CN110344746A - A kind of convenient and fast extension ladder of operation - Google Patents
A kind of convenient and fast extension ladder of operation Download PDFInfo
- Publication number
- CN110344746A CN110344746A CN201910355201.6A CN201910355201A CN110344746A CN 110344746 A CN110344746 A CN 110344746A CN 201910355201 A CN201910355201 A CN 201910355201A CN 110344746 A CN110344746 A CN 110344746A
- Authority
- CN
- China
- Prior art keywords
- lock pin
- extension ladder
- terraced unit
- convenient
- unlocking mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/06—Securing devices or hooks for parts of extensible ladders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of convenient and fast extension ladders of operation, it is related to extension ladder technical field, solve the problems, such as that extension ladder is inconvenient prompt during retracting in the prior art, it is characterized in that: including terraced unit and lockable mechanism, lockable mechanism is fixed on terraced unit, terraced unit is equipped with pin hole, lockable mechanism includes lock pin, baffle and unlocking mechanism, lock pin is fixed on the pedal bottom surface both ends on terraced unit by baffle, lock pin is connect with barrier slides, is connected between lock pin and lock pin by the unlocking mechanism of one-hand operation；The present invention releases the lock pin at terraced unit both ends by the unlocking mechanism of one-hand operation, when so that terraced unit retracting, unlocking mechanism can be controlled on the other hand prevents terraced unit downslide is too fast to cause injury to personnel on the other hand, and relative to traditional technology, the present invention improves the convenience and safety of extension ladder.
Description
Technical field
The present invention relates to extension ladder technical field more particularly to a kind of convenient and fast extension ladders of operation.
Background technique
Currently, extension ladder both domestic and external is largely, the terraced tuple of decreasing dimensions identical by structure, between adjacent ladder member
Locking system then combined by spring and fixed pin.
China Patent Publication No. " CN105443025B " discloses a kind of flexible with automatic locking and unlocking function
Ladder, in extension ladder, successively nested multiple structures are identical along its length, terraced unit of size gradation, and any two adjacent ladder is single
In member, the terraced leg of upper ladder is separably attached by the identical locking system of structure after being socketed in the terraced leg of lower ladder, lock
Locking apparatus includes locking round head pin, locking spring piece, lockup switch pressing plate and lockup switch spring, upper ladder ladder leg inner wall
Two sides are respectively connected with locking spring piece, and locking spring piece top is fixed with locking round head pin, and locking round head pin level is successively worn
Circular hole on ladder and lower ladder side wall is crossed to stretch out, lockup switch spring pocket locking round head pin extension and connect lock
Only switch press plate, the extension ladder of the device can be realized automatic locking, unlock, but when due to device unlock, need double
Hand pins the lockup switch pressing plate of both sides ladder leg simultaneously, and then again by the supervisory terraced unit of people pressing, it is not square that there is operations
Just the problem of, therefore, we have proposed operate convenient and fast extension ladder.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing drawbacks, provide a kind of convenient and fast extension ladder of operation, pass through increasing
Add the unlocking mechanism of one-hand operation, to solve the problems, such as that extension ladder is inconvenient for operation in the prior art.
To achieve the above object, the invention provides the following technical scheme:
A kind of convenient and fast extension ladder of operation, including terraced unit and lockable mechanism, lockable mechanism are fixed on terraced unit, ladder
Unit is equipped with pin hole, and lockable mechanism includes lock pin, baffle and unlocking mechanism, and lock pin is fixed on terraced unit by baffle
On pedal bottom surface both ends on, lock pin is connect with barrier slides, passes through the solution of one-hand operation between lock pin and lock pin
Latch mechanism connection.
As a further solution of the present invention, unlocking mechanism is wire.
As a further solution of the present invention, unlocking mechanism is golden cordage.
As a further solution of the present invention, lockable mechanism further includes the winding rod for winding unlocking mechanism, winds rod
Upper end be hinged among pedal, the centre of unlocking mechanism is fixedly connected with winding rod.
As a further solution of the present invention, lock pin is located at one end in terraced unit equipped with fillet or chamfering.
As a further solution of the present invention, the centre of lock pin is equipped with the baffle for preventing lock pin to be detached from.
As a further solution of the present invention, compressed spring is equipped between lock pin and baffle.
In conclusion compared with the prior art, the invention has the following beneficial effects:
The present invention releases the lock pin at terraced unit both ends by the unlocking mechanism of one-hand operation, so that terraced unit retracts
When, can control unlocking mechanism on the other hand prevents terraced unit downslide is too fast to cause injury to personnel on the other hand, relative to traditional technology, originally
Invention improves the convenience and safety of extension ladder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for operating convenient and fast extension ladder embodiment 1.
Fig. 2 is the structural schematic diagram that the convenient and fast extension ladder embodiment 1 of operation stretches out state.
Fig. 3 is to operate convenient and fast 1 view in full section of extension ladder embodiment.
Fig. 4 is the structural schematic diagram of lock pin in the convenient and fast extension ladder of operation.
Fig. 5 is the structural schematic diagram for operating convenient and fast extension ladder embodiment 2.
Appended drawing reference: 1- ladder unit, 11- support leg, 12- pedal, 2- lockable mechanism, 21- lock pin, 22- baffle, 23-
Unlocking mechanism, 24- wind rod.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in FIG. 1 to FIG. 2, a kind of convenient and fast extension ladder of operation, including terraced unit 1 and lockable mechanism 2, terraced unit 1 are set
Have several, lockable mechanism 2 is fixed on terraced unit 1；
As shown in figure 3, terraced unit 1 includes support leg 11 and pedal 12, support leg 11 is tubular, and supervisory terraced unit 1
In support leg 11 be less than junior terraced unit 1 in support leg 11, allow supervisory support leg 11 to be set in junior
In support leg 11, the both ends of pedal 12, which are fixedly connected by welding, support leg 11, support leg 11 pedal 12 lower section and
The bottom end of support leg 11 is equipped with the pin hole for locking higher level 1；
Preferably, in the present embodiment, the bottom end of support leg 11 is fixedly connected with the fixation for reinforcing 11 intensity of support leg
Block；
Lockable mechanism 2 includes lock pin 21, the reconciliation lock machine of baffle 22 for locking supervisory terraced unit 1, lockable mechanism 2
Structure 23, as shown in Figure 3 and Figure 4, lock pin 21 are cylindrical pin, and one end of lock pin 21, which is equipped with, facilitates lock pin 21 to penetrate
The chamfering of pin hole, the centre of lock pin 21 are equipped with the baffle for preventing lock pin 21 to be detached from, and the other end of lock pin 21, which is equipped with, to be used for
The fixed pin hole of unlocking mechanism 23, there are two lock pin 21 is set, and the pin being respectively provided in the support leg 11 at terraced 1 both ends of unit
In hole；Baffle 22 is fixedly connected on the bottom surface both ends of pedal 12 by welding, and pedal 12, which is equipped with, is used for lock pin
21 pin holes passed through, baffle 22 are set on lock pin 21, and the both ends of unlocking mechanism 23 are respectively fixedly connected with 12 both ends of pedal
Lock pin 21, when pulling unlocking mechanism 23, the lock pin 21 at 12 both ends of pedal is adjacent to each other, to make lock pin 21 from branch
It is detached from pin hole on support foot 11, completion unlocking motion, in the present embodiment, unlocking mechanism 23 is wire；
Preferably, in the present embodiment, compressed spring is equipped between lock pin 21 and baffle 22, compressed spring is set in lock
On shotpin 21, lock pin 21 being pressed into the pin hole in support leg 11 when for pulling out the 1 of upper layer, completing automatic locking work.
Embodiment 2
As shown in Figure 5, a kind of convenient and fast extension ladder of operation, including terraced unit 1 and lockable mechanism 2, terraced unit 1 are equipped with number
A, lockable mechanism 2 is fixed on terraced unit 1；
Terraced unit 1 includes support leg 11 and pedal 12, and support leg 11 is tubular, and the support leg in supervisory terraced unit 1
11 are less than the support leg 11 in the terraced unit 1 of junior, and supervisory support leg 11 is allowed to be set in the support leg 11 of junior
Interior, the both ends of pedal 12, which are fixedly connected by welding, support leg 11, lower section and support leg 11 of the support leg 11 in pedal 12
Bottom end be equipped with the pin hole for locking higher level 1, the fraising for installing 2 is equipped among pedal 12；
Preferably, in the present embodiment, the gap between higher level's support leg 11 and junior's support leg 11 is smaller, so that higher level
Terraced unit 1 can not glide automatically under the effect of gravity, thus be increased to withdraw higher level's ladder unit 1 safety；
Lockable mechanism 2 includes lock pin 21, the reconciliation lock machine of baffle 22 for locking supervisory terraced unit 1, lockable mechanism 2
Structure 23, as shown in figure 3, lock pin 21 is cylindrical pin, one end of lock pin 21, which is equipped with, facilitates lock pin 21 to penetrate pin hole
Fillet, the centre of lock pin 21 are equipped with the baffle for preventing lock pin 21 to be detached from, and the other end of lock pin 21 is equipped with for solving lock machine
The fixed pin hole of structure 23, there are two lock pin 21 is set, and in the pin hole being respectively provided in the support leg 11 at terraced 1 both ends of unit；Gear
Plate 22 is fixedly connected on the bottom surface both ends of pedal 12 by welding, and pedal 12, which is equipped with, is used for what lock pin 21 passed through
Pin hole, baffle 22 are set on lock pin 21, and the both ends of unlocking mechanism 23 are respectively fixedly connected with the lock pin at 12 both ends of pedal
21, when pulling unlocking mechanism 23, the lock pin 21 at 12 both ends of pedal is adjacent to each other, to make lock pin 21 from support leg 11
On pin hole in be detached from, complete unlocking motion, in the present embodiment, unlocking mechanism 23 is cordage；
Preferably, in the present embodiment, compressed spring is equipped between lock pin 21 and baffle 22, compressed spring is set in lock
On shotpin 21, lock pin 21 being pressed into the pin hole in support leg 11 when for pulling out the terraced unit 1 on upper layer, completing automatic lock
Only work；
Preferably, lockable mechanism 2 further includes the winding rod 24 for winding unlocking mechanism 23, and the upper end of winding rod 24 is logical
It crosses in the fraising that check ring is hinged among pedal 12, the centre of unlocking mechanism 23 is fixed among winding rod 24, is made
When must wind the rotation of rod 24, unlocking mechanism 23 is driven to pull lock pin 21, is additionally provided on winding rod 24 and facilitates the winding rotation of rod 24
Handle.
In conclusion the working principle of the invention is:
When needing to retract ladder, rotation winding rod 24, the rotation of winding rod 24 pulls lock pin by unlocking mechanism 23
21 are detached from out of support leg 11, and then higher level's ladder unit 1 is pressed into junior's ladder unit 1, to complete to retract terraced unit 1
Work, withdraws terraced unit 1 by the way of pressing, and the safety during withdrawing can be improved.
It should be strongly noted that fixed extension ladder the answering for the prior art of cooperation in the application by pin and pin hole
With, the innovative point that the lockup state between terraced unit is the application is contacted by the structural mechanism of one-hand operation, it is effective
Solve the problems, such as that extension ladder is inconvenient for operation in the prior art.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, being merely for convenience of description the invention and simplifying description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Deng feature can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise
Illustrate, the meaning of " plurality " is two or more.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of convenient and fast extension ladder of operation, including terraced unit (1) and lockable mechanism (2), lockable mechanism (2) are fixed on terraced unit
(1) on, terraced unit (1) is equipped with pin hole, which is characterized in that lockable mechanism (2) includes lock pin (21), baffle (22) and unlock
Mechanism (23), lock pin (21) are fixed on pedal (2) bottom surface both ends on terraced unit (1) by baffle (22), lock pin
(21) it is slidably connected with baffle (22), passes through the unlocking mechanism (23) of one-hand operation between lock pin (21) and lock pin (21)
Connection.
2. the convenient and fast extension ladder of operation according to claim 1, which is characterized in that unlocking mechanism (23) is wire.
3. the convenient and fast extension ladder of operation according to claim 1, which is characterized in that unlocking mechanism (23) is golden cordage.
4. the convenient and fast extension ladder of operation according to claim 3, which is characterized in that lockable mechanism (2) further includes for twining
Around the winding rod (24) of unlocking mechanism (23), the upper end for winding rod (24) is hinged among pedal (12), unlocking mechanism (23)
It is intermediate to be fixedly connected with winding rod (24).
5. the convenient and fast extension ladder of operation according to claim 1, which is characterized in that lock pin (21) is located at terraced unit (1)
Interior one end is equipped with fillet or chamfering.
6. -5 any convenient and fast extension ladder of operation according to claim 1, which is characterized in that the centre of shotpin (21) is equipped with
The baffle for preventing lock pin (21) to be detached from.
7. the convenient and fast extension ladder of operation according to claim 6, which is characterized in that between lock pin (21) and baffle (22)
Equipped with compressed spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355201.6A CN110344746A (en) | 2019-04-29 | 2019-04-29 | A kind of convenient and fast extension ladder of operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355201.6A CN110344746A (en) | 2019-04-29 | 2019-04-29 | A kind of convenient and fast extension ladder of operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110344746A true CN110344746A (en) | 2019-10-18 |
Family
ID=68174268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355201.6A Pending CN110344746A (en) | 2019-04-29 | 2019-04-29 | A kind of convenient and fast extension ladder of operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110344746A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO167473B (en) * | 1989-05-16 | 1991-07-29 | Raufoss As | LIFT LADDER. |
| CN2881052Y (en) * | 2006-02-08 | 2007-03-21 | 何海涛 | Telescopic ladder |
| CN201047247Y (en) * | 2007-04-23 | 2008-04-16 | 简世坤 | Telescopic ladder |
| CN101338649A (en) * | 2008-08-14 | 2009-01-07 | 王万兴 | Telescopic ladder |
| JP3155336U (en) * | 2009-07-09 | 2009-11-12 | ▲尭▼▲広▼ 梁 | Telescopic ladder |
| CN201507233U (en) * | 2009-08-28 | 2010-06-16 | 梁尧广 | Telescopic ladder |
| CN105443025A (en) * | 2016-01-08 | 2016-03-30 | 浙江大学 | Extension ladder with functions of automatic locking and unlocking |
| CN205314907U (en) * | 2016-01-08 | 2016-06-15 | 浙江大学 | Extension ladder with automatic locking and unblock function |
-
2019
- 2019-04-29 CN CN201910355201.6A patent/CN110344746A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO167473B (en) * | 1989-05-16 | 1991-07-29 | Raufoss As | LIFT LADDER. |
| CN2881052Y (en) * | 2006-02-08 | 2007-03-21 | 何海涛 | Telescopic ladder |
| CN201047247Y (en) * | 2007-04-23 | 2008-04-16 | 简世坤 | Telescopic ladder |
| CN101338649A (en) * | 2008-08-14 | 2009-01-07 | 王万兴 | Telescopic ladder |
| JP3155336U (en) * | 2009-07-09 | 2009-11-12 | ▲尭▼▲広▼ 梁 | Telescopic ladder |
| CN201507233U (en) * | 2009-08-28 | 2010-06-16 | 梁尧广 | Telescopic ladder |
| CN105443025A (en) * | 2016-01-08 | 2016-03-30 | 浙江大学 | Extension ladder with functions of automatic locking and unlocking |
| CN205314907U (en) * | 2016-01-08 | 2016-06-15 | 浙江大学 | Extension ladder with automatic locking and unblock function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202027818U (en) | Multifunctional bending, folding and lifting wheeled stretcher with transfusion frame | |
| CN207960460U (en) | Platform ladder | |
| DE2756370A1 (en) | COMBINED GRIPPER IN A NUCLEAR REACTOR | |
| CN108397058A (en) | A kind of electric power drawer cabinet device of alternative unlock | |
| CN206664448U (en) | Control cabinl pulpit and engineering machinery | |
| CN110344746A (en) | A kind of convenient and fast extension ladder of operation | |
| CN213477619U (en) | Climb outer facade fire prevention retractable safety net of frame | |
| CN111021820A (en) | Portable quick installation safety purse seine device of easily accomodating of multipurpose | |
| CN105221065B (en) | Adjustable telescopic device for ladder post of ladder | |
| CN211433814U (en) | Medical bed sheet replacing device | |
| CN112386145B (en) | Toilet device with safety belt anti-falling function and using method thereof | |
| CN112295178B (en) | Auxiliary device for climbing signal tower telegraph pole | |
| CN109629820B (en) | Climbing frame protective net | |
| CN207578386U (en) | It is a kind of can self-locking cable clip suspension arrangement | |
| CN213869679U (en) | Telescopic ladder stand | |
| CN216006404U (en) | Polyester-nylon composite fiber fabric positioning and cutting device | |
| CN210561582U (en) | Handheld puncher for lawn sports field | |
| CN209494232U (en) | A kind of reinforcing bar threading-in device | |
| CN219081199U (en) | Protection device for electric power construction | |
| CN213175145U (en) | Integrated portable safety enclosing net cage | |
| DE2260465C3 (en) | Collapsible rod | |
| CN219343315U (en) | Drainage well lid is opened with having auto-lock location structure hook | |
| CN216947923U (en) | Multi-truss type hanging basket for construction of ultra-wide bridge | |
| CN219031593U (en) | Intelligent building construction equipment | |
| CN213965072U (en) | Power rope for power ring project |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |