Guardrail bottom sweeping machine and sweeping vehicle

Abstract

The utility model relates to a guardrail bottom sweeper and a sweeper, the guardrail bottom sweeper comprises a force arm, an elastic telescopic mechanism and a sweeping mechanism, and the sweeping mechanism is connected with the force arm through the elastic telescopic mechanism; the sweeping mechanism comprises a sweeping assembly and a protection assembly used for preventing the sweeping assembly from colliding with a foreign object. The sweeping mechanism can extend towards the outside of the vehicle body through the force arm, scratching and the like between the vehicle body and the guardrail are avoided, and the sweeping mechanism can be closer to the guardrail or extend to the bottom of the guardrail for sweeping. The protection assembly is arranged to prevent the sweeping assembly from directly colliding with the guardrail and other foreign objects, and it is guaranteed that the foreign objects cannot interfere with work of the sweeping assembly. When the protection assembly collides with the supporting legs of the guardrail, stress can be transmitted to the elastic telescopic mechanism, the sweeping mechanism can retract along with advancing of the vehicle body, the problem that the sweeping mechanism and the supporting legs of the guardrail are stuck is avoided, and after the sweeping mechanism crosses the supporting legs of the guardrail, the sweeping mechanism can reset to continue sweeping the ground at the bottom of the guardrail.

Description

Technical Field

[0001] This utility model relates to the field of sanitation equipment technology, and in particular to a guardrail bottom cleaning machine and cleaning vehicle. Background Technology

[0002] Currently, the use of dedicated road sweepers for road cleaning is becoming increasingly common. Guardrails are typically installed on both sides and in the middle of roads. However, the placement of the guardrail's base supports (the parts that connect to the ground), spaced at short intervals (generally about 2 meters), severely hinders the sweeper's ability to clean the area under the guardrails. Furthermore, to ensure driving safety and prevent collisions with the guardrails, and considering driver skill levels, the area around the bottom of the guardrails and the roadside, approximately 20cm away, essentially constitutes a blind spot for mechanical sweeping. Currently, sanitation workers typically sweep these blind spots on the sidewalks with brooms; however, this is also slow and inefficient due to the obstruction and interference from the guardrails and their supports. Utility Model Content

[0003] The purpose of this utility model is to provide a guardrail bottom cleaning machine and sweeper vehicle, which can clean the bottom of the guardrail and its surrounding area.

[0004] To achieve the above objectives, this utility model discloses a guardrail bottom cleaning machine, which includes a lever arm, an elastic telescopic mechanism, and a cleaning mechanism. The cleaning mechanism is connected to the lever arm via the elastic telescopic mechanism. The cleaning mechanism includes a cleaning component and a protective component to prevent the cleaning component from colliding with external objects. With this configuration, the cleaning mechanism can be extended outwards from the vehicle body via the lever arm, avoiding scrapes between the vehicle body and the guardrail, and allowing the cleaning mechanism to get closer to the guardrail or extend under it for cleaning. The protective component prevents the cleaning component from directly colliding with the guardrail or other external objects, ensuring that external objects do not interfere with the operation of the cleaning component. When colliding with the guardrail's support legs, the protective component acts as a force-bearing point, transmitting the force to the elastic telescopic mechanism. As the vehicle body moves, the cleaning mechanism can retract, preventing the cleaning mechanism from getting stuck with the guardrail's support legs. After passing the guardrail's support legs, the cleaning mechanism resets under the action of elasticity, allowing it to continue cleaning the ground under the guardrail.

[0005] Preferably, the protective component includes a protective frame, and the side of the protective frame away from the lever arm has an arc-shaped guide edge, and the cleaning component does not extend beyond the guide edge. By setting the arc-shaped guide edge, the problem of the protective component getting stuck with guardrails can be better avoided, which facilitates obstacle crossing (overcoming guardrail legs) and ensures smooth cleaning.

[0006] Preferably, the protective component further includes a barrier, which is arranged along the length of the guide edge. By setting up the barrier, garbage and other debris can be prevented from being swept to the side of the guardrail away from the sweeper, thus facilitating garbage collection.

[0007] Preferably, the protective assembly further includes a plurality of guide wheels, which are spaced apart along the length of the guide edge. The guide wheels are rotatably connected to the protective frame, and some of the guide wheels extend beyond the guide edge. By providing guide wheels, jamming can be further prevented, and if rubber wheels are used, they can also reduce noise to some extent.

[0008] Preferably, the cleaning assembly is a rotary brush; or, the cleaning assembly is a rotary nozzle assembly, which includes a rotary joint, a connecting rod, and at least one nozzle. The inlet of the rotary joint is connected to an external air or water source, and the outlet of the rotary joint is connected to the connecting rod, and the outlet of the rotary joint communicates with the inner cavity of the connecting rod. The nozzles are spaced apart on the connecting rod, and the nozzles communicate with the inner cavity of the connecting rod. This type of cleaning assembly has a simple structure and provides two different methods that can be adjusted according to the actual environment.

[0009] Preferably, the elastic telescopic mechanism includes a guide rail, a slider, an extension member, and an elastic member. The guide rail is mounted on a lever arm, the slider is slidably connected to the guide rail, one end of the extension member is connected to the slider, and the other end of the extension member extends out of the lever arm and is connected to the cleaning mechanism; one end of the elastic member is connected to the lever arm, and the other end of the elastic member is connected to the slider or the extension member. This type of elastic telescopic mechanism has a simple structure, is easy to maintain, and has a low cost.

[0010] Preferably, the elastic element is a helical spring or a hydraulic spring. Choosing a helical spring or a hydraulic spring is beneficial because both are readily available on the market and facilitate future equipment maintenance.

[0011] Preferably, the lever arm includes a first lever arm, a second lever arm, and an inclination adjustment assembly. The first lever arm and the second lever arm are rotatably connected, and the elastic telescopic mechanism is connected to the second lever arm. The inclination adjustment assembly includes a first screw, a second screw, and an adjusting sleeve. The adjusting sleeve has a first threaded hole and a second threaded hole, which are coaxially arranged and have opposite thread directions. The first lever arm has a support member. One end of the first screw is rotatably connected to the support member, and the other end of the first screw is threadedly connected to the first threaded hole. One end of the second screw is rotatably connected to the second lever arm, and the other end of the second screw is threadedly connected to the second threaded hole. This configuration allows for convenient adjustment of the inclination of the cleaning assembly.

[0012] Preferably, the system further includes a rotating assembly for horizontally rotating the lever arm and / or a lifting assembly for raising and lowering the lever arm. The rotating assembly facilitates the machine's storage on the vehicle body, while the lifting assembly allows for adjustment of the sweeping assembly's height to better adapt to different working conditions.

[0013] This utility model also discloses a sweeper, which includes a vehicle body and the aforementioned guardrail bottom sweeper, wherein the guardrail bottom sweeper is installed at the front, rear or side of the vehicle body.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes a lever arm to extend the cleaning mechanism outwards from the vehicle body, preventing scraping between the vehicle and guardrails and allowing the cleaning mechanism to approach or extend under the guardrail for cleaning. A protective component prevents direct collisions between the cleaning mechanism and external objects such as guardrails, ensuring that these objects do not interfere with the cleaning mechanism's operation. When a collision occurs with a guardrail support leg, the protective component acts as a force-bearing point, transmitting the force to an elastic telescopic mechanism. As the vehicle moves, the cleaning mechanism retracts, preventing it from getting stuck between the cleaning mechanism and the guardrail support leg. After passing the guardrail support leg, the cleaning mechanism returns to its original position under the elastic force, allowing it to continue cleaning the ground under the guardrail. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of a lever arm and an elastic telescopic mechanism.

[0018] Figure 3 This is a schematic diagram of the lever arm and elastic telescopic mechanism from another perspective.

[0019] Figure 4 This is a schematic diagram of the cleaning mechanism.

[0020] Figure 5 This is a schematic diagram of the cleaning mechanism from another perspective.

[0021] Explanation of symbols for main components:

[0022] Lifting component 10;

[0023] Rotating component 20;

[0024] Lever arm 30, first lever arm 31, second lever arm 32, first screw 33, second screw 34, adjusting sleeve 35, and lifting component 36;

[0025] 40. Elastic telescopic mechanism, 41. Guide rail, 42. Slider, 43. Extension, 44.

[0026] Cleaning mechanism 50, protective frame 51, enclosure 52, guide wheel 53, guide edge 54, rotary joint 55, connecting rod 56, nozzle 57. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-5 As shown, this utility model discloses a guardrail bottom cleaning machine, which includes a rotating component 20, a lifting component 10, a lever arm 30, an elastic telescopic mechanism 40, and a cleaning mechanism 50. The lifting component 10 is used to drive the rotating component 20 to move up and down, and the rotating component 20 is used to drive the lever arm 30 to rotate horizontally. The lifting component 10 is a linear motion module, which can directly use a hydraulic cylinder, or it can be built based on a motor, screw, slide rail, and sliding block. The rotating component 20 can be built based on a motor (or hydraulic motor) and a turntable. These two are existing technologies and will not be described in detail.

[0029] The lever arm 30 includes a first lever arm 31, a second lever arm 32, and an inclination adjustment assembly. The first lever arm 31 and the second lever arm 32 are rotatably connected, and the second lever arm 32 swings up and down relative to the first lever arm 31. The first lever arm 31 is connected to the rotating assembly 20. The inclination adjustment assembly includes a first screw 33, a second screw 34, and an adjusting sleeve 35. The adjusting sleeve 35 has a first threaded hole and a second threaded hole, which are coaxially arranged and have opposite thread directions. A lifting member 36 is provided on the first lever arm 31. One end of the first screw 33 is rotatably connected to the lifting member 36, and the other end of the first screw 33 is threadedly connected to the first threaded hole. One end of the second screw 34 is rotatably connected to the second lever arm 32, and the other end of the second screw 34 is threadedly connected to the second threaded hole. The angle of the second lever arm 32 relative to the first lever arm 31 can be adjusted by adjusting the adjusting sleeve 35.

[0030] The elastic telescopic mechanism 40 is mounted on the second lever arm 32. Specifically, the elastic telescopic mechanism 40 includes a guide rail 41, a slider 42, an extension 43, and an elastic element 44. The guide rail 41 is mounted on the second lever arm 32, and the length direction of the guide rail 41 is parallel to the length direction of the second lever arm 32. The slider 42 is slidably connected to the guide rail 41, and the slider 42 cannot be detached from the guide rail 41. One end of the extension 43 is connected to the slider 42, and the other end of the extension 43 extends out of the lever arm 30 and is connected to the cleaning mechanism 50. One end of the elastic element 44 is connected to the lever arm 30, and the other end of the elastic element 44 is connected to the slider 42 or the extension 43. The elastic element 44 is selected as a helical spring or a hydraulic spring.

[0031] The sweeping mechanism 50 includes a sweeping component and a protective component to prevent the sweeping component from colliding with external objects. Specifically, the protective component includes a protective frame 51, a barrier 52, and guide wheels 53. The protective frame 51 is bolted to the extension 43. An arc-shaped guide edge 54, preferably a semi-circular guide edge 54, is provided on the side of the protective frame 51 away from the lever arm 30. The barrier 52 is arranged along the length of the guide edge 54 and is used to prevent garbage and other debris from being swept to the side of the guardrail away from the sweeper. The barrier 52 can be made of rubber. Multiple guide wheels 53 are provided and spaced apart along the length of the guide edge 54. The guide wheels 53 are rotatably connected to the protective frame 51, and the guide wheels 53 are partially provided with guide edges 54. By providing guide edges 54 and guide wheels 53, the protective component can be prevented from jamming with the guardrail legs. Moreover, if the guide wheels 53 are made of rubber, they can also play a certain role in noise reduction.

[0032] The cleaning assembly is a rotary nozzle 57 assembly, which includes a rotary joint 55, a connecting rod 56, and at least one nozzle 57. The rotary joint 55 is mounted on the protective frame 51. The inlet of the rotary joint 55 is connected to an external air or water source. After the rotary joint 55 is connected to the air or water source, under the action of air or water pressure, the outlet of the rotary joint 55 can rotate and spray air or water. The outlet of the rotary joint 55 is fixedly connected to the connecting rod 56, and the outlet of the rotary joint 55 communicates with the inner cavity of the connecting rod 56. The connecting rod 56 is located below the protective frame 51, and the nozzles 57 are spaced apart on the connecting rod 56, and the nozzles 57 communicate with the inner cavity of the connecting rod 56. The inner cavity of the connecting rod 56 is closed. In this case, two nozzles 57 are provided, located at both ends of the connecting rod 56, and the nozzles 57 are oriented at an angle. Of course, a rotary brush can also be used for the cleaning assembly.

[0033] In addition, this utility model also discloses a sweeper, which includes a vehicle body and the above-mentioned guardrail bottom sweeper. The lifting component 10 of the guardrail bottom sweeper is installed at the front, rear or side of the vehicle body.

[0034] The lifting assembly 10 can adjust the height of the sweeping assembly to adapt to different working conditions, while the rotating assembly 20 allows the sweeper at the bottom of the guardrail to be retracted and close to the vehicle body, facilitating driving when not in operation. The tilt adjustment assembly allows for easy adjustment of the sweeping assembly's tilt. The lever arm 30 extends the sweeping mechanism 50 outwards from the vehicle body, preventing scraping between the vehicle body and the guardrail, and allowing the sweeping mechanism 50 to be closer to the guardrail or extend under it for cleaning. When the sweeping assembly extends under or is close to the guardrail for cleaning, the protective assembly prevents direct collision between the sweeping assembly and the guardrail, avoiding interference with its operation. When the protective component collides with the guardrail legs, the protective component acts as the force-bearing point and transmits the force to the elastic telescopic mechanism 40. As the vehicle moves, the sweeping mechanism 50 can retract to avoid the problem of the sweeping mechanism 50 getting stuck with the guardrail legs. After passing the guardrail legs, the sweeping mechanism 50 resets under the action of elasticity and can continue to sweep the ground at the bottom of the guardrail.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A guardrail bottom cleaning machine, characterized in that: It includes a lever arm, an elastic telescopic mechanism, and a cleaning mechanism, wherein the cleaning mechanism is connected to the lever arm via the elastic telescopic mechanism; the cleaning mechanism includes a cleaning component and a protective component for preventing the cleaning component from colliding with external objects.

2. The guardrail bottom cleaning machine according to claim 1, characterized in that: The protective component includes a protective frame with an arc-shaped guide edge on the side of the protective frame away from the lever arm, and the cleaning component does not extend beyond the guide edge.

3. The guardrail bottom cleaning machine according to claim 2, characterized in that: The protective component also includes a fence, which is provided along the length of the guide edge.

4. The guardrail bottom cleaning machine according to claim 2, characterized in that: The protective assembly also includes several guide wheels, which are spaced apart along the length of the guide edge. The guide wheels are rotatably connected to the protective frame, and some of the guide wheels extend beyond the guide edge.

5. The guardrail bottom cleaning machine according to claim 1, characterized in that: The cleaning component is a rotating brush; or, the cleaning component is a rotary nozzle assembly, which includes a rotary joint, a connecting rod, and at least one nozzle. The inlet of the rotary joint is connected to an external air source or water source, and the outlet of the rotary joint is connected to the connecting rod, and the outlet of the rotary joint is connected to the inner cavity of the connecting rod. The nozzles are spaced apart on the connecting rod, and the nozzles are connected to the inner cavity of the connecting rod.

6. The guardrail bottom cleaning machine according to claim 1, characterized in that: The elastic telescopic mechanism includes a guide rail, a slider, an extension member, and an elastic member. The guide rail is mounted on a lever arm, the slider is slidably connected to the guide rail, one end of the extension member is connected to the slider, and the other end of the extension member extends out of the lever arm and is connected to the cleaning mechanism; one end of the elastic member is connected to the lever arm, and the other end of the elastic member is connected to the slider or the extension member.

7. The guardrail bottom cleaning machine according to claim 6, characterized in that: The elastic element is a helical spring or a hydraulic spring.

8. The guardrail bottom cleaning machine according to claim 1, characterized in that: The lever arm includes a first lever arm, a second lever arm, and an inclination adjustment assembly. The first lever arm and the second lever arm are rotatably connected, and the elastic telescopic mechanism is connected to the second lever arm. The inclination adjustment assembly includes a first screw, a second screw, and an adjusting sleeve. The adjusting sleeve is provided with a first threaded hole and a second threaded hole, which are coaxially arranged and have opposite thread directions. The first lever arm is provided with a support member. One end of the first screw is rotatably connected to the support member, and the other end of the first screw is threadedly connected to the first threaded hole. One end of the second screw is rotatably connected to the second lever arm, and the other end of the second screw is threadedly connected to the second threaded hole.

9. The guardrail bottom cleaning machine according to claim 1, characterized in that: It also includes a rotating assembly for horizontally rotating the lever arm and / or a lifting assembly for raising and lowering the lever arm.

10. A sweeper vehicle, characterized in that: The vehicle includes a vehicle body and a guardrail bottom sweeper as described in any one of claims 1-9, wherein the guardrail bottom sweeper is installed at the front, rear, or side of the vehicle body.

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