CN201110119Y

CN201110119Y - Safety pulling ladder

Info

Publication number: CN201110119Y
Application number: CNU2007200293807U
Authority: CN
Inventors: 王相武
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-19
Filing date: 2007-10-19
Publication date: 2008-09-03
Anticipated expiration: 2017-10-19

Abstract

The utility model discloses a safe pulling ladder, which comprises a plurality of ladder bodies which are formed by a plurality of waling stripes which are arranged between two support bars, each ladder bodies are mutually and slidingly connected in turn to form a pulling ladder, the top end of the ladder body which is arranged on the uppermost end of the pulling ladder is provided with a fixing portion which can fix the pulling ladder when in use, the rear faces of two support bars of each ladder body are respectively provided with chutes whose upper ends are closed and lower ends are opened along the sliding direction of the ladder body, the cross sections of the chutes take cross shaped, the lower ends of two support bars are respectively provided with stop blocks, and the stop blocks are arranged outside of a groove on one side which is closed to the support bars, the upper ends of the lower faces of the two support bars of each ladder body are respectively provided with slide blocks, the cross sections of the slide blocks take cross shaped and are engaged with chutes on the adjacent ladder bodies to connect in a sliding way, the slide blocks which are faraway from the support bars are provided with hooks which are engaged with the stop blocks. The safe pulling ladder is not only safe to use, but also is convenient to pull, benches of the ladder are reliably connected.

Description

Safe pull ladder

Technical field

The utility model relates to a kind of ladder, especially relates to a kind of safe pull ladder that passes through the telescopic adjustment length of self.

Background technology

The employed telescopic ladder of people has varied at present, but these pull ladders in use, owing to its structural reason, sometimes there is the situation that can not adapt with environment for use, ladder is difficult for fixing during as unsettled use, and ladder is prone to and shakes, fixing not firm some unsafe factors that wait, allow the user of service that great sense of insecurity is arranged, thereby cause occurring some unnecessary contingencies.And the pull ladder that current people use is when hanging use, its terraced body is close on the attachment that hangs ladder more, like this when using ladder to climb, the space that the appearance pin is being stepped on is less, influenced the safety of using, each bench was blocked pull inconvenience when sliding connection structure was prone to pull between these each section of pull ladder ladders simultaneously, phenomenons such as the connectivity robustness during use between each bench is relatively poor influence the use of people to the pull ladder.

Summary of the invention

Technical problem to be solved in the utility model has provided a kind of not only safe in utilization, and pull each bench convenient, ladder connects reliable safe pull ladder.

The technical solution of the utility model is: safe pull ladder, comprise some by between two poles, being provided with the terraced body that some stulls constitute, each terraced body is slidingly connected mutually successively and constitutes the pull ladder, be positioned at pull ladder upper end and be provided with when using the fixedly fixed part of pull ladder, the back side of described each terraced body two pole is respectively equipped with upper end closed and the chute of lower ending opening along terraced body glide direction, the chute cross section is cross, two pole bottoms are respectively equipped with block, and block is positioned at outside the notch of nearly pole bottom surface one side; Upper end, each terraced body two pole bottom surface is respectively equipped with slide block, and the slide block cross section is cross and cooperates with adjacent terraced body pole upper hopper chute and is slidingly connected, and described slide block is provided with the hook that cooperates with block away from strut ends.

As a kind of improvement, describedly be positioned at that pull ladder is rotating respectively on the pole of terraced each terraced body of body downside to be provided with mousing-hook topmost, be provided with spring between mousing-hook and the pole.

As further improvement, the lower end of described each terraced body is respectively equipped with and can makes the pull ladder leave the supporter of ladder attachment.

As further improvement, described fixed part comprises and is positioned at the pull ladder stay hook that is respectively equipped with of two pole inboards, terraced body top topmost, stay hook and pole are articulated and connected, and are provided with connecting rod between described two stay hooks, are provided with positioner between described stay hook and the pole.

As further improvement, described positioner comprises and is hinged with the guide plate that is provided with guide groove on the pole, and described stay hook is provided with the guide shaft that passes the guide plate guide groove and slide along guide groove, and described guide plate guide groove is provided with and the corresponding locating slot of guide shaft.

As further improvement, be positioned at described pull ladder and be connected with drag hook by rope in the top of terraced body topmost.

As further improvement, described safe pull ladder also comprises the protection rope.

As further improvement, be arranged in order respectively on described each pole and be provided with some jacks, the top that is positioned at terraced body two poles of bottom in the described adjacent terraced body is respectively equipped with and the corresponding latch of jack.

