Self-detection hydraulic oil cylinder in hydraulic system power station
By designing a self-detecting hydraulic cylinder within the power station of the hydraulic system and using a detection mechanism to monitor the bending of the piston rod, the problem of complex structure and inability to provide timely feedback in existing technologies is solved, enabling real-time monitoring and safety alerts for the piston rod.
Patent Information
- Application Number
- CN202520851910.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Existing hydraulic cylinder testing and detection devices have complex structures and cannot provide timely feedback on changes during use, especially in cases of piston rod bending or breakage.
A self-detecting hydraulic cylinder is designed in the power station of the hydraulic system, including a detection mechanism comprising a fixed base, a movable block, a detection component, and a controller. The detection component monitors the bending of the piston rod and generates signals through fixed and moving contacts to transmit to the controller, prompting for replacement or suspension of operation.
It enables real-time monitoring of the hydraulic cylinder piston rod, providing timely reminders for replacement or work stoppage, thus improving safety and detection accuracy while reducing the complexity of the device.
Smart Images

Figure CN223923464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a self-detecting hydraulic cylinder in the power station of a hydraulic system. Background Technology
[0002] A hydraulic power station (also known as a hydraulic pump station) is an integrated device that converts mechanical energy into hydraulic energy. It transmits power through hydraulic oil to drive external equipment (such as cylinders and motors) to perform directional, pressure, and flow control operations. A hydraulic cylinder mainly consists of a cylinder barrel and cylinder head, piston and piston rod, sealing devices, buffer devices, and venting devices. The cylinder barrel and cylinder head form the main structure, while the piston and piston rod jointly undertake the energy conversion task. The quality and performance of the hydraulic cylinder's piston rod are crucial to safety. If the piston rod bends, it will affect its use; even if undetected, the piston rod may break, causing a safety accident. Existing cylinder testing and inspection devices are complex in structure and cannot provide timely feedback on changes in the hydraulic cylinder during use. Utility Model Content
[0003] The technical problem to be solved by this utility model is: in order to overcome the problem that the existing hydraulic cylinder testing and detection device has a complex structure and cannot provide timely feedback on changes in the hydraulic cylinder during use, a self-detecting hydraulic cylinder in the power station of a hydraulic system is provided.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a self-detecting hydraulic cylinder in a hydraulic system power station, including a detection mechanism arranged on the cylinder body of the hydraulic cylinder. The detection mechanism is located outside the cylinder body of the hydraulic cylinder. The detection mechanism includes a fixed seat, a movable block, and several detection components. The fixed seat has a through hole in the center for the piston rod of the hydraulic cylinder to pass through. The detection components are connected to the fixed seat and are located in the through hole of the fixed seat. The detection components include a moving contact, a fixed contact, a controller, and an elastic element. The fixed contact is fixedly connected to the fixed seat, the moving contact is fixedly connected to the movable block, one end of the elastic element is fixedly connected to the fixed seat, and the other end is fixedly connected to the movable block. The controller is fixedly connected to the fixed seat, and the moving contact and the fixed contact are electrically connected to the controller. Through the design of the detection mechanism, the condition of the piston rod can be monitored. When the piston rod bends, the piston rod will cause the movable block to move, thereby causing the fixed contact and the moving contact to contact and generate a signal, which is transmitted to the controller to remind the user to replace or pause the operation of the hydraulic cylinder.
[0005] To address the issue of unstable connection between the fixed seat and the movable block, a detection mechanism is further included, comprising a telescopic stabilizer. The telescopic stabilizer includes a sleeve and a movable rod. The sleeve is connected to the fixed seat, one end of the movable rod is slidably arranged inside the sleeve, and the other end is fixedly connected to the movable block.
[0006] To address the inconvenience of adjusting detection accuracy, a threaded connection between the sleeve and the fixed seat is further included.
[0007] Furthermore, the active blocks are arranged in a ring-shaped structure.
[0008] Furthermore, the active block has an arc-shaped structure, and there is a one-to-one correspondence between the active block and the detection component. The active block and its corresponding detection component are connected.
[0009] To address the issue of low detection accuracy near the cylinder body, the detection mechanism further includes a connector. One end of the connector is fixedly connected to the top of the piston rod of the hydraulic cylinder, and the other end is fixedly connected to a fixed seat. The connector allows the detection mechanism to move along with the top of the piston rod of the hydraulic cylinder.
