CN207033322U - A kind of anti-rollover double ladder - Google Patents
A kind of anti-rollover double ladder Download PDFInfo
- Publication number
- CN207033322U CN207033322U CN201720989241.2U CN201720989241U CN207033322U CN 207033322 U CN207033322 U CN 207033322U CN 201720989241 U CN201720989241 U CN 201720989241U CN 207033322 U CN207033322 U CN 207033322U
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- China
- Prior art keywords
- support leg
- connection
- rear support
- expansion link
- active
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- 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.)
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Abstract
The embodiment of the present application discloses a kind of anti-rollover double ladder, including：Top loading plate, rear support leg, front support leg, head rod and the second connecting rod；The first active connection is provided with the top of rear support leg, rear support leg is rotatablely connected by the first active connection and top loading plate；The first adjusting rod is rotatably connected on rear support leg, the first adjusting rod end is rotatably connected to the second adjusting rod, and the second adjusting rod end is rotatablely connected with connection sheet；The first expansion link is rotatably connected on rear support leg, the second expansion link to be socket-connected with the second expansion link is rotatably connected on another rear support leg, head rod and the second connecting rod are rotationally connected between rear support leg and front support leg, and front support leg is provided with pedal of ascending a height；Angle between adjustable rear support leg, increases the angle between rear support leg and ground, effectively eliminates the rollover hidden danger of double ladder in use.
Description
Technical field
The application is related to ladder technical field, more particularly to a kind of anti-rollover double ladder.
Background technology
Double ladder is a kind of ascending tool being frequently used in construction operation.Double ladder when in use, front and rear ladder
Bar and ground form an isosceles triangle, it appears that are visually referred to as double ladder as a herringbone, thus it.The people of early stage
Word ladder is usually what timber made, now more to be made using aluminum alloy materials with the development of metal industry.Aluminium alloy herringbone ladder
It is attractive in appearance with light, it is durable the characteristics of, and cost is not high, therefore is widely used.
Referring to Fig. 1, existing double ladder generally includes 100, two, the top plate back leg 300 of foreleg 200, two and multiple
Pedal 400.Top plate 100 includes the first connecting plate 101 and the second connecting plate 102, the first connecting plate 101 and the second connecting plate 102
Between be rotatablely connected by loose-leaf.Two forelegs 200 are set in parallel in the bottom of the first connecting plate 101.Two back legs 300 are parallel
It is arranged at the bottom of the second connecting plate 102.The spacing of two back legs 300 is equal to the spacing of two forelegs 200.Pedal 400 is two
Between individual foreleg 200, and parallel interval is set between two back legs 300.Pedal 400 hangs down with foreleg 200 and back leg 300
Directly.User can adjust the angle between foreleg 200 and back leg 300 when using the double ladder, pushes pedals 400 ascend a height to
Different height, to adapt to different job requirements.
But in above-mentioned existing double ladder, because two forelegs, 200, two back legs 300 be arranged in parallel respectively, therefore,
Operating personnel easily causes the rollover of double ladder in operation on ladder, though there are some double ladders to do one for the problem at present
It is a little to improve, such as set the spacing of two back legs 300 to be more than the spacing of two forelegs 200, but the effect of anti-rollover is limited, still deposits
In certain potential safety hazard.
Utility model content
The application provides a kind of anti-rollover double ladder, is asked with solve that existing double ladder easily turns on one's side in use
Topic.
The embodiment of the present application provides a kind of anti-rollover double ladder, including：Top loading plate, rear support leg, front support leg,
One connecting rod and the second connecting rod；
The top loading plate includes preceding loading plate and the rear loading plate with the preceding loading plate rotation connection, is held after described
Support plate inwall is provided with connection sheet；
The quantity of the rear support leg is two, is relatively arranged on the bottom of the rear loading plate；The rear support leg top
Portion is provided with the first active connection, and the rear support leg is rotated by first active connection with the rear loading plate to be connected
Connect；The second active connection is provided with the inside of the rear support leg, the first tune is rotatably connected on second active connection
Pole, the first adjusting rod end are rotatably connected to the second adjusting rod, and the second adjusting rod end turns with the connection sheet
Dynamic connection；Multigroup the 3rd active connection being oppositely arranged, the 3rd active connection are provided with the inside of the rear support leg
Positioned at the bottom of second active connection；The first expansion link is rotatably connected on 3rd active connection, another
The second expansion link is rotatably connected on the 3rd active connection on rear support leg, first expansion link is flexible with described second
Bar socket-connects；
One end of the head rod and the rear support leg are rotatablely connected, one end of second connecting rod with it is described
Front support leg is rotatablely connected, and the other end of the head rod and the other end of second connecting rod are rotatablely connected；
Multiple 4th active connections are provided with the inside of the front support leg, between relative two the 4th active connections
It is provided with pedal of ascending a height.
Optionally, first active connection includes the first connection sheet and is connected with the both ends of first connection sheet
Two the second connection sheets, first connection sheet and it is described after the bottom of loading plate fix, the rear support leg is arranged at institute
Between stating two the second connection sheets, it is rotatablely connected with first active connection.
Optionally, second active connection include the 3rd connection sheet and with the 3rd connection sheet connected vertically the
Four connection sheets, the 3rd connection sheet are fixed on the inner side of the rear support leg, the 4th connection sheet and the described first regulation
Bar is rotatablely connected.
Optionally, the 3rd active connection includes the 5th connection sheet and is connected with the both ends of the 5th connection sheet
Two the 6th connection sheets, the 5th connection sheet is fixed on the inner side of the rear support leg, and first expansion link is arranged at
Between two the 6th connection sheets of the 3rd active connection on one of rear support leg, second expansion link is arranged at separately
Between two the 6th connection sheets of the 3rd active connection on one rear support leg.
Optionally, the structure of the 4th active connection is identical with second active connection, the 4th activity
One end of connector is fixed on the inside of the front support leg, and the other end is connected with the bottom of the pedal of ascending a height.
Optionally, first expansion link and second expansion link are square hollow, first expansion link
Cross-sectional area is less than the cross-sectional area of second expansion link.
From above technical scheme, a kind of anti-rollover double ladder of the embodiment of the present application offer, including：Top carries
Plate, rear support leg, front support leg, head rod and the second connecting rod；Top loading plate includes preceding loading plate and with preceding holding
The rear loading plate of support plate rotation connection, rear loading plate inwall are provided with connection sheet；The quantity of rear support leg is two, is oppositely arranged
In the bottom of rear loading plate；The first active connection is provided with the top of rear support leg, rear support leg passes through the first active connection
It is rotatablely connected with rear loading plate；The second active connection is provided with the inside of rear support leg, is rotatablely connected on the second active connection
There is the first adjusting rod, the first adjusting rod end is rotatably connected to the second adjusting rod, and the second adjusting rod end rotates with connection sheet to be connected
Connect；Multigroup the 3rd active connection being oppositely arranged is provided with the inside of rear support leg, the 3rd active connection is positioned at the second activity
The bottom of connector；The first expansion link is rotatably connected on 3rd active connection, the 3rd activity on another rear support leg
The second expansion link is rotatably connected on connector, the first expansion link socket-connects with the second expansion link；One end of head rod with
Rear support leg is rotatablely connected, and one end and the front support leg of the second connecting rod are rotatablely connected, the other end of head rod and second
The other end rotation connection of connecting rod；Multiple 4th active connections, relative two the 4th work are provided with the inside of front support leg
Pedal of ascending a height is provided between follower link；It can adjust when in use.Angle between rear support leg so that two rear support legs
Between can strut trapezoidal, increase the angle between rear support leg and ground, effectively eliminate double ladder in use
Rollover hidden danger.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of existing double ladder.
Fig. 2 is a kind of structural representation for anti-rollover double ladder that the embodiment of the present application provides.
Fig. 3 is a kind of top loading plate of anti-rollover double ladder and the connection knot of rear support leg that the embodiment of the present application provides
Structure schematic diagram.
Fig. 4 is the connection of the first expansion link and the second expansion link for a kind of anti-rollover double ladder that the embodiment of the present application provides
Structural representation.
Fig. 5 is a kind of rear support leg of anti-rollover double ladder and the connection knot of the first adjusting rod that the embodiment of the present application provides
Structure schematic diagram.
Fig. 6 is a kind of rear support leg of anti-rollover double ladder and the connection knot of the first expansion link that the embodiment of the present application provides
Structure schematic diagram.
Fig. 7 is the attachment structure of a kind of rear support leg for anti-rollover double ladder that the embodiment of the present application provides and pedal of ascending a height
Schematic diagram.
Illustrate：Loading plate at the top of 1-；2- rear support legs；3- front support legs；Loading plate before 11-；Loading plate after 12-；
13- connection sheets；The adjusting rods of 21- first；The adjusting rods of 22- second；The expansion links of 23- second；The expansion links of 24- first；25- the 3rd lives
Follower link；The active connections of 26- second；The active connections of 28- first；31- ascends a height pedal；41- head rods；42-
Two connecting rods；100- top plates；200- forelegs；300- back legs；400- pedals；The connecting plates of 101- first；The connecting plates of 102- second；
The connection sheets of 251- the 5th；The connection sheets of 252- the 6th；The connection sheets of 261- the 3rd；The connection sheets of 262- the 4th；The connection sheets of 281- first；
The connection sheets of 282- second；The active connections of 311- the 4th.
Embodiment
Fig. 1 to Fig. 7 is referred to, the utility model embodiment provides a kind of anti-rollover double ladder, including：Top loading plate 1,
Rear support leg 2, front support leg 3, the connecting rod 42 of head rod 41 and second.Wherein, top loading plate 1 is used to after connecting prop up
Support leg 2 and front support leg 3, and play a part of carrying operating personnel.
Wherein, the top loading plate 1 includes preceding loading plate 11 and the rear carrying being rotatablely connected with the preceding loading plate 11
Plate 12, the rear inwall of loading plate 12 are provided with connection sheet 13.
The quantity of the rear support leg 2 is two, is relatively arranged on the bottom of the rear loading plate 12；The rear support leg
2 tops are provided with the first active connection 28, and the rear support leg 2 passes through first active connection 28 and the rear carrying
Plate 12 is rotatablely connected, i.e. angle between two rear support legs 2 can adjust, so as to increase the outside of rear support leg 2
With the angle on ground, prevent from turning on one's side.
Specifically, first active connection 28 include the first connection sheet 281 and with first connection sheet 281
Two the second connection sheets 282 of both ends connection, first connection sheet 281 and the bottom of the rear loading plate 12 are fixed, specifically
It can be bolted to connection.The rear support leg 2 is arranged between described two second connection sheets 282, with described first
Active connection 28 is rotatablely connected, and can specifically be realized and is rotatablely connected by bearing pin.
The inner side of the rear support leg 2 is provided with the second active connection 26, the company of rotation on second active connection 26
The first adjusting rod 21 is connected to, the end of the first adjusting rod 21 is rotatably connected to the second adjusting rod 22, second adjusting rod 22
End is rotatablely connected with the connection sheet 13.
During two foldings of rear support leg 2, first adjusting rod 21 and second adjusting rod 22 produce
Raw relative rotation, first adjusting rod 21 and second adjusting rod 22 can limit the angle of two foldings of rear support leg 2
Degree.
Specifically, second active connection 26 includes the 3rd connection sheet 261 and vertical with the 3rd connection sheet 261
4th connection sheet 262 of connection, the 3rd connection sheet 261 are fixed on the inner side of the rear support leg 2, can specifically pass through spiral shell
Bolt or rivet, which are realized, to be fixed, and the 4th connection sheet 262 is rotatablely connected with first adjusting rod 21, can specifically pass through pin
Axle or bolt realize rotation connection.
The inner side of rear support leg 2 is provided with multigroup the 3rd active connection 25 being oppositely arranged, and the 3rd activity is even
Fitting 25 is located at the bottom of second active connection 26；It is flexible that first is rotatably connected on 3rd active connection 25
Bar 24, the second expansion link 23 is rotatably connected on the 3rd active connection 25 on another rear support leg 2, described first is flexible
Bar 24 socket-connects with second expansion link 23.
Specifically, the 3rd active connection 25 include the 5th connection sheet 251 and with the 5th connection sheet 251
Two the 6th connection sheets 252 of both ends connection, the 5th connection sheet 251 are fixed on the inner side of the rear support leg 2, and described the
One expansion link 24 is disposed therein between two the 6th connection sheets 252 of the 3rd active connection 25 on a rear support leg 2,
Second expansion link 23 is arranged at two the 6th connection sheets 252 of the 3rd active connection 25 on another rear support leg 2
Between.First expansion link 24 and second expansion link 23 are square hollow, first expansion link 24 it is transversal
Area is less than the cross-sectional area of second expansion link 23.
During two foldings of rear support leg 2, first expansion link 24 can with second expansion link 23
Rotate, while can be achieved between first expansion link 24 and second expansion link 23 flexible relative to the rear support leg 2.
One end of the head rod 41 is rotatablely connected with the rear support leg 2, one end of second connecting rod 42
It is rotatablely connected with the front support leg 3, the other end of the head rod 41 and the other end of second connecting rod 42 turn
Dynamic connection.
Further, the inner side of the front support leg 3 is provided with multiple 4th active connections 311, relative two the 4th
Pedal 31 of ascending a height is provided between active connection 311.Pedal 31 of ascending a height equidistantly be arranged in parallel, for being climbed for operating personnel
Step on.
Specifically, the structure of the 4th active connection 311 is identical with second active connection 26, L-shaped, institute
The inner side of front support leg 3, the bottom of the other end and the pedal 31 of ascending a height are fixed in the one end for stating the 4th active connection 311
Portion connects.The cross section of the pedal 31 of ascending a height is in N-type, described to ascend a height between pedal 31 and the 4th active connection 311
It can be bolted to connection.
A kind of material for anti-rollover double ladder that the utility model embodiment provides is metal material, or stainless steel and aluminium
Alloy.
A kind of application method for anti-rollover double ladder that the utility model embodiment provides is as follows：
First by the rear support leg 2 and the front support leg 3 by double ladder it is vertical live, then adjust rear support leg 2 with
Angle between front support leg 3.
Then front support leg 3 after pulling two laterally, the angle after increase two between front support leg 3, until described
Angle between first adjusting rod 21 and second adjusting rod 22 is in 180 degree.
Now, between the outside and ground of the rear support leg 2 in obtuse angle, two rear support legs 2 carry with top
Formed between plate 1 and ground it is trapezoidal, operating personnel can be climbed along the pedal 3 of ascending a height to eminence carry out operation, can effectively disappear
Except the rollover hidden danger of double ladder in use.
When the utility model embodiment provide a kind of anti-rollover double ladder use after, can by rear support leg 2 with
Front support leg 3 folds, and by two doublings of front support leg 3, so as to realize folding for anti-rollover double ladder.
From above technical scheme, a kind of anti-rollover double ladder provided by the utility model, including：Top loading plate 1,
Rear support leg 2, front support leg 3, the connecting rod 42 of head rod 41 and second；Top loading plate 1 includes the preceding He of loading plate 11
With the rear loading plate 12 of preceding loading plate 11 rotation connection, the rear inwall of loading plate 12 is provided with connection sheet 13；The quantity of rear support leg 2
For two, the bottom of rear loading plate 12 is relatively arranged on；The top of rear support leg 2 is provided with the first active connection 28, rear support
Leg 2 is rotatablely connected by the first active connection 28 and rear loading plate 12；The inner side of rear support leg 2 is provided with the second flexible connection
Part 26, the first adjusting rod 21 is rotatably connected on the second active connection 26, the end of the first adjusting rod 21 is rotatably connected to second
Adjusting rod 22, the end of the second adjusting rod 22 are rotatablely connected with connection sheet 13；Rear support leg 2 inner side is provided with multigroup be oppositely arranged
3rd active connection 25, the 3rd active connection 25 are located at the bottom of the second active connection 26；3rd active connection 25
On be rotatably connected to the first expansion link 24, be rotatably connected to second on the 3rd active connection 25 on another rear support leg 2
Expansion link 23, the first expansion link 24 socket-connect with the second expansion link 23；One end of head rod 41 rotates with rear support leg 2 to be connected
Connect, one end and the front support leg 3 of the second connecting rod 42 are rotatablely connected, the other end of head rod 41 and the second connecting rod 42
The other end is rotatablely connected；The inner side of front support leg 3 is provided with multiple 4th active connections 311, and relative two the 4th activities are even
Pedal 31 of ascending a height is provided between fitting 311；It can adjust when in use.Angle between rear support leg 3 so that two rear supports
Trapezoidal, the angle between increase rear support leg 3 and ground can be strutted between leg 3, double ladder is effectively eliminated and is using process
In rollover hidden danger.
The application embodiment above does not form the restriction to the application protection domain.
Claims (6)
- A kind of 1. anti-rollover double ladder, it is characterised in that including：Top loading plate (1), rear support leg (2), front support leg (3), Head rod (41) and the second connecting rod (42)；The top loading plate (1) includes preceding loading plate (11) and the rear loading plate with preceding loading plate (11) rotation connection (12), described rear loading plate (12) inwall is provided with connection sheet (13)；The quantity of the rear support leg (2) is two, is relatively arranged on the bottom of the rear loading plate (12)；The rear support leg (2) top is provided with the first active connection (28), and the rear support leg (2) passes through first active connection (28) and institute State rear loading plate (12) rotation connection；The second active connection (26) is provided with the inside of the rear support leg (2), described second lives The first adjusting rod (21) is rotatably connected on follower link (26), the first adjusting rod (21) end is rotatably connected to the second tune Pole (22), the second adjusting rod (22) end are rotatablely connected with the connection sheet (13)；Set on the inside of the rear support leg (2) Multigroup the 3rd active connection (25) being oppositely arranged is equipped with, the 3rd active connection (25) connects positioned at the described second activity The bottom of fitting (26)；The first expansion link (24) is rotatably connected on 3rd active connection (25), another rear support The second expansion link (23), first expansion link (24) and institute are rotatably connected on the 3rd active connection (25) on leg (2) The second expansion link (23) is stated to socket-connect；One end of the head rod (41) is rotatablely connected with the rear support leg (2), and the one of second connecting rod (42) End is rotatablely connected with the front support leg (3), the other end of the head rod (41) and second connecting rod (42) The other end is rotatablely connected；Multiple 4th active connections (311), relative two the 4th active connections are provided with the inside of the front support leg (3) (311) pedal of ascending a height (31) is provided between.
- 2. a kind of anti-rollover double ladder as claimed in claim 1, it is characterised in that first active connection (28) includes First connection sheet (281) and two the second connection sheets (282) being connected with the both ends of first connection sheet (281) are described First connection sheet (281) and the bottom of the rear loading plate (12) are fixed, and the rear support leg (2) is arranged at described two second Between connection sheet (282), it is rotatablely connected with first active connection (28).
- 3. a kind of anti-rollover double ladder as claimed in claim 2, it is characterised in that second active connection (26) includes 3rd connection sheet (261) and with the 3rd connection sheet (261) the 4th connection sheet (262) connected vertically, it is described 3rd connection Piece (261) is fixed on the inner side of the rear support leg (2), and the 4th connection sheet (262) turns with first adjusting rod (21) Dynamic connection.
- 4. a kind of anti-rollover double ladder as claimed in claim 3, it is characterised in that the 3rd active connection (25) includes 5th connection sheet (251) and two the 6th connection sheets (252) being connected with the both ends of the 5th connection sheet (251), it is described 5th connection sheet (251) is fixed on the inner side of the rear support leg (2), after first expansion link (24) is disposed therein one Between two the 6th connection sheets (252) of the 3rd active connection (25) on supporting leg (2), second expansion link (23) sets It is placed between two the 6th connection sheets (252) of the 3rd active connection (25) on another rear support leg (2).
- 5. a kind of anti-rollover double ladder as claimed in claim 4, it is characterised in that the 4th active connection (311) Structure is identical with second active connection (26), and the preceding branch is fixed in one end of the 4th active connection (311) On the inside of support leg (3), the other end is connected with the bottom of the pedal of ascending a height (31).
- A kind of 6. anti-rollover double ladder as claimed in claim 5, it is characterised in that first expansion link (24) and described the Two expansion links (23) are square hollow, and the cross-sectional area of first expansion link (24) is less than second expansion link (23) Cross-sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720989241.2U CN207033322U (en) | 2017-08-09 | 2017-08-09 | A kind of anti-rollover double ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720989241.2U CN207033322U (en) | 2017-08-09 | 2017-08-09 | A kind of anti-rollover double ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033322U true CN207033322U (en) | 2018-02-23 |
Family
ID=61475315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720989241.2U Expired - Fee Related CN207033322U (en) | 2017-08-09 | 2017-08-09 | A kind of anti-rollover double ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033322U (en) |
-
2017
- 2017-08-09 CN CN201720989241.2U patent/CN207033322U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20190809 |