CN215804339U

CN215804339U - Folded cascade roofing cat ladder

Info

Publication number: CN215804339U
Application number: CN202121880189.XU
Authority: CN
Inventors: 谭骅; 张兆勇; 臧文海; 梁超; 宰兴明
Original assignee: Jiangsu Hongsheng Construction Engineering Group Co ltd
Current assignee: Jiangsu Hongsheng Construction Engineering Group Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-11
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a foldable roof crawling ladder which comprises a fixed crawling ladder and a foldable crawling ladder, wherein one side of the fixed crawling ladder is fixedly connected with a wall surface through a fixed rod, the fixed crawling ladder is hinged with the foldable crawling ladder through a hinge, a plurality of supporting rods are installed on the inner side of the foldable crawling ladder, a first double-iron lug is installed on the fixed crawling ladder, a sliding groove is formed in the outer side of the foldable crawling ladder, a pulley is installed in the sliding groove in a sliding mode, the pulley consists of a vehicle body, wheels and a second double-iron lug, an air pressure damping rod is installed between the first double-iron lug and the second double-iron lug through a first bolt, safety lock buckle devices are symmetrically and fixedly installed between the fixed crawling ladder and the foldable crawling ladder, and single-iron lugs are welded on two sides of the bottom end of the fixed crawling ladder. The safety locking device comprises a sliding block, a sliding groove, a pneumatic damping rod, a safety locking device, a safety locking lug, a locking bolt, a.

Description

Folded cascade roofing cat ladder

Technical Field

The utility model relates to the technical field of building construction equipment, in particular to a foldable roof crawling ladder.

Background

In the field of building construction, part of roofs have no direct stairs, in order to facilitate maintenance operation, an outer wall ladder needs to be arranged, in order to prevent children from climbing to the top of a building through the ladder and causing a building falling accident, the bottom of the ladder and the floor of the building have a larger safety distance, but workers need to assist objects to climb when overhauling, inconvenience is brought, safety protection and measures for preventing the children from climbing are provided, in common roof design, the vertical distance between the lowest step of a common ladder and the floor is larger, so that the ladder can be climbed only by matching with auxiliary steps when climbing the ladder, inconvenience is brought to later inspection and maintenance and the like, the basic principle of the existing outer wall ladder comprises a fixed ladder section arranged on the wall surface, a pair of fixed climbing rods, a plurality of fixed stepping rods arranged between the pair of fixed climbing rods and fixed supporting rods arranged between the fixed climbing rods and the wall surface, through connecting piece folding connection in the folding ladder section of fixed ladder section lower extreme, folding ladder section includes, a pair of folding climbing rod, locate a plurality of folding poles of marking time between a pair of folding climbing rod, and locate the folding bracing piece between folding climbing rod and the wall, though simple structure, high durability and convenient use, safety and reliability, nevertheless for guaranteeing children can't scramble, the fixed part bottom of cat ladder often is higher apart from ground height, in addition for guaranteeing long-term the use, the cat ladder adopts the great steel of dead weight usually, use the in-process of cat ladder folding part in the upset, highly higher when cat ladder folding part overturns downwards, weight is great, the impulse is great, user often can't control, can cause the injury to building and user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a foldable roof crawling ladder to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: a foldable roof crawling ladder comprises a fixed crawling ladder and a foldable crawling ladder, wherein one side of the fixed crawling ladder is fixedly connected with a wall through a fixing rod, the fixed crawling ladder is hinged to the foldable crawling ladder through a hinge, a plurality of supporting rods are installed on the inner side of the foldable crawling ladder, a first double-iron lug is installed on the fixed crawling ladder, a sliding groove is formed in the outer side of the foldable crawling ladder, a pulley is installed in the sliding groove and consists of a vehicle body, a wheel and a second double-iron lug, an air pressure damping rod is installed between the first double-iron lug and the second double-iron lug through a first bolt, a safety lock device is symmetrically and fixedly installed between the fixed crawling ladder and the foldable crawling ladder, single-iron lugs are welded on two sides of the bottom end of the fixed crawling ladder, nuts are welded on outer surface opening portions of the single-iron lugs, positioning holes are formed in two sides of the upper end of the foldable crawling ladder, and a second bolt penetrates through the nut and the positioning hole in a threaded connection mode.

