Sealing cover structure for compression type garbage truck filling device

Abstract

The utility model relates to the technical field of garbage trucks, in particular to a sealing cover structure for a filling device of a compression garbage truck, which is provided with a first sealing cover, a second sealing cover and a telescopic rotating mechanism, when a user needs to open an opening, the first sealing cover and the second sealing cover rise relative to a shell of the filling device; under the action of hinging of the first sealing cover and the second sealing cover, the side, away from the first sealing cover, of the second sealing cover faces the opening, so that when the opening is large, the overall height of the first sealing cover and the second sealing cover is small, and the problem that when a precompressor on an existing garbage truck is provided with the sealing cover for sealing the opening, when garbage needs to be loaded and transported, the sealing cover cannot be arranged is effectively solved. The problems that the sealing cover is lifted relative to the garbage truck, however, due to the fact that the size of the sealing cover is large, when a large opening is needed, the sealing cover must be lifted to a high position, so that the sealing cover is prone to colliding with surrounding obstacles such as branches, and the sealing cover is damaged are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a garbage truck technical field, concretely is a kind of sealing cover structure for compression type garbage truck filling device. BACKGROUND

[0002] With the acceleration of urbanization and the improvement of environmental awareness, as a kind of efficient garbage collection and processing equipment, compression type garbage truck gradually becomes an important part of urban environmental sanitation system. Compression type garbage truck can compress garbage in the process of loading garbage through built-in compression device, significantly increase load weight and volume, thereby reducing transportation frequency, reducing operating cost and improving work efficiency.

[0003] In the setting of existing compression type garbage truck, filling device is an important component, filling device is usually provided with an opening to facilitate user to fill garbage into the inside, in order to close the opening, filling device is also provided with sealing cover, when needing to load and transport garbage, sealing cover will be lifted relative to garbage truck to open the opening, however, since sealing cover is bulky, when needing larger opening, sealing cover must be lifted to a higher position, in this process, sealing cover is prone to collide with surrounding branches and other obstacles, leading to sealing cover damage.

[0004] The utility model is just for the deficiency of prior art and research. INVENTION CONTENTS

[0005] For the above-mentioned filling device on existing garbage truck to set sealing cover to close opening, when needing to load and transport garbage, sealing cover is lifted relative to garbage truck, however, since sealing cover is bulky, when needing larger opening, sealing cover must be lifted to a higher position, so that sealing cover is prone to collide with surrounding branches and other obstacles, leading to sealing cover damage, the technical scheme adopted by the utility model to solve its technical problems is:

[0006] A sealing cover structure for compression type garbage truck filling device, comprising a filling device shell, the filling device shell is provided with opening and sealing cover assembly, the sealing cover assembly comprises first sealing cover hinged with the filling device shell, second sealing cover hinged with the first sealing cover, and telescopic rotating mechanism connected with the first sealing cover and second sealing cover respectively, when the telescopic rotating mechanism drives the first sealing cover and second sealing cover to move relative to the filling device shell to open the opening, the side of the second sealing cover away from the first sealing cover is towards the opening.

[0007] Further, the telescopic rotating mechanism includes driving telescopic mechanism, one side of the driving telescopic mechanism is hinged with the filling device shell, the other side of the driving telescopic mechanism is hinged with the first sealing cover.

[0008] Further, the driving telescopic mechanism comprises a driving cylinder, a telescopic rod connected with the output end of the driving cylinder, a joint and a mounting base, the driving cylinder is hinged to the filler housing through the mounting base, and the telescopic rod is hinged to the first sealing cover through the joint away from the driving cylinder.

[0009] Further, the telescopic rotating mechanism comprises a connecting rod rotating mechanism, one side of the connecting rod rotating mechanism is hinged to the filler housing, and the other side of the connecting rod rotating mechanism is hinged to the second sealing cover.

[0010] Further, the connecting rod rotating mechanism comprises a connecting rod, a first connecting shaft base connected with the filler housing, a second connecting shaft base connected with the second sealing cover and a composite bushing, and the connecting rod is hinged to the first connecting shaft base and the second connecting shaft base through the composite bushing.

[0011] Further, a hinge part is arranged between the first sealing cover and the second sealing cover, and the first sealing cover is hinged to the second sealing cover through the hinge part.

[0012] Further, the hinge part comprises a first connecting surface connected with the first sealing cover and a second connecting surface connected with the second sealing cover, when the driving cylinder drives the telescopic rod to drive the first sealing cover to move relative to the filler housing, the side, close to the second sealing cover, of the first sealing cover is away from the opening, and the first connecting surface and the second connecting surface form an included angle α, 45° ≤ included angle α ≤ 60°, and the central axis of the telescopic rod is located in the included angle α.

[0013] Further, the first sealing cover is arranged in an arc shape, and the inclination angle of the first sealing cover is the same as the inclination angle of the outer side wall of the filler housing.

[0014] Further, the side, away from the first sealing cover, of the second sealing cover is connected with a rubber plate, the side, close to the rubber plate, of the filler housing is hingedly provided with a feeding mechanism, and the feeding mechanism can be flipped relative to the filler housing towards the opening.

[0015] Further, the telescopic rod has a self-locking structure for limiting the contraction of the telescopic rod.

[0016] The utility model discloses the following beneficial effects:

[0017] This invention, by setting up a first sealing cover, a second sealing cover, and a telescopic rotating mechanism, allows the first and second sealing covers to rise relative to the loader housing when the telescopic rotating mechanism drives them to move relative to the loader housing to open the opening. Under the hinged action of the first and second sealing covers, the side of the second sealing cover away from the first sealing cover faces the opening. This ensures that when the opening is large, the overall height of the first and second sealing covers is low, thereby reducing the risk of collision with branches or other obstacles above. This effectively solves the problem of existing garbage truck loader systems using sealing covers to close the opening. When garbage needs to be loaded, the sealing covers rise relative to the garbage truck; however, due to their large size, when a larger opening is required, the sealing covers must rise to a high position, making them prone to collision with surrounding branches and other obstacles, leading to damage.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the sealing cap assembly of this utility model in the open state;

[0020] Figure 2 This is a schematic diagram of the sealing cap assembly in the closed state of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the sealing cap assembly of this utility model in the closed state;

[0022] Figure 4 for Figure 1 An enlarged view of section B marked thereon;

[0023] Figure 5 for Figure 3 An enlarged view of section C marked thereon;

[0024] Figure 6 This is a schematic diagram of the linkage rotation mechanism of this utility model;

[0025] Figure 7 This is a cross-sectional schematic diagram of the linkage rotation mechanism of this utility model;

[0026] Figure 8 This is the second structural schematic diagram of the sealing cap assembly of this utility model in the open state. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 8The diagram shows a sealing cover structure for a compactor garbage truck loader, including a loader housing 1. The loader housing 1 has an opening 2 and a sealing cover assembly 3. The sealing cover assembly 3 includes a first sealing cover 31 hinged to the loader housing 1, a second sealing cover 32 hinged to the first sealing cover 31, and a telescopic rotation mechanism 33 connected to the first sealing cover 31 and the second sealing cover 32 respectively. When the telescopic rotation mechanism 33 drives the first sealing cover 31 and the second sealing cover 32 to move relative to the loader housing 1 to open the opening 2, the side of the second sealing cover 32 away from the first sealing cover 31 faces the opening 2.

[0029] This invention, by setting up a first sealing cover, a second sealing cover, and a telescopic rotating mechanism, allows the first and second sealing covers to rise relative to the loader housing when the telescopic rotating mechanism drives them to move relative to the loader housing to open the opening. Under the hinged action of the first and second sealing covers, the side of the second sealing cover away from the first sealing cover faces the opening. This ensures that when the opening is large, the overall height of the first and second sealing covers is low, thereby reducing the risk of collision with branches or other obstacles above. This effectively solves the problem of existing garbage truck loader systems using sealing covers to close the opening. When garbage needs to be loaded, the sealing covers rise relative to the garbage truck; however, due to their large size, when a larger opening is required, the sealing covers must rise to a high position, making them prone to collision with surrounding branches and other obstacles, leading to damage.

[0030] Optionally, in some embodiments, the telescopic rotation mechanism 33 includes a hydraulic cylinder and a rotary joint. One end of the hydraulic cylinder is fixedly disposed on the filler housing 1, and the other end of the hydraulic cylinder is connected to the first sealing cover 31 and the second sealing cover 32 respectively through the rotary joint. When the hydraulic cylinder extends, the first sealing cover 31 and the second sealing cover 32 rise simultaneously relative to the filler housing 1. One end of the first sealing cover 31 is hinged to the filler housing 1, and the other end of the first sealing cover 31 is hinged to the second sealing cover 32. The side of the first sealing cover 31 that is hinged to the second sealing cover 32 flips and rises around the side of the first sealing cover 31 that is hinged to the filler housing 1. The side of the second sealing cover 32 that is hinged to the first sealing cover 31 rises synchronously. The side of the second sealing cover 32 away from the first sealing cover 31 faces the opening 2, so that when the first sealing cover 31 and the second sealing cover 32 rise to their highest height, the overall height of the first sealing cover 31 and the second sealing cover 32 is relatively low.

[0031] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the telescopic rotation mechanism 33 includes a drive telescopic mechanism 331 and a connecting rod rotation mechanism 332. One end of the drive telescopic mechanism 331 is hinged to the filler housing 1, and the other end of the drive telescopic mechanism 331 is hinged to the first sealing cover 31. One end of the connecting rod rotation mechanism 332 is hinged to the filler housing 1, and the other end of the connecting rod rotation mechanism 332 is hinged to the second sealing cover 32. When the drive telescopic mechanism 331 extends, it drives the first sealing cover 31 to rise, and the first sealing cover 31 drives the second sealing cover 32 to rise synchronously. Under the action of mutual forces, the drive telescopic mechanism... 331 swings from the horizontal to the vertical, thereby causing the first sealing cover 31 to rise vertically. The first sealing cover 31 flips and rises around the side hinged to the filling device housing 1. During the rise, the second sealing cover 32 drives the linkage rotation mechanism 332 to swing relative to the filling device housing 1. The linkage rotation mechanism 332 can limit the movement trajectory of the second sealing cover 32. One end of the second sealing cover 32 rises synchronously with the first sealing cover 31, and the other end of the second sealing cover 32 faces the opening 2, so that when the first sealing cover 31 and the second sealing cover 32 rise to their highest height, the overall height of the first sealing cover 31 and the second sealing cover 32 is relatively low.

[0032] Furthermore, the side of the first sealing cover 31 away from the second sealing cover 32 is hinged to the device housing 1 via a hinge.

[0033] Furthermore, in the closed state, the first sealing cover 31 and the second sealing cover 32 work together to seal the opening 2.

[0034] like Figures 1 to 8 The telescopic rotation mechanism 33 shown includes a drive telescopic mechanism 331, one side of which is hinged to the filler housing 1, and the other side of which is hinged to the first sealing cover 31.

[0035] Furthermore, the hinged connection ensures that the connection between the drive telescopic mechanism 331 and the filler housing 1 and the first sealing cover 31 is both firm and flexible, allowing the drive telescopic mechanism 331 to move relative to each other within a certain range while maintaining the overall stability of the structure.

[0036] Furthermore, by means of hinge, the drive telescopic mechanism 331 is allowed to rotate to a certain extent while telescopically extending and retracting, thereby driving the first sealing cover 31 to rise and flip in a more flexible manner.

[0037] Furthermore, by means of hinge, the drive telescopic mechanism 331 can be arranged more compactly between the filler housing 1 and the first sealing cover 31, which helps to reduce space occupation and make the structure of the entire filler more compact and reasonable.

[0038] like Figures 1 to 8 The drive telescopic mechanism 331 shown includes a drive cylinder 3311, a telescopic rod 3312 connected to the output end of the drive cylinder 3311, a connector 3313, and a mounting base 3314. The drive cylinder 3311 is hinged to the filler housing 1 through the mounting base 3314, and the side of the telescopic rod 3312 away from the drive cylinder 3311 is hinged to the first sealing cover 31 through the connector 3313.

[0039] Furthermore, the drive cylinder 3311, as a power source, can provide a stable and controllable driving force, which helps to ensure that the telescopic rod 3312 moves smoothly and accurately. The telescopic rod 3312 is hinged to the first sealing cover 31 through the joint 3313, thereby driving the first sealing cover 31 to move relative to the filler housing 1, which helps to improve the stability of the movement of the first sealing cover 31.

[0040] Furthermore, the connector 3313 serves as the connection point between the telescopic rod 3312 and the first sealing cover 31, allowing the telescopic rod 3312 and the first sealing cover 31 to rotate and swing to a certain extent, thereby improving the flexibility and adaptability of the device.

[0041] Furthermore, the mounting base 3314 not only provides stable support for the drive cylinder 3311, but also connects to the filler housing 1 via a hinge, making the installation of the drive cylinder 3311 more convenient.

[0042] like Figures 1 to 8 The telescopic rotation mechanism 33 shown includes a linkage rotation mechanism 332, one side of which is hinged to the filler housing 1, and the other side of which is hinged to the second sealing cover 32;

[0043] Furthermore, the linkage rotation mechanism 332 can limit the movement trajectory of the second sealing cover 32, preventing the second sealing cover 32 from deviating from the predetermined path during the rising process, which helps to ensure that the second sealing cover 32 can rise smoothly and orderly to the designated position.

[0044] Furthermore, since the linkage rotation mechanism 332 is hinged to the filler housing 1 and the second sealing cover 32 respectively, the linkage rotation mechanism 332 can allow the second sealing cover 32 to tilt to a certain extent during the upward movement, so as to adapt to the movement trajectory of the first sealing cover 31 and maintain the coordinated movement of the first sealing cover 31 and the second sealing cover 32.

[0045] like Figures 1 to 8The linkage rotation mechanism 332 shown includes a linkage 3321, a first connecting shaft seat 3322 connected to the filler housing 1, a second connecting shaft seat 3323 connected to the second sealing cover 32, and a composite liner 3324. The linkage 3321 is hinged to the first connecting shaft seat 3322 and the second connecting shaft seat 3323 respectively through the composite liner 3324.

[0046] Furthermore, the connecting rod 3321 is connected to the first connecting shaft seat 3322 and the second connecting shaft seat 3323 respectively through the composite bushing 3324, which helps to ensure that the connecting rod 3321 and the second sealing cover 32 can move accurately along a predetermined trajectory during the movement.

[0047] Furthermore, the arrangement of the composite liner 3324 being connected to the first connecting shaft seat 3322 and the second connecting shaft seat 3323 respectively helps to provide reliable connection points, which helps to enhance the connection strength and rigidity of the connecting rod 3321 to the filler housing 1 and the second sealing cover 32 respectively, and effectively reduces loosening and deformation caused by vibration and external force during movement.

[0048] Furthermore, the composite bushing 3324 is made of wear-resistant material and has good self-lubricating properties. It can not only reduce the friction and wear between the connecting rod 3321 and the first connecting shaft seat 3322, and between the connecting rod 3321 and the second connecting shaft seat 3323, but also help extend the service life of the components.

[0049] like Figures 1 to 8 A hinge 34 is provided between the first sealing cover 31 and the second sealing cover 32 shown, and the first sealing cover 31 is hinged to the second sealing cover 32 through the hinge 34.

[0050] Furthermore, the hinge 34 facilitates rotation or folding between the first sealing cover 31 and the second sealing cover 32 within a certain range.

[0051] Furthermore, the hinge 34 adopts a standardized connection method, making the installation process of the first sealing cover 31 and the second sealing cover 32 simpler and faster. When the hinge 34 is worn or damaged, the user can easily remove it and replace it with a new hinge 34, thereby reducing maintenance costs and time.

[0052] like Figures 1 to 8The hinge 34 shown includes a first connecting surface 341 connected to the first sealing cover 31 and a second connecting surface 342 connected to the second sealing cover 32. When the drive cylinder 3311 drives the telescopic rod 3312 to move the first sealing cover 31 relative to the filler housing 1, the side of the first sealing cover 31 closer to the second sealing cover 32 moves away from the opening 2, and the first connecting surface 341 and the second connecting surface 342 form an included angle α, 45°≤ included angle α≤60°, and the central axis of the telescopic rod 3312 is located within the included angle α.

[0053] Specifically, in existing compressed garbage trucks, there is a sliding rail type sealing cover. Two curved guide rails need to be made on the loader housing 1. The hydraulic cylinder is set inside the loader housing 1. The built-in hydraulic cylinder transmits force to the connecting rod on the outside of the loader through the rotating shaft. When the sealing cover is raised, the center of gravity of the entire sealing cover is far from the center of the rotating shaft. When the vehicle is in emergency braking or rapid start-up state, the sealing cover has a large inertia. Because the center of gravity of the sealing cover is far from the center of the rotating shaft, the moment of inertia is large, which makes the connecting rod easy to bend.

[0054] Furthermore, by setting hinges 34 to connect with the first sealing cover 31 and the second sealing cover 32 respectively, the first sealing cover 31 and the second sealing cover 32 are hinged. When the first sealing cover 31 and the second sealing cover 32 rise to the highest height, the first connecting surface 341 and the second connecting surface 342 form an included angle α, 45°≤ included angle α≤60°, that is, the angle between the first sealing cover 31 and the second sealing cover 32 is between 45° and 60°. The central axis of the telescopic rod 3312 is located within the included angle α, so that the overall center of gravity of the first sealing cover 31 and the second sealing cover 32 is close to the central axis of the telescopic rod 3312. This is beneficial to enhance the structural stability between the first sealing cover 31, the second sealing cover 32 and the telescopic rod 3312, and avoid the telescopic rod 3312 from bending easily.

[0055] Furthermore, when the first sealing cover 31 and the second sealing cover 32 form an included angle α under the action of the hinge 34, the overall center of gravity of the first sealing cover 31 and the second sealing cover 32 is effectively pulled closer to the central axis of the telescopic rod 3312, which helps to reduce the impact of the torque generated by the inertia of the sealing cover on the telescopic rod 3312 during vehicle operation, especially during emergency braking or rapid start.

[0056] like Figures 1 to 8 The first sealing cover 31 shown is arc-shaped, and the tilt angle of the first sealing cover 31 is the same as the tilt angle of the outer wall of the filler housing 1.

[0057] Furthermore, the arc-shaped first sealing cap 31 can fit more tightly against the outer wall of the filler housing 1, which helps to reduce gaps caused by shape mismatch, thereby improving the sealing performance of the filler housing 1.

[0058] Furthermore, the arc-shaped first sealing cover 31 can reduce air resistance when the vehicle is in motion, and the setting with the same inclination angle as the outer wall of the filler housing 1 helps to improve airflow, reduce turbulence and eddies in the airflow near the sealing cover, and further reduce resistance.

[0059] Furthermore, the arc-shaped first sealing cover 31 matches the inclination angle of the outer wall of the loader housing 1, which helps to improve the overall aesthetics of the garbage truck.

[0060] like Figures 1 to 8 The second sealing cover 32 shown is connected to a rubber plate 35 on the side away from the first sealing cover 31. The filling device housing 1 is hinged to a feeding mechanism 36 on the side near the rubber plate 35. The feeding mechanism 36 can be flipped relative to the filling device housing 1 toward the opening 2.

[0061] Furthermore, the rubber plate 35 can fill the tiny gap between the second sealing cover 32 and the filler housing 1, which helps to provide an additional sealing layer. When the second sealing cover 32 is closed, the rubber plate 35 will fit tightly against the outer wall of the filler housing 1 to prevent the leakage of garbage and dust.

[0062] Furthermore, the rubber plate 35 has good elasticity and cushioning effect, which can absorb the impact force on the second sealing cover 32 during the closing process, reduce the rigid collision between the second sealing cover 32 and the filler housing 1, and help extend the service life of the device.

[0063] Specifically, when the first sealing cover 31 and the second sealing cover 32 need to rise to open the opening 2, air enters the drive cylinder 3311, the telescopic rod 3312 extends, and the telescopic rod 3312 drives the first sealing cover 31 to rise slowly. Under the action of the hinge, the drive cylinder 3311 swings from the horizontal direction to the vertical direction. In the initial stage of rising, the first sealing cover 31 drives the second sealing cover 32 to rise synchronously. Under the action of the connecting rod rotation mechanism 332 restricting the movement trajectory of the second sealing cover 32, both the second sealing cover 32 and the rubber plate 35 rise in a near-vertical direction. During this process, the feeding mechanism 36 flips relative to the filling device housing 1 towards the opening 2. Since both the second sealing cover 32 and the rubber plate 35 rise in a near-vertical direction in the initial stage of rising, neither the second sealing cover 32 nor the rubber plate 35 will interfere with the feeding mechanism 36, which is beneficial to ensuring the stable operation of the feeding mechanism 36.

[0064] like Figures 1 to 8The telescopic rod 3312 shown has a self-locking structure for limiting its own retraction;

[0065] Optionally, in some embodiments, the self-locking structure includes a spring, a locking pin, and a locking hole that engages with the locking pin. When the telescopic rod 3312 extends to its position, the control system sends a signal, the locking pin is pushed by the spring force, and the locking pin is inserted into the locking hole. When the telescopic rod 3312 needs to retract, the control system releases a signal, and the locking pin retracts.

[0066] Optionally, in some embodiments, the self-locking structure includes a chamber and a hydraulic system. When the telescopic rod 3312 extends to the desired position, liquid is injected into the chamber through the hydraulic system to increase the internal pressure of the chamber, thereby locking the position of the telescopic rod 3312 by using the pressure difference. When unlocking is required, the liquid in the chamber is released through the control system to reduce the internal pressure, and the telescopic rod 3312 can then retract.

[0067] Furthermore, when the telescopic rod 3312 and the drive cylinder 3311 are in the open state, the solenoid valve in the air circuit system will slowly leak air due to time, causing the telescopic rod 3312 to lose its locking function. The self-locking structure helps to prevent the telescopic rod 3312 and the drive cylinder 3311 from slowly leaking air due to time, which would cause the locking function to fail.

[0068] The implementation method of this embodiment is as follows:

