CN105947941A - Safe and reliable lifting frame - Google Patents
Safe and reliable lifting frame Download PDFInfo
- Publication number
- CN105947941A CN105947941A CN201610466203.9A CN201610466203A CN105947941A CN 105947941 A CN105947941 A CN 105947941A CN 201610466203 A CN201610466203 A CN 201610466203A CN 105947941 A CN105947941 A CN 105947941A
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- CN
- China
- Prior art keywords
- adjustable shelf
- frame body
- arm
- safe
- fixed mount
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The invention discloses a safe and reliable lifting frame. The safe and reliable lifting frame comprises a fixed frame body, a movable frame body, an electric winch, a lifting control device of the winch and an anti-falling device of the movable frame body, and the electric winch is arranged on the outer side of the lower portion of the fixed frame body. Steel cables in transmission connection with the winch are in pulling connection with the movable frame body through fixed pulleys arranged at the top of the fixed frame body. The movable frame body and the fixed frame body are both square-frame-shaped frame bodies. The movable frame body is arranged in a frame body of the fixed frame body in a sleeved mode. The anti-falling device comprises four sets of one-way non-return device bodies which are rotationally and symmetrically arranged. Each set of one-way non-return device body comprises a plurality of protruding blocks and a lever-type one-way rotating rod, wherein the protruding blocks are arranged on the side surface of each lateral edge frame strip of the fixed frame body at intervals up and down, and the supporting point of each lever-type one-way rotating rod is arranged on the side surface of a corresponding lateral edge frame strip of the movable frame body. Each one-way rotating rod is horizontally arranged. An arm, close to the inner side, of each one-way rotating rod is a resisting arm. An arm, close to the outer side, of each one-way rotating rod is a power arm. The length of each resisting arm is larger than that of the corresponding power arm. A non-return stop block pressing against each lateral edge frame strip of the movable frame body is arranged in the position, close to the corresponding supporting point, of the top surface of each power arm. The reliability is higher.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of safe and reliable crane.
Background technology
Crane is conventional construction device, and convenience and the reliability of its lifting are critically important to safety operation.
The crane device of prior art, various structures, have lifts by HYDRAULIC CONTROL SYSTEM, and have uses gear
Rackwork, have then lifts with hoist engine.Use HYDRAULIC CONTROL SYSTEM lifting and use the machine of rack-and-pinion
Structure reliability is higher, but structure is relative complex, and cost is high, and the structure using hoist engine elevating mechanism is the simplest
Single, cost is low, but reliability is relatively poor.
The crane of the hoist engine elevating mechanism of prior art, its structure with reference to Fig. 1, generally include fixed mount 1,
Adjustable shelf 2, be located at the electric winch 10 of fixed mount 1 lower outside, the apparatus for controlling of lifting of electric winch 10,
The anti-fall device of adjustable shelf 2；The wirerope 13 that electric winch 10 is in transmission connection is by being located at fixed mount 1 top
Fixed pulley 14 pull with adjustable shelf 2 and be connected；Its anti-fall device is exactly generally by wirerope 13, clutch, guarantor
Danger ratchet, fixed pulley 14, the combined reliability of electromechanical controlling device ensure.
Use the crane device of the hoist engine elevating mechanism of such technology it is of course possible to use, but its reliability is wanted
Whole synthesis reliability by multiple link parts ensures；Any one parts goes wrong and all can produce safety
Hidden danger.Reliability is the highest, and using effect is the most preferable.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention provides one, and structure is the most reasonable, reliability is higher, uses
A kind of safe and reliable crane of effect.
The present invention be the technical scheme is that a kind of safe and reliable crane by reaching above-mentioned technical purpose,
Including fixed mount, adjustable shelf, it is located at the elevating control of the electric winch of fixed mount lower outside, electric winch
Device, the anti-fall device of adjustable shelf；The wirerope that electric winch is in transmission connection is by being located at determining of fixed mount top
Pulley pulls with adjustable shelf and is connected；Described adjustable shelf and fixed mount are square frame-shaped support body, and adjustable shelf is sheathed
In the framework of fixed mount；Described anti-fall device include four groups each other in rotationally symmetrical setting unidirectional only
Return device；Often group one-way non-return device includes multiple incline portion moulding being disposed on fixed mount up and down
Projection, a fulcrum on side are arranged on the lever-type list on the moulding side, corresponding incline portion of adjustable shelf
To bull stick；Unidirectional bull stick is horizontally disposed with；The inner side arm of unidirectional bull stick is resistance arm, and outer side arm is power
Arm, the length of resistance arm is more than the length of power arm；The end face of power arm is provided with at fulcrum and is pressed over work
Non-return block on the incline portion moulding of moving frame.
When described adjustable shelf moves up and down, the outer end of the power arm of unidirectional bull stick and corresponding position projection are pressed against even
Connect.
The distribution in two diagonal positions of the bottom surface of described fixed mount is provided with the sleeve pipe of two hollows, each
All being inserted with expansion link in the two ends mouth of pipe of sleeve pipe, the outer end of expansion link is provided with and adjusts height by turning handle
Leg.
Four corners of described adjustable shelf bottom surface are equipped with guide roller, and the recessed race activity of guide roller is pressured
On the rib of fixed mount correspondence incline portion moulding；The bottom of guide roller is provided with damping spring；Adjustable shelf drops
During to lowest order, the bottom of damping spring is pressed on the end face of corresponding position sleeve pipe.
The foundation being connected with adjustable shelf bottom surface it is additionally provided with, the length of damping spring in the spring coil of described damping spring
Degree is more than the length of foundation.
Four corners of the bottom surface of described fixed mount are additionally provided with universal wheel.
The apparatus for controlling of lifting of described electric winch is that the control knob plate put and be located at adjustable shelf top face leads to
Cross cable to be connected with the motor control assembly of electric winch.
It is additionally provided with cat ladder on one side of described fixed mount.
The invention has the beneficial effects as follows: owing to described adjustable shelf and fixed mount are square frame-shaped support body, adjustable shelf
It is set in the framework of fixed mount；Described anti-fall device includes four groups each other in the list of rotationally symmetrical setting
To check device；Often group one-way non-return device includes multiple incline portion being disposed on fixed mount up and down
Projection, a fulcrum on moulding side are arranged on the lever on the moulding side, corresponding incline portion of adjustable shelf
Unidirectional bull stick；Unidirectional bull stick is horizontally disposed with；The inner side arm of unidirectional bull stick is resistance arm, and outer side arm is
Power arm, the length of resistance arm is more than the length of power arm；The end face of power arm is provided with pressured at fulcrum
Non-return block on the incline portion moulding of adjustable shelf.
Therefore, when adjustable shelf freely raises, all can be by the power of one-way non-return device at each height gear
Jib is located on the projection at respective heights, and when the miscellaneous part of crane is out of order, adjustable shelf is all without falling,
Reliability is higher, and single the most operable, using effect is more preferable.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.Wherein:
Fig. 1 is the overall schematic of the present invention；
Fig. 2 is the schematic diagram of the holder segment in the present invention；
Fig. 3 is the schematic diagram of the adjustable shelf part in the present invention；
Fig. 4 is the omission schematic diagram in a corner in the present invention；
Fig. 5 is the omission schematic diagram of another line of vision in a corner in the present invention.
Marker number in accompanying drawing is described as follows: fixed mount 1, adjustable shelf 2, projection 3, unidirectional bull stick 4,
Turning handle 5, leg 6, expansion link 7, universal wheel 8, sleeve pipe 9, electric winch 10, damping spring 11, lead
Way roller 12, wirerope 13, fixed pulley 14, cat ladder 15, non-return block 16, foundation 17
Detailed description of the invention
Embodiments of the invention, as shown in Figures 1 to 5.A kind of safe and reliable crane, including fixed mount
1, adjustable shelf 2, be located at the electric winch 10 of fixed mount 1 lower outside, the elevating control of electric winch 10
Device, the anti-fall device of adjustable shelf 2；The wirerope 13 that electric winch 10 is in transmission connection is by being located at fixed mount 1
The fixed pulley 14 at top pulls with adjustable shelf 2 and is connected；Described adjustable shelf 2 and fixed mount 1 are square frame-shaped
Support body, adjustable shelf 2 is set in the framework of fixed mount 1；Described anti-fall device include four groups each other in
The one-way non-return device of rotationally symmetrical setting；Often group one-way non-return device includes multiple being disposed on up and down admittedly
Determine 3, the fulcrum of projection on the moulding side, an incline portion of frame 1 and be arranged on the corresponding incline of adjustable shelf 2
Lever-type unidirectional bull stick 4 on moulding side, portion；Unidirectional bull stick 4 is horizontally disposed with；Unidirectional bull stick 4 inner
Side arm is resistance arm, and outer side arm is power arm, and the length of resistance arm is more than the length of power arm；Power arm
End face at fulcrum, be provided with the non-return block 16 on the incline portion moulding being pressed over adjustable shelf 2.
When described adjustable shelf 2 moves up and down, the outer end of the power arm of unidirectional bull stick 4 is pressed with corresponding position projection 3
By connecting.
The distribution in two diagonal positions of the bottom surface of described fixed mount 1 is provided with the sleeve pipe 9 of two hollows,
All being inserted with expansion link 7 in the two ends mouth of pipe of each sleeve pipe 9, the outer end of expansion link 7 is provided with passes through turning handle
5 legs 6 adjusting height.
Four corners of described adjustable shelf 2 bottom surface are equipped with guide roller 12, the recessed race of guide roller 12
Activity is pressed on the rib of fixed mount 1 corresponding incline portion moulding；The bottom of guide roller 12 is provided with damping bullet
Spring 11；When adjustable shelf 2 is preferably minimized, the bottom of damping spring 11 is pressed on the end face of corresponding position sleeve pipe 9.
The foundation 17 being connected with adjustable shelf 2 bottom surface, damping it is additionally provided with in the spring coil of described damping spring 11
The length of spring 11 is more than the length of foundation 17.
Four corners of the bottom surface of described fixed mount 1 are additionally provided with universal wheel 8.
The apparatus for controlling of lifting of described electric winch 10 is the control knob put and be located at adjustable shelf 2 top face
Plate is connected with the motor control assembly of electric winch 10 by cable.
It is additionally provided with cat ladder 15 on one side of described fixed mount 1.
The operation principle of the present invention is: during use, first the crane being provided with universal wheel 8 is dragged to working position, will
Four expansion links 7 pull out from sleeve pipe 9, rotate each turning handle 5 and each leg 6 is supported on ground, so
Whole support body is solid and reliable, and now adjustable shelf 2 is in lowest order, and operator is first along cat ladder 15 climbing to activity
Frame 2 end face first works at low level, time to be raised, as long as operator presses the corresponding button on control knob plate,
Electric winch 10 pulls adjustable shelf 2 to raise by wirerope 13 by fixed pulley 14.It is right that adjustable shelf 2 is increased to
When answering gear height, one-way non-return device works, the end face of the outer end of the power arm of unidirectional bull stick 4 first with
The bottom surface of corresponding position projection 3 is pressed against, and when adjustable shelf 2 continues to raise, the power arm of unidirectional bull stick 4 is in activity
Frame 2 rises gravity i.e. " resistance " of the resistance arm overcoming unidirectional bull stick 4 under the effect of " power " and starts to turn
Dynamic, after power arm rises and turns to cross projection 3, owing to the length of resistance arm is more than the length of power arm
Degree, unidirectional bull stick 4 recovers level under the action of gravity of resistance arm, under the effect of non-return block 16
Not being rotated further by, the bottom surface of each power arm presses up against the end face of the projection 3 of corresponding position, supports adjustable shelf 2.
Arranging guide roller 12, the recessed race activity of guide roller 12 is pressed over fixed mount 1 corresponding incline portion frame
Adjustable shelf 2 can be made on the rib of bar to have individual guide rail when rising, the most steady.
Arrange damping spring 11 can make to lower adjustable shelf 2 position on earth time can " soft landing ".
Foundation 17 is set, and the length of damping spring 11 is more than the length of foundation 17, adjustable shelf 2 can be made
During low level, adjustable shelf 2 can also have the bottom fulcrum of rigidity to carry out load-bearing after being compressed by damping spring 11.
Finally adjustable shelf 2 is reset to position, the end time, operator is first lower to ground, by each unidirectional bull stick 4
Resistance arm the most upwards turn 90 degrees, and presses and will after adjustable shelf 2 is fallen by the corresponding button on control knob plate again
Resistance arm all goes back in situ.
The present invention is not limited only to above-mentioned specific embodiment.It is understood that without departing from the present invention spirit and
In the case of essential scope, can make various changes and modifications, these all should be included in the protection of the present invention
Within the scope of.
Claims (8)
1. a safe and reliable crane, including fixed mount, adjustable shelf, is located at fixed mount lower outside
Electric winch, the apparatus for controlling of lifting of electric winch, the anti-fall device of adjustable shelf；Electric winch is in transmission connection
Wirerope pull with adjustable shelf be connected by being located at the fixed pulley at fixed mount top；It is characterized in that: described
Adjustable shelf and fixed mount are square frame-shaped support body, and adjustable shelf is set in the framework of fixed mount；Described is anti-fall
Device includes four groups of one-way non-return devices in rotationally symmetrical setting each other；Often group one-way non-return device includes
Projection, a fulcrum on multiple moulding sides, an incline portion being disposed on fixed mount up and down are arranged on
Lever-type unidirectional bull stick on the moulding side, corresponding incline portion of adjustable shelf；Unidirectional bull stick is horizontally disposed with；Single
Being resistance arm to the inner side arm of bull stick, outer side arm is power arm, and the length of resistance arm is more than power arm
Length；The end face of power arm is provided with the non-return block on the incline portion moulding being pressed over adjustable shelf at fulcrum.
A kind of safe and reliable crane the most according to claim 1, it is characterised in that: described work
When moving frame moves up and down, the outer end of the power arm of unidirectional bull stick is pressed against with corresponding position projection and is connected.
A kind of safe and reliable crane the most according to claim 2, it is characterised in that: described consolidates
The distribution in two diagonal positions of the bottom surface determining frame is provided with the sleeve pipe of two hollows, the two ends of each sleeve pipe
All being inserted with expansion link in the mouth of pipe, the outer end of expansion link is provided with the leg being adjusted height by turning handle.
A kind of safe and reliable crane the most according to claim 3, it is characterised in that: described work
Four corners of moving frame bottom surface are equipped with guide roller, and the recessed race activity of guide roller is pressed over fixed mount pair
Answer on the rib of incline portion moulding；The bottom of guide roller is provided with damping spring；When adjustable shelf is preferably minimized,
The bottom of damping spring is pressed on the end face of corresponding position sleeve pipe.
A kind of safe and reliable crane the most according to claim 4, it is characterised in that: described subtracts
Being additionally provided with, in the spring coil of shake spring, the foundation being connected with adjustable shelf bottom surface, the length of damping spring is more than foundation
Length.
A kind of safe and reliable crane the most according to claim 5, it is characterised in that: described consolidates
Four corners of the bottom surface determining frame are additionally provided with universal wheel.
A kind of safe and reliable crane the most according to claim 6, it is characterised in that: described electricity
The apparatus for controlling of lifting of dynamic winch is that the control knob plate put and be located at adjustable shelf top face passes through cable with electronic
The motor control assembly of winch connects.
A kind of safe and reliable crane the most according to claim 7, it is characterised in that: described consolidates
Determine to be additionally provided with cat ladder on a side of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466203.9A CN105947941A (en) | 2016-06-23 | 2016-06-23 | Safe and reliable lifting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466203.9A CN105947941A (en) | 2016-06-23 | 2016-06-23 | Safe and reliable lifting frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105947941A true CN105947941A (en) | 2016-09-21 |
Family
ID=56904703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466203.9A Pending CN105947941A (en) | 2016-06-23 | 2016-06-23 | Safe and reliable lifting frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105947941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762129A (en) * | 2017-10-18 | 2018-03-06 | 北京城建长城建筑装饰工程有限公司 | Furred ceiling hoisting frame |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201605132U (en) * | 2009-07-10 | 2010-10-13 | 上海田田汽车保修设备有限公司 | Double-column lifting machine and guarantee unit for transmission chain of double-column lifting machine |
| CN102556890A (en) * | 2012-02-06 | 2012-07-11 | 谭锦泉 | Self-lifting mounting platform for steel head material hoister and mounting method for mounting platform |
| CN202492342U (en) * | 2012-03-26 | 2012-10-17 | 上海田田汽车保修设备有限公司 | Chain safety device of double-column lifting machine |
| CN103043582A (en) * | 2012-12-30 | 2013-04-17 | 浙江鼎力机械股份有限公司 | Tilt-preventing support device of aerial work platform |
| CN103818854A (en) * | 2014-03-12 | 2014-05-28 | 洛阳佳嘉乐农业产品开发有限公司 | Lifting protection mechanism of crop planting device |
| CN205676111U (en) * | 2016-06-23 | 2016-11-09 | 福建省三明华丰机械有限公司 | A kind of safe and reliable crane |
-
2016
- 2016-06-23 CN CN201610466203.9A patent/CN105947941A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201605132U (en) * | 2009-07-10 | 2010-10-13 | 上海田田汽车保修设备有限公司 | Double-column lifting machine and guarantee unit for transmission chain of double-column lifting machine |
| CN102556890A (en) * | 2012-02-06 | 2012-07-11 | 谭锦泉 | Self-lifting mounting platform for steel head material hoister and mounting method for mounting platform |
| CN202492342U (en) * | 2012-03-26 | 2012-10-17 | 上海田田汽车保修设备有限公司 | Chain safety device of double-column lifting machine |
| CN103043582A (en) * | 2012-12-30 | 2013-04-17 | 浙江鼎力机械股份有限公司 | Tilt-preventing support device of aerial work platform |
| CN103818854A (en) * | 2014-03-12 | 2014-05-28 | 洛阳佳嘉乐农业产品开发有限公司 | Lifting protection mechanism of crop planting device |
| CN205676111U (en) * | 2016-06-23 | 2016-11-09 | 福建省三明华丰机械有限公司 | A kind of safe and reliable crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762129A (en) * | 2017-10-18 | 2018-03-06 | 北京城建长城建筑装饰工程有限公司 | Furred ceiling hoisting frame |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |