CN2286748Y - Hand-driven lifting forklift - Google Patents
Hand-driven lifting forklift Download PDFInfo
- Publication number
- CN2286748Y CN2286748Y CN 96230328 CN96230328U CN2286748Y CN 2286748 Y CN2286748 Y CN 2286748Y CN 96230328 CN96230328 CN 96230328 CN 96230328 U CN96230328 U CN 96230328U CN 2286748 Y CN2286748 Y CN 2286748Y
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- brake
- trundle
- frame
- ratchet
- screw
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- Expired - Fee Related
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Abstract
The utility model discloses a bulk or heavy lifting device-a hand-driven lifting forklift used for the purpose of loading or unloading. Compared with a prior hydraulic lifting forklift and an electric lifting forklift, the forklift is characterized in that a clearance adjusting device is additionally arranged on a shovel frame, a driving mechanism is provided with a rapid on-off self locking device and a telescopic rocker rod, and the front wheels are provided with a front wheel brake device. Accordingly, the utility model has the advantages that the brake performance is rapid, sensitive, and reliable, a force arm can be regulated freely according to the heavy lifted, and the shovel frame can be lifted stably, besides the common functions of the hydraulic lifting forklift and the electric lifting forklift. The utility model can be used in the occasions, such as storages, shops, workshops, etc., particularly the inflammable, explosive and field work.
Description
Hand-operated lifting fork truck of the present utility model is that occasions such as a kind of warehouse, shop, workshop are used for the lifting bulk cargo of loading or unloading purpose or the device of weight, goes into B66F9/06.
Domestic fork lift truck commonly used is based on hydraulic lifting fork truck and electric up-down fork truck at present.For the hydraulic lifting fork truck, consider that homemade sealing member quality does not pass a test at present, easily aging, leakage causes greasy dirt etc., has limitation for loading and unloading printing product, food, Knitted and Cotton Goods etc., and relatively heavier, the maintenance trouble.For the electric up-down fork truck, the one, must there be power supply the work-yard, and fork truck drags a power lead to work, and then will often charge as make prime power with storage battery, and this is frequent for moving, and work-yard non-transformer and open-air occasion are used and are brought difficulty; The 2nd, as making prime power, produce spark during owing to the storage battery starting with storage battery, then can not use for inflammable, explosive occasion.Above-mentioned in addition two kinds of general trailing wheels of fork truck are equipped with brake gear, and front-wheel does not have braking mechanism usually, and careless slightly fork truck is moved during work, influence safety, stable.
The purpose of this utility model is that a kind of deficiency that can overcome hydraulic lifting fork truck and electric up-down fork truck will be provided, have again small and exquisite flexibly, strong and the hand-operated lifting fork truck of comformability with quick stop performance.
Hand-operated lifting fork truck of the present utility model is realized as follows: the hand-operated lifting fork truck is made up of door frame, shovel fork support, transmission device, front-wheel brake gear and mobile wheel etc.Door frame is to make framed structure by unequal-sided channel-section steel, in its bottom four mobile wheels are installed, before and after dividing, left and right each one, general trailing wheel is big, preceding size of wheel is littler, on trailing wheel (wheel construction is identical after left and right two) brake equipment or brake facing are housed, the trailing wheel brake equipment is similar on its structure and the present hydraulic lifting fork truck commonly used.Go up design at front-wheel (structure of left and right 2 front-wheels and braking mechanism is identical) front-wheel brake gear (hereinafter to be referred as brake gear) is arranged.Steel rope washer, top sheave are housed on the crossbeam at door frame top, promote the steel rope of forklift support (being called for short the shovel frame) usefulness, one end is fixed by the steel rope washer, and the other end is fixing on the outer drum on the drum frame in the transmission device by the lower sheave of shovel on the frame, the top sheave on the door frame top cross-bar.Shovel fork, lower sheave and left and right turning rolls are installed on the shovel frame, and the shovel fork is connected with the shovel frame by shovel fork cotter axle, and left