CN101392628A - Side-tilting prevention trestle ladder - Google Patents
Side-tilting prevention trestle ladder Download PDFInfo
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- CN101392628A CN101392628A CNA2008102329925A CN200810232992A CN101392628A CN 101392628 A CN101392628 A CN 101392628A CN A2008102329925 A CNA2008102329925 A CN A2008102329925A CN 200810232992 A CN200810232992 A CN 200810232992A CN 101392628 A CN101392628 A CN 101392628A
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- handstand
- lock sleeve
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- ladder
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Abstract
The invention discloses a side-falling prevention standing ladder, which comprises two straight ladder bodies which are movably connected through hinges, wherein top ends of the two straight ladder bodies are fixedly connected with a working plate respectively; pedals on middle lower parts of the two straight ladder bodies are connected with a flexible safety belt respectively; lifting eyes are fixed under end parts of the two working plates symmetrically; and the two straight ladder bodies are connected with side-falling prevention vertical pipes through the two lifting eyes. The side-falling prevention standing ladder has the advantages that when the gravity center of an operator is deflected sidewise in the operation process, the ladder is prevented from falling sidewise, and casualties are prevented, and the supporting stability of the standing ladder is improved effectively.
Description
Technical field the present invention relates to a kind of free-standing ladder, particularly a kind of side-tilting prevention trestle ladder.
Though the present double ladder of background technology is more stable, for the ease of carrying and depositing, that mostly designs, makes is narrow, when ladder than higher, perhaps in operating personnel's course of work, center of gravity to lateral deviation from, cause ladder to be toppled over easily, cause casualties to the side.
Summary of the invention purpose of the present invention is exactly at the deficiencies in the prior art, provides a kind of braced structures stable side-tilting prevention trestle ladder.
For achieving the above object, the present invention adopts following technical scheme:
A kind of side-tilting prevention trestle ladder, comprise by hinge flexibly connect by two vertical ladder bodies, the top of two vertical ladder bodies is fixedly connected with working plate respectively, the pedal place is connected with the Flexible Safety band below in two vertical ladder bodies, below two working plate ends symmetry be fixedly connected with hanger, be connected with the anti-side pipe that stands upside down by two hangers.When two vertical ladder bodies were opened, anti-side handstand pipe can be supported on ground, made double ladder increase the strong point, reached the effect that anti-side is fallen.Anti-in addition side handstand pipe can also be to the angled support in the side of double ladder, the better effects if that anti-side is fallen.
The left and right sides of described two working plates is equipped with anti-side handstand pipe.The left and right sides side pipe supporting surface that stands upside down of all setting up defences is bigger, the better effects if that anti-side is fallen.
Described hanger is a corner strap, and the one side of corner strap offers through hole, through hole be used for screw with hanger be fixed on working plate below; Offer axis hole on the perpendicular one side of hanger and working plate, the upper end of anti-side handstand pipe offers connecting hole, and screw rod passes the axis hole of two hangers and the connecting hole of anti-side handstand pipe, will prevent that side handstand pipe is movably connected between two hangers.Anti-side handstand pipe can be swung angled support on screw rod.
The slide outside of described anti-side handstand pipe is combined with regulating sleeve, the outside left and right sides of regulating sleeve is fixedly connected with a connector respectively, connector is provided with spring connecting hole, spring is connected with regulating sleeve by spring connecting hole, the other end of spring is connected with connecting rod, and the other end of connecting rod flexibly connects by the middle lower end of universal base and vertical ladder body side surface; The bottom of described universal base is fixedly connected with screw rod, and screw rod passes pad, vertical ladder body side surface and pad successively, and is fastening by nut; Offer the connecting rod link slot of connecting rod on the body of universal base, screw rod passes the sidewall of connecting rod link slot and the through hole of connecting rod lower end successively under the connecting rod, and is fastening by nut.Regulating sleeve can slide on anti-side handstand pipe, adjust the position when anti-side handstand pipe, regulating sleeve also slides into the certain position desired location thereupon, and connecting rod drives the universal base rotation simultaneously, connecting rod stands upside down anti-side and manages the centre that is in the external side of two vertical ladders basically, and is convenient during use.
Regulating sleeve on the described anti-side handstand pipe is connected with lock sleeve by the external screw thread of lower end, the lower end of lock sleeve is enclosed within the outside of anti-side handstand pipe, lock sleeve endoporus bottom is the up big and down small conical surface, be provided with the split ring snap ring on the position of the conical surface, the split ring snap ring is enclosed within the outside of anti-side handstand pipe; Lock sleeve is used for regulating sleeve is fixed on the outside of anti-side handstand pipe.When the rotational lock cover makes lock sleeve up along the external screw thread of regulating sleeve, the bottom of regulating sleeve is pressed onto the split ring snap ring conical surface of lock sleeve endoporus bottom, the conical surface tightens up the split ring snap ring, lock ring is on anti-side handstand pipe, this moment, regulating sleeve was fixed on the outside of anti-side handstand pipe, the angle that anti-side is opened outside standing upside down and managing is fixed, and anti-side handstand pipe is fixed, and the effect of anti-side is more effective.
The cross section semicircular in shape of described split ring snap ring, semicircular straight flange cooperates with the outside of anti-side handstand pipe.Contact surface between the split ring snap ring of cross section semicircular in shape and the anti-side handstand pipe is big, and locking effect is good, and is more reliable.
The diameter of described lock sleeve bottom endoporus is provided with open slot, and open slot is used for the fitting opening spring arch clasp.
The slides within of described anti-side handstand pipe lower end is combined with extension bar, the lower end of anti-side handstand pipe is connected with second lock sleeve by external screw thread, the second lock sleeve lower end is enclosed within the outside of extension bar, the second lock sleeve endoporus bottom is the up big and down small conical surface, be provided with the split ring snap ring on the position of the conical surface, the split ring snap ring is enclosed within the outside of extension bar; Second lock sleeve is used for extension bar is fixed on anti-side handstand pipe.Extension bar is provided in a side of the inside of anti-side handstand pipe, when outside anti-side is stood upside down pipe, opening to certain angle, the length of anti-side handstand pipe may be not enough to support to ground, with extension bar by moving required length in the anti-side handstand pipe, rotating second lock sleeve makes second lock sleeve up along the external screw thread of anti-side handstand pipe, the bottom of anti-side handstand pipe is pressed onto the split ring snap ring conical surface of the second lock sleeve endoporus bottom, the conical surface tightens up the split ring snap ring, lock ring is on extension bar, this moment, second regulating sleeve was fixed on the outside of extension bar, the outer angle of opening of anti-side handstand pipe is fixed, and anti-side handstand pipe and extension bar are fixed, and the effect of anti-side is more effective.The structure of second lock sleeve is the same with lock sleeve structure on the regulating sleeve, size dimension difference just, and using method and operating principle are identical.
The beneficial effect of side-tilting prevention trestle ladder of the present invention is, prevents operating personnel in the course of the work, center of gravity to lateral deviation from the time, ladder is toppled over to the side, causes casualties, and effectively improves the stability of strutting system of double ladder.
Description of drawings Fig. 1 is a structural representation of the present invention;
Fig. 2 is a Lifting Lug Structure schematic diagram of the present invention;
Fig. 3 is the sectional view of A-A among Fig. 2;
Fig. 4 is the syndeton schematic diagram of the anti-side handstand pipe of the present invention and hanger and regulating sleeve;
Fig. 5 is the structural representation of split ring snap ring of the present invention;
Fig. 6 is the sectional view of B-B among Fig. 5;
Fig. 7 is a lock sleeve of the present invention bottom surface structural representation;
Fig. 8 structural representation that to be universal base of the present invention be connected with connecting rod with the vertical ladder body side surface;
Fig. 9 is the left view of Fig. 8;
Figure 10 is that the present invention's second lock sleeve is managed the structural representation that is connected with extension bar with anti-side handstand.
The present invention is further illustrated below in conjunction with accompanying drawing for the specific embodiment, as Fig. 1, Fig. 2, shown in Figure 3:
A kind of side-tilting prevention trestle ladder, comprise by hinge flexibly connect by two vertical ladder bodies 1, the top of two vertical ladder bodies 1 is fixedly connected with working plate 2 respectively, the pedal place is connected with Flexible Safety band 12 below in two vertical ladder bodies 1, below two working plates, 2 ends symmetry be fixedly connected with hanger 3, be connected with the anti-side pipe 4 that stands upside down by two hangers 3.
The left and right sides of described two working plates 2 is equipped with anti-side handstand pipe 4.
Described hanger 3 is a corner strap, and the one side of corner strap offers through hole 31, through hole 31 be used for screw with hanger 3 be fixed on working plate 2 below; Offer axis hole 32 on the perpendicular one side of hanger 3 and working plate 2, the upper end of anti-side handstand pipe 4 offers connecting hole 41, screw rod 5 passes the axis hole 32 of two hangers 3 and the connecting hole 41 of anti-side handstand pipe 4, will prevent that side handstand pipe 4 is movably connected between two hangers 3.
The slide outside of described anti-side handstand pipe 4 is combined with regulating sleeve 6, the regulating sleeve 6 outside left and right sides are fixedly connected with a connector 61 respectively, connector 61 is provided with spring connecting hole 611, spring 62 is connected with regulating sleeve 6 by spring connecting hole 611, the other end of spring 62 is connected with connecting rod 63, and the other end of connecting rod 63 flexibly connects by the middle lower end of universal base 64 with vertical ladder body 1 side; The bottom of described universal base 64 is fixedly connected with screw rod 641, and screw rod 641 passes pad 642, vertical ladder body 1 side and pad 643 successively, and is fastening by nut 644; Offer the connecting rod link slot 645 of connecting rod 63 on the body of universal base 64, screw rod 646 passes the sidewall of connecting rod link slot 645 and the through hole of connecting rod 63 lower ends successively under the connecting rod, and is fastening by nut 647.
Regulating sleeve 6 on the described anti-side handstand pipe 4 is connected with lock sleeve 7 by the external screw thread of lower end, the lower end of lock sleeve 7 is enclosed within the outside of anti-side handstand pipe 4, lock sleeve 7 endoporus bottoms are the up big and down small conical surface 71, be provided with split ring snap ring 72 on the position of the conical surface 71, split ring snap ring 72 is enclosed within the outside of anti-side handstand pipe 4; Lock sleeve 7 is used for regulating sleeve 6 is fixed on the outside of anti-side handstand pipe 4.
The cross section semicircular in shape of described split ring snap ring 72, semicircular straight flange cooperates with the outside of anti-side handstand pipe 4.
The diameter of described lock sleeve 7 bottom endoporus is provided with open slot 73, and open slot 73 is used for fitting opening spring arch clasp 72.
The slides within of described anti-side handstand pipe 4 lower ends is combined with extension bar 9, the lower end of anti-side handstand pipe 4 is connected with second lock sleeve 8 by external screw thread, second lock sleeve, 8 lower ends are enclosed within the outside of extension bar 9, second lock sleeve, 8 endoporus bottoms are the up big and down small conical surface 81, be provided with split ring snap ring 82 on the position of the conical surface 81, split ring snap ring 82 is enclosed within the outside of extension bar 9; Second lock sleeve 8 is used for extension bar 9 is fixed on anti-side handstand pipe 4.
Claims (8)
1, a kind of side-tilting prevention trestle ladder, comprise by hinge flexibly connect by two vertical ladder bodies (1), the top of two vertical ladder bodies (1) is fixedly connected with working plate (2) respectively, pedal place, middle below at two vertical ladder bodies (1) is connected with Flexible Safety band (12), it is characterized in that: below two working plates (2) end symmetry be fixedly connected with hanger (3), be connected with the anti-side pipe (4) that stands upside down by two hangers (3).
2, side-tilting prevention trestle ladder according to claim 1 is characterized in that: the left and right sides of described two working plates (2) is equipped with anti-side handstand pipe (4).
3, side-tilting prevention trestle ladder according to claim 1 is characterized in that: described hanger (3) is a corner strap, and the one side of corner strap offers through hole (31), through hole (31) be used for screw with hanger (3) be fixed on working plate (2) below; Offer axis hole (32) on the perpendicular one side of hanger (3) and working plate (2), the upper end of anti-side handstand pipe (4) offers connecting hole (41), screw rod (5) passes the axis hole (32) of two hangers (3) and the connecting hole (41) of anti-side handstand pipe (4), will prevent that side handstand pipe (4) is movably connected between two hangers (3).
4, side-tilting prevention trestle ladder according to claim 1, it is characterized in that: the slide outside of described anti-side handstand pipe (4) is combined with regulating sleeve (6), the outside left and right sides of regulating sleeve (6) is fixedly connected with a connector (61) respectively, connector (61) is provided with spring connecting hole (611), spring (62) is connected with regulating sleeve (6) by spring connecting hole (611), the other end of spring (62) is connected with connecting rod (63), and the other end of connecting rod (63) flexibly connects by the middle lower end of universal base (64) with vertical ladder body (1) side; The bottom of described universal base (64) is fixedly connected with screw rod (641), and screw rod (641) passes pad (642), vertical ladder body (1) side and pad (643) successively, and is fastening by nut (644); Offer the connecting rod link slot (645) of connecting rod (63) on the body of universal base (64), screw rod under the connecting rod (646) passes the sidewall of connecting rod link slot (645) and the through hole of connecting rod (63) lower end successively, and is fastening by nut (647).
5, side-tilting prevention trestle ladder according to claim 4, it is characterized in that: the regulating sleeve (6) on the described anti-side handstand pipe (4) is connected with lock sleeve (7) by the external screw thread of lower end, the lower end of lock sleeve (7) is enclosed within the outside of anti-side handstand pipe (4), lock sleeve (7) endoporus bottom is the up big and down small conical surface (71), be provided with split ring snap ring (72) on the position of the conical surface (71), split ring snap ring (72) is enclosed within the outside of anti-side handstand pipe (4); Lock sleeve (7) is used for regulating sleeve (6) is fixed on the outside of anti-side handstand pipe (4).
6, side-tilting prevention trestle ladder according to claim 5 is characterized in that: the cross section semicircular in shape of described split ring snap ring (72), semicircular straight flange cooperates with the outside of anti-side handstand pipe (4).
7, side-tilting prevention trestle ladder according to claim 5 is characterized in that: the diameter of described lock sleeve (7) bottom endoporus is provided with open slot (73), and open slot (73) is used for fitting opening spring arch clasp (72).
8, side-tilting prevention trestle ladder according to claim 1, it is characterized in that: the slides within of described anti-side handstand pipe (4) lower end is combined with extension bar (9), the lower end of anti-side handstand pipe (4) is connected with second lock sleeve (8) by external screw thread, second lock sleeve (8) lower end is enclosed within the outside of extension bar (9), second lock sleeve (8) endoporus bottom is the up big and down small conical surface (81), be provided with split ring snap ring (82) on the position of the conical surface (81), split ring snap ring (82) is enclosed within the outside of extension bar (9); Second lock sleeve (8) is used for extension bar (9) is fixed on anti-side handstand pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102329925A CN101392628B (en) | 2008-11-04 | 2008-11-04 | Side-tilting prevention trestle ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102329925A CN101392628B (en) | 2008-11-04 | 2008-11-04 | Side-tilting prevention trestle ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101392628A true CN101392628A (en) | 2009-03-25 |
| CN101392628B CN101392628B (en) | 2011-01-12 |
Family
ID=40493117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102329925A Expired - Fee Related CN101392628B (en) | 2008-11-04 | 2008-11-04 | Side-tilting prevention trestle ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101392628B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854158A (en) * | 2019-03-06 | 2019-06-07 | 温州芳景园林建设有限公司 | A kind of ladder for gardens pruning plant leaf |
| CN110159178A (en) * | 2019-06-18 | 2019-08-23 | 广西电网有限责任公司贵港供电局 | A kind of power grid capital construction anti-dumping a homogeneous example showing an inverse connection between the middle term and the major term ladder |
| CN114080935A (en) * | 2021-11-20 | 2022-02-25 | 吴磊 | Frame is planted to plastics convenient to assembly and disassembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761801Y (en) * | 2004-12-07 | 2006-03-01 | 张阳 | Folding herringbone ladder |
| CN2830626Y (en) * | 2005-08-22 | 2006-10-25 | 陈靖华 | Self-locking safety A-ladder |
| CN2830625Y (en) * | 2005-11-16 | 2006-10-25 | 刘明亮 | Liftable safety ladder |
| CN2859178Y (en) * | 2006-01-26 | 2007-01-17 | 陈庆元 | Trivets |
| CN201288495Y (en) * | 2008-11-04 | 2009-08-12 | 来旭 | Herringbone ladder preventing falling from one side |
-
2008
- 2008-11-04 CN CN2008102329925A patent/CN101392628B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854158A (en) * | 2019-03-06 | 2019-06-07 | 温州芳景园林建设有限公司 | A kind of ladder for gardens pruning plant leaf |
| CN110159178A (en) * | 2019-06-18 | 2019-08-23 | 广西电网有限责任公司贵港供电局 | A kind of power grid capital construction anti-dumping a homogeneous example showing an inverse connection between the middle term and the major term ladder |
| CN110159178B (en) * | 2019-06-18 | 2023-10-20 | 广西电网有限责任公司贵港供电局 | Anti-toppling ladder for power grid infrastructure |
| CN114080935A (en) * | 2021-11-20 | 2022-02-25 | 吴磊 | Frame is planted to plastics convenient to assembly and disassembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101392628B (en) | 2011-01-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20111104 |