Sweeping machine structure

Abstract

The utility model provides a sweeper truck structure, which aims to at least solve the problem that the existing unloading is limited by improving the sweeper truck structure. The sweeper truck structure comprises a truck body, a collecting box and a first driving assembly, the collecting box is connected with the truck body through the first driving assembly, and the first driving assembly at least can drive the collecting box to move up and down relative to the truck body in the height direction; the collecting box is provided with a discharging port used for discharging materials to the outside, the discharging port is located at the bottom of the collecting box, the collecting box is further provided with a cover plate used for blocking the discharging port, and the cover plate can turn over relative to the collecting box so as to open or close the discharging port. By the adoption of the sweeper truck structure in the scheme, the collecting box can be lifted to different heights, so that the collecting box is matched with garbage cans with different heights, and the adaptability of the sweeper truck is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban cleaning devices, in particular to a road sweeper structure. Background Art

[0002] With the acceleration of urbanization, urban cleaning has become increasingly important. As a crucial tool for urban cleaning, street sweepers continue to see growing market demand. Currently, many small street sweepers are available on the market. After collecting a full load of garbage, the emptying of the collection bins often requires manual labor. This operation is not only time-consuming and labor-intensive, increasing the operator's workload and reducing the efficiency of the street sweeper. To address this issue, improvements have been made to street sweepers, enabling the collection bin to be tilted relative to the vehicle body using a lifting cylinder. This improved sweeper features a discharge port at the top of the bin. When the bin is tilted relative to the vehicle body to a certain angle, the garbage inside can be dumped outwards through the discharge port into the trash can, achieving mechanized unloading, significantly reducing the operator's workload and improving work efficiency.

[0003] However, while this improvement somewhat addresses the issue of manual unloading, some practical limitations remain. For example, the limited angle at which the collection bin can be tilted for unloading can lead to incomplete unloading, compromising the sweeper's cleaning performance. Furthermore, because bins vary in height, this tilting unloading method is poorly compatible with bins of varying heights, limiting the sweeper's practical application. Utility Model Content

[0004] The purpose of the utility model is to provide a road sweeper structure, which aims to solve at least one of the problems of incomplete or limited unloading of existing road sweepers by improving the road sweeper structure.

[0005] To achieve the above-mentioned object, the present invention provides a road sweeper structure, which includes a vehicle body, a collection box, and a first drive assembly. The collection box is connected to the vehicle body via the first drive assembly, and the first drive assembly is capable of at least driving the collection box to move up and down relative to the vehicle body in a height direction.

[0006] The collecting box is provided with a discharge port for discharging materials to the outside, and the discharge port is located at the bottom of the collecting box. The collecting box is also provided with a cover plate for blocking the discharge port, and the cover plate can be flipped relative to the collecting box to open or close the discharge port.

[0007] By adopting the road sweeper structure in this solution, the discharge port is set at the bottom of the collection box. The collection box can be lifted to a set height through the first drive component, and then the discharge port is opened. The garbage in the collection box falls into the garbage bin under the action of gravity; the first drive component can control the first drive component to enable the collection box to be lifted to different heights, so as to adapt to garbage bins of different heights, thereby improving the adaptability of the road sweeper.

[0008] Optionally, the first drive assembly includes a first drive member and two sets of two-link mechanisms, spaced apart along the width of the road sweeper. Each two-link mechanism includes a longitudinal beam fixed vertically to the vehicle body and a connecting beam hingedly connected to the longitudinal beam at one end, the connecting beam hingedly connected to the collection box at its other end. The first drive member is configured to rotate the connecting beam on the corresponding side relative to the longitudinal beam. The first drive assembly is also configured to drive the collection box to move forward and backward along the length of the vehicle, further improving the road sweeper's adaptability to various unloading conditions.

[0009] Optionally, the first driving member is hinged to the connecting beam, and the hinged connection position of the first driving member to the connecting beam is closer to the end of the connecting beam hinged to the longitudinal beam than to the end of the connecting beam hinged to the collection box. This can reduce the extension of the piston rod while ensuring the lifting height of the collection box.