[0010] To address the issue of low stability of the fixed components, the detection mechanism further includes a telescopic adjustment component. One end of the telescopic adjustment component is fixedly connected to the cylinder body of the hydraulic cylinder, and the other end is fixedly connected to the fixed seat. The telescopic adjustment component ensures stable movement of the detection mechanism.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a self-detecting hydraulic cylinder in the power station of a hydraulic system. Through the design of the detection mechanism, it is possible to monitor the condition of the piston rod. When the piston rod bends, the piston rod will cause the moving block to move, thereby causing the fixed contact and the moving contact to contact and generate a signal, which is transmitted to the controller to remind the user to replace or pause the operation of the hydraulic cylinder. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A;
[0015] Figure 3 This is a top view of the structure of the testing mechanism of this utility model;
[0016] Figure 4 This is a top view of another embodiment of the testing mechanism of this utility model.
[0017] In the diagram: 1. Hydraulic cylinder; 11. Cylinder body; 12. Piston rod; 2. Detection mechanism; 21. Fixed base; 211. Through hole; 22. Movable block; 23. Detection component; 231. Moving contact; 232. Fixed contact; 233. Controller; 24. Elastic element; 25. Telescopic stabilizer; 251. Sleeve; 252. Movable rod; 26. Connector; 27. Telescopic adjustment component. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0019] like Figure 1 This is a schematic diagram of the structure of this utility model. A self-detecting hydraulic cylinder in a hydraulic system power station includes a detection mechanism 2 arranged on the cylinder body 11 of the hydraulic cylinder 1. The detection mechanism 2 is located outside the cylinder body 11 of the hydraulic cylinder 1. The detection mechanism 2 includes a fixed base 21, a movable block 22, and several detection components 23. The fixed base 21 has a through hole 211 at its center for the piston rod 12 of the hydraulic cylinder 1 to pass through. The detection components 23 are connected to the fixed base 21 and are located within the through hole 211 of the fixed base 21. The detection components 23 include a moving contact 231, a fixed contact 232, a controller 233, and an elastic element 24. The fixed contact 232 and the fixed block 232... The base 21 is fixedly connected, the moving contact 231 and the movable block 22 are fixedly connected, one end of the elastic element 24 is fixedly connected to the fixed base 21, and the other end is fixedly connected to the movable block 22. The controller 233 is fixedly connected to the fixed base 21, and the moving contact 231 and the fixed contact 232 are electrically connected to the controller 233. Through the design of the detection mechanism 2, the condition of the piston rod 12 can be monitored. After the piston rod 12 bends, the piston rod 12 will cause the movable block to move, thereby causing the fixed contact 232 and the moving contact 231 to contact and generate a signal, which is transmitted to the controller to remind the user to replace or pause the operation of the hydraulic cylinder. The elastic element 24 can be a coil spring or a rubber spring, etc.
[0020] like Figure 2 As shown, the detection mechanism 2 includes a telescopic stabilizer 25, which includes a sleeve 251 and a movable rod 252. The sleeve 251 is connected to the fixed seat 21. One end of the movable rod 252 is slidably arranged inside the sleeve 251, and the other end is fixedly connected to the movable block 22, thereby increasing the stability of the connection between the movable block 22 and the fixed seat 21 and ensuring the axial position of the movable block 22 relative to the fixed seat 21.
[0021] The sleeve 251 and the fixed seat 21 are threaded together. The sleeve 251 has an external thread, and the fixed seat 21 has an internal thread hole that matches the external thread on the sleeve 251. This allows the distance between the movable block 22 and the fixed seat 21 to be adjusted, thereby controlling the detection accuracy.
[0022] like Figure 3 As shown, the active block 22 has a ring-shaped structure. The active block 22 is an integrated structure, which makes it more stable for integrated testing.
[0023] In another embodiment, such as Figure 4As shown, the movable block 22 has an arc-shaped structure. The movable block 22 and the detection component 23 correspond one-to-one. The movable block 22 and its corresponding detection component 23 are connected. The movable block 22 adopts a split structure, which makes the detection sensitivity higher.
