CN220596060U - Trolley conveying device - Google Patents

Abstract

The utility model relates to the technical field of transportation and installation of automobile workpieces, in particular to a trolley transportation device which comprises a base, a transmission supporting unit and a fixing unit. The transmission supporting unit and the fixing unit are connected to the base. The base takes the frame as a main body. And a bracket is fixed on two sides of the frame respectively. One end of the bracket is fixed with a T-shaped plate, and the other end is fixed with a connecting plate. And a vertical plate is respectively arranged between the two T-shaped plates and the two connecting plates of the two different brackets. Four feet are arranged below the frame, and a foot support is arranged on each foot edge. At the both ends of riser, set up multiunit gyro wheel support, gyro wheel is connected to the gyro wheel support. The trolley conveying device can effectively reduce the cost of manual conveying, can transversely move the trolley in an effective space, and can accurately park the trolley in a designated working area by a unique fixing mechanism, thereby effectively carrying out linkage work with peripheral equipment.

Description

Trolley conveying device

Technical Field

The utility model relates to the technical field of transportation and installation of automobile workpieces, in particular to a trolley transportation device.

Background

After the automobile workpiece is cast, the automobile workpiece needs to be transported to the next station for further processing through a trolley, and the traditional automobile workpiece manufacturing and processing processes are all carried out manually, because a certain distance is reserved between the working procedures. After the traditional workpiece is processed at the last station, the workpiece needs to be manually conveyed to the next station, and the process has a certain danger, and also occupies a large amount of normal working time of workers, so that the efficiency of the workers is greatly reduced in an intangible way, the situation is absolutely impermissible for factories with higher productivity, but if a complete set of automatic conveying equipment is adopted, the cost is relatively high for the factories, so that a conveying device with low cost and capability of improving the working efficiency of the workers is needed for most factories in the automobile workpiece manufacturing industry.

Disclosure of Invention

The utility model aims to provide a trolley conveying device, which mainly solves the technical problems existing in the prior art.

The utility model provides a trolley transporting device which is characterized by comprising a base, a transmission supporting unit and a fixing unit; the transmission supporting unit and the fixing unit are connected to the base;

the base comprises a frame, a bracket, a T-shaped plate, a connecting plate, a vertical plate, a foot margin, a foot support, a roller bracket and rollers; fixing one bracket on each side of the frame; one end of the bracket is fixed with the T-shaped plate, and the other end is fixed with the connecting plate; the T-shaped plates of the two brackets correspond to the connecting plates in position; one vertical plate is arranged between two T-shaped plates which belong to two different brackets; one vertical plate is also arranged between the two connecting plates belonging to two different brackets; four feet are arranged below the frame, and one foot support is arranged on each foot edge; and a plurality of groups of roller supports are arranged at two ends of the vertical plate, and the rollers are connected to the roller supports.

Further, the transmission support unit comprises a first driven support mechanism, a second driven support mechanism, a driving mechanism and a first chain; the first driven supporting mechanism is fixed on the two T-shaped plates; the second driven supporting mechanism is fixed on the two connecting plates; the first chains are sleeved between the first driven supporting mechanisms and the first driven supporting mechanisms.

Further, between the first chains, a first tensioning idler and a second T-plate are provided; the first tensioning idler is fixed to the bracket by the second T-plate; a first oil groove is also arranged below the first chain, and the first oil groove is fixed on the frame.

Further, the first driven supporting mechanism comprises a fixing strip, a fixing block, a first bearing seat, a first driven wheel and a first driven rotating shaft; a long waist hole is arranged on the T-shaped plate; the fixing block and the fixing strip are both fixed on the T-shaped plate; the fixing strips are respectively positioned above and below the long waist hole to form a first groove; the fixed block is positioned at one side of the first groove; the first bearing seat is matched with the first groove, embedded into the first groove and connected to the fixed block through a bolt; the first driven rotating shaft passes through the long waist hole and is sleeved in the first bearing seat; the first driven wheel is arranged on the first driven rotating shaft.

Further, the second driven supporting mechanism comprises a second bearing, a second driven wheel and a second driven rotating shaft; the second bearing is fixed on the connecting plate; sleeving the second driven rotating shaft in the two second bearing shafts of the two groups of opposite connecting plates; the second driven wheels are respectively arranged at the two ends of the second driven rotating shaft; a second groove is formed in the middle of the second driven rotating shaft; the driving mechanism is connected to the second driven rotating shaft through the second groove.

Further, the driving mechanism comprises a driving chain wheel, a second chain, a driving motor and a second tensioning idler wheel; the transmission chain wheel is fixed on the second driven supporting mechanism; the transmission motor is connected to the frame through the motor fixing seat; the transmission motor is in driving connection with the transmission chain wheel through the second chain; a second tensioning idler wheel fixed on the motor fixing seat is arranged between the second chains; and a second oil groove is arranged below the second chain and is fixed on the frame.

Further, the fixing unit comprises a front side fixing mechanism, a rear side fixing mechanism and a transverse fixing mechanism; the front side fixing mechanism, the rear side fixing mechanism and the transverse fixing mechanism are all fixed on the frame and are positioned between the two brackets; the front side fixing mechanism is close to the tail end of the frame, the rear side fixing mechanism is close to the front end of the frame, and the transverse fixing mechanism is located between the front side fixing mechanism and the rear side fixing mechanism and is close to one side of the frame.

Further, the front side fixing mechanism comprises a first cylinder, a square block, a front side fixing bearing seat, an H-shaped frame and a front side fixing rotating shaft; the two groups of front fixed bearing seats are fixed on the frame; the front fixed rotating shaft is sleeved in the front fixed bearing seat; one end of the H-shaped frame is fixed on the front fixed rotating shaft through a village sleeve and is driven to rotate by the front fixed rotating shaft; two square blocks are arranged at the other end of the H-shaped frame; the first cylinder is secured to the frame while driving a middle bar connected to the H-shaped frame.

Further, the rear fixing mechanism comprises a rear fixing seat, a rear connecting plate, a rear fixing block, a second cylinder, a rear rocker arm and a rear pressure block; the rear fixing seat is fixed on the frame; two rear connecting plates are arranged on the rear fixing seat; the top end of the rear connecting plate is provided with the rear fixing block, and the second cylinder is arranged on the rear fixing block; the rear side rocker arm is arranged on the rear side fixing seat; the tail end of the rear rocker arm is connected to the movable end of the second cylinder, and the front end of the rear rocker arm is connected to the rear pressing block.

Further, the transverse fixing mechanism comprises a transverse fixing seat, a transverse fixing frame, a transverse bearing seat, a third cylinder, a transverse fixing block, a transverse rocker arm and a transverse pressing block; the transverse fixing seat is fixed on the frame; the transverse fixing frame and the transverse bearing seat are arranged on the transverse fixing seat; the transverse rocker arm is arranged on the transverse fixed frame; the third cylinder is fixed to the transverse bearing seat through the transverse fixing block and is in driving connection with the tail end of the transverse rocker arm; and the front end of the transverse rocker arm is provided with the transverse pressing block.

The trolley conveying device can effectively reduce the cost of manual conveying, can transversely move the trolley in an effective space, and can accurately park the trolley in a designated working area by a unique fixing mechanism, thereby effectively carrying out linkage work with peripheral equipment.

Drawings

FIG. 1 is a schematic top view of a preferred embodiment of the trolley transport apparatus of the present utility model;

FIG. 2 is a schematic bottom view of a preferred embodiment of the trolley transport apparatus of the present utility model;

FIG. 3 is a schematic view of the front side securing mechanism of a preferred embodiment of the trolley transport apparatus of the present utility model;

FIG. 4 is a schematic view of the rear side securing mechanism of a preferred embodiment of the trolley transport apparatus of the present utility model;

FIG. 5 is a schematic view of the transverse fixing mechanism of a preferred embodiment of the trolley transporting device of the present utility model;

FIG. 6 is a schematic view of the first driven support mechanism of a preferred embodiment of the trolley transport apparatus of the present utility model;

fig. 7 is a schematic view showing an operation state of a preferred embodiment of the carriage transport device of the present utility model.

The device comprises a 1-foot leg, a 2-foot support, a 3-frame, a 4-first oil groove, a 5-roller support, a 6-roller, a 7-second oil groove, a 8-motor fixing seat, a 9-second driven rotating shaft, a 10-first driven wheel, a 11-first driven rotating shaft, a 12-first chain, a 13-T-shaped plate, a 14-fixing strip, a 15-first bearing seat, a 16-fixing block, a 17-first tensioning idler, a 18-second T-shaped plate, a 19-second tensioning idler, a 20-transmission motor, a 21-second transmission chain, a 22-transmission sprocket, a 23-vertical plate, a 24-second driven wheel, a 25-connecting plate, a 26-second bearing seat, a 27-support, a 28-front side fixing seat, a 29-square block, a 30-first cylinder, a 31-H-shaped frame, a 32-front side fixing rotating shaft, a 33-rear side rocker arm, a 34-rear side pressing block, a 35-rear side fixing seat, a 36-rear side connecting plate, a 37-second cylinder, a 38-rear side fixing block, a 39-transverse fixing seat, a 40-transverse pressing block, a 41-transverse pressing block, a 42-transverse fixing mechanism, a 42-transverse fixing seat, a 42-transverse mechanism, a 48-transverse mechanism and a transverse mechanism.

Detailed Description

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

Examples

Referring to fig. 1 to 6, the present utility model discloses a trolley transporting device, which is a preferred embodiment of the present utility model, and comprises a base, a transmission supporting unit and a fixing unit. The base is used for fixing the device on the ground, and the transmission supporting unit is installed on the base and used for transferring the trolley. When the trolley reaches a designated station, the trolley is fixed by a fixing unit arranged on the base, so that equipment or workers on the station can conveniently process workpieces placed on the trolley.

The main body of the base is a frame 3 with a rectangular outer frame. Two brackets 27 are respectively installed in parallel along the longitudinal direction of the top side of the frame 3. On each bracket 27, one end of which is fixed a T-shaped plate 13 and the other end of which is fixed a connecting plate 25. The two brackets 27 are arranged in parallel, and thus the T-shaped plate 13 and the connection plate 25 mounted on the two brackets 27 are arranged opposite to each other. Between the two T-shaped plates 13 and the two connecting plates 25, one riser 23 is connected, respectively. Thus, the two risers 23 and the two brackets 27 form a rectangle that overlies the frame 3, forming the base frame of the whole apparatus.

On the side of the frame 3 close to the ground, four feet 1 fixed to the frame 3 are provided near the four corners of the frame 3. On each leg 1 side, a foot support 2 is also provided, which is likewise fastened to the frame 3. The foot margin 1 is in contact with the ground for supporting the entire apparatus, and the foot rest 2 is for positioning the frame 3 and fixing the frame 3 to the ground.

On each riser 23 of the frame 3, two sets of rollers 6 are fixed by roller brackets 5. Thus, 2 groups of 4 rollers are respectively arranged in the front-back direction of the frame 3, so that the trolley on the device can be stably transported, and the trolley is prevented from being stably transported due to excessive inclination when entering and leaving the device.

The transmission support unit includes a first driven support mechanism, a second driven support mechanism, a driving mechanism, and a first chain 12. The first driven support mechanism and the second driven support mechanism are connected through a first chain 12 and driven by a driving mechanism. The first chain 12 is in direct trolley contact, completing the transfer of the trolley. The first driven supporting mechanism and the second driven supporting mechanism are arranged on the base. Specifically, a first driven support mechanism is bridged and fixed to the two T-shaped plates 13, and a second driven support mechanism is bridged and fixed to the two connecting plates 25. In the present embodiment, two first chains 12 are interposed between the first driven support mechanism and the first driven support mechanism, and are arranged along the longitudinal direction of the frame 3. On the bracket 27 between each first chain, a first tensioning idler 17 and a second T-plate 18 are mounted. The second T-plate 18 is fixed to the side of the bracket 27 and the first tensioning idler 17 is connected to the second T-plate 18 to support the first chain 12. The first tensioning idler 17 is used to tension the first chain 12. A first oil sump 4 is also installed below the first chain 12. The first oil groove 4 is fixed to the frame 3, and extends to both sides for preventing oil drops of the first chain 12 from being dropped to the ground. The whole mechanism can effectively carry out translational conveying on the trolley.

The first driven support mechanism comprises a first driven wheel 10, a first driven rotating shaft 11, a fixing strip 14, a first bearing seat 15 and a fixing block 16. On each T-shaped plate 13, a long waist hole is provided. Two fixing strips 14 are fixed on the T-shaped plate 13 and are arranged in parallel on the upper side and the lower side of the long waist hole. Between the two fixing strips 14, a first recess is formed. On one side of the first recess, a fixing block 16 is provided, the fixing block 16 being also fixed to the T-shaped plate 13. The first bearing seat 15 is provided with a protrusion corresponding to the first groove, which is caught in the first groove formed by the two fixing bars 14, and restricts the first bearing seat 15 to move only in the direction of the first groove (left-right movement). At the same time, the fixed block 16 is connected to the upper first bearing housing 15 by bolts 50. The bolt 50 restricts the first bearing housing 15 from moving left and right. On the opposite T-plate 13 there is a first bearing seat 15, respectively. The first driven rotating shaft 11 passes through the long waist holes of the two T-shaped plates 13 and the two first bearing seats 15, and is sleeved in the two first bearing seats 15. The first driven wheel 10 is mounted on a first driven rotating shaft 11. A first chain 12 is wound around the first driven wheel 10. The adjusting bolt 50 can push the first bearing seat 15 to move along the direction of the first groove, meanwhile, the first driven rotating shaft 11 is driven by the first bearing seat 15 to move along the long waist hole on the T-shaped plate 13, so that the distance between the first driven supporting mechanism and the second driven supporting mechanism is adjusted, and the tightness of the first chain 12 is further adjusted.

The second driven support mechanism includes a second driven rotating shaft 9, a second driven wheel 24, and a second bearing 26. The connection plates 25 are provided in two and are connected to oppositely mounted brackets 27. A second bearing 26 is fixed to each connecting plate 25. The second driven rotating shaft 9 passes through and is sleeved in two second bearing shafts 26. The second driven wheels 24 are mounted at both ends of the second driven rotating shaft 9. The first chain 12 is wound around the second driven wheel 24 as well, so that the first driven wheel 10 and the second driven wheel 24 rotate synchronously. In the middle of the second driven shaft 9 a recess is provided for connection to a drive mechanism. The power from the driving mechanism drives the second driven rotating shaft 9 to rotate from the groove, so as to drive the second driven wheel 24 to rotate, and then drives the first driven wheel 10 to rotate further through the first chain 12. In the process, the trolley is driven in transit by the first chain 12.

The drive mechanism comprises a second idler pulley 19, a drive motor 20, a second chain 21 and a drive sprocket 22. The power of the driving mechanism comes from a transmission motor 20, which is fixed on the frame 3 through a motor fixing seat 8. The driving sprocket 22 is engaged with a groove in the middle of the second driven rotation shaft 9, and is caught in the groove. A second chain 21 is wound around the rotating end of the drive motor 20 and the drive sprocket 22. When the transmission motor 20 rotates, the transmission sprocket 22 is driven to rotate by the second chain 21, so that the second driven rotating shaft 9 is driven to rotate by the transmission sprocket 22. A second idler pulley 19 is fixed to the motor mount 8. The second idler pulley 19 is located between the upper and lower sides of the second chain 21 for adjusting the tightness of the second chain. A second oil groove 7 is installed below the second chain 21. The second oil groove 7 is fixed to the frame 3 for preventing oil drops of the second chain 21 from being dropped to the ground.

The trolley runs along the first chain 12 and when it reaches a given position, for example a station, it is necessary to fix the trolley by the action of the fixing unit in order to complete the process. The fixing unit is constituted by a front fixing mechanism 47, a rear fixing mechanism 48, and a lateral fixing mechanism 49 fixed to the frame 3. All the fixing units are located between the two brackets 27. The front fixing mechanism 47 is near the tip for supporting the dolly from the front. The rear fixing mechanism 48 is near the front end, and cooperates with the front end fixing mechanism to restrict the forward and backward movement of the carriage, i.e., the running direction of the first chain 12. The lateral fixing mechanism 49 further controls the left-right displacement of the trolley, i.e. perpendicular to the running direction of the first chain 12.

The front fixing mechanism 47 includes a first cylinder 30, a square block 29, a front fixed bearing bracket 28, an H-shaped frame 31, and a front fixed rotating shaft 32. The front fixed bearing blocks 32 are arranged in two opposite directions and fixed on the frame 3. The front fixed shaft 32 passes through and is sleeved in the two front fixed bearing seats 32. The two end arms of one side of the H-shaped frame 31 are fixed to the front fixed shaft 32 by a sleeve so as to be rotatable together with the front fixed shaft 32. Two square blocks 29 are fixedly mounted on the other two end arms of the H-shaped frame 31. The first cylinder 30 is fixed to the frame 3, and its movable portion is connected to the middle bar of the H-shaped frame 31, pushing the H-shaped frame 31 to rotate about the front fixed rotation shaft 32, thereby raising or lowering the square block 29. When the square block 29 is lifted, the trolley is stopped from running from the front.

