CN116573556A

CN116573556A - Tower crane cat ladder anti-falling device

Info

Publication number: CN116573556A
Application number: CN202310483690.XA
Authority: CN
Inventors: 严波; 陈源; 王海舰; 李家伟; 黄庆华; 丁炜程; 黄大湾; 梁思华; 黄翱鸿; 黄泳晔
Original assignee: Guangxi Special Equipment Inspection and Research Institute
Current assignee: Guangxi Special Equipment Inspection and Research Institute
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-08-11

Abstract

The application relates to the technical field of tower crane safety equipment, and particularly discloses a tower crane cat ladder anti-falling device, which comprises: the safety fixing braces are sleeved on a human body and used for protecting staff; the sliding rail is arranged through the upright post of the crawling ladder and is divided into two sides, and a rack and a clamping block are arranged on one side of the sliding rail in parallel in the vertical direction; the combined wheel is matched and arranged on the sliding rail, the combined wheel comprises a gear and a clamping wheel connected to the side edge of the gear, the center position of the gear is rotationally connected with a connecting rod, the connecting rod is detachably connected with a fixing belt, the other end of the fixing belt is connected with one side of the safety fixing braces, a plurality of clamping blocks are arranged in the clamping wheel, when a worker steps on the high-speed falling, the gear drives the clamping wheel to rotate at a high speed, the clamping blocks are thrown out under the action of centrifugal force to clamp the clamping blocks, falling is avoided, and the safety catch does not need to be frequently detached to climb upwards again, so that time and labor are saved.

Description

Tower crane cat ladder anti-falling device

Technical Field

The application belongs to the technical field of tower crane safety equipment, and particularly relates to a tower crane cat ladder anti-falling device.

Background

The tower crane is the most commonly used hoisting equipment on the building site, the height of the tower crane is higher, the tower crane operators are operated at the high altitude, uncertain factors such as stepping, grabbing and sliding exist, the operators are easy to fall accidentally, and the risk coefficient is higher. The most commonly used anti-falling safety auxiliary device is an overhead operation safety belt, and mainly comprises a belt, a rope and metal accessories, and the specific application mode is that a tower crane operator wears the safety belt and ties a safety buckle on the safety belt on a boarding cross rod so as to climb up and down a tower crane. The tower crane operating personnel adopt this kind of mode to go up and down the tower machine, therefore the driver rises a section of less distance just needs to pull down again and binds once protective belt, and not only the operation is loaded down with trivial details, does not have the guarantee to the self safety of driver yet moreover.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present application and is not necessarily prior art to the present application and is not intended to be used as an aid in the evaluation of the novelty and creativity of the present application in the event that no clear evidence indicates that such is already disclosed at the date of filing of the present application.

Disclosure of Invention

The application aims to provide a tower crane cat ladder anti-falling device, so that the defects of the background technology are overcome.

In order to achieve the above purpose, the application adopts the following technical scheme:

a tower crane ladder stand anti-falling device comprising:

the safety fixing braces are sleeved on a human body and used for protecting staff;

the sliding rail is arranged through the upright post of the crawling ladder and is divided into two sides, and a rack and a clamping block are arranged on one side of the sliding rail in parallel in the vertical direction;

the combined wheel is matched and arranged on the sliding rail, the combined wheel comprises a gear and a clamping wheel connected to the side edge of the gear, the center position of the gear is rotationally connected with a connecting rod, the connecting rod is detachably connected with a fixing belt, the other end of the fixing belt is connected with one side of the safety fixing braces, a plurality of clamping blocks are arranged in the clamping wheel, when a worker steps on the high-speed falling, the gear drives the clamping wheel to rotate at a high speed, and the clamping blocks are thrown out to clamp the clamping blocks under the action of centrifugal force, so that the falling is avoided.

Preferably, the cross beam of each ladder is sleeved with an anti-skid layer with a concave-convex surface.

Preferably, a plurality of clamping grooves are formed in the circumferential direction of the clamping wheel, and the clamping grooves are correspondingly clamped with the clamping blocks.

Preferably, a spring is connected between the bottom of the clamping groove and the bottom of the clamping block.

Preferably, the connecting rod is provided with an anti-slip cap.

Preferably, the safety fixing strap comprises a waist fixing strap and a leg fixing strap, and the binding strap is connected with the connection part of the waist fixing strap and the leg fixing strap.

Preferably, the left baffle and the right baffle are arranged on two sides of the sliding rail, a notch is formed by the left baffle and the right baffle, and the connecting rod extends out of the notch.

Preferably, 2-5 clamping blocks are arranged on the clamping wheel.

Preferably, the clamping blocks are vertically arranged on the side wall of the sliding rail in parallel at equal intervals.

Preferably, the distance between adjacent clamping blocks is larger than the size of the clamping block end head.

Compared with the prior art, the application has the following beneficial effects:

1. according to the application, the slide rails are arranged on the upright posts on the two sides of the cat ladder, and the rack, the clamping block, the gear and the clamping wheel are mutually matched in the slide rails, so that the safety buckle does not need to be frequently detached and then climbed upwards again along with the stable ascending of the fixing belt in the climbing process of staff, and time and labor are saved.

