CN207934802U - A kind of cat ladder of engineering machinery - Google Patents

Abstract

The utility model is related to mechanical equipment technical fields, and disclose a kind of cat ladder of engineering machinery, including engine base, upper ladder and lower ladder, the bottom of engine base is fixedly connected with free bearing, and engine base is rotatably connected to axis pin by free bearing, and the outer surface of axis pin is respectively sleeved on sleeve and baffle, it is fixedly connected at the top of the bottom of sleeve and upper ladder, the outer surface of upper ladder is welded with fixing sleeve, and the inner wall of fixing sleeve is slidably connected with lower ladder, and the side of lower ladder is provided with cross bar.The utility model, it can be in order to the rotation of the device by the way that free bearing, axis pin, sleeve, baffle and torque spring is arranged, to facilitate the use of the device, the device can be made more firm when in use by torque spring, deck and limited block, it is not easy to shake, by the way that cross bar, skid resistant course and nut is arranged so that cat ladder cleaning easy to disassemble, the nursing for facilitating cat ladder, to extend the service life of cat ladder.

Description

A kind of cat ladder of engineering machinery

Technical field

The utility model is related to mechanical equipment technical field, specially a kind of cat ladder of engineering machinery.

Background technology

Setting cat ladder is generally required in large-scale engineering machinery to meet the passage needs of staff.It is with crawler crane Example, it is possible to need in walkway or on the outside of large component be arranged cat ladder with facilitate staff reach crawler crane compared with Corresponding operating is carried out at high position.

Common engineering machinery is all tall and big bulky, and it is very laborious that operating personnel need to climb up driver's cabin, to affect machine The working efficiency of tool.

Utility model content

（One）The technical issues of solution

In view of the deficiencies of the prior art, the utility model provides a kind of cat ladder of engineering machinery, has movable stretching Cat ladder the advantages that, solve the problems, such as that mechanical efficiency is low.

（Two）Technical solution

To realize that the purpose of above-mentioned movable stretching, the utility model provide the following technical solutions：A kind of engineering machinery The bottom of cat ladder, including engine base, upper ladder and lower ladder, the engine base is fixedly connected with free bearing, and the engine base is turned by free bearing Dynamic to be connected with axis pin, the outer surface of the axis pin is respectively sleeved on sleeve and baffle, the top of the bottom of the sleeve and upper ladder Portion is fixedly connected, and the outer surface of the upper ladder is welded with fixing sleeve, and the inner wall of the fixing sleeve is slidably connected with lower ladder, institute The side for stating lower ladder is provided with cross bar, and the other side of lower ladder is run through and extended in one end of the cross bar, the cross bar Threaded one end is connected with nut, and the bottom of the lower ladder is fixedly connected with telescopic rod, and the outer surface of the telescopic rod is socketed with The bottom of spring, the telescopic rod is fixedly connected with backing plate, and the back side of the axis pin is provided with the snap ring for being hinged on engine base bottom.

Preferably, the side of the baffle is fixedly connected with torque spring, and the torque spring is socketed in the appearance of axis pin Face.

Preferably, the side of the sleeve is fixedly connected with deck, and the bottom of the deck side is fixedly connected with limit Block.

Preferably, the top of fixing sleeve is run through and is extended at the top of the lower ladder, and the top of lower ladder is fixed and connected It is connected to fixture block.

Preferably, the outer surface of the cross bar is fixedly connected with skid resistant course, and the skid resistant course is rubber antiskid layer.

Preferably, the snap ring is arc snap ring, and the snap ring is hinged by hinge and engine base.

（Three）Advantageous effect

Compared with prior art, the utility model provides a kind of cat ladder of engineering machinery, has following advantageous effect：

1, the cat ladder of the engineering machinery, can be in order to the dress by the way that free bearing, axis pin, sleeve, baffle and torque spring is arranged The rotation set can be such that the device is using to facilitate the use of the device by torque spring, deck and limited block When it is more firm, be not easy to shake, pass through and cross bar, skid resistant course and nut are set so that cat ladder cleaning easy to disassemble facilitates cat ladder Nursing, to extend the service life of cat ladder, skid resistant course can increase the frictional force of cross bar and staff foot, prevent Foot skids with cross bar, so as to avoid staff because falling down the safety accident brought.

2, the cat ladder of the engineering machinery makes this by hinge, snap ring, axis pin, torque spring and limited block collective effect Apparatus structure is simple, suppressible can pack up and be positioned over engine base bottom, convenient for collection and uses, practicability is good, to be promoted The working efficiency of engineering machinery, by telescopic rod, spring and backing plate can the device using when play bumper and absorbing shock Effect, extend the service life of the device, descending stair frame can be made convenient for flexible by fixing sleeve and fixture block, to enhance The practicability of the device.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model left view.

In figure：1 engine base, ladder, 3 times ladders, 4 free bearings, 5 axis pins, 6 sleeves, 7 baffles, 8 torque springs, 9 decks, 10 on 2 Limited block, 11 fixing sleeves, 12 fixture blocks, 13 cross bars, 14 skid resistant courses, 15 nuts, 16 telescopic rods, 17 springs, 18 backing plates, 19 hinges, 20 snap rings.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Please refer to Fig.1-2, a kind of cat ladder of engineering machinery, including engine base 1, upper ladder 2 and lower ladder 3, the bottom of engine base 1 It is fixedly connected with free bearing 4, engine base 1 is rotatably connected to axis pin 5 by free bearing 4, and the outer surface of axis pin 5 is respectively sleeved on 6 He of sleeve The side of baffle 7, baffle 7 is fixedly connected with torque spring 8, and torque spring 8 is socketed in the outer surface of axis pin 5, is cut with scissors by being arranged Seat 4, axis pin 5, sleeve 6, baffle 7 and torque spring 8 can in order to the rotation of the device, to facilitate the use of the device, The side of sleeve 6 is fixedly connected with deck 9, and the bottom of 9 side of deck is fixedly connected with limited block 10, passes through torque spring 8, card Seat 9 and limited block 10 can make the device more firm when in use, be not easy to shake, the top of the bottom of sleeve 6 and upper ladder 2 Portion is fixedly connected, and the outer surface of upper ladder 2 is welded with fixing sleeve 11, and the inner wall of fixing sleeve 11 is slidably connected with lower ladder 3, descending stair The top of fixing sleeve 11 is run through and is extended at the top of frame 3, and the top of lower ladder 3 is fixedly connected with fixture block 12, passes through fixation Set 11 and fixture block 12 can make descending stair frame 3 convenient for flexible, to enhance the practicability of the device, the side setting of lower ladder 3 There are cross bar 13, the outer surface of cross bar 13 to be fixedly connected with skid resistant course 14, skid resistant course 14 is rubber antiskid layer, and skid resistant course 14 can increase The frictional force of leger 13 and staff foot prevents foot from skidding with cross bar 13, so as to avoid staff because falling down The other side of lower ladder 3 is run through and extended in one end of the safety accident brought, cross bar 13, and the threaded one end of cross bar 13 is connected with Nut 15 crosses setting cross bar 13, skid resistant course 14 and nut 15 so that and cat ladder cleaning easy to disassemble facilitates the nursing of cat ladder, from And the service life of cat ladder is extended, the bottom of lower ladder 3 is fixedly connected with telescopic rod 16, and the outer surface of telescopic rod 16 is socketed with The bottom of spring 17, telescopic rod 16 is fixedly connected with backing plate 18, can be in the device by telescopic rod 16, spring 17 and backing plate 18 Play the role of bumper and absorbing shock when use, extend the service life of the device, the back side of axis pin 5 is provided with the machine of being hinged on The snap ring 20 of 1 bottom of seat, snap ring 20 are arc snap ring, and snap ring 20 is hinged by hinge 19 and engine base 1, passes through hinge 19, snap ring 20, axis pin 5, torque spring 8 and 10 collective effect of limited block make the apparatus structure simple, suppressible can pack up and be positioned over 1 bottom of engine base convenient for collection and uses, and practicability is good, to improve the working efficiency of engineering machinery.

