Portable modular unidirectional transport trolley

Abstract

The utility model provides a kind of portable modular one-way transport trolley belongs to linear field area component transport field.Its technical scheme is: including several groups of pedestals, several groups of pedestals are connected into a whole by connecting rod, a pair of lower rib plates is set on pedestal lower side, wheel shaft is set between two side lower rib plates, tire and ratchet are set on the periphery of wheel shaft, limit hole one is set on inner side lower rib plate, limit shaft is set across limit hole one and cooperates with ratchet for use.The utility model has the beneficial effects that: the significance of the present application is that, by modular transport trolley, various sizes and weight of component transport work can be undertaken, the use of hoisting equipment is reduced, the design of one-way wheel can effectively prevent the risk of reversing when climbing uphill, improve transport efficiency, reduce equipment cost and reduce work risk.

Description

Technical Field

[0001] This utility model relates to the field of linear field component transportation, and more particularly to a portable modular unidirectional transport trolley. Background Technology

[0002] Currently, due to the limited space in linear sites, especially in the construction of deep foundation pits for underground roads, the limited space within the site is further hampered by the presence of cross bracing. This makes it difficult to transport materials such as steel formwork and precast components within the foundation pit using cranes, resulting in significant construction difficulties and impacting the construction schedule. Therefore, this solution provides a portable, modular, unidirectional transport trolley. Utility Model Content

[0003] The purpose of this utility model is to provide a portable modular unidirectional transport trolley that is simple to operate and convenient to transport.

[0004] This utility model is achieved through the following measures:

[0005] A portable modular unidirectional transport trolley is characterized by comprising several sets of bases, which are connected as a whole by connecting rods. A pair of lower ribs are provided on the lower side of each base, and an axle is provided between the two lower ribs. A tire and a ratchet are provided around the axle. A limiting hole is provided on the corresponding lower rib, and a limiting shaft that cooperates with the ratchet is provided through the limiting hole. Specifically, the limiting shaft slides along the limiting hole and is engaged in the tooth groove between two adjacent teeth of the ratchet, thereby realizing the unidirectional transport function of the trolley. The connecting rods are made of No. 6 channel steel.

[0006] The specific features of this utility model also include:

[0007] The pedestal is provided with four sets of countersunk holes. Both ends of the connecting rod are provided with round holes that mate with the countersunk holes. Both ends of the connecting rod are respectively connected to the corresponding pedestal by a fixing lock passing through the countersunk holes and the round holes. As one embodiment, the fixing lock is an M20 bolt. After the M20 bolt passes through the corresponding countersunk holes and round holes, a matching nut is provided to lock and fix it.

[0008] The four sets of bases and the four sets of connecting rods form a unit module. The four sets of connecting rods of a unit module are connected to the four sets of bases to form a rectangular structure. Obviously, the four sets of countersunk holes on the base have an arrangement structure that can be connected with multiple unit modules to form a whole.

[0009] The axle is fixed between the corresponding lower ribs on both sides. A pair of bearings are provided around the axle between the lower ribs on both sides. A sleeve is provided around the bearing. The tire and ratchet are provided around the sleeve. Specifically, the bearing is a 52 (outer diameter) × 20 (inner diameter) mm deep groove ball bearing, and its outer ring is welded and fixed to the inner side of both ends of the sleeve.

[0010] The first limiting hole is an elongated hole that mates with the limiting shaft. A limiting clip with an L-shaped plate structure is provided on the corresponding side of the lower rib plate. The limiting clip is provided with a second limiting hole that mates with the first limiting hole. The limiting shaft passes through the second limiting hole and the first limiting hole in sequence and is then positioned in the tooth groove on the ratchet. A hook is provided on the corresponding side of the lower rib plate, and a spring is fixed on the hook. One end of the spring is positioned on the limiting shaft between the limiting clip and the corresponding side of the lower rib plate. When the trolley moves forward, under the action of the ratchet rotation and the spring tension, the limiting shaft slides within the first and second limiting holes and rotates between the tooth grooves of the ratchet. When the trolley moves backward, the limiting shaft will be locked in the tooth groove, thereby preventing the trolley from moving backward.

[0011] Specifically, the limiting card is machined and manufactured by a machine tool with a plate thickness of 2mm. It is welded and fixed to the lower rib plate. Its function is to limit the failure of the limiting shaft to move laterally. This is achieved by three sets of circular pieces set on the limiting shaft.

[0012] The limiting shaft is provided with three sets of circular pieces, which are positioned between the limiting card and the corresponding lower rib plate. The edges of the circular pieces have through holes, through which pull rings are installed. The pull rings are provided with springs. Specifically, the limiting shaft is machined by a machine tool with a shaft diameter of 8mm, the diameter of the three sets of circular pieces is 16mm, and the diameter of the through holes is φ2mm. The limiting shaft passes through the second limiting hole on the limiting card and the first limiting hole on the base. Its function is to lock the gear tooth groove and prevent the trolley from going backward.

[0013] The upper end of the second limiting hole on the limiting card is a large circular hole that mates with the circular piece, and the lower part is a long strip hole that mates with the limiting shaft, which facilitates the installation of the limiting shaft.

[0014] The spring is a φ10mm spring, which is connected to the limiting shaft and the hook through a corresponding pull ring. Its function is to pull the limiting shaft so that it is always in the tooth groove.

[0015] The hook is made of 6mm iron rod bent and welded to the corresponding lower side rib plate, and the spring is fixed by the pull ring;

[0016] The ratchet is made by metal mold casting. The ratchet has a diameter of 10cm and is welded and fixed to the outside of the sleeve. Its function is to provide a reaction force to limit reverse travel.

[0017] The sleeve is made of 60×4mm steel pipe, with a single length of 56mm, and its function is to fix the ratchet, tire and bearing;

[0018] The tire is made of a 16×5 (cm) hard rubber ring, which is fitted onto the sleeve. Its function is to transmit driving force and braking force, as well as to buffer and absorb shock.

[0019] The axle is made with M20 bolts.

[0020] During operation, depending on the size and weight of the components, connecting rods and fixing locks are used to splice them into multi-module trolleys of appropriate size. Lifting equipment is used to lift the components onto the trolleys, and a tractor is used to move the components to the designated position. Finally, the lifting equipment is used to unload the components.

[0021] The beneficial effects of this utility model are as follows: The significance of this invention lies in the fact that, through the modular transport trolley, it can undertake the transport of components of various sizes and weights, reducing the use of hoisting equipment. The one-way wheel design can effectively prevent the risk of backing uphill, thereby improving transport efficiency, reducing equipment costs, and lowering work risks. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a unit module in an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the lower part of a unit module in an embodiment of this utility model.

[0024] Figure 3 This is an exploded view of one unit module in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the installation of components such as the limiting shaft and the circular plate in an embodiment of this utility model.

[0026] The attached diagram is labeled as follows: 1. Base; 2. Sleeve; 3. Ratchet; 4. Bearing; 5. Tire; 6. Axle; 7. Limiting shaft; 8. Limiting clip; 9. Spring; 10. Hook; 11. Connecting rod; 12. Fixing lock. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0031] Example 1

[0032] See Figures 1-4 A portable modular unidirectional transport trolley includes several sets of bases 1, which are connected as a whole by connecting rods 11. A pair of lower ribs are provided on the lower side of the base 1, and an axle 6 is provided between the two lower ribs. A tire 5 and a ratchet 3 are provided around the axle 6. A limit hole 1 is provided on the corresponding lower rib. A limit shaft 7 is provided through the limit hole 1 to cooperate with the ratchet 3. Specifically, the limit shaft 7 slides along the limit hole 1 and is locked in the tooth groove between two adjacent teeth of the ratchet 3, thereby realizing the unidirectional transport function of the trolley. The connecting rod 11 is made of 6# channel steel.

[0033] The base 1 is provided with four sets of countersunk holes. Both ends of the connecting rod 11 are provided with round holes that mate with the countersunk holes. Both ends of the connecting rod 11 are connected to the corresponding base 1 by fixing locks 12 that pass through the countersunk holes and round holes respectively. As an example, the fixing lock 12 is an M20 bolt. After the M20 bolt passes through the corresponding countersunk holes and round holes, a matching nut is provided to lock and fix it.

[0034] Four sets of bases 1 and four sets of connecting rods 11 form a unit module. The four sets of connecting rods 11 of a unit module are connected to the four sets of bases 1 to form a rectangular structure. Obviously, the four sets of countersunk holes on the bases 1 have an arrangement structure that can be connected with multiple unit modules to form a whole.

[0035] The axle 6 is fixed between the corresponding lower ribs on both sides. A pair of bearings 4 are provided around the axle 6 between the lower ribs on both sides. A sleeve 2 is provided around the bearing 4. A tire 5 and a ratchet 3 are provided around the sleeve 2. Specifically, the bearing 4 is a 52 (outer diameter) × 20 (inner diameter) mm deep groove ball bearing 4, and its outer ring is welded and fixed to the inner side of both ends of the sleeve 2.

[0036] The first limiting hole is an elongated hole that mates with the limiting shaft 7. The corresponding lower side rib is provided with an L-shaped plate structure limiting clip 8. The limiting clip 8 is provided with a second limiting hole that mates with the first limiting hole. The limiting shaft 7 passes through the second limiting hole and the first limiting hole in sequence and is set in the tooth groove on the ratchet 3. The corresponding lower side rib is provided with a hook 10. A spring 9 is fixed on the hook 10. One end of the spring 9 is set on the limiting shaft 7 between the limiting clip 8 and the corresponding lower side rib. When the trolley moves forward, under the action of the ratchet 3 rotating and the spring 9 pulling, the limiting shaft 7 slides in the first and second limiting holes and rotates between the tooth grooves of the ratchet 3. When the trolley moves backward, the limiting shaft 7 will be locked in the tooth groove, thereby preventing the trolley from moving backward.

[0037] Specifically, the limit card 8 is machined and manufactured with a plate thickness of 2mm. It is welded and fixed to the lower rib plate. Its function is to limit the lateral displacement failure of the limit shaft 7. This is achieved by three sets of circular pieces set on the limit shaft 7.

[0038] The limiting shaft 7 is equipped with three sets of circular plates, which are positioned between the limiting card 8 and the corresponding lower side ribs. The edges of the circular plates have through holes, through which pull rings are installed. Springs 9 are installed on the pull rings. Specifically, the limiting shaft 7 is machined by a machine tool with a shaft diameter of 8mm, the diameter of the three sets of circular plates is 16mm, and the diameter of the through holes is φ2mm. The limiting shaft 7 passes through the second limiting hole on the limiting card 8 and the first limiting hole on the base 1. Its function is to lock the gear tooth groove and prevent the trolley from going backward.

[0039] The upper end of the second limiting hole on the limiting card 8 is a large round hole that mates with the round piece, and the lower part is a long strip hole that mates with the limiting shaft 7. This facilitates the installation of the limiting shaft.

[0040] Spring 9 is a φ10mm spring, which is connected to the limiting shaft 7 and the hook 10 through a corresponding pull ring. Its function is to pull the limiting shaft 7 so that it is always in the tooth groove.

[0041] The hook 10 is made of 6mm iron rod bent and welded to the corresponding lower side rib plate, and the spring 9 is fixed by the pull ring;

[0042] Ratchet 3 is made using a metal mold casting method. Ratchet 3 has a diameter of 10cm and is welded and fixed to the outside of sleeve 2. Its function is to provide a reaction force to limit reverse travel.

[0043] Sleeve 2 is made of 60×4mm steel pipe with a single length of 56mm. Its function is to fix ratchet 3, tire 5 and bearing 4.

[0044] Tire 5 is made of 16×5 (cm) hard rubber ring and is sleeved on sleeve 2. Its function is to transmit driving force and braking force, buffer and dampen shock.

