CN105036012B - Manual transport trolley with locking mechanism - Google Patents
Manual transport trolley with locking mechanism Download PDFInfo
- Publication number
- CN105036012B CN105036012B CN201510547612.7A CN201510547612A CN105036012B CN 105036012 B CN105036012 B CN 105036012B CN 201510547612 A CN201510547612 A CN 201510547612A CN 105036012 B CN105036012 B CN 105036012B
- Authority
- CN
- China
- Prior art keywords
- latch
- transport trolley
- pallet fork
- vertical rod
- manual transport
- 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.)
- Expired - Fee Related
Links
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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
Abstract
The invention discloses a kind of manual transport trolley of locking machine mechanism, including the vehicle frame being made up of pallet fork, foreboard, top plate and fulcrum bearing；The handle being made up of handrail and vertical rod, the sleeve in vertical rod are connected with top plate；What is be connected with fulcrum bearing steps on a liter device, and the device is made up of a parallel-crank mechanism and a two level bar group；The hydraulic cylinder being connected with fulcrum bearing；Also include the lockable mechanism being made up of clamping ring and latch；Clamping ring is placed on vertical rod periphery, thereon there is the master extended radially out to dial body；Latch is articulated with support, is had thereon to what main group of body direction was stretched out and is dialled body, latch lower end has dentation protuberance in the outer part；Main body of dialling can be in rotational handle, with being contacted by group body and rotating latch after pallet fork raising, the side link clamping of dentation protuberance and parallel-crank mechanism.The manual transport trolley of the present invention ensures fast lifting, while slowly decline, realizes the secure ratcs after raising.
Description
Technical field
The present invention relates to a kind of device for being used to carry heavy object, particularly a kind of hand carrier.
Background technology
Hand carrier is widely used in factory floor, warehouse and logistics, now as a kind of raising handbarrow
There is that is commonly used in manual transport trolley to have a kind of hand hydraulic carrier, the vehicle frame of this hand hydraulic carrier is because including one group
The load platform of pallet fork form, therefore typically it is also referred to as manual pallet trucks.The structure of this carrier also include handle,
Fulcrum bearing, the oil pump being arranged in fulcrum bearing, hydraulic cylinder and the vehicle frame top plate being connected with the piston rod upper end of hydraulic cylinder, top plate with
Connected between pallet fork by foreboard, the dynamical system of oil pump and hydraulic cylinder as carrier, the raising of pallet fork needs hydraulic cylinder to drive
It is dynamic to complete.When goods declines, the weight of pallet fork and goods makes vehicle frame automatic fall-back to bottom.During use, by controlling hand
Handle is in different gears to adjust the raising of vehicle frame, neutral and decline.Needed during prior art raising constantly back and forth by
Handle is pressed, liquid medium is constantly entered from oil pump in hydraulic cylinder rodless cavity, promotes piston rod to move upwards, vehicle frame top plate obtains
Lifting, pallet fork and cargo lifting, therefore existing hydraulic forklift raising is slower, to improve the efficiency of loading and unloading, this hand-hydraulic is carried
Car raising average speed should increase.In addition, in raising heavy object, because handle needs constantly reciprocal pressing so that this
Kind hand hydraulic carrier needs enough operating spaces in operation., can in order to shorten hoisting time and reduction operation space
A liter device is stepped in introducing, realized using linkage it is lever augmented by cargo lifting, to ensure the manual transport trolley of this form
Raising and delivery are safe, and the secure ratcs problem after pallet fork raising needs to solve.
The content of the invention
Present invention solves the technical problem that it is, there is provided a kind of manual transport trolley with locking mechanism, it is this to carry manually
Car can not only fast lifting goods, improve the efficiency of loading and unloading, additionally it is possible to ensure that pallet fork continues to keep its raising status safety to deliver.
The present invention is solved above-mentioned technical problem and realized using following technical scheme：A kind of locking machine mechanism removes manually
Car is transported, it includes the vehicle frame being made up of pallet fork, foreboard, top plate and fulcrum bearing, and pallet fork front end connection fork is taken turns, the connecting rod on the downside of pallet fork
Component is connected to prop up pallet fork front end with the lever reel cage on fork wheel and foreboard, and lever reel cage is connected with fulcrum bearing；By helping
The handle of hand and vertical rod composition, handrail are placed in vertical rod upper end, and vertical rod lower end is connected through the fulcrum bearing with bull wheel, in vertical rod
Sleeve is connected with the top plate；A liter device is stepped on by what support was connected with the fulcrum bearing, the device can be analyzed to one by a set of
The linkage composition of individual parallel-crank mechanism and a two level bar group；And descending liquid is delayed in the throttling being connected with the fulcrum bearing
Cylinder pressure；Additionally include lockable mechanism, the lockable mechanism is made up of clamping ring and latch；Clamping ring is placed on outside the vertical rod
In week, thereon there is the master extended radially out to dial body；Latch is articulated with the support, is had thereon to main body direction of dialling and is stretched
What is gone out is dialled body, and latch lower end has dentation protuberance in the outer part；Liter device of stepping on is by after pallet fork raising, the clamping ring
On master dial body and can contact with being dialled body on the latch when rotating the handle and make latch around its pin joint turn
It is dynamic, the side link clamping of parallel-crank mechanism of the dentation protuberance with stepping on liter device on latch.
In the above-mentioned technical solutions, introduce lockable mechanism to be used to keep pallet fork to be in raising state, the lockable mechanism has
Clamping ring and latch, thus it is simple in construction, it is easy to manufacture to install；Apply active force by pallet fork raising a to high position to stepping on liter device
Afterwards, the parallel-crank mechanism for liter device being stepped on due to lever principle will go to low level, and rotational handle makes clamping ring be rotated with vertical rod,
Main to dial body just to being dialled body force, latch is rotated, and dentation protuberance is contacted with the side link of parallel-crank mechanism, now taken
Disappear the active force applied on liter device is stepped on, and goods and vehicle frame deadweight, which make to step on a liter device, reseting movement trend, now cdontoid process
Go out portion and be easy to side link clamping, therefore the secure ratcs after pallet fork raising can be realized.
As a kind of preferred scheme of manual transport trolley with locking mechanism of the invention, fastening is also set up on the clamping ring
Screw.Need contact and can stir to be dialled body on latch because the master on clamping ring dials body, and latch is cut with scissors with support
Connect, therefore use above-mentioned setting, can more neatly adjust position of the clamping ring with respect to latch, i.e., main body phase of dialling is to being dialled
The position of body, screw is tightened in regulation afterwards in place to be fixed on clamping ring in vertical rod.
As another preferred scheme to present invention manual transport trolley with locking mechanism, the master on the clamping ring dials
Body is cylindrically coiled spring or caoutchouc elasticity flexible pipe.In above-mentioned setting, main body of dialling uses spring or rubber hose, adds master
It is flexible to dial body, can both make to obtain corresponding sports by group body in rotational handle, and can avoids the rotational handle in carrying from adjusting
Master dials body and surrounding miscellaneous part generation rigid interference during bull wheel direction.
As another preferred scheme to manual transport trolley of the present invention, gear is provided with the outside of latch on the support
Block.This set, latch is turned at block and be limited, both can prevent latch from having unnecessary rotational action, and can
Ensure that latch coordinates clamping at its dentation protuberance with linkage side link.
As another preferred scheme to manual transport trolley of the present invention, the two level bar group for stepping on liter device includes and institute
The be hinged connecting rod of the side link of parallel-crank mechanism, the U-shaped upper frame be hinged with connecting rod and the support are stated, on the U-shaped upper frame
Provided with the projection coordinated with the sleeve lower surface.The setting structure is simple, is matched somebody with somebody by the projection on U-shaped frame with sleeve lower end
Close, the active force for making to step on liter device, which is amplified, is transferred to U-shaped frame high spot, sleeve is moved along vertical rod.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the present invention non-lift structure schematic diagram of manual transport trolley with locking mechanism.
Fig. 2 is structural representation after present invention manual transport trolley lifting with locking mechanism.
Fig. 3 is the lockable mechanism structural representation of present invention manual transport trolley with locking mechanism.
The pin of 1. 8. side link of fork wheel 2. pallet fork, 3. foreboard, 4. sleeve, 5. top plate, 6. vertical rod, 7. handrail I 9. in Fig. 1
The left socle of 15. left socle of pedal 10. side link, II 11. right support, 12. fulcrum bearing, 13. link assembly, 14. bull wheel I 16.
II 17. reel cages.
The hydraulic cylinder of 21. connecting rod of raised 20. block of 18.U types upper frame 19. 22. in Fig. 2.
The dentation protuberance 25. of 6. vertical rod, 23. latch 24. leads group clamping ring of body 27. by body 26. is dialled in Fig. 3
28. trip bolt.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the vehicle frame of present invention manual transport trolley with locking mechanism is by pallet fork 2, foreboard 3, top
Plate 5 and fulcrum bearing 12 form, the front end of pallet fork 2 connection fork wheel 1, on the link assembly 13 and fork wheel 1 and foreboard 3 of the downside of pallet fork 2
Lever reel cage 17 is connected to prop up the front end of pallet fork 2, and lever reel cage 17 is connected with fulcrum bearing 12；Handle is by handrail 7 and vertical rod 6
Composition, handrail 7 are placed in the upper end of vertical rod 6, and the lower end of vertical rod 6 is connected through fulcrum bearing 12 with bull wheel 14, the sleeve 4 in vertical rod 6 and top
Plate 5 connects；Step on liter device to be connected by support with fulcrum bearing 12, support here includes right support 11, left socle I 15 and left branch
Frame II 16, step on liter device and be made up of a set of linkage that can be analyzed to a parallel-crank mechanism and a two level bar group；
Descending liquid cylinder pressure 22 is delayed in the throttling that manual transport trolley of the present invention also includes being connected with fulcrum bearing 12；In addition manual transport trolley of the present invention
Lockable mechanism is made up of clamping ring 27 and latch 23；Clamping ring 27 is placed on the periphery of vertical rod 6, has what is extended radially out thereon
It is main to dial body 26；Latch 23 is articulated with right support 11, is had thereon to what the main group of direction of body 26 was stretched out and is dialled body 25, latch
23 lower ends have dentation protuberance 24 in the outer part.
Trip bolt 28 is also set up on the clamping ring 27 of the lockable mechanism of manual transport trolley of the present invention, can flexible modulation clamping
The position of the relative latch 23 of circle 27, i.e. adjustment are main to dial the relative position for being dialled body 25 of body 26, both is fully contacted, regulation is arrived
Tightening screw 28 behind position can be fixed on clamping ring 27 in vertical rod 6；It is cylindrically coiled spring that master on clamping ring 27, which dials body 26,
Rubber spring flexible pipe can be selected, can both make to obtain corresponding sports by group body 25 in rotational handle, and can is avoided in carrying
Master dials body 26 and surrounding miscellaneous part generation rigid interference when rotational handle adjusts 14 direction of bull wheel；On right support 11 in support
Be provided with block 20 close to the outside of latch 23, latch 23 can be made spacing with the clamping of side link I 8 at, it is unnecessary to avoid
Rotational action.
The parallel-crank mechanism in liter device of stepping on of manual transport trolley of the present invention includes pedal 9, side link I 8 and frame linking
Bar II 10, wherein pedal 9 and side link I 8 and side link II 10 are be hinged, side link I 8 and left socle I 15 and left socle II 16
Be hinged, side link II 10 is be hinged with left socle I 15；Two level bar group includes the company be hinged with the side link I 8 of parallel-crank mechanism
Bar 21, the U-shaped upper frame 18 be hinged with connecting rod 21 and support I 8, the U-shaped upper frame 18 are provided with the projection coordinated with the lower surface of sleeve 4
19。
Descending liquid cylinder pressure 22 is delayed in the throttling of manual transport trolley of the present invention, and its piston rod is connected with sleeve 4 and/or top plate 5 indirectly,
Sleeve 4 and/or top plate 5 rise, and liquid enters rodless cavity from rod chamber in hydraulic cylinder 22, and sleeve 4 and/or top plate 5 decline, hydraulic pressure
Liquid enters rod chamber from rodless cavity in cylinder 22, because piston divides into flow regulator pieces, can play slow drop effect.
The handrail 7 of manual transport trolley of the present invention is promoted, is moved at goods vantage point to be handled, goods is put
It is placed on pallet fork 2, pedal 9 in liter device is stepped on to carrier and imposes down force, side link I 8 and side link II 10 are around it
Run-on point rotates down, and the connecting rod 21 being connected with side link I 8 pulls on U-shaped upper frame 18 in two level bar group around remaining right branch
The tie point of frame 11 rotates, and the projection 19 on U-shaped upper frame 18 coordinates with the lower surface of sleeve 4, and sleeve 4 is jacked up upwards along vertical rod 6,
Sleeve 4 drives top plate 5 to be moved up along vertical rod 6, and the rear end of pallet fork 2 obtains raising, and the raising of foreboard 3 will drive the He of lever reel cage 17
Link assembly 13 moves, and the front end of pallet fork 2 is propped up, pallet fork 2 and goods obtain fast lifting.
The handrail 7 of rotational handle rotates vertical rod 6, and the master on clamping ring 23 dials body 26 with being dialled body 25 on latch 23
Contact and latch 23 is rotated around the pin joint of itself and right support 11, dentation protuberance 24 on latch 23 and step on a liter device
Parallel-crank mechanism side link I 8 contact, due to the effect of block 20, latch 23 can be after side link I 8 be contacted
Stop operating, eliminate the active force to applying on pedal 9, under the Gravitative Loads of pallet fork 2 and goods, parallel-crank mechanism
By reset trend, pedal 9 has upward movement tendency, therefore the dentation protuberance 24 of latch 23 can block with side link I 8
Tightly, make to step on a liter device and obtain secure ratcs, now rotational handle ajusts bull wheel 14, handrail 7 can will be promoted, by cargo security
It is carried to specified location.
During the raising of pallet fork 2, because the piston rod of hydraulic cylinder 22 is connected with sleeve 4 and/or top plate 5 indirectly, piston
Bar will move upwards with sleeve 4 and/or top plate 5, and the rod chamber of hydraulic cylinder 22 is that the liquid medium of piston upper end compresses flow regulator pieces, living
Gap between plug and flow regulator pieces be will be enlarged by, and liquid medium can be rapidly introduced into rodless cavity, and do not influence pallet fork 2 plays raising speed
Degree.
Goods needs to unload after reaching appointed place, now needs to apply pedal 9 down force, on latch 23
Dentation protuberance 24 will be swung towards its center of gravity direction, be departed from side link I 8, cancel the active force on pedal 9, in goods and
Under the self gravitation effect of pallet fork 2, pallet fork 2 is begun to decline, and top plate 5 declines with moving sleeve 4, and the lower surface of sleeve 4 is to U-shaped upper frame 18
Projection 19 exerts a force, and U-shaped upper frame 18 is rotated around the tie point of itself and right support 11, the U-shaped other end of upper frame 18 pulls on connecting rod 21
Rotate backward side link I 8, side link II 10 and the counter motion of pedal 9 to initial position.Foreboard 3 and pallet fork 2 decline, will
Drive lever reel cage 17 and link assembly 13 to move, fall the front end of pallet fork 2, pallet fork 2 and cargo security decline.
During pallet fork 2 declines, because the piston rod of hydraulic cylinder 22 is connected with sleeve 4 and/or top plate 5 indirectly, piston
Bar will move downward with sleeve 4 and/or top plate 5, and the rodless cavity of hydraulic cylinder 22 is that the liquid medium of piston compresses flow regulator pieces, living
Gap between plug and flow regulator pieces will reduce, and liquid medium flows into the resistance increase of rodless cavity from rod chamber, and liquid medium can delay
Slowly enter in rod chamber, influence the decrease speed of pallet fork 2, it is sufficient to ensure that goods and pallet fork 2 steadily decline.
The present invention manual transport trolley can ensure fast lifting, while slowly decline, realize after raising can
By locking, safe carriage coefficient after carrier raising is added, and lockable mechanism is simple in construction, is easy to processing to install, locking
Operation is simple.The manual transport trolley lockable mechanism of the present invention is separately carried out with stepping on liter device action, and close linking, with stepping on
Liter device carries lockable mechanism and compared, and a liter apparatus structure is stepped in simplification, while makes manual transport trolley compact overall structure succinct.
Finally illustrate, the manual transport trolley with locking mechanism that above example refers to, be not limited to this case institute
Diagram is provided.It will be understood by those within the art that technical scheme can be modified or be equal
Replace, without departing from the objective and scope of technical solution of the present invention, it all should cover among scope of the presently claimed invention.
Claims (5)
1. a kind of manual transport trolley with locking mechanism, it includes
- by pallet fork（2）, foreboard（3）, top plate（5）And fulcrum bearing（12）The vehicle frame of composition, pallet fork（2）Front end connection fork wheel
（1）, the link assembly on the downside of pallet fork（13）Taken turns with fork（1）And foreboard（3）On lever reel cage（17）It is connected to pallet fork（2）
Front end is propped up, lever reel cage（17）With fulcrum bearing（12）Connection；
- by handrail（7）And vertical rod（6）The handle of composition, handrail（7）It is placed in vertical rod（6）Upper end, vertical rod（6）Lower end is described in
Fulcrum bearing（12）With bull wheel（14）Connection, vertical rod（6）On sleeve（4）With the top plate（5）Connection；
- and the fulcrum bearing（12）A liter device is stepped on by what support connected, the device can be analyzed to parallel four side by a set of
The linkage composition of shape mechanism and a two level bar group；And
- and the fulcrum bearing（12）Descending liquid cylinder pressure is delayed in the throttling of connection（22）；
It is characterized in that：
Also include lockable mechanism, the lockable mechanism is by clamping ring（27）And latch（23）Composition；Clamping ring（27）It is placed on described
Vertical rod（6）Periphery, thereon there is the master extended radially out to dial body（26）；Latch（23）It is articulated with the support, thereon
With dialling body to main（26）What direction was stretched out is dialled body（25）, latch（23）Lower end has dentation protuberance in the outer part（24）；
Liter device of stepping on is by pallet fork（2）After raising, the clamping ring（27）On master dial body（26）The handle can rotated
When, with the latch（23）On by dial body（25）Contact and make latch（23）Rotated around its pin joint, latch（23）
On dentation protuberance（24）With the side link for the parallel-crank mechanism for stepping on liter device（8）Clamping.
2. manual transport trolley with locking mechanism according to claim 1, it is characterised in that：The clamping ring（27）On also set
Put trip bolt（28）.
3. manual transport trolley with locking mechanism according to claim 1, it is characterised in that：The clamping ring（27）On master
Dial body（26）For cylindrically coiled spring or caoutchouc elasticity flexible pipe.
4. manual transport trolley with locking mechanism according to claim 1, it is characterised in that：Close to latch on the support
（23）Outside is provided with block（20）.
5. manual transport trolley with locking mechanism according to claim 1, it is characterised in that：The two level bar for stepping on liter device
Group includes the side link with the parallel-crank mechanism（8）Be hinged connecting rod（21）With connecting rod（21）It is hinged with the support
U-shaped upper frame（18）, the U-shaped upper frame（18）It is provided with and the sleeve（4）The projection that lower surface coordinates（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547612.7A CN105036012B (en) | 2015-08-31 | 2015-08-31 | Manual transport trolley with locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547612.7A CN105036012B (en) | 2015-08-31 | 2015-08-31 | Manual transport trolley with locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105036012A CN105036012A (en) | 2015-11-11 |
| CN105036012B true CN105036012B (en) | 2017-12-12 |
Family
ID=54443066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510547612.7A Expired - Fee Related CN105036012B (en) | 2015-08-31 | 2015-08-31 | Manual transport trolley with locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105036012B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584957B (en) * | 2016-03-11 | 2017-04-05 | 山东建筑大学 | Ratchet locking manual transport trolley |
| CN110357003B (en) * | 2019-07-15 | 2024-04-12 | 厦门大学嘉庚学院 | Small forklift and working method thereof |
| CN115259024A (en) * | 2022-07-20 | 2022-11-01 | 诺力智能装备股份有限公司 | Frame structure and carrier applying same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08157192A (en) * | 1994-12-02 | 1996-06-18 | Ohbayashi Corp | Forklift type carriage to transfer cargo inside and outside of elevator |
| CN102556889B (en) * | 2011-12-11 | 2014-04-02 | 富泰华精密电子（郑州）有限公司 | Lifting mechanism with connecting rod |
| CN203048509U (en) * | 2012-04-22 | 2013-07-10 | 龙工(上海)机械制造有限公司 | Battery jar pull-out mechanism for storage battery forward fork lift |
| CN202671108U (en) * | 2012-06-05 | 2013-01-16 | 朱坤东 | Anti-falling horizontal hydraulic jack |
| CN203996343U (en) * | 2014-07-25 | 2014-12-10 | 浙江中力机械有限公司 | A kind of electrical structure of transport trolley |
| CN104817042B (en) * | 2015-04-09 | 2017-08-25 | 山东建筑大学 | A kind of hydraulic forklift |
-
2015
- 2015-08-31 CN CN201510547612.7A patent/CN105036012B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105036012A (en) | 2015-11-11 |
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