CN203022615U

CN203022615U - Ladder spike

Info

Publication number: CN203022615U
Application number: CN 201220576460
Authority: CN
Inventors: 徐国华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-05
Filing date: 2012-11-05
Publication date: 2013-06-26
Anticipated expiration: 2022-11-05

Abstract

The utility model discloses a ladder spike. The ladder spike comprises a spike connecting rod and a spike pedal. The spike connecting rod can be in two structure forms, wherein in the first structure form, a first pin hole is formed in the end part, far away from the spike pedal, of the spike connecting rod; and in the second structure form, two connecting arms are arranged on the two sides of the end part, far away from the spike pedal, of the spike connecting rod and have second pin holes respectively. In the manner, the work angle of the ladder spike can be adjusted, and the work state of a ladder can be changed. When the ladder spike inclines downwards, the ladder cannot be used for climbing.

Description

The pin nail that is used for cat ladder

Technical field

The utility model relates to the pin pin structure of the anti-error cat ladder that uses in a kind of ascend operation.

Background technology

Can use the cat ladder of climbing use in ascend operation, the cat ladder of using under different ascend operation ambient conditionss is also different, such as kinds such as power tower cat ladder, communications tower cat ladder, advertising tower cat ladders, but the pin of existing these cat ladders nail is all fixed, do not make the rotatable structure of pin nail, pin nail operating angle is non-adjustable, the pin nail only has a kind of fixing climbing state, cat ladder is in open climbed from state all the time, irrelevant staff also can arbitrarily be climbed, security incident easily occurs.

The utility model content

The technical problem that the utility model mainly solves is to provide a kind of pin nail for cat ladder; the pin nail that should be used for cat ladder is provided with pin hole; pin nail one end can rotate around pin; thereby can regulate the operating angle of pin nail; when the pin nail that is used for cat ladder is horizontal; this pin nail can be climbed; when the pin nail that is used for cat ladder is in downward-sloping position; this pin nail is in can not climb state; eliminated the possibility of irrelevant staff's climbing; for equipment provides safety precautions, generation that can decrease safent accident.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of pin nail for cat ladder is provided, comprise pin nail connecting rod and pin nail pedal, described pin nail connecting rod is connected pedal connection in alignment with pin, described pin nail connecting rod is provided with one first pin hole away from the end of described pin nail pedal.

In preferred embodiment of the utility model, described pin nail connecting rod is arcuate structure away from the end of described pin nail pedal.

In preferred embodiment of the utility model, the both sides of described end are provided with two the second linking arms, are respectively arranged with one second pin hole on described two the second linking arms.

The utility model is used for the pin nail of cat ladder can regulate the angle of inclination of pin nail easily when work; thereby change the use state of cat ladder; make cat ladder be on one's own time the state that can not climb; avoid the random climbing of unrelated person; safety precautions is provided; generation that can decrease safent accident, simple in structure, easy to operate.

Description of drawings

Fig. 1 is the front view of the utility model the first form of structure;

Fig. 2 is the top view of the utility model the first form of structure;

Fig. 3 is the front view of the first embodiment of the utility model the first form of structure;

Fig. 4 is the top view of the first embodiment of the utility model the first form of structure;

Fig. 5 is the front view of the second embodiment of the utility model the first form of structure;

Fig. 6 is the front view of the utility model the second form of structure;

Fig. 7 is the top view of the utility model the second form of structure;

Fig. 8 is the top view of the embodiment of the utility model the second form of structure;

Fig. 9 is the front view of the embodiment of the utility model the second form of structure;

In figure, the mark of each parts is as follows: 1, pin nail connecting rod, 2, pin nail pedal, the 3, first pin hole, 4, the first pin, the 5, first inner lifting gear, the 6, first outer tube, 7, the first outer tube opening, the 8, second pin, the 9, second inner lifting gear, 10, the second outer tube, 11, linking arm, the 12, second outer tube opening, 13, crus secunda nail connecting rod, the 14, second linking arm, the 15, the 3rd inner lifting gear, 16, the 3rd outer tube opening, the 17, second pin hole, the 18, the 3rd outer tube.

The specific embodiment

The utility model is elaborated below in conjunction with accompanying drawing and concrete preferred embodiment, so that advantage of the present utility model and feature can be easier to be understood by those skilled in the art, these embodiment are only illustrative purposes, are not intended to scope of the present utility model is limited.

See also Fig. 1, Fig. 2, Fig. 6 and Fig. 7, the utility model has two kinds of form of structure, and Fig. 1 and Fig. 2 are the view of the utility model the first form of structure, and Fig. 6 and Fig. 7 are the view of the utility model the second form of structure.

The first embodiment of the novel the first form of structure of this use is as follows:

see also Fig. 1, Fig. 2 and Fig. 3, the pin nail that is used for cat ladder that comprises described the first form of structure, the first pin 4, the first inner lifting gear 5 and the first outer tube 6, described pin nail for cat ladder comprises pin nail connecting rod 1 and pin nail pedal 2, described pin nail connecting rod 1 is connected pedal 2 connection in alignment with pin, described pin nail connecting rod 1 is provided with the first pin hole 3 away from the end of described pin nail pedal 2, described the first outer tube 6 is provided with the first outer tube opening 7, the described first inner lifting gear 5 is positioned at described the first outer tube 5 inside, described pin nail connecting rod 1 one ends of following closely for the pin of cat ladder are positioned at the described first outer tube opening 7, and pass the first pin hole 3 by the first pin 4 and be fixed on the first inner lifting gear 5.

In addition, described pin nail for cat ladder rotates around described the first pin 4 under the effect of self gravitation.

Further, relatively moving of up and down occurs in the first inner lifting gear 5 and the first outer tube 6, and the pin nail that drives for cat ladder by the first pin 4 moves together, when below and during the first outer tube opening 7 following concordant of pin nail connecting rod 1, the pin nail that is used for cat ladder this moment is in level and can climbs state, and the staff may stand in upwards climbing on pin nail pedal 2.When the top of pin nail connecting rod 1 during near the top of the first outer tube opening 7, the pin nail rotates around the first pin 4, pin nail pedal 2 is sagging under the effect of own wt, the pin nail is tilted, cat ladder was in and can not climbs state this moment, personnel can't stand in upwards climbing on pin nail pedal 2, realize anti-error function of climbing.

The second embodiment of the novel the first form of structure of this use is as follows:

see also Fig. 1, Fig. 2, Fig. 4 and Fig. 5, the pin nail that is used for cat ladder that comprises described the first form of structure, the second pin 8, the second inner lifting gear 9 and the second outer tube 10, be provided with two linking arms 11 on the described second inner lifting gear 9 outer walls, described two linking arms 11 are arranged symmetrically with perpendicular to the center line of the described second inner lifting gear 9, described the second outer tube 10 is provided with the second outer tube opening 12, the described second inner lifting gear 9 is positioned at the second outer tube 10 inside, described pin nail for cat ladder is fixed between two linking arms 11 in the second outer tube opening 12 and by the second pin 8, the second pin 8 passes the first pin hole 3 and two linking arms 11.

In addition, described pin nail for cat ladder rotates around the second pin 8 under the effect of self gravitation.

Further, relatively moving of up and down occurs in the second inner lifting gear 9 and two linking arm 11 and the second outer tube 10, and the pin nail that drives for cat ladder by the second pin 8 moves together, when below and during the second outer tube opening 12 following concordant of pin nail connecting rod 1, the pin nail that is used for cat ladder this moment is in level and can climbs state, and the staff may stand in upwards climbing on pin nail pedal 2.When the top of pin nail connecting rod 1 during near the top of the second outer tube opening 12, the pin nail rotates around the second pin 8, pin nail pedal 2 is sagging under the effect of own wt, the pin nail is tilted, cat ladder was in and can not climbs state this moment, personnel can't stand in upwards climbing on pin nail pedal 2, realize anti-error function of climbing.

The embodiment of the utility model the second form of structure is as follows:

see also Fig. 6 to Fig. 9, this embodiment comprises the pin nail that is used for cat ladder of described the second form of structure, the second pin 8, the 3rd inner lifting gear 15 and the 3rd outer tube 18, described pin nail for cat ladder comprises crus secunda nail connecting rod 13 and pin nail pedal 2, described crus secunda nail connecting rod 13 is connected pedal 2 connection in alignment with pin, described crus secunda nail connecting rod 13 is provided with two the second linking arms 14 away from the both sides, end of described pin nail pedal 2, be respectively arranged with one second pin hole 17 on described two the second linking arms 14, described the 3rd outer tube 18 is provided with the 3rd outer tube opening 16, the described the 3rd inner lifting gear 15 is positioned at the 3rd outer tube 18 inside, described two the second linking arms 14 following closely for the pin of cat ladder are positioned at the 3rd outer tube opening 16, and be fixed on the 3rd inner lifting gear 15 by the second pin 8.

Further, relatively moving of up and down occurs in the 3rd inner lifting gear 15 and the 3rd outer tube 18, and move together by two the second linking arms 14 of the second pin 8 drives, and then the pin nail that drives for cat ladder moves together, when below and during the 3rd outer tube opening 16 following concordant of crus secunda nail connecting rod 13, the pin nail that is used for cat ladder this moment is in level and can climbs state, and the staff may stand in upwards climbing on pin nail pedal 2.When the top of crus secunda nail connecting rod 13 during near the top of the 3rd outer tube opening 16, the pin nail rotates around the second pin 8, pin nail pedal 2 is sagging under the effect of own wt, the pin nail is tilted, cat ladder was in and can not climbs state this moment, personnel can't stand in upwards climbing on pin nail pedal 2, realize anti-error function of climbing.

Be different from prior art, pin nail and operating mechanism thereof that the utility model is used for cat ladder have advantages of simple in structure, easy to operate, can change easily the use state of cat ladder, make cat ladder be on one's own time the state that can not climb, avoid the random climbing of unrelated person.

The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model manual and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.

Claims

1. a pin nail that is used for cat ladder, is characterized in that, comprises pin nail connecting rod and pin nail pedal, and described pin nail connecting rod is connected pedal connection in alignment with pin, and described pin nail connecting rod is provided with one first pin hole away from the end of described pin nail pedal.

2. the pin nail for cat ladder according to claim 1, is characterized in that, described pin nail connecting rod is arcuate structure away from the end of described pin nail pedal.

3. the pin nail for cat ladder according to claim 1, is characterized in that, the both sides of described end are provided with two the second linking arms, are respectively arranged with one second pin hole on described two the second linking arms.