Self-dumping semitrailer

Abstract

The utility model relates to the field of self-discharging semitrailers, and discloses a self-discharging semitrailer which comprises a vehicle body, a carriage is arranged at the rear position of the center of the upper end face of the vehicle body, a feeding hopper is arranged at the front position of the center of the upper end face of the carriage, a dust discharging structure is arranged at the center of the upper end face of the vehicle body, and the dust discharging structure comprises a dust discharging frame. The dust discharging frame is arranged at the center of the upper end face of the vehicle body, a draught fan is arranged on the upper portion of the center in the dust discharging frame, three lifting boxes are vertically arranged in the dust discharging frame at the lower end of the draught fan, activated carbon, adsorption cotton and a filter screen are arranged at the centers in the three lifting boxes correspondingly, and a compartment door is rotationally connected to the center of the rear end face of the vehicle body. Rotators are arranged on the rear portions of the upper ends of the two side walls of the vehicle body, a limiting structure is arranged on the rear end face of the vehicle body, and scraping structures are arranged on the upper portions of the centers of the two side walls of the vehicle body. According to the utility model, the filter material is convenient to maintain and replace, the dust discharge effect is ensured, the material waste is reduced, and the transportation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of dump semi-trailers, and in particular to a dump semi-trailer. Background Technology

[0002] Dump semi-trailers are a common type of transportation vehicle, widely used in construction, mining, waste disposal, and other fields. They combine the characteristics of semi-trailers and dump trucks, offering advantages such as large loading capacity, high transportation efficiency, and flexible operation. They are used to transport building materials such as sand, gravel, and concrete. A dump semi-trailer is a semi-trailer connected to a tractor unit via a towing pin, primarily used for transporting bulk goods. Its cargo box design comes in various forms, including side-tipping, rear-tipping, and sliding types.

[0003] Existing dump semi-trailers easily generate a lot of dust during loading and unloading, polluting the environment and harming the health of workers. Materials easily stick to the inner walls of the cargo box, resulting in incomplete unloading and material residue, leading to low transportation efficiency, material waste, and increased subsequent cleaning costs. The cargo box door lacks an effective limiting device, which may open accidentally during transportation, posing a safety hazard and affecting transportation safety. Therefore, those skilled in the art have provided a dump semi-trailer to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a self-unloading semi-trailer. The dust removal frame contains a fan, activated carbon, absorbent cotton, and a filter screen, which can effectively remove dust. The lifting box design facilitates the maintenance and replacement of the filter material, ensuring the dust removal effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-dumping semi-trailer, comprising a vehicle body, a cargo box located at the rear of the center of the upper end face of the vehicle body, a feed hopper located at the front of the center of the upper end face of the cargo box, and a dust removal structure located at the center of the upper end face of the vehicle body.

[0006] The dust removal structure includes a dust removal frame, which is located at the center of the upper surface of the vehicle body. A fan is located at the upper center of the dust removal frame. Three lifting boxes are arranged vertically inside the dust removal frame below the fan. Activated carbon, absorbent cotton, and a filter screen are respectively located at the center of the three lifting boxes.

[0007] A door is rotatably connected to the center of the rear end face of the vehicle body. Rotators are provided at the rear of the upper end of both sides of the vehicle body. A limiting structure is provided on the rear end face of the vehicle body. A scraping structure is provided at the upper center of both sides of the vehicle body.

[0008] The above technical solution effectively removes dust by using a dust removal frame containing a fan, activated carbon, absorbent cotton, and a filter screen. The lifting box design facilitates the maintenance and replacement of the filter material, ensuring the dust removal effect.

[0009] Furthermore, the two scraping structures include two first frames, which are respectively located at the upper center of the side walls of the vehicle body. Each of the two first frames has a first groove at the center of one side wall. Each of the two first frames has a first motor at the center of the front face of the front end ...

[0010] The above technical solution involves starting the first motor, which drives the first lead screw to rotate. The first lead screw then drives the scraper to move inside the carriage, scraping off the material adhering to the inner wall of the carriage. This prevents material residue and ensures that the material inside the carriage can be unloaded as completely as possible, reducing material residue, improving transportation efficiency, and avoiding material waste and impact on subsequent transportation.

[0011] Furthermore, the limiting structure includes two second frames, which are respectively located at the center of the rear end face of the vehicle body on both sides. A second sliding groove is provided at the center of one side wall of each of the two second frames. A second motor is provided at the center of the upper end face of each of the two second frames on one side. The output ends of the two second motors pass through the upper end face of the two second frames and the upper end face of the two second sliding grooves in sequence and extend into the interior of the two second sliding grooves. A second lead screw is fixedly connected to each end of the motor. A limiting block is threaded onto each of the two second lead screws.

[0012] The above technical solution involves starting the second motor, which drives the second lead screw to rotate. The second lead screw then drives the limit block to move up and down. When the door is closed, the limit block can limit and fix the door, preventing it from opening accidentally. This improves the stability and safety of the door when it is closed, ensuring that the door will not open accidentally during transportation and guaranteeing the safety of the transportation.

[0013] Furthermore, the two output ends of the rotary actuators pass through the two side walls of the vehicle body and the two side walls of the door in sequence, leading to the center of the interior of the door;

[0014] The above technical solution allows for convenient and quick control of the opening and closing of the compartment door, improving the efficiency of unloading operations.

[0015] Furthermore, one end of each of the three boxes penetrates the inner front wall of the dust removal frame and extends to the front end face of the dust removal frame;

[0016] The above technical solutions make the maintenance and replacement of filter materials more convenient, improve the sustainable use and maintenance efficiency of the dust removal structure, and ensure that the dust removal effect is always in good condition.

[0017] Furthermore, the scraper is slidably connected inside the two first grooves;

[0018] The above technical solution ensures that the scraper can move stably inside the carriage, effectively scraping off the material adhering to the inner wall of the carriage, reducing material residue, and improving the thoroughness of unloading and transportation efficiency.

[0019] Furthermore, the limiting block is slidably connected inside the two second sliding grooves;

[0020] The above technical solution ensures that the limiting block can be accurately adjusted in position, effectively limiting and fixing the door, improving the stability and safety of the door when it is closed, and preventing the door from opening accidentally during transportation.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the dust removal frame of the dump semi-trailer contains a fan, activated carbon, adsorption cotton and filter screen, which can effectively remove dust. The lifting box design facilitates the maintenance and replacement of the filter material, ensuring the dust removal effect.

[0023] 2. In this utility model, the scraper is moved by the first motor driving the first moving screw to scrape off the material adhering to the inner wall of the carriage, thereby reducing material waste, improving transportation efficiency, and avoiding any impact on subsequent transportation.

[0024] 3. In this utility model, the second motor drives the second lead screw to move the limit block up and down, thereby limiting and fixing the door, which improves the stability and safety of the door when it is closed, ensuring that the door will not be opened accidentally during transportation and ensuring transportation safety. Attached Figure Description

[0025] Figure 1 This is a perspective view of a self-unloading semi-trailer proposed in this utility model;

[0026] Figure 2 This is a three-dimensional sectional view of a self-unloading semi-trailer proposed in this utility model;

[0027] Figure 3 This is a side sectional view of a self-unloading semi-trailer proposed in this utility model;

[0028] Figure 4 This is a front sectional view of a self-dumping semi-trailer proposed in this utility model.

[0029] Legend:

[0030] 1. Car body; 2. Car compartment; 3. Feed hopper; 4. Dust removal structure; 401. Dust removal frame; 402. Fan; 403. Lifting box; 404. Activated carbon; 405. Adsorbent cotton; 406. Filter screen; 5. Rotator; 6. Scraping structure; 601. First frame; 602. First chute; 603. First motor; 604. First lead screw; 605. Scraper; 7. Limiting structure; 701. Second frame; 702. Second chute; 703. Second motor; 704. Second lead screw; 705. Limiting block; 8. Car compartment door. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1-4 This utility model provides an embodiment of a self-unloading semi-trailer, including a vehicle body 1, a cargo box 2 located at the rear center of the upper surface of the vehicle body 1, a feed hopper 3 located at the front center of the upper surface of the cargo box 2, a dust removal structure 4 located at the center of the upper surface of the vehicle body 1, a door 8 rotatably connected to the center of the rear end of the vehicle body 1, a rotator 5 located at the rear upper end of each of the two side walls of the vehicle body 1, a limiting structure 7 located on the rear end of the vehicle body 1, and a scraping structure 6 located at the upper center of each of the two side walls of the vehicle body 1. The output ends of the two rotators 5 pass through the two side walls of the vehicle body 1 and the two side walls of the door 8 to the center of the interior of the door 8, so as to conveniently and quickly control the opening and closing of the door 8 and improve the efficiency of unloading operations.

