CN201288495Y - Herringbone ladder preventing falling from one side - Google Patents
Herringbone ladder preventing falling from one side Download PDFInfo
- Publication number
- CN201288495Y CN201288495Y CNU2008201004635U CN200820100463U CN201288495Y CN 201288495 Y CN201288495 Y CN 201288495Y CN U2008201004635 U CNU2008201004635 U CN U2008201004635U CN 200820100463 U CN200820100463 U CN 200820100463U CN 201288495 Y CN201288495 Y CN 201288495Y
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- pipe
- handstand
- lock sleeve
- outside
- connecting rod
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Abstract
The utility model discloses a herringbone ladder for preventing side collapse, including two ladders connected with each other movably through a hinge, the top end of the two ladders is separately fixedly connected with a working plate, the middle lower pedal of the two ladders is connected with a flexible safety belt, the lower of the two working plate is connected with lifting eyes fixedly and symmetrically, and with a vertical tube for preventing side collapse through the two lifting eyes. The beneficial effects of the utility model is that it is capable of preventing operator barycenter from side departure when working, thus the ladder tilts sideward to cause personnel casualty, thereby the utility model improves the support stability of the herringbone ladder effectively.
Description
Technical field
The utility model relates to a kind of free-standing ladder, particularly a kind of side-tilting prevention trestle ladder.
Background technology
Though present double ladder 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 to the side, cause casualties.
Summary of the invention
The purpose of this utility model 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 utility model 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 the utility model side-tilting prevention trestle ladder 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 utility model;
Fig. 2 is the utility model Lifting Lug Structure schematic diagram;
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 utility model and hanger and regulating sleeve;
Fig. 5 is the structural representation of the utility model split ring snap ring;
Fig. 6 is the sectional view of B-B among Fig. 5;
Fig. 7 is the utility model lock sleeve bottom surface structural representation;
Fig. 8 structural representation that to be the utility model universal base 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 utility model second lock sleeve is managed the structural representation that is connected with extension bar with anti-side handstand.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, 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 |
|---|---|---|---|
| CNU2008201004635U CN201288495Y (en) | 2008-11-04 | 2008-11-04 | Herringbone ladder preventing falling from one side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201004635U CN201288495Y (en) | 2008-11-04 | 2008-11-04 | Herringbone ladder preventing falling from one side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288495Y true CN201288495Y (en) | 2009-08-12 |
Family
ID=40980174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201004635U Expired - Fee Related CN201288495Y (en) | 2008-11-04 | 2008-11-04 | Herringbone ladder preventing falling from one side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288495Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392628B (en) * | 2008-11-04 | 2011-01-12 | 来旭 | Side-tilting prevention trestle ladder |
-
2008
- 2008-11-04 CN CNU2008201004635U patent/CN201288495Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392628B (en) * | 2008-11-04 | 2011-01-12 | 来旭 | Side-tilting prevention trestle ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20101104 |