一种带指示器快换功能的本安限位开关
By incorporating support blocks and adjustable mounting brackets into the intrinsically safe limit switch, the problem of poor shaft stability is solved, achieving rigid support and precise docking of the shaft, thereby improving equipment safety and installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI ST HANS PNEUMATIC VALVE ACTUATORS MAKER CO LD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
The existing intrinsically safe limit switch has an unreasonable connection structure between the shaft and the housing and mounting plate, resulting in poor shaft stability. It is prone to loosening due to vibration and impact, which affects the safety and accuracy of the equipment.
By setting support blocks between the mounting plate and the fixing plate, a rigid support is formed, and the stability between the components is ensured by screw connection. At the same time, adjustable mounting brackets and adjustment plates are used to achieve precise docking, disperse the radial force of the rotating shaft and reduce wear.
It improves the stability and service life of the shaft, avoids accidental triggering or trigger failure, enhances the safety and installation efficiency of equipment operation, and strengthens the stability and versatility of the equipment.
Smart Images
Figure CN224519730U_ABST
Abstract
Claims
1. An intrinsically safe limit switch with an indicator quick change function, characterized by, The device includes a rotating shaft (1) connected to the actuator shaft head, a housing (2) sleeved on the upper part of the rotating shaft (1), a mounting plate (3) fixedly installed inside the housing (2), the rotating shaft (1) passing through the mounting plate (3), a fixing plate (4) provided at the upper end of the rotating shaft (1), a support block (5) provided between the fixing plate (4) and the mounting plate (3), the support block (5) being fixedly connected to the mounting plate (3), the fixing plate (4) being fixedly connected to the support block (5), and the rotating shaft (1) being rotatably connected to the fixing plate (4); an indicator (6) is fixedly installed at the lower part of the rotating shaft (1).
2. The intrinsically safe limit switch with quick change function and indicator as claimed in claim 1, wherein, A mounting bracket (7) is provided on the rotating shaft (1) located between the housing (2) and the indicator (6). The mounting bracket (7) has an n-shaped cross section. An adjustment plate (8) is provided on the outer wall of the n-shaped vertical part of the mounting bracket (7). A first through hole (9) is provided at the end of the n-shaped vertical part of the mounting bracket (7) away from the horizontal part. A plurality of second through holes (10) that are adapted to the first through hole (9) are arranged in parallel on the adjustment plate (8).
3. The intrinsically safe limit switch with quick change function and indicator as claimed in claim 2, wherein, The adjusting plate (8) is L-shaped, and the second through hole (10) is provided on the vertical part of the L-shape of the adjusting plate (8). The horizontal part of the L-shape of the adjusting plate (8) is provided with a mounting hole (11) for connecting with the actuator.
4. The intrinsically safe limit switch with an indicator quick change function according to claim 2, characterized in that, The horizontal part of the n-shaped mounting bracket (7) is fixedly connected to the housing (2).
5. The intrinsically safe limit switch with an indicator quick change function according to claim 1, characterized in that, The mounting plate (3) is fixedly connected to the housing (2) by the first screw (12), and the fixing plate (4) is fixedly connected to the support block (5) by the second screw (13).
6. The intrinsically safe limit switch with an indicator quick change function according to claim 1, characterized in that, The mounting plate (3) is provided with a terminal block (14) at one end away from the support block (5), and a wiring port (15) is provided on the housing (2) on the side close to the terminal block (14).