Garbage truck container system and cover seam sealing method

Abstract

The application discloses a garbage transport vehicle container system and a cover opening and joint sealing method. The system comprises a container, a loading butt joint frame arranged on the top of the container, a garbage loading port and a sealing cover arranged on the top of the container, a rectangular elastic sealing ring arranged on the top of the container and located on the outside of the garbage loading port, a sliding support arranged on the top of the container, a driving mechanism for driving the sliding support to lift and a positioning and lifting guide structure for positioning and lifting guiding the sliding support. In the process of opening or closing the sealing cover, the sealing cover horizontally slides on the top surface of the sliding support, and the sealing cover does not horizontally slide on the top surface of the rectangular elastic sealing ring, so that the friction damage problem of the rectangular elastic sealing ring is avoided.

Description

Technical Field

[0001] This invention relates to the field of municipal solid waste transport vehicle technology, and in particular to a cargo box sealing device for a waste transport vehicle. Background Technology

[0002] The cargo box of the garbage truck is equipped with a garbage loading port. In order to prevent the odor emitted by the garbage from leaking out of the loading port and polluting the air, the garbage loading port must be well sealed during transportation.

[0003] To address the issue of inadequate sealing of the horizontally sliding sealing caps on existing garbage truck cargo boxes, the applicant previously filed an invention patent with application number 2024226413692, entitled "Sealing Device for Loading Opening of Garbage Truck Cargo Box." This patent utilizes a beveled structure on the rectangular inner cover and rectangular frame opening to achieve a tight fit between the rectangular inner cover and the rectangular elastic sealing ring, ensuring a sealing effect. However, in this technical solution, the rectangular inner cover needs to slide a certain distance on one end of the rectangular elastic sealing ring during opening and closing, which can cause frictional wear on the rectangular elastic sealing ring, thus affecting its service life.

[0004] Furthermore, existing cargo containers with garbage compression functions have exhaust vents on the top of the container to prevent gas from obstructing the movement of the garbage as the compression mechanism pushes the garbage towards the rear. However, direct emission of odor into the atmosphere causes air pollution. In the applicant's earlier application (application number 202410969557X), entitled "Environmentally Friendly Loading Method and System for Household Waste," a technical solution was disclosed that uses a garbage loading funnel and a sealing sleeve to guide household waste into the cargo container and extract odor from the funnel for deodorization. This patent ensures that odor from the cargo container is not directly emitted into the atmosphere during loading, thus avoiding air pollution. However, how to ensure that the gas at the rear of the container flows smoothly into the loading funnel during the compression mechanism's push-plate movement of the garbage towards the rear is a technical problem that needs to be solved. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a garbage truck cargo box system to solve the technical problem that the horizontal push-pull opening and closing of the sealing cover requires sliding on the rectangular elastic sealing ring during the opening and closing process, which affects the service life of the rectangular elastic sealing ring; and to solve the technical problem that setting an exhaust hole on the top of the cargo box will cause air pollution by directly emitting odors from inside the cargo box into the atmosphere.

[0006] The present invention relates to a garbage truck cargo box system, comprising a cargo box, a loading docking frame on the top of the cargo box, a garbage loading opening located inside the loading docking frame, a sealing cover for sealing the garbage loading opening, and a first linear actuator for driving the sealing cover to move along the front-rear direction of the cargo box.

[0007] The first linear actuator is movably connected to the sealing cover in the vertical direction and fixedly connected in the horizontal direction;

[0008] A rectangular elastic sealing ring is provided on the top of the cargo box, and the rectangular elastic sealing ring is located on the outside of the garbage loading port;

[0009] The top of the cargo box is also provided with a sliding support body that supports the sealing cover during the sliding process, a drive mechanism that drives the sliding support body to rise and fall, and a positioning and guiding structure that positions and guides the sliding support body. The sliding support body is located outside the rectangular elastic sealing ring.

[0010] When the sliding support is raised to its highest position, the sealing cap presses against the top surface of the sliding support, and the top surface of the sliding support is higher than the top surface of the rectangular elastic sealing ring; when the sliding support is lowered to its lowest position, the sealing cap presses against the top surface of the rectangular elastic sealing ring, and the top surface of the sliding support is lower than the top surface of the rectangular elastic sealing ring.

[0011] Furthermore, the drive mechanism is arranged on both sides of the sliding support body along the front-to-back direction of the cargo box. The drive mechanism includes a wedge, a second linear actuator that drives the wedge to move along the front-to-back direction of the cargo box, and an inclined surface that is disposed on the lower side of the end of the sliding support body and cooperates with the wedge.

[0012] Furthermore, the positioning guide structure is a limiting strip arranged along the inner and / or outer side of the sliding support.

[0013] Furthermore, a connection hole is provided on the edge of the sealing cover, and a vertical insertion rod connected to the connection hole is provided on the first linear driver.

[0014] Furthermore, the front of the cargo box is provided with a push plate for pushing the garbage inside the cargo box to the rear of the cargo box and a third linear actuator for driving the push plate to move. The top of the cargo box is also provided with a guide channel for guiding the gas at the rear of the cargo box to the garbage loading port. The guide channel is formed by a guide plate with air inlet or a guide pipe with air inlet connected to the top of the cargo box.

[0015] Furthermore, the garbage truck cargo box system also includes a sealing structure for closing the gap between the top of the front end of the sealing cover and the loading docking frame when the cover is open. The sealing structure includes a front stop bar fixed to the top of the front end of the cover, a sealing strip fixed next to the stop bar, and a rear stop bar set at the top of the lateral insertion port on the loading docking frame.

[0016] The sealing method for the opening of the garbage truck cargo box system described in this invention includes: during the opening process, the sliding support body is first driven by the drive mechanism to move upward and lift the sealing cover, and then the first linear drive drives the sealing cover to slide open the garbage loading port. After the sealing cover is opened to the position, the sealing strip is pressed between the front and rear baffles, thereby sealing the gap between the top of the front end of the sealing cover and the loading docking frame.

[0017] The beneficial effects of this invention are:

[0018] 1. In the garbage truck cargo box system of this invention, during the opening or closing of the sealing cover, the sealing cover slides horizontally on the top surface of the sliding support body, and the sealing cover does not contact the rectangular elastic sealing ring, thereby avoiding frictional damage to the rectangular elastic sealing ring. When closing the sealing cover, after the sealing cover slides horizontally into place, it retracts, causing the sliding support body to descend. Under the action of gravity, the sealing cover presses firmly against the rectangular elastic sealing ring, thereby achieving a seal on the garbage loading opening and preventing the problem of odor leakage and air pollution during transportation.

[0019] 2. The garbage truck cargo box system of this invention, by setting a guide channel below the top of the cargo box to direct the gas at the rear of the cargo box to the garbage loading port, allows the gas at the rear of the cargo box to flow to the garbage loading port through the guide channel during the backward compression of domestic waste by the push plate, thus avoiding the problem of gas at the rear of the cargo box obstructing the backward movement of garbage. The odor then enters the loading funnel connected to the garbage loading port, and the odor in the loading funnel is then extracted and deodorized by an exhaust device, thereby avoiding the technical problem of odor from the cargo box being directly emitted into the atmosphere and causing air pollution.

[0020] 3. The garbage truck cargo box system and the sealing method for the opening of the cover of the present invention can seal the gap between the top front end of the sealing cover and the loading docking frame when the cover is open. This ensures that during the loading process when the cargo box is docked with the garbage loading funnel, the odor in the cargo box will not escape into the atmosphere from the gap between the top front end of the sealing cover and the loading docking frame, thus further improving the environmental friendliness of the loading process. Attached Figure Description

[0021] Figure 1 This is a top-view schematic diagram of the cargo box system of a garbage truck.

[0022] Figure 2 This is a top view of the garbage truck cargo box system after removing the loading docking frame.

[0023] Figure 3 for Figure 1 Schematic diagram of cross section along AA.

[0024] Figure 4 for Figure 3 A schematic diagram showing the middle wedge block inserted below the inclined surface of the sliding support.

[0025] Figure 5 for Figure 3 A magnified view of section P in the middle.

[0026] Figure 6 for Figure 4 A magnified view of section K in the middle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] In this embodiment, the garbage truck cargo box system includes a cargo box 1. The top of the cargo box is provided with a loading docking frame 2, a garbage loading opening 3 located inside the loading docking frame, a sealing cover 4 for sealing the garbage loading opening, and a first linear actuator 5 for driving the sealing cover to move along the front-to-back direction of the cargo box. The rear end of the loading docking frame is provided with a lateral insertion port for inserting the sealing cover. In this embodiment, the first linear actuator 5 can be a pneumatic cylinder, hydraulic cylinder, electric cylinder, chain conveyor mechanism, etc.; in this embodiment, a hydraulic cylinder is used. The loading docking frame 2 is used to dock with the loading funnel that guides the garbage into the cargo box during garbage loading.

[0029] The first linear actuator and the sealing cover are movably connected in the vertical direction and fixedly connected in the horizontal direction. Specifically, in this embodiment, the sealing cover has a connecting hole 6 on its edge, and the telescopic rod of the hydraulic cylinder has a vertical insertion rod 7 that connects to the connecting hole. The vertical insertion rod 7 and the connecting hole 6 slide vertically together to achieve the connection method in which the first linear actuator and the sealing cover are movably connected in the vertical direction and fixedly connected in the horizontal direction.

[0030] A rectangular elastic sealing ring 8 is fixedly installed on the top of the cargo box, and the rectangular elastic sealing ring is located on the outside of the garbage loading port.

[0031] The top of the cargo box is also equipped with a sliding support body 9 that supports the sealing cover during the sliding process, a drive mechanism for driving the sliding support body to rise and fall, and a positioning and guiding structure for positioning and guiding the sliding support body. The sliding support body is located outside the rectangular elastic sealing ring and inside the mating frame. In this embodiment, the sliding support body is a rectangular frame. Of course, in different embodiments, the sliding support body can also be four strip guide rails arranged in a rectangular shape or two strip guide rails arranged along the length of the cargo box. In this embodiment, the drive mechanism is arranged on both sides of the sliding support body along the front-to-back direction of the cargo box. The drive mechanism includes a wedge block 10, a second linear actuator 11 that drives the wedge block to move along the front-to-back direction of the cargo box, and an inclined surface 12 disposed on the lower side of the end of the sliding support body and cooperating with the wedge block. The second linear actuator 11 can be a cylinder, a hydraulic cylinder, an electric cylinder, etc. In this embodiment, a hydraulic cylinder is used. When the second linear actuator 11 pushes the wedge 10 to wedge below the inclined plane 12, the sliding support 9 is lifted upward by the wedge 10; when the second linear actuator 11 pulls the wedge 10 out from below the inclined plane 12, the sliding support 9 descends under the action of gravity. In this embodiment, the positioning guide structure is a limiting strip 13 arranged along the inner and outer sides of the sliding support. Of course, in different embodiments, the limiting strip 13 may only be arranged along the inner or outer sides of the sliding support. The positioning guide structure may also be a limiting pin that is vertically inserted through the rectangular frame or the limiting strip 13 and slides up and down with it.

[0032] When the sliding support is raised to its highest position, the sealing cap presses against the top surface of the sliding support, and the top surface of the sliding support is higher than the top surface of the rectangular elastic sealing ring; when the sliding support is lowered to its lowest position, the sealing cap presses against the top surface of the rectangular elastic sealing ring, and the top surface of the sliding support is lower than the top surface of the rectangular elastic sealing ring.

[0033] In this embodiment of the garbage truck cargo box system, during the closing of the sealing cover, the second linear actuator 11 first pushes the wedge block 10 to wedge below the inclined plane 12 to lift the sliding support body 9. Then, the first linear actuator drives the sealing cover 4 to slide forward. During the sliding process, the sealing cover 4 does not contact the rectangular elastic sealing ring, thus avoiding damage to the rectangular elastic sealing ring. After the sealing cover 4 slides into place, the second linear actuator 11 pulls the wedge block 10 to exit from below the inclined plane 12. At this time, the sealing cover 4 and the sliding support body 9 descend. Under the action of gravity, the sealing cover 4 presses on the rectangular elastic sealing ring, thereby sealing the garbage loading port 3.

[0034] As an improvement to the above embodiment, the front of the cargo box is provided with a pusher plate 14 for pushing the garbage inside the cargo box towards the rear of the cargo box and a third linear actuator 15 for driving the pusher plate. A guide channel 16 is also provided below the top of the cargo box for guiding the gas at the rear of the cargo box towards the garbage loading port. The guide channel is formed by a guide plate 17 with air inlets or a guide pipe with air inlets connected to the bottom of the top of the cargo box. By squeezing the domestic waste in the cargo box with the pusher plate, the garbage loading capacity can be increased. During the squeezing process, the gas at the rear of the cargo box flows to the garbage loading port through the guide channel 16, which avoids the problem of the gas at the rear of the cargo box obstructing the rearward movement of the garbage.

[0035] As an improvement to the above embodiments, the garbage truck cargo box system further includes a sealing structure for closing the gap between the top of the front end of the sealing cover and the loading docking frame when the cover is open. The sealing structure includes a front baffle 18 fixed to the top of the front end of the cover, a sealing strip 19 fixed next to the baffle, and a rear baffle 20 set at the top of the lateral insertion port on the loading docking frame.

[0036] The sealing method for the opening of the garbage truck cargo box system in this embodiment includes: during the opening process, the sliding support body is first driven by the drive mechanism to move upward and lift the sealing cover, and then the first linear drive drives the sealing cover to slide open the garbage loading port. After the sealing cover is opened to the position, the sealing strip is pressed between the front and rear baffles, thereby sealing the gap between the top of the front end of the sealing cover and the loading docking frame.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A garbage truck cargo box system, comprising a cargo box, the top of which is provided with a loading docking frame, a garbage loading opening located inside the loading docking frame, a sealing cover for sealing the garbage loading opening, and a first linear actuator for driving the sealing cover to move in the front-rear direction of the cargo box; the rear end of the loading docking frame is provided with a lateral insertion port for inserting the sealing cover, characterized in that: The first linear actuator is movably connected to the sealing cover in the vertical direction and fixedly connected in the horizontal direction; A rectangular elastic sealing ring is provided on the top of the cargo box, and the rectangular elastic sealing ring is located on the outside of the garbage loading port; The top of the cargo box is also provided with a sliding support body that supports the sealing cover during the sliding process, a drive mechanism that drives the sliding support body to rise and fall, and a positioning and guiding structure that positions and guides the sliding support body. The sliding support body is located outside the rectangular elastic sealing ring. The sliding support is a rectangular frame or a strip guide rail; the driving mechanism is arranged on both sides of the sliding support along the front-to-back direction of the cargo box, and the driving mechanism includes a wedge, a second linear actuator that drives the wedge to move along the front-to-back direction of the cargo box, and an inclined surface that cooperates with the wedge on the lower side of the end of the sliding support. When the sliding support is raised to its highest position, the sealing cap presses against the top surface of the sliding support, and the top surface of the sliding support is higher than the top surface of the rectangular elastic sealing ring; when the sliding support is lowered to its lowest position, the sealing cap presses against the top surface of the rectangular elastic sealing ring, and the top surface of the sliding support is lower than the top surface of the rectangular elastic sealing ring.

2. The garbage truck cargo box system according to claim 1, characterized in that: The positioning and guiding structure is a limiting strip arranged along the inner and / or outer side of the sliding support.

3. The garbage truck cargo box system according to claim 1, characterized in that: The sealing cover has a connection hole on its edge, and the first linear actuator has a vertical insertion rod that connects to the connection hole.

4. The garbage truck cargo box system according to claim 1, characterized in that: The front of the cargo box is provided with a push plate for pushing the garbage inside the cargo box to the rear of the cargo box and a third linear actuator for driving the push plate. The top of the cargo box is also provided with a guide channel for guiding the gas at the rear of the cargo box to the garbage loading port. The guide channel is formed by a guide plate with air inlet or a guide pipe with air inlet connected to the top of the cargo box.

5. The garbage truck cargo box system according to claim 1, characterized in that: It also includes a sealing structure for closing the gap between the top of the front end of the sealing cover and the loading docking frame when the cover is open. The sealing structure includes a front stop strip fixed to the top of the front end of the sealing cover, a sealing strip fixed next to the front stop strip, and a rear stop strip set at the top of the lateral insertion port on the loading docking frame.

6. The sealing method for the opening seam of the garbage truck cargo box system according to claim 5, characterized in that: include: During the opening process, the sliding support body is first driven by the drive mechanism to move upward and lift the sealing cover. Then, the first linear drive drives the sealing cover to slide open the garbage loading port. After the sealing cover is opened in place, the sealing strip is pressed between the front and rear baffles, thereby sealing the gap between the top of the front end of the sealing cover and the loading docking frame.

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