When in use, the cat ladder of the engineering machinery squeezes torque spring 8 and rotates upper ladder 2 by rotational sleeve 6, will The side of upper ladder 2 sticks into limited block 10, pulls downward on lower ladder 3, and cross bar 13 is injected to upper ladder 2 and descending stair successively respectively Then frame 3 screws on nut 15 in one end of cross bar 13, at this moment can climb up engineering machinery by upper ladder 2 and lower ladder 3 On, it when not in use, then squeezes 8 rotational sleeve 6 of torque spring and packs up upper ladder 2 and lower ladder 3, by upper ladder 2 Bottom sticks into snap ring 20.

In conclusion the cat ladder of the engineering machinery, passes through hinge 19, snap ring 20, axis pin 5, torque spring 8 and limited block 10 Collective effect makes the apparatus structure simple, suppressible can pack up and be positioned over 1 bottom of engine base, convenient for collection and uses, real It is good with property, to improve the working efficiency of engineering machinery, can be made in the device by telescopic rod 16, spring 17 and backing plate 18 With when play the role of bumper and absorbing shock, extend the service life of the device, can be made by fixing sleeve 11 and fixture block 12 Lower ladder 3 is convenient for flexible, to enhance the practicability of the device.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of cat ladder of engineering machinery, including engine base（1）, upper ladder（2）With lower ladder（3）, it is characterised in that：The engine base （1）Bottom be fixedly connected with free bearing（4）, the engine base（1）Pass through free bearing（4）It is rotatably connected to axis pin（5）, the axis pin （5）Outer surface be respectively sleeved on sleeve（6）And baffle（7）, the sleeve（6）Bottom and upper ladder（2）Top fix Connection, the upper ladder（2）Outer surface be welded with fixing sleeve（11）, the fixing sleeve（11）Inner wall and lower ladder（3）It is sliding Dynamic connection, the lower ladder（3）Side be provided with cross bar（13）, the cross bar（13）One end run through and extend to lower ladder （3）The other side, the cross bar（13）Threaded one end be connected with nut（15）, the lower ladder（3）Bottom be fixedly connected There is telescopic rod（16）, the telescopic rod（16）Outer surface be socketed with spring（17）, the telescopic rod（16）Bottom fix connect It is connected to backing plate（18）, the axis pin（5）The back side be provided with and be hinged on engine base（1）The snap ring of bottom（20）.

2. a kind of cat ladder of engineering machinery according to claim 1, it is characterised in that：The baffle（7）Side fix It is connected with torque spring（8）, the torque spring（8）It is socketed in axis pin（5）Outer surface.

3. a kind of cat ladder of engineering machinery according to claim 1, it is characterised in that：The sleeve（6）Side fix It is connected with deck（9）, the deck（9）The bottom of side is fixedly connected with limited block（10）.

4. a kind of cat ladder of engineering machinery according to claim 1, it is characterised in that：The lower ladder（3）Top pass through It wears and extends to fixing sleeve（11）Top, and lower ladder（3）Top be fixedly connected with fixture block（12）.

5. a kind of cat ladder of engineering machinery according to claim 1, it is characterised in that：The cross bar（13）Outer surface it is solid Surely it is connected with skid resistant course（14）, the skid resistant course（14）For rubber antiskid layer.

6. a kind of cat ladder of engineering machinery according to claim 1, it is characterised in that：The snap ring（20）For arc card Ring, the snap ring（20）Pass through hinge（19）With engine base（1）It is hinged.