A multifunctional shock-absorbing and balanced transport trolley

Abstract

The invention discloses a multifunctional shock-absorbing and balanced transport trolley, comprising a multifunctional handle, a semicircular toothed cylindrical shaft, a first cargo expansion plate, a second cargo expansion plate, a first cargo platform telescopic rod, a second cargo platform telescopic rod, a vehicle body, an electric hydraulic column, a hydraulic connecting plate, a first universal wheel connecting frame, a second universal wheel connecting frame, a third universal wheel connecting frame, a fourth universal wheel connecting frame, a first wheel, a second wheel, a third wheel, and a fourth wheel. The multifunctional handle is connected to the vehicle body through the semicircular toothed cylindrical shaft; one end of the first cargo expansion plate and the second cargo expansion plate are respectively connected to the first cargo platform telescopic rod and the second cargo platform telescopic rod, and the other end is connected to the vehicle body; the lower end of the vehicle body is connected to the electric hydraulic column; the lower end of the electric hydraulic column is connected to the hydraulic connecting plate; the first universal wheel connecting frame, the second universal wheel connecting frame, the third universal wheel connecting frame, and the fourth universal wheel connecting frame are respectively connected to the first wheel, the second wheel, the third wheel, and the fourth wheel.

Description

Technical Field

[0001] The invention relates to the field of office logistics transportation, and in particular to a multifunctional shock-absorbing and balanced transportation trolley. Background Art

[0002] With the development of modern technology, more and more high-tech precision instruments are produced and applied in various fields. Therefore, the protection of precision instruments during transportation becomes particularly critical. In short-distance transportation, transport trolleys are widely used, and transport trolleys are mainly driven by manpower to achieve transportation.

[0003] Most of the transport trolleys currently available have the advantages of simple operation, low cost, light body, and convenient loading and transporting at any time, so they are widely used in various transportation fields.

[0004] However, with the continuous development of high-precision technology, more and more precision instruments are damaged during transportation. In the existing transport trolleys, there is no circuit control system, and it is mainly driven by manpower, which has a limited scope of application. There is no shock absorption system, and the impact caused by uneven road surface cannot be reduced during transportation, resulting in damage to the instruments when transporting precision instruments. The device is too large. In order to improve transportation efficiency, the carrying capacity of the transport trolley is blindly increased, resulting in an increase in the size of the trolley, which occupies a larger space and causes a lot of trouble in daily life. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a multifunctional shock-absorbing and balanced transport trolley with a foldable handle design to reduce the space occupied, a widened loading platform design to increase the transport volume, and improve the transport efficiency. The spring shock-absorbing hydraulic column and the electric hydraulic column design reduce the vibration of the vehicle body and ensure the stability of the trolley during transportation.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted to solve the technical problem is as follows:

[0007] The present invention discloses a multifunctional shock-absorbing and balanced transport trolley, comprising a multifunctional handle, a semicircular toothed cylindrical shaft, a first loading expansion plate, a second loading expansion plate, a first loading platform telescopic rod, a second loading platform telescopic rod, a vehicle body, an electric hydraulic column, a hydraulic connecting plate, a first universal wheel connecting frame, a second universal wheel connecting frame, a third universal wheel connecting frame, a fourth universal wheel connecting frame, a first wheel, a second wheel, a third wheel and a fourth wheel, wherein:

[0008] The multi-function handle is connected to the vehicle body through the semicircular toothed cylindrical shaft; one end of the first cargo expansion plate and the second cargo expansion plate are respectively connected to the first cargo platform telescopic rod and the second cargo platform telescopic rod, and the other end is connected to the vehicle body; the lower end of the vehicle body is connected to the electric hydraulic column; the lower end of the electric hydraulic column is connected to the hydraulic connecting plate; the first universal wheel connecting frame, the second universal wheel connecting frame, the third universal wheel connecting frame and the fourth universal wheel connecting frame are respectively connected to the first wheel, the second wheel, the third wheel and the fourth wheel.

[0009] Furthermore, it also includes a semicircular toothed cylindrical shaft buckle, the semicircular toothed cylindrical shaft is fixed by the semicircular toothed cylindrical shaft buckle, and the vehicle body is connected to the semicircular toothed cylindrical shaft buckle to achieve the folding and fixation of the multifunctional handle, thereby reducing the occupied space.

[0010] Furthermore, it also includes a first direction control key, a second direction control key, a speed control key, a first motor and a second motor, wherein:

[0011] The vertical bars on both sides of the multifunctional handle are provided with the first direction control key and the second direction control key for controlling the forward direction of the trolley;

[0012] The speed control key is disposed on the upper cross bar of the multifunctional handle, and is used to start the first motor and the second motor and control the forward speed of the trolley.

[0013] Furthermore, it also includes a loading platform, a shock-absorbing hydraulic column and a shock-absorbing spring, wherein:

[0014] The upper part of the loading platform is used for placing transported objects, and the lower part is connected with the shock-absorbing hydraulic column and the shock-absorbing spring, which are used to reduce the vibration of the loading platform and thus alleviate the impact of the loading platform.

[0015] Furthermore, it also includes an auxiliary loading block, the lower ends of the shock-absorbing hydraulic column and the shock-absorbing spring are respectively connected to the vehicle body, one side of the vehicle body is connected to the first loading expansion plate, and the other side is connected to the second loading expansion plate. The loading area can be freely adjusted by retracting the first loading expansion plate and the second loading expansion plate. When the first loading expansion plate and the second loading expansion plate are extended, the auxiliary loading block needs to be pulled out of the vehicle body and placed on the first loading expansion plate and the second loading expansion plate to maintain alignment with the loading plane of the loading platform and thereby increase the loading area to improve transportation efficiency.

[0016] Furthermore, the lower end of the first cargo expansion plate is connected to the first cargo platform telescopic rod, the lower end of the first cargo platform telescopic rod is connected to the vehicle body, the lower end of the second cargo expansion plate is connected to the second cargo platform telescopic rod, and the lower end of the second cargo platform telescopic rod is connected to the vehicle body, so as to realize the stretching and support of the first cargo expansion plate and the second cargo expansion plate.

[0017] Furthermore, it also includes a first connecting hinge support, a first damping hinge support, a connecting bolt, a connecting pin and a second connecting hinge support, wherein:

[0018] The lower end of the vehicle body is connected to the upper ends of four electric hydraulic columns of the same specifications, the lower ends of the four electric hydraulic columns of the same specifications are connected to four hydraulic connecting plates of the same specifications, the lower end of each hydraulic connecting plate is respectively connected to two of the first connecting hinge supports of the same specifications and one of the first shock-absorbing hinge supports through the connecting bolts, and each of the first connecting hinge supports is respectively connected to the corresponding second connecting hinge supports through the connecting pins.

[0019] Further, it also includes a second shock-absorbing hinge support, a hydraulic shock-absorbing spring buckle, a first hydraulic shock-absorbing spring, a second hydraulic shock-absorbing spring, a third hydraulic shock-absorbing spring, a fourth hydraulic shock-absorbing spring, a first spring hydraulic shock absorber, a second spring hydraulic shock absorber, a third spring hydraulic shock absorber and a fourth spring hydraulic shock absorber, wherein:

[0020] The four first shock-absorbing hinge supports of the same specifications are respectively fixed to the four first hydraulic shock-absorbing springs, the second hydraulic shock-absorbing springs, the third hydraulic shock-absorbing springs and the fourth hydraulic shock-absorbing springs of the same specifications through the four hydraulic shock-absorbing spring buckles of the same specifications, and are respectively connected to the upper ends of the four first spring hydraulic shock absorbers, the second spring hydraulic shock absorbers, the third spring hydraulic shock absorbers and the fourth spring hydraulic shock absorbers of the same specifications, and the lower end of each of the first spring hydraulic shock absorbers, the second spring hydraulic shock absorbers, the third spring hydraulic shock absorbers and the fourth spring hydraulic shock absorbers is connected to two second shock-absorbing hinge supports of the same specifications, and each of the second shock-absorbing hinge supports is respectively connected to the first universal wheel connecting frame, the second universal wheel connecting frame, the third universal wheel connecting frame and the fourth universal wheel connecting frame through the connecting bolts, so as to reduce the impact caused by wheel vibration due to uneven roads.

[0021] Furthermore, the upper ends of the first universal wheel connecting frame and the second universal wheel connecting frame are connected to the two second shock-absorbing hinge supports of the same specification through the two connecting bolts of the same specification and the two second connecting hinge supports of the same specification, and the lower ends are respectively connected to the first wheel and the second wheel.

[0022] Furthermore, it also includes a first power gear train and a second power gear train, wherein:

[0023] The upper ends of the third universal wheel connecting frame and the fourth universal wheel connecting frame are connected to the two second shock-absorbing hinge supports of the same specification through the two connecting bolts of the same specification and the two second connecting hinge supports of the same specification, and the lower ends are respectively provided with the first motor and the second motor, which are respectively connected to the third wheel and the fourth wheel through the first power gear train and the second power gear train, so as to provide forward power for the entire device.

[0024] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0025] 1. The multifunctional shock-absorbing and balanced transport trolley of the present invention adopts a foldable handle design, which greatly reduces the occupied space. In addition, the widened loading platform design effectively increases the transport volume. Overall, the vehicle body can achieve maximum transport efficiency within a limited occupied space;

[0026] 2. The multifunctional shock-absorbing and balanced transport trolley of the present invention adopts a spring shock-absorbing hydraulic column and an electric hydraulic column combined with a universal wheel design, which effectively reduces the vibration of the wheel. The spring shock-absorbing hydraulic column and the loading platform are combined to effectively reduce the vibration of the loading platform. The integrated design of the two ensures the stability of the trolley during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 It is a structural schematic diagram of a multifunctional shock-absorbing and balanced transport trolley of the present invention;

[0029] Figure 2 It is a schematic diagram of the explosion structure of a multifunctional shock-absorbing and balanced transport trolley of the present invention;

[0030] Figure 3 It is a schematic diagram of the top plan structure of the multifunctional handle and vehicle body connection device of the present invention;

[0031] Figure 4 It is a schematic diagram of the left-side planar structure of the multifunctional handle of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the connection device between the loading platform, the shock absorbing hydraulic column and the shock absorbing spring of the present invention;

[0033] Figure 6 It is a schematic diagram of the top plan structure of the first cargo expansion board, the second cargo expansion board and the vehicle body connection device of the present invention;

[0034] Figure 7 It is a schematic diagram of the connection structure between the auxiliary loading block and the vehicle body of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the first loading platform telescopic rod connected to the vehicle body and the second loading platform telescopic rod connected to the vehicle body of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of a connection device of an electric hydraulic column, a hydraulic connection plate, a first connection hinge support, and a first damping hinge support of the present invention;

[0037] Fig.10 It is a schematic diagram of the connection structure of the first spring hydraulic shock absorber, the second spring hydraulic shock absorber, the third spring hydraulic shock absorber, the fourth spring hydraulic shock absorber and the second shock-absorbing hinged support of the present invention;

[0038] Fig.11 It is a schematic diagram of the connection structure of the first universal wheel connecting frame, the second universal wheel connecting frame and the first spring hydraulic shock absorber and the second spring hydraulic shock absorber of the present invention;

[0039] Fig.12 It is a schematic diagram of the connection structure of the third universal wheel connecting frame, the fourth universal wheel connecting frame and the third spring hydraulic shock absorber and the fourth spring hydraulic shock absorber of the present invention.

[0040]

Explanation of main symbols

[0041] 1. Multi-function handle; 2. Semicircular toothed cylindrical shaft; 3. First cargo expansion board; 4. Second cargo expansion board; 5. First cargo platform telescopic rod; 6. Second cargo platform telescopic rod; 7. Vehicle body; 8. Electric hydraulic column; 9. Hydraulic connecting plate; 10. First universal wheel connecting frame; 11. Second universal wheel connecting frame; 12. Third universal wheel connecting frame; 13. Fourth universal wheel connecting frame; 14. First wheel; 15. Second wheel; 16. Third wheel; 17. Fourth wheel; 18. Semicircular toothed cylindrical shaft buckle; 19. First direction control key; 20. Second direction control key; 21. Speed ​​control key; 22. First motor; 23. Second motor; 24. Platform; 25, shock-absorbing hydraulic column; 26, shock-absorbing spring; 27, auxiliary load block; 28, first connecting hinge support; 29, first shock-absorbing hinge support; 30, connecting bolt; 31, connecting pin; 32, second connecting hinge support; 33, second shock-absorbing hinge support; 34, hydraulic shock-absorbing spring buckle; 35, first hydraulic shock-absorbing spring; 36, second hydraulic shock-absorbing spring; 37, third hydraulic shock-absorbing spring; 38, fourth hydraulic shock-absorbing spring; 39, first spring hydraulic shock absorber; 40, second spring hydraulic shock absorber; 41, third spring hydraulic shock absorber; 42, fourth spring hydraulic shock absorber; 43, first power gear train; 44, second power gear train. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Please refer to Figures 1 to 12 The present embodiment discloses a multifunctional shock-absorbing and balanced transport trolley, comprising a multifunctional handle 1, a semicircular toothed cylindrical shaft 2, a first loading expansion plate 3, a second loading expansion plate 4, a first loading platform telescopic rod 5, a second loading platform telescopic rod 6, a vehicle body 7, an electric hydraulic column 8, a hydraulic connecting plate 9, a first universal wheel connecting frame 10, a second universal wheel connecting frame 11, a third universal wheel connecting frame 12, a fourth universal wheel connecting frame 13, a first wheel 14, a second wheel 15, a third wheel 16 and a fourth wheel 17, wherein:

[0046] The multifunctional handle 1 is connected to the vehicle body 7 through the semicircular toothed cylindrical shaft 2; one end of the first cargo expansion plate 3 and the second cargo expansion plate 4 are respectively connected to the first cargo platform telescopic rod 5 and the second cargo platform telescopic rod 6, and the other end is connected to the vehicle body 7; the lower end of the vehicle body 7 is connected to the electric hydraulic column 8; the lower end of the electric hydraulic column 8 is connected to the hydraulic connecting plate 9; the first universal wheel connecting frame 10, the second universal wheel connecting frame 11, the third universal wheel connecting frame 12 and the fourth universal wheel connecting frame 13 are respectively connected to the first wheel 14, the second wheel 15, the third wheel 16 and the fourth wheel 17.

[0047] Combination Figure 2 and Figure 3 As shown, the transport trolley also includes a semicircular toothed cylindrical shaft buckle 18, the semicircular toothed cylindrical shaft 2 is fixed by the semicircular toothed cylindrical shaft buckle 18, and the vehicle body 7 is connected to the semicircular toothed cylindrical shaft buckle 18, so as to realize the folding and fixation of the multifunctional handle 1 and thereby reduce the occupied space.

[0048] Combination Figure 2 and Figure 4 As shown, the transport trolley also includes a first direction control key 19, a second direction control key 20, a speed control key 21, a first motor 22 and a second motor 23. The vertical bars on both sides of the multifunctional handle 1 are provided with the first direction control key 19 and the second direction control key 20 for controlling the forward direction of the trolley; the upper end horizontal bar of the multifunctional handle 1 is provided with the speed control key 21 for starting the first motor 22 and the second motor 23 and controlling the forward speed of the trolley.

