CN108245803B

CN108245803B - Ladder falling-preventing safety protection tool

Info

Publication number: CN108245803B
Application number: CN201810206766.3A
Authority: CN
Inventors: 蒋传东
Original assignee: Yanggu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Yanggu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2018-03-14
Filing date: 2018-03-14
Publication date: 2023-05-23
Anticipated expiration: 2038-03-14
Also published as: CN108245803A

Abstract

The invention discloses a ladder stand anti-falling safety protection tool, which belongs to the technical field of high-altitude operation protection, and structurally comprises a soft belt, wherein hand hooks are symmetrically arranged at two ends of the soft belt, and the tail ends of the hand hooks are hooks; the soft belt is provided with a clamping plate on one side corresponding to the opening of the hook, a hanging plate is arranged on the other side of the soft belt, the clamping plate is corresponding to the hanging plate in position, the clamping plate, the soft belt and the hanging plate are fixedly connected into a whole through a connecting piece, and a hanging ring is arranged in the middle of the hanging plate. The ladder stand anti-falling safety protection tool disclosed by the invention is matched with the self-adaptive safety belt, so that the problem that hands are taken off or fall caused by misoperation and the like when climbing various buildings, structures, foot nails of power equipment and facilities and the ladder stand can be effectively avoided.

Description

Ladder falling-preventing safety protection tool

Technical Field

The invention belongs to the technical field of aerial work protection, and particularly relates to a ladder falling-preventing safety protection tool.

Background

The external wall or surface of various tall buildings, structures, equipment and facilities (such as angle steel towers for electric lines, round pipe towers, reinforced concrete electric poles, various communication towers, water towers, oil tanks, production equipment and buildings) and other tall objects are provided with foot nails, climbing ladders and similar devices (hereinafter referred to as climbing ladders) for facilitating climbing. When climbing the cat ladder, because no effective anti-falling facility is arranged, the worker can not find an effective protection tool, so that the process of climbing the cat ladder becomes dangerous, and the hand-off falling accident can occur at any time. The height of the climbing object determines that once the operator falls, the operator is inevitably seriously injured or killed.

In the tall object, part of the communication tower is provided with a ladder stand outer protection net, but no measure for preventing the sliding down is provided. The electric iron tower with the length of 30 meters and more is provided with the safety slide way, but the potential drop hazard is only partially eliminated due to the huge investment and general effect. The electric iron tower below 30 meters still has no protective measures.

At present, the safety protection problem generated by climbing a ladder is a worldwide difficult problem, and no effective protection method and measures exist in the world and in the domestic. The problem is not fundamentally solved by the outer protective net of the communication tower and the safety slide way of the electric iron tower.

With the development of social economy and the improvement of material civilization, the above-mentioned tall and big objects are rapidly increasing. Taking an electric iron tower as an example, the iron tower possession of the national power grid company has increased rapidly in 2010. The cat ladder is the only path for climbing the iron tower to carry out on-tower construction or maintenance, and the number of climbing iron tower construction or maintenance personnel is more than 50 ten thousand per year. It is necessary to provide these personnel with a protective measure or method that prevents falling during climbing.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide the anti-falling safety protection tool for the crawling ladder, which can effectively prevent falling accidents caused by misoperation of operators when the operators climb the crawling ladder without any modification or addition of accessories to the building or the crawling ladder during use.

The technical scheme adopted for solving the technical problems is as follows:

the anti-falling safety protection tool for the cat ladder comprises a soft belt, wherein hand hooks are symmetrically arranged at two ends of the soft belt, and the tail ends of the hand hooks are hooks; the soft belt is provided with a clamping plate on one side corresponding to the opening of the hook, a hanging plate is arranged on the other side of the soft belt, the clamping plate is corresponding to the hanging plate in position, the clamping plate, the soft belt and the hanging plate are fixedly connected into a whole through a connecting piece, and a hanging ring is arranged in the middle of the hanging plate.

Further, the hand hook with the corresponding one side of link plate is provided with the hand guard, the hand guard sets up in the both sides edge of hand hook respectively, and the one end and the hand hook fixed connection of hand guard, the other end of hand guard sets up the hand guard area.

Further, at least one hand hook is provided with a locking structure capable of closing and opening the hook.

Further, the hand hooks at two ends of the soft belt are respectively provided with the locking structures, the two locking structures are connected through a linkage mechanism, and the linkage mechanism enables the two locking structures to be incapable of being opened at the same time.

Further, the linkage mechanism comprises a linkage adjusting rod, the linkage adjusting rod is a rod piece with a fixed clamping block in the middle, the fixed clamping blocks are symmetrically arranged on two sides of the linkage adjusting rod, springs are arranged on the fixed clamping blocks, the tail ends of the springs are connected with steel cables, and the tail ends of the steel cables are provided with adjusting bolts;

the adjusting bolt is clamped on the clamping block, the clamping block is positioned in a slide way on the hand hook, a first linkage shaft is arranged on the clamping block, a second linkage shaft is arranged on the locking structure, and the first linkage shaft and the second linkage shaft are connected through a linkage ring.

Further, one end of the clamping block is provided with a clamping head, the other end of the clamping block is provided with a linkage clamping groove, and two nuts of the adjusting bolt are respectively positioned at two sides of the linkage clamping groove, so that a screw rod of the adjusting bolt is clamped in the linkage clamping groove; and/or the steel cable is connected with the spring through a connecting tube; and/or the steel cable and the adjusting bolt are connected through a steel cable interface.

Further, the linkage adjusting rod is movably arranged in the shield, the shield is fixedly arranged on the band clamping plate, adjusting rod sliding grooves are formed in two sides of the shield, two ends of the linkage adjusting rod extend out of the shield through the adjusting rod sliding grooves, and the linkage adjusting rod can move in the adjusting rod sliding grooves along with the expansion and contraction of the spring.

Further, the sheath is sleeved on the outer side of the steel cable, sheath clamping grooves matched with the sheath clamping grooves are formed in the two ends of the sheath respectively, the sheath clamping grooves are respectively arranged on the hand hook and the band clamping plate, and mounting holes for mounting screws to pass through and sheath positioning holes for the end portions of the sheath to pass through are formed in the sheath clamping grooves.

Further, a shaft seat for installing a locking structure is arranged on the hand hook, and a first shaft hole is arranged on the shaft seat; the locking structure comprises a meniscus, the bottom of the back of the meniscus is provided with the second linkage shaft, the middle of the back of the meniscus is provided with a second shaft hole, and the first shaft hole is coaxially connected with the second shaft hole;

the anti-slip block is arranged between the second linkage shaft and the second shaft hole, spring pieces are arranged on two sides of the anti-slip block, rivet holes and protruding heads for installing spring piece rivets are arranged on the spring pieces, and the protruding heads can be matched with clamping heads on the clamping blocks to clamp the spring pieces.

Further, a lining plate is arranged on the inner side of the hook; and/or the tail end of the hook is provided with an outward bending.

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

1. according to the ladder stand anti-falling safety protection tool, the hanging ring can be connected with the hanging ring on the self-adaptive safety belt worn by a worker by adopting the universal hook, the hook of the hand hook part is hung on the transverse support of the ladder stand, even if accidental falling occurs, the hand hook cannot fall off, the maximum falling distance is the distance from the universal hook to the hand hook plus the allowance of the safety belt, the falling distance is greatly shortened, and the safety of the worker can be ensured no matter whether the ladder stand or the angle steel tower leg nail is adopted.

2. The ladder falling-preventing safety protection tool has the advantages that the main body is the soft belt, the size is small, the ladder falling-preventing safety protection tool is convenient to carry, no modification or addition of accessories to a building and the ladder is needed during use, the cost of the building and the ladder is not increased, the control of the working posture of workers is not affected, and the arrangement of components such as the hand guard, the hand guard belt and the like is very humanized and the use is convenient.

3. According to the ladder stand anti-falling safety protection tool, the locking structure is arranged on the hand hooks, so that at least one of the two hand hooks is arranged on the transverse support of the ladder stand in a closed state, the safety and reliability are further improved, and the user is protected safely.

4. According to the ladder stand anti-falling safety protection tool, the linkage mechanism is formed by the linkage adjusting rod, the spring, the steel rope and other parts, so that the locking structures of the two hand hooks are linked, the structure is simple, and the adjustment is convenient and labor-saving.

5. The anti-falling safety protection tool for the ladder stand comprises a locking structure, wherein the inner side of a hook is provided with a lining plate, the lining plate and the hook form good matching, the lining plate plays a role in protecting the hook, the slipping phenomenon of the hook is avoided, the strength of the hook is increased, and the safety of a device is enhanced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a hand hook portion according to a first embodiment of the present invention;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of a hand strap according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a hanging plate according to a first embodiment of the present invention;

FIG. 7 is a left side view of FIG. 6;

fig. 8 is a schematic structural view of a belt clamping plate according to a first embodiment of the present invention;

FIG. 9 is a schematic diagram of a second embodiment of the present invention;

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is a schematic structural diagram of a linkage mechanism in a second embodiment of the present invention;

FIG. 12 is a schematic view of a structure of a hook portion in a second embodiment of the present invention;

FIG. 13 is a left side view of FIG. 12;

FIG. 14 is a top view of FIG. 13;

FIG. 15 is a schematic structural diagram of a latch according to a second embodiment of the present invention;

FIG. 16 is a right side view of FIG. 15;

FIG. 17 is a bottom view of FIG. 15;

FIG. 18 is a schematic illustration of a meniscus configuration in accordance with a second embodiment of the present invention;

FIG. 19 is a bottom view of FIG. 18;

FIG. 20 is a right side view of FIG. 18;

FIG. 21 is a schematic view of a second embodiment of the invention after the meniscus has been assembled with a leaf spring;

FIG. 22 is a schematic diagram of a spring leaf in a second embodiment of the present invention;

FIG. 23 is a bottom view of FIG. 22;

fig. 24 is a schematic structural view of a belt clamping plate in a second embodiment of the present invention;

FIG. 25 is a schematic view of a shield according to a second embodiment of the present invention;

FIG. 26 is a bottom view of FIG. 25;

FIG. 27 is a section A-A of FIG. 25;

FIG. 28 is a schematic side view of a combination of a second hand hook and a sheath card slot according to an embodiment of the invention;

fig. 29 is a schematic diagram showing a front view of a combination of a hook and a clip groove of a sheath according to an embodiment of the present invention;

FIG. 30 is a schematic cross-sectional view of a two-stage grip plate and jacket clamping groove assembly according to an embodiment of the present invention;

figure 31 is a top view of figure 30,

FIG. 32 is a schematic view of a linkage ring according to an embodiment of the present invention;

FIG. 33 is a left side view of FIG. 32;

fig. 34 is a top view of fig. 33.

In the figure: the hand hook, 2 soft belts, 3 band clamping plates, 4 hanging plates, 5 hand protecting belts, 6 hanging hooks, 7 hand protecting plates, 8 hand protecting belt holes, 9 soft belt holes, 10 band clamping plate screw holes, 11 hanging rings, 12 hanging plate screw holes, 13 rivets, 14 seams, 15 bolts, 16 lining plates, 17 connecting shafts, 18 shaft seats, 19 second linkage shafts, 20 linkage clamping grooves, 21 sliding ways, 22 sheath clamping grooves, 23 fixing clamping blocks, 24 sheaths, 25 steel rope interfaces, 26 first linkage shafts, 27 semilunar plates, 28 linkage rings, 281 rings, 282 pulling plates, 29 clamping blocks, 30 shields, 31 spring pieces, 32 linkage adjusting rods, 33 adjusting bolts, 34 steel ropes, 35 splicing tubes, 36 springs, 37 square holes, 38 sheath clamping screw holes, 39 clamping heads, 40 first shaft holes, 41 second shaft holes, 42 rivet holes, 43 blocking blocks, 44 spring piece rivets, 45 sheath holes, 46 adjusting rod sliding grooves, 47 sheath positioning holes, 48 protruding heads.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Embodiment one:

as shown in fig. 1, the embodiment provides a ladder stand anti-falling safety protection tool, which comprises a soft belt 2, wherein two ends of the soft belt 2 are symmetrically provided with hand hooks 1, and the tail ends of the hand hooks 1 are hooks 6; the flexible belt 2 is provided with the strap board 3 with the corresponding one side of the opening of couple 6, and the opposite side of flexible belt 2 is provided with link plate 4, strap board 3 with the position of link plate 4 is corresponding, and strap board 3, flexible belt 2 and link plate 4 pass through connecting piece fixed connection as an organic whole, the middle part of link plate 4 is provided with link 11.

One side of the hand hook 1 corresponding to the hanging plate 4 is provided with a hand guard 7, as shown in fig. 2, 3 and 4, the hand guard 7 is respectively arranged at two side edges of the hand hook 1, one end of the hand guard 7 is fixedly connected with the hand hook 1, and the other end of the hand guard 7 is provided with a hand guard belt 5. In this embodiment, the structure of the hand protection belt 5 is shown in fig. 5, through holes are arranged on the belt body in parallel along the long axis direction, a positioning buckle is arranged at one end of the belt body, the structure can refer to the structure of the waistband, and the tightness of the hand protection belt 5 is adjusted through the cooperation of the positioning buckle and different through holes. In other embodiments, the hand strap 5 may be adjusted in other ways, such as: hidden buttons, buckles, strong magic tapes and the like.

The soft belt 2 is a flat belt, one end of the hand hook 1 connected with the soft belt 2 is provided with a soft belt hole 9 matched with the soft belt 2, and after the end part of the soft belt 2 passes through the soft belt hole 9, the soft belt 2 is fixed through a rivet 13 and a seam 14, so that the connection between the soft belt 2 and the hand hook 1 is realized.

As shown in fig. 6 and 7, the surface of the hanging plate 4 matched with the soft belt 2 is a plane, the other surface is provided with a hanging ring 11, and the edge of the hanging plate 4 is provided with a hanging plate screw hole 12 for installing the hanging plate 4; as shown in fig. 8, the clamping plate 3 is a flat plate, and the edge of the clamping plate 3 is provided with clamping plate screw holes 10 for installing the clamping plate 3. The hanging plate screw holes 12 and the clamping plate screw holes 10 are mutually corresponding, and the bolts 15 simultaneously penetrate through the hanging plate screw holes 12, the soft belt 2 and the clamping plate screw holes 10 to realize the fixed connection of the hanging plate 4, the clamping plate 3 and the soft belt 2. The clamping plate 3 is arranged, so that the connection strength is greatly increased, and the damage to the soft belt 2 caused by the bolt 15 under the action of external force is avoided.

When the self-adaptive safety belt is used, a worker wears the self-adaptive safety belt, the universal hooks are used for connecting the safety belt hanging rings with hanging rings 11 on the hanging plate 4, the hooks 6 of the two hand hooks 1 are hung on the cross braces of the crawling ladder, if accidental falling occurs, the hand hooks 1 cannot fall off, the maximum falling distance is the distance from the universal hooks to the hand hooks plus the allowance of the safety belt, the falling distance is greatly shortened, and the safety of the worker can be ensured no matter whether the crawling ladder or the angle steel tower nails are adopted.

Embodiment two:

as shown in fig. 9 and 10, in this embodiment, compared with the first embodiment, a locking structure and a linkage mechanism are added, so that safety is further improved, the two locking structures are respectively arranged on the hand hooks 1 at two ends of the soft belt 2, the two locking structures are connected through the linkage mechanism, the two locking structures cannot be opened at the same time by the linkage mechanism, and the whole structure is still symmetrically distributed from the hanging ring 11 to two sides, specifically as follows:

the structure of the linkage mechanism is shown in fig. 11, the linkage mechanism comprises a linkage adjusting rod 32, the linkage adjusting rod 32 is a rod piece with a fixed clamping block 23 arranged in the middle, the fixed clamping blocks 23 are symmetrically arranged on two sides of the linkage adjusting rod 32, springs 36 are arranged on the fixed clamping blocks 23, the tail ends of the springs 36 are connected with a steel cable 34 through connecting pipes 35, the tail ends of the steel cable 34 are provided with adjusting bolts 33, and the steel cable 34 and the adjusting bolts 33 are connected through steel cable interfaces 25.

As shown in fig. 9 and 10, the adjusting bolt 33 is clamped on the clamping block 29, the clamping block 29 is located in the slideway 21 on the hand hook 1, the clamping block 29 is provided with the first linkage shaft 26, the locking structure is provided with the second linkage shaft 19, and the first linkage shaft 26 and the second linkage shaft 19 are connected through the linkage ring 28. As shown in fig. 32, 33 and 34, the coupling ring 28 includes two oblong rings 281 connected by a pull plate 282, and the two oblong rings 281 correspond to both ends of the first coupling shaft 26 and the second coupling shaft 19, respectively.

The outer side of the steel cable 34 is sleeved with a sheath 24, the linkage mechanism is provided with a sheath 30, and the sheath 30 covers the linkage adjusting rod 32 and the spring 36 at the same time; the steel cable 34 is connected with the spring 36 through a connecting tube 35, and the steel cable 34 is connected with the adjusting bolt 33 through a steel cable interface 25. The linkage adjusting rod 32 is movably arranged in the shield 30, the shield 30 is fixedly arranged on the band clamping plate 3, two sides of the shield 30 are provided with adjusting rod sliding grooves 46, two ends of the linkage adjusting rod 32 extend out of the shield 30 through the adjusting rod sliding grooves 46, and the linkage adjusting rod 32 can move in the adjusting rod sliding grooves 46 along with the expansion and contraction of the spring 36.

In this embodiment, as shown in fig. 12, 13 and 14, compared with the first embodiment, the hook 6 of this embodiment has an outward bend at its end, so that it is more convenient for hanging on the cross brace of the ladder stand and also for matching with the locking structure. The hand hook 1 is provided with a shaft seat 18 for installing a locking structure, and the shaft seat 18 is provided with a first shaft hole 40; the hand hook 1 is provided with a slide way 21, and a clamping block 29 for installing an adjusting bolt 33 is arranged in the slide way 21. The hand hook 1 is further provided with a sheath clamping screw hole 38 for installing the sheath clamping groove 22, and the hand hook 1 and the sheath clamping groove 22 are combined to form a schematic diagram as shown in fig. 28 and 29, the sheath clamping groove 22 is provided with a sheath positioning hole 47 for the end part of the sheath 24 to pass through, and the sheath clamping groove 22 plays a role in positioning the sheath 24.

The first linkage shaft 26 is disposed on the clamping block 29, as shown in fig. 15, 16 and 17, the clamping block 29 is disposed in the slideway 21, the clamping head 39 of the clamping block 29 is used for cooperating with the locking structure, the linkage clamping groove 20 on the clamping block 29 is used for clamping the adjusting bolt 33, and two nuts of the adjusting bolt 33 are respectively disposed at two sides of the linkage clamping groove 20, so that the screw of the adjusting bolt 33 is clamped in the linkage clamping groove 20.

As shown in fig. 18, 19 and 20, the locking structure comprises a meniscus 27, wherein a second coupling shaft 19 is arranged at the bottom of the back surface of the meniscus 27, a second shaft hole 41 is arranged in the middle of the back surface of the meniscus 27, and the first shaft hole 40 and the second shaft hole 41 are coaxially connected through a connecting shaft 17; the blocking block 43 is disposed between the second coupling shaft 19 and the second shaft hole 41, the spring pieces 31 are disposed on two sides of the blocking block 43, and the structure after the spring pieces 31 are mounted in the locking structure is as shown in fig. 21, and the spring pieces 31 and the blocking block 43 are connected by the spring piece rivets 44.

As shown in fig. 22 and 23, the spring plate 31 is a flexible sheet, and the sheet is provided with a rivet hole 42 and a protruding head 48 for installing a spring plate rivet 44, and the protruding head 48 can be matched and clamped with the clamping head 39 on the clamping block 29.

The structure of the clamping plate 3 in this embodiment is shown in fig. 24, and compared with the clamping plate in the first embodiment, the clamping plate 3 in this embodiment has symmetrically added sheath clamping screw holes 38 for installing the sheath clamping grooves 22 at both ends, the structure and function of the sheath clamping grooves 22 have been described above, and the structure of the clamping plate 3 combined with the sheath clamping grooves 22 is shown in fig. 30 and 31.

As shown in fig. 25, 26 and 27, the structure of the shield 30 is that the middle part of the shield 30 protrudes to form a shield body, shield holes 45 for installing the shield 30 are provided on edges of both sides of the shield body, adjusting rod sliding grooves 46 are provided on side walls of both sides of the shield body, and both ends of the linkage adjusting rod 32 extend from the adjusting rod sliding grooves 46 and can move in the adjusting rod sliding grooves 46.

In this embodiment, the inner side of the hook 6 is provided with a lining plate 16. When in combined installation, the hanging plate 4 is arranged at the rear side of the soft belt 2, the center point of the hanging plate is aligned with the center point of the soft belt 2, and the hanging plate screw hole 12 in the middle of the hanging plate 4 is aligned with the horizontal center line of the soft belt 2; placing the clamping plate 3 on the front side of the soft belt 2, and aligning six clamping plate screw holes 10 with six hanging plate screw holes 12 of the hanging plate 4; two ends of the linkage adjusting rod 32 embedded with the spring 36 are penetrated into the adjusting rod chute 45 from the inner side of the shield 30 outwards, so that the shield 20 covers the spring 17, and two ends of the linkage adjusting rod 16 are exposed out of the adjusting rod chute 45; aligning six shield holes 45 on the shield 30 with six clamping plate screw holes 10 on the clamping plate 3, clamping the end heads of the shields 24 of the steel ropes 34 in the shield clamping grooves 22 on the clamping plate 3, screwing the six bolts 15 into the hanging plate screw holes 12 from front to back and screwing the bolts 15 into the hanging plate screw holes 12 from front to back in sequence of the shield 30, the clamping plate 3, the soft belt 2 and the hanging plate 4, and screwing the bolts 15 into nuts on the hanging plate 4 side; the upper end of the soft belt 2 is penetrated into the soft belt hole 9 of the hand hook 1 at the upper end upwards and forwards and folded back to be overlapped with the main body of the soft belt 2, and the end and the main body are fixed together by riveting and sewing 14 through rivets 13. The connection mode of the lower end head of the soft belt 2 and the hand hook at the lower end is identical with the connection mode.

Two lining plates 16 are fixed at the two ends of the inner side of the hook 6 of the hand hook 1 at the upper end by bolts, rivets or glue; inserting the back of the meniscus 27 into the middle of the shaft seat 18, aligning the second shaft hole 41 on the meniscus 27 with the first shaft hole 40 on the shaft seat 18, and inserting the connecting shaft 17 into the first shaft hole 40 and the second shaft hole 41; the upper end of a ring 281 of the linkage ring 28 is respectively hung at two ends of the second linkage shaft 19, a clamping block 29 is inserted into the slideway 21, and a clamping head 39 is upwards; the lower end of the middle ring 281 of the linkage ring 28 is respectively hung at two ends of the first linkage shaft 26; the upper end of the steel rope sheath 24 is clamped in the sheath clamping groove 22 of the hand hook 1 at the upper end; the adjusting bolt 33 is clamped in the linkage clamping groove 20, so that two nuts of the adjusting bolt 33 are respectively arranged on the upper side and the lower side of the linkage clamping groove 20 and are screwed. The combination and fixing mode of the hand hook at the lower end and other elements are identical to the combination and fixing mode.

In this embodiment, the two hand hooks are symmetrically provided with locking structures, in other embodiments, only one hand hook may be provided with a locking structure capable of closing and opening the hook, and the main part of the locking structure may be changed in specific shape except for the meniscus shape described in the embodiment, so that the hook may be closed.

When the self-adaptive safety belt is used, a worker wears the self-adaptive safety belt, the safety belt hanging ring is connected with the hanging ring 11 on the hanging plate 4 by using the universal hanging hook, and four fingers outside two thumbs respectively penetrate into the hand protection belts 5 of the two hand hooks 1 and hold the hanging hooks 6. The linkage adjusting rod 32 is adjusted to enable the meniscus 27 on the hand hook 1 to be upwards retracted and to be downwards hung on the transverse support of the cat ladder by the hand hook 1 with the meniscus 27 downwards hung, the arm is pulled upwards forcefully to enable the meniscus 27 to be upwards retracted and the hook 6 to be closed, the clamping block 29 slides upwards along the slideway 21 until the clamping head 39 is clamped into the convex heads 48 of the two spring pieces 31, and the cat ladder transverse support is locked in the hook 6. At this time, if the hand hook 1 hung on the ladder rung is to be taken down, it is necessary to hang the other hand hook 1 on the ladder rung and close the meniscus 27 with the hook 6. After the climbing of the ladder is finished and other safety measures are taken, the hand hook 1 hung on the transverse support of the ladder can be separated by adjusting the linkage adjusting rod 32.

According to the ladder stand anti-falling safety protection tool, the closed state of one hand hook and the meniscus can be kept through the linkage among the meniscus 27, the spring piece 31, the linkage ring 28, the clamping block 29, the steel cable 34, the spring 36, the steel cable 34, the clamping block 29, the linkage ring 28 and the meniscus 27.

The closed state of the hand hook 1 and the meniscus 27 is kept, so that the situation that the two hand hooks 1 leave the ladder stand transverse support simultaneously can be effectively avoided. Even if the hand is separated from the hand hook due to the hand separation force or other accidents, the hand hook 1 will not fall off, and the user will be suspended at high altitude through the cooperation among the hand hook 1, the soft belt 2, the hanging ring 11, the general hook, the safety rope hanging ring and the safety belt. The maximum falling distance is the distance from the universal hook to the hand hook plus the allowance of the safety belt.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Other technical features besides those described in the specification are known to those skilled in the art, and are not described herein in detail to highlight the innovative features of the present invention.

Claims

1. The ladder falling-preventing safety protection tool is characterized by comprising a soft belt, wherein hand hooks are symmetrically arranged at two ends of the soft belt, and the tail ends of the hand hooks are hooks; the flexible belt is provided with a clamping plate on one side corresponding to the opening of the hook, the other side of the flexible belt is provided with a hanging plate, the clamping plate is corresponding to the hanging plate in position, the clamping plate, the flexible belt and the hanging plate are fixedly connected into a whole through a connecting piece, the middle part of the hanging plate is provided with a hanging ring, the hand hooks at the two ends of the flexible belt are respectively provided with a locking structure capable of closing and opening the hook, the two locking structures are connected through a linkage mechanism, the linkage mechanism enables the two locking structures to be incapable of being opened simultaneously, the linkage mechanism comprises a linkage adjusting rod, the linkage adjusting rod is a rod piece with a fixed clamping block in the middle part, the fixed clamping block is symmetrically arranged on two sides of the linkage adjusting rod, a spring is arranged on the fixed clamping block, the tail end of the spring is connected with a steel cable, the tail end of the steel cable is provided with an adjusting bolt, the adjusting bolt is clamped on the clamping block, the clamping block is positioned in a slide way on the hand hook, the clamping block is provided with a first linkage shaft, the locking structure is provided with a second linkage shaft, the first linkage mechanism is connected with the second linkage shaft through the connecting ring, the two linkage adjusting bolt is connected with the two linkage shafts through the connecting rings, the two linkage shafts are respectively provided with a linkage sleeve, the two linkage adjusting bolt seat are respectively arranged on two sides, and are respectively provided with a linkage nut, and are respectively provided with a linkage adjusting bolt, and are respectively provided with a linkage nut; the locking structure comprises a meniscus, the bottom of the back of the meniscus is provided with the second linkage shaft, the middle of the back of the meniscus is provided with a second shaft hole, and the first shaft hole is coaxially connected with the second shaft hole; the anti-slip block is arranged between the second linkage shaft and the second shaft hole, spring pieces are arranged on two sides of the anti-slip block, rivet holes and protruding heads for installing spring piece rivets are arranged on the spring pieces, and the protruding heads can be matched with clamping heads on the clamping blocks to clamp the spring pieces.

2. The ladder stand anti-falling safety protection tool according to claim 1, wherein a hand guard is arranged on one side of the hand hook corresponding to the hanging plate, the hand guards are respectively arranged at two side edges of the hand hook, one end of each hand guard is fixedly connected with the hand hook, and a hand guard belt is arranged on the other end of each hand guard.

3. The ladder stand fall protection safety tool of claim 1, wherein the steel cable is connected with the spring through a connecting tube; and/or the steel cable and the adjusting bolt are connected through a steel cable interface.

4. The ladder stand anti-falling safety protection tool according to claim 1, wherein adjusting rod sliding grooves are formed in two sides of the shield, two ends of the linkage adjusting rod extend out of the shield through the adjusting rod sliding grooves, and the linkage adjusting rod can move in the adjusting rod sliding grooves along with the expansion and contraction of the springs.

5. The ladder stand anti-falling safety protection tool according to claim 1, wherein a sheath is sleeved on the outer side of the steel cable, sheath clamping grooves matched with the sheath clamping grooves are respectively formed in the two ends of the sheath, the sheath clamping grooves are respectively arranged on the hand hook and the clamping plate, and mounting holes for mounting screws to pass through and sheath positioning holes for the ends of the sheath to pass through are formed in the sheath clamping grooves.

6. The ladder stand fall protection safety tool according to any one of claims 1-5, wherein a lining plate is arranged on the inner side of the hook; and/or the tail end of the hook is provided with an outward bending.