CN115303952A

CN115303952A - Falling protector capable of adjusting buffer distance according to falling height

Info

Publication number: CN115303952A
Application number: CN202210890358.0A
Authority: CN
Inventors: 张保慧
Original assignee: Lafley Fall Prevention System Technology Suzhou Co ltd
Current assignee: Lafley Fall Prevention System Technology Suzhou Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-08

Abstract

The invention relates to the technical field of falling protectors, and discloses a falling protector capable of adjusting a buffer distance according to falling height. The falling protector main body can rotate by the rotary connection between the rotary shaft and the connecting plate, the insertion block is connected with the insertion shaft through the bolt, the insertion shaft can be prevented from falling off, the safety is better, the falling protector main body can integrally rotate and can also limit the rotation, the rotating block can drive the inserted bar to rotate, the inserted bar can be adjusted according to the height difference to buffer, a sliding groove is formed in the track block, a plurality of balls are uniformly arranged in the sliding groove, the steel wire rope cannot be abraded, the safety coefficient can be improved, the friction can be reduced, and the use smoothness is improved.

Description

Falling protector capable of adjusting buffer distance according to falling height

Technical Field

The invention relates to the technical field of falling protectors, in particular to a falling protector capable of adjusting a buffer distance according to a falling height.

Background

The falling protector is also called a speed difference device, is a product with a protection function, can quickly brake and lock falling objects within a limited distance, is suitable for hoisting goods, protects the life safety of ground operators and prevents the objects of the hoisted workpieces from being damaged, and is automatically controlled by utilizing the falling speed difference of the objects, so that the falling protector can be used for hanging high and low. The safety protection device is suitable for safety protection when a suspended workpiece is prevented from accidentally falling during hoisting of the overhead travelling crane, can effectively protect life safety of ground operators and damage of the suspended workpiece, and is applied to high-place operation places such as metallurgical automobile manufacturing, petrochemical engineering, engineering construction, electric power, ships, communication, pharmacy, bridges and the like.

The safety hook commonly used is when using, often can not rotate, make the safety hook can make the nylon rope who is used for connecting when using twist reverse, it is comparatively inconvenient to use, can not select whether the safety hook rotates as required, be unfavorable for the nimble use under the many occasions, and the bottom of safety hook can protect wire rope though, still have the friction when using, influence and use smoothness and security, because the height difference that uses, the distance of buffering is also different, the safety hook commonly used does not possess better buffer structure, can not adjust according to the height. In response to this situation, those skilled in the art have provided a fall arrester with a damping distance that can be adjusted according to the height of the fall.

Disclosure of Invention

The invention aims to provide a falling protector capable of adjusting a buffer distance according to falling height, and aims to solve the problems that a nylon rope for connection proposed in the background art is twisted, the smoothness and safety of use are influenced, and the buffer distance cannot be adjusted according to the height.

In order to achieve the purpose, the invention provides the following technical scheme:

the falling protector comprises a falling protector main body, wherein a steel wire rope is arranged inside the falling protector main body, a hanging block is arranged at the top of the falling protector main body, a rotating assembly is installed on the hanging block, an anti-friction assembly is fixedly installed at the bottom of the falling protector main body, and a buffer assembly is installed at the bottom end of the steel wire rope.

The rotating assembly comprises an inserting shaft, the inserting shaft is slidably inserted in the hanging block, two notches are symmetrically formed in two ends of the hanging block, two lantern rings are further sleeved on the inserting shaft, the lantern rings are located on two sides of the hanging block, vertical rods are fixedly mounted at the tops of the two lantern rings, a connecting plate is fixedly mounted at the top ends of the two vertical rods, a rotating shaft is slidably inserted on the connecting plate, a first hanging ring is fixedly mounted at the top end of the rotating shaft, the bottom of the rotating shaft extends between the two vertical rods and is fixedly provided with a limiting plate, two inserting blocks are inserted on the inserting shaft, a nut is arranged at one end of each inserting block through the inserting shaft and is installed through threads, each inserting block is fixedly connected with the inserting shaft through a bolt, a top column is fixedly mounted at the top of the hanging block, a clamping block is sleeved at the top of the top column, the rotating block is installed on the side face of the top column through threads, the top of the rotating block is in contact with the bottom of the clamping block, a limiting groove is formed in the bottom of the limiting plate, and the top of the inserting block is in the limiting groove.