[0033] The dust removal structure 4 includes a dust removal frame 401, which is located at the center of the upper surface of the vehicle body 1. A fan 402 is located near the upper center of the dust removal frame 401. Below the fan 402, three lifting boxes 403 are arranged vertically inside the dust removal frame 401. Activated carbon 404, absorbent cotton 405, and a filter screen 406 are respectively located at the center of each of the three lifting boxes 403. When materials enter the vehicle compartment 2, dust and other impurities are generated. The fan 402 is activated, generating suction that draws the dust-laden air into the dust removal frame 401. The air then passes through… Larger particles are filtered by filter screen 406, fine particles are adsorbed by absorbent cotton 405, and harmful substances are further adsorbed by activated carbon 404 before being discharged, thus achieving the purpose of purifying the air. The three lifting boxes 403 can be easily removed for cleaning or replacement of the internal filter materials. One end of each of the three lifting boxes 403 passes through the front inner wall of the dust removal frame 401 and leads to the front end face of the dust removal frame 401, making the maintenance and replacement of the filter materials more convenient, improving the sustainable use and maintenance efficiency of the dust removal structure 4, and ensuring that the dust removal effect is always maintained in good condition.

[0034] The two scraping structures 6 include two first frames 601, which are respectively located at the upper center of the side walls of the vehicle body 1. Each of the two first frames 601 has a first groove 602 at the center of one side wall. Each of the two first frames 601 has a first motor 603 located at the center of its front face. The output ends of the two first motors 603 pass through the front faces of the two first frames 601 and the front faces of the two first grooves 602, respectively, and are connected to the interior of the two first grooves 602. Each end is fixedly connected to a first lead screw 604. Scraper plates 605 are threaded onto the outer walls of the two first lead screws 604. The scraping is controlled by the first motors 603. 03. Start-up drives the first lead screw 604 to rotate, which in turn drives the scraper 605 to move inside the carriage 2, scraping off the material adhering to the inner wall of the carriage 2 to prevent material residue. This ensures that the material in the carriage 2 can be unloaded as completely as possible, reducing material residue and improving transportation efficiency. At the same time, it avoids material waste and impact on subsequent transportation. The scraper 605 is slidably connected inside the two first chute 602, ensuring that the scraper 605 can move stably inside the carriage 2, effectively scraping off the material adhering to the inner wall of the carriage 2, reducing material residue, and improving the thoroughness of unloading and transportation efficiency.

[0035] like Figure 3 As shown, the limiting structure 7 includes two second frames 701, which are respectively located on both sides of the center of the rear end face of the vehicle body 1. Each of the two second frames 701 has a second sliding groove 702 at the center of one side wall. Each of the two second frames 701 has a second motor 703 located on one side of the center of its upper end face. The output ends of the two second motors 703 pass through the upper end faces of the two second frames 701 and the upper end faces of the two second sliding grooves 702, respectively, and are connected to the interior of the two second sliding grooves 702. Each end of the motor is fixedly connected to a second lead screw 704. The two second lead screws 704 are threaded with limiting blocks 705, and are activated by the second motors 703. The second lead screw 704 rotates, which in turn drives the limiting block 705 to move up and down. When the door 8 is closed, the limiting block 705 can limit and fix the door 8, preventing it from opening accidentally. This improves the stability and safety of the door 8 when it is closed, ensuring that the door 8 will not open accidentally during transportation and guaranteeing transportation safety. The limiting block 705 is slidably connected inside the two second slide grooves 702, ensuring that the limiting block 705 can be accurately adjusted to effectively limit and fix the door 8, improving the stability and safety of the door 8 when it is closed and preventing it from opening accidentally during transportation.

[0036] Working principle: Materials enter the interior of the carriage 2 from the feed hopper 3 for storage. During this process, the fan 402 is activated to generate suction, drawing dust-laden air into the dust removal frame 401. The air then passes through the filter screen 406 in the lifting box 403 to filter larger particles, the absorbent cotton 405 to absorb fine particles, and the activated carbon 404 to further absorb harmful substances before being discharged, thus purifying the air. When the carriage 1 carries the carriage 2 containing materials for transportation, the rotary device 5 drives the door 8 to rotate and close. The second motor 703 is activated, driving the second lead screw 704 to rotate. The second lead screw 704 drives the limit block 705 to move downwards. The limit block 705 can limit and fix the door 8, preventing the door 8 from opening accidentally. This improves the stability and safety of the door 8 when closing, ensuring that the door 8 will not open accidentally during transportation and guaranteeing transportation safety.

[0037] Furthermore, during unloading, the second motor 703 is started, driving the second lead screw 704 to rotate. The second lead screw 704 drives the limit block 705 to move upward, and the rotary device 5 drives the door 8 to rotate and open. At the same time, the first motor 603 is started, driving the first lead screw 604 to rotate. The first lead screw 604 drives the scraper 605 to move inside the carriage 2, scraping off the material adhering to the inner wall of the carriage 2 to prevent material residue. This ensures that the material in the carriage 2 can be unloaded as completely as possible, reducing material residue, improving transportation efficiency, and avoiding material waste and impact on subsequent transportation.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-discharging semi-trailer comprising a vehicle body (1), characterised in that: The upper end face center of the vehicle body (1) is provided with a carriage (2), the upper end face center of the carriage (2) is provided with a feed hopper (3), and the upper end face center of the vehicle body (1) is provided with a dust removal structure (4); The dust removal structure (4) comprises a dust removal frame (401) arranged at the upper end face center of the vehicle body (1), a fan (402) arranged at the upper end face center of the vehicle body (1), and three lifting boxes (403) arranged in the lower end of the dust removal frame (401) in a vertical arrangement. The rear end face center of the vehicle body (1) is rotatably connected with a door (8), the upper rear end of the two side walls of the vehicle body (1) is provided with a rotator (5), the rear end face of the vehicle body (1) is provided with a limiting structure (7), and the center of the upper side wall of the vehicle body (1) is provided with a scraping structure (6).

2. A self-discharging semi-trailer according to claim 1, characterised in that: The two scraping structures (6) comprise two first frames (601) arranged at the center of the upper side wall of the vehicle body (1), a first sliding groove (602) arranged at the center of one side wall of the two first frames (601), a first motor (603) arranged at the center of one side of the front end face of the two first frames (601), and a first screw rod (604) fixedly connected to the output end of the first motor (603).

3. A self-discharging semi-trailer according to claim 1, characterized in that: The limiting structure (7) comprises two second frames (701) arranged at the center of the rear end face of the vehicle body (1), a second sliding groove (702) arranged at the center of one side wall of the two second frames (701), a second motor (703) arranged at the center of one side of the upper end face of the two second frames (701), and a second screw rod (704) fixedly connected to the output end of the second motor (703).

4. A self-discharging semi-trailer according to claim 1, characterized in that: The output end of the two rotators (5) penetrates the two side walls of the vehicle body (1) and the two side walls of the door (8) in sequence and reaches the center of the inside of the door (8).

5. A self-unloading semi-trailer according to claim 1, characterized in that: One end of the three lifting boxes (403) penetrates the front inner wall of the dust removal frame (401) and reaches the front end face of the dust removal frame (401).

6. A self-discharging semi-trailer according to claim 2, characterised in that: The scraping plate (605) is slidingly connected in the two first sliding grooves (602).

7. A self-discharging semi-trailer according to claim 3, characterised in that: The limiting block (705) is slidingly connected in the two second sliding grooves (702).

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