[0010] Optionally, the first drive assembly further comprises a driven beam, one end of which is hinged to the longitudinal beam and the other end is hinged to the collection box, and the driven beam is parallel to the connecting beam on the corresponding side. Thus, the driven beam, the collection box, the connecting beam, and the longitudinal beam form a parallelogram structure, thereby improving the stability of the collection box.

[0011] Optionally, in the width direction, the collection box is located between the two sets of the two-link mechanisms. When the collection box is located between the two sets of the two-link mechanisms, the overall vehicle length of the road sweeper can be reduced.

[0012] Optionally, the road sweeper structure further includes a feed pipe and a negative pressure source. The collection box is provided with a negative pressure airway having an inlet and an outlet. When the feed pipe is connected to the inlet, the negative pressure source is connected to the outlet. When the feed pipe is disconnected from the inlet, the negative pressure source is disconnected from the outlet. The discharge port is provided in the negative pressure airway. This can increase the integration of the road sweeper and simplify the structure of the road sweeper.

[0013] Optionally, the negative pressure airway is U-shaped, comprising two vertically extending side airway sections and a horizontally extending bottom airway section, with the discharge port located in the bottom airway section; the inlet located in one of the side airways, and the outlet located in the other. This further increases the integration of the collection box and reduces its volume.

[0014] Optionally, a filter is further provided in the negative pressure airway, and the filter is located downstream of the discharge port in the direction of gas flow, thereby ensuring that the garbage is collected in the bottom airway section.

[0015] Optionally, the collecting box includes side walls and a top wall. In the height direction, the top wall is arranged at the top end of the side walls, and the bottom end of the side walls forms the discharge port; in this way, incomplete discharge can be avoided.

[0016] Optionally, the side wall has a constant diameter section and a reduced diameter section in the height direction, the constant diameter section being located above the reduced diameter section, the large diameter end of the reduced diameter section being connected to the constant diameter section, and the small diameter end forming the discharge port. Thus, the reduced diameter section guides the garbage, reduces its falling speed, and reduces dust during the discharge process.

[0017] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0019] Figure 1 This is a partial structural diagram of the working state of the road sweeper in an embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the road sweeper in the unloading state, showing the first step in the unloading state;

[0021] Figure 3 It is a structural diagram of the road sweeper in the unloading state, showing the second step in the unloading state.

[0022] Reference numerals:

[0023] 1-car body; 11-feed pipe; 12-negative pressure source; 2-collection box; 21-top wall; 22-side peripheral wall; 221-equal diameter section; 222-reduced diameter section; 23-cover plate; 24-second driving member; 31-longitudinal beam; 32-connecting beam; 33-driven beam; 34-first driving member. DETAILED DESCRIPTION

[0024] The utility model provides a road sweeper structure, which aims to solve at least one of the problems of incomplete or limited unloading of existing road sweepers by improving the road sweeper structure.

[0025] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Relational terms such as “first” and “second” are used merely to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0027] Please refer to Figures 1 to 3 , Figure 1 This is a partial structural diagram of the working state of the road sweeper in an embodiment of the present utility model; Figure 2 It is a schematic diagram of the structure of the road sweeper in the unloading state, showing the first step in the unloading state; Figure 3 It is a structural diagram of the road sweeper in the unloading state, showing the second step in the unloading state.

[0028] The road sweeper structure comprises a feed pipe 11, a negative pressure source 12, and a collection box 2. The collection box 2 has a material storage chamber for accommodating garbage, at least part of which constitutes a negative pressure airway. The negative pressure airway has an inlet and an outlet. When the feed pipe 11 is connected to the inlet, the negative pressure source 12 is connected to the outlet. When the feed pipe 11 is disconnected from the inlet, the negative pressure source 12 is disconnected from the outlet. Thus, when the collection box 2 is connected to the feed pipe 11 and the negative pressure source 12, the negative pressure source 12 can generate a negative pressure in the negative pressure airway. The negative pressure in the feed pipe 11 is then generated through the negative pressure airway, thereby sucking external garbage into the collection box 2 through the feed pipe 11. This increases the integration of the road sweeper and simplifies its structure.

[0029] The road sweeper structure also includes a vehicle body 1 and a first drive assembly. A collection box 2 is connected to the vehicle body 1 via the first drive assembly. The collection box 2 is not directly connected to the vehicle body 1 as a whole, but is indirectly connected to the vehicle body 1 via the first drive assembly. The first drive assembly is capable of at least driving the collection box 2 vertically and downward relative to the vehicle body 1. In other embodiments, the first drive assembly can not only drive the collection box 2 up and down relative to the vehicle body 1 but also move the collection box 2 forward and backward along the length of the vehicle body 1.

[0030] In a specific embodiment, the first drive assembly includes a first drive member 34 and a rigid chain structure. The rigid chain structure includes several connecting rods forming a quadrilateral. The bottom end of the rigid chain structure is fixedly connected to the vehicle body 1, and the top end is connected to the collection box 2. The first drive member 34 drives the quadrilateral to deform, thereby causing the rigid chain structure to change in the height direction, thereby driving the collection box 2 to move up and down in the height direction.

[0031] In conjunction with the movement of the collection box 2 in the height direction, the collection box 2 has a storage cavity for accommodating garbage. The collection box 2 also has a discharge channel. The discharge channel passes through the wall of the collection box 2, connecting the storage cavity with the outside. The discharge channel extends in the vertical direction. The opening formed by the discharge channel passing through the wall of the collection box 2 is defined as a discharge port. The discharge port is used to discharge to the outside. The discharge port is located at the bottom of the collection box 2, so that during the unloading process, the garbage in the collection box 2 can automatically fall under the action of its own gravity, thereby avoiding the occurrence of incomplete unloading in the conventional method. Optionally, the discharge port is set in the negative pressure air duct, that is, the discharge port is located in the part of the storage cavity that serves as the negative pressure air duct, thereby further improving the integration of the collection box 2.

[0032] Collection box 2 is also equipped with a cover plate 23 that blocks the discharge opening. Cover plate 23 can be flipped relative to collection box 2 to open or close the discharge opening. When discharging, cover plate 23 opens the discharge opening. When not discharging, cover plate 23 blocks the discharge opening, leaving the bottom of collection box 2 closed for collecting garbage. For example, one side of cover plate 23 is hingedly connected to collection box 2. To drive the flipping of cover plate 23 relative to collection box 2, a second drive member 24 is provided. Second drive member 24 can be a pneumatic or hydraulic cylinder, but it can also be a motor or other lid-opening mechanism.

[0033] In one specific embodiment, the negative pressure airway is U-shaped, comprising two vertically extending side airway sections and a horizontally extending bottom airway section, with the discharge port located in the bottom airway section. The inlet is located in one side airway section, and the outlet is located in the other side airway section. In this way, the negative pressure airway serves as a container for the waste, while the discharge port is located in the bottom airway section. When the negative pressure airway is disconnected from the negative pressure source 12, the discharge port can be opened to directly discharge the waste from the bottom airway section. It is understandable that a filter is provided in the negative pressure airway to prevent garbage or dust from being sucked into the negative pressure source 12. The filter can be provided in the bottom airway section, and compared with the discharge port, the filter is located closer to the outlet side of the negative pressure airway, that is, the filter is located downstream of the discharge port in the direction of gas flow, thereby ensuring that garbage is collected in the bottom airway section; the filter can also be provided in the side airway section where the outlet is located, thereby ensuring that when the negative pressure source 12 is disconnected from the negative pressure airway, the garbage can naturally fall into the bottom airway section. Of course, the negative pressure airway can also be S-shaped, L-shaped or other structures, and those skilled in the art can choose at their own discretion.

[0034] By adopting the road sweeper structure in this solution, the discharge port is set at the bottom of the collection box 2; and the collection box 2 can be lifted to a set height through the first drive component, and then the discharge port is opened, and the garbage in the collection box 2 falls under the action of gravity and is discharged; by controlling the first drive component, the collection box 2 can be lifted to different heights, so as to adapt to garbage bins of different heights, thereby improving the adaptability of the road sweeper.

[0035] In the above embodiment, the collection box 2 includes side walls 22 and a top wall 21. In the height direction, the top wall 21 is located at the top of the side walls 22, and the bottom of the side walls 22 forms a discharge opening. The side walls 22 and the top wall 21 form a bottom-opening structure. In other words, the discharge opening coincides with the bottom of the collection box 2, thus preventing incomplete discharge.

[0036] Optionally, the side wall 22 has a constant diameter section 221 and a reduced diameter section 222 in the height direction. The constant diameter section 221 is located above the reduced diameter section 222. The large diameter end of the reduced diameter section 222 is connected to the constant diameter section 221, and the small diameter end forms the discharge port. Thus, the reduced diameter section 222 guides the garbage, reduces the falling speed of the garbage, and reduces dust during the discharge process.

[0037] In another specific embodiment, to further improve the adaptability of the road sweeper to different unloading conditions, the first drive assembly can also drive the collection box 2 to move forward and backward along the length of the vehicle. Specifically, the first drive assembly includes a first drive member 34 and two sets of two-link mechanisms. The two sets of two-link mechanisms are arranged at intervals along the width of the road sweeper, and each set of link mechanisms is driven to move by the corresponding first drive member 34. Each two-link mechanism includes a longitudinal beam 31 fixed vertically to the vehicle body 1 and a connecting beam 32 hinged to the longitudinal beam 31 at one end, and hinged to the collection box 2 at the other end. The longitudinal beam 31 extends in the height direction and is welded to the vehicle body 1, thereby supporting the connecting beam 32 and the collection box 2 connected to the connecting beam 32. The connection point of the connecting beam 32 to the longitudinal beam 31 is located at the top of the longitudinal beam 31. In this embodiment, the connecting beams 32 and the longitudinal beam 31 in the same group are located on the same reference plane. The connecting beams 32 can rotate around the longitudinal beam 31 within this reference plane, which extends along the length of the vehicle.

[0038] The first drive member 34 is hinged to the connecting beam 32. The first drive member 34 is a hydraulic cylinder or pneumatic cylinder, comprising a cylinder body and a piston rod. One of the cylinder body and the piston rod is hinged to the vehicle body 1, and the other is hinged to the connecting beam 32. The piston rod can extend and retract within a reference plane relative to the cylinder body. When the piston rod extends from the cylinder body, it drives the connecting beam 32 to rotate away from the vehicle body 1, increasing the angle between the connecting beam 32 and the longitudinal beam 31. As the collection box 2 is lifted, it also moves backward in the longitudinal direction away from the vehicle body 1. Conversely, when the connecting beam 32 rotates toward the vehicle body 1, the angle between the connecting beam 32 and the longitudinal beam 31 decreases, causing the collection box 2 to fall and move forward toward the vehicle body 1, thereby resetting.

[0039] In this way, when the collecting box 2 moves in the height direction, it can also move backward along the length direction of the road sweeper, that is, move in the direction away from the vehicle body 1. In this way, the vehicle body 1 can be avoided from interfering with the collecting box 2 during the unloading process, providing more operating space for the road sweeper to unload.

[0040] Compared with the end where the connecting beam 32 is hinged to the collection box 2, the position where the first driving member 34 is hinged to the connecting beam 32 is closer to the end where the connecting beam 32 is hinged to the longitudinal beam 31. This can reduce the extension of the piston rod while ensuring the lifting height of the collection box 2.

[0041] In an optional embodiment, the first drive assembly further includes a driven beam 33, one end of which is hinged to the longitudinal beam 31 and the other end is hinged to the collection box 2. The driven beam 33 is parallel to the connecting beam 32 on the corresponding side. Thus, the driven beam 33, the collection box 2, the connecting beam 32, and the longitudinal beam 31 form a parallelogram structure, which improves the stability of the collection box 2.

[0042] In the above embodiment, the connection beam 32 is hinged to the side wall 22 of the collection box 2 at locations opposite to each other in the width direction. In other words, the collection box 2 can be located between the two sets of two-link mechanisms or behind them in the length direction. When the collection box 2 is located between the two sets of two-link mechanisms, the overall length of the road sweeper can be reduced.

[0043] In this application, when the road sweeper is in working condition, Figure 1 As shown, the piston rods of the first driving member 34 and the second driving member 24 are in a fully retracted state, the inlet of the collection box 2 is sealedly connected to the feed pipe 11, and the negative pressure source 12 (such as a centrifugal fan) creates a negative pressure in the feed pipe 11 and the collection box 2 by vacuuming, and the garbage is sucked into the collection box 2 from the feed pipe 11; at this time, the cover 23 of the collection box 2 is in a closed state.

[0044] When the road sweeper is unloading, the piston rod of the first driving member 34 extends, thereby pushing the connecting rod mechanism to move, and the movement of the connecting rod mechanism lifts the collection box 2 to a certain height position; then, as shown in FIG. Figure 3 As shown, the piston rod of the second driving member 24 is fully extended to open the cover 23 and complete the unloading operation. The height of the collection box 2 and the displacement of the collection box 2 moving backward can be controlled by controlling the extension amount of the piston.

[0045] After unloading is completed, the piston rods of the first driving member 34 and the second driving member 24 are retracted to their full strokes, restoring the collection box 2 to the road sweeper working state before unloading.

[0046] By adopting the technical solution of the present application, the road sweeper has a simple structure and is easy to operate; the technology is mature and easy to implement, and it can also replace the traditional manual unloading method with high work efficiency.

[0047] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A road sweeper structure, characterized in that: The vehicle comprises a vehicle body (1), a collection box (2), and a first drive assembly, wherein the collection box (2) is connected to the vehicle body (1) via the first drive assembly, and the first drive assembly is capable of at least driving the collection box (2) to move upward and downward relative to the vehicle body (1); The collecting box (2) is provided with a discharge port for discharging materials to the outside, and the discharge port is located at the bottom of the collecting box (2). The collecting box (2) is also provided with a cover plate (23) for blocking the discharge port, and the cover plate (23) can be moved relative to the collecting box (2) to open or close the discharge port.

2. The road sweeper structure according to claim 1, characterized in that: The first driving assembly comprises a first driving member (34) and two sets of two-link mechanisms, wherein the two sets of two-link mechanisms are arranged at intervals along the width direction of the road sweeper; Each group of the two-link mechanism comprises a longitudinal beam (31) vertically fixed to the vehicle body (1) and a connecting beam (32) hinged to the longitudinal beam (31) at one end, and the other end of the connecting beam (32) is hinged to the collection box (2); The first driving member (34) is used to drive the connecting beam (32) on the corresponding side to rotate relative to the longitudinal beam (31).

3. The road sweeper structure according to claim 2, characterized in that: The first driving assembly further comprises a driven beam (33), one end of the driven beam (33) being hinged to the longitudinal beam (31), and the other end being hinged to the collection box (2), and the driven beam (33) being parallel to the connecting beam (32) on the corresponding side.

4. The road sweeper structure according to claim 2, characterized in that: In the width direction, the collecting box (2) is located between the two sets of the two-link mechanisms.

5. The road sweeper structure according to claim 2, characterized in that: The first driving member (34) is hinged to the connecting beam (32), and the position where the first driving member (34) is hinged to the connecting beam (32) is closer to the end of the connecting beam (32) hinged to the longitudinal beam (31) than the end of the connecting beam (32) hinged to the collecting box (2).

6. The road sweeper structure according to any one of claims 1 to 5, characterized in that: It comprises a feed pipe (11) and a negative pressure source (12), wherein a negative pressure airway is provided in the collection box (2), wherein the negative pressure airway has an inlet and an outlet, wherein the feed pipe (11) is connected to the inlet and the negative pressure source (12) is connected to the outlet, and the cover plate (23) closes the discharge port.

7. The road sweeper structure according to claim 6, characterized in that: The negative pressure airway is in a U-shaped structure, including two side airway sections extending in a vertical direction and a bottom airway section extending in a horizontal direction, and the discharge port is arranged in the bottom airway section.

8. The road sweeper structure according to claim 7, characterized in that: A filter is also provided in the negative pressure airway. The filter is located downstream of the discharge port in the flow direction of the gas.

9. The road sweeper structure according to any one of claims 1 to 5, characterized in that: The collecting box (2) comprises a side peripheral wall (22) and a top wall (21); in the height direction, the top wall (21) is arranged at the top end of the side peripheral wall (22), and the bottom end of the side peripheral wall (22) forms the discharge port.

10. The road sweeper structure according to claim 9, characterized in that: The side peripheral wall (22) has a constant diameter section (221) and a reduced diameter section (222) in the height direction, the constant diameter section (221) is located on the upper side of the reduced diameter section (222), the large diameter end of the reduced diameter section (222) is connected to the constant diameter section (221), and the small diameter end forms the discharge port.

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