CN211568016U - Steering system for multifunctional electric shopping cart - Google Patents
Steering system for multifunctional electric shopping cart Download PDFInfo
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- CN211568016U CN211568016U CN201922183243.4U CN201922183243U CN211568016U CN 211568016 U CN211568016 U CN 211568016U CN 201922183243 U CN201922183243 U CN 201922183243U CN 211568016 U CN211568016 U CN 211568016U
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- 238000006073 displacement reaction Methods 0.000 description 4
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Abstract
The utility model discloses a steering system for multi-functional electric shopping cart, including rotating the first steering spindle of connecting in telescopic frame, the top of first steering spindle is equipped with the steering wheel that shifts, and first steering spindle transmission is connected in the second steering spindle, second steering spindle vertical drive is connected in central steering mechanism, and central steering mechanism both ends output front wheel steering spindle and rear wheel steering spindle subassembly, the tip of front wheel steering spindle and rear wheel steering spindle subassembly is equipped with preceding swing arm and back swing arm respectively, preceding swing arm promotes or stimulates front wheel A, front wheel A promotes or stimulates front wheel B, back swing arm promotes or stimulates rear wheel B simultaneously, rear wheel B promotes or stimulates rear wheel A, front wheel B, rear wheel A and rear wheel B rotate to be connected in telescopic frame; the rear swing arm can be stretched and retracted back and forth. The utility model discloses a four-wheel steering, turning radius is little, is applicable to the less occasion in spaces such as supermarket, market, mobility and the manipulation portability when improving the shopping cart operation.
Description
Technical Field
The utility model relates to a shopping equipment technical field especially relates to a steering system for multi-functional electronic shopping cart.
Background
The shopping cart is an indispensable tool in our lives, can improve more demands of buyers on one hand and further improve the volume of deals of sellers on the other hand, and can achieve a win-win result of killing two birds at a stroke.
With the improvement of living standard, the times of shopping are more and more frequent. In addition, the shopping cart is difficult to control due to inertia effect when people work for a long time and push the cart or the portable shopping basket for a long time. In addition, the traditional hand-push shopping cart cannot be used when the disabled goes to a supermarket for shopping; in addition, the elderly are weak and the elderly feel tired more and more when walking for a long time, which causes inconvenience.
A few electric shopping carts are adopted in some domestic supermarkets, but the electric shopping carts are labor-saving to push, but the problem of walking fatigue cannot be solved; in addition, some supermarkets also adopt driving shopping carts, but the shopping carts can only be driven, and people need to frequently go up and down when selecting commodities, so that the shopping is not very convenient for people to shop, and the pleasure brought to people by shopping is lost.
Therefore, a shopping cart which can be pushed and driven is needed, and can be switched freely according to the use requirement. But the space of the shopping channel is narrow in order to place more commodities in the supermarket or the shopping mall. Most of the existing steering systems are two-wheel steering, the turning radius is large, and the turning is difficult when the steering system is used in supermarkets or markets, so that the maneuvering performance of the shopping cart is poor.
Therefore, it is necessary to invent a steering system for a multi-functional electric shopping cart to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steering system for multi-functional electronic shopping cart has adopted four-wheel steering, and it is little to turn to the radius, turns to more easily, adopts the steering wheel that shifts, adapts to and drives and push away the operation needs, makes to turn to and controls more nimble light, promotes the mobility and the manipulation portability of shopping cart to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a steering system for a multifunctional electric shopping cart comprises a first steering shaft which is rotationally connected to a telescopic frame, the top end of the first steering shaft is connected with a deflection steering wheel through a turnover device, the first steering shaft is in transmission connection with a second steering shaft, the second steering shaft is in vertical transmission connection with a central steering mechanism, two ends of the central steering mechanism output a front wheel steering shaft and a rear wheel steering shaft assembly, the end parts of the front wheel steering shaft and the rear wheel steering shaft assembly are respectively provided with a front swing arm and a rear swing arm, the front swing arm pushes or pulls a front wheel A, the front wheel A pushes or pulls a front wheel B, the rear swing arm pushes or pulls a rear wheel B, the rear wheel B pushes or pulls the rear wheel A, and the front wheel A, the front wheel B, the rear wheel A and the rear wheel B are rotationally connected to the telescopic frame; the rear swing arm can be stretched and retracted back and forth.
The utility model discloses a further improvement is, the equal fixedly connected with otic placode group in one side of both sides and the rear end of telescopic frame front end, the axle sleeve passes through pivot to be connected in otic placode group, and perpendicular fixedly connected with shaft on the axle sleeve outer wall, the equal fixed connection of front wheel A, front wheel B and rear wheel A is epaxial, and rear wheel B rotates through the knuckle and connects in the opposite side of telescopic frame rear end, and the actuating system drive is connected in rear wheel B.
The utility model discloses a further improvement is, central steering mechanism includes frame and three bevel gear, and three bevel gear is the meshing of falling T font and arranges in the frame, and the frame passes through layer board fixed connection on telescopic frame, and second steering spindle rotates to be connected in the bevel gear on frame and fixed connection in the top, and the front wheel steering spindle rotates to be connected in the bevel gear of frame and fixed connection in front end.
The utility model discloses a further improvement is, rear wheel steering shaft subassembly includes sliding connection's integral key shaft and spline housing, and the integral key shaft rotates to be connected in the bevel gear of frame and fixed connection in the rear end, and back swing arm fixed connection is sheathe in the spline, and the cover is equipped with thrust bearing on the outer wall of spline housing, and thrust bearing is through first horizontal pole and the mobilizable this end fixed connection of telescopic frame.
The utility model discloses a further improvement scheme is, the steering system still includes steering arm a, steering arm b, steering arm c, steering arm d, preceding threaded rod, back threaded rod and both ends screw thread connect with the steering column a, steering column b, steering column c and the steering column d of bulb, the joint of bulb and steering column is equipped with lock nut; the steering arm a, the steering arm B and the steering arm c are fixedly connected with the shaft sleeves corresponding to the front wheel A, the front wheel B and the rear wheel A respectively, and the steering arm d is fixedly connected to the bottom of the steering knuckle.
The utility model has the further improvement that the front threaded rod and the rear threaded rod are both provided with two adjusting nuts, and the top ends of the front threaded rod and the rear threaded rod are provided with a stop dog; one ends of the steering arm a and the steering arm d are hinged to the bottoms of the front threaded rod and the rear threaded rod; one end of the steering rod a is hinged to the top end of the front swing arm, and the other end of the steering rod a is hinged to the top end of the front threaded rod; one end of the steering rod b is hinged to the bottom end of the front threaded rod, and the other end of the steering rod b is hinged to the steering arm b; one end of the steering rod c is hinged to the top end of the rear swing arm, and the other end of the steering rod c is hinged to the top end of the rear threaded rod; one end of the steering rod d is hinged to the bottom end of the rear threaded rod, and the other end of the steering rod d is hinged to the steering arm c.
The utility model has the further improvement that the deflection steering wheel is two symmetrically arranged sections and is in an open concave shape as a whole; the turning device comprises a rotating sleeve, a fixed sleeve and a displacement locking mechanism, two sections of displacement steering wheels are inserted into the inner wall of the rotating sleeve and then fixedly connected into a whole, and the rotating sleeve is rotatably connected to the inner wall of the fixed sleeve; the fixed sleeve comprises a base and a cover plate, and the bottom of the base is fixedly connected with the first steering shaft; the outer wall of the rotating sleeve is provided with a limiting boss along the radial direction, and the inner wall of the fixed sleeve is provided with a limiting groove along the radial direction so as to limit the turning of the deflection steering wheel within a fixed angle range.
The utility model has the further improvement that the dislocation locking mechanism comprises a shifting block, a reset spring, a slide fastener and a positioning leaf spring; the shifting block is axially and slidably connected with a sliding groove in the cover plate, one part of the shifting block is positioned on the outer side of the cover plate, the other part of the shifting block is positioned on the inner side of the cover plate, and the part positioned on the outer side of the cover plate is in a curved surface shape; a spring seat is fixedly connected to the inner wall of the cover plate, and a return spring is placed between one end of the shifting block and the spring seat; one end of the positioning leaf spring is fixedly connected to the bottom end of the shifting block in the cover plate, and the other end of the positioning leaf spring is fixedly connected with the wedge-shaped slide fastener; two locking holes are formed in the deflection steering wheel, and when the deflection steering wheel is turned to two limit angles, the sliding fastener is clamped into the two locking holes.
The utility model has the further improvement that the turning angle range of the deflection steering wheel is between-10 degrees and 110 degrees
The utility model discloses a further improvement is, first steering spindle passes through the universal joint and is connected with the second steering spindle.
The utility model has the advantages that:
first, the utility model discloses a steering system for multi-functional electronic shopping cart adopts the four-wheel to turn to, and turning radius is little, turns to more easily, adopts the steering wheel that shifts, adapts to and drives and carry out the operation needs, makes to turn to and controls more nimble light, is applicable to the less occasion in spaces such as supermarket, market, mobility and the manipulation portability when improving the shopping cart operation.
Second, the utility model discloses a steering system for multi-functional electric shopping cart, back swing arm can back swing arm stretch out and draw back from beginning to end, satisfies the demand of driving and carrying out two kinds of modes.
Third, the utility model discloses a steering system for multi-functional electronic shopping cart, the four-wheel steering mechanism of mechanical type, design, manufacturing cost are lower, and stable in structure is reliable, and is not fragile.
Fourth, the utility model discloses a steering system for multi-functional electronic shopping cart, there is the bulb at the both ends of steering column through threaded connection, can adjust the length of steering column as required, and is more convenient during the installation.
Fifth, the utility model discloses a frame subassembly of driving and carrying dual-purpose electronic shopping cart shifts and rotates around the steering wheel accessible turning device to use when satisfying carrying, driving two kinds of different modes.
Sixth, the utility model discloses a frame subassembly of driving and carrying dual-purpose electronic shopping cart shifts the steering wheel and for two sections that the symmetry set up, and wholly be open-ended character cut in bas-relief, can both guarantee under two kinds of modes that user's both hands are comfortable holds the steering wheel that shifts, can also conveniently shift the assembly between steering wheel and the turning device simultaneously.
Seventh, the utility model discloses a frame subassembly of driving and carrying dual-purpose electronic shopping cart when adjusting the angle of the steering wheel that shifts, only need stir the shifting block with the hand and make the thread slipping break away from the locking hole can, when the steering wheel that shifts reachs suitable angle, loosen the shifting block after, the shifting block receives spring tension to reset, and the thread slipping falls into in the locking hole to can guarantee the quick adjustment steering wheel that shifts.
Drawings
Fig. 1 is an overall structure front view of the present invention.
Fig. 2 is a partial structure front view of the present invention.
Fig. 3 is a partial structure plan view of the present invention.
Fig. 4 is a partially enlarged view of fig. 2.
Fig. 5 is a schematic structural view of the central steering mechanism of the present invention.
Fig. 6 is a schematic structural view of the deflection steering wheel and the turnover device of the present invention.
Fig. 7 is a schematic view of the internal structure of the turnover device of the present invention.
Fig. 8 is a schematic structural view of the shifting locking mechanism of the present invention.
Fig. 9 is a schematic view of the structure of the deflection steering wheel of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
Example 1: as shown in fig. 1 to 9, a steering system for a multifunctional electric shopping cart comprises a first steering shaft 2 rotatably connected to a telescopic frame 1, a tilted support frame 34 is welded at the rear end of the telescopic frame 1, the first steering shaft 2 is connected to the support frame 34 through a bearing, the top end of the first steering shaft 2 is connected to a deflection steering wheel 3 through a turnover device 38, the first steering shaft 2 is in transmission connection with a second steering shaft 4, the second steering shaft 4 is in vertical transmission connection with a central steering mechanism 5, and two ends of the central steering mechanism 5 output a front wheel steering shaft 6 and a rear wheel steering shaft assembly 7, the ends of the front wheel steering shaft 6 and the rear wheel steering shaft assembly 7 are respectively provided with a front swing arm 8 and a rear swing arm 9, the front swing arm 8 pushes or pulls a front wheel a10, the front wheel a10 pushes or pulls a front wheel B11, the rear swing arm 9 pushes or pulls a rear wheel B13, the rear wheel B13 pushes or pulls a rear wheel a12, the front wheel A10, the front wheel B11, the rear wheel A12 and the rear wheel B13 are rotatably connected with the telescopic frame 1; the rear swing arm 9 can be extended and retracted back and forth.
The two sides of the front end and one side of the rear end of the telescopic frame 1 are respectively welded with an ear plate group 14, the shaft sleeves are rotatably connected to the ear plate groups 14 through pivots, wheel shafts 15 are vertically welded on the outer walls of the shaft sleeves (not shown in the figure), a front wheel A10, a front wheel B11 and a rear wheel A12 are all installed on the wheel shafts 15, a rear wheel B13 is installed on the other side of the rear end of the telescopic frame 1 through a steering knuckle 16, and a driving system 17 is in driving connection with the rear wheel B13.
The central steering mechanism 5 comprises a frame 501 and three bevel gears 502, the three bevel gears 502 are arranged in the frame 501 in an inverted T-shaped meshed manner, the frame 501 is welded on the telescopic frame 1 through a supporting plate 35, the second steering shaft 4 is rotatably connected to the frame 501 through a bearing and is fixedly connected to the bevel gear 502 at the top end through an inner hexagonal countersunk head screw, and the front wheel steering shaft 6 is rotatably connected to the frame 501 through a bearing and is fixedly connected to the bevel gear 502 at the front end through an inner hexagonal countersunk head screw.
The rear wheel steering shaft assembly 7 comprises a spline shaft 701 and a spline housing 702 which are in sliding connection, the spline shaft 701 is rotatably connected to the frame 501 through a bearing and fixedly connected to a bevel gear 502 at the rear end through an inner hexagonal countersunk head screw, the rear swing arm 9 is fixedly connected to the spline housing 702, a thrust bearing 18 is sleeved on the outer wall of the spline housing 702, and the thrust bearing 18 is fixedly connected with the movable end of the telescopic frame 1 through a cross rod; the rear swing arm 9 is welded on the spline housing 702, a thrust bearing 18 is sleeved on the outer wall of the spline housing 702, the thrust bearing 18 is in interference fit with the spline housing 702, and the thrust bearing 18 is welded with the telescopic frame 1 through a first cross rod 19, so that the spline housing 702 can move along with the telescopic frame 1, and the spline housing 702 can rotate along with the spline shaft 701; and the front wheel steering shaft 6 is arranged on a second cross rod 36 of the telescopic frame 1 through a bearing seat, then penetrates through the front end of the telescopic frame 1 and is arranged on the telescopic frame 1 through another bearing seat.
The steering system also comprises a steering arm a20, a steering arm b21, a steering arm c22, a front threaded rod 24, a rear threaded rod 25, a steering arm d23, a steering rod a27, a steering rod b28, a steering rod c29 and a steering rod d30, wherein the two ends of the steering rod a27, the two ends of the steering rod b28, the two ends of the steering rod c29 and the two ends of the steering rod d30 are in threaded connection with a ball head 26, and a locking nut 31 is; the steering arm a20, the steering arm B21 and the steering arm c22 are respectively welded with the corresponding shaft sleeves of the front wheel A10, the front wheel B11 and the rear wheel A12, and the steering arm d23 is fixed or welded at the bottom of the steering knuckle 16 through bolts; the front threaded rod 24 and the rear threaded rod 25 are both provided with two adjusting nuts 32, and the top ends of the front threaded rod 24 and the rear threaded rod 25 are welded or connected with a stop dog 37 through threads; one ends of the steering arm a20 and the steering arm d23 are hinged to the bottoms of the front threaded rod 24 and the rear threaded rod 25; one end of the steering rod a27 is hinged to the top end of the front swing arm 8, and the other end is hinged to the top end of the front threaded rod 24; one end of the steering rod b28 is hinged to the bottom end of the front threaded rod 24, and the other end of the steering rod b28 is hinged to the steering arm b 21; one end of the steering rod c29 is hinged to the top end of the rear swing arm 9, and the other end is hinged to the top end of the rear threaded rod 25; one end of the steering rod d30 is hinged to the bottom end of the rear threaded rod 25, and the other end is hinged to the steering arm c 22.
The deflection steering wheel 3 is two symmetrically arranged sections and is integrally in a concave shape with an opening; the turnover device 38 comprises a rotating sleeve 381, a fixed sleeve 382 and a displacement locking mechanism 383, wherein the two sections of displacement steering wheels 3 are spliced on the inner wall of the rotating sleeve 381 and then are adhered or fixedly connected into a whole through screws, and the rotating sleeve 381 is rotatably connected with the inner wall of the fixed sleeve 382; the fixing sleeve 382 includes a base 3821 and a cover 3822, and the bottom of the base 3821 is fixedly connected to the first steering shaft 2; the outer wall of the rotating sleeve 381 is provided with a limiting boss (not shown) along the radial direction, and the inner wall of the fixed sleeve 382 is provided with a limiting groove (not shown) along the radial direction, so as to limit the tilting of the deflection steering wheel 3 within a fixed angle range.
The shift locking mechanism 383 comprises a shifting block 3831, a return spring 3832, a slide fastener 3833 and a positioning leaf spring 3834; the shifting block 3831 is axially and slidably connected to a sliding groove in the cover plate 3822, one part of the shifting block 3831 is located on the outer side of the cover plate 3822, the other part of the shifting block 3831 is located on the inner side of the cover plate 3822, and the part located on the outer side of the cover plate 3822 is in a curved surface shape; a spring seat (not shown in the figure) is fixedly connected to the inner wall of the cover plate 3822, and a return spring 3832 is placed between one end of the shifting block 3831 and the spring seat; one end of the positioning leaf spring 3834 is welded or fixedly connected to the bottom end of a shifting block 3831 in the cover plate 3822 through a screw, and the other end is fixedly connected with a wedge-shaped sliding buckle 3833; two locking holes 39 are formed in the deflection steering wheel 3, and when the deflection steering wheel 3 is turned over to two limit angles, the sliding buckle 3833 is clamped into the two locking holes 39; the turning angle range of the deflection steering wheel 3 is-10-110 degrees.
The first steering shaft 2 is connected to the second steering shaft 4 via a universal joint 33.
The specific working principle is as follows:
the present invention is a part of a series of applications for a multi-functional electric shopping cart, and therefore the structure and principle of the steering knuckle 16, the driving system 17 and the telescopic frame 1 mentioned in the above description are not specifically explained here.
When the shopping cart needs to turn, taking left turning as an example: the user turns the deflection steering wheel 3 to the left, the front wheel steering shaft 6 rotates to the left through the gear transmission of the central steering mechanism 5, so that the front swing arm 8 pushes the steering rod a27, the steering rod a27 pushes the front wheel A10 to turn to the left, and the steering arm a20 pulls the steering rod B28 to make the front wheel B11 turn to the left synchronously while the front wheel A10 turns to the left; at the same time, the rear wheel steering axle assembly 7 rotates to the right so that the front swing arm 8 pushes the steering rod c29, the steering rod c29 pushes part of the steering knuckle 16 to rotate so that the rear wheel B13 rotates to the right, the rear wheel B13 rotates to the right, and the steering arm d23 pulls the steering rod d30 so that the rear wheel A12 also rotates to the right synchronously, so that the shopping cart rotates to the left.
When the push mode is switched to the driving mode, the length of the telescopic frame 1 needs to be adjusted, the spline sleeve 702 moves back and forth along with the movable part of the telescopic frame 1, and the rear swing arm 9 extends towards the rear end and can normally rotate.
