Mechanical turnover mechanism for container
By designing a mechanical tilting mechanism for cargo boxes using an electric push rod and scraper mechanism, the problem of manually separating the pallets and seats in existing technologies has been solved, achieving automated unloading and cleaning and improving work efficiency.
Patent Information
- Application Number
- CN202520760587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing cargo container tipping equipment requires workers to manually separate the pallets and seats, and it is difficult to completely unload the goods, resulting in low work efficiency.
Design a mechanical tipping mechanism for cargo boxes, including an electric push rod, a scraper mechanism and a power switch. The mechanism enables automatic separation of the pallet and the card holder through simple power switch operation, and automatically cleans up any remaining cargo using the scraper.
The separation of the pallet and the pallet seat can be achieved without manual operation by staff, and the scraper automatically cleans up residual goods, improving unloading efficiency and work convenience.
Smart Images
Figure CN223935844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loading and unloading auxiliary equipment technology, and in particular to a mechanical tilting mechanism for cargo boxes. Background Technology
[0002] In the industrial production field, there are many applications of cargo boxes that are mechanically driven to flip based on hydraulic cylinders, pneumatic cylinders, electric push rods, etc. For example, after the AGV trolley arrives at the unloading station, the cargo box is flipped mechanically to unload the goods. Small industrial products are pre-loaded into the cargo box (such as a large number of small blank parts after being machined by workers, etc.). After the subsequent transport vehicle arrives at the loading station, the cargo box is flipped mechanically to unload the goods into the vehicle's cargo box.
[0003] Although existing vehicles or production station cargo boxes can achieve tipping unloading, due to structural limitations, there are still some technical shortcomings that urgently need improvement. Firstly, to facilitate automatic tipping unloading, the upper sides of the cargo box's rear door are respectively rotatably installed on two parts of the upper rear door frame (during unloading, due to the change in the cargo box's angle, the rear door will open along the upper rotatable installation point and the rear side of the cargo box, allowing the goods inside the cargo box to fall out automatically). To prevent goods from leaking out of the cargo box during loading, the clamp at the lower end of the rear door is inserted into the clamp seat at the lower end of the cargo box by a snap-fit method. During unloading, workers need to manually separate the clamp and the clamp seat with tools, which is inconvenient for workers. Secondly, after the cargo box is tilted, if the angle is not precise or the goods inside the box do not slide easily (for example, if the box contains powdery substances), it cannot be guaranteed that the goods can be completely unloaded. In such cases, workers usually need to use tools (such as brooms or scrapers) to remove the remaining goods from the box, which is inconvenient and reduces work efficiency. Due to these factors, it is essential to provide a mechanism that facilitates workers and ensures the most complete unloading of goods from the cargo box. Utility Model Content
[0004] To overcome the shortcomings of existing cargo box tipping devices, which are limited by their structure and have the drawbacks described in the background art, this utility model provides a cargo box mechanical tipping mechanism that eliminates the need for manual tools to separate the cargo box's pallet and seat, and to clean up any remaining cargo inside the cargo box. Workers can easily separate the pallet and seat by operating a simple power switch, and a scraper automatically cleans the remaining cargo inside the cargo box from front to back. This provides convenience for workers and improves work efficiency.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A mechanical tipping mechanism for a cargo box includes electric push rods, a support base, and a scraper mechanism. Multiple sets of electric push rods are included. The support base has an opening slot at its upper end. The lower ends of two sets of electric push rods are rotatably mounted inside the lower end of the support base, while the upper ends of these two sets of electric push rods are rotatably mounted together with the front lower end of the cargo box. The two sides of the lower rear end of the cargo box are rotatably mounted on the rear end of the support base. A locking seat for the cargo box is fixedly mounted on the lower part of the rear door frame, and another set of electric push rods is fixedly mounted on the outside of the rear door of the cargo box. A locking plate for the cargo box is fixedly mounted on the lower end of the other set of electric push rods. The scraper mechanism includes a motor reduction gear, a lead screw, a bearing housing, a scraper, and a rear bearing. There are at least two sets of motor reducers, lead screws, bearing housings, and rear bearings. There are fixing holes on both sides of the lower front of the cargo box. The rear end and front end of the lead screw are fixedly installed in the inner ring of the bearing housing and the inner ring of the rear bearing, respectively. The rear end of the motor reducer shaft and the front side of the lead screw are fixedly welded together. There are threaded holes in the middle of both sides of the scraper. The threaded holes on both sides of the scraper and the two sets of lead screws are installed together by threads. The two sets of rear bearings and two sets of bearing housings are fixedly installed in the fixing holes on both sides of the lower front of the cargo box and on both sides of the rear inner end, respectively. The two sets of motor reducers are fixedly installed on both sides of the lower front outer end of the cargo box.
