CN205382869U - Decorate wooden movable double ladder - Google Patents
Decorate wooden movable double ladder Download PDFInfo
- Publication number
- CN205382869U CN205382869U CN201521074100.5U CN201521074100U CN205382869U CN 205382869 U CN205382869 U CN 205382869U CN 201521074100 U CN201521074100 U CN 201521074100U CN 205382869 U CN205382869 U CN 205382869U
- Authority
- CN
- China
- Prior art keywords
- preformed hole
- flitch
- zinc
- support
- right support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an operation is ascended a height with wooden movable double ladder to decorations, including the left branch prop, the right branch props and high strength bolt, the left branch props the upper end of propping with the right branch and is equipped with the preformed hole, high strength bolt props the left branch through the preformed hole and props articulated connection, its characterized in that with the right branch: the left branch props and is equipped with zinc -plated expansion pipe in upper end and the preformed hole of right branch on propping, high strength bolt passes zinc -plated expansion pipe, props the left branch and prop articulated the connection with the right branch. The utility model discloses in use has avoided direct the emergence with the flitch preformed hole of lead screw to rub, extrude through the protection of zinc -plated expansion pipe to the preformed hole to the direct friction of having solved conventional double ladder lead screw and fixed position, and the double ladder top hole grow that causes, problem that the lead screw drops, ftractures are and the effectual double ladder life that has prolonged.
Description
Technical field
This utility model relates to portable wooden double ladder, and particularly a kind of decorations wooden moving herringbone of operation of ascending a height is terraced.
Background technology
Known wooden double ladder is made up of left support, right support and high-strength bolt.This structure has the drawback that: the screw mandrel of existing wooden double ladder is directly through preformed hole, screw mandrel is made directly to rub with reserved wood hole, extrude, cause wooden double ladder in use preformed hole to become greatly, screw mandrel comes off, ftractures, and hole is increasing along with use frequency obtains, screw mandrel is also more and more loose, so that screw mandrel comes off, ruptures, cause the generation of security incident.
Utility model content
In order to overcome the deficiency of existing wooden double ladder, this utility model provides a kind of decorations to ascend a height operation wooden moving herringbone ladder, solves the technical problem that during wooden double ladder uses, reserving hole becomes big, screw mandrel comes off, screw mandrel ftractures.
For achieving the above object, this utility model adopts the following technical scheme that a kind of decorations wooden moving herringbone of operation of ascending a height is terraced, include left support, right support and high-strength bolt, the upper end of described left support and right support is provided with preformed hole, left support and right support are articulated and connected by described high-strength bolt by preformed hole, it is characterized in that: be provided with zinc-plated expansion tube in the preformed hole of described left support upper end and right support upper end, described high-strength bolt passes zinc-plated expansion tube, left support and right support is articulated and connected.
Preferably, described left support is assembled by two vertical left support flitches and the one group of spaced horizontal left threading flitch being connected between these two left support flitches, and described right support is assembled by two vertical right support flitches and the one group of spaced horizontal right threading flitch being connected between these two right support flitches.
Preferably, the cross section of described left support flitch and right support flitch is the cross section of 40mm*80mm, left threading flitch and right threading flitch and is 40mm*60mm.
Preferably, described zinc-plated expansion tube interference fit joint is in preformed hole.
Preferably, the described internal diameter of zinc-plated expansion tube and the external diameter of high-strength bolt are 10mm.
Preferably, state zinc-plated expansion tube and be arranged on the downward 120～150mm place in left support top and right support top.
Compared with prior art this utility model has the characteristics that and beneficial effect:
1, this utility model is according to wooden double ladder screw mandrel size, places the zinc-plated expansion tube of A10 in advance, and is secured to firmly, make zinc-plated expansion tube and flitch as the common stress of entirety in flitch preformed hole.
2, this utility model increases the intensity of preformed hole and friction resistant ability, it is to avoid screw mandrel directly directly compresses and rubs against with flitch.
3, this utility model solves and makes the problem that wooden double ladder connects the preformed hole reaming of axle place, screw mandrel comes off, ftractures, and reaches the safe handling of wooden double ladder and the effect increased the service life.
4, this utility model overcomes in the use of conventional wooden double ladder, and screw mandrel friction, extruding preformed hole cause double ladder short-life, it is ensured that double ladder fabricating quality and use safety.
5, this utility model can be widely applied to the engineering decorative stage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is this utility model node full-page proof schematic diagram.
Accompanying drawing labelling:: 1 left support, 2 right supports, 3-high-strength bolt, the zinc-plated expansion tube of 4-, 5-left support flitch, 6 right support flitches, 7-left threading flitch, 8-right threading flitch.
