Falling stopper

Abstract

The utility model provides a falling stopper, and belongs to the technical field of high-altitude safety instruments. The falling stopper solves the problems that an existing falling stopper is inconvenient to move slowly, and an upper cover is prone to being damaged, and is characterized by comprising a mounting plate provided with a plurality of rotating shafts, blocking teeth, blocking pieces and fixing pieces are arranged on the rotating shafts respectively, a rope passage is arranged on one side of each blocking piece, and the blocking teeth and the fixing pieces are arranged on the other side of the rope passage. A control assembly for controlling the fixing piece is further arranged on the mounting plate, pull rods are arranged on the blocking piece and the fixing piece, a tension spring is arranged between the pull rods, the tension spring pulls the blocking piece to control opening of a rope passage, and a cover plate movably connected with the rotating shaft is arranged on the rotating shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-altitude safety equipment, in particular to a fall arrester. Background Art

[0002] A fall arrester is a device that protects people from falling from heights. It utilizes the difference in falling speed to automatically control the rope, using internal stoppers, a stop plate, and a fixed plate to quickly lock the rope, preventing the person from falling further and potentially causing danger. Fall arresters are widely used in high-altitude workspaces such as construction, power plant maintenance, telecommunications maintenance, and bridge repair.

[0003] The traditional fall arrester is provided with a rotatable shell for inserting the rope, and a through hole is provided on the shell to fix the quick-release buckle. However, the shell without a limit will shake when people are working, and there is a risk of bumping and hitting. The through hole wall is prone to cracks due to friction and impact for a long time. In the event of a sudden fall, the hole wall will break, which will indirectly cause the shell to open and the rope to detach and lose safety protection. In order to prevent falls, the conventional fall arrester has blocking teeth, blocking plates and fixing plates that will also generate locking force during normal descent, making it difficult to operate during descent. Summary of the Invention

[0004] The purpose of the utility model is to provide a fall arrester with simple and easy operation for slow descent in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a fall arrester, characterized in that it includes a mounting plate provided with a plurality of rotating shafts, the rotating shafts are respectively provided with blocking teeth, blocking plates and fixing plates, a rope passage is provided on one side of the blocking plate, the blocking teeth and the fixing plate are provided on the other side of the rope passage, a control component for controlling the fixing plate is also provided on the mounting plate, a pull rod is provided on the blocking plate and the fixing plate, a tension spring is provided between the pull rods, the tension spring pulls the blocking plate to control the opening of the rope passage, and a movably connected cover plate is provided on the rotating shaft.

[0006] In the above-mentioned fall arrester, the mounting plate is provided with a guide cavity

[0007] In the above-mentioned fall arrester, the mounting plate and the cover plate are both provided with hanging holes, one end of the fixing plate is provided with a locking paddle, and the locking paddle is arranged between the hanging holes.

[0008] In the above-mentioned fall arrester, a mounting tube is provided on the mounting plate, and a locking dial is provided on the mounting tube. A limiting platform is provided on the locking dial, and a limiting portion that interferes with the limiting platform is provided on the fixing plate.

[0009] In the above-mentioned fall arrester, a locking keycap is provided in the mounting tube, the mounting tube is provided with symmetrical guide grooves, a guide rod is provided on the locking keycap, a support spring is provided between the guide rod and the mounting tube, and a locking hole for the locking keycap to be engaged is provided on the cover plate.

[0010] In the above-mentioned fall arrester, a mounting shell is provided on the mounting tube, a torsion spring is provided on the mounting shell, and the other end of the torsion spring is placed on the fixing plate, a plurality of positioning cavities are provided on the locking dial, and a plurality of positioning bosses are provided on the mounting shell.

[0011] In the above-mentioned fall arrester, a guide wheel is provided on the mounting plate, and a guide groove is provided on the guide wheel.

[0012] In the above-mentioned fall arrester, a plurality of ribs are protruding from the blocking teeth.

[0013] In the above-mentioned fall arrester, a plurality of dust exhaust observation holes are provided on the cover plate.

[0014] In the above-mentioned fall arrester, a protective cover is provided on the other side of the mounting plate, a plurality of positioning protrusions are provided on the protective cover, a clamping hole for limiting the positioning protrusions is provided on the mounting plate, and a bolt for locking the protective cover is also provided on the mounting plate.

[0015] Compared with the existing technology, this anti-falling device is equipped with a tension spring between the blocking plate and the fixed plate. The tension spring offsets the force of the rope squeezing the blocking plate during slow movement, ensuring the opening of the telescopic passage. The quick-release opening method of pressing the locking key cap can reduce the damage of the cover plate while ensuring the convenience of opening and closing. The guide groove on the guide wheel can reduce the friction and jamming between the telescopic and components, reduce accidental jamming and increase the service life of the rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the fall arrester.

