CN110259369A - A kind of double ladder - Google Patents
A kind of double ladder Download PDFInfo
- Publication number
- CN110259369A CN110259369A CN201910703936.3A CN201910703936A CN110259369A CN 110259369 A CN110259369 A CN 110259369A CN 201910703936 A CN201910703936 A CN 201910703936A CN 110259369 A CN110259369 A CN 110259369A
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- Prior art keywords
- ladder
- double ladder
- holding tank
- gear
- double
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- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
This application provides a kind of double ladders, comprising: supporting mechanism；Supporting mechanism includes: extension board, bottom plate, torsional spring, gear, compression plate and screw rod；Bottom plate is set to the ladder bottom of double ladder, holding tank is provided in bottom plate, for placing extension board；Gear and torsional spring are provided in holding tank；The first end of torsional spring is fixedly connected with gear, and second end is fixedly connected with the inner wall of holding tank；The shaft core position of gear is provided with threaded hole；Threaded hole is threadedly coupled with the second end of screw rod, and the first end of screw rod runs through the bottom interior wall of holding tank and extends to outside the bottom of holding tank, and is fixedly connected with compression plate；Extension board is fixed with rack gear far from the first end that holding tank exports, and rack and pinion engages.The application passes through the supporting mechanism that double ladder side is arranged in, and provides support effect for the side of double ladder, solves the technical issues of existing double ladder is easy to happen sideways when in use.
Description
Technical field
This application involves machining tools art more particularly to a kind of double ladders.
Background technique
Double ladder is one kind of ladder, because of it in use, the ladder bars of front and back and ground constitute an isosceles triangle, has been seen
Come as " people " word, thus its image is known as " double ladder ".Double ladder can generally not need special messenger's support when in use,
But there is no safeguard procedures for the double ladder after being unfolded, and existing double ladder is caused to be easy to happen the skill of sideways when in use
Art problem.
Summary of the invention
This application discloses a kind of double ladders, are easy to happen sideways when in use for solving existing double ladder
Technical problem.
In view of this, this application provides a kind of double ladders, comprising: supporting mechanism；
The supporting mechanism includes: extension board, bottom plate, torsional spring, gear, compression plate and screw rod；
The bottom plate is set to the ladder bottom of the double ladder, holding tank is provided in the bottom plate, for placing
State extension board；
The gear and the torsional spring are provided in the holding tank；
The first end of the torsional spring is fixedly connected with the gear, and second end is fixedly connected with the inner wall of the holding tank；
The shaft core position of the gear is provided with threaded hole；
The threaded hole is threadedly coupled with the second end of the screw rod, and the first end of the screw rod runs through the bottom of holding tank
Inner wall simultaneously extends to outside the bottom of holding tank, and is fixedly connected with the compression plate；
The extension board is fixed with rack gear far from the first end that the holding tank exports, and the rack gear is nibbled with the gear
It closes.
Optionally, further includes: sliding sleeve, first connecting rod and sliding sleeve limiting component；
The sliding sleeve and the sliding sleeve limiting component are all set on the ladder of the double ladder；
The first end of the first connecting rod and the extension board close to the outlet of the holding tank first end it is hinged,
Two ends and the sliding sleeve are hinged.
Optionally, sliding sleeve limiting component includes: mounting groove, compressed spring and limited block；
The first end of the compressed spring is fixedly connected with the inner wall of the mounting groove, and second end is fixed with the limited block
Connection.
Optionally, further includes: compression board slot；
The compression board slot is set between the holding tank and the compression plate, and the size of the compression board slot and institute
The size for stating compression plate matches.
Optionally, the two sides of each ladder bottom be provided with one group described in supporting mechanism.
Optionally, further includes: ladder strengthening mechanism；
The ladder strengthening mechanism includes: second connecting rod and rectangular channel；
The rectangular channel is arranged on the first ladder of the double ladder；
The first end of the second connecting rod is hinged on the second ladder, and second end is flexibly connected with the rectangular channel.
Optionally, further includes: card slot, bayonet lock and sucker；
The bayonet lock and the sucker are separately positioned on the both ends of the rectangular channel；
The second end of the card slot setting and the second connecting rod, is connected with the bayonet lock.
Optionally, when the double ladder is in unfolded state, the second end of the second connecting rod by the card slot and
The bayonet lock is fitted and connected；
When the double ladder in the closure state, the second end of the second connecting rod and the sucker are fitted and connected.
Optionally, when the double ladder in the closure state, the second end of the second connecting rod by the card slot and
The bayonet lock is fitted and connected；
When the double ladder is in unfolded state, the second end of the second connecting rod and the sucker are fitted and connected.
Optionally, further includes: multiple anti-slip protrusions；
The anti-slip protrusion is arranged on the pedal of the double ladder.
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
This application provides a kind of double ladders, comprising: supporting mechanism；The supporting mechanism includes: extension board, bottom plate, torsion
Spring, gear, compression plate and screw rod；The bottom plate is set to the ladder bottom of the double ladder, is provided with receiving in the bottom plate
Slot, for placing the extension board；The gear and the torsional spring are provided in the holding tank；The first end of the torsional spring with
The gear is fixedly connected, and second end is fixedly connected with the inner wall of the holding tank；The shaft core position of the gear is provided with spiral shell
Pit；The threaded hole is threadedly coupled with the second end of the screw rod, and the first end of the screw rod is in the bottom of holding tank
Wall simultaneously extends to outside the bottom of holding tank, and is fixedly connected with the compression plate；The extension board is exported far from the holding tank
First end be fixed with rack gear, and the rack gear is engaged with the gear.
The application passes through the supporting mechanism that double ladder side is arranged in, and when using expansion, compression plate is by ground face contact, pressure
Contracting plate drives screw rod mobile and then gear is driven to rotate during being extruded, and is herringbone so that extension board is released holding tank
The side of ladder provides support effect, solves the technical issues of existing double ladder is easy to happen sideways when in use.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is structural schematic diagram of the supporting mechanism in a kind of double ladder provided by the present application in first state；
Fig. 2 is structural schematic diagram of the supporting mechanism in a kind of double ladder provided by the present application in the second state；
Fig. 3 is a kind of overall structure diagram of double ladder provided by the present application；
Fig. 4 is the structural schematic diagram of the region part A in a kind of double ladder provided by the present application.
Specific embodiment
The embodiment of the present application discloses a kind of double ladder, is easy to happen when in use laterally for solving existing double ladder
The technical issues of toppling over.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describe the application and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can
To be to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in this application can be understood with concrete condition.
A kind of double ladder provided in the embodiment of the present application referring to FIG. 1 to FIG. 4, comprising: supporting mechanism；
Supporting mechanism includes: extension board 13, bottom plate 3, torsional spring 17, gear 10, compression plate and screw rod 8；
Bottom plate 3 is set to the ladder bottom of double ladder, holding tank 7 is provided in bottom plate 3, for placing extension board 13；
Gear 10 and torsional spring 17 are provided in holding tank 7；
The first end of torsional spring 17 is fixedly connected with gear 10, and second end is fixedly connected with the inner wall of holding tank 7；
The shaft core position of gear 10 is provided with threaded hole；
Threaded hole is threadedly coupled with the second end of screw rod 8, and the first end of screw rod 8 runs through the bottom interior wall of holding tank 7 and prolongs
Outside the bottom for extending to holding tank 7, and it is fixedly connected with compression plate；
Extension board 13 is fixed with rack gear 12 far from the first end that holding tank 7 exports, and rack gear 12 is engaged with gear 10.
More specifically, the foot of ladder portion of double ladder is arranged in the bottom of the bottom plate 3 of the present embodiment, the two sides of bottom plate 3 are opened up
There is holding tank 7, gear 10 is rotatably connected in the bottom interior wall of holding tank 7, screw rod 8 is threaded on gear 10, screw rod 8
Bottom runs through the bottom interior wall of holding tank 7 and extends to the bottom part down of holding tank 7, and the bottom of screw rod 8 is fixedly connected with compression
Plate, the top of compression plate and the top inner wall of holding tank 7 are slidably connected, and are fixedly connected with gear 10 on gear 10, on gear 10
It is engaged with rack gear 12, the side of rack gear 12 is fixedly connected with extension board 13, and screw rod 8 can be made to be moved by compression plate, by
Screw rod 8 drives gear 10 to rotate, to pass through the interaction of gear 10 and rack gear 12, extension board 13 is released holding tank 7, is increased
Add and contact area of ground, increase overall stability prevent from toppling over, accident occur.
When recycling double ladder, when losing the support force from ground due to compression plate, gear 10 can be in the work of torsional spring 17
It is firmly lower to be rotated toward opposite direction, so that compression sheet reset, while passing through the transmission effect of gear 10 and rack gear 12, realizing will extend
Plate 13 is recovered in holding tank 7.
Further, further includes: 4 limiting component of sliding sleeve 4, first connecting rod 20 and sliding sleeve；
Sliding sleeve 4 and 4 limiting component of sliding sleeve are all set on the ladder of double ladder；
The first end of first connecting rod 20 and extension board 13 close to the outlet of holding tank 7 first end it is hinged, second end with
Sliding sleeve 4 is hinged.
Further, 4 limiting component of sliding sleeve includes: mounting groove 14, compressed spring 16 and limited block 15；
The first end of compressed spring 16 is fixedly connected with the inner wall of mounting groove 14, and second end is fixedly connected with limited block 15.
More specifically, the first ladder 1 of double ladder and the upper of the second ladder 2 offer mounting groove 14, mounting groove 14
Open end slidably connects limited block 15, one end of compressed spring 16 be fixedly connected with the side inner wall of mounting groove 14 other end with
The bottom of limited block 15 connects, and one end of first connecting rod 20 and the hinged other end of sliding sleeve 4 and extension board 13 are exported close to holding tank 7
One end it is hinged, by the way that limited block 15 is arranged, sliding sleeve 4 can be driven to be moved down when extension board 13 is mobile, utilize limited block
15 can limit the sliding sleeve 4 after moving down, and keep extension board 13 more firm.
Further, further includes: compression board slot 6；
Compression board slot 6 is set between holding tank 7 and compression plate, and compresses the size phase of the size and compression plate of board slot 6
Matching.
Further, the two sides of each ladder bottom are provided with one group of supporting mechanism.
Further, further includes: ladder strengthening mechanism；
Ladder strengthening mechanism includes: second connecting rod 18 and rectangular channel 19；
Rectangular channel 19 is arranged on the first ladder 1 of double ladder；
The first end of second connecting rod 18 is hinged on the second ladder 2, and second end is flexibly connected with rectangular channel 19.
Further, further includes: card slot, bayonet lock 21 and sucker 23；
Bayonet lock 21 and sucker 23 are separately positioned on the both ends of rectangular channel 19；
The second end of card slot setting and second connecting rod 18, is connected with bayonet lock 21.
Further, when double ladder is in unfolded state, the second end of second connecting rod 18 is pasted by card slot and bayonet lock 21
Close connection；
When double ladder in the closure state, the second end and sucker 23 of second connecting rod 18 are fitted and connected.
Further, when double ladder in the closure state, the second end of second connecting rod 18 is pasted by card slot and bayonet lock 21
Close connection；
When double ladder is in unfolded state, the second end and sucker 23 of second connecting rod 18 are fitted and connected.
More specifically, the side of the first ladder 1 offers the rectangular channel 19 of rectangle, the first end of second connecting rod 18 is hinged on
On second ladder 2, and the second end of second connecting rod 18 is extended in rectangular channel 19 and is slided with the side inner wall of rectangular channel 19 and connects
It connects, and by sucker 23 and bayonet lock 21, second connecting rod 18 can be fixed, played to the first ladder 1 and the second ladder 2
Supporting role keeps whole ladder more stable.
Further, further includes: multiple anti-slip protrusions；
Anti-slip protrusion is arranged on the pedal 5 of double ladder.
It should be noted that being equidistantly fixedly connected with multiple anti-skidding salient points 22 on pedal 5, anti-skidding salient point 22 is set, it can
To prevent people's sole when ascending a height from skidding, increase safety.
More specifically, the use principle of double ladder provided in this embodiment specifically includes: in use, first with manpower the
One ladder 1 and the second ladder 2 are opened, and second connecting rod 18 is then rotated down, and second connecting rod 18 drives second connecting rod 18 in rectangle
Slide downward in slot 19, sucker 23 is detached from the limit to second connecting rod 18 at this time, when the first ladder 1 and the second ladder 2 are beaten completely
When opening, second connecting rod 18 just slides into the bottom of rectangular channel 19, and bayonet lock 21 is mutually clamped with card slot at this time, solid to current location
It is fixed, the stability of the first ladder 1 and the second ladder 2 can be increased in this way, can be effectively prevented and topple over, when the first ladder 1 and the
When the top of two ladders 2 contacts ground, compression plate will drive screw rod 8 and move up, and then compress torsional spring 17, since screw rod 8 moves
It is dynamic, it will drive gear 10 and rotated, the rotation band carry-over bar 12 of gear 10 is moved, and then pushes extension board 13 to extension
It stretches, increase and contact area of ground keep ladder more steady, and extension board 13 will drive the rotation of first connecting rod 20 while mobile, in turn
It drives sliding sleeve 4 to move down, will push limited block 15 at this time and torsional spring 17 is inwardly compressed, when sliding sleeve 4 is displaced downwardly under limited block 15
Fang Shi, under the action of torsional spring 17, limited block 15 restores origin-location, and anti-anti-skid sheath 4 moves up, and people can be by stepping at this time
Plate 5 is climbed, and anti-skidding salient point 22 is arranged on pedal 5, can prevent people's foot from skidding, and increases safety, after construction,
By lower position block 15, ladder is lifted, under the action of the reseting elasticity of compressed spring 16, screw rod 8 can be moved down, and then driven and prolonged
Plate 13 is stretched to be recycled, at this time second connecting rod 18 also can upward sliding, when second connecting rod 18 is sucked again in sucker 23, first ladder
Frame 1 and the folding of the second ladder 2 finish, convenient and practical.
A kind of double ladder provided herein is described in detail above, for the general technology people of this field
Member, according to the thought of the embodiment of the present application, there will be changes in the specific implementation manner and application range, to sum up, this theory
Bright book content should not be construed as the limitation to the application.
Claims (10)
1. a kind of double ladder characterized by comprising supporting mechanism；
The supporting mechanism includes: extension board, bottom plate, torsional spring, gear, compression plate and screw rod；
The bottom plate is set to the ladder bottom of the double ladder, is provided with holding tank in the bottom plate, for placing described prolong
Stretch plate；
The gear and the torsional spring are provided in the holding tank；
The first end of the torsional spring is fixedly connected with the gear, and second end is fixedly connected with the inner wall of the holding tank；
The shaft core position of the gear is provided with threaded hole；
The threaded hole be threadedly coupled with the second end of the screw rod, the first end of the screw rod is in the bottom of holding tank
Wall simultaneously extends to outside the bottom of holding tank, and is fixedly connected with the compression plate；
The extension board is fixed with rack gear far from the first end that the holding tank exports, and the rack gear is engaged with the gear.
2. double ladder according to claim 1, which is characterized in that further include: sliding sleeve, first connecting rod and sliding sleeve limiting section
Part；
The sliding sleeve and the sliding sleeve limiting component are all set on the ladder of the double ladder；
The first end of the first connecting rod is with the extension board close to hinged, the second end of the first end of the outlet of the holding tank
It is hinged with the sliding sleeve.
3. double ladder according to claim 2, which is characterized in that sliding sleeve limiting component include: mounting groove, compressed spring and
Limited block；
The first end of the compressed spring is fixedly connected with the inner wall of the mounting groove, second end and the fixed company of the limited block
It connects.
4. double ladder according to claim 1, which is characterized in that further include: compression board slot；
The compression board slot is set between the holding tank and the compression plate, and the size and the pressure of the compression board slot
The size of contracting plate matches.
5. double ladder according to any one of claims 1 to 4, which is characterized in that the two sides of each ladder bottom are equal
Supporting mechanism described in being provided with one group.
6. double ladder according to claim 1, which is characterized in that further include: ladder strengthening mechanism；
The ladder strengthening mechanism includes: second connecting rod and rectangular channel；
The rectangular channel is arranged on the first ladder of the double ladder；
The first end of the second connecting rod is hinged on the second ladder, and second end is flexibly connected with the rectangular channel.
7. double ladder according to claim 6, which is characterized in that further include: card slot, bayonet lock and sucker；
The bayonet lock and the sucker are separately positioned on the both ends of the rectangular channel；
The second end of the card slot setting and the second connecting rod, is connected with the bayonet lock.
8. double ladder according to claim 6, which is characterized in that when the double ladder is in unfolded state, described
The second end of two connecting rods is fitted and connected by the card slot and the bayonet lock；
When the double ladder in the closure state, the second end of the second connecting rod and the sucker are fitted and connected.
9. double ladder according to claim 6, which is characterized in that when the double ladder in the closure state, described
The second end of two connecting rods is fitted and connected by the card slot and the bayonet lock；
When the double ladder is in unfolded state, the second end of the second connecting rod and the sucker are fitted and connected.
10. double ladder according to claim 1, which is characterized in that further include: multiple anti-slip protrusions；
The anti-slip protrusion is arranged on the pedal of the double ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703936.3A CN110259369B (en) | 2019-07-31 | 2019-07-31 | Herringbone ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703936.3A CN110259369B (en) | 2019-07-31 | 2019-07-31 | Herringbone ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259369A true CN110259369A (en) | 2019-09-20 |
| CN110259369B CN110259369B (en) | 2024-05-28 |
Family
ID=67912577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910703936.3A Active CN110259369B (en) | 2019-07-31 | 2019-07-31 | Herringbone ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259369B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333941A (en) * | 2020-10-26 | 2021-02-05 | 吴双 | Communication terminal and communication method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205422502U (en) * | 2016-03-29 | 2016-08-03 | 新都区大丰鹏宇机械厂 | Special rack formula antiskid double ladder of transformer |
| CN106121503A (en) * | 2016-06-23 | 2016-11-16 | 桐城市丽琼金属制品有限公司 | A kind of overturning-preventing double ladder |
| CN108952557A (en) * | 2018-06-27 | 2018-12-07 | 莆田市荔城区湘儿贸易有限公司 | A kind of wall plastering dedicated finishing ramp mobile with reacting force of supporting |
| CN211422507U (en) * | 2019-07-31 | 2020-09-04 | 广东电网有限责任公司 | Herringbone ladder |
-
2019
- 2019-07-31 CN CN201910703936.3A patent/CN110259369B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205422502U (en) * | 2016-03-29 | 2016-08-03 | 新都区大丰鹏宇机械厂 | Special rack formula antiskid double ladder of transformer |
| CN106121503A (en) * | 2016-06-23 | 2016-11-16 | 桐城市丽琼金属制品有限公司 | A kind of overturning-preventing double ladder |
| CN108952557A (en) * | 2018-06-27 | 2018-12-07 | 莆田市荔城区湘儿贸易有限公司 | A kind of wall plastering dedicated finishing ramp mobile with reacting force of supporting |
| CN211422507U (en) * | 2019-07-31 | 2020-09-04 | 广东电网有限责任公司 | Herringbone ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333941A (en) * | 2020-10-26 | 2021-02-05 | 吴双 | Communication terminal and communication method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110259369B (en) | 2024-05-28 |
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