[0045] The wheel axle 6 is made with M20 bolts.

[0046] During operation, depending on the size and weight of the components, connecting rods 11 and fixing locks 12 are used to splice together to form a multi-module trolley of appropriate size. The components are hoisted onto the trolley using hoisting equipment, moved to the designated position by a tractor, and then unloaded by hoisting equipment.

[0047] Example 2

[0048] A municipal tunnel culvert project has a foundation pit with a width of 19.6m, a depth of 12m, and a slope of 5%. Two supports are installed inside the pit, with a spacing of 3.5m between them. Construction work is underway on the tunnel sidewalls within the foundation pit, using steel formwork with a width of 3m.

[0049] Assemble the base 1, sleeve 2, gear, bearing 4, tire 5, axle 6, limit shaft 7, limit clip 8, spring 9, and hook 10 to form a modular trolley. Based on the template dimensions, use connecting rods 11 and fixing locks 12 to connect and form two 4×2 trolleys, one at the front and one at the back of the template. Use a gantry crane to hoist the template onto the trolley, and then use a tractor to move the components up a 5% incline to the designated position. Finally, use the gantry crane to unload the components and install them using a component unloading machine.

[0050] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A portable modular unidirectional transport trolley, characterized in that, It includes several sets of bases (1), which are connected as a whole by connecting rods (11). A pair of lower ribs are provided on the lower side of the base (1), and a wheel axle (6) is provided between the two lower ribs. A tire (5) and a ratchet (3) are provided around the wheel axle (6). A limit hole is provided on the corresponding side of the lower rib, and a limit shaft (7) is provided through the limit hole to cooperate with the ratchet (3).

2. The portable modular unidirectional transport trolley according to claim 1, characterized in that, The base (1) is provided with four sets of countersunk holes. Both ends of the connecting rod (11) are provided with round holes that cooperate with the countersunk holes. Both ends of the connecting rod (11) are respectively connected to the corresponding base (1) by fixing locks (12) that pass through the countersunk holes and the round holes.

3. The portable modular unidirectional transport trolley according to claim 2, characterized in that, The four sets of the pedestals (1) and the four sets of the connecting rods (11) form a unit module. The four sets of the connecting rods (11) of one unit module are connected to the four sets of the pedestals (1) to form a rectangular structure.

4. The portable modular unidirectional transport trolley according to claim 1, characterized in that, The axle (6) is fixed between the corresponding lower ribs on both sides. A pair of bearings (4) are provided around the axle (6) between the lower ribs on both sides. A sleeve (2) is provided around the bearing (4). The tire (5) and the ratchet (3) are provided around the sleeve (2).

5. The portable modular unidirectional transport trolley according to claim 4, characterized in that, The first limiting hole is an elongated hole that mates with the limiting shaft (7). A limiting clip (8) with an L-shaped plate structure is provided on the corresponding side of the lower rib plate. The limiting clip (8) is provided with a second limiting hole that mates with the first limiting hole. The limiting shaft (7) passes through the second limiting hole and the first limiting hole in sequence and is then placed in the tooth groove on the ratchet (3). A hook (10) is provided on the corresponding side of the lower rib plate. A spring (9) is fixed on the hook (10). One end of the spring (9) is placed on the limiting shaft (7) between the limiting clip (8) and the corresponding side of the lower rib plate.

6. The portable modular unidirectional transport trolley according to claim 5, characterized in that, The limiting shaft (7) is provided with three sets of circular pieces. The three sets of circular pieces are arranged between the limiting card (8) and the corresponding side lower rib plate. The edge of the circular piece has a through hole, and a pull ring is provided through the through hole. The pull ring is provided with the spring (9).

7. The portable modular unidirectional transport trolley according to claim 5, characterized in that, The spring (9) is a φ10mm spring, which is connected to the limiting shaft (7) and the hook (10) through a corresponding pull ring.

8. The portable modular unidirectional transport trolley according to claim 5, characterized in that, The hook (10) is made of 6mm iron rod bent and welded to the corresponding side lower rib plate.

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