CN209956804U

CN209956804U - Track switching mechanism for trolley

Info

Publication number: CN209956804U
Application number: CN201920404769.8U
Authority: CN
Inventors: 张玲姿
Original assignee: Zhejiang Tianheng Automatic Packaging Machinery Co Ltd
Current assignee: Zhejiang Tianheng Automatic Packaging Machinery Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-01-17
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a platform truck switches track mechanism, it includes at least a straight line track and an arc track, the straight line track includes first transmission of electricity rail and the first support rail that is parallel to each other, the arc track includes second transmission of electricity rail and the second support rail that is parallel to each other, form transmission of electricity rail switching district between the first transmission of electricity rail and the second transmission of electricity rail of straight line track and arc track junction, transmission of electricity rail switching district is equipped with transmission of electricity rail switching unit; the power transmission rail point switch unit comprises a first base station, at least one first linear slide rail arranged on the first base station, a first slide seat arranged on the first linear slide rail in a sliding mode, and a first displacement power source arranged on the first base station, wherein the first displacement power source is connected with the first slide seat in a transmission mode, and a first power transmission rail connection section which is arranged at intervals and is linear and a second power transmission rail connection section which is arranged in an arc mode are arranged on the first slide seat. The utility model provides a rail mechanism is switched to platform truck can improve conveying efficiency.

Description

Track switching mechanism for trolley

Technical Field

The utility model relates to a platform truck switches track mechanism.

Background

When carrying long-distance or frequent cargo, a track is usually erected on the conveying route, and a trolley is arranged on the track, so that the trolley can convey the cargo to and fro on the conveying route under the guidance of the track.

In the peak time period of cargo transportation, because the amount of the cargo to be transported is large, in order to improve the cargo transportation efficiency, a plurality of trolleys are usually arranged on the track, so that the plurality of trolleys simultaneously move on the track to transport the cargo. The existing method for removing the trolley from the track mainly includes the steps of arranging a main track and a branch track, erecting the main track along a conveying line to be used as a track for the trolley to convey goods, arranging the branch track and the main track in a staggered mode, enabling the trolley to be changed into the branch track when the number of trolleys on the main track needs to be reduced, enabling the trolley to drive into a rest station or a maintenance area along the branch track for parking or maintenance, and enabling the trolley to drive into the main track from the branch track when the number of trolleys needs to be increased on the main track, so as to increase goods conveying efficiency. However, the track switching mechanism of the conventional trolley is limited to switch between the longitudinal and transverse linear tracks, but the arrangement of the longitudinal linear track and the transverse linear track cannot meet the requirement of each factory building environment, and more factory building environment terrains need to be arranged with the arc track to effectively use the factory building environment terrains.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a switching track mechanism for a trolley, which can switch track patterns according to the needs of peak and off-peak start so as to conveniently adjust the number of trolleys on the track, and the empty trolleys are recycled and the transportation amount is increased, thereby improving the transportation efficiency.

Based on the above problem, the utility model provides a technical scheme is:

the trolley switching track mechanism comprises at least one straight track and an arc track, wherein the straight track comprises a first power transmission rail and a first support rail which are parallel to each other, the arc track comprises a second power transmission rail and a second support rail which are parallel to each other, a power transmission rail switching area is formed between the first power transmission rail and the second power transmission rail at the joint of the straight track and the arc track, and the power transmission rail switching area is provided with a power transmission rail switching unit; the power transmission rail switch unit comprises a first base station, at least one first linear slide rail arranged on the first base station, a first slide seat arranged on the first linear slide rail in a sliding mode, and a first displacement power source arranged on the first base station, wherein the first displacement power source is in transmission connection with the first slide seat, a first power transmission rail joint section which is linear and a second power transmission rail joint section which is arc-shaped are arranged on the first slide seat at intervals, and the first slide seat enables the first power transmission rail joint section to be movably connected with or separated from the first power transmission rail under the driving of the first displacement power source, so that the second power transmission rail joint section is movably connected with or separated from the second power transmission rail.

In one embodiment thereof, the first support rail of the linear track forms an intersection with the second power transmission rail of the arcuate track, a support rail switching zone is formed on at least one side of the intersection, the support rail switching zone being provided with support rail switching units; the support rail switch unit comprises a second base station, at least one second linear slide rail arranged on the second base station, a second slide seat arranged on the second linear slide rail in a sliding mode, and a second displacement power source arranged on the second base station, wherein the second displacement power source is in transmission connection with the second slide seat, a first support rail connecting section is arranged on the second slide seat, and the second slide seat enables the first support rail connecting section to be movably connected with or separated from the first support rail under the driving of the second displacement power source.

In one embodiment, the first and second displacement power sources are cylinders.

In one embodiment, support rail switching zones are respectively disposed at two sides of the intersection of the first support rail and the second power transmission rail, two support rail switching units are respectively disposed at each support rail switching zone, and the two support rail switching units are respectively located between the second power transmission rail and the second support rail and between the second power transmission rail and the first support rail.

In one embodiment, the trolley switching track mechanism further includes a plurality of power transmission rail guide wheel groups, each power transmission rail guide wheel group includes a power transmission rail fixing seat and at least one first rail decompression roller disposed on one side of the power transmission rail fixing seat, the power transmission rail fixing seats are respectively fixed to the bottoms of the ends of the first power transmission rail and the second power transmission rail located in the power transmission rail switching area, a foot stand is disposed at the bottom of each power transmission rail fixing seat, the first rail decompression rollers protrude into the power transmission rail switching area, so that the first rail decompression rollers of the power transmission rails located on the power transmission rail fixing seats at the bottoms of the ends of the power transmission rail switching areas abut against or separate from the bottom surface of the first power transmission rail connecting section, and the first rail decompression rollers of the power transmission rails located at the bottoms of the ends of the power transmission rail switching areas are abutted against or separated from the bottom surface of the second power transmission rail connecting section, and the first rail decompression rollers of the power transmission rails located on the Abutting or separating.

In one embodiment, the switching track mechanism further includes a plurality of support rail guide wheel sets, each support rail guide wheel set includes a support rail fixing seat and at least one second rail pressure reducing roller disposed on one side of the support rail fixing seat, the bottom portions of the two end portions of the first support rail located in the support rail switching area are respectively fixed with the support rail fixing seats, the bottom portion of each support rail fixing seat is provided with a foot stand, and the second rail pressure reducing rollers extend to the support rail switching area to abut against or separate from the bottom surface of the first support rail connecting section.

In one embodiment, the support rail guide wheel set further includes a support rail positioning seat and a positioning wheel disposed on the support rail positioning seat, wherein the support rail positioning seat is disposed on each of the side surfaces of the first support rail located at the two end portions of the support rail switching region, and the positioning wheel protrudes to the support rail switching region to abut against or separate from the side surface of the first support rail connection section.

In one embodiment, the foot rest comprises a base and a stand arranged on the base, and the stand is connected with the base through a lifting module.

In one embodiment, the lifting module includes at least one lifting component, the lifting component includes a screw and two nuts engaged with the screw, the lower end of the screw is fixed on the base, and the upper end of the screw is locked on the vertical base through the two nuts.

In one embodiment, the arc-shaped track is located between two linear tracks which are parallel to each other, and two ends of the arc-shaped track are respectively connected with the linear tracks at the two ends.

Compared with the prior art, the utility model has the advantages that:

1. by adopting the technical scheme of the utility model, the rail form is switched according to the requirements of peak time period and off-peak time period of goods transportation by setting the linear rail and the arc rail and utilizing the matching of the rail switching area and the rail switching unit, so as to adjust the number of trolleys on the rail, increase the transportation amount and the recovery of empty trolleys, thereby improving the transportation efficiency;

2. by adopting the further technical scheme of the utility model, a transmission rail guide wheel group and a support rail guide wheel group are arranged, and the smoothness and the accuracy of the connection of the first transmission rail connecting section, the second transmission rail connecting section, the first transmission rail connecting section, the second transmission rail connecting section and the first support rail connecting section can be improved by the guidance and the support of the transmission rail guide wheel group and the support rail guide wheel group, and the support strength of the connection part of the first support rail connecting section and the first support rail is increased, so as to ensure the stability of the trolley travelling on the track;

3. adopt the utility model discloses further technical scheme, the foot rest has been installed to the track bottom side to be equipped with lifting module in the foot rest, when factory building ground unevenness, can borrow by adjustment foot rest height, so that each district's section top surface of track is located same level, safety, stability when advancing on the track in order to maintain the platform truck.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a switching track mechanism of a trolley according to the present invention;

FIG. 2 is a schematic view of an installation structure of the trolley according to the embodiment of the present invention;

fig. 3 is a schematic diagram of the embodiment of the present invention in which the linear track is switched to the arc track;

fig. 4 is a schematic view illustrating the arc track is switched to the straight track according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the engagement state of the power transmission rails according to the embodiment of the present invention;

fig. 6 is a schematic view of the engagement state of the support rail according to the embodiment of the present invention;

fig. 7 is a schematic view of the support rail according to the embodiment of the present invention after the support rail is engaged;

wherein:

1. a linear track; 11. a first power rail; 12. a first support rail;

2. an arc-shaped track; 21. a second power rail; 22. a second support rail;

31. a transmission rail switching zone; 32. supporting a rail switching zone;

4. a power rail switch unit; 41. a first base station; 42. a first linear slide rail; 43. a first slider; 44. a first displacement power source; 441. a transmission section; 45. a first power rail joining section; 46. a second power rail joining section;

5. supporting rail switch units; 51. a second base station; 52. a second linear slide rail; 53. a second slide carriage; 54. a second displacement power source; 541. a transmission section; 55. a first support rail joining section;

6. a foot rest; 61. a base; 62. a vertical seat; 63. a lifting assembly; 631. a screw; 632. a nut;

7. a power transmission rail guide wheel group; 71. a power transmission rail fixing seat; 72. a first sliding rail decompression roller;

8. a rail guide wheel group is supported; 81. supporting rail fixing seats; 811. a second slide rail pressure reduction roller; 82. supporting the rail positioning seat; 821. positioning wheels;

9. a trolley; 91. a vehicle body; 92. a wheel; 93. and a conductive wheel.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Referring to fig. 1, for the utility model discloses the structural schematic diagram provides a platform truck switches track mechanism, and it includes two straight line tracks 1 that are parallel to each other and arc track 2, and arc track 2's both ends are connected with two straight line tracks 1 respectively.

The linear track 1 comprises a first power transmission rail 11 and a first support rail 12 which are parallel to each other, the arc track 2 comprises a second power transmission rail 21 and a second support rail 22 which are parallel to each other, a power transmission rail switching area 31 is formed between the first power transmission rail 11 and the second power transmission rail 21 at the joint of the linear track 1 and the arc track 2, a power transmission rail switching unit 4 is arranged in the power transmission rail switching area 31, the track switch unit 4 comprises a first base 41, a first linear guide 42 disposed on the first base 41, a first slider 43 slidably disposed on the first linear guide 42, and a first source of motive force 44 disposed on the first base 41, the transmission portion 441 of the first displacement power source 44 is connected to the first carriage 43, and the first carriage 43 is provided with a first power rail joining section 45 having a linear shape and a second power rail joining section 46 having an arc shape, which are arranged at intervals. In this example, the first displacement power source 44 is a pneumatic cylinder, and the first slider 43 is driven by the first displacement power source 44 to engage or disengage the first power rail engagement section 45 with or from the first power rail movement 11 and to engage or disengage the second power rail engagement section 46 with or from the second power rail 21, thereby completing the switching between the linear track 1 and the curved track 2.

The first support rail 12 of the linear track 1 and the second power transmission rail 21 of the arc track 2 form a crossing, support rail switching areas 5 are respectively formed at both sides of the crossing, and two support rail switching units 5 are provided in the support rail switching areas 32, and the two support rail switching units 5 are respectively located between the second power transmission rail 21 and the second support rail 22, and between the second power transmission rail 21 and the first support rail 12.

The support rail switch unit 5 includes a second base 51, a second linear rail 52 disposed on the second base 52, a second slider 53 slidably disposed on the second linear rail 52, and a second displacement power source 54 disposed on the second base 52, wherein a transmission portion 541 of the second displacement power source 54 is connected to the second slider 53, the second slider 53 is provided with a first support rail engaging section 55, in this example, the second displacement power source 54 employs an air cylinder, the second slider 53 is driven by the second displacement power source 54 to movably engage or disengage the first support rail engaging section 55 with the first support rail 12, and when the linear rail 1 is switched to the arc rail 2, the first support rail engaging section 55 is disengaged from the first support rail 12, so as to avoid interference with a trolley traveling on the arc rail 2.

In order to further optimize the utility model discloses an implement the effect, still be equipped with a plurality of transmission rail guide pulley group 7, transmission rail guide pulley group 7 includes transmission rail fixing base 71, and set up two first slide rail decompression gyro wheels 72 in transmission rail fixing base 71 one side, first transmission rail 11, the bottom that second transmission rail 21 is located the tip of transmission rail switching district 31 is fixed with transmission rail fixing base 71 respectively, the bottom of transmission rail fixing base 71 is equipped with foot rest 6, first slide rail decompression gyro wheel 72 stretches out to in transmission rail switching district 31, so that first transmission rail 11 is located the bottom butt or the separation of the bottom surface butt or the separation of first transmission rail joining section 45 of first transmission rail decompression gyro wheel 72 on the transmission rail fixing base 71 of transmission rail switching district 31 tip bottom, make second transmission rail 21 be located the transmission rail switching district 31 tip bottom of first slide rail decompression gyro wheel 72 on the transmission rail fixing base 71 of transmission rail joining district 46 and the bottom surface butt or the separation of second transmission rail joining section 46 of second transmission rail decompression gyro wheel .

The track switching mechanism for the trolley further comprises a plurality of supporting rail guide wheel groups 8, each supporting rail guide wheel group 8 comprises a supporting rail fixing seat 81 and two second sliding rail decompression rollers 811 arranged on one side of the supporting rail fixing seat 81, the bottoms of the two end portions, located in the supporting rail switching area 32, of the first supporting rail 12 are respectively fixed with the supporting rail fixing seats 81, foot rests 6 are arranged at the bottoms of the supporting rail fixing seats 81, and the second sliding rail decompression rollers 811 protrude to the supporting rail switching area 32 to abut against or separate from the bottom surface of the first supporting rail connecting section 55.

In order to facilitate the positioning of the support rail, the support rail guide wheel set 8 further includes a support rail positioning seat 82 and a positioning wheel 821 arranged on the support rail positioning seat 82, wherein the support rail positioning seats 82 are respectively arranged on the side surfaces of the first support rail 12 located at the two end portions of the support rail switching area 32, and the positioning wheel 821 protrudes to the support rail switching area 32 to abut against or separate from the side surface of the first support rail connecting section 55.

The foot stand comprises a base 61 and a vertical seat 62 arranged on the base 61, wherein the vertical seat 62 is connected with the base 61 through a lifting module so as to adjust the height of the foot stand.

Specifically, the lifting module includes two lifting assemblies 63, and lifting assembly 63 includes screw 631 and two nuts 632 that cooperate with screw 631, and the lower extreme of screw 631 is fixed on base 61, and the upper end of screw 631 is worn to establish on founding seat 62 and is fastened on founding seat 62 through two nuts 632.

The trolley 9 is installed on a goods conveying line composed of a linear track 1 and an arc track 2, wheels 92 and conductive wheels 93 are respectively installed on two sides of a vehicle body 91 of the trolley 9, wherein the wheels 92 are in contact with the upper ends of a first supporting rail 12 and a second supporting rail 32, the conductive wheels 93 are clamped on two sides of the width directions of the first power transmission rail 11 and the second power transmission rail 21, when power transmission lines on the first power transmission rail 11 and the second power transmission rail 21 are in contact with current collection terminals on the conductive wheels 93, power is transmitted to a driving device of the trolley 9 through the current collection terminals, so that the driving device generates power to drive the connected wheels 92, and the trolley 9 runs on the track.

When transporting goods during the peak time of the goods transportation, the arc track 2 is connected with the two parallel linear tracks 1, the plurality of trolleys 9 are made to transport the goods along the main track formed by connecting the arc track 2 and the two linear tracks 1, referring to fig. 3, the control unit drives the first displacement power source 44 of the power transmission rail switch unit 4 in signal connection with the control unit to work, drives the first slider 43 to slide along the first linear slide rail 42, moves the second power transmission rail joint section 46 on the first slider 43 to the corresponding joint position of the second power transmission rail 21 to form the finished arc track 3, and controls the second displacement power source 54 of the support rail switch unit 5 to work, drives the first support rail joint section 55 on the second slider 53 to separate from the first support rail 12, and removes the first support rail section 55 interlaced with the second power transmission rail 12 from the joint position with the arc track 2, so as to avoid the situation that the conductive wheels 93 clamped at the two sides of the second power transmission rail 21 of the arc track 2 collide and interfere with the connecting sections 5 of the two first support rails when the trolley 9 runs along the arc track 2, and the trolley 9 smoothly transports goods along the main line track formed by the two linear tracks 1 and the arc track 2.

When the amount of the transported cargo is decreased during the off-peak time period, and the number of the trolleys on the main track composed of the two linear tracks 1 and the arc-shaped tracks 2 needs to be decreased, referring to fig. 4, the control system sends a working command to the first displacement power source 44 of the power transmission rail switch unit 4 to drive the first slider 43 to move along the first linear slide rail 42, so as to move the first power transmission rail connection section 45 to the connection position corresponding to the first power transmission rail 11, and simultaneously control the second displacement power source 54 to drive the second slider 53 to move along the second linear slide rail 52, so as to move the first support rail connection section 55 to the connection position of the first support rail 12 to compose the complete linear track 1, at this time, the trolley 9 can run along the complete linear track 1, so that the trolley 9 can be driven into the rest station or the maintenance area, etc. to stop or maintain, so as to decrease the number of the trolleys on the main track to the off-peak time period, so as to provide less cargo transportation operation and save the power consumed by the operation of a plurality of vehicles.

When the first displacement power source 44 of the power rail switch unit 4 drives the first power rail connection section 45 of the first slider 43 to connect with the first power rail 11 of the linear track 1, as shown in fig. 5, or drives the second power rail connection section 46 of the first slider 43 to connect with the second power rail 21 of the arc track 2, the first power rail connection section 45 and the second power rail connection section 46 are connected with the first power rail 11 and the second power rail 21 more smoothly when they are connected with the first power rail 11 and the second power rail 21 respectively, and supported by the first rail decompression roller 72 of the power rail guide rail 7, so as to improve the connection between the first power rail connection section 45 and the first power rail 11 and between the second power rail connection section 46 and the first power rail 11, The strength of the support at the junction of the ends of the second power rails 21 increases the stability of the trolley 9 travelling on the track. When the second displacement power source 54 of the support rail switch unit 5 drives the first support rail connecting section 55 assembled on the second slider 53 to connect with the first support rail 12, referring to fig. 6, the second rail pressure-reducing roller 811 of the support rail fixing seat 8 installed on the bottom side of the end of the support rail switching zone 32 of the first support rail 12 guides the first support rail connecting section 55 to smoothly connect with the first support rail 12, and the second rail pressure-reducing roller 811 of the support rail fixing seat 8 supports the first support rail connecting section 88 to improve the supporting strength of the connecting part of the end of the first support rail 12, so that the trolley 9 stably travels on the track, and the positioning wheel 821 of the support rail positioning seat 82 installed on the side of the end of the support rail switching zone 32 of the first support rail 12 is abutted against and positioned on the side of the first support rail connecting section 55, to improve the accuracy of the engagement of the first support rail engagement section 55 with the first support rail 12.

When the ground of the factory building is uneven, referring to fig. 2, the height of the lifting module can be adjusted, the nut 632 on the screw 631 of the lifting module is loosened to adjust the vertical base 62 up and down to a desired height, and then the nut 632 locks the screw 631 on the vertical base 62 to adjust the top surfaces of the first power transmission rail 11, the first support rail 12, the second power transmission rail 21, the second support rail 22, the first power transmission rail connection section 45, the second power transmission rail connection section 46, the first support rail connection section 55, and the like to a same horizontal position, so that the safe and stable operation of the trolley 9 on the track can be ensured.

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. Platform truck switches track mechanism, its characterized in that: the track comprises at least one straight track (1) and an arc track (2), wherein the straight track (1) comprises a first power transmission rail (11) and a first support rail (12) which are parallel to each other, the arc track (2) comprises a second power transmission rail (21) and a second support rail (22) which are parallel to each other, a power transmission rail switching area (31) is formed between the first power transmission rail (11) and the second power transmission rail (21) at the joint of the straight track (1) and the arc track (2), and the power transmission rail switching area (31) is provided with a power transmission rail switching unit (4); the power rail switch unit (4) comprises a first base (41), at least one first linear slide rail (42) arranged on the first base (41), a first sliding base (43) arranged on the first linear slide rail (42) in a sliding way, and a first displacement power source (44) arranged on the first base (41), the first displacement power source (44) is in transmission connection with the first sliding seat (43), the first sliding seat (43) is provided with a first power transmission rail joint section (45) which is arranged at intervals and is linear and a second power transmission rail joint section (46) which is arranged at intervals and is arc-shaped, the first carriage (43) is driven by the first displacement power source (44) to movably engage or disengage the first power rail engagement section (45) with or from the first power rail (11) and to movably engage or disengage the second power rail engagement section (46) with or from the second power rail (21).

