CN207436893U - A kind of folding utility cat ladder - Google Patents

Abstract

The utility model is related to engineering mechanical device field, more particularly, to a kind of folding utility cat ladder.A kind of folding utility cat ladder mainly includes two parts, when the cat ladder main part being made of several cat ladder units, second is that holder part, in addition idler wheel is installed on lower end cat ladder unit, the relative position of stent and cat ladder main body is changed by shop bolt, it can be achieved that cat ladder is adjusted to vertical ladder, A types ladder, and closely fold three kinds of states, it is more with function, when leaving unused, occupy little space, the advantages that high is be easily moved, is had broad application prospects.

Description

A kind of folding utility cat ladder

Technical field

The utility model is related to engineering mechanical device field, more particularly, to a kind of folding utility cat ladder.

Background technology

Ladder is common a kind of instrument in engineering.At present, ladder used in many mechanics is mostly fixed, high Degree is certain, and ladder belongs to long flat, and lengthwise dimension is very big, not only the very occupied space, but also be inconvenient to move when idle It carries.

Utility model content

The utility model aims to solve the problem that the problem of being mentioned in background technology, and the utility model proposes a kind of collapsible more work( Energy cat ladder, can replace the similar product belonging to patent at this stage, and the technical solution used is as follows：

A kind of folding utility cat ladder, mainly including two parts, first, by several common cat ladder units, upper end cat ladder list The cat ladder main part of member, lower end cat ladder unit and cat ladder pin composition, second is that holder part, including：By upper end stent, lower end The main support and be made of upper intermediate support and lower intermediate support and stent pin that stent, ordinary stent and stent pin form Intermediate support；Additionally include shop bolt, idler wheel, idler wheel pin.

The common cat ladder unit of upper end cat ladder unit, even number and lower end cat ladder unit pass sequentially through cat ladder pin and are connected on one It rises, forms cat ladder main part, cat ladder main part has two location holes of array in corresponding position, all cat ladder units Pin hole is coaxial；There is stent in cat ladder main body both sides, be connected by prismatic pair with cat ladder main body, the horizontal position of limit bracket It moves.Main support passes sequentially through stent pin by upper end stent, ordinary stent and lower end stent and is composed in series, 4 altogether, upper centre Stent forms intermediate support after being connected with lower intermediate support by stent pin, positioned at the centre of cat ladder main body, 2 altogether, props up There is corresponding location hole on frame, positioned by shop bolt and cat ladder main body, the axial displacement of limit bracket；Lower end cat ladder The mounting groove of idler wheel can be installed by having on unit, be connected by idler wheel pin with idler wheel.

The utility model has the following advantages that：1. having a wide range of application, vertical ladder use can be done, A types ladder can be also made and use；2. not Used time is foldable, and floor space is small；3. after folding, under the action of idler wheel, it is easy to move.

Description of the drawings

Fig. 1 the utility model A type scalariforms state is intended to,

Fig. 2 the utility model principle schematic diagrames,

Fig. 3 the utility model vertical ladder schematic diagrames,

Fig. 4 the utility model folded state schematic diagrames.

Symbol description in figure：1. idler wheel, 2. idler wheel pins, 3. lower end cat ladder units, 4 common cat ladder units, 5. cat ladder pins It follows closely, 6. times intermediate supports, intermediate support on 7., 8. lower end stents, 9. shop bolts, 10. upper end stents, 11. upper end cat ladder lists Member, 12. ordinary stents, 13. stent pins, a. location holes.

Specific embodiment

The utility model is described in further detail with example below in conjunction with the accompanying drawings：

As shown in Figs 1-4, a kind of folding utility cat ladder, mainly including two parts, first, by several common cat ladder lists The cat ladder main part that member 4, upper end cat ladder unit 11, lower end cat ladder unit 3 and cat ladder pin 5 form, second is that holder part, bag It includes：The main support that be made of upper end stent 10, lower end stent 8, several ordinary stents 12 and stent pin 13 and by propping up among upper The intermediate support of frame 7 and lower intermediate support 6 and stent pin 13 composition；Additionally include shop bolt 9, idler wheel 1, idler wheel pin 2。

The common cat ladder unit 4 of upper end cat ladder unit 11, even number and lower end cat ladder unit 3 pass sequentially through cat ladder pin 5 and go here and there It is linked togather, forms cat ladder main part, cat ladder main part has two location hole a (working hole a1 of array in corresponding position With folding hole a2), see Fig. 2, all cat ladder units (common cat ladder unit 4, upper end cat ladder unit 11, lower end cat ladder unit 3) Two pin holes it is coaxial；There is stent in cat ladder main body both sides, be connected by prismatic pair with cat ladder main body, the horizontal stroke of limit bracket To displacement.Main support passes sequentially through stent pin 13 by upper end stent 10, several ordinary stents 12 and lower end stent 8 and connects group Into 4 altogether, upper intermediate support 7 and lower intermediate support 6 after the connection of stent pin 13 by forming intermediate support, positioned at cat ladder The centre of main body, 2 altogether, corresponding location hole a, is positioned by shop bolt 9 and cat ladder main body on stent, limitation branch The axial displacement of frame.There is the mounting groove that can install idler wheel 1 on lower end cat ladder unit 3, be connected by idler wheel pin 2 with idler wheel 1.

A kind of above-mentioned folding utility cat ladder operation principle is as follows：

As shown in Fig. 2 (a), when shop bolt 9 is in working hole a1 positions, the phase of cat ladder unit 401 and cat ladder unit 402 To the axis of axis of rotation and cat ladder pin 501 and the opposite axis of rotation and stent pin 131 of stent 121 and stent 122 Axis is not conllinear, therefore, between cat ladder unit 401 and cat ladder unit 402 can not relative rotation, at this time stent be in work shape State.As shown in Fig. 2 (b), when 9 working hole a2 positions of shop bolt, the opposite revolution of cat ladder unit 401 and cat ladder unit 402 The axis of axis and cat ladder pin 501 and the axis of the opposite axis of rotation and stent pin 131 of stent 121 and stent 122 are total to Line, therefore, between cat ladder unit 401 and cat ladder unit 402, stent 121 and stent 122 can around common axis relative rotation, Stent is in rotation status at this time.

As shown in figure 3, when 4 main supports and 2 intermediate supports are all in working condition, cat ladder is in vertical ladder state, As shown in Figure 1, when 4 main supports are in running order, when 2 intermediate supports are in rotation status, cat ladder is in A type scalariforms State；As shown in figure 4, when 4 main supports and 2 intermediate supports are all in rotation status, cat ladder is can be folded into shown in figure, no In use, account for less space, due to the lower section of the cat ladder after folding of idler wheel 1, cat ladder is easy to move, have more wide Application prospect.

Claims (1)

1. a kind of folding utility cat ladder, it is characterised in that：Mainly include two parts, first, by several common cat ladder units (4), the cat ladder main part of upper end cat ladder unit (11), lower end cat ladder unit (3) and cat ladder pin (5) composition, second is that stent Part, including：The main branch being made of upper end stent (10), lower end stent (8), several ordinary stents (12) and stent pin (13) Frame and the intermediate support being made of upper intermediate support (7) and lower intermediate support (6) and stent pin (13), it is fixed to additionally include Position pin (9), idler wheel (1), idler wheel pin (2), the common cat ladder unit (4) of upper end cat ladder unit (11), even number and lower end are climbed Terraced unit (3) passes sequentially through cat ladder pin (5) series connection, forms cat ladder main part, and cat ladder main part has in corresponding position Two location holes of array, common cat ladder unit (4), upper end cat ladder unit (11), the pin hole of lower end cat ladder unit (3) are same Axis, has stent in cat ladder main body both sides, is connected by prismatic pair with cat ladder main body, and main support is by upper end stent (10), common branch Frame (12) passes sequentially through stent pin (13) with lower end stent (8) and is composed in series, altogether four, upper intermediate support (7) and it is lower in Between stent (6) connected by stent pin (13) after form intermediate support, positioned at the centre of cat ladder main body, two altogether, stent Upper corresponding location hole, is positioned, having on lower end cat ladder unit (3) can install by shop bolt (9) with cat ladder main body The mounting groove of idler wheel (1) is connected by idler wheel pin (2) with idler wheel (1).