[0049] like Figure 5 As shown, the transport trolley also includes a loading platform 24, a shock-absorbing hydraulic column 25 and a shock-absorbing spring 26. The top of the loading platform 24 is used to place the transported objects, and the shock-absorbing hydraulic column 25 and the shock-absorbing spring 26 are connected to the bottom to reduce the vibration of the loading platform 24 and thus mitigate the impact on the loading platform 24.

[0050] Combination Figure 6 and Figure 7 As shown, the transport trolley also includes an auxiliary loading block 27, the lower ends of the shock-absorbing hydraulic column 25 and the shock-absorbing spring 26 are respectively connected to the vehicle body 7, one side of the vehicle body 7 is connected to the first loading expansion plate 3, and the other side is connected to the second loading expansion plate 4, and the loading area can be freely adjusted by retracting the first loading expansion plate 3 and the second loading expansion plate 4; when the first loading expansion plate 3 and the second loading expansion plate 4 are extended, the auxiliary loading block 27 needs to be pulled out of the vehicle body 7 and placed on the first loading expansion plate 3 and the second loading expansion plate 4, keeping it aligned with the loading plane of the loading platform 24, thereby increasing the loading area and improving the transportation efficiency.

[0051] like Figure 8 As shown, the lower end of the first cargo expansion plate 3 is connected to the first cargo platform telescopic rod 5, the lower end of the first cargo platform telescopic rod 5 is connected to the vehicle body 7, the lower end of the second cargo platform telescopic rod 6 is connected to the vehicle body 7, for realizing the stretching and support of the first cargo expansion plate 3 and the second cargo platform telescopic rod 6.

[0052] Combination Figure 2 , Fig. 9 As shown, the transport trolley also includes a first connecting hinge support 28, a first shock-absorbing hinge support 29, a connecting bolt 30, a connecting pin 31 and a second connecting hinge support 32. The lower end of the vehicle body 7 is connected to the upper ends of four electric hydraulic columns 8 of the same specifications, and the lower ends of the four electric hydraulic columns 8 of the same specifications are connected to four hydraulic connecting plates 9 of the same specifications. The lower end of each hydraulic connecting plate 9 is respectively connected to two of the first connecting hinge supports 28 of the same specifications and one of the first shock-absorbing hinge supports 29 through the connecting bolts 30, and each of the first connecting hinge supports 28 is respectively connected to the corresponding second connecting hinge supports 32 through the connecting pins 31.

[0053] Combination Figure 2 , Fig.10 and Fig.11As shown, the transport trolley further includes a second shock-absorbing hinge support 33, a hydraulic shock-absorbing spring buckle 34, a first hydraulic shock-absorbing spring 35, a second hydraulic shock-absorbing spring 36, a third hydraulic shock-absorbing spring 37, a fourth hydraulic shock-absorbing spring 38, a first spring hydraulic shock absorber 39, a second spring hydraulic shock absorber 40, a third spring hydraulic shock absorber 41 and a fourth spring hydraulic shock absorber 42, wherein:

[0054] The four first shock-absorbing hinge supports 29 of the same specifications are respectively fixed to the four first hydraulic shock-absorbing springs 35, the second hydraulic shock-absorbing springs 36, the third hydraulic shock-absorbing springs 37 and the fourth hydraulic shock-absorbing springs 38 of the same specifications through the four hydraulic shock-absorbing spring buckles 34 of the same specifications, and are respectively connected to the upper ends of the four first spring hydraulic shock absorbers 39, the second spring hydraulic shock absorbers 40, the third spring hydraulic shock absorbers 41 and the fourth spring hydraulic shock absorbers 42 of the same specifications. The lower end of each of the first spring hydraulic shock absorbers 39, the second spring hydraulic shock absorbers 40, the third spring hydraulic shock absorbers 41 and the fourth spring hydraulic shock absorbers 42 is connected to two second shock-absorbing hinge supports 33 of the same specifications. Each of the second shock-absorbing hinge supports 33 is respectively connected to the first universal wheel connecting frame 10, the second universal wheel connecting frame 11, the third universal wheel connecting frame 12 and the fourth universal wheel connecting frame 13 through the connecting bolts 30, so as to reduce the impact caused by the vibration of the wheels due to uneven roads.