Detailed description of the invention
Embodiment referring to Fig. 1, as shown in Figure 2, this decorations ascend a height operation wooden moving herringbone ladder, include left support 1, right support 2 and high-strength bolt 3, the upper end of described left support 1 and right support 2 is provided with preformed hole, left support 1 and right support 2 are articulated and connected by described high-strength bolt 3 by preformed hole, being provided with zinc-plated expansion tube 4 in the preformed hole of described left support 1 upper end and right support 2 upper end, described high-strength bolt 3 passes zinc-plated expansion tube 4, left support 1 and right support 2 is articulated and connected.This utility model is in use by the protection to preformed hole of the zinc-plated expansion tube; avoid screw mandrel directly to rub with flitch preformed hole, extrude; thus solving the double ladder screw mandrel of routine and the direct friction of fixed position; and the double ladder top hole caused becomes the problem that big, screw mandrel comes off, ftractures, and effectively extend double ladder service life.
Preferably, described left support 1 is assembled by two vertical left support flitches 1 and the one group of spaced horizontal left threading flitch 7 being connected between these two left support flitches, and described right support 2 is assembled by two vertical right support flitches 6 and the one group of spaced horizontal right threading flitch 8 being connected between these two right support flitches.
Preferably, the cross section of described left support flitch 5 and right support flitch 6 is 40mm*80mm, and the cross section of left threading flitch 7 and right threading flitch 8 is 40mm*60mm.
Preferably, state zinc-plated expansion tube 4 and be arranged on the downward 120～150mm place in left support 1 top and right support 2 top.
Preferably, the described internal diameter of zinc-plated expansion tube 4 and the external diameter of high-strength bolt 3 are 10mm, and zinc-plated expansion tube 4 interference fit joint is in preformed hole.By the protection to preformed hole of the zinc-plated expansion tube 4, it is to avoid screw mandrel directly rubs with flitch preformed hole, extrude and the cavity change that causes greatly, the problem such as screw mandrel fracture, effectively extend the service life of wooden double ladder.
Claims (6)
1. decorations are ascended a height operation wooden moving herringbone ladder, include wooden left support (1), wooden right support (2) and high-strength bolt (3), the upper end of described left support (1) and right support (2) is provided with preformed hole, left support (1) and right support (2) are articulated and connected by described high-strength bolt (3) by preformed hole, it is characterized in that: the preformed hole of described left support (1) upper end and right support (2) upper end is provided with zinc-plated expansion tube (4), described high-strength bolt (3) the zinc-plated expansion tube of traverse (4), left support (1) and right support (2) are articulated and connected.
2. a kind of decorations according to claim 1 wooden moving herringbone of operation of ascending a height is terraced, it is characterized in that: described left support (1) is assembled by two vertical left support flitches (5) and the one group of spaced horizontal left threading flitch (7) being connected between these two left support flitches, described right support (2) is assembled by two vertical right support flitches (6) and the one group of spaced horizontal right threading flitch (8) being connected between these two right support flitches.
3. a kind of decorations according to claim 2 wooden moving herringbone of operation of ascending a height is terraced, it is characterized in that: the cross section of described left support flitch (5) and right support flitch (6) is the cross section of 40mm*80mm, left threading flitch (7) and right threading flitch (8) and is 40mm*60mm.
4. a kind of decorations according to claim 1 and 2 wooden moving herringbone of operation of ascending a height is terraced, it is characterised in that: described zinc-plated expansion tube (4) interference fit joint is in preformed hole.
5. a kind of decorations according to claim 1 and 2 are ascended a height operation wooden moving herringbone ladder, it is characterised in that: the internal diameter of described zinc-plated expansion tube (4) and the external diameter of high-strength bolt (3) are 10mm.
6. a kind of decorations according to claim 1 and 2 wooden moving herringbone of operation of ascending a height is terraced, it is characterised in that: described zinc-plated expansion tube (4) is arranged on the downward 120～150mm place in left support (1) top and right support (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074100.5U CN205382869U (en) | 2015-12-22 | 2015-12-22 | Decorate wooden movable double ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074100.5U CN205382869U (en) | 2015-12-22 | 2015-12-22 | Decorate wooden movable double ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205382869U true CN205382869U (en) | 2016-07-13 |
Family
ID=56337812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521074100.5U Expired - Fee Related CN205382869U (en) | 2015-12-22 | 2015-12-22 | Decorate wooden movable double ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205382869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505930A (en) * | 2017-02-28 | 2018-09-07 | 五冶集团上海有限公司 | A kind of folding movement double ladder and preparation method thereof for installing roof suspended ceiling |
-
2015
- 2015-12-22 CN CN201521074100.5U patent/CN205382869U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505930A (en) * | 2017-02-28 | 2018-09-07 | 五冶集团上海有限公司 | A kind of folding movement double ladder and preparation method thereof for installing roof suspended ceiling |
| CN108505930B (en) * | 2017-02-28 | 2019-12-17 | 五冶集团上海有限公司 | Folding movable herringbone ladder for mounting roof suspended ceiling and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |