CN104192186A - Manual power assisting device of carrying vehicle - Google Patents
Manual power assisting device of carrying vehicle Download PDFInfo
- Publication number
- CN104192186A CN104192186A CN201410402388.8A CN201410402388A CN104192186A CN 104192186 A CN104192186 A CN 104192186A CN 201410402388 A CN201410402388 A CN 201410402388A CN 104192186 A CN104192186 A CN 104192186A
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- ratchet
- shifting block
- rocking arm
- transport trolley
- connecting rod
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Abstract
The invention provides a manual power assisting device of a carrying vehicle. The manual power assisting device of the carrying vehicle solves the problem that an existing manual carrying vehicle moves difficultly when being overloaded or moving uphill with loads, and is capable of effectively improving the transferring efficiency of cargos. The manual power assisting device of the carrying vehicle comprises a rear driving wheel on the rear portion of the carrying vehicle, a rocker arm, a ratchet wheel, a control mechanism, a shifting rod and a connecting rod mechanism. An axial extending end is arranged on the outer side of an axle of the driving wheel. The rocker arm is rotatably connected to the axial extending end of the axle. The ratchet wheel is mounted at the axial extending end of the axle and is placed on the axial outer side of the rocker arm. The control mechanism controls the rotating direction of the ratchet wheel and shifts the ratchet wheel to rotate, the control mechanism is mounted on the rocker arm, the control mechanism is provided with a pawl, and the pawl is meshed with ratchet teeth of the ratchet wheel. The shifting rod is rotatably connected to a frame of the carrying vehicle. One end of the connecting rod mechanism is connected with the shifting rod, and the other end of the connecting rod mechanism is rotatably connected to the rocker arm.
Description
Technical field
The present invention relates to carrying vehicle field, especially relate to Hand Truck field, be specially the hand-operated booster unit of transport trolley.
Background technology
Conventionally many transhipments that realize goods by transport trolley in commercial production, and transport for the short range of middle-size and small-size goods, be subject to its transhipment distance short and be subject to the restriction in transfer operation space adopt simple in structure, with manual transport trolley flexibly, realize, as common manual carrier-and-stacker, tray truck (see figure 9) etc., thereby it is all by operating personal Manual-pushing or drags the movement that the drawbar 80 being connected with car body is realized car body, but when manual transport trolley carries overweight, or load-carrying is gone up a slope while advancing, only depend on single Manual-pushing or drag comparatively difficulty, have a strong impact on handling efficiency.
Summary of the invention
For the problems referred to above, the invention provides the hand-operated booster unit of transport trolley, it can solve when existing manual transport trolley carries overweight or load-carrying upward slope and move difficult problem, and can effectively improve cargo transfer efficiency.
Its technical scheme is such, it is characterized in that: it comprises
Transport trolley rear portion drive wheel, the outside of the wheel shaft of described drive wheel is provided with axial external part;
One rocking arm, described rocking arm is rotationally connected with on described axle axial external part;
One ratchet, described ratchet is installed on the axial external part of described wheel shaft and is positioned at the axial outside of described rocking arm;
One controls ratchet rotation direction and can stir the control mechanism that described ratchet rotates, and described control mechanism is installed on described rocking arm and can rotates with described synchronous rocker, and described control mechanism is provided with ratchet, described ratchet can with the ratchet engagement of described ratchet;
One driving lever, described driving lever is rotationally connected with on the vehicle frame of transport trolley;
Connecting rod mechanism, described connecting rod mechanism one end is connected with described driving lever, the other end is rotationally connected with described rocking arm.
It is further characterized in that:
Described control mechanism comprises a shifting block and for described shifting block is carried out to spacing locating part, described shifting block is rotatably installed on described rocking arm, described shifting block is provided with two described ratchets, the opposite direction of described two ratchets, rotating described shifting block can make the ratchet of ratchet and described ratchet described in one of them in engagement, or make two described ratchets all with the ratchet of described ratchet in released state, thereby holding out against the ratchet that described shifting block guarantees described shifting block all the time, described locating part can keep engagement with the ratchet of ratchet, or released state, described shifting block, locating part can rotate along with described synchronous rocker, when one of them ratchet of shifting block and the ratchet of ratchet are during in engagement, rocking arm drives shifting block to rotate, and the ratchet of shifting block is stirred ratchet and only can or be rotated counterclockwise along single direction cw, thereby it is mobile or only retreat movement to realize only advancing of drive wheel, when two ratchets in shifting block and the ratchet of ratchet are all processed released state, drive wheel can rotate arbitrarily under the promotion of manpower or pulling function,
Described shifting block is rotationally connected with described rocking arm by rotating shaft and hexagonal nut, the axle center of described wheel shaft, the axle center of shifting block rotating shaft, and the line of 3 of the rotating shaft cores of described rocking arm and connecting rod mechanism remains at the state of a straight line, described shifting block is along the axial symmetrical ingot-shaped of line of 3 described in this, the end face of described ingot-shaped shifting block is the face of stirring towards described ratchet ratchet, bottom surface is the confined planes of described shifting block, described two the described ratchets that are provided with of stirring face, between described two ratchets stirring face, be provided with the projection of a circular arc, described locating part holds out against described confined planes all the time.
As preferably, described locating part is elastic component, and the confined planes of described shifting block is provided with the axial symmetrical circular arc projection of line of two along described 3, and described locating part holds out against circular arc projection described at least one of described confined planes all the time.
As further preferred, described locating part is spring leaf, described spring leaf comprises base plate and the positioning plate that is anti-L shaped connection, described base plate is fixed on described rocking arm, the rotating shaft of described shifting block is through being connected on described rocking arm after the base plate of described spring leaf, and described positioning plate holds out against circular arc projection described at least one of described shifting block confined planes all the time.
Described connecting rod mechanism comprises connecting rod and support plate, and described support plate is installed on described driving lever, and one end of described connecting rod and described rocking arm are rotationally connected, the other end and described support plate are rotationally connected;
As preferably, the drawbar of described driving lever for moving for dragging transport trolley, described drawbar is rotationally connected with on described vehicle frame, and described drawbar is connected with described control mechanism by described connecting rod mechanism.
Beneficial effect of the present invention is:
(1) it is simple in structure, easy to use, it utilizes lever principle, thereby drive the rocking arm being rotationally connected with connecting rod mechanism to rotate by rotating lever drive link mechanism, and control its ratchet and stir one and be installed on drive wheel wheel dog end and rotate by being installed on control mechanism on rocking arm, afterwards by ratchet, drive drive wheel to rotate, thereby realize the power-assisted effect to manual transport trolley, it can play effective power-saving function, greatly reduce workman's labour intensity, improve cargo transfer efficiency; And control mechanism can be controlled the rotation direction of ratchet, thereby realize transport trolley, advance or retreat Shi Junneng and reach labour-saving effect;
(2) its control mechanism only comprises shifting block and a locating part that is provided with two ratchets, by rotating shifting block, can make the ratchet engagement of one of them ratchet and ratchet, and due to two ratchet opposite directions of shifting block, therefore different ratchets can be controlled the different of ratchet from ratchet engagement and turn to, thereby realize the control that handling hand is advanced or retreated; Locating part can hold out against shifting block spacing, shifting block can not be rotated arbitrarily, unless shifting block can be offset under external force locating part and could be rotated its pressure, thereby the ratchet of its energy Reliable guarantee shifting block can be nibbled with the sour jujube of ratchet maintenance engagement or released state; This control mechanism is simple in structure, convenient for the control of ratchet rotation direction;
(3) line of 3 of the axle center of the axle center of its drive wheel wheel shaft, shifting block rotating shaft and the rotating shaft cores of rocking arm and connecting rod mechanism remains at the state of a straight line, has guaranteed that rocking arm, shifting block, ratchet and drive wheel synchronously rotate under the driving of driving lever and connecting rod mechanism;
(4) its locating part is elastic component, is especially spring leaf, and it is simple in structure, and shifting block confined planes is provided with the axial symmetrical circular arc projection of line of two along 3, can further guarantee that spring leaf is spacing reliable to shifting block;
(5) driving lever in apparatus of the present invention can be by replacing for dragging the drawbar that transport trolley moves, drawbar is directly rotationally connected with on vehicle frame, and drawbar is connected with control mechanism by connecting rod mechanism, thereby the highly versatile of apparatus of the present invention, applied widely, can be applicable to the various manual transport trolleys such as plate pusher, hand push carrier-and-stacker, hand push simple forklift.
Accompanying drawing explanation
Fig. 1 is the hand-operated booster unit structural representation of transport trolley of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of shifting block in the hand-operated booster unit of transport trolley of the present invention;
Fig. 3 is the be hit by a bullet structure for amplifying schematic diagram of reed of the hand-operated booster unit of transport trolley of the present invention;
Fig. 4 is that the A-A of Fig. 3 is to structural representation;
Fig. 5 is the hand-operated booster unit forward travel state structural representation of transport trolley of the present invention;
Fig. 6 is the hand-operated booster unit fallback state structural representation of transport trolley of the present invention;
Fig. 7 is the schematic diagram that the hand-operated booster unit of transport trolley of the present invention is applied to hand push carrier-and-stacker;
Fig. 8 is the schematic diagram that the hand-operated booster unit of transport trolley of the present invention is applied to hand push simple forklift;
Fig. 9 is the structural representation of existing common tray truck.
The specific embodiment
See Fig. 1, it comprises the present invention
Transport trolley rear portion drive wheel 10, the outside of the wheel shaft 11 of drive wheel 10 is provided with axial external part;
One rocking arm 20, rocking arm 20 is rotationally connected with on the axial external part of wheel shaft 11;
One ratchet 30, ratchet 30 is installed on the axial external part of described wheel shaft 11 and is positioned at the axial outside of rocking arm 20;
One controls ratchet rotation direction and can stir the control mechanism 40 that ratchet rotates, and described control mechanism 40 is installed on rocking arm 20 and can synchronously rotates with rocking arm 20, and control mechanism 40 is provided with ratchet, ratchet can with the ratchet engagement of ratchet 30;
One driving lever 50, driving lever 50 is rotationally connected with on the vehicle frame 70 of transport trolley;
One connecting rod mechanism 60, connecting rod mechanism 60 one end are connected with driving lever 50, the other end is rotationally connected with described rocking arm 20.
Wherein control mechanism 40 comprises a shifting block 41 and for shifting block 41 is carried out to spacing locating part 42, shifting block 41 is rotatably installed on rocking arm 20, shifting block 41 is provided with two ratchet 411a, 411b, two ratchet 411a, the opposite direction of 411b, rotating shifting block 41 can make the ratchet of one of them ratchet 411a or 411b and ratchet 30 in engagement, or make two ratchet 411a, ratchet 30 ratchets of 411b and ratchet are all in released state, locating part 42 is installed on rocking arm 20 and thereby locating part 42 holds out against all the time ratchet 411a or the 411b that shifting block 41 guarantees shifting blocks 41 and can nibble with the sour jujube of ratchet 30 maintenance engagement, or released state, shifting block 41, locating part 42 can synchronously rotate along with rocking arm 20, when one of them ratchet 411a of shifting block 41 or the ratchet of 411b and ratchet 30 are during in engagement, rocking arm 20 drives shifting blocks 41 to rotate, the ratchet 411a of shifting block 41 or 411b stir ratchet 30 and only can or rotate counterclockwise along single direction cw, thereby it is mobile or only retreat movement to realize only advancing of drive wheel 10, when two ratchet 411a, 411b in shifting block 41 and the ratchet of ratchet 30 are all processed released state, drive wheel 10 can rotate arbitrarily under the promotion of manpower or pulling function,
Shifting block 41 is rotationally connected with rocking arm 20 by rotating shaft 412 and hexagonal nut 417, the axle center B of wheel shaft 11, the axle center C of shifting block rotating shaft 412, and the line of 3 of the rotating shaft core D of rocking arm 20 and connecting rod mechanism remains at the state of a straight line, shifting block 41 is along the axial symmetrical ingot-shaped of this line of 3, the end face of ingot-shaped shifting block 41 is the face of stirring 413 towards ratchet ratchet, bottom surface is the confined planes 414 of shifting block, see Fig. 2, stir face 413 and be provided with two ratchets 411, stir two ratchet 411a of face, between 411b, be provided with the projection 415 of a circular arc, locating part 42 holds out against confined planes 414 all the time,
Locating part 42 is installed on rocking arm 20, locating part 42 is elastic component, the confined planes 414 of shifting block 41 is provided with line axial symmetrical circular arc projection 416a, the 416b of at two along 3, and locating part 42 holds out against at least one circular arc projection 416a or 416b of described confined planes 414 all the time.