2. The trolley switching track mechanism according to claim 1, wherein: the first support rail (12) of the linear track (1) and the second power transmission rail (21) of the arc track (2) form an intersection, a support rail switching zone (32) is formed on at least one side of the intersection, and the support rail switching zone (32) is provided with support rail switching units (5); the support rail switch unit (5) comprises a second base (51), at least one second linear slide rail (52) arranged on the second base (51), a second slide seat (53) arranged on the second linear slide rail (52) in a sliding manner, and a second displacement power source (54) arranged on the second base (51), wherein the second displacement power source (54) is in transmission connection with the second slide seat (53), the second slide seat (53) is provided with a first support rail connecting section (55), and the second slide seat (53) drives the first support rail connecting section (55) to movably connect with or separate from the first support rail (12) under the drive of the second displacement power source (54).

3. The trolley switching track mechanism according to claim 2, wherein: the first displacement power source (44) and the second displacement power source (54) are cylinders.

4. The trolley switching track mechanism according to claim 2, wherein: support rail switch areas (32) are respectively arranged on two sides of the intersection of the first support rail (12) and the second power transmission rail (21), two support rail switch units (5) are respectively arranged in each support rail switch area (32), and the two support rail switch units (5) are respectively positioned between the second power transmission rail (21) and the second support rail (22) and between the second power transmission rail (21) and the first support rail (12).

5. The trolley switching track mechanism according to claim 1, wherein: the trolley switching track mechanism further comprises a plurality of power transmission rail guide wheel groups (7), each power transmission rail guide wheel group (7) comprises a power transmission rail fixing seat (71) and at least one first rail decompression roller (72) arranged on one side of each power transmission rail fixing seat (71), the bottoms of the end parts, located in the power transmission rail switching areas (31), of the first power transmission rail (11) and the second power transmission rail (21) are respectively fixed with the power transmission rail fixing seats (71), foot rests (6) are arranged at the bottoms of the power transmission rail fixing seats (71), the first rail decompression rollers (72) protrude into the power transmission rail switching areas (31) in a protruding mode, so that the first rail decompression rollers (72) on the power transmission rail fixing seats (71), located at the bottom of the end parts of the power transmission rail switching areas (31), of the first power transmission rails (11) are abutted against or separated from the bottom surfaces of the first power transmission rail sections (45), and a first sliding rail decompression roller (72) on a power transmission rail fixing seat (71) which enables the second power transmission rail (21) to be located at the bottom of the end part of the power transmission rail switching area (31) is abutted or separated with the bottom surface of the second power transmission rail connecting section (46).

6. The trolley switching track mechanism according to claim 2, wherein: the track mechanism is switched to platform truck still includes a plurality of support rail guide pulley group (8), support rail guide pulley group (8) are in including support rail fixing base (81) and setting at least one second slide rail decompression gyro wheel (811) of support rail fixing base (81) one side, first support rail (12) are located support rail switching district's (32) both ends bottom is fixed with support rail fixing base (81) respectively, the bottom of support rail fixing base (81) is equipped with foot rest (6), second slide rail decompression gyro wheel (811) protruding extremely support rail switching district (32), with the bottom surface looks butt or the separation of first support rail linking section (55).

7. The trolley switching track mechanism of claim 6 wherein: the support rail guide wheel set (8) further comprises a support rail positioning seat (82) and positioning wheels (821) arranged on the support rail positioning seat (82), the side faces, located at the two end parts of the support rail switching area (32), of the first support rail (12) are respectively provided with the support rail positioning seat (82), and the positioning wheels (821) protrude to the support rail switching area (32) to abut against or separate from the side faces of the first support rail connecting section (55).

8. The trolley switching track mechanism according to claim 5 or 6, wherein: the foot rest (6) comprises a base (61) and a vertical seat (62) arranged on the base (61), wherein the vertical seat (62) is connected with the base (61) through a lifting module.

9. The trolley switching track mechanism of claim 8 wherein: the lifting module comprises at least one lifting component (63), the lifting component comprises a screw (631) and two nuts (632) matched with the screw (631), the lower end of the screw (631) is fixed on the base (61), and the upper end of the screw (631) is locked on the vertical base (62) through the two nuts (632).

10. The trolley switching track mechanism according to claim 1, wherein: the arc-shaped track (2) is located between the two linear tracks (1) which are parallel to each other, and the two ends of the arc-shaped track (2) are connected with the linear tracks (1) at the two ends respectively.