Automatic mechanical arm for fixing garbage truck
The automatic fixing and disassembly of garbage bins is achieved through a robotic arm driven by an electric cylinder and a gear and rack transmission, which solves the problem of cumbersome and laborious fixing methods in traditional garbage trucks and improves the automation and safety of garbage truck operations.
Patent Information
- Application Number
- CN202522070276.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-25
AI Technical Summary
Traditional garbage trucks with fixed garbage bins are cumbersome and labor-intensive to operate, have poor adaptability, are labor-intensive, and are not suitable for the needs of automation and high efficiency.
The robotic arm, driven by an electric cylinder, automatically fixes and disassembles the garbage bins via a gear and rack transmission. It utilizes the precise locking of the fixing hook with the T-shaped cylinder, combined with a spring buffer structure, to achieve rapid fixing and disassembly without manual operation.
It enables the quick, safe, and stable fixing and disassembly of garbage bins, adapts to different models of garbage trucks, reduces operational difficulty and labor intensity, and improves operational efficiency and safety.
Smart Images

Figure CN224676977U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of robotic arm technology, and in particular relates to an automatic robotic arm for fixing garbage trucks. Background Technology
[0002] Garbage collection trucks are specialized vehicles used for transporting garbage in municipal sanitation and large factories and mines. They are classified into six main categories based on function: compression type, self-unloading type, swing arm type, self-loading and unloading type, sealed type, and hook arm type. They primarily utilize hydraulic systems and sealing structures to achieve garbage compression and leak prevention. Suitable for transporting household waste and other similar items, they offer significant advantages such as reliable quality, low failure rate, convenient maintenance, and low operating costs. During garbage truck operations, securing and disassembling the garbage container is crucial for ensuring operational safety and improving transfer efficiency. Traditional garbage container securing methods are cumbersome and labor-intensive, often relying on manual insertion and removal of pins, tightening of bolts, or operation of hydraulic rods. These operations are time-consuming, and the complex operating environment of garbage trucks makes manual operation susceptible to dirt and odors, resulting in high labor intensity. Furthermore, traditional garbage container securing methods have poor adaptability, as different garbage truck models have different container sizes and securing points, leading to low versatility. As the garbage collection and transportation industry develops towards automation and efficiency, traditional securing methods can no longer meet the requirements for safe, convenient, and universal operation. Therefore, there is an urgent need for an automated robotic arm for garbage truck securing to solve the above problems. Utility Model Content
[0003] The purpose of this utility model is to provide an automatic robotic arm for fixing garbage trucks, in order to solve the problems of cumbersome and laborious operation of traditional garbage truck garbage bin fixing methods.
[0004] This utility model achieves the above-mentioned objectives through the following technical solution: It includes a vehicle frame, with a garbage bin mounted on top of the frame. T-shaped cylinders are located on both sides of one end of the garbage bin. Two robotic arms are symmetrically mounted on one end of the frame. Each robotic arm includes a base plate, with a housing surrounding the base plate. An electric cylinder is located at one end inside the housing. A connecting rod is located on the side of the electric cylinder, and a first rack is located on the side of the connecting rod. A first slider is located on the side of the first rack away from the garbage bin, and a first slide rail is movably connected to the side of the first slider. A first gear is movably connected to the side of the first rack near the garbage bin, meshing with each other. A second gear is located above the first gear. A movable shaft is located between the first gear and the second gear. A second rack is located on the side of the second gear away from the electric cylinder. A protective shell is located on the side of the second rack near the garbage bin. A second slider is located on the side of the second rack, and a second slide rail is movably connected to the side of the second slider. An L-shaped connecting plate is located below the second slider. A U-shaped plate is located above the connecting rod. A fixing plate is located on the side of the base plate away from the electric cylinder, and a fixing device is located above the fixing plate.
[0005] Furthermore, the fixing device includes a movable plate with a movable groove running through its upper surface. A connecting block is movably connected inside the movable groove. A spring is provided on the side of the connecting block near the trash can. A first arc-shaped plate is provided on both sides of one end of the spring. A second arc-shaped plate is provided on the side of the first arc-shaped plate. A connecting support frame is provided at the end of the first arc-shaped plate away from the spring. A fixing hook is provided above the support frame, and a rotating shaft is provided below the support frame.
[0006] Furthermore, the movable plate is fixed above the outer shell, and the connecting block is fixedly connected to the upper part of the L-shaped connecting plate.
[0007] Furthermore, the bottom of the second arc-shaped plate is fixedly connected to the rotating shaft, and the bottom of the support frame is fixedly connected to the rotating shaft.
[0008] Furthermore, the electric cylinder is connected to the base plate, the first slide rail is fixed between the fixed plate and the U-shaped plate, and the second slide rail is fixedly connected to the outer shell.
[0009] Furthermore, the movable shaft is movably connected to the base plate.
[0010] Furthermore, the protective shell is fixedly connected to the outer shell, and the second rack is movably connected inside the protective shell.
[0011] Furthermore, the U-shaped plate and the base plate are interconnected.
[0012] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects: 1. The robotic arm adopts an automatic control structure driven by an electric cylinder and coupled with gear and rack transmission. The opening and closing of the fixed hook can be achieved by a button on the garbage truck. The extension and retraction of the electric cylinder drives the first rack to move, which drives the second rack through the first and second gear transmissions. Finally, the fixed hook hooks onto or detaches from the T-shaped cylinder of the garbage bin. No manual operation is required throughout the process, and the fixing or disassembly of the garbage bin can be completed quickly. 2. The device adopts a dual-arm symmetrical fixing and locking structure with a fixing hook: the two robotic arms correspond to the T-shaped cylinders on both sides of the garbage bin. After the fixing hooks accurately hook into the T-shaped cylinders, two symmetrical limiting points are formed. At the same time, springs assist the first arc plate and the second arc plate to fit tightly into the fixing components, buffering the bumps during transportation and preventing the fixing hooks from loosening. Even when the garbage bin is tilted and dumping garbage, the fixing hooks can still firmly lock into the T-shaped cylinders, with no risk of displacement or falling off. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the robotic arm of this utility model; Figure 2This is a schematic diagram of the structure of this utility model; Figure 3 This is a diagram of the internal structure of the robotic arm of this utility model; Figure 4 This is a right view of the internal structure of the robotic arm of this utility model; Figure 5 This is a top view of the internal structure of the robotic arm of this utility model; Figure 6 This is a structural diagram of the robotic arm of this utility model; Figure 7 This is a rear view of the robotic arm portion of this utility model.
[0014] In the diagram: 1-frame, 2-garbage bin, 3-T-shaped cylinder, 4-robotic arm, 5-moving shaft, 6-fixed device, 7-U-shaped plate, 8-fixed plate, 41-base plate, 42-outer shell, 43-electric cylinder, 44-connecting rod, 45-first rack, 46-first slide rail, 47-first slider, 48-first gear, 49-second gear, 50-moving shaft, 51-second rack, 52-protective shell, 53-second slider, 54-second slide rail, 55-L-shaped connecting plate, 61-moving plate, 62-moving groove, 63-connecting block, 64-spring, 65-second arc plate, 66-first arc plate, 67-support frame, 68-fixed hook, 69-rotating shaft. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Combination Figures 1 to 7The automatic robotic arm for fixing a garbage truck shown includes a frame 1, a garbage bin 2 mounted on top of the frame 1, T-shaped cylinders 3 on both sides of one end of the garbage bin 2, and two robotic arms 4 symmetrically mounted on one end of the frame 1. Each robotic arm 4 includes a base plate 41, an outer shell 42 surrounding the base plate 41, an electric cylinder 43 mounted inside the outer shell 42 at one end, a connecting rod 44 on the side of the electric cylinder 43, a first rack 45 on the side of the connecting rod 44, a first slider 47 on the side of the first rack 45 away from the garbage bin 2, a matching first slide rail 46 movably connected to the side of the first slider 47, and a meshing first gear 48 movably connected to the side of the first rack 45 near the garbage bin 2, with a second tooth above the first gear 48. A movable shaft 50 is provided at the middle position of wheel 49, first gear 48 and second gear 49. A second rack 51 is provided at the end of the second gear 49 away from the electric cylinder 43. A protective shell 52 is provided at the end of the second rack 51 near the garbage bin 2. A second slider 53 is provided on the side of the second rack 51. A matching second slide rail 54 is movably connected to the side of the second slider 53. An L-shaped connecting plate 55 is provided below the second slider 53. A U-shaped plate 7 is provided above the connecting rod 44. A fixing plate 8 is provided at the end of the base plate 41 away from the electric cylinder 43. A fixing device 6 is provided above the fixing plate 8. The electric cylinder, slider, slide rail and spring in this utility model are existing technologies and will not be described in detail. The robotic arm is controlled by a button on the garbage truck.
[0017] The fixing device 6 includes a movable plate 61, with a movable groove 62 extending through its upper surface. A connecting block 63 is movably connected inside the movable groove 62. A spring 64 is provided on the side of the connecting block 63 near the garbage bin 2. A first arc-shaped plate 66 is provided on both sides of one end of the spring 64. A second arc-shaped plate 65 is provided on the side of the first arc-shaped plate 66. A connecting support frame 67 is provided at the end of the first arc-shaped plate 66 away from the spring 64. A fixing hook 68 is provided above the support frame 67, and a rotating shaft 69 is provided below the support frame 67.
[0018] The movable plate 61 is fixed above the outer casing 42, the connecting block 63 is fixedly connected to the upper part of the L-shaped connecting plate 55, the spring 64 is movably connected to the upper part of the movable plate 61, and the movable connection between the rotating shaft 59 and the movable plate 61 is the prior art.
[0019] The bottom of the second arc plate 65 is fixedly connected to the rotating shaft 69, and the bottom of the support frame 67 is fixedly connected to the rotating shaft 69. The rotating shaft 69 is movably connected to one end of the movable plate 61. The first arc plate 66, the second arc plate 65 and the spring 64 are connected to each other through the shaft, which facilitates rotation. The spring 64 is a high-strength spring, which can withstand high loads and high frequency cyclic stresses and still maintain stable elasticity and long service life.
[0020] The electric cylinder 43 is connected to the base plate 41. The first slide rail 46 is fixed between the fixed plate 8 and the U-shaped plate 7. The second slide rail 54 is fixedly connected to the outer shell 42.
[0021] The movable shaft 50 is movably connected to the base plate 41, and the connection method is the existing technology. The movable shaft 50 is fixedly connected to the first gear 48 and the second gear 49.
[0022] The protective shell 52 is fixedly connected to the outer shell 42, and the second rack 51 is movably connected inside the protective shell 52.
[0023] The U-shaped plate 7 and the base plate 41 are connected to each other, and the connecting rod 44 is movably connected inside the hole formed by the U-shaped plate 7 and the base plate 41.
[0024] Working principle: In use, this utility model drives the electric cylinder 43 to move backward, which in turn moves the connecting rod 44 backward, thereby causing the first rack 45 to move towards the U-shaped plate 7. The first rack 45, through the cooperation of the first slider 47 and the first slide rail 46, passes through the hole in the U-shaped plate, thereby causing the first gear 48 on the side of the first rack 45 to rotate. The first gear 48 drives the second gear 49 to rotate through the movable ring 50. The second gear 49 causes the second rack 51 on the side to move away from the garbage bin 2. The L-shaped connecting plate 55 below the second slider 53 on the side of the second rack 49 also moves away from the garbage bin in the opposite direction, thereby causing the connecting block 63 to move in the same direction. The connecting block 63 carries a spring. When spring 64 moves backward, the second arc-shaped plate 65 at one end of spring 64 moves backward, thereby driving the first arc-shaped plate 65 and the rotating shaft 69 to move backward. This, in turn, drives the fixing hook 68 to move backward through the support frame 67, thus disengaging it from the T-shaped cylinder. This allows the garbage bin to detach from its fixed position. When the electric cylinder operates in the reverse direction, the fixing hook 68 can be re-fixed onto the T-shaped cylinder 3, thus fixing the garbage bin 2 inside the fixing groove of the frame 1. This prevents the garbage bin from moving back and forth. When the garbage bin is tilted at 45 degrees to dump garbage, the fixing hook 68 can hook onto the T-shaped cylinder 3, thus fixing the garbage bin inside the frame 1 when dumping garbage. This allows the garbage bin to be fixed and disassembled simply by operating the robotic arm, making the operation simple and convenient.
[0025] This utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description; thus, it is intended that the claims fall within the scope of the present invention. All variations in the meaning and scope of the equivalent requirements are encompassed within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An automatic robotic arm for fixing a garbage truck, comprising a frame (1), a garbage bin (2) above the frame (1), and T-shaped cylinders (3) on both sides of one end of the garbage bin (2), characterized in that: Two robotic arms (4) are symmetrically arranged at one end of the frame (1). Each robotic arm (4) includes a base plate (41) and a shell (42) around the base plate (41). An electric cylinder (43) is provided at one end inside the shell (42). A connecting rod (44) is provided on the side of the electric cylinder (43). A first rack (45) is provided on the side of the connecting rod (44). A first slider (47) is provided on the side of the first rack (45) away from the garbage bin (2). A first slide rail (46) is movably connected to the side of the first slider (47). A first gear (48) is movably connected to the side of the first rack (45) near the garbage bin (2). A second gear (49) is provided above the first gear (48). The first gear (48) and the second gear (49) are both provided with a movable shaft (50) in the middle. The second gear (49) is provided with a second rack (51) at the end away from the electric cylinder (43). The second rack (51) is provided with a protective shell (52) at the end near the garbage bin (2). The second rack (51) is provided with a second slider (53) on the side. The second slider (53) is movably connected to a second slide rail (54) on the side. The second slider (53) is provided with an L-shaped connecting plate (55) below it. The connecting rod (44) is provided with a U-shaped plate (7) above it. The bottom plate (41) is provided with a fixing plate (8) at the end away from the electric cylinder (43). The fixing plate (8) is provided with a fixing device (6) above it.
2. The automatic robotic arm for fixing a garbage truck according to claim 1, characterized in that: The fixing device (6) includes a movable plate (61), and a movable groove (62) runs through the upper surface of the movable plate (61). A connecting block (63) is movably connected inside the movable groove (62). A spring (64) is provided on the side of the connecting block (63) near the garbage bin (2). A first arc plate (66) is provided on both sides of one end of the spring (64). A second arc plate (65) is provided on the side of the first arc plate (66). A connecting support frame (67) is provided at the end of the first arc plate (66) away from the spring (64). A fixing hook (68) is provided above the support frame (67). A rotating shaft (69) is provided below the support frame (67).
3. The automatic robotic arm for fixing a garbage truck according to claim 2, characterized in that: The movable plate (61) is fixed above the outer shell (42), and the connecting block (63) is fixedly connected to the upper part of the L-shaped connecting plate (55).
4. The automatic robotic arm for fixing a garbage truck according to claim 2, characterized in that: The bottom of the second arc plate (65) is fixedly connected to the rotating shaft (69), and the bottom of the support frame (67) is fixedly connected to the rotating shaft (69).
5. An automatic robotic arm for fixing a garbage truck according to claim 2, characterized in that: The electric cylinder (43) is connected to the base plate (41), the first slide rail (46) is fixed between the fixed plate (8) and the U-shaped plate (7), and the second slide rail (54) is fixedly connected to the outer shell (42).
6. An automatic robotic arm for fixing a garbage truck according to claim 2, characterized in that: The movable shaft (50) is movably connected to the base plate (41).
7. The automatic robotic arm for fixing a garbage truck according to claim 1, characterized in that: The protective shell (52) is fixedly connected to the outer shell (42), and the second rack (51) is movably connected inside the protective shell (52).
8. An automatic robotic arm for fixing a garbage truck according to claim 1, characterized in that: The U-shaped plate (7) is connected to the base plate (41).