[0024] The detection mechanism 2 includes a connector 26. One end of the connector 26 is fixedly connected to the top of the piston rod 12 of the hydraulic cylinder 1, and the other end is fixedly connected to the fixed seat 21. The connector 26 enables the detection mechanism 2 to move with the top of the piston rod 12 of the hydraulic cylinder 1. The connector 26 can be a rope or a rod or other component. The connector 26 is used to drive the detection mechanism 2 to move with the piston rod 12. The part of the piston rod 12 that is further away from the cylinder body 11 is more likely to be bent and damaged.
[0025] The detection mechanism 2 includes a telescopic adjustment component 27. One end of the telescopic adjustment component 27 is fixedly connected to the cylinder body 11 of the hydraulic cylinder 1, and the other end is fixedly connected to the fixed seat 21. The telescopic adjustment component 27 makes the detection mechanism 2 move stably. The telescopic adjustment component 27 is a multi-stage telescopic rod. The telescopic adjustment component 27 can stabilize the fixed seat 21 and prevent it from shaking randomly.
[0026] During use, if the piston rod bends, the position of the movable block 22 will shift, causing the fixed contact 232 and the moving contact 231 to come into contact and generate a signal, which is transmitted to the controller 233. The controller 233 reminds the user to replace or pause the operation of the hydraulic cylinder. The elastic element 24 reduces the accidental contact caused by vibration.
[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A self-detecting hydraulic cylinder in a power station of a hydraulic system, characterized in that, The system includes a detection mechanism (2) arranged on the cylinder body (11) of the hydraulic cylinder (1). The detection mechanism (2) is located outside the cylinder body (11) of the hydraulic cylinder (1). The detection mechanism (2) includes a fixed base (21), a movable block (22), and several detection components (23). The fixed base (21) has a through hole (211) at its center for the piston rod (12) of the hydraulic cylinder (1) to pass through. The detection components (23) are connected to the fixed base (21), and the detection components (23) are located inside the through hole (211) of the fixed base (21). The detection component (23) includes a moving contact (231), a fixed contact (232), a controller (233), and an elastic element (24). The fixed contact (232) is fixedly connected to the fixed base (21), the moving contact (231) is fixedly connected to the movable block (22), one end of the elastic element (24) is fixedly connected to the fixed base (21), and the other end is fixedly connected to the movable block (22). The controller (233) is fixedly connected to the fixed base (21), and the moving contact (231) and the fixed contact (232) are electrically connected to the controller (233).
2. The self-detecting hydraulic cylinder in the power station of a hydraulic system as described in claim 1, characterized in that: The detection mechanism (2) includes a telescopic stabilizer (25), which includes a sleeve (251) and a movable rod (252). The sleeve (251) is connected to a fixed seat (21). One end of the movable rod (252) is slidably arranged inside the sleeve (251), and the other end is fixedly connected to the movable block (22).
3. The self-detecting hydraulic cylinder in the power station of a hydraulic system as described in claim 2, characterized in that: The sleeve (251) and the fixed seat (21) are threaded together.
4. The self-detecting hydraulic cylinder in the power station of a hydraulic system as described in claim 1, characterized in that: The active block (22) has a ring-shaped structure.
5. A self-detecting hydraulic cylinder in a hydraulic system power station as described in claim 1, characterized in that: The movable block (22) has an arc-shaped structure. The movable block (22) and the detection component (23) correspond one-to-one. The movable block (22) and its corresponding detection component (23) are connected.
6. A self-detecting hydraulic cylinder in a power station of a hydraulic system as described in claim 1, characterized in that: The detection mechanism (2) includes a connector (26), one end of which is fixedly connected to the top end of the piston rod (12) of the hydraulic cylinder (1), and the other end is fixedly connected to the fixed seat (21). The connector (26) enables the detection mechanism (2) to move along with the top end of the piston rod (12) of the hydraulic cylinder (1).
7. A self-detecting hydraulic cylinder in a power station of a hydraulic system as described in claim 1, characterized in that: The detection mechanism (2) includes a telescopic adjustment component (27), one end of which is fixedly connected to the cylinder body (11) of the hydraulic cylinder (1), and the other end is fixedly connected to the fixed seat (21). The telescopic adjustment component (27) makes the detection mechanism (2) move stably.