The pressurizing oil cylinder with a pressure relief mechanism according to claim 1, wherein: The pressure relief assembly includes a valve core (10) assembled and connected to the pressure relief pipe (8). A valve sleeve (9) is slidably fitted on the outer side wall of the right end of the valve core (10). The valve core (10) is composed of a conical portion and a cylindrical portion. A pressure relief cavity (12) communicating with the pressure relief T port is opened at the center of the cylindrical portion of the valve core (10), and a notch (13) communicating with the pressure relief cavity (12) is also opened at the left end of the cylindrical portion of the valve core (10).
3. The supercharging oil cylinder with a pressure relief mechanism according to claim 2, characterized in that: An elastic connecting member (11) that drives the valve core to automatically rebound and reset after pressure relief is connected between the left end of the valve core (10) and the pressure relief pipe (8).
4. The supercharging oil cylinder with a pressure relief mechanism according to claim 1, wherein: A buffer cavity (4) for buffering is formed between the middle of the cylinder block (1) and the middle of the piston rod (2). A compression spring (7) is installed in the buffer cavity (4). One end of the compression spring (7) is connected to the cylinder block (1), and the other end of the compression spring (7) is connected to the piston rod (2).