CN113525474A

CN113525474A - Wearable wheel type load assisting device

Info

Publication number: CN113525474A
Application number: CN202011492276.8A
Authority: CN
Inventors: 付成龙; 冷雨泉; 融亦鸣; 陈诺; 李凯林; 闫丹琪; 林诚育
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology; Southern University of Science and Technology
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-22

Abstract

The application provides a wearable wheel type load assisting device which comprises a wearing mechanism, a universal joint component, a buffer bracket, a hinge component and an assisting trolley, wherein the wearing mechanism is arranged on the universal joint component; the wearing mechanism is used for wearing on a human body; the front end of the buffer bracket is connected with the wearing mechanism through the universal joint component, and the rear end of the buffer bracket is connected with the power-assisted trolley through the hinge component; the power assisting trolley comprises a bearing base, wherein the bearing base is used for bearing goods, wheels are arranged at the bottom of the bearing base, and hub motors are arranged in the wheels to realize auxiliary power assisting. The application provides a wheeled helping hand device that bears a burden of wearing formula can be used to the supplementary helping hand device of individual soldier's operation, can reduce the energy loss that the soldier produced because of bearing a burden effectively.

Description

Wearable wheel type load assisting device

Technical Field

The application relates to the technical field of mechanical auxiliary equipment, in particular to a wearable wheeled load assisting device.

Background

The soldier can cause a large amount of physical losses because of the heavy burden of knapsack when the environment such as plateau, mountain region is combated, thereby reduce the efficiency of fighting. The common products for assisting individual load at present are mechanical exoskeleton robots or backpacks with ducted propellers. For example, the patent with the Chinese patent application number of 201520069846.0 discloses a backpack with an additional ducted propeller, the ducted propeller originally used for an aircraft is additionally arranged outside the backpack, and the weight of soldiers is reduced by providing lift force through the ducted propeller. The backpack needs larger volume and larger battery capacity, is not beneficial to the continuous operation of individual soldiers, and has complicated mechanical structure, higher cost and easy damage. Chinese patent application No. 201210092998.3 discloses a mechanical load-bearing device for a hip exoskeleton of a human body, which can transfer the load of the human body to a leg-bearing device, and has a certain cushioning function. The device has a simple structure, but can interfere the movement of the soldier, cannot ensure the flexibility of the soldier at a higher speed per hour, and cannot meet various combat requirements of the soldier.

Therefore, the auxiliary power assisting device which is simple in structure, convenient to use and efficient and can be used for individual combat is a technical problem which needs to be solved urgently.

Disclosure of Invention

The application provides a wheeled booster unit that bears a burden of wearing formula can be used to the supplementary booster unit of individual soldier's operation, can reduce the energy loss that the soldier produced because of bearing a burden effectively.

In a first aspect, a wearable wheel type load-bearing power assisting device is provided, and comprises a wearing mechanism, a universal joint component, a buffer bracket, a hinge component and a power assisting trolley; the wearing mechanism is used for wearing on a human body; the front end of the buffer bracket is connected with the wearing mechanism through the universal joint component, and the rear end of the buffer bracket is connected with the power-assisted trolley through the hinge component; the power assisting trolley comprises a bearing base, wherein the bearing base is used for bearing goods, wheels are arranged at the bottom of the bearing base, and hub motors are arranged in the wheels to realize auxiliary power assisting.

According to the wearing wheeled helping hand device that bears a burden that this application embodiment provided, the helping hand dolly can assist the helping hand including wheel hub motor, can reduce the soldier effectively and because of bearing a burden the energy loss that produces, and then can improve the ability of individual soldier's operation. This application backplate and buffer support carry out swivelling joint through the universal joint subassembly, when actual combat, can make things convenient for the soldier to jump, crawl etc. and move, reduce the interference that booster unit removed the soldier.

This application wearing mechanism is connected with the helping hand dolly through buffering support, and the buffering support can cushion the interact power (relative displacement) between wearing mechanism and the helping hand dolly, and then can provide soldier's use comfort to can reduce the interference that booster unit removed the soldier.

The buffering support and the power-assisted trolley are hinged with each other through the hinge assembly, a certain buffering effect can be achieved, and the interference of the power-assisted device on the movement of soldiers can be reduced. In addition, can also improve the flexibility ratio of using, when finishing using, can fold the device to reduce storage space, and conveniently carry.

The wearing type wheel type load assisting device provided by the embodiment of the application has the advantages of simple structure, low cost, simplicity and convenience in operation, high flexibility and the like.

In one possible design, the hinge assembly comprises a hinge shaft, a shaft sleeve and a positioning assembly, wherein the hinge shaft and the shaft sleeve are hinged with each other; the hinged shaft is fixed on one of the buffer bracket and the power-assisted trolley; the shaft sleeve is fixed on the other one of the buffer bracket and the power-assisted trolley; the positioning assembly is used for rotatably positioning the hinge shaft and the shaft sleeve so as to position the buffer bracket at a working position or a folding position.

In one possible design, the positioning assembly includes: the positioning insertion hole is formed in the shaft sleeve; the fixed baffle is fixed on the shaft sleeve, a through hole is formed in the fixed baffle, and the through hole is arranged corresponding to the positioning insertion hole; the positioning bolt is movably arranged in the positioning jack and comprises a head part and a rod part which are connected with each other, the diameter of the head part is larger than that of the rod part, and the tail end of the rod part passes through the through hole to penetrate out of the jack so as to be pulled out by a user; the positioning spring is sleeved on the rod part, one end of the positioning spring is abutted against the head part, the other end of the positioning spring is abutted against the inner wall surface of the fixed baffle, and the positioning spring is used for abutting the head part in a first positioning groove or a second positioning groove formed in the articulated shaft; when the head is abutted to the first positioning groove, the buffer bracket is positioned at a working position; when the head is abutted against the second positioning groove, the buffer bracket is positioned at a folding position.

In one possible design, the shaft sleeve is detachably connected with the buffer bracket through a shaft sleeve connecting block.

In one possible design, the wearing mechanism includes a back plate and a waist belt, the back plate is fixed on the waist belt, and the buffer bracket is connected with the back plate through the universal joint component.

In a possible design, the power-assisted trolley further comprises a bearing plate and a folding plate, wherein the front end of the bearing plate is connected with the buffer support, the rear end of the bearing plate is connected with the front end of the bearing base, and the folding plate is hinged to the rear end of the bearing base.

In a possible design, a damping base is arranged at the bottom of the bearing base, the wheel is rotatably arranged on the damping base, and a damping component is arranged between the bearing base and the damping base.

In a possible design, the buffering support includes preceding fixed plate, after-fixing board and is two elastic connection pole of "eight" font design, elastic connection pole is including the preceding connecting rod, damping spring and the after-connecting pole that connect gradually, two the connecting rod with preceding fixed plate is connected, two the after-connecting pole with the after-fixing board is connected.

In one possible design, the universal joint assembly includes a connecting ball and socket member that cooperate with each other; the connecting ball is fixedly connected to one of the back plate and the buffer bracket, and the ball socket member is connected to the other of the back plate and the buffer bracket.

In one possible design, the shaft sleeve connecting blocks of the two sets of power assisting devices and the buffer support are disassembled and separated from each other, the two shaft sleeve connecting blocks are fixedly connected, and then the two power assisting trolleys are assembled into the 4-wheel power assisting device.

Drawings

Fig. 1 is a schematic structural diagram of a wearable wheeled load assisting device provided in an embodiment of the present application.

Fig. 2 is a schematic structural view of the wearable wheeled load-assisting device provided in the embodiment of the present application after being folded.

Fig. 3 is an exploded schematic view of a wearable wheeled load-assisting device provided in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a wearing mechanism provided in an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a buffer bracket provided in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a power-assisted trolley provided in an embodiment of the present application.

Fig. 7 is an enlarged view of the back view of region a in fig. 1.

Fig. 8 is an exploded view of a hinge assembly provided by an embodiment of the present application.

Fig. 9 is a schematic structural view of a hinge shaft provided in an embodiment of the present application.

Fig. 10 is a schematic structural diagram of two power-assisted trolleys after modular splicing.

Reference numerals: 10. a wearing mechanism; 11. a back plate; 12. a waistband; 13. a first connecting column;

20. a gimbal assembly; 21. a connecting ball; 22. a ball and socket member;

30. a buffer bracket; 31. an elastic connecting rod; 311. a damping spring; 312. a front connecting rod; 313. a rear connecting rod; 32. a front fixing plate; 33. a rear fixing plate; 34. a second connecting column; 35. a shaft sleeve connecting block; 36. a first mounting screw hole;

40. a hinge assembly; 41. hinging a shaft; 42. a shaft sleeve; 43. fixing a baffle plate; 44. a positioning member; 45. a positioning spring; 46. positioning the jack; 47. a first positioning groove; 48. a second positioning groove;

50. a power-assisted trolley; 51. a carrier plate; 52. a load bearing base; 53. a wheel; 54. a damping mount; 55. folding the board; 56. a shock absorbing assembly; 57. a connecting plate; 58. a hinge shaft mounting seat; 59. and a second mounting screw hole.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "side", "front", "rear", and the like indicate orientations or positional relationships based on installation, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.

The embodiment of the application provides a wearing formula wheeled helping hand device that bears a burden, can be used to the supplementary helping hand device that individual soldier fights, can reduce the soldier effectively and produce because of bearing a burden energy loss. Fig. 1 is a schematic structural diagram of a wearable wheeled load assisting device provided in an embodiment of the present application. Fig. 2 is a schematic structural view of the wearable wheeled load-assisting device provided in the embodiment of the present application after being folded. Fig. 3 is an exploded schematic view of a wearable wheeled load-assisting device provided in an embodiment of the present application.

As shown in fig. 1 to 3, the wearable wheeled load-assisting device provided by the embodiment of the present application includes a wearing mechanism 10, a universal joint assembly 20, a buffer bracket 30, an articulation assembly 40, and a power-assisting trolley 50.

Wherein, wearing mechanism 10 is used for wearing on the human body, and wearing mechanism 10 includes backplate 11. The front end of the buffer bracket 30 is connected with the back plate 11 through the universal joint component 20, and the rear end is connected with the power-assisted trolley 50 through the hinge component 40. The power-assisted trolley 50 comprises a bearing base 52, the bearing base 52 is used for bearing goods, wheels 53 are arranged at the bottom of the bearing base 52, and hub motors are arranged in the wheels 53 to achieve auxiliary power assistance.

According to the wearing wheeled helping hand device that bears a burden that this application embodiment provided, helping hand dolly 50 can assist the helping hand including in-wheel motor, can reduce the soldier effectively and because of bearing a burden the energy loss that produces, and then can improve the ability of individual soldier's operation. This application backplate 11 carries out swivelling joint through universal joint subassembly 20 with buffer bracket 30, when actual combat, can make things convenient for the soldier to jump, crawl etc. action, reduces the interference that booster unit removed the soldier.

This application backplate 11 is connected with helping hand dolly 50 through buffer bracket 30, and buffer bracket 30 can cushion the interact power (relative displacement) between backplate 11 and helping hand dolly 50, and then can provide soldier's use comfort level to can reduce the interference that booster unit removed the soldier.

The buffer bracket 30 and the power-assisted trolley 50 are hinged with each other through the hinge assembly 40, so that a certain buffer effect can be achieved, and the interference of the power-assisted device on the movement of soldiers can be reduced. In addition, can also improve the flexibility ratio of using, when finishing using, can fold the device to reduce storage space, and conveniently carry.

The wearing formula wheeled helping hand device that bears a burden that this application embodiment provided can use military affairs and civilian life field simultaneously. In the military aspect, the electric foldable cart which can replace the load of the soldier and accords with the standard quality of operation can be provided for the soldier in the highland and mountainous area operation, and the energy loss of the soldier caused by the load can be effectively reduced. In the aspect of the civilian life, can provide help for the staff who bears the disinfectant box during the epidemic situation, reduce the energy loss that the staff produced because of bearing a burden effectively.

Optionally, the hub motor controller is controlled wirelessly, and the vehicle speed can be controlled in a wireless connection mode (for example, through a remote controller), so that the power assisting device can be conveniently and rapidly put on or taken off and used.

Fig. 4 is a schematic structural diagram of the wearing mechanism 10 according to the embodiment of the present application. Fig. 5 is a schematic structural diagram of a buffer bracket 30 according to an embodiment of the present application. Fig. 6 is a schematic structural diagram of a power-assisted cart 50 provided in the embodiment of the present application. Fig. 7 is an enlarged view of the back view of region a in fig. 1.

As shown in fig. 4 to 7, in the embodiment of the present application, the hinge assembly 40 includes a hinge shaft 41, a bushing 42, and a positioning assembly, and the hinge shaft 41 and the bushing 42 are hinged to each other. The articulated shaft 41 is fixed on the power-assisted trolley 50, and the shaft sleeve 42 is fixed on the buffer bracket 30; the positioning assembly serves to rotatably position the hinge shaft 41 and the bushing 42 to position the buffering bracket 30 in the working position or the folded position.

Specifically, the hinge shaft 41 is fixedly mounted on the connecting plate 57 of the assist trolley 50 through the hinge shaft mounting seat 58, and the shaft sleeve 42 is fixedly mounted on the buffer bracket 30 through the shaft sleeve connecting block 35.

At this time, the hinge shaft mounting seat 58 may be connected to the plate 57 by means of bolts through the second mounting screw holes 59 formed in the hinge shaft mounting seat 58.

The positioning assembly is used for rotatably positioning the hinge shaft 41 and the bushing 42, and when the power assisting apparatus is required to be used, the bushing 42 is rotated to a predetermined position with respect to the hinge shaft 41 to position the buffer bracket 30 at the working position as shown in fig. 1, so that the power assisting apparatus can be used for assisting power. When the use is finished, the boss 42 is rotated to another predetermined position with respect to the hinge shaft 41 to position the buffering bracket 30 at the folded position as shown in fig. 2, which facilitates the accommodation and carrying of the booster.

Alternatively, in other embodiments, the positions of the hinge shaft 41 and the shaft sleeve 42 may be reversed, for example, the hinge shaft 41 may be fixed to the buffer bracket 30, and the shaft sleeve 42 may be fixed to the assist cart 50.

The positioning assembly is further described below in conjunction with the figures. Fig. 8 is an exploded view of a hinge assembly 40 provided in an embodiment of the present application. Fig. 9 is a schematic structural view of a hinge shaft 41 provided in an embodiment of the present application.

As shown in fig. 5-9, the positioning assembly includes:

a positioning insertion hole 46 opened on the shaft sleeve 42;

the fixed baffle 43 is fixed on the shaft sleeve 42, and is provided with a through hole which is arranged corresponding to the positioning jack 46;

the positioning bolt 44 is movably arranged in the positioning jack 46, the positioning bolt 44 comprises a head part and a rod part which are connected with each other, the diameter of the head part is larger than that of the rod part, the tail end of the rod part passes through the through hole to penetrate out of the jack 46 for a user to pull out,

a positioning spring 45 sleeved on the rod part, wherein one end of the positioning spring is abutted against the head part, the other end of the positioning spring is abutted against the inner wall surface of the fixed baffle 43, and the positioning spring 45 is used for abutting the head part in a first positioning groove 47 or a second positioning groove 48 formed in the hinge shaft 41;

when the head is abutted in the first positioning groove 47, the buffer bracket 30 is positioned at the working position; when the head is abutted in the second positioning slot 48, the buffer bracket 30 is positioned in the folded position.

When the rotation operation is needed, for example, the power assisting device needs to be unfolded from the folded state for use, at this time, the user can overcome the elastic force of the positioning spring 45 to pull the positioning latch 44 outwards, the head part is separated from the second positioning groove 48, at this time, the buffer bracket 30 is rotated, when the power assisting device is completely unfolded, the user releases his hand, the head part of the positioning latch 44 is inserted into the first positioning groove 47 under the elastic force of the positioning spring 45, and the buffer bracket 30 is positioned at the working position.

When needs enter into fold condition from the open mode and accomodate booster unit, at this moment, the user can overcome the elasticity of positioning spring 45 and outwards draw location bolt 44, and the head breaks away from first constant head tank 47, rotates buffering support 30 this moment, waits that booster unit is by the complete folding time, and the user loosens the hand, and the head of location bolt 44 inserts in second constant head tank 48 under the elasticity effect of positioning spring 45, and buffering support 30 is located folding position.

As shown in fig. 3 and 4, the wearing mechanism 10 further includes a waist belt 12, and the back plate 11 is fixed to the waist belt 12. So as to be convenient for the user to wear. In other embodiments, the wearing mechanism 10 may further include a harness or the like, which is not limited in this application.

As shown in fig. 1-5, the universal joint assembly 20 includes a connecting ball 21 and a socket member 22, which are used in cooperation with each other, and the connecting ball 21 is rotatably disposed in the socket member 22.

The ball socket 22 is fixedly connected to the back plate 11 through the first connection column 13, and the connection ball 21 is fixedly connected to the buffer bracket 30 through the second connection column 34.

Alternatively, in other embodiments, the positions of the connecting ball 21 and the ball socket member 22 may be reversed, for example, the connecting ball 21 may be fixed to the back plate 11, and the ball socket member 22 may be fixed to the buffer bracket 30.

As shown in fig. 5, the buffer bracket 30 includes a front fixing plate 32, a rear fixing plate 33, and two elastic connection rods 31 in a "v" shape, the elastic connection rods 31 include a front connection rod 312, a damping spring 311, and a rear connection rod 313 connected in sequence, the two connection rods 312 are connected to the front fixing plate 32, and the two rear connection rods 313 are connected to the rear fixing plate 33. The front fixing plate 32 is fixedly connected with the second connecting column 34, and the rear fixing plate 33 is fixedly connected with the shaft sleeve connecting block 35.

As shown in fig. 3 and 6, the assisted cart 50 further includes a loading plate 51 and a folding plate 55, wherein the loading plate 51 is connected to the buffering bracket 30 at a front end thereof, the loading base 52 at a rear end thereof, and the folding plate 55 is hinged to the loading base 52 at a rear end thereof.

The bottom of the bearing base 52 is provided with a shock absorption base 56, the wheel 43 is rotatably arranged on the shock absorption base 56, and a shock absorption assembly 56 is arranged between the bearing base 52 and the shock absorption base 56.

In plateau, mountain region environment, the removal of helping hand dolly 50 can be disturbed in uneven road surface, and the gravity of load can make helping hand dolly 50 need bear bigger pressure when the shake, and helping hand dolly 50 car also can interfere people's removal when the speed of traveling of helping hand dolly 50 produces the deviation with soldier's moving speed, consequently need make the design of the shock attenuation of buffering of upper and lower, front and back two dimensions to the automobile body.

As shown in fig. 7 and 8, the shaft sleeve 42 is detachably connected to the buffer bracket 30 through the shaft sleeve connecting block 35. Specifically, the shaft sleeve connecting block 35 is detachably connected with the rear fixing plate 33 through a first mounting screw hole 36 formed in the rear fixing plate.

The power assisting device provided by the embodiment of the application has a modular design, and a plurality of power assisting trolleys 50 can be spliced for use. Fig. 10 is a schematic structural diagram of two power-assisted trolleys 50 after modular splicing.

At this time, the shaft sleeve connecting blocks 35 of the two booster units and the buffer bracket 30 (i.e., the fixing plate 33) are disassembled and separated from each other, the two shaft sleeve connecting blocks 35 are fixedly connected, and the two booster cars 50 are assembled into the 4-wheel booster unit shown in fig. 10. Through the arrangement, the two power-assisted trolleys 50 can be spliced into the four-wheel flat car for transporting wounded persons or loads with larger weight, products are converted into independent control from combination of the persons and the vehicles, and diversity of the power-assisted device is enhanced.

Optionally, at this time, the operation of the 4-wheel power assisting device may be controlled by a remote controller of one of the power assisting devices, or the operation of the 4-wheel power assisting device may be simultaneously controlled by two remote controllers of two power assisting devices, which is not limited in this application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wearable wheel type load-bearing power assisting device is characterized by comprising a wearing mechanism (10), a universal joint component (20), a buffer bracket (30), a hinge component (40) and a power assisting trolley (50); wherein the content of the first and second substances,

the wearing mechanism (10) is used for wearing on a human body;

the front end of the buffer support (30) is connected with the wearing mechanism (10) through the universal joint component (20), and the rear end of the buffer support is connected with the power-assisted trolley (50) through the hinge component (40);

the power assisting trolley (50) comprises a bearing base (52), wherein the bearing base (52) is used for bearing cargos, wheels (53) are arranged at the bottom of the bearing base (52), and hub motors are arranged in the wheels (53) so as to realize auxiliary power assisting.

2. The booster of claim 1, wherein the hinge assembly (40) comprises a hinge shaft (41), a bushing (42), and a positioning assembly, the hinge shaft (41) and the bushing (42) being hinged to each other;

the articulated shaft (41) is fixed on one of the buffer bracket (30) and the power-assisted trolley (50); the shaft sleeve (42) is fixed on the other one of the buffer bracket (30) and the power-assisted trolley (50);

the positioning component is used for rotatably positioning the hinge shaft (41) and the shaft sleeve (42) so as to position the buffer bracket (30) at a working position or a folding position.

3. The booster of claim 2, wherein the positioning assembly comprises:

the positioning insertion hole (46) is formed in the shaft sleeve (42);

the fixed baffle (43) is fixed on the shaft sleeve (42), a through hole is formed in the fixed baffle, and the through hole is arranged corresponding to the positioning insertion hole (46);

the positioning bolt (44) is movably arranged in the positioning insertion hole (46), the positioning bolt (44) comprises a head part and a rod part which are connected with each other, the diameter of the head part is larger than that of the rod part, and the tail end of the rod part passes through the through hole to penetrate out of the insertion hole (46) so as to be pulled out by a user;

the positioning spring (45) is sleeved on the rod part, one end of the positioning spring is abutted against the head part, the other end of the positioning spring is abutted against the inner wall surface of the fixed baffle (43), and the positioning spring (45) is used for abutting the head part in a first positioning groove (47) or a second positioning groove (48) formed in the hinge shaft (41);

when the head is abutted in the first positioning groove (47), the buffer bracket (30) is positioned at a working position; when the head is abutted in the second positioning groove (48), the buffer bracket (30) is positioned at a folding position.

4. The booster of claim 3, wherein the sleeve (42) is removably connected to the cushioning support (30) by a sleeve connection block (35).

5. The booster of any one of claims 1 to 4, wherein the wearing mechanism (10) includes a back plate (11) and a waist belt (12), the back plate (11) being secured to the waist belt (12), the cushioning mount (30) being connected to the back plate (11) by the gimbal assembly (20).

6. The booster of any one of claims 1 to 4, wherein the booster trolley (50) further comprises a carrying plate (51) and a folding plate (55), wherein the carrying plate (51) is connected with the buffering bracket (30) at a front end thereof and with the carrying base (52) at a rear end thereof, and the folding plate (55) is hinged to the carrying base (52) at a rear end thereof.

7. The booster of any one of claims 1 to 4, wherein a shock absorbing base (56) is provided at a bottom of the load base (52), the wheel (43) is rotatably provided on the shock absorbing base (56), and a shock absorbing assembly (56) is provided between the load base (52) and the shock absorbing base (56).

8. The booster of any one of claims 1 to 4, wherein the buffer bracket (30) comprises a front fixing plate (32), a rear fixing plate (33) and two elastic connecting rods (31) in a splayed design, the elastic connecting rods (31) comprise a front connecting rod (312), a damping spring (311) and a rear connecting rod (313) which are connected in sequence, the two connecting rods (312) are connected with the front fixing plate (32), and the two rear connecting rods (313) are connected with the rear fixing plate (33).

9. The booster of claim 5 wherein the gimbal assembly (20) comprises a connecting ball (21) and a socket member (22) for cooperation with each other;

the connecting ball (21) is fixedly connected to one of the back plate (11) and the buffer bracket (30), and the ball socket member (22) is connected to the other of the back plate (11) and the buffer bracket (30).

10. The booster of claim 4, wherein the shaft sleeve connecting blocks (35) of the two booster sets and the buffer bracket (30) are disassembled and separated from each other, the two shaft sleeve connecting blocks (35) are fixedly connected, and then the two booster trolleys (50) are assembled into the 4-wheel booster.