Cage trolley trailer

Abstract

According to the cage trolley trailer, the solution that in-field transfer is achieved by connecting the active trailers in series and dragging the unpowered trailers is provided in a targeted mode, and the coincidence of the turning radius of the trailers connected in series front and back is expected to be achieved on the premise that the trailers smoothly pass through a small-radius turning channel. The cage trolley trailer comprises a base with front wheels, a manual hydraulic jacking system is connected to the base, and a same-track turning system and a clamping plate system are borne on the manual hydraulic jacking system. The manual hydraulic jacking system comprises a pallet fork, and a manual hydraulic jacking device with an operating handle is connected between the pallet fork and the vertical direction of the base; the top end of the first crank is hinged to the pallet fork, and the two ends are hinged to the mounting base and one end of the crank connecting rod respectively. The other end of the crank connecting rod is hinged to one end of a second crank, the other end of the second crank is connected to a rear wheel assembly 30 through a follow-up bearing 26, and the top end of the second crank is hinged to the pallet fork.

Description

Technical Field

[0001] The utility model relates to a trailer used for cage truck transfer operations, belonging to the field of logistics and intelligent warehousing. Background Art

[0002] In intelligent logistics transfer yards and three-dimensional warehousing systems, cage trucks are usually used for containerization and transportation to cope with bulk packages of different shapes and sizes, so as to complete automatic loading and unloading and conveying operations between the storage area and the sorting area.

[0003] At present, when cage trucks are transferred to other sites, it is more common to use manually operated forklifts for insertion and transportation. This not only has low transportation efficiency but also cannot be used for long-distance transportation.

[0004] Another example is the following prior patent application, application number CN202320502628.6, named a U-shaped vehicle for cage car transfer. The application scheme discloses a U-shaped vehicle body, a bottom support plate is provided at the bottom of the U-shaped vehicle body, two sets of shock-absorbing casters symmetrically distributed on the left and right are provided at the bottom of the U-shaped vehicle body, a baffle mechanism is provided on the U-shaped vehicle body, and a same-track transmission mechanism is provided on the top of the U-shaped vehicle body. For the U-shaped vehicle used for cage car transfer, the staff opens the left and right baffles on the U-shaped vehicle body, then pushes the cage car into the U-shaped vehicle body, and then closes the left and right baffles that were opened before, and then moves the front and rear baffles to the appropriate position according to the width of the cage car, inserts the knob pin into the limit hole, locks the position of the front and rear baffles, and pulls out and fixes the pull-out warning tape, and then presses the rising button on the control button box to make the bottom support plate drive the cage car to lift. If the cage car needs to be pushed out of the U-shaped vehicle, the operation is reversed.

[0005] The above-mentioned prior art has the following disadvantages: a set of elevated connecting rod mechanisms is used to ensure the consistency of the trajectory of each transfer vehicle when turning, which requires the overall height and weight of the vehicle body to be significantly increased, and is not conducive to the maintenance of related components; the overall mechanism is complex, the number of components is large, and the failure rate is high, which further increases the total weight of the vehicle; the connection mechanism between two adjacent groups of vehicle bodies results in a large turning radius, which is not conducive to the transportation safety of large-sized cage vehicles.

[0006] In view of this, this patent application is proposed. Utility Model Content

[0007] The cage trailer described in the utility model aims to solve the problems existing in the above-mentioned prior art and specifically proposes a solution of realizing on-site transportation by connecting an active trailer in series to tow an unpowered trailer, so as to achieve consistency in the turning radius of the front and rear series-connected trailers while smoothly passing through a small-radius turning channel, thereby achieving the purpose of optimizing the lifting of manual forks and ensuring transportation safety.

[0008] In order to achieve the above-mentioned design purpose, the cage trailer includes a base with a front wheel, a manual hydraulic jacking system is connected to the base, and a same-track turning system and a clamping plate system are carried on the manual hydraulic jacking system; the manual hydraulic jacking system includes a fork, and a manual hydraulic jacking device with an operating handle is connected between the fork and the base vertically; the top end of the first crank is hinged to the fork, and its two ends are respectively hinged to the mounting seat and one end of the crank connecting rod; the other end of the crank connecting rod is hinged to one end of the second crank, and the other end of the second crank is connected to the rear wheel assembly 30 through a follower bearing 26, and its top end is hinged to the fork; the same-track turning system includes a front and rear vehicle steering connecting rod installed at the front end of the base, and the two ends of the two sets of connecting rods are respectively hinged to the front wheel and the front and rear vehicle steering connecting rods.

[0009] Furthermore, the base includes a base, a mounting seat is installed at the front end of the base, two sets of front wheels are arranged at the bottom of the base, two sets of cage car entry and exit guide plates are symmetrically connected to the rear of the base, and a fork lifting guide plate for providing fork lifting guidance is installed at the vertical top of each set of cage car entry and exit guide plates.

[0010] Furthermore, the rear wheel assembly includes an upper mounting plate for connecting to the bottom of the fork, and the upper mounting plate is vertically connected to the lower mounting plate through an upper and lower plate cross-hinged rod assembly; the upper and lower plate cross-hinged rod assembly is arranged on both sides of the rear wheel assembly, and it consists of two connecting rods to form a cross-shaped connection structure; follower bearings are pressed on the upper surfaces of both sides of the lower mounting plate; the rear wheel is assembled on the rear wheel steering rod, and the top of the rear wheel steering rod is connected to the bottom center of the lower mounting plate through a rear wheel rotating bearing, and a hinge hole for hingedly connecting the same track turning system is provided on the rear wheel steering rod.

[0011] Furthermore, the rear wheel is composed of two wheels connected front and rear by a connecting plate, and the connecting plate is fixedly mounted on the rear wheel steering link.

[0012] Furthermore, while the front and rear vehicle steering links are hinged to the front vehicle link, the front and rear ends of the front and rear wheel links 34 are hinged to the front and rear vehicle steering links and the rear wheel steering links respectively.

[0013] Furthermore, the clamping plate system includes a vertically arranged mounting frame for mounting and connecting the forks, and lifting side guide wheel assemblies are arranged on both sides of the mounting frame, and two groups of clamping plate assemblies are driven by the clamping plate driving system assembly to reciprocate along the clamping plate movable guide rails arranged in the horizontal direction; the lifting side guide wheel assembly is laterally contacted and squeezed in the guide groove of the fork lifting guide plate.

[0014] Furthermore, the clamping plate drive system component includes a mounting plate for connecting to a mounting frame, on the mounting plate axis are provided a clamping handwheel, a driven sprocket, a driving sprocket, a tensioning wheel, and an idler wheel, a group of chains are connected in a closed loop between the clamping handwheel and the driven sprocket; the driven sprocket and the driving sprocket are coaxially connected along both sides of the mounting plate, the torque transmitted by the driven sprocket is transmitted to the driving sprocket, and another group of chains are connected in a closed loop between the driving sprocket, the tensioning wheel and the idler wheel.

[0015] Furthermore, an anti-reversal ratchet for sequentially inserting and buckling into each chain grid on the chain is installed on one side of the clamping hand wheel.

[0016] Furthermore, the clamping plate assembly includes two groups of clamping plates distributed in the horizontal direction through the clamping plate connection and used to clamp the cage car, and a chain connecting seat is connected between the two groups of clamping plates, and the chain connecting seat is fixedly connected in series in the chain; at one end of the clamping plate, a guide wheel mounting plate is connected through a connecting plate bent at 90°, and an array of guide wheels is provided on the guide wheel mounting plate through a follower bearing shaft, and the guide wheels are contacted and squeezed in the guide groove of the movable guide rail of the clamping plate.

[0017] Furthermore, the tail of the cargo fork of the front cage trailer is connected to the front and rear vehicle steering connecting rods of the rear cage trailer via a ball head connecting rod.

[0018] In summary, the cage trailer proposed in this application has the following advantages and beneficial effects:

[0019] 1. By applying this application, one AGV can tow multiple groups of series-connected unpowered trailers, that is, the unpowered trailers can be towed by active trailers to realize the on-site transportation of folding cages or full cages. It is suitable for long-distance and space-constrained transportation solutions, and has the characteristics of low cost and strong adaptability.

[0020] 2. The application adopts a modular and miniaturized design as a whole, with a relatively compact structure and good flexibility in the transportation process.

[0021] 3. This application adopts manual hydraulic cage car lifting operation to realize the pure mechanical use of the trailer without electricity, and combines the manual hydraulic jacking mechanism with the same track mechanism to further improve the design performance and use effect of the same track of the front and rear vehicles.

[0022] 4. The trailer can transport not only fully loaded cage trucks, but also multiple folding cage trucks, which significantly improves its applicability.

[0023] 5. The same track turning system is arranged at the bottom of the base and the manual hydraulic jacking system. It is not only relatively hidden but also significantly reduces the height and weight of the trailer, and is conducive to the maintenance of the main parts of the equipment, and meets the lightweight design requirements to the maximum extent without reducing the performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application will now be further described with reference to the following drawings;

[0025] Figure 1 is a schematic diagram of the cage trailer described in the present application;

[0026] Figure 2 is a schematic diagram of the base assembly;

[0027] Figure 3 It is a schematic diagram of the manual hydraulic jacking system;

[0028] Figure 4 It is a schematic diagram of the same-trajectory turning system;

[0029] Figure 5 is a schematic diagram of the rear wheel assembly;

[0030] Figure 6 is a schematic diagram of the splint system;

[0031] Figure 7 is a schematic diagram of the components of the splint drive system;

[0032] Figure 8 is a schematic diagram of the splint assembly;

[0033] Fig. 9 This is a schematic diagram of the front and rear cage cars connected in series; DETAILED DESCRIPTION

[0034] Embodiment 1, the present application proposes a cage car trailer, which does not have its own transport power, and can be driven by an AGV trolley with main power to form a cage car transport fleet of multiple groups of trailers, so that the AGV trolley actively tows the first group of trailers, and then the first group of trailers drives the subsequent series-connected multiple groups of trailers with the same structure to implement the on-site transfer operation of empty folding cage cars or fully loaded cage cars.

[0035] like Figure 1 As shown, the cage trailer comprises a base 1 with front wheels 14 , a manual hydraulic jacking system 2 is connected to the base 1 , and a same-track turning system 3 and a clamping plate system 4 are carried on the manual hydraulic jacking system 2 .

[0036] like Figure 2As shown, the base 1 includes a base 11, which is the basic installation component of the entire cage trailer; a mounting base 10 specially connected to the manual hydraulic jacking system 2 is installed at the front end of the base 11; two groups of front wheels 14 are arranged at the bottom of the base 11, and the front wheels 14 provide front support for the cage trailer; two groups of cage car inlet and outlet guide plates 12 are symmetrically connected to the rear of the base 11, and the cage car inlet and outlet guide plates 12 provide linear movement guides in the horizontal direction for the cage car inlet and outlet trailer, so as to facilitate the manual insertion and removal of the cage car; a fork lifting guide plate 13 for providing fork lifting guide is installed at the vertical top of each group of cage car inlet and outlet guide plates 12, and the fork lifting guide plate 13 provides vertical movement guide for the fork lifting to prevent the fork from tilting due to unstable center of gravity.

[0037] like Figure 3 As shown, the manual hydraulic lifting system 2 includes a fork 22, which is a ground bull used in the prior art. A manual hydraulic lifter 21 with an operating handle is connected between the fork 22 and the mounting seat 10 of the base 1 in the vertical direction. The fork 22 is used as a cargo platform to connect the manual hydraulic lifter 21 and the first crank 23 to the second crank 24. The lifting end of the manual hydraulic lifter 21 is lifted at the front end of the fork 22.

[0038] The top end of the first crank 23 is hinged to the fork 22 (middle hinge point), and its two ends are respectively hinged to the mounting seat 10 (long side hinge point) and one end of the crank connecting rod 25 (short side hinge point); the other end of the crank connecting rod 25 is hinged to one end of the second crank 24, and the crank connecting rod 25 is used to connect the first crank 23 and the second crank 24 to transmit the power from the manual hydraulic jacking device 21 to the rear wheel assembly 30; the other end of the second crank 24 is connected to the rear wheel assembly 30 (long side hinge point) through a follower bearing 26, and its top end is hinged to the fork 22 (middle hinge point). The power from the manual hydraulic jacking device 21 can be applied to the rear wheel assembly 30 through the follower bearing 26, so as to realize the autonomous operation transmission of the fork 22 while also cooperating with the following same-track turning system 3 to realize the same-track turning operation of the fork 22 itself.

[0039] like Figure 5 As shown, the rear wheel assembly 30 includes an upper mounting plate 35 for connecting to the bottom of the fork 22, and the upper mounting plate 35 is vertically connected to the lower mounting plate 36 through an upper and lower plate cross hinge link assembly 37;

[0040] The upper and lower plate cross hinge link assembly 37 is arranged on both sides of the rear wheel assembly 30, and it is composed of two connecting rods to form a cross-shaped connection structure to ensure that the upper and lower mounting plates are connected while maintaining the relative vertical displacement between the two;

[0041] The follower bearings 26 are press-fitted on the upper surfaces of both sides of the lower mounting plate 36, thereby providing the rear end of the fork 22 with power to rise or fall;

[0042] The rear wheel 300 is assembled on the rear wheel steering link 39. The top of the rear wheel steering link 39 is connected to the bottom center of the lower mounting plate 36 through the rear wheel rotation bearing 38. The rear wheel rotation bearing 38 can maintain the horizontal rotation freedom of the rear wheel 300. A hinge hole for articulating the same track turning system 3 (front and rear wheel links 34) is provided on the rear wheel steering link 39.

[0043] Through the above structural design, the power from the front wheel 14 is transmitted to the rear wheel 300 by the first crank 23, the crank connecting rod 25 and the second crank 24, and the front wheel 14 can drive the rear wheel 300 to run synchronously when walking or turning;

[0044] Furthermore, the rear wheel 300 is composed of two wheels connected front and rear by a connecting plate, and the connecting plate is fixedly mounted on the rear wheel steering link 39. When the two wheels travel on uneven ground, they can rotate around the center point of the connecting plate, thereby ensuring that at least one wheel touches the ground.

[0045] like Figure 4 As shown, the same-track turning system 3 includes a front and rear vehicle steering link 31 mounted on the front end of the mounting seat 10, and the front and rear vehicle steering link 31 is hinged to the front vehicle link to connect another trailer located in the front at the front of the trailer;

[0046] The two ends of the two sets of connecting rods 33 are respectively hinged to the two sets of front wheels 14 and the front and rear vehicle steering connecting rods 31 on both sides. When the front trailer turns, the front and rear vehicle steering connecting rods 31 sequentially drive the connecting rods 33 and the front wheels 14 to turn synchronously.

[0047] The front and rear ends of the front and rear wheel links 34 are respectively hinged to the front and rear vehicle steering links 31 and the rear wheel steering links 39, so that the front wheels and the rear wheels form a transmission connection assembly, and when the front wheels 14 turn, the rear wheels 300 can be driven to turn synchronously, that is, the front and rear wheels can turn in the same track easily, quickly and accurately.

[0048] like Figure 6 As shown, the clamping plate system 4 includes a vertically arranged mounting frame 41 for mounting and connecting the fork 22, and a lifting side guide wheel assembly 42 is arranged on both sides of the mounting frame 41, and two groups of clamping plate assemblies 46 driven by a clamping plate driving system assembly 47 to reciprocate along a clamping plate movable guide rail 45 arranged in a horizontal direction;

[0049] The lifting side guide wheel assembly 42 is laterally contacted and pressed into the guide groove of the fork lifting guide plate 13 to prevent the fork 22 from tilting due to an unstable center of gravity during the lifting process;

[0050] like Figure 7As shown, the clamping plate drive system assembly 47 includes a mounting plate 476 for connecting to the mounting frame 41, and a clamping handwheel 43, a driven sprocket 44, a driving sprocket 477, a tensioning wheel 478, and an idler wheel 479 are arranged on the mounting plate 476. A set of chains are connected and run in a closed loop between the clamping handwheel 43 and the driven sprocket 44. The clamping handwheel 43 is manually operated, and the torque is transmitted to the driven sprocket 44 through the shorter set of chains. An anti-reverse ratchet 472 is installed on one side for sequentially inserting and buckling into each chain grid on the chain to ensure that the chain is prevented from loosening or running in reverse during the rotation of the clamping hand wheel 43, so that the clamping plate assembly 46 can maintain the state of clamping the cage car; even if the clamping hand wheel 43 stops rotating and the anti-reverse ratchet 472 is closed, the clamping force of the clamping plate assembly 46 can still be maintained; when the anti-reverse ratchet 472 is opened, the clamping hand wheel 43 can be rotated normally to loosen the clamping plate assembly 46;

[0051] The driven sprocket 44 and the driving sprocket 477 are coaxially connected along both sides of the mounting plate 476. The torque transmitted by the driven sprocket 44 is transmitted to the driving sprocket 477. Another set of chains 471 is connected and operated in a closed loop between the driving sprocket 477, the tensioning wheel 478 and the idler wheel 479.

[0052] like Figure 8 As shown, the clamping plate assembly 46 includes two groups of clamping plates 466 distributed in the horizontal direction through the clamping plate connection 467 for clamping the cage car, and a chain connecting seat 462 is connected between the two groups of clamping plates 466. The chain connecting seat 462 is fixedly connected in series with the chain 471. When the clamping hand wheel 43 drives the chain 471 to run, the two groups of clamping plates 466 are driven to move in the linear direction through the chain connecting seat 462 to clamp or release the cage car;

[0053] At one end of the clamping plate 466, a connecting plate 465 is bent 90 degrees to connect to the guide wheel mounting plate 463, and an array of guide wheels 464 are provided on the guide wheel mounting plate 463 through a follower bearing shaft. The guide wheels 464 are in contact with and squeezed in the guide groove of the clamping plate movable guide rail 45.

[0054] like Fig. 9 As shown, the cage trailer proposed in the present application is an unpowered driven device, which is manually operated by a manual hydraulic jack 21 to raise and lower the fork 22 to load and unload the cage trailer; the tail of the fork 22 of the cage trailer located in the front and the front and rear vehicle steering connecting rods 31 of the cage trailer located in the rear are quickly connected through a ball head connecting rod 27, thereby completing the rapid disassembly between two adjacent groups of cage trailers and between the towing AGV trolley and the cage trailer.

[0055] By using this application, one AGV can simultaneously tow multiple groups of series-connected unpowered cage trailers to flexibly complete transportation operations.

[0056] The above contents and the embodiments given in the accompanying drawings are only preferred solutions for achieving the purpose of the utility model. For those skilled in the art, they can be inspired by this and directly deduce other alternative structures that conform to the design concept of the utility model. Other structural features obtained thereby should also belong to the scope of the solution described in the utility model.

Claims

1. A cage trailer, characterized by: It includes a base with front wheels, a manual hydraulic jacking system is connected to the base, and a same-track turning system and a clamping plate system are carried on the manual hydraulic jacking system; The manual hydraulic lifting system comprises a fork, and a manual hydraulic lifter with an operating handle is connected between the fork and the base in the vertical direction; the top end of the first crank is hinged to the fork, and the two ends thereof are respectively hinged to the mounting seat and one end of the crank connecting rod; the other end of the crank connecting rod is hinged to one end of the second crank, and the other end of the second crank is connected to the rear wheel assembly through a follower bearing, and the top end thereof is hinged to the fork; The same-track turning system comprises front and rear vehicle steering links installed at the front end of the base, and the two ends of the two sets of links are respectively hinged to the front wheels and the front and rear vehicle steering links.

2. The cage trailer according to claim 1, characterized in that: The base includes a base, a mounting seat is installed at the front end of the base, two sets of front wheels are arranged at the bottom of the base, two sets of cage car entry and exit guide plates are symmetrically connected to the rear of the base, and a fork lifting guide plate for providing fork lifting guidance is installed at the vertical top of each set of cage car entry and exit guide plates.

3. The cage trailer according to claim 1, characterized in that: The rear wheel assembly includes an upper mounting plate for connecting to the bottom of the fork, and the upper mounting plate is vertically connected to the lower mounting plate through an upper and lower plate cross hinge link assembly; The upper and lower plate cross hinge link assembly is arranged on both sides of the rear wheel assembly, and is composed of two connecting rods forming a cross connection structure; Follower bearings are press-fitted on the upper surfaces of both sides of the lower mounting plate; The rear wheel is assembled on the rear wheel steering link, the top of the rear wheel steering link is connected to the bottom center of the lower mounting plate through the rear wheel rotary bearing, and a hinge hole for articulating the same track turning system is arranged on the rear wheel steering link.

4. The cage trailer according to claim 3, characterized in that: The rear wheel is composed of two wheels connected front and rear by a connecting plate, and the connecting plate is fixedly mounted on the rear wheel steering link.

5. The cage trailer according to claim 1, characterized in that: While the front and rear vehicle steering links are hinged to the front vehicle link, the front and rear ends of the front and rear wheel links are respectively hinged to the front and rear vehicle steering links and the rear wheel steering links.

6. The cage trailer according to claim 1, characterized in that: The clamping plate system comprises a vertically arranged mounting frame for mounting and connecting the forks, and lifting side guide wheel assemblies are arranged on both sides of the mounting frame, and two groups of clamping plate assemblies are driven by the clamping plate driving system assembly to reciprocate along the clamping plate movable guide rails arranged in the horizontal direction; the lifting side guide wheel assembly is laterally contacted and squeezed in the guide groove of the fork lifting guide plate.

7. The cage trailer according to claim 6, characterized in that: The clamping plate driving system assembly includes a mounting plate for connecting the mounting frame, a clamping hand wheel, a driven sprocket, a driving sprocket, a tensioning wheel, and an idler wheel are arranged on the mounting plate, and a set of chains are connected and run in a closed loop between the clamping hand wheel and the driven sprocket; The driven sprocket and the driving sprocket are coaxially connected along both sides of the mounting plate, and the torque transmitted by the driven sprocket is transmitted to the driving sprocket. Another set of chains is connected and operated in a closed loop between the driving sprocket, the tensioning wheel and the idler wheel.

8. The cage trailer according to claim 7, characterized in that: An anti-reversal ratchet wheel for sequentially inserting and buckling into each chain grid on the chain is installed on one side of the clamping hand wheel.

9. The cage trailer according to claim 6, characterized in that: The clamping plate assembly comprises two groups of clamping plates distributed in the horizontal direction and used for clamping the cage car, and a chain connecting seat is connected between the two groups of clamping plates, and the chain connecting seat is fixedly connected in series in the chain; At one end of the clamping plate, a connecting plate is bent at 90 degrees to connect to the guide wheel mounting plate, and a plurality of guide wheels are arranged on the guide wheel mounting plate through a follower bearing shaft, and the guide wheels are contacted and squeezed in the guide groove of the movable guide rail of the clamping plate.

10. The cage trailer according to claim 1, characterized in that: The tail of the fork of the cage trailer located in the front is connected to the front and rear vehicle steering links of the cage trailer located in the rear through a ball head connecting rod.

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