CN220642505U

CN220642505U - Scram locking mechanism

Info

Publication number: CN220642505U
Application number: CN202320954837.4U
Authority: CN
Inventors: 韩军
Original assignee: Shanghai Hongtai Intelligent Technology Co ltd
Current assignee: Shanghai Hongtai Intelligent Technology Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2024-03-22
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to the field of locking limiting mechanisms, in particular to an emergency stop locking mechanism. The device comprises a fixing frame and a locking mechanism; the locking mechanism comprises a fixed sleeve, a torsion spring, a tight supporting frame and a triggering component which can release the limit of the tight supporting frame when being pressed down so as to drive the tight supporting frame to rotate by utilizing torsion of the torsion spring, two ends of the torsion spring are respectively connected with the fixed sleeve and the tight supporting frame, the fixed sleeve is arranged on a fixed frame, and the tight supporting frame is rotationally arranged on the fixed frame. The utility model can immediately abut against the rope to realize emergency stop when applied to the lifter.

Description

Scram locking mechanism

Technical Field

The utility model relates to the field of locking limiting mechanisms, in particular to an emergency stop locking mechanism.

Background

The elevator is a machine for driving personnel or goods to ascend and descend, and the personnel can move along the rope under the conditions of fire-fighting training, fire-fighting rescue, personnel transfer, high-altitude operation, deep well operation and the like, and the elevator is required to be used under the conditions.

When personnel go up and down on the rope, if the obstacle that probably influences the safety of going ahead appears in the direction of going forward, because the dead weight and the inertia of personnel and lift itself, can make lift and rope take place certain relative slip, can't make the lift stop the removal immediately, can't reach scram purpose, probably appear the incident.

Disclosure of Invention

The utility model aims to solve the problems in the background technology and provides an emergency stop locking mechanism which is applied to an elevator and can immediately abut against a rope to realize emergency stop.

The technical scheme of the utility model is that the emergency stop locking mechanism comprises a fixing frame and a locking mechanism; the locking mechanism comprises a fixed sleeve, a torsion spring, a tight supporting frame and a triggering component which can release the limit of the tight supporting frame when being pressed down so as to drive the tight supporting frame to rotate by utilizing torsion of the torsion spring, two ends of the torsion spring are respectively connected with the fixed sleeve and the tight supporting frame, the fixed sleeve is arranged on a fixed frame, and the tight supporting frame is rotationally arranged on the fixed frame.

Preferably, the fixing frame is provided with a cylindrical part, the fixing sleeve is arranged at the cylindrical part, and the abutting frame is rotatably arranged on the cylindrical part.

Preferably, the fixing frame is provided with a mounting groove;

the trigger assembly comprises a button, a connecting rod, a sliding frame and an elastic piece a which are sequentially connected, the sliding frame is provided with a limiting rod part, the connecting rod penetrates through the fixing frame, the sliding frame is arranged at the mounting groove in a sliding manner, and the elastic piece a is positioned at the inner side of the mounting groove;

the end face of one side of the propping frame, which faces the sliding frame, is uniformly provided with a plurality of limiting grooves for propping in the limiting rod part around the rotating central shaft of the propping frame.

Preferably, the outer end of the abutting frame is an abutting end, and the abutting end is provided with an anti-skid groove.

Preferably, the device also comprises a back-pushing assembly, wherein the back-pushing assembly comprises a rotating frame, a rotating handle, an elastic assembly and a pawl, the rotating frame is rotatably arranged on the abutting frame, the rotating handle is arranged on the rotating frame, the elastic assembly is connected between the rotating frame and the pawl, and the pawl is rotatably arranged on the rotating frame;

the supporting and tightening frame is uniformly provided with ratchets for clamping the pawls around the rotating central shaft of the supporting and tightening frame.

Preferably, the abutting frame is provided with a circumferential surface distributed around a rotation center shaft of the abutting frame, and the rotating frame is rotatably arranged at the circumferential surface.

Preferably, the pawl has a plunger portion; the rotating frame is provided with a limiting channel for the movement of the inserted rod part, and the rotating frame is provided with a stop rod part for blocking the pawl.

Preferably, the elastic component comprises a bolt and an elastic piece b, a threaded hole is formed in the rotating frame, the bolt is connected to the threaded hole, two ends of the elastic piece b are connected with the bolt and the pawl respectively, and one end of the elastic piece b connected with the bolt is located at the inner side of the threaded hole.

Preferably, the rotating frame is detachably connected with a cover plate.

Compared with the prior art, the utility model has the following beneficial technical effects:

the utility model can immediately abut against the rope to realize emergency stop when applied to the lifter. The fixing frame is mounted on the machine shell. When needs scram and carry out the locking to the rope, pressing trigger component, trigger component triggers and releases the spacing to supporting tight frame, and torsion spring self torsion can drive to support tight frame anticlockwise rotation until supporting tight frame with the rope support tightly on the leading truck, realized the locking to the rope promptly, easy operation is safer.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a partial structural cross-sectional view of an embodiment of the present utility model in one place;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a partial structural cross-sectional view of an embodiment of the present utility model at another location;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

FIG. 6 is an exploded view of a partial structure of an embodiment of the present utility model;

FIG. 7 is a schematic structural view of a fixing frame according to an embodiment of the present utility model;

fig. 8 is a schematic structural view of a rotating frame according to an embodiment of the present utility model.

Reference numerals: 1. a housing; 2. a limiting frame; 3. a rope pulley; 4. a guide frame; 5. a fixing frame; 501. a mounting groove; 51. a cylindrical portion; 6. a button; 7. a connecting rod; 8. a carriage; 81. a limit rod part; 9. an elastic member a; 10. a fixed sleeve; 11. a torsion spring; 12. a tightening frame; 121. a limit groove; 122. a ratchet; 123. an anti-skid groove; 13. a rotating frame; 131. a limiting channel; 132. a stop lever portion; 133. a cover plate; 14. a rotating handle; 15. a bolt; 16. an elastic member b; 17. a pawl; 171. the rod inserting part.

Detailed Description

Example 1

As shown in fig. 1 to 6, the emergency stop locking mechanism provided in this embodiment includes a fixing frame 5 and a locking mechanism; the locking mechanism comprises a fixed sleeve 10, a torsion spring 11, a tight support 12 and a trigger component which can release the limit of the tight support 12 when being pressed down so as to drive the tight support 12 to rotate by utilizing the torsion force of the torsion spring 11, wherein two ends of the torsion spring 11 are respectively connected with the fixed sleeve 10 and the tight support 12, the fixed frame 5 is provided with a cylindrical part 51, the fixed sleeve 10 is arranged at the cylindrical part 51, the tight support 12 is rotationally arranged on the cylindrical part 51, the outer end of the tight support 12 is a tight support end, and the tight support end is provided with an anti-slip groove 123, so that the friction force of the rope is improved.

The machine shell 1 is provided with a limiting frame 2, a rope pulley 3 and a guide frame 4, a rope can pass through the limiting frame 2, pass around the lower part of the rope pulley 3 and be clamped on the guide frame 4, the machine shell 1 is provided with a driving device for driving the rope pulley 3 to rotate, and the driving device drives the rope pulley 3 to rotate so as to enable the lifter to lift on the rope.

The embodiment can immediately abut against the rope to realize emergency stop when applied to the lifter. The fixing frame 5 is mounted to the cabinet 1. When the emergency stop is needed and the rope is locked, the trigger component is pressed down, the trigger component triggers and releases the limit of the abutting frame 12, the torsion spring 11 can drive the abutting frame 12 to rotate anticlockwise until the abutting frame 12 abuts the rope on the guide frame 4, and therefore the rope is locked, the operation is simple, and the safety is improved.

Example two

As shown in fig. 1 to 8, in the embodiment, compared with the first embodiment, the mounting groove 501 is provided on the fixing frame 5. The trigger assembly comprises a button 6, a connecting rod 7, a sliding frame 8 and an elastic piece a9 which are sequentially connected, the sliding frame 8 is provided with a limiting rod part 81, the connecting rod 7 penetrates through the fixed frame 5, the sliding frame 8 is arranged at the installation groove 501 in a sliding mode, the elastic piece a9 is located on the inner side of the installation groove 501, one end, far away from the sliding frame 8, of the elastic piece a9 is connected with the outer surface of the shell 1, and the elastic piece a9 can adopt a compression spring.

The abutting frame 12 is provided with a plurality of limiting grooves 121 for the limiting rod 81 to abut on around the rotating central shaft of the abutting frame 12 on one side end face of the sliding frame 8.

In this embodiment, when the abutting frame 12 needs to be triggered to rotate, the button 6 is pressed, the button 6 drives the sliding frame 8 to slide through the connecting rod 7, the limiting rod 81 moves away from the limiting groove 121, at this time, the torsion of the torsion spring 11 drives the abutting frame 12 to rotate anticlockwise, and the abutting frame 12 abuts the rope on the guide frame 4, so that effective emergency stop treatment is achieved.

Example III

As shown in fig. 1-8, in comparison with the first embodiment, the emergency stop locking mechanism according to the present embodiment further includes a thrust back assembly, the thrust back assembly includes a rotating frame 13, a rotating handle 14, a bolt 15, an elastic member b16 and a pawl 17, the abutting frame 12 has a circumferential surface distributed around a rotation center axis of the abutting frame 12, the rotating frame 13 is rotatably disposed at the circumferential surface, a threaded hole is disposed on the rotating frame 13, the rotating handle 14 is disposed on the rotating frame 13, the bolt 15 is connected at the threaded hole, two ends of the elastic member b16 are respectively connected with the bolt 15 and the pawl 17, one end of the elastic member b16 connected with the bolt 15 is located inside the threaded hole, the pawl 17 is rotatably disposed on the rotating frame 13, the elastic member b16 may employ a compression spring, and the elastic member b16 can abut the pawl 17 at the ratchet 122. The rotating frame 13 is detachably connected with a cover plate 133, and the cover plate 133 can shield and protect the pawls 17 on the inner side.

Ratchet teeth 122 for clamping the pawls 17 are uniformly arranged on the abutting frame 12 around the rotation center shaft of the abutting frame 12.

After the button 6 is pressed to trigger the tightening frame 12 to rotate anticlockwise and tightly press the rope on the guide frame 4, if the tightening needs to be released, the button 6 can be pressed and the pressing state is maintained, the triggering component breaks away from the limit of the tightening frame 12, then the rotating handle 14 is rotated anticlockwise, the rotating handle 14 drives the rotating frame 13 to rotate, the rotating frame 13 drives the pawl 17 to rotate anticlockwise, the pawl 17 bounces off at the ratchet 122, at the moment, the rotating handle 14 can be reversely rotated clockwise, the ratchet 122 is pushed by the pawl 17 to rotate clockwise, the tightening frame 12 rotates clockwise, the tightening frame 12 releases the tightening of the rope, finally the button 6 is released, the tightening frame 12 is limited again by the triggering component, and the elastic potential energy is stored in the torsion spring 11 for the next pressing triggering operation.

The pawl 17 has a lever insertion portion 171; the rotating frame 13 is provided with a limiting channel 131 for the movement of the inserting rod portion 171, the rotating frame 13 is provided with a stop rod portion 132 for blocking the pawl 17, the inserting rod portion 171 moves in the limiting channel 131, and the stop rod portion 132 can limit the pawl 17, so that the pawl 17 can stably rotate on the rotating frame 13 and can be used for retracting the abutting frame 12.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. A scram locking mechanism, comprising:

a fixing frame (5);

the locking mechanism comprises a fixed sleeve (10), a torsion spring (11), a tight support (12) and a trigger assembly capable of releasing the limit of the tight support (12) when being pressed down so as to drive the tight support (12) to rotate by utilizing the torsion force of the torsion spring (11), wherein two ends of the torsion spring (11) are respectively connected with the fixed sleeve (10) and the tight support (12), the fixed sleeve (10) is arranged on a fixed frame (5), and the tight support (12) is rotationally arranged on the fixed frame (5).

2. The emergency stop locking mechanism according to claim 1, wherein the fixing frame (5) has a cylindrical portion (51), the fixing sleeve (10) is provided at the cylindrical portion (51), and the abutting frame (12) is rotatably provided on the cylindrical portion (51).

3. The emergency stop locking mechanism according to claim 1, wherein the fixing frame (5) is provided with a mounting groove (501);

the trigger assembly comprises a button (6), a connecting rod (7), a sliding frame (8) and an elastic piece a (9) which are sequentially connected, wherein the sliding frame (8) is provided with a limiting rod part (81), the connecting rod (7) penetrates through the fixing frame (5), the sliding frame (8) is arranged at the mounting groove (501) in a sliding mode, and the elastic piece a (9) is positioned at the inner side of the mounting groove (501);

the abutting frame (12) is uniformly provided with a plurality of limiting grooves (121) for the limiting rod part (81) to abut into by rotating the central shaft around the abutting frame (12) towards one side end surface of the sliding frame (8).

4. The emergency stop locking mechanism according to claim 1, wherein the outer end of the abutment frame (12) is an abutment end provided with an anti-slip groove (123).

5. The emergency stop locking mechanism according to claim 1, further comprising a reverse pushing assembly, wherein the reverse pushing assembly comprises a rotating frame (13), a rotating handle (14), an elastic assembly and a pawl (17), the rotating frame (13) is rotatably arranged on the abutting frame (12), the rotating handle (14) is arranged on the rotating frame (13), the elastic assembly is connected between the rotating frame (13) and the pawl (17), and the pawl (17) is rotatably arranged on the rotating frame (13);

ratchet teeth (122) for clamping the pawl (17) are uniformly arranged on the abutting frame (12) around the rotation central shaft of the abutting frame (12).

6. The emergency stop locking mechanism according to claim 5, wherein the abutment frame (12) has a circumferential surface distributed around a rotation center axis of the abutment frame (12), and the rotating frame (13) is rotatably provided at the circumferential surface.

7. A scram locking mechanism as claimed in claim 5, wherein the pawl (17) has a plunger portion (171); the rotating frame (13) is provided with a limiting channel (131) for the movement of the inserting rod part (171), and the rotating frame (13) is provided with a stop rod part (132) for blocking the pawl (17).

8. The emergency stop locking mechanism according to claim 5, wherein the elastic assembly comprises a bolt (15) and an elastic member b (16), a threaded hole is formed in the rotating frame (13), the bolt (15) is connected to the threaded hole, two ends of the elastic member b (16) are respectively connected to the bolt (15) and the pawl (17), and one end of the elastic member b (16) connected to the bolt (15) is located inside the threaded hole.

9. The emergency stop locking mechanism according to claim 5, wherein the turret (13) is detachably connected with a cover plate (133).