The rear fixing mechanism 48 includes a rear rocker arm 33, a rear pressure block 34, a rear fixing base 35, a rear connecting plate 36, a second cylinder 37, and a rear fixing block 38. The rear fixing base 35 is fixed to the frame 3. The rear connecting plate 36 has two pieces and is fixed on the rear fixing seat 35 and arranged in parallel. On top of the two rear connection plates 36, rear fixing blocks 38 are mounted. The rear side fixing block 38 is a mounting fixing platform of the second cylinder 37. The second cylinder 37 is fixed to the rear side fixing block 38. The rear rocker arm 33 is mounted on a rear fixed seat 35, the connection point of which forms the fulcrum of the rear rocker arm. The trailing end of the rear rocker arm 33 is connected to the movable end of the second cylinder 37, while the leading end is fixed with the rear presser 34. The rear rocker arm 33 swings, raising or lowering the rear pressure block 34 by the action of the second cylinder. When the rear-side presser 34 is lifted, the carriage is stopped from traveling from the rear. When the carriage is fixed by the front fixing mechanism 47, the second cylinder 37 in the rear fixing mechanism 48 operates, and the carriage is clamped by cooperation with the front fixing mechanism 47, so that the movement of the carriage is restricted.

The transverse fixing mechanism 49 comprises a transverse fixing frame 39, a transverse pressing block 40, a transverse fixing block 41, a transverse rocker arm 42, a third cylinder 43, a transverse bearing seat 44 and a transverse fixing seat 45. The transverse fixing seat 45 is fixed to the frame 3. A transverse fixing bracket 39 and two transverse bearing blocks 44 are mounted on a transverse fixing bracket 45. The lateral rocker arm 42 is mounted on the lateral mount 39. The third cylinder 43 is fixed on the transverse fixing block 41, and the transverse fixing block 41 is sleeved in two transverse bearing seats 44. The movable portion of the third cylinder 43 is connected to the end of the lateral rocker arm 42. The lateral presser 40 is mounted at the front end of the lateral rocker arm 42. When the third cylinder 43 is actuated, the lateral rocker 42 moves, the lateral presser 40 turns up, and the trolley is caught from the side. When the carriage is restricted from moving forward and backward by the front fixing mechanism 47 and the rear fixing mechanism 48, the carriage is further fixed to a predetermined position by the lateral fixing mechanism 49, and the movement from side to side is restricted.

Referring to fig. 7, the working principle and the using process of a preferred embodiment of the present utility model are shown: the transmission motor 20 drives the first chain 12, and the trolley 46 is driven by the first chain 12 to run. When the carriage 46 is transported to the front side fixing mechanism 47, the first cylinder of the front side fixing mechanism 47 is lifted up, and the carriage 46 is restricted from continuing to be transported, which is in a ready state. Then, the second cylinder of the rear fixing mechanism 48 is lifted up, and the carriage 46 is clamped from behind, thereby preventing the carriage from moving forward and backward. Finally, the transverse fixing mechanism 49 is lifted up under the drive of the third cylinder to limit the left and right movement of the trolley, so that the trolley is fixed in a designated working area. At this time, the peripheral equipment performs processing in linkage, for example, a robot arm welds or grabs away the workpiece in the carriage 46. After the work task is completed, the front side fixing mechanism 47, the rear side fixing mechanism 48, and the lateral fixing mechanism 49 retract the air cylinders, thereby releasing the dolly 46. The trolley 46 is driven by the first chain 12 to continue to be transported to other stations.

The foregoing description is merely illustrative of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model. Equivalent changes and modifications are intended to be within the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The trolley conveying device is characterized by comprising a base, a transmission supporting unit and a fixing unit; the transmission supporting unit and the fixing unit are connected to the base;

the base comprises a frame, a bracket, a T-shaped plate, a connecting plate, a vertical plate, a foot margin, a foot support, a roller bracket and rollers; fixing one bracket on each side of the frame; one end of the bracket is fixed with the T-shaped plate, and the other end is fixed with the connecting plate; the T-shaped plates of the two brackets correspond to the connecting plates in position; one vertical plate is arranged between two T-shaped plates which belong to two different brackets; one vertical plate is also arranged between the two connecting plates belonging to two different brackets; four feet are arranged below the frame, and one foot support is arranged on each foot edge; and a plurality of groups of roller supports are arranged at two ends of the vertical plate, and the rollers are connected to the roller supports.

2. The trolley transporting apparatus as claimed in claim 1, wherein the transfer support unit includes a first driven support mechanism, a second driven support mechanism, a driving mechanism, and a first chain; the first driven supporting mechanism is fixed on the two T-shaped plates; the second driven supporting mechanism is fixed on the two connecting plates; the first chains are sleeved between the first driven supporting mechanisms and the first driven supporting mechanisms.