[0017] Figure 2 It is a structural diagram of the fall arrester.

[0018] Figure 3 It is a schematic diagram of the structure inside the protective cover of the fall arrester.

[0019] Figure 4 It is a structural schematic diagram of the installation shell of the fall arrester.

[0020] Figure 5 It is a structural schematic diagram of a half-section of the installation pipe of the fall arrester.

[0021] Figure 6 It is a structural diagram of the installation pipe of the fall arrester.

[0022] Figure 7 It is a structural diagram of the installation pipe of the fall arrester.

[0023] In the figure, 1. cover plate; 2. dust exhaust observation hole; 3. locking hole; 4. hanging hole; 5. locking paddle; 6. control assembly; 7. rotating shaft; 8. mounting plate; 9. limiting platform; 10. limiting part; 11. blocking tooth; 12. rib; 13. blocking plate; 14. positioning protrusion; 15. rope passage; 16. fixing plate; 17. guide groove; 18. guide wheel; 19. locking paddle wheel; 20. positioning cavity; 21. pull rod; 22. bolt; 23. tension spring; 24. snap-on hole; 25. guide cavity; 26. mounting shell; 27. positioning protrusion; 28. torsion spring; 29. ​​mounting tube; 30. guide groove; 31. guide rod; 32. locking keycap; 33. support spring; 34. protective cover. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1-Figure 7 As shown, the fall arrester includes a mounting plate 8 with several rotating shafts 7, and the rotating shafts 7 are respectively provided with blocking teeth 11, blocking pieces 13 and fixing pieces 16. A rope passage 15 is provided on one side of the blocking piece 13, and the blocking teeth 11 and the fixing piece 16 are arranged on the other side of the rope passage 15. The mounting plate 8 is also provided with a control component 6 for controlling the fixing piece 16, and a pull rod 21 is provided on the blocking piece 13 and the fixing piece 16, and a tension spring 23 is provided between the pull rod 21. The tension spring 23 pulls the blocking piece 13 to control the opening of the rope passage 15. A movably connected cover plate 1 is provided on the rotating shaft 7, and the rope passes through the rope passage 15. The rope passage 15 is opened under the action of the tension spring 23. When the user moves slowly, the rope flows normally. When a fall occurs, the rope is squeezed toward the blocking piece 13, so that the other end of the blocking piece 13 is squeezed toward the blocking tooth 11 to bite the rope to death.

[0026] Preferably, a guide cavity 25 is provided on the mounting plate 8.

[0027] Preferably, both the mounting plate 8 and the cover plate 1 are provided with hanging holes 4, and a locking paddle 5 is provided at one end of the fixing plate 16. The locking paddle 5 is arranged between the hanging holes 4, and a buckle can be hung on the hanging hole 4. When a fall occurs, the buckle presses against the locking paddle 5 and closes the rope passage 15 to bite the rope.

[0028] Preferably, a mounting tube 29 is provided on the mounting plate 8, and the mounting tube 29 is provided with a locking dial 19, a limiting platform 9 is provided on the locking dial 19, and a limiting portion 10 that interferes with the limiting platform 9 is provided on the fixing plate 16. The locking dial 19 is rotated to control the limiting platform 9 to interfere with the limiting portion 10 so that the fixing plate 16 moves to engage the rope and fix it.

[0029] Preferably, a locking keycap 32 is provided in the mounting tube 29, and the mounting tube 29 is provided with a symmetrically arranged guide groove 30, a guide rod 31 is provided on the locking keycap 32, and a support spring 33 is provided between the guide rod 31 and the mounting tube 29, and a locking hole 3 for the locking keycap 32 to be engaged is provided on the cover 1. The cover 1 is rotated to open and close, and the support spring 33 controls the locking keycap 32 to be engaged in the locking hole 3 to complete the locking, thereby preventing the cover 1 from being damaged by bumps and collisions caused by shaking. The cover 1 can be rotated to open by pressing the locking keycap 32.

[0030] Preferably, a mounting shell 26 is provided on the mounting tube 29, a torsion spring 28 is provided on the mounting shell 26, and the other end of the torsion spring 28 is placed on the fixing plate 16, a plurality of positioning cavities 20 are provided on the locking dial 19, and a plurality of positioning bosses 27 are provided on the mounting shell 26. The locking cavities 20 and the positioning bosses 27 are engaged with each other to prevent the abnormal rotation of the dial from causing a locking error.

[0031] Preferably, a guide wheel 18 is provided on the mounting plate 8, and a guide groove 17 is provided on the guide wheel 18. The guide groove 17 keeps the telescopic device centered with the guide wheel 18 to prevent the rope from shaking and getting stuck in the gap, while reducing friction and wear between the rope and the fall arrester.

[0032] Preferably, a plurality of ribs 12 are protruding from the blocking tooth 11, and the ribs 12 increase the contact area between the blocking tooth 11 and the rope, thereby increasing the friction force.

[0033] Preferably, the cover plate 1 is provided with a plurality of dust removal observation holes 2, which facilitate the discharge of impurities inside the fall arrester. At the same time, the internal conditions of the fall arrester can be observed through the dust removal observation holes 2 so as to facilitate timely maintenance and repair.

[0034] Preferably, a protective cover plate 34 is provided on the other side of the mounting plate 8, and a plurality of positioning protrusions 14 are provided on the protective cover plate 34. A snap-in hole 24 for limiting the positioning protrusions 14 is provided on the mounting plate 8, and a bolt 22 for locking the protective cover plate 34 is also provided on the mounting plate 8.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0036] Although this document frequently uses terms such as cover plate 1, dust discharge viewing hole 2, locking hole 3, hanging hole 4, locking paddle 5, control assembly 6, rotating shaft 7, mounting plate 8, limiting platform 9, limiting portion 10, blocking tooth 11, rib 12, blocking plate 13, positioning protrusion 14, rope passage 15, fixing plate 16, guide groove 17, guide wheel 18, locking dial wheel 19, positioning cavity 20, pull rod 21, bolt 22, tension spring 23, engaging hole 24, guide cavity 25, mounting housing 26, positioning protrusion 27, torsion spring 28, mounting tube 29, guide groove 30, guide rod 31, locking keycap 32, support spring 33, and protective cover plate 34, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A fall arrester, characterized in that: The utility model comprises a mounting plate (8) provided with a plurality of rotating shafts (7), wherein the rotating shafts (7) are respectively provided with blocking teeth (11), blocking sheets (13) and fixing sheets (16), a rope passage (15) is provided on one side of the blocking sheet (13), the blocking teeth (11) and the fixing sheet (16) are provided on the other side of the rope passage (15), the mounting plate (8) is further provided with a control component (6) for controlling the fixing sheet (16), a pull rod (21) is provided on the blocking sheet (13) and the fixing sheet (16), a tension spring (23) is provided between the pull rod (21), the tension spring (23) pulls the blocking sheet (13) to control the opening of the rope passage (15), and a movably connected cover plate (1) is provided on the rotating shaft (7).

2. A fall arrester according to claim 1, characterized in that: A guide cavity (25) is provided on the mounting plate (8).

3. A fall arrester according to claim 1, characterized in that: The mounting plate (8) and the cover plate (1) are both provided with hanging holes (4), one end of the fixing plate (16) is provided with a locking paddle (5), and the locking paddle (5) is arranged between the hanging holes (4).

4. A fall arrester according to claim 1, characterized in that: The mounting plate (8) is provided with a mounting tube (29), and the mounting tube (29) is provided with a locking dial (19), the locking dial (19) is provided with a limiting platform (9), and the fixing plate (16) is provided with a limiting portion (10) that contacts the limiting platform (9).

5. A fall arrester according to claim 4, characterized in that: A locking keycap (32) is provided in the mounting tube (29), a symmetrically arranged guide groove (30) is provided on the mounting tube (29), a guide rod (31) is provided on the locking keycap (32), a support spring (33) is provided between the guide rod (31) and the mounting tube (29), and a locking hole (3) for the locking keycap (32) to be engaged is provided on the cover plate (1).

6. A fall arrester according to claim 4, characterized in that: The mounting tube (29) is provided with a mounting shell (26), the mounting shell (26) is provided with a torsion spring (28), and the other end of the torsion spring (28) is placed on the fixing plate (16), the locking dial (19) is provided with a plurality of positioning cavities (20), and a plurality of positioning bosses (27) are provided on the mounting shell (26).

7. A fall arrester according to claim 1, characterized in that: A guide wheel (18) is provided on the mounting plate (8), and a guide groove (17) is provided on the guide wheel (18).

8. A fall arrester according to claim 1, characterized in that: A plurality of ribs (12) are protruding from the blocking teeth (11).

9. A fall arrester according to claim 1, characterized in that: The cover plate (1) is provided with a plurality of dust discharge observation holes (2).

10. A fall arrester according to claim 1, characterized in that: A protective cover plate (34) is provided on the other side of the mounting plate (8), a plurality of positioning protrusions (14) are provided on the protective cover plate (34), a clamping hole (24) for limiting the positioning protrusions (14) is provided on the mounting plate (8), and a bolt (22) for locking the protective cover plate (34) is also provided on the mounting plate (8).

Images