CN201318118Y

CN201318118Y - Telescopic ladder and ladder rack

Info

Publication number: CN201318118Y
Application number: CNU2008201795650U
Authority: CN
Inventors: 洪荣泰
Original assignee: TZOO YING ENTERPRISE CO Ltd
Current assignee: TZOO YING ENTERPRISE CO Ltd
Priority date: 2008-12-08
Filing date: 2008-12-08
Publication date: 2009-09-30
Anticipated expiration: 2018-12-08

Abstract

The utility model relates to a telescopic ladder and a ladder rack with the telescopic ladder. The telescopic ladder comprises two vertical racks and at least one rotating device. The vertical racks are arranged in a compartment manner, each vertical rack is respectively provided with a plurality of hollow-shaped supporting posts, and the inner diameter of the supporting posts is gradually reduced from bottom to top, so as to lead the supporting posts at the upper side to be folded in the supporting posts at the lower side; each supporting post is provided with groups of fixing holes which are mutually corresponding two by two; the rotating device is provided with a rotating rod and two pivoted units, the rotating rod can be located between two supporting posts which are transversely corresponding in a rotating manner, the pivoted units are respectively arranged at the two ends of the rotating rod, each pivoted unit is provided with a control block, two baffles and two positioning rods, the control block is fixedly arranged at the end of the rotating rod, the baffles are respectively leaned at the two sides of the control block in a contact manner, and the positioning rods which are respectively extended by the baffles can be stretched and protruded at the fixing holes in a penetrating manner. The fixing holes are mutually matched with the rotating device, so that the telescopic ladder can be unfolded and folded layer upon layer, thereby achieving the effects of leading convenient containing and not occupying space.

Description

Telescopic ladder and ladder

[technical field]

The utility model relates to a kind of ladder and ladder, particularly relates to a kind of ladder and ladder that can stretch and fold.

[background technology]

Ladder is the very general indispensable instrument of ascending a height in daily life or the work, existing ladder is mainly by two spaced vertical rods, reach several junction plates that are fixedly arranged between this two vertical rod and form, the user can hold vertical rod, is riding the action that junction plate is ascended a height.Though above-mentioned ladder can allow the user arrive desired height smoothly, but after using, can't fold, therefore it is upright or be horizontally placed on the ground to lean on wall, not only not portable, on taking in, also take up room very much, the possibility that causes the other people of process ladder to trip and meet accident is more arranged, moreover, existing ladder can't freely be adjusted height along with user's demand, the ladder that makes the user to need for different environmental requirements to prepare various differing heights is replaced use, on taking in, take up room, also increase user's burden.

[utility model content]

The purpose of this utility model is a kind of telescopic ladder that can fold layer by layer to be provided, not to take up room on taking in, and can adjust height according to user's demand again.

So, telescopic ladder of the present utility model, comprise two stands that are provided with at interval, each stand all has most hollow form support columns, and the internal diameter of each support column is a convergent from bottom to up, so that upside support column telescopically collapses in the downside support column, it is characterized in that: each support column has the corresponding in twos fixing hole of most groups, this telescopic ladder also comprises at least one tumbler, this tumbler has a dwang between two horizontal corresponding support columns rotationally, and two hinged unit that lay respectively at these dwang two ends, each hinged unit has a controll block that is fixedly arranged on this dwang end and generally is strip, two are touched the baffle plate that is butted on these controll block both sides respectively, two are extended and can be stretched through by this baffle plate respectively and protrude in the backstay of described fixing hole, and two elastic components that are sheathed on respectively on this two backstay, each elastic component is between corresponding baffle plate and support column.

When launching this telescopic ladder on making, the fixing hole alignment of downside support column is communicated with, and rotate this dwang when a projection position, can this controll block of interlock be transverse state, push described elastic component and put aside elastic force to promote this two plate washer, described backstay is then stretched through outstanding and is positioned simultaneously by the baffle plate interlock, in the fixing hole of downside support column, so that the upside support column is by being projection location shape in the downside support column, when rotating this handle in a stowed position, can this controll block of interlock be vertical state,, the elastic force of described elastic component pushes against this two plate washer so that discharging, and the described backstay of interlock breaks away from the fixing hole of upside support column, and be positioned in the fixing hole of downside support column, so that the upside support column collapses in the downside support column.

The utility model also provides a kind of ladder, it is characterized in that: comprise two described telescopic ladders of claim 1, each telescopic ladder also comprises seat board, the wherein fastener of a side that is hubbed at this seat board that connects the top side support column of two stands, and one be fixedly arranged on this seat board in contrast to the projection of an other side of this fastener, and wherein the fastener of a telescopic ladder is sticked on the projection of another telescopic ladder separably.

The beneficial effects of the utility model are: the corresponding in twos fixing hole of most groups on each support column, and tumbler works in coordination this telescopic ladder can be launched and fold layer by layer, can use and reach in response to varying environment and take in effect convenient and that do not take up room.

[description of drawings]

Fig. 1 is a stereogram, and the structure of the preferred embodiment of the telescopic ladder of the utility model is described;

Fig. 2 is an elevation, and the support column of the preferred embodiment that aid illustration is shown in Figure 1 is in the expansion process of positive apparent direction;

Fig. 3 is a part of side view cutaway drawing, and the support column of the preferred embodiment that aid illustration is shown in Figure 1 is in the part deployed condition of side-looking direction;

Fig. 4 is a part of sectional view, and the part sectional structure of this preferred embodiment when collapse state is described;

Fig. 5 is a stereogram, and this preferred embodiment is described, the detail characteristic that utilizes handle to rotate;

Fig. 6 is a stereogram, and the whole collapse state of this preferred embodiment is described;

Fig. 7 is a stereogram, and the preferred embodiment of the utility model ladder is described; And

Fig. 8 is a lateral view, the aspect of fastener and hook ring in this preferred embodiment of aid illustration.

[specific embodiment]

Below in conjunction with drawings and Examples the utility model is elaborated.Before the utility model is described in detail, be noted that in the following description similar elements is to represent with identical numbering.

Consult Fig. 1 and Fig. 2, the preferred embodiment of the telescopic ladder 1 of the utility model, comprise two stands 2 that are provided with at interval, each stand 2 all has several hollow form support columns 21, and the internal diameter of each support column 21 is convergents from top to bottom, so that upside support column 21 telescopicallies collapse in the downside support column 21, and each stand 2 also has a foundation 22 that is hubbed on the lower side support column 21, so that can bending with respect to lower side support column 21, this foundation 22 folds, and each support column 21 has two groups of corresponding in twos fixing holes 23, lay respectively at the upper and lower side (as shown in Figure 1) of this support column 21, detailed says, the fixing hole 23a that the fixing hole 23 of each support column 21 can be divided at upside, and the fixing hole 23b (as shown in Figure 2) of downside.

Consult Fig. 2,3, this telescopic ladder 1 also comprises several tumblers 3 (only showing 1 among Fig. 3), and several device with pedal 4 (only showing 1 among Fig. 3), each tumbler 3 has a dwang 31 between two horizontal corresponding support columns 21 rotationally, two hinged unit 32 that lay respectively at these dwang 31 two ends, and handle 33 that is fixed on this dwang 31, each hinged unit 32 has a controll block 321 that is fixedly arranged on these dwang 31 ends and generally is strip, two are touched the baffle plate 322 that is butted on these controll block 321 both sides respectively, two backstays 323 that extend and can stretch through and protrude in described fixing hole 23 by this baffle plate 322 respectively, and two elastic components 324 that are sheathed on respectively on this two backstay 323, each elastic component 324 is between corresponding baffle plate 322 and support column 21, and this handle 33 is to change controll block 321 orientation of each hinged unit 32 by rotating this dwang 31.

Each device with pedal 4 has an inverse-U-shape rack 41 that laterally connects between the corresponding support column 21, two are connected in these inverse-U-shape rack 41 both sides and the pivot connecting plate 42 (Fig. 3 only shows 1 because of the visual angle relation) in order to articulate this dwang 31, and several sleeves 43 that are fixedly arranged on this support inverted U-shaped 41 and stretch through for corresponding backstay 323 respectively, in present embodiment, the two ends of each elastic component 324 are to be resisted against on corresponding baffle plate 322 and the sleeve 43, and this inverse-U-shape rack 41 also has a top plate portion that is obliquely installed 411, is available for users to be convenient to the application of force and tramples.

Consult Fig. 3 and Fig. 5 in the lump, the lower end fixing hole 23b of upside support column 21 is alignd with the upper end fixing hole 23a of downside support column 21 to be communicated with, and rotate this handle 33 and make this dwang 31 when a projection position, can this controll block 321 of interlock be transverse state, the savings elastic force to promote these two baffle plates, 322 described elastic components 324 of extruding, 323 of described backstays stretch through outstanding by baffle plate 322 interlocks and are positioned simultaneously, the fixing hole 23a of downside support column 21, among the 23b, so that upside support column 21 is to be projection location shape in downside support column 21.User's quantity of described support column 21 that can the demand of looking extends, and cooperate above-mentioned tumbler 3 to adjust the length of this telescopic ladder 1 user can be trampled on the inverse-U-shape rack 41 of described device with pedal 4 and arrives desired height.

Consult Fig. 4 and Fig. 5 in the lump, when folding this telescopic ladder 1, rotate this handle 33 and be vertical state in stowed position while this controll block 321 of interlock,, the elastic force of described elastic component 324 pushes against this two baffle plate 322 so that discharging, adjacent to each other and the described backstay 323 of interlock of this two baffle plate 322 is broken away from, the fixing hole 23a of

downside support column

21,23b, so that upside support column 21 collapses in the downside support column 21, and on, the fixing hole 23a of

downside support column

21,23b also is disconnected state, just can reach the effect of taking in as shown in Figure 6 after each support column 21 is folded in the above described manner from top to bottom layer by layer.

By above-mentioned design, the telescopic ladder 1 of the utility model has the advantage of the following stated when reality is used:

(1) simple element:

This telescopic ladder 1 mainly is to utilize the direction of this controll block 321 of conversion to push against the baffle plate 322 that is positioned at these controll block 321 both sides, and arrange in pairs or groups described elastic component 324 and make described backstay 323 projections or break away from described

fixing hole

23a, 23b, and make this telescopic ladder reach the effect that stretches and fold, quite simplify on the member.

(2) handled easily:

The user is when this telescopic ladder 1 of operation, as long as rotate the handle 33 that is fixedly arranged on this dwang 31, with regard to the direction of convertible this controll block 321 and the described backstay 323 of interlock, stretch or fold this telescopic ladder 1, therefore quite convenient and simple in operation.

(3) appearance looks elegant:

This tumbler 3 is inverse-U-shape rack 41 belows that are hidden in this device with pedal 4 by outward appearance, therefore and be not easy directly to see this tumbler 3 by outward appearance, moreover, this device with pedal 4 is except hiding this tumbler 3, can also directly trample for the user and ascend a height, have attractive in appearance and practical effect concurrently.

Consult Fig. 7, the preferred embodiment of the utility model ladder, comprise two telescopic ladders 1 shown in Figure 1, each telescopic ladder 1 also comprises fastener 25, that a seat board 24, that connects two stand 2 top side support columns 21 is hubbed at a wherein side of this seat board 24 and is fixedly arranged on this seat board 24 in contrast to the projection 26 of an other side of this fastener 25, and at least one laterally connects the device with pedal 4 between the corresponding support column 21.This ladder is that the projection 26 that the fastener 25 by each telescopic ladder 1 is sticked in another telescopic ladder 1 assembles, and this ladder also comprises two hook rings 5 (only showing among the figure because the pass at visual angle lies in) that are locked on the corresponding device with pedal 4 of this two telescopic ladder respectively, and one colludes the hook of being located between this two hook ring 56.

Consult Fig. 8, can see in more detail that this fastener 25 is sticked in the aspect of this projection 26, and in present embodiment, the device with pedal 4 of the most contiguous this seat board 24 is to be called first device with pedal 4, the most contiguous this first device with pedal and be positioned at its below device with pedal 4 then be called second device with pedal 4, each hook ring 5 is to be locked on second device with pedal 4 of each telescopic ladder 1, and this two hook ring 5 is to face one another, this hook 6 when using of this ladder can be colluded be located between this two hook ring 5 and guarantee its stability, and this two hook ring 5 is locked on arbitrary device with pedal 4 and all can reaches identical effect, therefore should not exceed with the disclosed content of present embodiment.And this ladder is to utilize two telescopic ladders 1 as two strong points, need not to rest on the metope, not only can break away from the restriction of metope, use flexibly, and can increase the stability when using, and has the effect that expansion is taken in equally.

As shown in the above description, the telescopic ladder 1 of the utility model is the orientation of changing the controll block 321 of this tumbler 3 by this handle 33, so that upside support column 21 can projection be fixed in this telescopic ladder 1 that extends in the downside support column 21, or upside support column 21 can be collapsed in the downside support column 21 and reach the effect of taking in, the utility model ladder has used two telescopic ladders 1 as the strong point, have more the advantage of flexible use, preferable stability, so can reach effect of the present utility model really.

Claims

1. telescopic ladder, comprise two stands that are provided with at interval, each stand all has several hollow form support columns, and the internal diameter of each support column is a convergent from bottom to up, so that upside support column telescopically collapses in the downside support column, it is characterized in that: each support column has the corresponding in twos fixing hole of array, this telescopic ladder also comprises at least one tumbler, this tumbler has a dwang between two horizontal corresponding support columns rotationally, and two hinged unit that lay respectively at these dwang two ends, each hinged unit has a controll block that is fixedly arranged on this dwang end and generally is strip, two are touched the baffle plate that is butted on these controll block both sides respectively, two are extended and can be stretched through by this baffle plate respectively and protrude in the backstay of described fixing hole, and two elastic components that are sheathed on respectively on this two backstay, each elastic component is between corresponding baffle plate and support column.

2. telescopic ladder as claimed in claim 1 is characterized in that: each stand also has a foundation that is hubbed on the support column of lower side, folds so that this foundation can bend with respect to the lower side support column.

3. telescopic ladder as claimed in claim 2, it is characterized in that: this telescopic ladder also comprises at least one device with pedal, have one and laterally connect that inverse-U-shape rack between the corresponding support column, two are connected in these support both sides and in order to the pivot connecting plate of the dwang that articulates this tumbler, and several sleeves that are fixedly arranged on this support and stretch through for corresponding backstay respectively, the two ends of each elastic component are to be resisted against on corresponding baffle plate and the sleeve.

4. telescopic ladder as claimed in claim 3 is characterized in that: this tumbler also has one and is fixed on this dwang in order to change the handle in this controll block orientation.

5. telescopic ladder as claimed in claim 4 is characterized in that: this inverse-U-shape rack also has a top plate portion that is obliquely installed.

6. ladder, it is characterized in that: comprise two described telescopic ladders of claim 1, each telescopic ladder also comprises seat board, the wherein fastener of a side that is hubbed at this seat board that connects the top side support column of two stands, and one be fixedly arranged on this seat board in contrast to the projection of an other side of this fastener, and wherein the fastener of a telescopic ladder is sticked on the projection of another telescopic ladder separably.

7. ladder as claimed in claim 6, it is characterized in that: each telescopic ladder also comprises at least one laterally device with pedal between the corresponding support column of connection, this ladder also comprises two hook rings that are locked on respectively on the corresponding device with pedal of this two telescopic ladder, and one colludes the hook of being located between this two hook ring.