[0007] Furthermore, flexible cleaning plates are fixedly installed at the lower end and left and right ends of the scraper, and the lower end and side ends of the cleaning plates slide in contact with the lower end and side ends of the cargo box.
[0008] Furthermore, the electric actuator can also be replaced by a hydraulic cylinder.
[0009] Furthermore, the length of the lead screw is less than the front-to-back length of the cargo box.
[0010] Furthermore, the card plate and card seat under the other set of electric push rods are in a vertical plane, the external dimensions of the card plate are smaller than the internal dimensions of the card seat, when the movable column of the other set of electric push rods is at the lower stop point, the card plate is located inside the card seat, and when the movable column of the other set of electric push rods is at the upper stop point, the card plate is located at the upper outer end of the card seat.
[0011] Furthermore, the lateral width of the opening slot is greater than the outer diameter of the first and second sets of electric push rod movable columns and cylinders.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model can be widely used in production areas (for example, workers pre-load small industrial products into cargo boxes after production, and then unload them into the vehicle's cargo box by mechanically driving the cargo box to rotate after the transport vehicle arrives at the loading station; AGV trolleys also unload goods by mechanically driving the cargo box to rotate after arriving at the unloading station, etc.). In application, workers do not need to manually separate the cargo box's pallets and seats with tools, nor do they need to clean up any remaining goods inside the cargo box. A simple power switch operation allows the pallets and seats to separate, and a scraper automatically cleans the remaining goods from front to back inside the rotated cargo box. This utility model brings convenience to workers and correspondingly improves work efficiency, thus having good application prospects. Attached Figure Description
[0013] Figure 1 This is an overall sectional view of the present invention.
[0014] Figure 2 , 3 Figures 4 and 5 are partial structural diagrams of this utility model.
[0015] Figure 6 This is the circuit diagram of this utility model. Detailed Implementation
[0016] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, a mechanical tilting mechanism for a cargo box includes electric push rods M1, M2, and M3, bearing seats 1, power switches S1, S2, and S3, a power supply module W1, a support base 2, a support plate 3, and a scraper mechanism 4. There are three sets of electric push rods. The upper ends of the hollow support base 2 have longitudinally distributed opening slots 21 on both sides from the middle to the front. The lower ends of the cylinders of the first set of electric push rods M1 and the second set of electric push rods M2 are rotatably installed on both sides of the lower end of the support base 2. The upper ends of the movable columns of the first set of electric push rods M1 and the second set of electric push rods M2 are rotatably installed together on both sides of the lower front of the cargo box 5. There are two sets of bearing seats 1 and two sets of support plates 3. The lower ends of the two sets of bearing seats 1 are fixed. The upper rear sides of the support base 2 are installed, and the lower parts of the two support plates 3 are respectively welded to the upper front sides of the support base 2; a shaft 51 is welded to each of the lower rear sides of the cargo box 5, and the outer ends of the two shafts 51 are respectively tightly fitted and fixed in the inner rings of the bearings of the two bearing seats 1; the front end of the cargo box's clamping seat 52 is welded to the lower middle of the rear door frame of the cargo box 5; the third set of electric push rods M3 are vertically distributed and their cylinders are fixedly installed on the rear outer side of the rear door 54 of the cargo box (the upper end of the rear door 54 is rotatably installed on the two parts of the upper end of the rear door frame of the cargo box); the clamping plate 53 of the cargo box is fixedly installed on the lower end of the movable column of the third set of electric push rods M3; the scraper mechanism includes a motor reduction device M4, a lead screw 41, a bearing seat A42, a scraper 43, and a rear bearing 44. There are two sets of motor reduction gear M4, lead screw 41, bearing housing A42, and rear bearing 44. There is a fixing hole 55 on each side of the lower front end of the cargo box 5. The rear end and front end of the lead screw 41 are fixedly installed in the inner ring of the bearing housing A42 and the inner ring of the rear bearing 44, respectively. The rear end of the rotating shaft of the motor reduction gear M4 and the front side of the lead screw 41 are fixedly welded together. There is a threaded hole 431 on each side of the scraper 43. The threaded holes 431 on both sides of the scraper and the two sets of lead screws 41 are threaded together. The two sets of rear bearings 44 and the two sets of bearing housings A42 are fixedly installed on the fixing holes on both sides of the lower front end of the cargo box 5 and the inner rear end, respectively. The two sets of motor reduction gear M3 are fixedly installed on both sides of the lower front outer end of the cargo box 5. The power supply module W1 and power switches S1, S2, and S3 are installed in the electrical control box 6. The electrical control box 6 is installed on the middle right outer side of the support base 2.
[0017] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, a rubber cleaning plate 432 (facilitating the cleaning of goods inside the cargo box) is glued horizontally and vertically to the lower end and left and right ends of the scraper 43, respectively. The lower end and side ends of the cleaning plate 432 slide in contact with the lower end and side ends of the cargo box 5. The electric push rods M1, M2, and M3 can also be replaced by hydraulic cylinders. The length of the lead screw 41 is less than the front-to-back length of the cargo box 5. The clamping plate 53 and the clamping seat 52 under the movable column of the third set of electric push rods M3 are on the same vertical plane. The external dimensions of the clamping plate 53 are smaller than the internal dimensions of the clamping seat 52. When the movable column of the third set of electric push rods M3 is at the lower stop point, the clamping plate 53 is located inside the clamping seat 52; when the movable column of the third set of electric push rods M3 is at the upper stop point, the clamping plate 53 is located outside the upper end of the clamping seat 52. The lateral width of the opening slot 21 is greater than the outer diameter of the movable columns and cylinder of the first set of electric push rods M2 and the second set of electric push rods M3. When the cargo box 5 is in a horizontal position, the lower front end of the cargo box 5 contacts the upper ends of the two support plates 3. The power module can also be replaced by a battery from a vehicle (AGV, various manually driven vehicles), with the two terminals of the battery connected to the power input terminals of power switches S1, S2, and S3 via wires. The power input terminals 1 and 2 of power module W1 are connected to the two terminals of a 220V AC power supply via wires. The power output terminals 3 and 4 of power module W1 are connected to the power input terminals 1 and 2 of power switches S1, S2, and S3 via wires. The power output terminals 3, 4, 5, and 6 of power switch S1 are connected to the positive and negative, and negative-positive, power input terminals of the first set of electric push rods M1 and the second set of electric push rods M2 via wires. The power output terminals 3, 4, 5, and 6 of power switch S2 are connected to the positive and negative, and negative-positive, power input terminals of the third set of electric push rods M3 via wires. The power output terminals 3, 4 and 5, 6 of the power switch S3 are connected to the positive and negative and negative and positive power input terminals of the two sets of motor reduction gears M4 via wires.
[0018] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, this utility model can be widely used in production areas (for example, workers pre-load small industrial products into cargo boxes after production, and then unload them into the vehicle's cargo box by mechanically driving the cargo box to rotate after the subsequent transport vehicle arrives at the loading station; AGV trolleys can also unload goods by mechanically driving the cargo box to rotate after arriving at the unloading station, etc.). Specifically, the lower end of the support base is fixedly installed in the corresponding position. After the AC 220V power supply enters the power input terminal of the power module W1, the power module W1 outputs a stable DC 36V power supply through pins 3 and 4, which enters the power input terminals of power switches S1, S2, and S3. When loading is required, the operator moves the handle of power switch S2 to the left, connecting pins 1 and 2, and pins 3 and 4 of power switch S2. This energizes the positive and negative power input terminals of electric push rod M3, and the movable column of electric push rod M3 pushes the card plate 53 downward into the card holder 52 (the power switch is turned off after it reaches the correct position). This secures the rear door of the cargo box, preventing it from opening during loading or unloading. When unloading is required, the operator moves the handle of power switch S2 to the right, connecting pins 1 and 2, and pins 5 and 6 of power switch S1. This energizes the positive and negative power input terminals of electric push rod M3, and the movable column of electric push rod M3 moves the card plate 53 upward, separating it from the upper part of card holder 52 (the power switch is turned off after it reaches the correct position). This allows the lower part of the rear door to rotate along the upper rotating part, enabling the cargo to fall out of the cargo box when it tilts. During unloading, after the pallet 53 moves upward and separates from the upper end of the card holder 52, the handle of the power switch S1 is moved to the left, and pins 1 and 2 and pins 3 and 4 of the power switch S1 are connected respectively. In this way, the positive and negative power input terminals of the electric push rods M1 and M2 are energized, and the movable column of the electric push rods M1 and M2 will push the front end of the cargo box 5 upward, and the height of the rear end of the cargo box will decrease (the power switch S1 will be turned off after it is in place). Due to the height difference and the separation of the upper end of the pallet 53 and the card holder 52, the goods in the cargo box will fall from the front to the rear into the unloading station (or into the cargo box of other transfer vehicles, etc.). Before loading, turn the handle of power switch S1 to the right. Pins 1 and 2 and pins 5 and 6 of power switch S1 are connected respectively. This will energize the negative and positive power input terminals of electric push rods M1 and M2. The movable columns of electric push rods M1 and M2 will drive the front end of cargo box 5 to move downward, and the cargo box will gradually become horizontal (turn off power switch S1 after it is in place). The horizontal cargo box will facilitate subsequent loading operations.
[0019] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, when the goods loaded in the cargo box are not completely unloaded after the cargo box is tilted (for example, the goods inside the cargo box are powdery and have poor sliding properties, so it cannot be guaranteed that the goods can be completely unloaded from the cargo box), the staff will move the handle of the power switch S3 to the left. The 1st and 2nd pins and the 3rd and 4th pins of the power switch S3 will be connected respectively. In this way, the positive and negative power input terminals of the two sets of motor reduction devices M3 will be energized. The rotating shafts of the two sets of motor reduction devices M3 will drive the two sets of lead screws 41 to rotate counterclockwise. The external threads of the two sets of lead screws 41 will act on the internal threads of the screw hole 431 of the scraper 43. The scraper 43 will move from front to back inside the cargo box, which can push the goods adhering to the lower part of the cargo box out of the cargo box (the power switch will be turned off after the scraper moves to the rear end). When the goods loaded into the cargo box are tilted and completely unloaded, the operator moves the handle of power switch S3 to the right, connecting pins 1 and 2 and pins 5 and 6 of power switch S3 respectively. This energizes the positive and negative power input terminals of the two sets of motor reduction gears M3, causing the shafts of the two sets of motor reduction gears M3 to drive the two sets of lead screws 41 to rotate clockwise. The external threads of the two sets of lead screws 41 act on the internal threads of the screw holes 