[0055] Combination Fig.10 and Fig.11 As shown, the upper ends of the first universal wheel connecting frame 10 and the second universal wheel connecting frame 11 are connected to the two second shock-absorbing hinge supports 33 of the same specification through the two connecting bolts 30 of the same specification and the two second connecting hinge supports 32 of the same specification, and the lower ends are connected to the first wheel 14 and the second wheel 15 respectively.

[0056] Combination Fig.10 and Fig.12 As shown, it also includes a first power gear train 43 and a second power gear train 44, wherein:

[0057] The upper ends of the third universal wheel connecting frame 12 and the fourth universal wheel connecting frame 13 are connected to the two second shock-absorbing hinge supports 33 of the same specification through the two connecting bolts 30 of the same specification and the two second connecting hinge supports 32 of the same specification, and the lower ends are respectively provided with the first motor 22 and the second motor 23. The first motor 22 and the second motor 23 are respectively connected to the third wheel 16 and the fourth wheel 17 through the first power gear train 43 and the second power gear train 44, so as to provide forward power for the entire device.

[0058] Embodiment 1

[0059] The multifunctional shock-absorbing and balancing transport trolley of the present invention has the following working principle according to the uneven road surface encountered by the trolley during driving:

[0060] When the trolley is not in motion, the foldable multifunctional handle 1 should be unfolded first, and a suitable unfolding angle can be adjusted through the semicircular toothed cylindrical shaft 2 and the semicircular toothed cylindrical shaft buckle 18, so that the user can manually control the driving state of the trolley.

[0061] According to the carrying capacity of the trolley loading platform 24 and the specific circumstances of the actual objects to be transported, if the carrying capacity of the loading platform 24 is exceeded, the first loading expansion plate 3 and the second loading expansion plate 4 on both sides of the vehicle body 7 need to be stretched, and the loading auxiliary block 27 is installed above the first loading expansion plate 3 and the second loading expansion plate 4 at the same time, so as to increase the loading area, increase the carrying capacity of the trolley, and improve the transportation efficiency of the trolley; at the same time, if small parts need to be shipped, there is no need to take out the loading auxiliary block 27 from the vehicle body 7, and the small objects can be placed on the first loading expansion plate 3 and the second loading expansion plate 4 on both sides of the vehicle body 7; if the carrying capacity of the loading platform 24 is not exceeded, there is no need to stretch the first loading expansion plate 3 and the second loading expansion plate 4.

[0062] The first motor 22 and the second motor 23 are started by the speed control key 21 on the multi-function handle 1, and the third wheel 16 and the fourth wheel 17 are driven to rotate by the first power gear train 43 and the second power gear train 44 to provide forward power for the vehicle. The forward speed can be changed by the speed control key 21 to cope with various complex road conditions. When encountering a bend, the forward direction of the vehicle can be controlled by the first direction control key 19 and the second direction control key 20 on the multi-function handle 1.

[0063] When the car encounters an uneven road surface, vibrations will occur at the wheels. When longitudinal vibrations occur, the wheels will reduce part of the impact force generated by the vibrations through the lifting and lowering of the electric hydraulic column 8. When lateral vibrations occur, the wheels can reduce part of the impact force through the spring hydraulic shock absorbers to ensure smooth driving of the wheels and reduce vehicle body vibrations.

[0064] When excessive vibration occurs and the wheels are unable to offset the impact force, in order to minimize the damage caused by the vibration to the transported objects, the shock-absorbing hydraulic column 25 and shock-absorbing spring 26 arranged under the loading platform 24 will block the impact force transmitted from the wheels, thereby reducing the vibration of the loading platform 24 and ensuring the stable transportation of the transported objects.

[0065] After the transportation is completed, the first cargo expansion plate 3 and the second cargo expansion plate 4 need to be retracted, the semicircular tooth cylindrical shaft buckle 18 needs to be opened, and the multifunctional handle 1 needs to be folded back to the original position to complete the transportation work.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A multifunctional shock-absorbing and balanced transport trolley, characterized in that: The invention comprises a multifunctional handle (1), a semicircular toothed cylindrical shaft (2), a first loading expansion plate (3), a second loading expansion plate (4), a first loading platform telescopic rod (5), a second loading platform telescopic rod (6), a vehicle body (7), an electric hydraulic column (8), a hydraulic connection plate (9), a first universal wheel connecting frame (10), a second universal wheel connecting frame (11), a third universal wheel connecting frame (12), a fourth universal wheel connecting frame (13), a first wheel (14), a second wheel (15), a third wheel (16), a fourth wheel (17), a semicircular toothed cylindrical shaft buckle (18), a first direction control key (19), a second direction control key (20), a speed A control key (21), a first motor (22), a second motor (23), a first connecting hinge support (28), a first shock absorbing hinge support (29), a connecting bolt (30), a connecting pin (31), a second connecting hinge support (32), a second shock absorbing hinge support (33), a hydraulic shock absorbing spring buckle (34), a first hydraulic shock absorbing spring (35), a second hydraulic shock absorbing spring (36), a third hydraulic shock absorbing spring (37), a fourth hydraulic shock absorbing spring (38), a first spring hydraulic shock absorber (39), a second spring hydraulic shock absorber (40), a third spring hydraulic shock absorber (41) and a fourth spring hydraulic shock absorber (42), wherein: The multifunctional handle (1) is connected to the vehicle body (7) via the semicircular toothed cylindrical shaft (2); one end of the first cargo expansion plate (3) and the second cargo expansion plate (4) are respectively connected to the first cargo platform telescopic rod (5) and the second cargo platform telescopic rod (6), and the other end is connected to the vehicle body (7); the lower end of the vehicle body (7) is connected to the electric hydraulic column (8); the lower end of the electric hydraulic column (8) is connected to the hydraulic connecting plate (9); the first universal wheel connecting frame (10), the second universal wheel connecting frame (11), the third universal wheel connecting frame (12) and the fourth universal wheel connecting frame (13) are respectively connected to the first wheel (14), the second wheel (15), the third wheel (16) and the fourth wheel (17); The semicircular toothed cylindrical shaft (2) is fixed by means of the semicircular toothed cylindrical shaft buckle (18), and the vehicle body (7) is connected to the semicircular toothed cylindrical shaft buckle (18), so as to realize the folding and fixing of the multifunctional handle (1) and thereby reduce the occupied space; The vertical bars on both sides of the multifunctional handle (1) are provided with the first direction control key (19) and the second direction control key (20) for controlling the forward direction of the trolley; The upper crossbar of the multifunctional handle (1) is provided with the speed control key (21) for starting the first motor (22) and the second motor (23) and controlling the forward speed of the trolley; The lower end of the vehicle body (7) is connected to the upper ends of four electric hydraulic columns (8) of the same specification, the lower ends of the four electric hydraulic columns (8) of the same specification are connected to four hydraulic connecting plates (9) of the same specification, the lower end of each hydraulic connecting plate (9) is respectively connected to two first connecting hinge supports (28) of the same specification and one first shock-absorbing hinge support (29) via the connecting bolts (30), and each first connecting hinge support (28) is respectively connected to the corresponding second connecting hinge support (32) via the connecting pin (31); The four first shock-absorbing hinge supports (29) of the same specification respectively fix the four first hydraulic shock-absorbing springs (35), the second hydraulic shock-absorbing springs (36), the third hydraulic shock-absorbing springs (37) and the fourth hydraulic shock-absorbing springs (38) of the same specification through the four hydraulic shock-absorbing spring buckles (34) of the same specification, and are respectively connected to the upper ends of the four first spring hydraulic shock absorbers (39), the second spring hydraulic shock absorbers (40), the third spring hydraulic shock absorbers (41) and the fourth spring hydraulic shock absorbers (42) of the same specification. Each of the first The lower ends of a first spring hydraulic shock absorber (39), a second spring hydraulic shock absorber (40), a third spring hydraulic shock absorber (41) and a fourth spring hydraulic shock absorber (42) are all connected to two second shock absorbing hinge supports (33) of the same specification, and each of the second shock absorbing hinge supports (33) is respectively connected to the first universal wheel connecting frame (10), the second universal wheel connecting frame (11), the third universal wheel connecting frame (12) and the fourth universal wheel connecting frame (13) via the connecting bolts (30) to reduce the impact caused by wheel vibration due to uneven road surface.

