A logistics conveying trolley

Abstract

This utility model discloses a logistics conveying trolley, relating to the field of logistics conveying technology. It includes a frame with a base plate fixedly installed at the bottom. A lifting mechanism is fixedly installed on the top side of the base plate. The lifting mechanism includes a support rod fixedly connected to the top of the base plate. A swing plate is rotatably installed on the bottom side wall of the support rod. A follower rod is fixedly installed at the center of the side wall of the swing plate. A locking plate is rotatably installed on the top of the follower rod. A gear plate is engaged with the side wall of the locking plate. In this utility model, the locking plate in the lifting mechanism, through the engagement of the lower and upper blocks with the gear plate, can engage with the gear plate's tooth groove when the external force suddenly disappears due to worker negligence, preventing the gear plate from reversing and thus locking the partition position. This effectively avoids the situation mentioned in the background art where layered partitions and items fall rapidly due to loss of control, greatly reducing the risk of item damage and personnel injury.

Description

Technical Field

[0001] This utility model relates to the field of logistics transportation technology, specifically a logistics transportation trolley. Background Technology

[0002] In modern logistics warehousing, manufacturing, and commercial distribution, logistics conveyor trolleys, as a convenient and efficient cargo transfer device, are widely used in various scenarios. They can effectively improve cargo handling efficiency, reduce the labor intensity of manual handling, and provide important support for the smooth operation of logistics.

[0003] To meet the storage needs of goods of different heights, these tiered partitions are usually designed as adjustable structures. Workers can change the height of each storage area by adjusting the installation position of the tiered partitions on the trolley according to the actual height of the goods.

[0004] When adjusting the height of the partitions on existing logistics conveyor trolleys, it is necessary to first loosen the fixed structure between the partitions and the trolley body to make the partitions movable. During this adjustment process, if the worker loses effective control of the partitions due to negligence, the partitions and the items placed on them will fall rapidly under the influence of gravity. This rapid fall may not only cause damage to the items due to violent impact, resulting in economic losses, but may also cause personal injury to the workers operating below, seriously threatening the personal safety of the workers.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this utility model is to provide a logistics conveying trolley to solve the problems mentioned in the background art.

[0007] To solve the above technical problems, this utility model provides a logistics conveying trolley, including a frame, a base plate fixedly installed at the bottom of the frame, and a lifting mechanism fixedly installed at the top side of the base plate; The lifting mechanism includes a support rod fixedly connected to the top of the base plate. A swing plate is rotatably mounted on the bottom side wall of the support rod. A follower rod is fixedly mounted at the center of the side wall of the swing plate. A locking plate is rotatably mounted on the top of the follower rod. A gear plate is meshed with the side wall of the locking plate. A support plate is fixedly mounted on the side wall of the gear plate. A slider is rotatably mounted on the side end of the support plate. A partition is slidably mounted on the outer wall of the slider.

[0008] Furthermore, the partition includes a support plate, a groove is provided on one side of the support plate, the inner wall of the groove is slidably connected to the outer wall of the slider, guide blocks are fixedly installed on both sides of the support plate away from the groove, a guide groove is provided on the inner side wall of the frame, and the inner wall of the guide groove is slidably connected to the outer wall of the guide block.

[0009] Furthermore, each of the four corners of the bottom of the base plate is equipped with a caster wheel, the outer wall of which is made of rubber. The frame has a U-shaped structure, providing installation space for the partition and lifting mechanism.

[0010] Furthermore, a lower top block and an upper top block are fixedly installed at both ends of the side wall of the locking plate, and the lower top block and the upper top block can reciprocate into the tooth groove of the gear plate. A connecting groove is provided on the locking plate, and the top of the follower rod is rotatably installed in the connecting groove. The bottom of the lower top block and the upper top block are both arc-shaped. The lower top block and the upper top block drive the gear plate to rotate by reciprocating into the tooth groove of the gear plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The locking plate in the lifting mechanism, through the engagement of the lower top block, the upper top block and the gear plate, can lock into the gear plate groove when the external force suddenly disappears due to the worker's negligence, preventing the gear plate from reversing, thereby locking the position of the partition. This effectively avoids the situation mentioned in the background technology where the layered partition and the items fall rapidly due to loss of control, and greatly reduces the risk of damage to items and injury to personnel. The manual swing plate moves the locking plate via the follower rod, causing the lower and upper top blocks to alternately drive the gear plate to rotate. The rotation of the gear plate drives the support plate and the slider to move. The slider slides in the groove of the partition, while the partition slides vertically along the guide groove of the frame via the guide block. The whole process is smooth and stable, which improves the convenience and reliability of the adjustment operation compared to the instability of the existing trolley adjustment. Attached Figure Description

[0012] Figure 1 This is a front view of a logistics conveying trolley. Figure 2 This is a schematic diagram of the connection structure between the partition and the lifting mechanism of a logistics conveying trolley. Figure 3 A schematic diagram of the side structure of the locking plate of a logistics conveying trolley; Figure 4 This is an enlarged schematic diagram of the frame structure of a logistics transport trolley.

[0013] In the diagram: 1. Frame; 11. Guide groove; 12. Base plate; 2. Casters; 3. Partition; 31. Bearing plate; 32. Guide block; 33. Slide groove; 4. Lifting mechanism; 41. Support rod; 42. Swing plate; 43. Follower rod; 44. Locking plate; 441. Connecting groove; 442. Lower top block; 443. Upper top block; 45. Gear plate; 46. Support plate; 47. Slider. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: a logistics conveying trolley, including a frame 1, a base plate 12 fixedly installed at the bottom of the frame 1, and a lifting mechanism 4 fixedly installed at the top side of the base plate 12. The lifting mechanism 4 includes a support rod 41 fixedly connected to the top of the base plate 12, and a swing plate 42 rotatably installed on the bottom side wall of the support rod 41. Workers only need to manually swing the swing plate 42 to drive the partition 3 to rise and fall, without the need for additional tools or complicated steps, thus reducing the intensity of manual labor. A follower rod 43 is fixedly installed at the center of the side wall of the swing plate 42, and a locking plate 44 is rotatably installed on the top of the follower rod 43. A gear plate 45 is engaged with the side wall of the locking plate 44, utilizing a lock... The meshing relationship between the stop plate 44 and the toothed disc 45 naturally forms a reverse locking capability during the transmission process. When the external force disappears, the reverse rotation of the toothed disc 45 will be blocked by the stop plate 44, eliminating the risk of falling from a structural perspective. At the same time, the meshing and locking between the stop plate 44 and the toothed disc 45 can immediately fix the position of the partition 3 in case of operational negligence such as accidental touch, preventing damage to goods from impact or injury to workers, and directly improving the safety of logistics operations. A support plate 46 is fixedly installed on the side wall of the toothed disc 45, and a slider 47 is rotatably installed on the side end of the support plate 46. The partition 3 is slidably installed on the outer wall of the slider 47. The whole structure constitutes a miniaturized and lightweight lifting and anti-fall mechanism adapted to logistics trolleys.

[0016] Please see Figures 1-4This utility model provides a technical solution: a logistics conveying trolley, including a locking plate 44 with a lower push block 442 and an upper push block 443 fixedly installed at both ends of its side wall. The lower push block 442 and the upper push block 443 can reciprocate into the tooth groove of the toothed disc 45. The double push blocks make the engagement between the locking plate 44 and the toothed disc 45 tighter, and the force can be alternated during the reciprocating push process, avoiding transmission failure caused by long-term wear of a single engagement point. A connecting groove 441 is opened on the locking plate 44, and the top of the follower rod 43 is rotatably installed in the connecting groove 441. The connecting groove 441 is for the rotation of the follower rod 43. Providing a certain amount of room for movement allows the swing of the follower rod 43 to be more flexibly converted into the left and right movement of the locking plate 44, avoiding transmission jamming caused by component installation errors. The bottoms of the lower top block 442 and the upper top block 443 are both arc-shaped. The arc-shaped bottom design converts the impact force when the top block is engaged in the tooth groove into a smooth squeezing force, avoiding wear of the toothed disc 45 or the top block caused by rigid collision. The lower top block 442 and the upper top block 443 drive the toothed disc 45 to rotate by reciprocatingly engaging in the tooth groove of the toothed disc 45. Moreover, the arc-shaped structure will form a self-locking effect that becomes tighter the more reverse the force is applied after the top block is engaged in the tooth groove.

[0017] Please see Figures 1-4 This utility model provides a technical solution: a logistics conveying trolley, including a partition 3 and a support plate 31. A groove 33 is provided on one side of the support plate 31. The inner wall of the groove 33 is slidably connected to the outer wall of the slider 47. The sliding connection between the groove 33 and the slider 47 restricts the movement trajectory of the slider 47 through the groove structure, ensuring that the slider 47 moves only in the vertical direction when it drives the support plate 31 to rise and fall, avoiding the tilting of the partition 3 caused by horizontal deviation. Guide blocks 32 are fixedly installed on both sides of the support plate 31 away from the groove 33.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a logistics conveying trolley, including a guide groove 11 opened on the inner side wall of the frame 1, the inner wall of the guide groove 11 being slidably connected to the outer wall of the guide block 32, the guide groove 11 providing a stable sliding channel for the guide block 32, and avoiding the guide block 32 directly rubbing against the inner side wall of the frame 1.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a logistics conveying trolley, including a base plate 12 with universal wheels 2 at the four corners of the bottom. The universal wheels 2 can turn 360°, solving the problem of inconvenient turning of traditional fixed wheels. The outer wall of the universal wheels 2 is made of rubber, which has a cushioning and shock absorption effect, reducing the bumps when the trolley moves and avoiding damage to the goods from collisions. The frame 1 has a U-shaped structure, providing installation space for the partition 3 and the lifting mechanism 4.

[0020] Working principle: The worker manually swings the swing plate 42, which is rotatably connected to the support rod 41, causing the follower rod 43, fixed to the center of the side wall of the swing plate 42, to swing synchronously. The top of the follower rod 43 is rotatably connected to the locking plate 44 through the connecting groove 441, thereby driving the locking plate 44 to move back and forth. At this time, the lower top block 442 and the upper top block 443 at both ends of the side wall of the locking plate 44 alternately engage with the tooth groove of the gear disc 45 and drive it to rotate. When the gear disc 45 rotates, the support plate 46 fixed to its side wall rotates synchronously. The slider 47, which is rotatably mounted on the side end of the partition 3, slides in the groove 33 opened on one side of the support plate 31 of the partition 3. At the same time, the support plate 31 slides vertically along the guide groove 11 on the inner side wall of the frame 1 through the guide blocks 32 on both sides, so as to realize the smooth lifting and lowering of the partition 3. During this process, if the external force disappears due to the negligence of the operator, the lower top block 442 or the upper top block 443 will be stuck into the tooth groove due to the reverse force of the toothed disc 45. Through the meshing relationship, the toothed disc 45 is prevented from reversing, thereby locking the position of the partition 3 and preventing it from falling rapidly.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A logistics conveying trolley, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly installed with a base plate (12), and the top side of the base plate (12) is fixedly installed with a lifting mechanism (4). The lifting mechanism (4) includes a support rod (41) fixedly connected to the top of the base plate (12). A swing plate (42) is rotatably installed on the bottom side wall of the support rod (41). A follower rod (43) is fixedly installed at the center of the side wall of the swing plate (42). A locking plate (44) is rotatably installed on the top of the follower rod (43). A gear plate (45) is meshed with the side wall of the locking plate (44). A support plate (46) is fixedly installed on the side wall of the gear plate (45). A slider (47) is rotatably installed on the side end of the support plate (46). A partition plate (3) is slidably installed on the outer wall of the slider (47).

2. The logistics conveying trolley as described in claim 1, characterized in that: The locking plate (44) has a lower top block (442) and an upper top block (443) fixedly installed at both ends of its side wall. The lower top block (442) and the upper top block (443) can reciprocate into the tooth groove of the gear plate (45).

3. A logistics conveying trolley as described in claim 2, characterized in that: The partition (3) includes a support plate (31), and a groove (33) is provided on one side of the support plate (31). The inner wall of the groove (33) is slidably connected to the outer wall of the slider (47). Guide blocks (32) are fixedly installed on both sides of the support plate (31) away from the groove (33).

4. A logistics conveying trolley as described in claim 3, characterized in that: The inner sidewall of the frame (1) is provided with a guide groove (11), and the inner wall of the guide groove (11) is slidably connected to the outer wall of the guide block (32).

5. A logistics conveying trolley as described in claim 4, characterized in that: The locking plate (44) has a connecting groove (441), and the top of the follower rod (43) is rotatably installed in the connecting groove (441).

6. A logistics conveying trolley as described in claim 5, characterized in that: The bottom of both the lower top block (442) and the upper top block (443) are arc-shaped. The lower top block (442) and the upper top block (443) drive the toothed disc (45) to rotate by reciprocatingly engaging the toothed disc (45) in the tooth groove.

7. A logistics conveying trolley as described in claim 6, characterized in that: The bottom of the base plate (12) is provided with casters (2) at the four corners, and the outer wall of the casters (2) is made of rubber.

8. A logistics conveying trolley as described in claim 7, characterized in that: The frame (1) has a U-shaped structure, providing installation space for the partition (3) and the lifting mechanism (4).

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