一种液压油缸的控制阀
By introducing a limit ring, limit plate, and slide groove structure into the hydraulic cylinder control valve, combined with a compression spring and a pull rod, the problems of unstable clamping of the pressure rod and limited pressing range are solved, achieving stable limiting and flexible pressing of the pressure rod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XUANHENG MINING ELECTROMECHANICAL EQUIP MFG & REPAIRING CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing hydraulic cylinder control valves, the locking stability of the pressure rod is poor, and the pressing range is limited, which affects the performance.
A hydraulic cylinder control valve was designed. Through the combination of structures such as a limit ring, a limit plate, an L-shaped plate, and a slide groove, the movement of the limit seat is achieved by using a compression spring and a pull rod to ensure that the pressure rod is stably limited. The cooperation of the positioning column and the positioning groove prevents the limit ring and the limit plate from rotating, thereby enhancing the locking stability.
It achieves a stable limit on the pressure bar, preventing downward movement, and expands the pressing range when needed, improving the stability and flexibility of the locking mechanism.
Smart Images
Figure CN224515518U_ABST
Abstract
Claims
1. A control valve of a hydraulic cylinder, comprising a control valve body (1) provided with a plurality of pressure rods (2), characterized in that: Each of the multiple pressure rods (2) is detachably connected to a fixing ring (3). A limit ring (4) is provided on the outside of the pressure rod (2) for rotational sliding. A limit plate (5) is fixedly connected to the side end of the limit ring (4). An L-shaped plate (6) is fixedly connected to the control valve body (1) at the position corresponding to the multiple pressure rods (2). Each of the multiple L-shaped plates (6) is provided with a limit groove (7) that cooperates with the limit plate (5). When the top end of the limit ring (4) contacts the bottom end of the fixing ring (3), the limit plate (5) is inserted into the limit groove. Inside (7), a sliding groove (8) is provided on the L-shaped plate (6) below the limiting groove (7). A limiting seat (9) is slidably provided inside the sliding groove (8). A pull rod (10) is fixedly connected to the side end of the limiting seat (9). A first compression spring (11) is sleeved on the outside of the pull rod (10). The first compression spring (11) is located inside the sliding groove (8). A square plate (12) is fixedly connected to one end of the pull rod (10) extending to the outside of the L-shaped plate (6). A pull handle (13) is fixedly connected to the side end of the square plate (12).
2. The control valve for a hydraulic cylinder according to claim 1, characterized in that: The top of the pressure rod (2) is connected to a pressing plate (15) by a first screw (14), and a sleeve (16) is fixedly connected to the pressing plate (15). The bottom end of the sleeve (16) is fixedly connected to the top end of the fixing ring (3).
3. A control valve for a hydraulic ram as claimed in claim 2, wherein: The top of the pressure rod (2) is fixedly connected to a square column (17), and the bottom of the pressing plate (15) is provided with a square groove (18). The square column (17) is inserted into the inside of the square groove (18), and the first screw (14) is threadedly connected to the square column (17).
4. The control valve for a hydraulic cylinder according to claim 1, characterized in that: The bottom end of the fixed ring (3) is symmetrically fixedly connected with two positioning posts (19), and the limiting ring (4) is symmetrically provided with two positioning grooves (20).
5. The control valve for a hydraulic cylinder according to claim 1, wherein: The pressure rod (2) is fixedly connected to a ring (21), and a second compression spring (22) is sleeved on the outside of the pressure rod (2). The second compression spring (22) is located between the ring (21) and the limiting ring (4).
6. The control valve for a hydraulic cylinder according to claim 2, characterized in that: A pressing handle (23) is fixedly connected to the side end of the pressing plate (15).
7. The control valve for a hydraulic cylinder according to claim 1, characterized in that: The square plate (12) is fixedly connected to the pull rod (10) by the second screw (24).
8. The control valve for a hydraulic cylinder according to claim 1, characterized in that: Two mounting plates (25) are fixedly connected to the control valve body (1), and two mounting holes (26) are provided on each of the two mounting plates (25).