See Fig. 3 and Fig. 4, locating part 42 is spring leaf, spring leaf comprises base plate 421 and the positioning plate 422 that is anti-L shaped connection, base plate 421 is fixed on rocking arm 20, after the shaft hole 424 of the rotating shaft 412 of shifting block 41 through the base plate 421 of spring leaf, be connected on rocking arm 20, positioning plate 422 holds out against at least one circular arc projection 416a or 416b of shifting block confined planes 414 all the time; In Fig. 3,423 is for being fixedly connected with the mounting hole of base plate 421 and rocking arm 20.
Connecting rod mechanism 60 comprises connecting rod 61 and support plate 62, and support plate 62 is installed on driving lever 50, and one end of connecting rod 62 and rocking arm 20 are rotationally connected, the other end and support plate 62 are rotationally connected.
Below in conjunction with accompanying drawing, specifically describe the working process of apparatus of the present invention:
When transport trolley is unloaded or do not need to adopt work-saving device of the present invention, see Fig. 1, two circular arc projection 416a, 416b shifting block 41 being gone to its confined planes 414 are held out against location by spring leaf 42 simultaneously and can not freely rotate, and now by manpower, can promote arbitrarily or pull transport trolley freely advance or retreat;
When transport trolley heavy burden is advanced, first pressing down driving lever 50 makes it around vehicle frame 70 clickwises, driving lever 50 is by support plate 62 simultaneously, connecting rod 61 drives rocking arm 20 around rotating shaft 11 clickwises of drive wheel 10, then manually rotate counterclockwise the ratchet engagement that shifting block 41 makes ratchet 411a and the ratchet 10 of shifting block 41, now spring leaf 42 holds out against the circular arc projection 416b of shifting block 41, see Fig. 5, upwards promoting driving lever 50 makes it to rotate counterclockwise around vehicle frame 70 again, driving lever 50 is by support plate 62 simultaneously, connecting rod 61 drives rocking arm 20 to rotate counterclockwise around the rotating shaft 11 of drive wheel 10, and because shifting block 41 is held out against location by spring leaf 42 all the time and cannot freely rotate, therefore in rocking arm 20 rotation processes, shifting block 41 also synchronously rotates thereupon, afterwards the ratchet 411a of the shifting block 41 in engagement promotes ratchet 10 and synchronizes and rotate counterclockwise with the ratchet of ratchet 10, thereby driving is moved car drive wheel 10 conter clockwises and is rotated and advance forward,
When transport trolley heavy burden retreats, first manually rotate counterclockwise the ratchet engagement that shifting block 41 makes ratchet 411b and the ratchet 10 of shifting block 41, now spring leaf 42 holds out against the circular arc projection 416a of shifting block 41, then pressing down driving lever 50 makes it around vehicle frame 70 clickwises, driving lever 50 is by support plate 62 simultaneously, connecting rod 61 drives rocking arm 20 around rotating shaft 11 clickwises of drive wheel 10, because shifting block 41 is held out against location by spring leaf 42 all the time and cannot freely rotate, therefore in rocking arm 20 clockwise rotates process, shifting block 41 also synchronously rotates thereupon, afterwards the ratchet 411b of the shifting block 41 in engagement promotes ratchet 10 and synchronizes and clockwise rotate with the ratchet of ratchet 10, thereby drive and to move car drive wheel 10 cws and rotate backward and advance, see Fig. 6.
The highly versatile of apparatus of the present invention, applied widely, be applicable to the various manual transport trolleys such as plate pusher, hand push carrier-and-stacker, hand push simple forklift, see Fig. 7 and Fig. 8.Driving lever 50 in apparatus of the present invention can be rotationally connected with separately the vehicle frame of transport trolley, also can be directly by dragging the drawbar that transport trolley moves, replaces, and only drawbar need be rotationally connected with on vehicle frame 70, and drawbar is connected with control mechanism 40 by connecting rod mechanism 60 again.
Claims (7)
1. the hand-operated booster unit of transport trolley, is characterized in that: it comprises
Transport trolley rear portion drive wheel (10), the outside of the wheel shaft (11) of described drive wheel (10) is provided with axial external part;
One rocking arm (20), described rocking arm (20) is rotationally connected with on the axial external part of described wheel shaft (11);
One ratchet (30), described ratchet (30) is installed on the axial external part of described wheel shaft (11) and is positioned at the axial outside of described rocking arm (20);
One controls ratchet rotation direction and can stir the control mechanism (40) that described ratchet rotates, described control mechanism (40) is installed on described rocking arm (20) above and can synchronously rotates with described rocking arm (20), described control mechanism (40) is provided with ratchet, described ratchet can with the ratchet engagement of described ratchet (30);
One driving lever (50), described driving lever (50) is rotationally connected with on the vehicle frame (70) of transport trolley;
One connecting rod mechanism (60), described connecting rod mechanism (60) one end is connected with described driving lever (50), the other end is rotationally connected with described rocking arm (20).
2. the hand-operated booster unit of transport trolley according to claim 1, it is characterized in that: described control mechanism (40) comprises a shifting block (41) and for described shifting block (41) is carried out to spacing locating part (42), described shifting block (41) is rotatably installed on described rocking arm (20), described shifting block (41) is provided with two described ratchets (411a), (411b), described two ratchets (411a), (411b) opposite direction, rotate described shifting block (41) can make one of them ratchet (411a) or (411b) and the ratchet of described ratchet (30) in engagement, or make two described ratchets (411a), (411b) with ratchet (30) ratchet of described ratchet all in released state, described locating part (42) be installed in the upper and described locating part (42) of described rocking arm (20) hold out against all the time described shifting block (41) thus guarantee the ratchet (411a) of described shifting block (41) or (411b) can keep engagement with the ratchet of ratchet (30), or released state, described shifting block (41), locating part (42) can synchronously rotate along with described rocking arm (20).
3. the hand-operated booster unit of transport trolley according to claim 2, it is characterized in that: described shifting block (41) is rotationally connected with described rocking arm (20) by rotating shaft (412) and hexagonal nut (417), the axle center of described wheel shaft (11), the axle center of shifting block rotating shaft (412), and the line of 3 of the rotating shaft cores of described rocking arm (20) and connecting rod mechanism remains at the state of a straight line, described shifting block (41) is along the axial symmetrical ingot-shaped of line of 3 described in this, the end face of described ingot-shaped shifting block (41) is the face of stirring (413) towards described ratchet ratchet, bottom surface is the confined planes (414) of described shifting block, the described face (413) of stirring is provided with two described ratchets (411), described two ratchets (411a) of stirring face, (411b) between, be provided with the projection (415) of a circular arc, described locating part (42) holds out against described confined planes (414) all the time.
4. the hand-operated booster unit of transport trolley according to claim 3, it is characterized in that: described locating part (42) is elastic component, the confined planes (414) of described shifting block (41) is provided with axial symmetrical circular arc projection (416a), (416b) of line of two along described 3, and described locating part (42) holds out against circular arc projection described at least one of described confined planes (414) all the time.
5. the hand-operated booster unit of transport trolley according to claim 4, it is characterized in that: described locating part (42) is spring leaf, described spring leaf comprises base plate (421) and the positioning plate (422) that is anti-L shaped connection, described base plate (421) is fixed on described rocking arm (20), the rotating shaft (412) of described shifting block (41) is upper through being connected in described rocking arm (20) after the base plate (421) of described spring leaf, and described positioning plate (422) holds out against circular arc projection described at least one of described shifting block confined planes (414) all the time.
6. the hand-operated booster unit of transport trolley according to claim 1, it is characterized in that: described connecting rod mechanism (60) comprises connecting rod (61) and support plate (62), described support plate (62) is installed on described driving lever (50), and one end of described connecting rod (62) and described rocking arm (20) are rotationally connected, the other end and described support plate (62) are rotationally connected.
7. according to the hand-operated booster unit of arbitrary described transport trolley in claim 1～6, it is characterized in that: the drawbar of described driving lever (50) for moving for dragging transport trolley, it is upper that described drawbar is rotationally connected with described vehicle frame (70), and described drawbar is connected with described control mechanism (40) by described connecting rod mechanism (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402388.8A CN104192186B (en) | 2014-08-15 | 2014-08-15 | The hand-operated booster unit of mover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402388.8A CN104192186B (en) | 2014-08-15 | 2014-08-15 | The hand-operated booster unit of mover |
Publications (2)
| Publication Number | Publication Date |
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| CN104192186A true CN104192186A (en) | 2014-12-10 |
| CN104192186B CN104192186B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410402388.8A Active CN104192186B (en) | 2014-08-15 | 2014-08-15 | The hand-operated booster unit of mover |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329285A (en) * | 2015-10-30 | 2016-02-17 | 宁波如意股份有限公司 | Manual pallet jack with power assisting device |
| CN105818850A (en) * | 2016-05-24 | 2016-08-03 | 北方民族大学 | Ladder-climbing cart power assisting device and ladder-climbing cart |
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| US2620198A (en) * | 1948-01-31 | 1952-12-02 | Gen Fluid Machinery Company | Tractor jack |
| US3549161A (en) * | 1968-09-20 | 1970-12-22 | Russell J Pusztay | Power assist hand truck |
| US3937479A (en) * | 1972-03-30 | 1976-02-10 | Dalton Virgil D | Dolly for moving and positioning vehicles |
| CN2189102Y (en) * | 1994-05-27 | 1995-02-08 | 柯正来 | Hand propelled track type vehicle for going up building |
| CN101370700A (en) * | 2006-01-23 | 2009-02-18 | Ph.B创新有限公司 | System for assisting with starting pulled or pushed carriages |
| CN204077745U (en) * | 2014-08-15 | 2015-01-07 | 无锡爱一力机械有限公司 | A kind of hand-operated booster unit of transport trolley |
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2014
- 2014-08-15 CN CN201410402388.8A patent/CN104192186B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2620198A (en) * | 1948-01-31 | 1952-12-02 | Gen Fluid Machinery Company | Tractor jack |
| US3549161A (en) * | 1968-09-20 | 1970-12-22 | Russell J Pusztay | Power assist hand truck |
| US3937479A (en) * | 1972-03-30 | 1976-02-10 | Dalton Virgil D | Dolly for moving and positioning vehicles |
| CN2189102Y (en) * | 1994-05-27 | 1995-02-08 | 柯正来 | Hand propelled track type vehicle for going up building |
| CN101370700A (en) * | 2006-01-23 | 2009-02-18 | Ph.B创新有限公司 | System for assisting with starting pulled or pushed carriages |
| CN204077745U (en) * | 2014-08-15 | 2015-01-07 | 无锡爱一力机械有限公司 | A kind of hand-operated booster unit of transport trolley |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329285A (en) * | 2015-10-30 | 2016-02-17 | 宁波如意股份有限公司 | Manual pallet jack with power assisting device |
| CN105818850A (en) * | 2016-05-24 | 2016-08-03 | 北方民族大学 | Ladder-climbing cart power assisting device and ladder-climbing cart |
| CN105818850B (en) * | 2016-05-24 | 2017-11-14 | 北方民族大学 | Climb ladder dolly power assisting device and climb ladder dolly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104192186B (en) | 2016-09-07 |
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