The buffer component comprises a buffer cylinder, a steel wire rope is inserted in the buffer cylinder, the bottom of the buffer cylinder is fixedly provided with a limiting block, from top to bottom in the buffer cylinder, a circular plate is sequentially arranged in a sliding mode, a first insertion plate and a second insertion plate are arranged between the circular plate and the first insertion plate, a spring is arranged between the first insertion plate and the second insertion plate, a ring groove is formed in the side face of the first insertion plate and the side face of the second insertion plate, a connecting rope is fixedly arranged at the center of the bottom of the circular plate, the bottom end of the connecting rope penetrates through the first insertion plate, the second insertion plate and the three spring extend to the outside of the buffer cylinder, and the bottom of the connecting rope is fixedly provided with a second lifting ring.

As a still further scheme of the invention: the top of fore-set sets up to positive quadrangular prism, and the fixture block sets up to positive quadrangular prism, and the groove at fixture block top sets up to positive quadrangular prism, and the spacing groove also sets up to positive quadrangular prism, and fore-set and fixture block are the cooperation component, and fixture block and spacing groove are the cooperation component.

As a still further scheme of the invention: one end of the insert block is arranged to be a cylinder, the middle of the insert block is arranged to be a quadrangular prism, the other end of the insert block is arranged to be a regular quadrangular prism, one end of the insert block, which is arranged to be the regular quadrangular prism, is in contact with the notch, and the middle of the insert block is arranged in the insert shaft.

As a still further scheme of the invention: the side of buffer cylinder is fixed mounting still has two sets of horizontal section of thick bamboo, and every horizontal section of thick bamboo of group is provided with two, and two horizontal section of thick bamboos fixed mounting are in the side of buffer cylinder symmetrically, and it has the inserted bar to peg graft in the horizontal section of thick bamboo, and the side fixed mounting of inserted bar has a circular block, and the circular block setting is in the inside of horizontal section of thick bamboo, and the side of circular block passes through the inner wall connection of screw thread with horizontal section of thick bamboo.

As a still further scheme of the invention: one end of the inserted bar runs through one side of the transverse cylinder and is fixedly provided with a rotating block, anti-slip grains are arranged on the rotating block, and the other end of the inserted bar runs through the other side of the transverse cylinder and the side face of the buffer cylinder and extends into the annular groove.

As a still further scheme of the invention: two of the two groups of inserted bars are respectively inserted in the annular grooves on the side surfaces of the first inserting plate and the second inserting plate, and the inserted bars and the annular grooves are matched components.

As a still further scheme of the invention: the anti-friction assembly comprises a cylinder, an inner groove is formed in the cylinder, a convex ring is fixedly mounted at the center of the bottom of the falling protector body, the convex ring is connected with the center of the top of the cylinder through threads, a steel wire rope penetrates through the bottom of the falling protector body, the convex ring and the inner groove, a plurality of track blocks are fixedly mounted on the side face of the inner groove at equal intervals from top to bottom, a sliding groove is formed in each track block, and a plurality of balls are arranged in the sliding groove.

As a still further scheme of the invention: the top of the cylinder is symmetrically and fixedly provided with two convex blocks, and the convex blocks are fixedly connected with the bottom of the falling protector main body through bolts.

Compared with the prior art, the invention has the beneficial effects that:

1. the rotating shaft is rotatably connected with the connecting plate, so that the rotation of the falling protector main body can be realized, when the rotation is not needed, the rotating block can be rotated to upwards push the clamping block, the clamping block is inserted into the limiting groove, the top column and the rotating shaft are integrated, the falling protector main body can not conveniently rotate, the falling protector main body can be conveniently used on site, the sleeve ring is sleeved on the inserting shaft, the inserting block can limit the sleeve ring, and the inserting block is connected with the inserting shaft through the bolt, so that the inserting shaft can be prevented from falling off, the safety is good, and the falling protector main body can integrally rotate and can also limit the rotation;

2. the rotating block can be rotated to drive the inserting rod to rotate and can be inserted into the annular groove, when the inserting rod is inserted into the annular groove on the first inserting plate, the spring at the top is stressed and buffered, when the buffer cylinder is inserted into the annular groove on the side surface of the second inserting plate, the two springs are stressed and buffered, and when the inserting rod is not inserted into the annular groove, the three springs realize buffering and can be adjusted according to different heights;

3. the bulge loop passes through threaded connection with the drum, and the lug is fixed spacingly through the bolt with the safety hook main part, has seted up the spout in the track piece, evenly is provided with a plurality of balls in the spout, can not cause wearing and tearing to wire rope, can improve factor of safety, can also reduce the friction, improves the smooth and easy degree of using.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic view of a rotary assembly according to the present invention;

FIG. 3 is a partial front cross-sectional view of a rotating assembly according to the present invention;

FIG. 4 is a schematic front sectional view of the anti-friction assembly of the present invention;

FIG. 5 is a front cross-sectional view of a buffer assembly according to the present invention.

In the figure: 1. a fall arrester body; 2. a rotating assembly; 3. an anti-friction component; 4. a buffer assembly; 11. a wire rope; 12. hanging a block; 21. inserting a shaft; 22. a collar; 23. a vertical rod; 24. a connecting plate; 25. cutting; 26. inserting a block; 27. a rotating shaft; 28. a first hoisting ring; 29. a limiting plate; 210. a top pillar; 211. rotating the block; 212. a clamping block; 213. a limiting groove; 31. a cylinder; 32. a track block; 33. a chute; 34. a ball bearing; 35. a bump; 36. a convex ring; 37. an inner tank; 41. a buffer cylinder; 42. a limiting block; 43. a circular plate; 44. connecting ropes; 45. a spring; 46. a first board insert; 47. a second board insert; 48. an annular groove; 49. a transverse cylinder; 410. inserting a rod; 411. a circular block; 412. rotating the block; 413. and a second hanging ring.

Detailed Description

In the following, referring to fig. 1 to 5, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, in which:

the utility model provides a can be according to falling height control buffer distance's safety hook, includes safety hook main part 1, and the inside of safety hook main part 1 is provided with wire rope 11, and the top of safety hook main part 1 is provided with hanging piece 12, installs rotating assembly 2 on the hanging piece 12, and the bottom fixed mounting of safety hook main part 1 has antifriction subassembly 3, and buffer unit 4 is installed to wire rope 11's bottom.

The rotating assembly 2 comprises an inserting shaft 21, the inserting shaft 21 is slidably inserted in the hanging block 12, two notches 25 are symmetrically formed in two ends of the hanging block 12, two lantern rings 22 are further sleeved on the inserting shaft 21, the lantern rings 22 are located on two sides of the hanging block 12, vertical rods 23 are fixedly mounted at the tops of the two lantern rings 22, a connecting plate 24 is fixedly mounted at the top ends of the two vertical rods 23, a rotating shaft 27 is slidably inserted on the connecting plate 24, a first hanging ring 28 is fixedly mounted at the top end of the rotating shaft 27, the bottom of the rotating shaft 27 extends between the two vertical rods 23, a limiting plate 29 is fixedly mounted between the two vertical rods 23, two inserting blocks 26 are inserted on the inserting shaft 21 in an inserting mode, a nut is mounted at one end of each inserting block 26 in a penetrating mode through the inserting shaft 21 and installed through threads, the inserting blocks 26 are fixedly connected with the inserting shaft 21 through bolts, a top column 210 is fixedly mounted at the top of the hanging block 12, a clamping block 212 is sleeved at the top of the top column 210, a rotating block 211 is mounted through threads, the bottom of the rotating block 211 is in contact with the bottom of the limiting plate 29, a limiting groove 213 is formed in the top of the clamping block 212.

Buffer unit 4 includes buffer cylinder 41, wire rope 11 pegs graft in buffer cylinder 41, and the bottom fixed mounting of buffer cylinder 41 has stopper 42, from the top down slidable mounting has plectane 43 in proper order in buffer cylinder 41, first picture peg 46 and second picture peg 47, between plectane 43 and first picture peg 46, between first picture peg 46 and the second picture peg 47, all be provided with spring 45 between the bottom inner wall of second picture peg 47 and buffer cylinder 41, ring channel 48 has all been seted up to the side of first picture peg 46 and second picture peg 47, the bottom central authorities fixed mounting of plectane 43 has connection rope 44, first picture peg 46 is run through to connection rope 44 bottom, second picture peg 47 and three spring 45 extend to the outside of buffer cylinder 41, and the bottom of connection rope 44 still fixed mounting has second rings 413.

In fig. 1, 2 and 3: the top of the top column 210 is provided with a regular quadrangular prism, the fixture block 212 is provided with a regular quadrangular prism, the groove at the top of the fixture block 212 is provided with a regular quadrangular prism, the limiting groove 213 is also provided with a regular quadrangular prism, the top column 210 and the fixture block 212 are matched components, and the fixture block 212 and the limiting groove 213 are matched components and can limit mutually; the one end of inserted block 26 sets up to the cylinder, and the middle part of inserted block 26 sets up to the quadrangular prism, and the other end of inserted block 26 sets up to the regular quadrangular prism, and sets up to the one end and the 25 contact of incision that the regular quadrangular prism on the inserted block 26, and the middle part setting of inserted block 26 can carry on spacingly to inserting axle 21 in inserting axle 21, further improves the security.

In fig. 1 and 5: two groups of transverse cylinders 49 are fixedly mounted on the side surface of the buffer cylinder 41, two transverse cylinders 49 are arranged on each group of transverse cylinders 49, the two transverse cylinders 49 are symmetrically and fixedly mounted on the side surface of the buffer cylinder 41, an insertion rod 410 is inserted into each transverse cylinder 49, a circular block 411 is fixedly mounted on the side surface of each insertion rod 410, the circular block 411 is arranged inside each transverse cylinder 49, and the side surface of each circular block 411 is connected with the inner wall of each transverse cylinder 49 through threads, so that the buffer performance can be controlled; one end of the inserted link 410 penetrates through one side of the transverse cylinder 49 and is fixedly provided with a rotating block 412, anti-slip threads are arranged on the rotating block 412, and the other end of the inserted link 410 penetrates through the other side of the transverse cylinder 49 and the side surface of the buffer cylinder 41 and extends into the annular groove 48, so that the inserted link 410 can be conveniently rotated; two groups of two insertion rods 410 are respectively inserted into the annular grooves 48 on the side surfaces of the first insertion plate 46 and the second insertion plate 47, the insertion rods 410 and the annular grooves 48 are matched components, and the annular grooves 48 can be limited through the insertion rods 410.

In fig. 1 and 4: the anti-friction assembly 3 comprises a cylinder 31, an inner groove 37 is formed in the cylinder 31, a convex ring 36 is fixedly installed at the center of the bottom of the falling protector body 1, the convex ring 36 is connected with the center of the top of the cylinder 31 through threads, the steel wire rope 11 penetrates through the bottom of the falling protector body 1, the convex ring 36 and the inner groove 37, a plurality of rail blocks 32 are fixedly installed on the side surface of the inner groove 37 at equal intervals from top to bottom, a sliding groove 33 is formed in each rail block 32, and a plurality of balls 34 are arranged in each sliding groove 33, so that the steel wire rope 11 can be prevented from being rubbed with the falling protector body 1; the top of the cylinder 31 is symmetrically and fixedly provided with two lugs 35, and the lugs 35 are fixedly connected with the bottom of the falling protector main body 1 through bolts, so that the cylinder 31 can be fixed and limited.

The working principle of the invention is as follows: the plug spindle 21 is plugged in the hanging block 12, the rotating shaft 27 is rotatably connected with the connecting plate 24, the falling protector main body 1 can rotate, when the falling protector does not need to rotate, the rotating block 211 can be rotated to push the fixture block 212 upwards to enable the fixture block 212 to be inserted into the limiting groove 213, the top post 210 and the rotating shaft 27 are combined into a whole, the falling protector main body 1 cannot conveniently rotate, the falling protector main body 1 is rotated downwards to separate the limitation on the rotating shaft 27, the falling protector main body 1 can be conveniently used on site, the lantern ring 22 is sleeved on the plug spindle 21, the plug block 26 can limit the lantern ring 22, the plug block 26 is connected with the plug spindle 21 through bolts, the plug spindle 21 can be prevented from falling off, and the falling protector main body 1 can integrally rotate and can also be limited from rotating;

when the falling protector main body 1 is used at different heights, the buffering distances required to be provided are different, the rotating block 412 is rotated to drive the inserting rod 410 to rotate, the circular block 411 is in threaded connection with the transverse cylinder 49, so that the inserting rod 410 can be inserted into the annular groove 48, when the inserting rod 410 is inserted into the annular groove 48 on the first inserting plate 46, the uppermost spring 45 is subjected to force buffering, after the buffering cylinder 41 is inserted into the annular groove 48 on the side surface of the second inserting plate 47, the two springs 45 are subjected to force buffering, and after the inserting rod 410 is not inserted into the annular groove 48, the three springs 45 realize buffering and can be adjusted according to different heights;

the convex ring 36 is in threaded connection with the cylinder 31, the convex block 35 and the falling protector main body 1 are fixed and limited through bolts, the sliding groove 33 is formed in the track block 32, the plurality of balls 34 are uniformly arranged in the sliding groove 33, abrasion to the steel wire rope 11 cannot be caused, the safety coefficient can be improved, friction can be reduced, and the using smoothness is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The falling protector capable of adjusting the buffer distance according to the falling height comprises a falling protector main body (1) and is characterized in that a steel wire rope (11) is arranged inside the falling protector main body (1), a hanging block (12) is arranged at the top of the falling protector main body (1), a rotating assembly (2) is mounted on the hanging block (12), an anti-friction assembly (3) is fixedly mounted at the bottom of the falling protector main body (1), and a buffer assembly (4) is mounted at the bottom end of the steel wire rope (11);

the rotating assembly (2) comprises an inserting shaft (21), the inserting shaft (21) is inserted in the hanging block (12) in a sliding and inserting mode, two notches (25) are symmetrically formed in two ends of the hanging block (12), two lantern rings (22) are further sleeved on the inserting shaft (21), the lantern rings (22) are located on two sides of the hanging block (12), vertical rods (23) are fixedly installed on the tops of the two lantern rings (22), a connecting plate (24) is fixedly installed on the top ends of the two vertical rods (23) together, a rotating shaft (27) is inserted in the connecting plate (24) in a sliding and inserting mode, a first hanging ring (28) is fixedly installed on the top end of the rotating shaft (27), the bottom of the rotating shaft (27) extends to a position between the two vertical rods (23) and is fixedly provided with a limiting plate (29), the inserting shaft (21) is inserted with two inserting blocks (26), one end of each inserting block (26) penetrates through the inserting shaft (21) and is provided with a nut through threads, each inserting block (26) is fixedly connected with the inserting shaft (21) through a bolt, the top of each hanging block (12) is fixedly provided with a top column (210), the top of each top column (210) is sleeved with a clamping block (212), the side surface of each top column (210) is provided with a rotating block (211) through threads, the top of each rotating block (211) is in contact with the bottom of the clamping block (212), and the bottom of the limiting plate (29) is provided with a limiting groove (213), the top of the clamping block (212) is inserted in the limiting groove (213);

buffer unit (4) include buffer cylinder (41), wire rope (11) are pegged graft in buffer cylinder (41), and the bottom fixed mounting of buffer cylinder (41) has stopper (42), from the top down slidable mounting has plectane (43) in proper order in buffer cylinder (41), first picture peg (46) and second picture peg (47), between plectane (43) and first picture peg (46), between first picture peg (46) and second picture peg (47), all be provided with spring (45) between the bottom inner wall of second picture peg (47) and buffer cylinder (41), ring channel (48) have all been seted up to the side of plectane (46) and second picture peg (47), the bottom central authorities fixed mounting of plectane (43) has connection rope (44), first picture peg (46) is run through to connection rope (44) bottom, second picture peg (47) and three spring (45) and extend to the outside of buffer cylinder (41), and the bottom of connection rope (44) still fixed mounting has second rings (413).

2. The fall arrester of claim 1 wherein the top of the top pillar (210) is a regular quadrangular prism, the latch (212) is a regular quadrangular prism, the groove at the top of the latch (212) is a regular quadrangular prism, the limiting groove (213) is a regular quadrangular prism, the top pillar (210) and the latch (212) are mating members, and the latch (212) and the limiting groove (213) are mating members.

3. The fall arrester capable of adjusting the buffer distance according to the falling height as claimed in claim 1, wherein one end of the insert block (26) is a cylinder, the middle part of the insert block (26) is a quadrangular prism, the other end of the insert block (26) is a regular quadrangular prism, one end of the insert block (26) which is arranged as a regular quadrangular prism is in contact with the notch (25), and the middle part of the insert block (26) is arranged in the insert shaft (21).

4. The falling protector with the buffering distance adjustable according to the falling height as claimed in claim 1, wherein two sets of transverse cylinders (49) are fixedly mounted on the side surface of the buffer cylinder (41), two transverse cylinders (49) are arranged in each set of transverse cylinders (49), the two transverse cylinders (49) are symmetrically and fixedly mounted on the side surface of the buffer cylinder (41), an insertion rod (410) is inserted into each transverse cylinder (49), a circular block (411) is fixedly mounted on the side surface of each insertion rod (410), the circular block (411) is arranged inside each transverse cylinder (49), and the side surface of each circular block (411) is connected with the inner wall of each transverse cylinder (49) through a thread.

5. The fall arrester of claim 4, wherein one end of the inserted rod (410) penetrates one side of the transverse cylinder (49) and is fixedly provided with a rotating block (412), the rotating block (412) is provided with anti-skid threads, and the other end of the inserted rod (410) penetrates the other side of the transverse cylinder (49) and the side face of the buffer cylinder (41) and extends into the annular groove (48).

6. The falling protector with the buffering distance adjustable according to the falling height as claimed in claim 5, characterized in that two groups of two insertion rods (410) are respectively inserted into the annular grooves (48) on the side surfaces of the first insertion plate (46) and the second insertion plate (47), and the insertion rods (410) and the annular grooves (48) are matched components.

7. The fall arrester capable of adjusting the buffer distance according to the falling height as claimed in claim 1, wherein the anti-friction assembly (3) comprises a cylinder (31), an inner groove (37) is formed in the cylinder (31), a convex ring (36) is fixedly mounted at the center of the bottom of the fall arrester body (1), the convex ring (36) is connected with the center of the top of the cylinder (31) through a screw thread, the steel wire rope (11) penetrates through the bottom of the fall arrester body (1), the convex ring (36) and the inner groove (37), a plurality of rail blocks (32) are fixedly mounted on the side surface of the inner groove (37) at equal intervals from top to bottom, a sliding groove (33) is formed in each rail block (32), and a plurality of balls (34) are arranged in each sliding groove (33).

8. The fall arrester with adjustable damping distance according to the falling height as claimed in claim 7, characterized in that two lugs (35) are symmetrically and fixedly mounted on the top of the cylinder (31), and the lugs (35) are fixedly connected with the bottom of the fall arrester body (1) through bolts.