2. According to the application, when the stepping-down falling occurs, the clamping block is thrown out in time under the action of centrifugal force and is clamped in the clamping block, so that the falling of workers is prevented, and the safety of the workers is improved.

3. According to the application, the plurality of clamping blocks are arranged, so that one clamping block can be clamped on the clamping block, and the safety is improved.

Drawings

Fig. 1 is a schematic structural view of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a side view of a ladder stand.

Fig. 4 is a schematic view of the internal structure of the stand column of the ladder.

Fig. 5 is a schematic view of a side structure of the slide rail.

Fig. 6 is a schematic view of the combined wheel structure.

Fig. 7 is a schematic view of a gear structure.

Fig. 8 is a schematic view of the internal structure of the click wheel.

Fig. 9 is a schematic diagram of a tower crane structure.

The main reference numerals illustrate:

the safety fixing strap comprises a 1-safety fixing strap, a 2-upright post, a 3-sliding rail, a 4-rack, a 5-clamping block, a 6-combined wheel, a 7-gear, an 8-clamping wheel, a 9-connecting rod, a 10-fixing strap, a 11-clamping block, a 12-cross beam, a 13-clamping groove, a 14-spring, a 15-anti-slip cap, a 16-right baffle, a 17-left baffle, a 18-notch, a 100-vertical standard section frame, a 200-transverse standard section frame and a 300-base.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inside", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present application will be described in accordance with its entire structure.

Referring to fig. 1-8, a tower crane ladder stand anti-falling device includes: the safety fixing braces 1 are sleeved on a human body and are used for protecting staff; the sliding rail 3 is arranged through the upright post 2 of the cat ladder, the sliding rail 3 is divided into two sides, and a rack 4 and a clamping block 5 are arranged in parallel in the vertical direction on one side of the sliding rail 3; the combination wheel 6 is located on the slide rail 3 in a matching way, the combination wheel 6 comprises a gear 7 and a clamping wheel 8 connected to the side edge of the gear 7, a connecting rod 9 is rotationally connected to the central position of the gear 7, a fixing belt 10 is detachably connected to the connecting rod 9, the other end of the fixing belt 10 is connected with one side of the safety fixing strap 1, a plurality of clamping blocks 11 are arranged in the clamping wheel 8, when a worker steps on the high-speed falling, the gear 7 drives the clamping wheel 8 to rotate at a high speed, and the clamping blocks 11 are thrown out to clamp the clamping blocks 5 under the action of centrifugal force, so that falling is avoided.

The working principle of the scheme is as follows: when staff climbs on the vertical ascending cat ladder of tower crane, wear safe fixed braces 1, safe fixed braces 1 both sides are connected respectively on the connecting rod 9 of both sides through two fixed bands 10, when the staff climbs upwards, gear 7 and clamping wheel 8 upwards slowly move along rack 4 under the effect of fixed band 10, when the staff carelessly steps on the sky and falls, can drop down fast, in the process of falling, gear 7 drives clamping wheel 8 high-speed rotation, fixture block 11 is thrown out under the effect of centrifugal force, the one end card of fixture block 11 is on clamping wheel 8, the other end blocks clamping block 5, avoid the staff to fall, rescue the staff can at last.

Preferably, the cross beam 12 of each ladder is sleeved with an anti-skid layer with concave-convex surfaces.

By adopting the scheme, the anti-slip layer is arranged to be in line with the concave-convex surface of a human hand, and granular substances are coated on the concave-convex surface of the anti-slip layer, so that friction force is increased, and the effect of climbing and saving is achieved.

As a preferable scheme, a plurality of clamping grooves 13 are formed in the circumferential direction of the clamping wheel 8, and the clamping grooves 13 correspond to the clamping blocks 11.

By adopting the scheme, the clamping groove 13 and the clamping block 11 are circumferentially arranged, when the clamping wheel 8 rotates at a high speed, the clamping block 11 is convenient to be thrown out to be clamped on the clamping block 5 under the action of centrifugal force, the fixing belt 10 and the safety fixing braces 1 are combined, and climbing staff is prevented from stepping on the device to fall.

Preferably, a spring 14 is connected between the bottom of the clamping groove 13 and the bottom of the clamping block 11.

By adopting the above scheme, the effect of the spring 14 is to prevent the whole clamping block 11 from being thrown out of the clamping wheel 8, and meanwhile, the pulling force of the spring 14 adopted in the embodiment is far smaller than the centrifugal force generated by the high-speed rotation of the clamping wheel 8, so that the clamping block 11 is ensured to be thrown out smoothly under the action of the centrifugal force and clamped on the clamping block 5.

Preferably, the connecting rod 9 is provided with a non-slip cap 15.

By adopting the scheme, the anti-slip cap 15 has the function of preventing the fixing belt 10 from sliding out of the connecting rod 9, so that the connection stability of the fixing belt 10 is improved.

Preferably, the safety harness 1 includes a waist strap 10 and leg straps 10, and the strap is connected to the connection of the waist strap 10 and the leg straps 10.