Furthermore, a rubber cushion pad is installed at the bottom end of the supporting rod, and the total length of the supporting rod and the rubber cushion pad is equal to the length of the fixing rod.

Further, the width dimension of the opening of the sliding chute is larger than that of the second double-iron lug, and the width dimension of the opening of the sliding chute is smaller than that of the vehicle body.

Furthermore, the safety locking device on the fixed crawling ladder is located below the first double-iron lug, and the safety locking device on the folding crawling ladder is located above the sliding groove.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model reduces the gravity problem existing when the folding crawling ladder is turned over by moving the pulley in the sliding chute and using the air pressure damping rod, improves the use convenience, and simultaneously improves the safety performance by locking the folding crawling ladder in two states of non-use and use through the safety locking device and the single iron lug.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of the present invention in a folded state;

FIG. 3 is a schematic view of the construction of the tackle of the present invention;

FIG. 4 is a schematic structural view of a first duplex iron lug of the present invention;

FIG. 5 is a schematic view of a connection structure of a single-iron lug according to the present invention;

fig. 6 is a schematic view of the connection of the first ferrous lug and the pneumatic damper of the present invention.

In the figure: 1. fixing the crawling ladder; 2. the ladder stand is folded; 3. fixing the rod; 4. a hinge; 5. a support bar; 6. a first bimetal ear; 7. a chute; 8. a pulley; 9. a vehicle body; 10. a wheel; 11. a second double-iron lug; 12. a first bolt; 13. an air pressure damping rod; 14. a safety latch device; 15. a single iron lug; 16. a nut; 17. positioning holes; 18. a second bolt; 19. a rubber cushion pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in the attached drawings of the specification, fig. 1 to 6 show a foldable roof crawling ladder, which comprises a fixed crawling ladder 1 and a foldable crawling ladder 2, wherein one side of the fixed crawling ladder 1 is fixedly connected with a wall surface through a fixed rod 3, the fixed crawling ladder 1 is hinged with the foldable crawling ladder 2 through a hinge 4, a plurality of support rods 5 are arranged on the inner side of the foldable crawling ladder 2, a first double-iron lug 6 is arranged on the fixed crawling ladder 1, a chute 7 is arranged on the outer side of the foldable crawling ladder 2, a pulley 8 is slidably arranged in the chute 7, the pulley 8 is composed of a vehicle body 9, wheels 10 and a second double-iron lug 11, an air pressure damping rod 13 is arranged between the first double-iron lug 6 and the second double-iron lug 11 through a first bolt 12, safety locking devices 14 are symmetrically and fixedly arranged between the fixed crawling ladder 1 and the foldable crawling ladder 2, single-iron lugs 15 are welded on both sides of the bottom end of the fixed crawling ladder 1, and nuts 16 are welded on the outer surface opening of the single-iron lugs 15, positioning holes 17 are formed in two sides of the upper end of the folding ladder stand 2, and second bolts 18 penetrate through the nuts 16 and the positioning holes 17 in a threaded mode.

In order to reduce the problem that when the folding ladder stand is put down, the supporting rod directly hits the wall surface, the vibration generated by the first step is large, the hand is easy to hurt, and the wall surface is damaged, furthermore, a rubber cushion pad 19 is installed at the bottom end of the supporting rod 5, and the total length of the supporting rod 5 and the rubber cushion pad 19 is equal to the length of the fixing rod 3.

In order to effectively move the pulley 8 in the chute 7, further, the width dimension of the opening of the chute 7 is larger than the width dimension of the second double-iron lug 11, and the width dimension of the opening of the chute 7 is smaller than the width dimension of the vehicle body 9.

In order to fix the fixed ladder stand 1 and the folding ladder stand 2 together through the safety locking device 14 without influencing and to be lower than the fixed ladder stand to be more suitable for an operator to operate, the safety locking device 14 on the fixed ladder stand 1 is further positioned below the first double-iron lug 6, and the safety locking device 14 on the folding ladder stand 2 is positioned above the sliding chute 7.

The utility model reduces the gravity problem existing when the folding crawling ladder 2 is turned over by moving the pulley 8 in the chute 7 and using the air pressure damping rod 13, improves the use convenience, and simultaneously improves the safety performance by locking the folding crawling ladder 2 in two states of nonuse and use through the safety locking device 14 and the single iron lug 15.

Example two:

the utility model provides a foldable roof crawling ladder, when the crawling ladder is needed, a safety locking device 14 is opened, namely a locking bolt is pulled out, a foldable crawling ladder 2 rotates around a hinge 4, a pulley 8 moves in a chute 7 at the moment, two ends of an air pressure damping rod 13 rotate around a first double-iron ear 6 and a second double-iron ear 11 and extend simultaneously, the main function is to prevent the foldable crawling ladder 2 from directly rotating and falling down after the safety locking device 14 is unfastened and hit workers, which is not beneficial to use, after the foldable crawling ladder 2 is put down, until a rubber cushion 19 on a support rod 5 is pressed against a wall surface, then the second bolt 18 is inserted into a nut 16 and a positioning hole 17 on the single-iron ear 15 for limiting and fixing, so that the workers are prevented from being unstable in climbing, the integral structure is compact, and the operation and use of the workers are convenient, when the folding chair is not needed to be used, the folding chair can be effectively folded, other normal activities below the folding chair cannot be influenced, and children cannot be collided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a folded cascade roofing cat ladder, includes fixed cat ladder (1) and folding cat ladder (2), its characterized in that: one side of the fixed crawling ladder (1) is fixedly connected with the wall through a fixing rod (3), the fixed crawling ladder (1) is hinged to the folding crawling ladder (2) through a hinge (4), a plurality of supporting rods (5) are installed on the inner side of the folding crawling ladder (2), a first double-iron-ear (6) is installed on the fixed crawling ladder (1), a sliding groove (7) is formed in the outer side of the folding crawling ladder (2), a pulley (8) is installed in the sliding groove (7) in a sliding mode, the pulley (8) is composed of a vehicle body (9), a wheel (10) and a second double-iron-ear (11), an air pressure damping rod (13) is installed between the first double-iron-ear (6) and the second double-iron-ear (11) through a first bolt (12), and a buckle device (14) is symmetrically and fixedly installed between the fixed crawling ladder (1) and the folding crawling ladder (2), the fixed cat ladder is characterized in that single-iron lugs (15) are welded on two sides of the bottom end of the fixed cat ladder (1), nuts (16) are welded at openings of the outer surfaces of the single-iron lugs (15), positioning holes (17) are formed in two sides of the upper end of the folding cat ladder (2), and second bolts (18) are connected to the nuts (16) and the positioning holes (17) in a penetrating threaded mode.

2. Foldable roof ladder according to claim 1, characterised in that: the bottom end of the supporting rod (5) is provided with a rubber cushion pad (19), and the total length of the supporting rod (5) and the rubber cushion pad (19) is equal to the length of the fixing rod (3).

3. Foldable roof ladder according to claim 1, characterised in that: the width dimension of the opening of the sliding chute (7) is larger than the width dimension of the second double-iron lug (11), and the width dimension of the opening of the sliding chute (7) is smaller than the width dimension of the vehicle body (9).

4. Foldable roof ladder according to claim 1, characterised in that: the safety locking device (14) on the fixed ladder stand (1) is located below the first double-iron lug (6), and the safety locking device (14) on the folding ladder stand (2) is located above the sliding groove (7).