Self-dumping semitrailer
By designing auxiliary unloading components on the self-dumping semi-trailer, and using the transmission motor and screw system to realize automatic unloading of goods, the problem of manual handling of heavy goods in the prior art is solved, and an efficient and safe cargo unloading process is achieved.
Patent Information
- Application Number
- CN202421534780.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When loading and unloading box-type cargo, existing self-dumping semi-trailers require manual handling by staff, especially heavy goods, which increases the work intensity and efficiency of staff, and the goods are prone to collision.
A self-dumping semi-trailer is designed, with auxiliary unloading components provided on one side of the car, including a rear cover, a transmission motor, a screw, a movable block and a moving plate. The transmission motor drives the screw and the movable block to move, and the moving plate can be moved. The box-type cargo can move on the inclined rear cover as the moving plate moves, reducing manual handling.
The automatic unloading of box-type goods is realized, which reduces the work intensity of staff, improves the unloading efficiency, and effectively avoids the collision of goods and improves the protection of goods.
Smart Images

Figure CN222645888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transportation equipment, in particular to a dump type semitrailer. Background Art
[0002] A semi-trailer is a type of trailer and is a heavy-duty transport vehicle connected to the semi-trailer head by a traction pin.
[0003] In the prior art, when loading and unloading goods, the dump semi-trailer first opens the rear cover of the vehicle to allow the goods to be pulled out of the vehicle under its own gravity. This is usually applied to objects that are not afraid of bumps. For some box-type goods, including some goods that need to be prevented from collision, these goods need to be manually carried by workers. If the goods are heavy, it is not easy for the workers to carry them, which increases the workload of the workers and is inefficient. Utility Model Content
[0004] The purpose of the utility model is to provide a self-unloading semi-trailer to solve the problem that some box-type goods, including some goods to prevent collision, need to be manually carried by staff in the face of the above-mentioned background technology. If the goods are heavy, it is not easy for the staff to carry them, which increases the work intensity of the staff and is inefficient. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A self-unloading semi-trailer includes a carriage, a storage cavity is provided on the top of the carriage, an auxiliary unloading assembly is provided on one side of the carriage, the auxiliary unloading assembly includes a rear cover, the rear cover is movably connected to one side of the carriage, a rectangular mounting groove is provided on the side of the rear cover close to the storage cavity, a transmission motor is fixedly connected to the top of the rear cover, a screw rod is provided in the inner cavity of the rectangular mounting groove, one side of the screw rod is fixedly connected to the transmission end of the transmission motor, a movable block is threadedly sleeved on the outer side of the screw rod, and a movable plate is fixedly connected to the side of the movable block away from the screw rod.
[0005] Further preferably, a guide plate is fixedly connected to a side of the rear cover close to the storage cavity, a slide groove is opened on one side of the guide plate, and a side of the movable plate away from the screw rod extends to the inside of the slide groove. During the unloading of the box-type goods, the angle of the rear cover can be adjusted and supported by a damper. Subsequently, through the cooperation between the transmission motor, the screw rod and other components, the goods can be moved along with the movement of the movable plate. There is no need for manual moving by staff, which can reduce the work intensity of staff, avoid collision of goods, and enhance the protection of goods.
[0006] Further preferably, the movable plate is slidably connected to the slide groove, a fixing part is fixedly connected to a side of the rear cover away from the storage chamber, and a damper is fixedly connected to a side of the fixing part away from the rear cover. The damper is used to support the rear cover, and during the process of conveying goods, the damper can rise or fall with the change of the weight of the goods, which can effectively reduce shock and enhance the support stability.
[0007] Further preferably, one side of the carriage is hingedly connected with a hinge, and the other side of the hinge is hingedly connected to the rear cover, and the angle of the rear cover is adjusted by the hinge to realize the damper support damper, and the cargo on the rear cover can slide with the tilt angle.
[0008] Further preferably, a mounting plate is fixedly connected to the right side of the bottom of the storage cavity, a groove is opened on one side of the mounting plate, a cylinder is fixedly connected in the inner cavity of the groove, and a limiting end is fixedly connected to one side of the carriage, an internal thread is provided in the limiting end, which is matched with a limiting bolt, and the limiting bolt is screwed into the internal thread, thereby limiting the position of the rear cover.
[0009] Further preferably, a limiting bolt is threadedly connected in the inner cavity of the limiting end, and wheels are arranged at the bottom of the carriage.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] In the utility model, during the unloading process of box-type goods, the angle of the rear cover can be adjusted and supported by a damper, and subsequently, through the cooperation between the transmission motor, the screw rod and other components, the goods can be moved along with the movement of the moving plate, without the need for manual moving by the staff, which can reduce the workload of the staff, avoid collision of the goods, and enhance the protection of the goods.
[0012] In the utility model, a damper is used to support the rear cover. In the process of conveying goods, the damper can rise or fall with the change of the weight of the goods, which can effectively reduce shock and enhance the support stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the rear cover of the utility model;
[0016] Figure 4 This is a three-dimensional enlarged structural diagram of the guide plate of the utility model;
[0017] Figure 5 It is a schematic diagram of the enlarged three-dimensional structure of the local details of the utility model;
[0018] Figure 6 It is a schematic diagram of the enlarged three-dimensional structure of the local details of the utility model.
[0019] In the figure: 1, carriage; 2, storage chamber; 3, auxiliary unloading assembly; 301, rear cover; 302, rectangular mounting groove; 303, transmission motor; 304, screw rod; 305, movable block; 306, moving plate; 307, guide plate; 308, slide groove; 4, fixing part; 5, damper; 6, hinge; 7, mounting plate; 8, groove; 9, cylinder; 10, limit end; 11, limit bolt; 12, wheel; DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 6 The utility model provides a technical solution: a dump trailer includes a carriage 1, a storage chamber 2 is provided on the top of the carriage 1, an auxiliary unloading assembly 3 is provided on one side of the carriage 1, and the auxiliary unloading assembly 3 includes a rear cover 301, the rear cover 301 is movably connected to one side of the carriage 1, a rectangular mounting groove 302 is provided on one side of the rear cover 301 close to the storage chamber 2, a transmission motor 303 is fixedly connected to the top of the rear cover 301, a screw rod 304 is provided in the inner cavity of the rectangular mounting groove 302, and one side of the screw rod 304 is fixedly connected to the transmission end of the transmission motor 303 The outer side of the screw rod 304 is threadedly sleeved with a movable block 305, and the movable block 305 is fixedly connected to a movable plate 306 on the side away from the screw rod 304. The staff pushes the box-type cargo onto the rear cover 301, fits it with the surface of the movable plate 306, and starts the transmission motor 303 to drive the screw rod 304 to rotate. When the screw rod 304 rotates, it can drive the movable block 305 threadedly sleeved on its outer side to move, and then drive the movable plate 306 to move. The box-type cargo can move on the inclined rear cover 301 with the movement of the movable plate 306, thereby realizing the unloading of the box-type cargo.
[0022] In this embodiment, Figure 1 and Figure 3As shown, a guide plate 307 is fixedly connected to one side of the rear cover 301 close to the storage chamber 2, a slide groove 308 is provided on one side of the guide plate 307, and a side of the movable plate 306 away from the screw rod 304 extends to the inside of the slide groove 308. When the movable plate 306 moves, its two ends slide inside the slide groove 308.
[0023] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the movable plate 306 is slidably connected with the slide groove 308, the side of the rear cover 301 away from the storage chamber 2 is fixedly connected with a fixing part 4, the side of the fixing part 4 away from the rear cover 301 is fixedly connected with a damper 5, one side of the carriage 1 is hingedly connected with a hinge 6, the other side of the hinge 6 is hingedly connected to the rear cover 301, the angle of the rear cover 301 is flipped by the hinge 6, the rear cover 301 is tilted, and one side of the damper 5 contacts the ground to support the rear cover 301.
[0024] In this embodiment, Figure 1 and Figure 3 As shown, a mounting plate 7 is fixedly connected to the right side of the bottom of the storage cavity 2, a groove 8 is opened on one side of the mounting plate 7, a cylinder 9 is fixedly connected in the inner cavity of the groove 8, a limiting end 10 is fixedly connected to one side of the carriage 1, a limiting bolt 11 is threadedly connected in the inner cavity of the limiting end 10, and a wheel 12 is arranged at the bottom of the carriage 1. During transportation, the surface of one side of the box-type cargo fits with the surface of the cylinder 9, so that a gap exists between the two.
[0025] The use method and advantages of the utility model: When the dump trailer is in use, the working process is as follows:
[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when in use, the storage chamber 2 is used to store box-type goods. After moving to the designated location, the staff screws the limit bolt 11 and can screw the limit bolt 11 out from the inside of the limit end 10, thereby releasing the limit on the rear cover 301, and flipping the angle of the rear cover 301 through the hinge 6 to achieve the inclination of the rear cover 301, so that one side of the damper 5 contacts the ground and supports the rear cover 301. The staff pushes the box-type goods onto the rear cover 301 to fit with the surface of the movable plate 306, and starts the transmission motor 303 to drive the screw rod 304 to rotate. When the screw rod 304 rotates, it can drive the movable block 305 with its outer thread sleeve to move, thereby driving the movable plate 306 to move. The box-type goods can move on the inclined rear cover 301 with the movement of the movable plate 306, thereby realizing the unloading of the box-type goods. During transportation, the surface of one side of the box-type goods fits with the surface of the cylinder 9, so that there is a gap between the two.
[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A dump trailer, comprising a carriage (1), characterized in that: A storage chamber (2) is provided at the top of the carriage (1), an auxiliary unloading assembly (3) is provided at one side of the carriage (1), the auxiliary unloading assembly (3) comprises a rear cover (301), the rear cover (301) is movably connected to one side of the carriage (1), a rectangular mounting groove (302) is provided at a side of the rear cover (301) close to the storage chamber (2), a transmission motor (303) is fixedly connected to the top of the rear cover (301), a screw rod (304) is provided in the inner cavity of the rectangular mounting groove (302), one side of the screw rod (304) is fixedly connected to the transmission end of the transmission motor (303), a movable block (305) is threadedly sleeved on the outer side of the screw rod (304), and a movable plate (306) is fixedly connected to the side of the movable block (305) away from the screw rod (304).
2. A dump trailer according to claim 1, characterized in that: A guide plate (307) is fixedly connected to one side of the rear cover (301) close to the storage chamber (2), a slide groove (308) is provided on one side of the guide plate (307), and a side of the movable plate (306) away from the screw rod (304) extends to the inside of the slide groove (308).
3. A dump trailer according to claim 2, characterized in that: The movable plate (306) is slidably connected to the slide groove (308); a fixing member (4) is fixedly connected to the side of the rear cover (301) away from the storage chamber (2); and a damper (5) is fixedly connected to the side of the fixing member (4) away from the rear cover (301).
4. A dump trailer according to claim 1, characterized in that: One side of the carriage (1) is hingedly connected to a hinge (6), and the other side of the hinge (6) is hingedly connected to a rear cover (301).
5. The dump trailer according to claim 1, characterized in that: A mounting plate (7) is fixedly connected to the right side of the bottom of the storage cavity (2), a groove (8) is provided on one side of the mounting plate (7), a cylinder (9) is fixedly connected to the inner cavity of the groove (8), and a limited end (10) is fixedly connected to one side of the carriage (1).
6. A dump trailer according to claim 5, characterized in that: A limiting bolt (11) is threadedly connected in the inner cavity of the limiting end (10), and a wheel (12) is arranged at the bottom of the carriage (1).