When the deflection steering wheel 3 is adjusted, the shifting block 3831 is shifted rightwards, the return spring 3832 is pressed to enable the sliding buckle 3833 to slide out of a locking hole 39, at the moment, the positioning leaf spring 3834 deforms upwards, the deflection steering wheel 3 and the rotating sleeve 381 are turned upwards to a limit position (about 120 degrees of turning), the limit boss is just limited by the limit groove in the fixed sleeve 382, the shifting block 3831 is loosened, under the tension action of the return spring 3832, the shifting block 3831, the positioning leaf spring 3834 and the sliding buckle 3833 move leftwards together, and when the sliding buckle 3833 falls into the other limit locking hole 39, the positioning leaf spring 3834 presses the sliding buckle 3833 to form driving mode positioning; when the driving mode is switched to the pushing mode, the above operation is repeated, and the shift steering wheel 3 is simply turned in the reverse direction to the limit position.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A steering system for a multi-function electric shopping cart, characterized by: comprises a first steering shaft (2) which is rotationally connected with a telescopic frame (1), the top end of the first steering shaft (2) is connected with a deflection steering wheel (3) through a turning device (38), the first steering shaft (2) is in transmission connection with a second steering shaft (4), the second steering shaft (4) is in vertical transmission connection with a central steering mechanism (5), two ends of the central steering mechanism (5) output a front wheel steering shaft (6) and a rear wheel steering shaft assembly (7), the front wheel steering shaft (6) and the rear wheel steering shaft assembly (7) are rotationally connected with the telescopic frame (1), the end parts of the front wheel steering shaft (6) and the rear wheel steering shaft assembly (7) are respectively provided with a front swing arm (8) and a rear swing arm (9), the front swing arm (8) pushes or pulls a front wheel A (10), the front wheel A (10) pushes or pulls a front wheel B (11), and the rear swing arm (9) pushes or pulls a rear wheel B (13), the rear wheel B (13) pushes or pulls the rear wheel A (12), and the front wheel A (10), the front wheel B (11), the rear wheel A (12) and the rear wheel B (13) are rotationally connected with the telescopic frame (1); the rear swing arm (9) can be extended and retracted back and forth.
2. The steering system for a multi-function electric shopping cart as recited in claim 1, wherein: the telescopic bicycle frame is characterized in that the two sides of the front end of the telescopic bicycle frame (1) and one side of the rear end of the telescopic bicycle frame are fixedly connected with lug plate groups (14), the shaft sleeve is connected to the lug plate groups (14) in a rotating mode through a pivot, a wheel shaft (15) is fixedly connected to the outer wall of the shaft sleeve in a perpendicular mode, a front wheel A (10), a front wheel B (11) and a rear wheel A (12) are fixedly connected to the wheel shaft (15) in a rotating mode, a rear wheel B (13) is connected to the other side of the rear end of the telescopic bicycle frame (1) through a steering knuckle (16) in a rotating.
3. The steering system for a multi-function electric shopping cart as recited in claim 2, wherein: central steering mechanism (5) are including frame (501) and three bevel gear (502), and three bevel gear (502) are the meshing of the letter of falling T and arrange in frame (501), and frame (501) pass through layer board (35) fixed connection on telescopic frame (1), and second steering spindle (4) rotate to be connected in frame (501) and fixed connection in the bevel gear (502) on top, and front wheel steering spindle (6) rotate to be connected in frame (501) and fixed connection in the bevel gear (502) of front end.
4. A steering system for a multi-function electric shopping cart as recited in claim 3, wherein: rear wheel steering shaft subassembly (7) are including sliding connection's integral key shaft (701) and spline housing (702), and integral key shaft (701) rotate to be connected in frame (501) and fixed connection in bevel gear (502) of rear end, and back swing arm (9) fixed connection is on spline housing (702), and the cover is equipped with thrust bearing (18) on the outer wall of spline housing (702), and thrust bearing (18) are through first horizontal pole (19) and the mobilizable one end fixed connection of telescopic frame (1).
5. The steering system for a multi-function electric shopping cart as recited in claim 4, wherein: the steering system further comprises a steering arm a (20), a steering arm b (21), a steering arm c (22), a steering arm d (23), a front threaded rod (24), a rear threaded rod (25), a steering rod a (27), a steering rod b (28), a steering rod c (29) and a steering rod d (30), wherein ball heads (26) are connected to two ends of the steering rod a (27), the steering rod b (28) and the steering rod d (30) in a threaded mode, and a locking nut (31) is arranged at the joint of the ball heads (26) and the steering rod; the steering arm a (20), the steering arm B (21) and the steering arm c (22) are respectively and fixedly connected with the corresponding shaft sleeves of the front wheel A (10), the front wheel B (11) and the rear wheel A (12), and the steering arm d (23) is fixedly connected to the bottom of the steering knuckle (16).
6. The steering system for a multi-function electric shopping cart as recited in claim 5, wherein: the front threaded rod (24) and the rear threaded rod (25) are both provided with two adjusting nuts (32), and the top ends of the front threaded rod (24) and the rear threaded rod (25) are provided with a stop block (37); one ends of the steering arm a (20) and the steering arm d (23) are hinged to the bottoms of the front threaded rod (24) and the rear threaded rod (25); one end of the steering rod a (27) is hinged to the top end of the front swing arm (8), and the other end of the steering rod a is hinged to the top end of the front threaded rod (24); one end of the steering rod b (28) is hinged to the bottom end of the front threaded rod (24), and the other end of the steering rod b is hinged to the steering arm b (21); one end of the steering rod c (29) is hinged to the top end of the rear swing arm (9), and the other end of the steering rod c (29) is hinged to the top end of the rear threaded rod (25); one end of the steering rod d (30) is hinged to the bottom end of the rear threaded rod (25), and the other end of the steering rod d is hinged to the steering arm c (22).
7. The steering system for a multi-function electric shopping cart as recited in claim 1, wherein: the position-changing steering wheel (3) is two symmetrically arranged sections and is integrally in a concave shape with an opening; the turnover device (38) comprises a rotating sleeve (381), a fixed sleeve (382) and a shifting locking mechanism (383), two sections of shifting steering wheels (3) are inserted into the inner wall of the rotating sleeve (381) and then fixedly connected into a whole, and the rotating sleeve (381) is rotatably connected to the inner wall of the fixed sleeve (382); the fixed sleeve (382) comprises a base (3821) and a cover plate (3822), and the bottom of the base (3821) is fixedly connected to the first steering shaft; the outer wall of the rotating sleeve (381) is provided with a limiting boss along the radial direction, and the inner wall of the fixed sleeve (382) is provided with a limiting groove along the radial direction so as to limit the turning of the deflection steering wheel (3) within a fixed angle range.
8. The steering system for a multi-function electric shopping cart as recited in claim 7, wherein: the deflection locking mechanism (383) comprises a shifting block (3831), a return spring (3832), a slide fastener (3833) and a positioning leaf spring (3834); the shifting block (3831) is axially connected to a sliding groove in the cover plate (3822) in a sliding mode, one part of the shifting block (3831) is located on the outer side of the cover plate (3822), the other part of the shifting block is located on the inner side of the cover plate (3822), and the part located on the outer side of the cover plate (3822) is in a curved surface shape; a spring seat is fixedly connected to the inner wall of the cover plate (3822), and a return spring (3832) is placed between one end of the shifting block (3831) and the spring seat; one end of the positioning leaf spring (3834) is fixedly connected to the bottom end of a shifting block (3831) in the cover plate (3822), and the other end of the positioning leaf spring is fixedly connected with a wedge-shaped sliding buckle (3833); two locking holes (39) are formed in the deflection steering wheel (3), and when the deflection steering wheel (3) is turned to two limit angles, the sliding fastener (3833) is clamped into the two locking holes (39).
9. The steering system for a multi-function electric shopping cart as recited in claim 8, wherein: the turning angle range of the deflection steering wheel (3) is-10-110 degrees.
10. A steering system for a multi-function electric shopping cart according to any one of claims 1-9, wherein: the first steering shaft (2) is connected to the second steering shaft (4) via a universal joint (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183243.4U CN211568016U (en) | 2019-12-09 | 2019-12-09 | Steering system for multifunctional electric shopping cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183243.4U CN211568016U (en) | 2019-12-09 | 2019-12-09 | Steering system for multifunctional electric shopping cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211568016U true CN211568016U (en) | 2020-09-25 |
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ID=72534307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922183243.4U Active CN211568016U (en) | 2019-12-09 | 2019-12-09 | Steering system for multifunctional electric shopping cart |
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| Country | Link |
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| CN (1) | CN211568016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016989A (en) * | 2019-12-09 | 2020-04-17 | 淮阴工学院 | Steering system of driving and pushing dual-purpose electric shopping cart |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016989A (en) * | 2019-12-09 | 2020-04-17 | 淮阴工学院 | Steering system of driving and pushing dual-purpose electric shopping cart |
| CN111016989B (en) * | 2019-12-09 | 2024-03-26 | 淮阴工学院 | Steering system of driving and pushing dual-purpose electric shopping cart |
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Effective date of registration: 20240329 Address after: No. 94-1, Group 11, Guangfu Village, Renxian Town, Liangping District, Chongqing 405200 Patentee after: Chen Xiaolin Country or region after: China Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Country or region before: China |