and right roller carrier is identical, is full of the installation direction difference, and it is to fix by welding and shovel frame.The arrangement that is centrosymmetric of the lash adjusting device of on turning rolls, forming, pair roller frame by a pair of big roller and by 2 trundles.Big roller by dowel fixes on turning rolls.Lash adjusting device is made up of 2 trundles, 2 trundle governing screw and trundle frame, and wherein trundle is contained on the trundle frame by pin, and governing screw one end is through on the trundle frame, and the other end is connected by nut with the big roller frame.The effect of turning rolls is to realize lifting as rolling movement by big roller in the channel-section steel of door frame side when the shovel frame is done dipping and heaving, and the effect of lash adjusting device is the gap that guarantees between shovel frame and the door frame, prevent to shovel that frame is left and right rocks, trundle in the lash adjusting device is to contact the back to roll with the door frame sidewall, so the central axis of trundle is vertical mutually with the central axis of big roller.The adjustment in gap realizes by the trundle governing screw.Transmission device is made up of rocker mechanism in the mechanism housing and drum mechanism two parts.Wherein rocker mechanism is made up of rocker shaft, bearing, quick clutch self-locking device, flywheel, track adjusting wheel etc. and is rack-mount.Bearing I is housed and bearing I I freely rotates with the supporting rocker shaft at an end of rocker shaft, wherein bearing I I is contained on the support, and bearing I is contained in the bearing seat, and bearing seat also is contained on the support.Between bearing I and bearing I I flywheel and track adjusting wheel are housed, the sprocket wheel in flywheel and the drum mechanism is chain gear, and track adjusting wheel is to play the guiding role when twining at steel rope.Be shaped on the four-head screw thread on the other end axle of rocker shaft, pawl seat that matches therewith and rocker arm bracket just cover are threaded in the above, telescopic rocking lever are housed to regulate the arm of force in rocker arm bracket.The clutch self-locking device is made up of rocker arm bracket, pawl seat, ratchet, inside and outside two Friction disks and ratchet etc. fast, in two Friction disks (be internal friction sheet and outer Friction disk) centre ratchet is housed, Friction disk and ratchet all are enclosed within on the pawl seat that is shaped on the four-head screw thread.End at ratchet screw is equipped with ratchet spring and ratchet, and ratchet enters in the hook tooth.The other end of ratchet screw is contained on the support of mechanism housing inboard.Pawl seat is in the mechanism housing outside, on the support of mechanism housing medial surface bearing seat is housed, and bearing I is housed in the bearing seat, near bearing I be flywheel, track adjusting wheel is contained between bearing I I and the flywheel.Above-mentioned said ratchet device is unidirectional transmission, ratchet slips on the ratchet flank of tooth when clockwise rotating, when rotating counterclockwise, ratchet withstands ratchet, stoping it to reverse the start-stop action uses, for the purpose of last work is reliable, two ratchets are housed, the axle center separately of two ratchets and ratchet axle center be wired to vertical relation.Drum mechanism is: chain wheel core housing and drum core retainer plate are housed on the drum axle, on the chain wheel core housing, sprocket wheel are housed, on the drum core retainer plate, being equipped with drum and outside drum.Sprocket wheel and flywheel are by chain gear.The front-wheel brake gear is actually a connecting rod mechanism, and it is made up of the brake handle, brake top rod, brake transverse axis, brake lower link, brake spring and the braking vane that are contained on the door frame.Wherein brake is connected the end with the brake top rod by screw, the brake top rod the other end by screw retention the brake transverse axis on, one end of brake lower link is fixed with screw and brake transverse axis by lug, be connected with braking vane behind brake spring of other end cover of brake lower link, one end of braking vane, and can be swung around the fulcrum in the middle of the braking vane on front wheel carrier by screw retention.On left and right two front-wheels brake gear is housed all, structure is identical.During brake pulling brake because the connecting rod effect, the pulling braking vane is checked preceding wheel, releasing of brake the back by the reset response of brake spring with braking vane and the disengagement of preceding wheel.
According to such scheme design-calculated hand-operated lifting fork truck, owing on the shovel frame, set up lash adjusting device, quick clutch self-locking device and telescopic rocker arm bar in transmission device, have been designed, on front-wheel, designed the front-wheel brake gear, thereby this fork truck also has following advantage except that the function with general hydraulic lifting fork truck and electric up-down fork truck:
1, because rocking lever can telescopic moving in rocker arm bracket, thereby the length of the arm of force is regulated at will as required, extending power pole length is to increase moment when the fork truck load-carrying promotes, and decline power bar can shorten with the object deadweight during unloading, reaches purpose quick and portably.
2, the design of quick clutch self-locking device is used, and makes the shovel frame will rise promptly and rises, and fall promptly and fall, one stops promptly ending, and its deceleration and stopping performance is quick, sensitive, reliable.
3, the hand-operated lifting fork truck need not propulsions source such as power supply, hydraulic pressure, do not have defectives such as greasy dirt, spark, thereby use occasion is unrestricted, and comformability is strong.
4, on turning rolls, set up clearance adjustment mechanism, improved the stability of shovel frame work.
5, complete machine has brake equipment on trailing wheel, on front-wheel the design brake gear is arranged, thereby complete machine move stop the back wheel can not rotate, help safe in operation.
Hand-operated lifting fork truck of the present utility model can be implemented with reference to diagramatic way.
Fig. 1, hand-operated lifting fork truck complete machine structure left view
Fig. 2, hand-operated lifting fork truck complete machine structure front view
Fig. 3, hand-operated lifting fork truck complete machine structure right elevation
Fig. 4, transmission device structural representation
Fig. 5, A-A section-drawing
Fig. 6, lash adjusting device structural representation
Fig. 7, front-wheel brake gear structural representation
Hand-operated lifting fork truck of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3, it is made up of door frame 2, shovel frame 1, transmission device 11, front-wheel brake gear and mobile wheel etc.Door frame is to make framed structure by the scalene channel-section steel, the back is installed in its bottom moves left and right each one of wheel 12 and reach driving wheel 13, forward and backward mobile wheel each minute, and structure is identical.Steel rope washer 4, top sheave 5 are housed on the crossbeam at door frame top, and an end of the steel rope 3 that lifting shovel frame is used is fixing by steel rope washer 4, and the other end uses dog and screw etc. fixing by lower sheave 9, top sheave 5 to outer drum 33.Shovel fork 8, lower sheave 9 and turning rolls 7 are installed on the shovel frame, shovel fork 8 is connected with the shovel frame by shovel fork cotter axle 6, in fact left and right as shown in Figure 6 each one of turning rolls 7, structure is identical, be full of the installation direction difference, one is installed on the support of the shovel frame left side, and another is installed on the support of the right, fixes by welding and shovel frame.A pair of big roller 51 and 55 are arranged on the turning rolls, pair roller frame 58 arrangement that is centrosymmetric, it be by dowel fixes on turning rolls 58.A pair of trundle 52,54 is installed, trundle frame 53 and two trundle governing screw 56 and 57 lash adjusting devices of forming on turning rolls.Wherein trundle 52 and trundle 54 are contained on the trundle frame 53 by pin, and trundle governing screw 56 and an end of 57 are through on the trundle frame 53, and the other end and big roller frame 58 are connected by nut.Transmission device 11 is made up of rocker mechanism and drum mechanism two parts in the mechanism housing 29.As shown in Figure 4, wherein rocker mechanism by rocker shaft 41, bearing, fast clutch self-locking device, flywheel 38, track adjusting wheel 39 is formed and be installed on the support 42.Bearing I 37 is housed and bearing I I40 freely rotates with the supporting rocker shaft at an end of rocker shaft, wherein bearing I I40 is contained on the support 42, and bearing I 37 is contained in the bearing seat 36, and bearing seat 36 is contained on the support 42.Flywheel 38 and track adjusting wheel 39 are housed between bearing I and bearing I I, and flywheel 38 is chain gear with sprocket wheel 31, and track adjusting wheel 39 play the guiding role when twining at steel rope.On the other end axle of rocker shaft 41, be shaped on the four-head screw thread, pawl seat 22 and rocker arm bracket 21 just cover are threaded in the above, telescopic rocking lever 10 is housed in rocker arm bracket 21, and the clutch self-locking device is made up of rocker arm bracket 21, pawl seat 22, ratchet 25, internal friction sheet 24, outer Friction disk 23 and ratchet 27 fast.Wherein in the middle of internal friction sheet and the outer Friction disk ratchet 25 is housed, inside and outside Friction disk and ratchet all are enclosed within on the pawl seat.One end of ratchet screw 26 is contained on the support 42 of mechanism housing 29 inboards, and the other end of ratchet screw is equipped with ratchet spring 28 and ratchet 27, and ratchet enters in the tooth of ratchet as shown in Figure 5.Drum mechanism is: the chain core wheel cover 30 and drum heart cover 34 is housed on drum axle 35, sprocket wheel 31 is housed on the chain wheel core housing, on the drum core retainer plate, being equipped with in drum 32 with outside drum 33.Sprocket wheel 31 and flywheel 38 are by chain gear.The front-wheel brake gear is actually a connecting rod mechanism, as shown in Figure 7.It is made up of the system handlebar 61, brake top rod 62, brake transverse axis 63, brake lower link 64, brake spring 65 and the braking vane 66 that are contained on the door frame 2.Wherein brake is connected 61 by screw with an end of brake top rod 62, the brake top rod the other end by screw retention the brake transverse axis on, one end of brake lower link is fixed with screw and brake transverse axis by lug, be connected with braking vane behind brake spring of other end cover of brake lower link, an end of braking vane by screw retention on front wheel carrier.On left and right 2 front-wheels brake gear is housed all, structure is identical.The hand-operated lifting fork truck that designs and produces according to such scheme, its principle of work is as follows: when hand rocking lever (be called for short power bar) when making garden Zhou Yundong, owing to the relation of four-head screw thread in the quick clutch self-locking device promotes Friction disk fast ratchet is locked into when clockwise rotating the rotation of rocking lever drive rocker arm bracket, pawl seat drives the rocker shaft rotation, the flywheel of leading, the equidirectional rotation of track adjusting wheel, flywheel drives sprocket wheel, sprocket wheel and drum are coaxial rotation, thereby steel rope is by last, lower sheave begins to reel, the shovel frame rises to needed height thus, behind the rocking lever that stops operating, because shovel frame deadweight effect will drive the flywheel counter-rotating, the flywheel counter-rotating drives the rocker shaft counter-rotating, the four-head screw of leading advances fast, and Friction disk is wiped mutually with ratchet, and ratchet has been prevented ratchet and pawl seat counter-rotating, play self-locking action, the shovel frame stops to move.When the counter-rotating of power bar promptly rotated counterclockwise, rocker arm bracket unclamped Friction disk, and ratchet is inoperative, utilization is shoveled frame gravity and is descended, and descends as stopping when dropping to desired height, then stops the counter-rotating of power bar, the mortice lock that rubs this moment advances ratchet, and ratchet props up ratchet and plays brake action again.So because the design of quick clutch self-locking device application makes the shovel frame will rise promptly and rise that will fall promptly and fall, one stops promptly ending, and operates freely, its deceleration and stopping performance is quick, sensitive, reliable.
Claims (2)
1, a kind of by door frame 2, shovel frame 1, the transmission device 11 of quick clutch self-locking device is housed, the hand-operated lifting fork truck that front-wheel brake gear and mobile wheel are formed, it is characterized in that on shovel frame 1, the identical turning rolls of a pair of structure being housed, lash adjusting device is housed on turning rolls, it is by trundle 52, trundle 54, trundle frame 53 and two trundle governing screw 56 and 57 are formed, wherein trundle 52 and trundle 54 are contained on the trundle frame 53 by pin, trundle governing screw 56 and an end of 57 are through on the trundle frame 53, the other end and big roller frame 58 are connected by nut, transmission device 11 is made up of rocker mechanism and the drum mechanism in the mechanism housing 29, the quick clutch self-locking device of wherein adorning on the rocker mechanism inner rocker axle is by rocker arm bracket 21, pawl seat 22, ratchet 25, internal friction sheet 24, outer Friction disk 23 and ratchet 27 are formed, the back was enclosed within on the pawl seat 22 with Friction disk in the middle of ratchet 25 was contained in internal friction sheet 24 and outer Friction disk 23, ratchet 27 is contained on the ratchet screw 26, pawl seat 22 and rocker arm bracket 21 are threaded above being enclosed within the rocker shaft 41 that is shaped on the four-head screw thread, the front-wheel brake gear is by being contained in brake on the door frame 61, brake top rod 62, brake transverse axis 63, brake lower link 64, brake spring 65 and braking vane 66 are formed, wherein brake is connected the end with the brake top rod by screw, the brake top rod the other end by screw retention the brake transverse axis 63 on, one end of brake lower link 64 is fixed with screw and brake transverse axis by lug, brake spring of other end cover 65 backs of brake lower link are connected with braking vane 66, braking vane by screw retention on front wheel carrier.
2, hand-operated lifting fork truck according to claim 1 is characterized in that being equipped with telescopic rocking lever 10 in rocker arm bracket 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96230328 CN2286748Y (en) | 1996-07-24 | 1996-07-24 | Hand-driven lifting forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96230328 CN2286748Y (en) | 1996-07-24 | 1996-07-24 | Hand-driven lifting forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2286748Y true CN2286748Y (en) | 1998-07-29 |
Family
ID=33907788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96230328 Expired - Fee Related CN2286748Y (en) | 1996-07-24 | 1996-07-24 | Hand-driven lifting forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2286748Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301906A (en) * | 2013-06-27 | 2013-09-18 | 沈阳铝镁设计研究院有限公司 | Method and structure for ensuring synchronization of notch wheels of reciprocating material pulverizing machine |
| CN104787702A (en) * | 2015-02-14 | 2015-07-22 | 合肥誉联信息科技有限公司 | Speed reduction device of hand fork lifter |
| CN108046175A (en) * | 2017-12-27 | 2018-05-18 | 合肥仨力机械制造有限公司 | A kind of self-locking freight lifting fork truck |
| CN111031991A (en) * | 2017-08-30 | 2020-04-17 | 凯拉米德公司 | Person lifting device and method for generating power for person lifting device |
-
1996
- 1996-07-24 CN CN 96230328 patent/CN2286748Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301906A (en) * | 2013-06-27 | 2013-09-18 | 沈阳铝镁设计研究院有限公司 | Method and structure for ensuring synchronization of notch wheels of reciprocating material pulverizing machine |
| CN103301906B (en) * | 2013-06-27 | 2016-01-13 | 沈阳铝镁设计研究院有限公司 | A kind ofly ensure the Material disintegrator structure that reciprocating Material disintegrator ratchet is synchronous |
| CN104787702A (en) * | 2015-02-14 | 2015-07-22 | 合肥誉联信息科技有限公司 | Speed reduction device of hand fork lifter |
| CN111031991A (en) * | 2017-08-30 | 2020-04-17 | 凯拉米德公司 | Person lifting device and method for generating power for person lifting device |
| CN111031991B (en) * | 2017-08-30 | 2022-05-24 | 凯拉米德公司 | Person lifting device and method for generating power for person lifting device |
| CN108046175A (en) * | 2017-12-27 | 2018-05-18 | 合肥仨力机械制造有限公司 | A kind of self-locking freight lifting fork truck |
| CN108046175B (en) * | 2017-12-27 | 2019-07-02 | 合肥仨力机械制造有限公司 | A kind of self-locking freight lifting fork truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |