Trolley with automatic blocking device
By setting up an automatic blocking device in the roller conveyor of the trolley, the self-weight of the cargo triggers the downward pressure of the barrier roller, the one-way passage and reverse lock are achieved, which solves the problem of cargo loss caused by cargo slippage and disengagement in traditional cargo handling, and improves the safety and efficiency of cargo handling.
Patent Information
- Application Number
- CN202520693447.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2035-04-14
AI Technical Summary
In traditional cargo handling, manual handling of heavy materials is inefficient and safety risks. During the transportation process of the drum conveyor, the goods are prone to sliding due to inertia, causing the goods to slip off the conveying plane, causing the hidden danger of cargo damage.
A small trolley with automatic blocking device is designed to trigger the downward pressure of the barrier roller through the weight of the cargo, so as to realize one-way traffic and reverse mechanical locking of the cargo, eliminating the risk of cargo loss caused by cargo slippage and detachment.
While retaining the labor-saving advantage of roller conveying, through mechanical linkage and spring reset, automatic blocking and release of goods during one-way passage is achieved, the cargo displacement trajectory is controlled, the risk of cargo loss caused by cargo slippage is eliminated, and the safety and efficiency of cargo handling is improved.
Smart Images
Figure CN222905617U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of logistics conveying equipment, and particularly relates to a trolley with an automatic blocking device. Background Art
[0002] In traditional cargo handling operations, trolleys generally rely on manual loading and unloading of goods. Especially for heavy materials, manual handling has low efficiency and safety risks. Although roller conveyors can reduce labor intensity through rolling friction, during the conveying process, goods are prone to slide on the conveying rollers due to inertia, and there is a hidden danger of goods slipping off the conveying plane and causing cargo damage. Therefore, there is an urgent need for a trolley with an automatic blocking device to prevent goods from slipping. Summary of the Utility Model
[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a trolley with an automatic blocking device. By triggering the downward pressure of the blocking roller by the weight of the goods, one-way passage of the goods and reverse mechanical locking are realized, and the risk of cargo damage caused by goods slipping is eliminated, so as to solve the problems raised in the above background art.
[0004] To achieve the above object, the utility model provides the following technical solutions:
[0005] A trolley with an automatic blocking device, comprising: a trolley, a roller conveyor is arranged on the top of the trolley, a plurality of conveying rollers for conveying goods are arranged on the roller conveyor, a blocking device is arranged between the two conveying rollers at the front end in the inner cavity of the roller conveyor, the blocking device includes a sheet metal base installed in the inner cavity of the roller conveyor, two vertical plates are symmetrically arranged on the top of the sheet metal base, a rocker is rotatably arranged inside the two vertical plates, a connecting plate is arranged at the middle position of the outer wall of the rocker, one end of the connecting plate is provided with a blocking roller for blocking the falling of goods, the other end is provided with a limiting roller for adjusting the position of the blocking roller, and tension springs are arranged on the inner side walls of the two vertical plates, the other ends of the tension springs are installed on the side walls of the limiting rollers, a limiting seat for limiting its position is arranged on the top of the sheet metal base on one side of the limiting roller, the limiting roller is closely attached to the back of the limiting seat, and the end of the blocking roller away from the connecting plate extends above the conveying roller.
[0006] As a further scheme of the present application: both ends of the rocker penetrate through the vertical plates and the roller conveyor and extend to the outside thereof, and a release rod for driving its rotation is arranged at the end of the rocker located outside the roller conveyor.
[0007] As a further scheme of the present application: convex shafts are arranged on both sides of the limiting roller, and the connecting plate is sleeved on the outer wall of the convex shaft.
[0008] As a further solution of the present application: drawbars are provided on the inner side walls of both vertical plates. One end of a tension spring is installed at the end of the drawbar far from the inner side wall of the vertical plate, and the other end is installed on the outer wall of the convex shaft to connect the limit roller.
[0009] As a further solution of the present application: auxiliary rollers for assisting in goods transportation are provided on the top of the sheet metal base outside both vertical plates, and the circumferential surface of the auxiliary roller is flush with the circumferential surface of the conveying roller.
[0010] As a further solution of the present application: a plurality of conveying rollers are rotatably installed in the inner cavity of the roller conveyor, and the circumferential portions of the plurality of conveying rollers all extend above the roller conveyor.
[0011] As a further solution of the present application: the trolley includes a welded frame. The roller conveyor is installed on the top of the welded frame, and casters for assisting its displacement are provided at the four corners of the bottom of the welded frame, and a handrail for driving its displacement is provided on the back of the welded frame.
[0012] Compared with the prior art, the advantages of the present utility model are as follows:
[0013] By providing a blocking device in the roller conveyor, while retaining the advantage of labor-saving roller transportation, through mechanical linkage and tension spring reset, automatic blocking and release during one-way passage of goods are achieved. When pushing forward, the self-weight of the goods triggers the blocking roller to press down, and when moving backward, the blocking roller blocks the sliding of the goods, effectively controlling the displacement trajectory of the goods, eliminating the risk of damage to goods caused by slipping, and improving the safety and handling efficiency of goods handling. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 FIG. is a three-dimensional schematic diagram of a trolley with an automatic blocking device according to an embodiment of the present application;
[0016] Figure 2 FIG. is an assembly schematic diagram of a blocking device according to an embodiment of the present application;
[0017] Figure 3 FIG. is a three-dimensional schematic diagram of a blocking device according to an embodiment of the present application;
[0018] Figure 4 FIG. is a three-dimensional schematic diagram of another perspective of a blocking device according to an embodiment of the present application;
[0019] Figure 5 Schematic diagram of the use of a blocking device according to an embodiment of the present application.
[0020] In the figure: 1, trolley; 11, welded frame; 12, caster; 13, armrest; 2, roller conveyor; 21, conveying roller; 3, blocking device; 31, sheet metal base; 32, vertical plate; 321, pull rod; 33, rocker; 331, release rod; 34, connecting plate; 35, blocking roller; 36, limiting roller; 361, convex shaft; 37, tension spring; 38, limiting seat; 39, auxiliary roller. Detailed implementation mode
[0021] Combined with Figures 1 - 5 As shown in the figure, in this embodiment, a roller conveyor 2 is arranged on the top of the trolley 1, and a plurality of conveying rollers 21 for conveying goods are arranged on the roller conveyor 2. The circumferential part of the conveying roller 21 extends above the roller conveyor 2. Using the conveying roller 21 to convey goods reduces the demand for manual thrust, reduces labor intensity, and improves handling efficiency.
[0022] In this embodiment, the blocking device 3 includes a sheet metal base 31 installed in the inner cavity of the roller conveyor 2. Two vertical plates 32 are symmetrically arranged on the top of the sheet metal base 31. A rocker 33 is rotatably arranged inside the two vertical plates 32. A connecting plate 34 is arranged at the middle position of the outer wall of the rocker 33. One end of the connecting plate 34 is provided with a blocking roller 35 for blocking the falling of goods, and the other end is provided with a limiting roller 36 for adjusting the position of the blocking roller 35. Tension springs 37 are arranged on the inner side walls of the two vertical plates 32, and the other ends of the tension springs 37 are installed on the side walls of the limiting roller 36. A limiting seat 38 for limiting its position is arranged on the top of the sheet metal base 31 on one side of the limiting roller 36. The limiting roller 36 is closely attached to the back of the limiting seat 38. One end of the blocking roller 35 away from the connecting plate 34 extends above the conveying roller 21; the blocking roller 35 blocks the goods at the front end of the roller conveyor 2. The self-weight of the goods triggers the downward pressure of the blocking roller 35 to realize the one-way passage of the goods. After the goods pass, the limiting roller 36 moves under the action of the pulling force of the tension spring 37, driving the blocking roller 35 connected to it through the connecting plate 34 to return to its original position. At the same time, the limiting roller 36 moves to the back of the limiting seat 38, and the displacement of the limiting roller 36 is blocked by the limiting seat 38 to realize the locking of the limiting roller 36 and the blocking roller 35, so that the blocking roller 35 blocks the reverse sliding of the goods, eliminates the risk of damage to the goods caused by the falling of the goods, and improves the safety of goods handling.
[0023] In this embodiment, both ends of the rocker 33 penetrate through the vertical plate 32 and the roller conveyor 2 and extend to the outside thereof. A release rod 331 for driving its rotation is provided at one end of the rocker 33 located outside the roller conveyor 2. When the self-weight of the goods cannot press the blocking roller 35, the rocker 33 is driven to rotate by the release rod 331, which can drive the connecting plate 34 mounted on the rocker 33 to rotate, and drive the blocking roller 35 and the limiting roller 36 mounted at both ends of the connecting plate 34 to displace. The blocking roller 35 is moved below the roller conveyor 2 to complete the manual adjustment of the position of the blocking roller 35, preventing the blocking roller 35 from interfering with the goods, preventing the goods from being too light to trigger the downward pressure of the blocking roller 35, and ensuring the passage of the goods.
[0024] In this embodiment, convex shafts 361 are provided on both sides of the limiting roller 36. The connecting plate 34 is sleeved on the outer wall of the convex shaft 361. By using the convex shaft 361 to mount the connecting plate 34, the connecting plate 34 follows the rotation of the rocker 33 to drive the displacement of the limiting roller 36, realizing the position adjustment of the limiting roller 36.
[0025] In this embodiment, pull rods 321 are provided on the inner side walls of the two vertical plates 32. One end of the tension spring 37 is mounted at the end of the pull rod 321 away from the inner side wall of the vertical plate 32, and the other end is mounted on the outer wall of the convex shaft 361 to connect the limiting roller 36. When manually adjusting the position of the blocking roller 35 by using the rocker 33 and the connecting plate 34, the limiting roller 36 following the rotation of the rocker 33 and the connecting plate 34 pulls the tension spring 37 to deform through the convex shaft 361. The deformed tension spring 37 can pull the limiting roller 36 and the blocking roller 35 connected thereto through the connecting plate 34 to return to their original positions under the action of its own pulling force, making the limiting roller 36 fit against the back of the limiting seat 38. The limiting seat 38 blocks the displacement of the limiting roller 36, unidirectionally locking the positions of the blocking roller 35 and the limiting roller 36 after reset, preventing the goods from reversely pressing the blocking roller 35 to displace, and achieving the purpose of unidirectional passage of the blocking roller 35.
[0026] In this embodiment, auxiliary rollers 39 for assisting in the conveyance of goods are provided on the top of the sheet metal base 31 on the outer sides of the two vertical plates 32. The circumferential surface of the auxiliary roller 39 is flush with the circumferential surface of the conveying roller 21. The auxiliary roller 39 is used to assist the conveying roller 21 in conveying the goods, preventing the goods from getting stuck between the conveying rollers 21 on both sides of the blocking device 3, and ensuring the passage of the goods.
[0027] In this embodiment, a plurality of conveying rollers 21 are evenly rotatably mounted in the inner cavity of the roller conveyor 2, and moreover, the circumferential parts of the plurality of conveying rollers 21 all extend above the roller conveyor 2. The plurality of conveying rollers 21 lift and convey the goods, which can reduce the requirement for manual thrust and reduce the labor intensity.
[0028] In this embodiment, the trolley 1 includes a welded frame 11. The roller conveyor 2 is installed on the top of the welded frame 11. Casters 12 for assisting its displacement are provided at the four corners of the bottom of the welded frame 11. A handrail 13 for driving its displacement is provided on the back of the welded frame 11. The handrail 13 is used to push the trolley 1 to displace, and the trolley 1 moves on the ground through the casters 12, which is convenient for cargo transfer.
