一种具有横向与纵向双向拉脱并可靠解除限位的保险装置
By designing a safety device that can reliably release the limit by pulling out in both the horizontal and vertical directions, and by using the pre-throw pull-out and its own weight as environmental excitation conditions, the problem of insufficient reliability of existing safety devices is solved, and the reliable release of the safety bar and the prevention of accidental release are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN JIANGJI SPECIAL IND CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, many safety devices are unable to reliably release the rotor under environmental forces or conditions. The prior art is insufficient in terms of reliability in releasing the rotor under environmental forces or conditions.
Design a safety device with bidirectional pull-out in both the lateral and longitudinal directions and reliable release of the limit. Utilize the pull-out before throwing and its own weight as the environmental excitation conditions for releasing the safety. The device achieves bidirectional pull-out in both the lateral and longitudinal directions and reliable release of the limit by combining a shear pin, a pressure pin, a longitudinal safety pull ring, a spring plate, a fixing screw sleeve, a locking pin spring, a locking pin, a safety rod, a base, a lateral safety pull ring, and a pull-out clamp.
It achieves the function of reliably releasing the safety when needed, preventing accidental release of the safety. At the same time, it uses the lateral pull-out before throwing and the longitudinal pull-out due to its own gravity as environmental excitation conditions to ensure the reliable release of the safety bar, thus improving the reliability of the safety device.
Smart Images
Figure CN224511449U_ABST
Abstract
Claims
1. A safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking, characterized in that, include: Shear pin (1), pressure pin (2), longitudinal safety pull ring (3), spring plate (4), fixing screw sleeve (5), locking pin spring (6), locking pin (7), safety rod (8), seat body (9), transverse safety pull ring (10), pull-out clamp (11); the safety rod (8) is set in the center hole of the seat body (9), with an annular groove on the upper part and protruding from the center hole; a protruding block is set radially on the top of the seat body (9), with a radial diameter changing hole in the protruding block, the small end of the locking pin (7) passes through the radial hole and is embedded in the annular groove, and the large end of the locking pin (7) presses against the locking pin spring (6) and Located inside the large hole of the variable diameter hole; the right end of the pressure pin (2) is embedded in the groove of the left end face of the locking pin (7) and locked by the shear pin (1); a bowl-shaped spring plate (4) is sleeved on the outer shoulder step of the left end of the pressure pin (2), and the longitudinal safety pull ring (3) is sleeved on the left end of the pressure pin (2) and pressed on the left side of the spring plate (4); the fixing screw sleeve (5) is threaded to the variable diameter hole and fixed outside the longitudinal safety pull ring (3) and the spring plate (4); the pull-out clamp (11) is set on the top of the seat (9), and the transverse safety pull ring (10) passes through the pressure pin (2) and the pull-out clamp (11).
2. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 1, characterized in that, The inner diameter of the fixing sleeve (5) is smaller than the outer diameter of the large end of the locking pin (7), so that the locking pin (7) will not pop out of the seat body 9 after the pin is pulled out.
3. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 2, characterized in that, The spring plate (4) includes an annular seat and multiple bent, dispersed toothed plates. The annular seat is sleeved on the outer shoulder step of the left end of the pressure pin (2), and the toothed plates are dispersed outside the pressure pin (2) and pressed by the fixing screw sleeve (5).
4. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 3, characterized in that, The shear pin (1) is a cylinder with a small diameter. It passes through the round hole of the pressure pin (2) and the locking pin (7) to fix them together. When subjected to force, it breaks, causing the pressure pin (2) and the locking pin (7) to separate. The pressure pin (2) is a cylindrical structure. The left end is threaded and fixed to the longitudinal safety pull ring (3). The right end of the cylinder extends into the concave hole of the locking pin (7) and passes through the through hole to connect the shear pin (1) and the locking pin (7). At the same time, the middle part of the pressure pin (2) has a through hole structure, and the slender column of the transverse safety pull ring (10) passes through the middle through hole.
5. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 4, characterized in that, The longitudinal safety pull ring (3) is a cylinder with one end being a ring shape for connecting with an external hook, and the other end being an internal thread for connecting with a pressure pin (2) and fixing a spring sheet (4) in the middle.
6. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 5, characterized in that, The teeth of the spring sheet (4) are distributed in a conical shape and are stuck in the conical circular wall inside the fixing screw sleeve (5). The teeth deform elastically to generate elastic force. When the pull-out force is greater than the elastic force, the spring sheet (4) is released from the fixing screw sleeve (5).
7. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 6, characterized in that, The fixing sleeve (5) is a hollow round tube structure. The external thread is connected and fixed to the seat (9). The inside is a smooth round hole. One end of the round hole is a cone that fits the spring plate (4). The transverse safety pull ring (10), pressure pin (2), and locking pin (7) are fixed in the seat (9) through the spring plate (4).
8. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from the blocking according to claim 7, characterized in that, The locking pin spring (6) is a cylindrical spring. It is normally compressed by the locking pin (7) between the large cylindrical surface of the locking pin (7) and the bottom surface of the inner hole of the seat (9). When the longitudinal safety pull ring (3) is pulled to release the restriction on the pressure pin (2), spring plate (4) and locking pin (7), the locking pin spring (6) pushes the locking pin (7) to move outward to release the restriction on the safety bar (8).
9. The safety device as described in claim 8, characterized in that it has a bidirectional pull-out mechanism in both the lateral and longitudinal directions and reliably releases the limiting position, and is characterized in that... The locking pin (7) is a cylinder with one end short and thick and the other end thin and long. The short and thick end has a concave circular hole and a through hole for installing the shear pin (1). One end of the pin contacts the pressure pin (2), and the other end extends into the annular groove of the safety bar (8) to restrict the movement of the safety bar (8).
10. The safety device with bidirectional lateral and longitudinal pull-off and reliable release from blocking according to claim 9, characterized in that, The safety bar (8) is fixed in the seat (9) by threads, and the locking pin (7) extends into the annular groove of the safety bar (8) and controls its movement; The transverse safety pull ring (10) is a thin rod-shaped cylinder. The thin rod passes through the seat (9) and the pressure pin (2) to prevent the pressure pin (2) from detaching from the seat (9) and is clamped by an elastic pull-out clamp (11). The pull-out clamp (11) is a clamp made of elastic steel sheet, which clamps the thin rod end of the transverse safety pull ring (10) to prevent the transverse safety pull ring (10) from being detached from the pressure pin (2) due to impact or vibration.