431 of the scraper 43, causing the scraper 43 to move from back to front inside the cargo box. The scraper then returns to the front of the cargo box (after reaching the front, the power switch is turned off). Through this method, in this application, there is no need for operators to manually separate the cargo box's clamps and seats with tools, nor to subsequently clean the remaining goods inside the cargo box. A simple power switch operation allows the clamps and seats to separate, and the scraper automatically cleans the remaining goods inside the tilted cargo box from back to front. This new invention brings convenience to staff and improves work efficiency accordingly, so it has good application prospects. (It should be noted that if the scraper mechanism function is to be used in this new invention, it is necessary to ensure that the goods in the cargo box will not be damaged by the rotation of the lead screw. In other words, if there is an extreme possibility that the goods in the cargo box may be damaged by the rotation of the lead screw, this function can be left unused.) Figure 6 Among them, electric push rods M1 and M2 are high-power reciprocating electric telescopic rod products; electric push rod M3 is a low-power reciprocating electric telescopic rod product; motor reduction mechanism M3 is a coaxial motor gear reducer product; power module W1 is an AC 220V to DC 36V power module product.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A mechanical tipping mechanism for a cargo box, comprising an electric push rod and a support base, characterized in that, It also features a scraper mechanism; multiple sets of electric push rods are included, with an opening slot at the upper end of the support base. The lower ends of two sets of electric push rods are rotatably mounted inside the lower end of the support base, while the upper ends of the two sets of electric push rods are rotatably mounted together with the front side of the lower end of the cargo box. The two sides of the lower rear end of the cargo box are rotatably mounted on the rear end of the support base. The cargo box's mounting bracket is fixedly mounted on the lower part of the cargo box's rear door frame, and another set of electric push rods is fixedly mounted on the outside of the cargo box's rear door. The cargo box's mounting plate is fixedly mounted on the lower end of the other set of electric push rods. The scraper mechanism includes a motor reduction gear, a lead screw, a bearing seat, a scraper, and a rear bearing. There are at least two sets of motor reducers, lead screws, bearing housings, and rear bearings. There are fixing holes on both sides of the lower front of the cargo box. The rear end and front end of the lead screw are fixedly installed in the inner ring of the bearing housing and the inner ring of the rear bearing, respectively. The rear end of the motor reducer shaft and the front side of the lead screw are fixedly welded together. There are threaded holes in the middle of both sides of the scraper. The threaded holes on both sides of the scraper and the two sets of lead screws are installed together by threads. The two sets of rear bearings and two sets of bearing housings are fixedly installed in the fixing holes on both sides of the lower front of the cargo box and on both sides of the rear inner end, respectively. The two sets of motor reducers are fixedly installed on both sides of the lower front outer end of the cargo box.
2. The mechanical tipping mechanism for a cargo box according to claim 1, characterized in that, Flexible cleaning plates are fixedly installed at the lower end and left and right ends of the scraper, and the lower end and side ends of the cleaning plates slide in contact with the lower end and side ends of the cargo box.
3. The mechanical tipping mechanism for a cargo box according to claim 1, characterized in that, Electric linear actuators can also be replaced by hydraulic cylinders.
4. The mechanical tipping mechanism for a cargo box according to claim 1, characterized in that, The length of the lead screw is less than the front-to-back length of the cargo box.
5. A mechanical tipping mechanism for a cargo box according to claim 1, characterized in that, The card plate and card seat under the other set of electric push rods are on a vertical plane. The external dimensions of the card plate are smaller than the internal dimensions of the card seat. When the movable column of the other set of electric push rods is at the lower stop point, the card plate is located inside the card seat. When the movable column of the other set of electric push rods is at the upper stop point, the card plate is located at the upper outer end of the card seat.
6. The mechanical tipping mechanism for a cargo box according to claim 1, characterized in that, The lateral width of the opening slot is greater than the outer diameter of the first and second sets of electric push rod movable columns and cylinders.