3. The trolley conveyor of claim 2, wherein between the first chains, a first tensioning idler and a second T-plate are provided; the first tensioning idler is fixed to the bracket by the second T-plate; a first oil groove is also arranged below the first chain, and the first oil groove is fixed on the frame.

4. The trolley transporting device as claimed in claim 2, wherein the first driven supporting mechanism comprises a fixing bar, a fixing block, a first bearing housing, a first driven wheel and a first driven rotating shaft; a long waist hole is arranged on the T-shaped plate; the fixing block and the fixing strip are both fixed on the T-shaped plate; the fixing strips are respectively positioned above and below the long waist hole to form a first groove; the fixed block is positioned at one side of the first groove; the first bearing seat is matched with the first groove, embedded into the first groove and connected to the fixed block through a bolt; the first driven rotating shaft passes through the long waist hole and is sleeved in the first bearing seat; the first driven wheel is arranged on the first driven rotating shaft.

5. The trolley transporting apparatus as claimed in claim 2, wherein the second driven support mechanism comprises a second bearing, a second driven wheel, and a second driven shaft; the second bearing is fixed on the connecting plate; sleeving the second driven rotating shaft in the two second bearing shafts of the two groups of opposite connecting plates; the second driven wheels are respectively arranged at the two ends of the second driven rotating shaft; a second groove is formed in the middle of the second driven rotating shaft; the driving mechanism is connected to the second driven rotating shaft through the second groove.

6. The trolley transporting apparatus as claimed in claim 2, wherein the driving mechanism comprises a drive sprocket, a second chain, a drive motor and a second idler tensioner; the transmission chain wheel is fixed on the second driven supporting mechanism; the transmission motor is connected to the frame through a motor fixing seat; the transmission motor is in driving connection with the transmission chain wheel through the second chain; a second tensioning idler wheel fixed on the motor fixing seat is arranged between the second chains; and a second oil groove is arranged below the second chain and is fixed on the frame.

7. The trolley transporting apparatus as claimed in claim 1, wherein the fixing unit includes a front side fixing mechanism, a rear side fixing mechanism, and a lateral fixing mechanism; the front side fixing mechanism, the rear side fixing mechanism and the transverse fixing mechanism are all fixed on the frame and are positioned between the two brackets; the front side fixing mechanism is close to the tail end of the frame, the rear side fixing mechanism is close to the front end of the frame, and the transverse fixing mechanism is located between the front side fixing mechanism and the rear side fixing mechanism and is close to one side of the frame.

8. The trolley transporting device as claimed in claim 7, wherein the front fixing mechanism comprises a first cylinder, a square block, a front fixing bearing block, an H-shaped frame, and a front fixing shaft; the two groups of front fixed bearing seats are fixed on the frame; the front fixed rotating shaft is sleeved in the front fixed bearing seat; one end of the H-shaped frame is fixed on the front fixed rotating shaft through a village sleeve and is driven to rotate by the front fixed rotating shaft; two square blocks are arranged at the other end of the H-shaped frame; the first cylinder is secured to the frame while driving a middle bar connected to the H-shaped frame.

9. The trolley transporting apparatus of claim 7, wherein the rear fixing mechanism comprises a rear fixing base, a rear connecting plate, a rear fixing block, a second cylinder, a rear rocker arm, and a rear pressing block; the rear fixing seat is fixed on the frame; two rear connecting plates are arranged on the rear fixing seat; the top end of the rear connecting plate is provided with the rear fixing block, and the second cylinder is arranged on the rear fixing block; the rear side rocker arm is arranged on the rear side fixing seat; the tail end of the rear rocker arm is connected to the movable end of the second cylinder, and the front end of the rear rocker arm is connected to the rear pressing block.

10. The trolley transporting device of claim 7, wherein the transverse fixing mechanism comprises a transverse fixing seat, a transverse fixing frame, a transverse bearing seat, a third cylinder, a transverse fixing block, a transverse rocker arm and a transverse pressing block; the transverse fixing seat is fixed on the frame; the transverse fixing frame and the transverse bearing seat are arranged on the transverse fixing seat; the transverse rocker arm is arranged on the transverse fixed frame; the third cylinder is fixed to the transverse bearing seat through the transverse fixing block and is in driving connection with the tail end of the transverse rocker arm; and the front end of the transverse rocker arm is provided with the transverse pressing block.