By adopting the above scheme, the safety fixing strap 1 in this embodiment adopts the mature safety fixing strap 1 in the market, and is not described in detail here too much, and its effect is to ensure the safety of staff, and one end of the fixing strap 10 adopts the binding buckle to connect at waist fixing strap 10 and waist fixing strap 10.

As a preferable scheme, the left baffle 17 and the right baffle 16 are arranged on two sides of the sliding rail 3, a notch 18 is formed by the left baffle 17 and the right baffle 16, and the connecting rod 9 extends out of the notch 18.

As a preferable scheme, the left baffle 17 and the right baffle 16 have the function of shielding the gear 7, prevent the gear 7 from sliding off the sliding rail 3, and improve the stability of the whole device.

Preferably, 2-5 clamping blocks 11 are arranged on the clamping wheel 8.

By adopting the scheme, a plurality of clamping blocks 11 are arranged, one clamping block 11 is guaranteed to be clamped on the clamping block 5, safety is improved, and 4 clamping blocks 11 are arranged in the embodiment.

As a preferable scheme, the clamping blocks 5 are vertically arranged on the side wall of the sliding rail 3 in parallel at equal intervals, and the interval between adjacent clamping blocks 5 is larger than the size of the end head of the clamping block 11.

By adopting the scheme, the clamping blocks 5 are vertically equidistant and the distance is larger than the size of the end head of the clamping block 11, so that the clamping block 11 can be timely and smoothly clamped on the clamping blocks 5, and workers are timely clamped to prevent the workers from falling.

The tower crane of fig. 9 is mainly used as the embodiment, and includes a vertical standard knot frame 100, a horizontal standard knot frame 200 and a base 300, and the anti-falling device of the present application is mainly disposed inside the vertical standard knot frame 200.

The foregoing description of specific exemplary embodiments of the application has been presented for the purpose of illustration and description, but it is not intended to limit the application to the precise form disclosed, and it is apparent that many changes and modifications may be made in accordance with the above teachings, and while embodiments of the application have been shown and described, this specific embodiment is merely illustrative of the application and not restrictive, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments being selected and described for the purpose of explaining the specific principles of the application and its practical application, so that modifications, substitutions, variations, and various other changes may be made to the embodiments without creatively departing from the principles and spirit of the application as desired by those skilled in the art without departing from the scope of the patent claims.

Claims

1. The utility model provides a tower crane cat ladder anti-falling device which characterized in that includes:

a safety fixing strap (1) sleeved on the human body and used for protecting staff;

the sliding rail (3) penetrates through the upright post (2) of the cat ladder, the sliding rail (3) is divided into two sides, and a rack (4) and a clamping block (5) are arranged in parallel in the vertical direction on one side of the sliding rail (3);

the combined wheel (6) is matched and arranged on the sliding rail (3), the combined wheel (6) comprises a gear (7) and a clamping wheel (8) connected to the side edge of the gear (7), a connecting rod (9) is rotationally connected to the center position of the gear (7), a fixing belt (10) is detachably connected to the connecting rod (9), the other end of the fixing belt (10) is connected to one side of the safety fixing strap (1), a plurality of clamping blocks (11) are arranged in the clamping wheel (8), when a worker steps on the sliding wheel to fall at a high speed, the gear (7) drives the clamping wheel (8) to rotate at a high speed, and the clamping blocks (11) are thrown out to clamp the clamping blocks (5) under the action of centrifugal force, so that falling is avoided.

2. The tower crane ladder fall protection device according to claim 1, characterized in that the cross beams (12) of each ladder are sleeved with an anti-slip layer with concave-convex surfaces.

3. The tower crane cat ladder anti-falling device according to claim 1, wherein a plurality of clamping grooves (13) are formed in the circumferential direction of the clamping wheel (8), and the clamping grooves (13) are correspondingly clamped with the clamping blocks (11).

4. The tower crane cat ladder anti-falling device according to claim 1, characterized in that a spring (14) is connected between the bottom of the clamping groove (13) and the bottom of the clamping block (11).

5. The tower crane cat ladder fall protection device according to claim 1, characterized in that the connecting rod (9) is provided with a slip cap (15).

6. The tower crane cat ladder fall protection device according to claim 1, characterized in that the safety harness (1) comprises a waist fixing strap (10) and a leg fixing strap (10), the tie being connected to the connection of the waist fixing strap (10) and the leg fixing strap (10).

7. The tower crane cat ladder anti-falling device according to claim 1, wherein the left baffle (17) and the right baffle (16) are arranged on two sides of the sliding rail (3), a notch (18) is formed by the left baffle (17) and the right baffle (16), and the connecting rod (9) extends out of the notch (18) to be arranged.

8. The tower crane cat ladder anti-falling device according to claim 1, characterized in that 2-5 clamping blocks (11) are arranged on the clamping wheel (8).

9. The tower crane cat ladder anti-falling device according to claim 1, wherein the clamping blocks (5) are vertically arranged on the side wall of the sliding rail (3) in parallel at equal intervals.

10. The tower crane cat ladder anti-falling device according to claim 9, characterized in that the distance between adjacent clamping blocks (5) is larger than the size of the end heads of the clamping blocks (11).