2. A multifunctional shock-absorbing and balanced transport trolley according to claim 1, characterized in that: It also includes a loading platform (24), a shock-absorbing hydraulic column (25) and a shock-absorbing spring (26), wherein: The upper portion of the loading platform (24) is used for placing transported objects, and the lower portion is connected to the shock-absorbing hydraulic column (25) and the shock-absorbing spring (26) for reducing the vibration experienced by the loading platform (24) and thereby alleviating the impact experienced by the loading platform (24).

3. The multifunctional shock-absorbing and balanced transport trolley according to claim 2, characterized in that: The vehicle also includes an auxiliary loading block (27), wherein the lower ends of the shock absorbing hydraulic column (25) and the shock absorbing spring (26) are respectively connected to the vehicle body (7), one side of the vehicle body (7) is connected to the first loading expansion plate (3), and the other side is connected to the second loading expansion plate (4), and the loading area can be freely adjusted by extending and retracting the first loading expansion plate (3) and the second loading expansion plate (4); when the first loading expansion plate (3) and the second loading expansion plate (4) are extended, the auxiliary loading block (27) needs to be drawn out of the vehicle body (7) and placed on the first loading expansion plate (3) and the second loading expansion plate (4) to keep it aligned with the loading plane of the loading platform (24) so ​​as to increase the loading area and improve the transportation efficiency.

4. The multifunctional shock-absorbing and balanced transport trolley according to claim 1, characterized in that: The lower end of the first cargo expansion plate (3) is connected to the first cargo platform telescopic rod (5), and the lower end of the first cargo platform telescopic rod (5) is connected to the vehicle body (7). The lower end of the second cargo expansion plate (4) is connected to the second cargo platform telescopic rod (6), and the lower end of the second cargo platform telescopic rod (6) is connected to the vehicle body (7), so as to realize the stretching and support of the first cargo expansion plate (3) and the second cargo expansion plate (4).

5. The multifunctional shock-absorbing and balanced transport trolley according to claim 1, characterized in that: The upper ends of the first universal wheel connecting frame (10) and the second universal wheel connecting frame (11) are connected to two second shock-absorbing hinge supports (33) of the same specification via two connecting bolts (30) of the same specification and two second connecting hinge supports (32) of the same specification, and the lower ends are respectively connected to the first wheel (14) and the second wheel (15).

6. The multifunctional shock-absorbing and balanced transport trolley according to claim 1, characterized in that: It also includes a first power gear train (43) and a second power gear train (44), wherein: The upper ends of the third universal wheel connecting frame (12) and the fourth universal wheel connecting frame (13) are connected to the two second shock-absorbing hinge supports (33) of the same specification via two connecting bolts (30) of the same specification and two second connecting hinge supports (32) of the same specification, and the lower ends are provided with the first motor (22) and the second motor (23), respectively. The first motor (22) and the second motor (23) are connected to the third wheel (16) and the fourth wheel (17) via the first power gear train (43) and the second power gear train (44), respectively, so as to provide power for the entire device to move forward.

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