CN113622812A

CN113622812A - Cat ladder cohesion device and safe cat ladder

Info

Publication number: CN113622812A
Application number: CN202111033240.8A
Authority: CN
Inventors: 黄永丰; 温才权
Original assignee: Wuzhou Bureau Csg Ehv Power Transimission Co
Current assignee: Wuzhou Bureau Csg Ehv Power Transimission Co
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-09

Abstract

The invention discloses a crawling ladder holding device and a safe crawling ladder. The holding clamp is used for clamping the cylindrical equipment; the control device is used for driving the holding clamp to clamp or release; the centre gripping mouth size adjustable of fixation clamp, the fixation clamp is used for locking in the violently stepping on of cat ladder, embraces the clamp and connects in the fixation clamp. The fixation clamp can be locked in the violently step on of cat ladder to guarantee to embrace to press from both sides and can stabilize and connect in the cat ladder, embrace to press from both sides and pass through fixation clamp fixed connection on the cat ladder, avoid the load direct action of cat ladder transmission to embrace to press from both sides, improve and embrace and press from both sides the force stability. Embrace and press from both sides tightly in cylindricality equipment, and through fixation clamp and cat ladder fastening connection to realize that the cat ladder can fastening connection in cylindricality equipment, avoid taking place to slide and overturn, and embrace and press from both sides non-deformable, simple structure is reasonable, the simple operation. The safety ladder stand comprises a ladder stand holding device and a ladder stand body, and can be locked on the cylindrical equipment, and the fastening performance is good.

Description

Cat ladder cohesion device and safe cat ladder

Technical Field

The invention relates to the technical field of ladder climbing equipment, in particular to a ladder climbing holding device and a safe ladder climbing device.

Background

The equipment is generally the cylindricality in the transformer substation, and the maintenance personal is generally leaned on the cylindricality equipment with the cat ladder operation, only has a strong point on the equipment, and the cat ladder is very unstable, sideslips or turns on one's side easily, brings very big potential safety hazard for the operation personnel. Traditional safe cat ladder is provided with at the one end of cat ladder usually and embraces the clamp, outside the cylindricality equipment was located through embracing the clamp cover, should embrace the one end fixed connection that presss from both sides the cat ladder in the one end of cylindricality equipment, because cat ladder self gravity and volume are great, should embrace the restriction effect that presss from both sides and can not guarantee the vertical slip of slide, and embrace to press from both sides because the load of cat ladder transmission is atress deformation easily to influence follow-up armful clamp and normally open or lock.

Disclosure of Invention

Therefore, a crawling ladder holding device and a safe crawling ladder are needed to be provided, so that the clamping and the crawling ladder can be tightly connected, the clamping and the columnar equipment are stable in fastening performance, and the operation is simple and convenient.

The specific technical scheme is as follows:

on one hand, the crawling ladder holding device comprises a holding clamp, a control device and a fixing clamp, wherein the holding clamp is used for clamping cylindrical equipment; the control device is used for driving the holding clamp to clamp or release; the size of a clamping opening of the fixing clamp is adjustable, the fixing clamp is used for being locked on a cross pedal of the crawling ladder, and the holding clamp is connected to the fixing clamp.

Above-mentioned cat ladder cohesion device is when using, adjusts earlier the opening size of fixation clamp for this fixation clamp can lock in the violently step on of cat ladder, in order to guarantee to embrace to press from both sides and can stabilize and connect in the cat ladder, embrace press from both sides through fixation clamp fixed connection in on the cat ladder, avoid the load direct action of cat ladder transmission to embrace to press from both sides, improve and embrace and press from both sides the force stability. The clamping device drives the clamping device to open and close, the clamping device is tightly clamped on the cylindrical equipment, and the clamping device is tightly connected with the crawling ladder through the fixing clamp, so that the crawling ladder can be tightly connected with the cylindrical equipment, slippage and overturning are avoided, the clamping device is not prone to deformation, the structure is simple and reasonable, and the operation is convenient.

The technical solution is further explained below:

in one embodiment, the control device comprises a control wire, a control handle and a braking member, the braking member is connected to the clasping clamp, the control wire is connected between the control handle and the braking member, and the control handle is used for driving the control wire to be tensioned or retracted so as to drive the braking member to clamp or release the clasping clamp. Through setting up control line connection control handle and arrester for this control handle can realize the interval setting with the arrester, thereby sets up the control handle in the optional position of cat ladder, and this operation personnel of being convenient for embrace the locking of pressing from both sides before the climbing, and simple structure is reasonable, and it is convenient to use.

In one embodiment, the brake member includes a first brake block and a second brake block, the clasping includes a first half clasp and a second half clasp, the first half clasp is connected to the first brake block, the second half clasp is connected to the second brake block, the first half clasp and the second half clasp are relatively movable, the control line is connected to the second brake block, and the control line drives the second half clasp to clamp or release relative to the first half clasp by driving the second brake block to move towards or away from the first brake block. Through with the braking piece with embrace the clamp components of a whole that can function independently setting, be convenient for will embrace the clamp and assemble in this braking piece, through control second brake block realize embracing clamp press from both sides tightly with loosen, simple structure is reasonable, the equipment is convenient fast.

In one embodiment, the ladder gripping device further comprises a resilient member connected between the first and second brake pads. Through setting up the elastic component makes when this control line of controlling means drive is loosened, and the elastic restoring force of this elastic component can order about this second brake block and keep away from first brake block to realize this embracing and press from both sides quick release, mechanics stable in structure is reasonable, embraces that presss from both sides open and shut effectually.

In one embodiment, the ladder stand enclasping device further comprises an adjusting seat, the fixing clamp comprises an upper fixing claw and a lower fixing claw, the upper fixing claw and the lower fixing claw are connected to the adjusting seat and are arranged oppositely, and the lower fixing claw and the upper fixing claw can move relatively. This fixed upper jaw joint is violently stepped on in the upper strata, and through adjusting this regulation seat and making this fixed lower jaw joint violently step on in this and the upper strata adjacent lower floor and violently step on to realize the locking of this fixation clamp, this fixed clamp is tight solid stable performance, and locking effect is good.

In one embodiment, the adjusting seat comprises a supporting rod, a screw rod and a fixing plate, the supporting rod is fixedly connected between the fixing plate and the fixed upper jaw, the screw rod is rotatably connected between the fixing plate and the fixed upper jaw, the fixed lower jaw is slidably connected to the supporting rod and is in threaded fit connection with the screw rod, the supporting rod is used for limiting the rotational freedom degree of the fixed lower jaw, and the screw rod is used for driving the fixed lower jaw to move along the axial direction of the screw rod. Because the fixed lower claw is connected with the support rod in a sliding way and is in threaded fit connection with the screw rod, when the screw rod is rotated, the fixed lower claw can only move along the axial direction of the screw rod under the rotation limitation of the support rod, so that the fixed lower claw can approach or leave towards the fixed upper claw to adapt to the fastening connection of the transverse pedals in different ladders.

In one embodiment, the adjusting base further comprises an adjusting handle, the adjusting handle is connected with the screw rod, and the adjusting handle is used for driving the screw rod to rotate. The screw rod is rotated by rotating the adjusting handle, so that the fixed lower claw is driven to move towards the direction close to or far away from the fixed upper claw, and the assembly of the crawling ladder holding device is facilitated.

On the other hand, this application still provides a safe cat ladder, including the cat ladder cohesion device of above-mentioned arbitrary embodiment, still include the cat ladder body, the cat ladder body is including violently stepping on, fixation clamp fixed connection in violently stepping on.

This safe cat ladder is through setting up this cat ladder and hug closely the device and make this safe cat ladder can lock in cylindricality equipment to restriction this safe cat ladder's rotation degree of freedom and translation degree of freedom, fastening performance is good. This cat ladder cohesion device sets up with cat ladder body components of a whole that can function independently, embraces and presss from both sides through fixation clamp fixed connection in cat ladder body, avoids the load direct action of cat ladder body transmission to embrace and press from both sides, improves and embraces and press from both sides force stability to improve the job stabilization nature of this safe cat ladder.

In one embodiment, the safety ladder stand further comprises a falling protector, the ladder stand body further comprises a vertical rod, the falling protector is connected to the vertical rod, and the falling protector is used for supporting and protecting the falling of an operator. Through setting up this safety hook for this operation personnel can indirectly lock in this safety hook, improve the operation security.

In one embodiment, the safety ladder further comprises a guide rail, the guide rail is arranged on the vertical rod, and the falling protector is connected to the vertical rod in a sliding mode through the guide rail. This safety hook can slide on the guide rail, when the operation personnel scrambles, can remove this safety hook simultaneously to make the height and the operation personnel of safety hook be located same level, if the operation personnel fall can lock in the current height of climbing, avoid because the safety hook leads to the operation personnel tenesmus distance great far away with the operation personnel, improve the operation security.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.

FIG. 1 is a schematic overall structure diagram of a safety ladder according to an embodiment;

fig. 2 is a schematic overall structure diagram of the ladder stand enclasping device according to the embodiment.

Description of reference numerals:

10. the ladder stand clasping device; 100. clamping; 110. a first half clamp; 120. a second half clamp; 200. a control device; 210. a control line; 220. a control handle; 222. a fixed seat; 224. rotating the rod; 226. a release button; 230. a stopper; 232. a first brake pad; 234. a second brake pad; 310. an adjusting seat; 312. a support bar; 314. a screw rod; 316. a fixing plate; 318. adjusting the handle; 320. a fixing clip; 322. fixing the upper claw; 324. fixing the lower claw; 400. an elastic member;

20. a safety ladder stand; 500. a ladder body; 510. transversely stepping; 520. erecting a rod; 600. a safety catch; 700. a guide rail.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to figure 1, one embodiment of a safety ladder 20 comprises a ladder clasping device 10 and a ladder body 500. the ladder body 500 comprises a rung 510 and a retaining clip 320 fixedly attached to the rung 510. The ladder gripping device 10 comprises a gripping clamp 100, a control device 200 and a fixing clamp 320.

The safety ladder stand 20 can be locked on a columnar device through the ladder stand enclasping device 10, so that the rotation freedom degree and the translation freedom degree of the safety ladder stand 20 are limited, and the fastening performance is good. This cat ladder cohesion device 10 sets up with cat ladder body 500 components of a whole that can function independently, embraces and presss from both sides 100 through 320 fixed connection in cat ladder body 500 of fixation clamp, avoids the load direct action of cat ladder body 500 transmission to embrace and press from both sides 100, improves and embraces and press from both sides 100 force stability to improve this safe cat ladder 20's job stabilization nature.

Referring to fig. 1, in some embodiments, the safety ladder 20 further includes a falling protector 600, the ladder body 500 further includes a vertical rod 520, the falling protector 600 is connected to the vertical rod 520, and the falling protector 600 is used for supporting and protecting a worker during falling. Through setting up this safety hook 600 for this operation personnel can indirectly lock in this safety hook 600, improve the operation security.

Referring to fig. 1, in some embodiments, the safety ladder 20 further includes a guide rail disposed on the upright 520, and the fall arrester 600 is slidably connected to the upright 520 through the guide rail. This safety hook 600 can slide on the guide rail, when the operation personnel scrambles, can remove this safety hook 600 simultaneously to make this safety hook 600 highly be located same level with the operation personnel, if the operation personnel falls and to lock in the current climbing height, avoid because safety hook 600 leads to the operation personnel distance far away that the whereabouts distance is great with the operation personnel, improves the operation security.

Specifically, the worker is connected to the safety hook 600 through a safety rope.

Referring to fig. 2, specifically, the clamp 100 is used for clamping a cylindrical device; the control device 200 is used for driving the holding clamp 100 to clamp or release; the size of the clamping opening of the fixing clamp 320 is adjustable, the fixing clamp 320 is used for being locked on the cross pedal 510 of the ladder stand, and the holding clamp 100 is connected to the fixing clamp 320.

Specifically, the clamp 100 is an arc clamp, which facilitates clamping the clamp 100 with the columnar device, increases the contact area between the clamp 100 and the columnar device, and has good clamping performance.

Above-mentioned cat ladder cohesion device 10 is when using, adjusts the opening size of fixation clamp 320 earlier for this fixation clamp 320 can lock in the violently step 510 of cat ladder, in order to guarantee to embrace and press from both sides 100 and can stabilize and connect in the cat ladder, embrace to press from both sides 100 through fixation clamp 320 fixed connection on the cat ladder, avoid the load direct action of cat ladder transmission to embrace and press from both sides 100, improve and embrace and press from both sides 100 stress stability. Then, the control device 200 drives the clasping clamp 100 to open and close, the clasping clamp 100 is tightly clamped on the cylindrical equipment, and the clasping clamp 100 is tightly connected with the crawling ladder through the fixing clamp 320, so that the crawling ladder can be tightly connected with the cylindrical equipment, slippage and overturning are avoided, the clasping clamp 100 is not prone to deformation, and the crawling clamp is simple and reasonable in structure and convenient to operate.

Referring to fig. 2, in some embodiments, the control device 200 includes a control wire 210, a control knob 220 and a stopper 230, the stopper 230 is connected to the clasping clamp 100, the control wire 210 is connected between the control knob 220 and the stopper 230, and the control knob 220 is used for driving the control wire 210 to be tightened or retracted to drive the stopper 230 to clamp or release the clasping clamp 100. Control handle 220 and stopper 230 are connected through setting up control line 210 for this control handle 220 can realize the interval setting with stopper 230, thereby sets up control handle 220 in the optional position of cat ladder, and this operation personnel of being convenient for carry out the locking of embrace clamp 100 before the climbing, and simple structure is reasonable, and it is convenient to use.

Specifically, the control handle 220 includes a fixing seat 222, a rotating rod 224 and a release button 226, the rotating rod 224 is rotatably connected to the fixing seat 222, the control line 210 is connected to the rotating rod 224, the rotating rod 224 can rotate relative to the fixing seat 222 to tighten the control line 210, the release button 226 is disposed on the rotating rod 224, and the release button 226 is used for releasing the control line 210, so as to release the clasping clamp 100.

Referring to fig. 2, in some embodiments, the brake member 230 includes a first brake shoe 232 and a second brake shoe 234, the clasping clamp 100 includes a first half clamp 110 and a second half clamp 120, the first half clamp 110 is connected to the first brake shoe 232, the second half clamp 120 is connected to the second brake shoe 234, the first half clamp 110 and the second half clamp 120 are movable relative to each other, the control wire 210 is connected to the second brake shoe 234, and the control wire 210 drives the second half clamp 120 to clamp or release the first half clamp 110 by driving the second brake shoe 234 to move toward or away from the first brake shoe 232. The brake part 230 and the holding clamp 100 are arranged separately, so that the holding clamp 100 can be conveniently assembled on the brake part 230, and the second brake block 234 is controlled to clamp and release the holding clamp 100, so that the structure is simple and reasonable, and the assembly is quick and convenient.

Referring to fig. 2, in some embodiments, the ladder gripping device 10 further comprises a resilient member 400, wherein the resilient member 400 is connected between the first brake shoe 232 and the second brake shoe 234. Through the arrangement of the elastic member 400, when the control device 200 drives the control line 210 to release the control line, the elastic restoring force of the elastic member 400 drives the second brake block 234 to be away from the first brake block 232, so that the clasping clamp 100 can be released quickly, the mechanical structure is stable and reasonable, and the opening and closing effect of the clasping clamp 100 is good.

Specifically, the elastic member 400 is a spring, the first brake block 232 and the second brake block 234 are both fixedly connected above the fixed upper jaw 322, one end of the first brake block 232 is connected with one end of the second brake block 234 through the elastic member 400, the other end of the first brake block 232 and the other end of the second brake block 234 are respectively fixedly connected with the first half clamp 110 and the second half clamp 120, the first half clamp 110 and the second half clamp 120 enclose to form a groove, and the size of the groove can be adjusted by controlling the second brake block 234, so that the fixing clamp 320 can be locked to the columnar device.

Referring to fig. 2, in some embodiments, the ladder fastening device 10 further includes an adjusting seat 310, the fixing clip 320 includes an upper fixing jaw 322 and a lower fixing jaw 324, the upper fixing jaw 322 and the lower fixing jaw 324 are connected to the adjusting seat 310 and are disposed opposite to each other, and the lower fixing jaw 324 and the upper fixing jaw 322 are movable relative to each other. The fixed upper jaw 322 is clamped on the upper layer cross pedal 510, and the fixed lower jaw 324 is clamped on the lower layer cross pedal 510 adjacent to the upper layer cross pedal 510 by adjusting the adjusting seat 310, so that the fixing clamp 320 is locked, the fixing clamp 320 has stable fastening performance and a good locking effect.

Referring to fig. 2, in some embodiments, the adjusting base 310 includes a supporting rod 312, a screw 314 and a fixing plate 316, the supporting rod 312 is fixedly connected between the fixing plate 316 and a fixing upper jaw 322, the screw 314 is rotatably connected between the fixing plate 316 and the fixing upper jaw 322, a fixing lower jaw 324 is slidably connected to the supporting rod 312 and is in threaded fit with the screw 314, the supporting rod 312 is used for limiting the rotational freedom of the fixing lower jaw 324, and the screw 314 is used for driving the fixing lower jaw 324 to move along the axial direction of the screw 314. Because the fixed lower jaw 324 is slidably connected to the support rod 312 and is in threaded fit connection with the lead screw 314, when the lead screw 314 is rotated, the fixed lower jaw 324 can only move along the axial direction of the lead screw 314 under the rotation limitation of the support rod 312, so that the fixed lower jaw 324 can move towards or away from the fixed upper jaw 322 to adapt to the fastening connection of the cross pedal 510 in different ladder stands.

Specifically, the fixed upper jaw 322 and the fixed lower jaw 324 have the same structure, and both include a diaphragm plate and two hook jaws, and the two hook jaws are respectively and fixedly connected to two ends of the diaphragm plate. After assembly, the hook of the upper fixed jaw 322 faces downward and the hook of the lower fixed jaw 324 faces upward. The lead screw 314 is rotatably connected with the diaphragm of the fixed upper jaw 322 through a bearing, and the support rod 312 is fixedly connected between the diaphragm of the fixed upper jaw 322 and the fixed plate 316 through a bolt.

Preferably, the number of the support rods 312 is two, two support rods 312, the fixed plate 316 and the diaphragm plate of the fixed upper jaw 322 enclose to form an annular frame, the screw rod 314 is disposed in the annular frame and is parallel to the support rods 312, two ends of the diaphragm plate of the fixed lower jaw 324 are provided with through holes for the support rods 312 to penetrate through, the middle part of the diaphragm plate of the fixed lower jaw 324 is provided with threaded holes for the screw rod 314 to penetrate through, the structure of the adjusting seat 310 is reliable, when the screw rod 314 is rotated, two ends of the diaphragm plate of the fixed lower jaw 324 are both limited and rotated by the support rods 312, the fixed lower jaw 324 has a good transverse moving effect along the axial direction of the screw rod 314, and the transmission efficiency is high.

Referring to fig. 2, in some embodiments, the adjusting base 310 further includes an adjusting handle 318, the adjusting handle 318 is connected to the lead screw 314, and the adjusting handle 318 is used for driving the lead screw 314 to rotate. The adjustment handle 318 is rotated to rotate the lead screw 314, so as to drive the fixed lower jaw 324 to move towards or away from the fixed upper jaw 322, thereby facilitating the assembly of the ladder gripping device 10.

Specifically, one end of the screw rod 314 penetrates through the fixing plate 316 and is connected with the adjusting handle 318, the adjusting handle 318 is a connecting rod transversely arranged, one end of the adjusting handle 318 penetrates through the screw rod 314, the screw rod 314 is rotated by rotating the other end of the adjusting handle 318, the length of the adjusting handle 318 can be set as required, so that the length of the arm of force is increased, and the screw rod 314 is convenient to rotate. Preferably, the lead screw 314 can also be externally connected with a driving device, such as a motor, so as to realize the electric driving of the lead screw 314.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cat ladder cohesion device which characterized in that includes:

the holding clamp is used for clamping the cylindrical equipment;

the control device is used for driving the holding clamp to clamp or release; and

the fixing clamp is used for locking the cross pedal of the ladder stand, and the holding clamp is connected to the fixing clamp.

2. The ladder stand enclasping device according to claim 1, wherein the control device comprises a control wire, a control handle and a brake, the brake is connected to the enclasping clamp, the control wire is connected between the control handle and the brake, and the control handle is used for driving the control wire to be tensioned or retracted so as to drive the brake to clamp or release the enclasping clamp.

3. The ladder stand clasping device as claimed in claim 2, wherein the brake member comprises a first brake block and a second brake block, the clasping means comprises a first half-clip and a second half-clip, the first half-clip is connected to the first brake block, the second half-clip is connected to the second brake block, the first half-clip and the second half-clip are relatively movable, the control wire is connected to the second brake block, and the control wire is operable to move the second brake block in a direction towards or away from the first brake block so as to clamp or release the second half-clip relative to the first half-clip.

4. The ladder gripping device of claim 3, further comprising a resilient member connected between the first and second brake pads.

5. The ladder stand enclasping device according to any one of claims 1 to 4, further comprising an adjusting seat, wherein the fixing clamp comprises an upper fixing claw and a lower fixing claw, the upper fixing claw and the lower fixing claw are connected to the adjusting seat and are arranged oppositely, and the lower fixing claw and the upper fixing claw can move relatively.

6. The ladder stand enclasping device according to claim 5, wherein the adjusting seat comprises a supporting rod, a screw rod and a fixing plate, the supporting rod is fixedly connected between the fixing plate and the fixed upper jaw, the screw rod is rotatably connected between the fixing plate and the fixed upper jaw, the fixed lower jaw is slidably connected to the supporting rod and is in threaded fit connection with the screw rod, the supporting rod is used for limiting the rotational freedom degree of the fixed lower jaw, and the screw rod is used for driving the fixed lower jaw to move axially along the screw rod.

7. The ladder stand enclasping device according to claim 6, wherein the adjusting seat further comprises an adjusting handle, the adjusting handle is connected with the screw rod, and the adjusting handle is used for driving the screw rod to rotate.

8. A safety ladder comprising a ladder gripping device according to any one of claims 1 to 7 and a ladder body including a rung, the mounting clip being fixedly attached to the rung.

9. The safety ladder stand of claim 8, further comprising a fall arrester, wherein the ladder stand body further comprises a vertical rod, the fall arrester is connected to the vertical rod, and the fall arrester is used for supporting and protecting the falling worker.

10. The safety ladder of claim 9 further comprising a guide rail disposed on the upright, the fall arrestor being slidably connected to the upright via the guide rail.