[0029] The working principle of the present utility model is as follows: During use, the goods can be transported onto the roller conveyor 2. The goods are pushed by the conveying rollers 21 and the auxiliary rollers 39, and the self-weight of the goods triggers the blocking roller 35 to press down, realizing the one-way passage of the goods. At the same time, after the goods pass through, the limiting roller 36 pulls the blocking roller 35 to return to its original position under the action of the pulling force of the tension spring 37. The limiting seat 38 blocks the displacement of the limiting roller 36, and the positions of the blocking roller 35 and the limiting roller 36 after one-way locking and resetting are locked, preventing the goods from reversely pressing the blocking roller 35 to displace. While retaining the labor-saving advantage of roller conveying, through mechanical linkage and the reset of the tension spring 37, the automatic blocking and release during the one-way passage of the goods can be realized, controlling the displacement trajectory of the goods, eliminating the risk of cargo damage caused by the slipping of the goods, and improving the safety and handling efficiency of cargo handling.
[0030] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A trolley with an automatic blocking device, comprising: A cart (1), wherein a roller conveyor (2) is arranged on the top of the cart (1), and a plurality of conveying rollers (21) for conveying goods are arranged on the roller conveyor (2), and the character is that a blocking device (3) is arranged between two conveying rollers (21) at the front end of the inner cavity of the roller conveyor (2), and the blocking device (3) comprises a sheet metal base (31) installed in the inner cavity of the roller conveyor (2), and two vertical plates (32) are arranged on the top of the sheet metal base (31) and are symmetrically distributed, and rockers (33) are arranged inside the two vertical plates (32) for rotation, and a connecting plate (34) is arranged at the middle position of the outer wall of the rocker (33), and the connecting plate (34) is arranged at the middle position of the outer wall of the rocker (33). A blocking roller (35) for blocking goods from falling off is arranged at one end of the connecting plate (34), and a limiting roller (36) for adjusting the position of the blocking roller (35) is arranged at the other end, and a tension spring (37) is arranged on the inner side walls of the two vertical plates (32), and the other end of the tension spring (37) is installed on the side wall of the limiting roller (36). A limiting seat (38) for limiting the position of the limiting roller (36) is arranged on the top of the sheet metal base (31) and located on one side of the limiting roller (36). The limiting roller (36) is closely attached to the back of the limiting seat (38), and the blocking roller (35) extends from one end of the connecting plate (34) to the top of the conveying roller (21).
2. A trolley with an automatic blocking device according to claim 1, characterized in that: Both ends of the rocker (33) penetrate the vertical plate (32) and the roller conveyor (2) and extend to the outside thereof; one end of the rocker (33) located outside the roller conveyor (2) is provided with a release rod (331) for driving the rocker (33) to rotate.
3. A trolley with an automatic blocking device according to claim 2, characterized in that: Convex shafts (361) are provided on both sides of the limiting roller (36), and the connecting plate (34) is sleeved on the outer wall of the convex shaft (361).
4. A trolley with an automatic blocking device according to claim 3, characterized in that: The inner side walls of the two vertical plates (32) are each provided with a pull rod (321), one end of the tension spring (37) is mounted on an end of the pull rod (321) away from the inner side wall of the vertical plate (32), and the other end is mounted on the outer wall of the convex shaft (361) to connect with the limiting roller (36).
5. A trolley with an automatic blocking device according to claim 2, characterized in that: Auxiliary rollers (39) for assisting cargo transportation are disposed on the top of the sheet metal base (31) and on the outsides of the two vertical plates (32); the circumferential surface of the auxiliary rollers (39) is flush with the circumferential surface of the transport rollers (21).
6. A trolley with an automatic blocking device according to claim 1, characterized in that: A plurality of conveying rollers (21) are evenly rotatably mounted in the inner cavity of the roller conveyor (2), and the circumferential portions of the plurality of conveying rollers (21) extend above the roller conveyor (2).
7. A trolley with an automatic blocking device according to claim 1, characterized in that: The cart (1) comprises a welded frame (11), the roller conveyor (2) is mounted on the top of the welded frame (11), and casters (12) for assisting its displacement are arranged at the four corners of the bottom of the welded frame (11), and a handrail (13) for driving its displacement is arranged on the back of the welded frame (11).