Owing to adopted the safe pull ladder of said structure, by some by between two poles, being provided with the terraced body that some stulls constitute, each terraced body is slidingly connected mutually successively and constitutes the pull ladder, be positioned at described pull ladder and be provided with when using the fixedly fixed part of pull ladder in terraced body top topmost, the back side of each terraced body two pole is respectively equipped with upper end closed and the chute of lower ending opening along terraced body glide direction, the chute cross section is cross, two pole bottoms are respectively equipped with block, and block is positioned at outside the notch of nearly pole bottom surface one side; Each upper end, terraced body two pole bottom surfaces is respectively equipped with slide block, the slide block cross section is cross and cooperates with adjacent terraced body pole upper hopper chute and is slidingly connected, slide block is provided with the hook that cooperates with block away from strut ends, the cross chute that cooperatively interacts that is provided with by pole and the mode of crosshead shoe like this, increased the reliability that is slidingly connected between each bench of ladder, also reduced the phenomenon that each bench is blocked mutually simultaneously when pull; And, make each bench of ladder easily rotate in use by the mode that hook on the slide block and pole bottom block articulate, and more flexible, be convenient to install and use; Supporter that each terraced body is provided with promotes the surface that the pull ladder leaves the attachment such as the wall that are used to hang ladder, has increased greatly to hold pin when user's ladder is climbed and stepping on the position area, has protected the safety of using.And the fixed part that the terraced body by pull ladder upper end is provided with, people just can be fixed in the suspension of pull ladder easily and be carried out hanging operation on windowsill or other fixture, and the shaking phenomenon of rope ladder can not occur, have ensured user's personal safety.Adopt on the pole and be hinged with the fixedly fixed part of hook-type, and be provided with positioner, can regulate the angle of stay hook easily, be convenient to pull ladder hook is held on windowsill or other object, strengthened the security performance when using.And by being provided with the mousing-hook that promotes spring, can not use and when packing up, each terraced body is hooked at the pull ladder, prevent to throw off each other, be convenient to storing; By on pole, being respectively equipped with jack, and be provided with the frame mode of latch, actual conditions that can be when using the pull ladder, the length of regulating the pull ladder easily the pole of adjacent terraced body.Top rope by the terraced body in pull ladder the top is connected with drag hook, the security performance in the time of can further increasing the use of pull ladder.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.

Fig. 1 is the structural representation of the utility model safety pull ladder;

Fig. 2 is that chute and slide block cooperate schematic diagram;

Fig. 3 is that slide block cooperates schematic diagram with block.

The specific embodiment

As shown in Figure 1, safe pull ladder, comprise some by between two poles 11, being provided with the terraced body 1 that some stulls 12 constitute, each terraced body 1 is slidingly connected mutually successively and constitutes the pull ladder, the quantity of the stull 12 on ladder body 1 and each terraced body 1 can be determined according to actual mode of occupation and production condition shape, as can being provided with 3 sections, four sections or multistage ladder body more, and stull 12 numbers that are provided with of each terraced body 1 can be 5,6 or other number; Be provided with in use the fixedly fixed part of pull ladder on the top that is positioned at the terraced body in pull ladder the top, as be separately positioned on the stay hook 2 of two poles, 11 inboards, by stay hook 2 pull ladder is hung to be fixed on windowsill or other fixture and carry out hanging operation, or the pull ladder is hung on the afterbody of other ladder by stay hook 2, to increase ladder length, and stay hook 2 adopts hinged mode to be connected with pole, and between two stay hooks, be provided with connecting rod 21, and between stay hook 2 and pole 11, be provided with positioner 9, adjust the angle that stay hook 2 is opened by positioner, the suspension of ladder is fixed with convenient.Positioner 9 can adopt people's mode commonly used at present, as comprise and be hinged with the guide plate that is provided with guide groove on the pole 11, and on stay hook 2, be provided with the guide shaft that passes the guide plate guide groove and slide along guide groove, the guide plate guide groove is provided with and the corresponding locating slot of guide shaft, locating slot is arranged in order and is provided with several, and when opening stay hook 2, guide shaft slides along guide groove like this, when being opened to proper angle, guide shaft is placed corresponding locating slot, can be with stay hook 2 fixed angle.As shown in Figures 2 and 3, the back side 1 liang of pole 11 of each terraced body is respectively equipped with upper end closed and the chute 4 of lower ending opening along terraced body glide direction, chute 4 cross sections are cross, are respectively equipped with block 13 in two poles, 11 bottoms, and block 13 is positioned at outside the notch of nearly pole bottom surface one side; Upper end, each terraced body two poles 11 bottom surface is respectively equipped with slide block 5, and slide block 5 cross sections are cross and cooperate with adjacent terraced body pole upper hopper chute and are slidingly connected, and slide block 5 is provided with the hook that cooperates with block 1 away from strut ends; Each terraced body is slidingly connected successively by the cooperation of chute 4 and slide block 5, like this when using the pull ladder, twitch adjacent terraced body, thereby slide block 5 slides along chute 4 ladder is opened, when slide block 5 slided into chute 4 lower ending opening places, the hook that slide block 5 is provided with just was hooked on the block 13, and two adjacent terraced bodies are coupled together use, and connect flexibly, be convenient to regulate.When packing up, only slide block 5 need be pushed back along chute 4 and get final product, and can below pole top shoe 5, add slide block again, the slide block that just adds is T-shaped and be not provided with hook, when skidding off chute 4, it does not contact like this with block 13, and when it cooperates with chute 4, then strengthened adjacent two terraced body fitment stability.As shown in Figure 1; be respectively equipped with in the lower end of each terraced body 1 and can make the pull ladder leave the supporter 8 of ladder attachment; be respectively equipped with the mode that supports quarter butt as adopting in the lower end of two poles 11 of each terraced body 1; the supporter 8 promotion pull ladders that just can be provided with on the terraced body 1 when using ladder like this leave the surface of the attachment such as the wall that are used to hang ladder by each; increase the user greatly and when climbing, held the area that pin is being stepped on the position, protected the safety of using.

As shown in Figure 1, safe pull ladder is rotating respectively on the pole 11 of each terraced body of terraced body bottom topmost to be provided with mousing-hook 3 being positioned at, when packing up when not using at the pull ladder, thereby can hook the stull 12 on the adjacent terraced body or be arranged on other parts on the adjacent terraced body each terraced body be hooked by mousing-hook 3, prevent to throw off each other, be convenient to storing, and can between mousing-hook 3 and pole 11, be provided with spring, effect by spring, the stull 12 on the adjacent terraced body is hooked in promotion mousing-hook 3, strengthens its safety.

Security performance when using in order further to strengthen the pull ladder, as shown in Figure 1, be connected with drag hook 23 on the top that is positioned at the terraced body in pull ladder the top by rope 22, when using ladder, after ladder is hung up properly, drag hook 23 can be hooked and is fixed in a safe fixed point, again with rope 22 tension and fastening getting final product.The stull 12 of each terraced body can be adopted and be in-line, with simplified structure, and the volume that reduces.And the supporting protection rope of safety pull ladder can be used, when under nonemergency, using this pull ladder like this, can slowly open the pull ladder, with the application life of director's ladder by the pulling of protection rope.

Because the working environment difference when using the pull ladder to carry out operation, therefore the length that needs the pull ladder to stretch out is also different, for solving this phenomenon, as shown in fig. 1, on the pole 11 of each terraced body, be arranged in order respectively and be provided with some jacks 6, and the top of pole 11 that is positioned at the terraced body of bottom in each adjacent terraced body is respectively equipped with latch 7, like this, just can come length by cooperating between latch 7 and the jack 6 according to operating environment adjustment pull ladder.

Claims

1, safe pull ladder, comprise some by between two poles (11), being provided with the terraced body (1) that some stulls (12) constitute, described each terraced body (1) is slidingly connected into the pull ladder successively mutually, described pull ladder upper end is provided with when using the fixedly fixed part of pull ladder, it is characterized in that: described each terraced body (1) two pole (11) back side is respectively equipped with upper end closed and the chute (4) of lower ending opening along terraced body glide direction, described chute (4) cross section is cross, described two poles (11) bottom is respectively equipped with block (13), and described block (13) is positioned at outside the one side channel mouth of nearly pole bottom surface; Upper end, described each terraced body two poles (11) bottom surface is respectively equipped with slide block (5), and described slide block (5) cross section is cross and cooperates with adjacent terraced body pole upper hopper chute and is slidingly connected, and described slide block (5) is provided with the hook that cooperates with block (13) away from strut ends.

2, safe pull ladder according to claim 1 is characterized in that: described be positioned at pull ladder topmost each terraced body pole (11) of terraced body downside be rotating respectively be provided with mousing-hook (3), be provided with spring between mousing-hook (3) and the pole (11).

3, safe pull ladder according to claim 1 is characterized in that: described each terraced body lower end is respectively equipped with and can makes the pull ladder leave the supporter (8) of ladder attachment.

4, safe pull ladder according to claim 1, it is characterized in that: described fixed part comprises that being positioned at the pull ladder is respectively equipped with stay hook (2) in terraced body (1) two pole (11) inboard topmost, stay hook (2) is articulated and connected with pole (11), be provided with connecting rod (21) between described two stay hooks, be provided with positioner (9) between described stay hook (2) and the pole (11).

5, safe pull ladder according to claim 4, it is characterized in that: described positioner (9) comprises on the pole (11) and is hinged with the guide plate that is provided with guide groove, described stay hook (2) is provided with the guide shaft that passes the guide plate guide groove and can slide along guide groove, arranges on the described guide plate guide groove to be provided with some and the corresponding locating slot of guide shaft.

6, safe pull ladder according to claim 1 is characterized in that: be positioned at described pull ladder and be connected with drag hook (23) by rope (22) in the top of terraced body topmost.

7, safe pull ladder according to claim 1 is characterized in that: described safe pull ladder also comprises the protection rope.

8, according to each described safe pull ladder in the claim 1 to 7, it is characterized in that: described each pole (11) is arranged in order respectively and is provided with some jacks (6), and the top that is positioned at terraced body two poles (11) of bottom in the described adjacent terraced body is respectively equipped with and the corresponding latch of jack (7).