[0069] A sealing cover structure for a compactor garbage truck loader includes a loader housing 1, an opening 2 on the loader housing 1, and a sealing cover assembly 3. The sealing cover assembly 3 includes a first sealing cover 31 hinged to the loader housing 1, a second sealing cover 32 hinged to the first sealing cover 31, and a telescopic rotation mechanism 33 connected to the first sealing cover 31 and the second sealing cover 32 respectively. A rubber plate 35 is connected to the side of the second sealing cover 32 away from the first sealing cover 31. A feeding mechanism 36 is hinged to the side of the loader housing 1 near the rubber plate 35. The telescopic rotation mechanism 33 includes a drive telescopic mechanism 331 and a connecting rod rotation mechanism 332, which drives the telescopic mechanism. One end of the drive telescopic mechanism 331 is hinged to the filling device housing 1, and the other end of the drive telescopic mechanism 331 is hinged to the first sealing cover 31. One end of the connecting rod rotation mechanism 332 is hinged to the filling device housing 1, and the other end of the connecting rod rotation mechanism 332 is hinged to the second sealing cover 32. When the first sealing cover 31 and the second sealing cover 32 need to rise to open the opening 2, the drive telescopic mechanism 331 drives the first sealing cover 31 to rise slowly. Under the action of the hinge, the drive telescopic mechanism 331 gradually swings from the horizontal direction to the vertical direction. In the initial stage of rising, the first sealing cover 31 drives the second sealing cover 32 to rise synchronously, and the movement of the second sealing cover 32 is restricted by the connecting rod rotation mechanism 332. Under the influence of the trajectory, both the second sealing cover 32 and the rubber plate 35 rise in a nearly vertical direction. During this process, the feeding mechanism 36 rotates relative to the filling device housing 1 towards the opening 2. Since both the second sealing cover 32 and the rubber plate 35 rise in a nearly vertical direction in the initial stage of rising, they will not interfere with the feeding mechanism 36, which helps to ensure the stable operation of the feeding mechanism 36. The first sealing cover 31 continues to rise under the action of the drive telescopic mechanism 331. The second sealing cover 32 drives the connecting rod rotation mechanism 332 to swing relative to the filling device housing 1, and the second sealing cover 32 gradually tilts and rises. When the first and second sealing covers 31 are raised to their highest height, the side of the second sealing cover 32 away from the first sealing cover 31 faces the opening 2. This ensures that when the opening is large, the overall height of the first and second sealing covers 31 and 32 is low, thereby reducing the risk of collision with tree branches or other obstacles above. This effectively solves the problem that in existing garbage trucks, the sealing cover is raised relative to the garbage truck when the loader needs to close the opening, but due to the large size of the sealing cover, when a larger opening is required, the sealing cover must be raised to a high position, making it easy for the sealing cover to collide with surrounding tree branches and other obstacles, resulting in damage to the sealing cover.

[0070] A hinge 34 is provided between the first sealing cover 31 and the second sealing cover 32. The first sealing cover 31 is hinged to the second sealing cover 32 via the hinge 34. The hinge 34 includes a first connecting surface 341 connected to the first sealing cover 31 and a second connecting surface 342 connected to the second sealing cover 32. When the drive telescopic mechanism 331 drives the first sealing cover 31 to its highest height, the side of the first sealing cover 31 closest to the second sealing cover 32 moves away from the opening 2, and the first connecting surface 341 and the second connecting surface 342 form a clamp. Angle α, 45°≤ angle α≤60°, the central axis of the telescopic rod 3312 is located within the included angle α. When the first sealing cover 31 and the second sealing cover 32 form an included angle α under the action of the hinge 34, the overall center of gravity of the first sealing cover 31 and the second sealing cover 32 is effectively pulled closer to the central axis of the telescopic rod 3312. This helps to reduce the impact of the torque generated by the overall inertia of the first sealing cover 31 and the second sealing cover 32 on the drive telescopic mechanism 331 during vehicle operation, especially during emergency braking or rapid start.

[0071] The drive telescopic mechanism 331 includes a drive cylinder 3311 and a telescopic rod 3312 connected to the output end of the drive cylinder 3311. The telescopic rod 3312 has a self-locking structure to limit its own retraction. When the telescopic rod 3312 and the drive cylinder 3311 are in the open state, the solenoid valve in the air circuit system will slowly leak air over time, causing the telescopic rod 3312 to lose its locking function. The self-locking structure helps to prevent the telescopic rod 3312 and the drive cylinder 3311 from slowly leaking air over time, which would cause the locking function to fail.

[0072] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A sealing cover structure for a compactor garbage truck loader, comprising a loader housing (1), characterized in that: The filler housing (1) is provided with an opening (2) and a sealing cap assembly (3). The sealing cap assembly (3) includes a first sealing cap (31) hinged to the filler housing (1), a second sealing cap (32) hinged to the first sealing cap (31), and a telescopic rotation mechanism (33) connected to the first sealing cap (31) and the second sealing cap (32) respectively. When the telescopic rotation mechanism (33) drives the first sealing cap (31) and the second sealing cap (32) to move relative to the filler housing (1) to open the opening (2), the side of the second sealing cap (32) away from the first sealing cap (31) faces the opening (2).

2. The sealing cover structure for a compactor garbage truck loader according to claim 1, characterized in that: The telescopic rotation mechanism (33) includes a drive telescopic mechanism (331), one side of which is hinged to the filler housing (1), and the other side of which is hinged to the first sealing cover (31).

3. A sealing cover structure for a compactor in a garbage truck according to claim 2, characterized in that: The drive telescopic mechanism (331) includes a drive cylinder (3311), a telescopic rod (3312) connected to the output end of the drive cylinder (3311), a connector (3313), and a mounting base (3314). The drive cylinder (3311) is hinged to the filler housing (1) through the mounting base (3314), and the side of the telescopic rod (3312) away from the drive cylinder (3311) is hinged to the first sealing cover (31) through the connector (3313).

4. A sealing cover structure for a compactor garbage truck loader according to claim 1, characterized in that: The telescopic rotation mechanism (33) includes a linkage rotation mechanism (332), one side of which is hinged to the filler housing (1), and the other side of which is hinged to the second sealing cover (32).

5. A sealing cover structure for a compactor in a garbage truck according to claim 4, characterized in that: The linkage rotation mechanism (332) includes a linkage (3321), a first connecting shaft seat (3322) connected to the filler housing (1), a second connecting shaft seat (3323) connected to the second sealing cover (32), and a composite liner kit (3324). The linkage (3321) is hinged to the first connecting shaft seat (3322) and the second connecting shaft seat (3323) respectively through the composite liner kit (3324).

6. A sealing cover structure for a compactor garbage truck loader according to claim 3, characterized in that: A hinge (34) is provided between the first sealing cover (31) and the second sealing cover (32), and the first sealing cover (31) is hinged to the second sealing cover (32) through the hinge (34).

7. A sealing cover structure for a compactor garbage truck loader according to claim 6, characterized in that: The hinge (34) includes a first connecting surface (341) connected to the first sealing cover (31) and a second connecting surface (342) connected to the second sealing cover (32). When the drive cylinder (3311) drives the telescopic rod (3312) to move the first sealing cover (31) relative to the filler housing (1), the side of the first sealing cover (31) closer to the second sealing cover (32) moves away from the opening (2), and the first connecting surface (341) and the second connecting surface (342) form an angle α, 45°≤angle α≤60°, and the central axis of the telescopic rod (3312) is located within the angle α.

8. A sealing cover structure for a compactor garbage truck loader according to claim 1, characterized in that: The first sealing cover (31) is arc-shaped, and the tilt angle of the first sealing cover (31) is the same as the tilt angle of the outer wall of the filler housing (1).

9. A sealing cover structure for a compactor garbage truck loader according to claim 1, characterized in that: The second sealing cover (32) is connected to a rubber plate (35) on the side away from the first sealing cover (31). The filling device housing (1) is hinged to a feeding mechanism (36) on the side near the rubber plate (35). The feeding mechanism (36) can be flipped relative to the filling device housing (1) toward the opening (2).

10. A sealing cover structure for a compactor garbage truck loader according to claim 3, characterized in that: The telescopic rod (3312) has a self-locking structure for limiting its own retraction.

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