Pedestrian crossing cleaner

Abstract

The present invention discloses a pedestrian crossing sweeper, comprising a driving unit, a suction unit connected to the driving unit by transmission, a cleaning unit arranged at the air inlet of the suction unit, and a collecting unit arranged at the exhaust port of the suction unit; the suction unit can suck air through the cleaning unit under the drive of the driving unit, and discharge the air into the collecting unit. The overall structure of the present invention is small in size, easy to operate and use, can replace traditional manual operations, improve the efficiency of cleaning operations, and improve the safety during the operation process.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection equipment, in particular to a pedestrian crossing sweeper. Background Art

[0002] At present, most of the road cleaning work is still done manually by environmental workers using brooms, which is not only time-consuming and labor-intensive, but also poses safety hazards. Although road cleaning vehicles have appeared and are used in the current market, they are not conducive to full popularization due to their large size and high cost. Therefore, there is a market demand for a small, portable and flexible cleaning device. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing sweepers, the present invention is proposed.

[0005] Therefore, one of the objects of the present invention is to provide a crosswalk sweeper that can replace manual sweeping operations and improve efficiency and safety.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pedestrian crossing sweeper, which includes a driving unit, a suction unit transmission-connected to the driving unit, a cleaning unit arranged at the air inlet of the suction unit, and a collecting unit arranged at the exhaust port of the suction unit; the suction unit, driven by the driving unit, can suck air through the cleaning unit and discharge the air into the collecting unit.

[0007] As a preferred solution of the pedestrian crossing sweeper described in the present invention, wherein: the cleaning unit includes an adsorption port assembly, the adsorption port assembly includes a docking plate connected to the air inlet and a first adsorption end and a second adsorption end fixed on the outer side of the docking plate; the docking plate has a first opening and a second opening corresponding to the first adsorption end and the second adsorption end, respectively.

[0008] As a preferred embodiment of the pedestrian crossing sweeper described in the present invention, the cleaning unit further comprises a connecting plate having an eccentric hole thereon; a docking ring is provided at the air inlet of the suction unit, one side of the connecting plate is connected to the outer end of the docking ring, and the other side is connected to the inner side of the docking plate, and the connecting plate can rotate relative to the docking plate so that the eccentric hole is opposite to the first opening or the second opening.

[0009] As a preferred embodiment of the pedestrian crossing sweeper of the present invention, a first annular protrusion and a second annular protrusion are symmetrically arranged on both side surfaces of the connecting plate, and the outer edges of the cross sections of both are major arcs; a first annular groove corresponding to the first annular protrusion is provided on the outer end of the docking ring, and a second annular groove corresponding to the second annular protrusion is provided on the inner side surface of the docking plate; the first annular protrusion is embedded in the first annular groove and can rotate relative to each other, and the two annular protrusions are embedded in the second annular groove and can rotate relative to each other.

[0010] As a preferred embodiment of the pedestrian crossing sweeper described in the present invention, hinge seats are evenly distributed on the outer side wall of the docking ring along the circumferential direction, a first connecting rod is connected to the hinge seat, a second connecting rod is hinged to the outer end of the first connecting rod, slots corresponding to the second connecting rods are distributed on the outer edge of the docking plate, and embedding grooves corresponding to the first connecting rods are distributed on the outer edge of the connecting plate, the first connecting rod can be rotated around the hinge seat and embedded in the corresponding embedding groove, and the end of the second connecting rod is inserted into the corresponding slot.

[0011] As a preferred solution of the crosswalk sweeper described in the present invention, the cleaning unit further includes a limiting ring, a first internal thread is provided on the inner side of the limiting ring, a first external thread matching with the first internal thread is provided on the outer side surface of each first connecting rod, and the limiting ring can be fixed to the periphery of each first connecting rod by matching the threads to form a limit.

[0012] As a preferred embodiment of the pedestrian crossing sweeper described in the present invention, the collection unit includes a conveying pipe connected to the exhaust port at one end, a fixed end connected to the other end of the conveying pipe, a containing bag connected to the lower end of the fixed end, and an extrusion ring sleeved on the periphery of the fixed end; the fixed end includes a horizontal top plate and a circle of side plates located on the periphery of the top plate, the outer diameter of the lower end of the side plate is larger than the outer diameter of the upper end, and larger than the inner diameter of the lower end of the extrusion ring; a docking port connected to the conveying pipe is provided on the top plate; the upper end of the containing bag is open, and its upper end is sleeved on the periphery of the lower end of the fixed end, and is clamped between the extrusion ring and the side plates.

[0013] As a preferred embodiment of the pedestrian crossing sweeper of the present invention, windows are distributed circumferentially on the extrusion ring, and an outward protrusion is fixed to the bottom of each window; a hanging ring corresponding to each protrusion is fixed to the edge of the upper end of the accommodating bag, and each hanging ring passes through the corresponding window and is hooked on the corresponding protrusion; a damping area is provided on the inner side surface of the lower end of the extrusion ring, and the upper end of the accommodating bag is clamped between the damping area and the side plate.

[0014] As a preferred solution of the pedestrian crossing sweeper of the present invention, the outer end of the first adsorption end is fixed with a first adsorption nozzle bent downward, the outer end of the second adsorption end can be selectively connected to a detachable suction pipe, and the end of the suction pipe is fixed with a second adsorption nozzle.

[0015] As a preferred solution of the crosswalk sweeper described in the present invention, it also includes a walking unit, which includes a frame and walking wheels and turning wheels fixed to the lower part of the frame; the driving unit and the suction unit are fixed to the upper part of the frame, and a handrail is also fixed on the frame.

[0016] The beneficial effects of the present invention are as follows: the overall structure of the present invention is small in size, easy to operate and use, can replace traditional manual operations, improve the efficiency of cleaning operations, and improve the safety during the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is the overall structure diagram of the pedestrian crossing sweeper.

[0019] Figure 2 This is the internal structure diagram of the cleaning unit and its local structure details.

[0020] Figure 3 Exploded view of the cleaning unit.

[0021] Figure 4 This is the internal structure diagram of the collection unit and its local structure details. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Reference Figures 1 to 3 , which is the first embodiment of the present invention, provides a crosswalk cleaner, which can perform adsorption cleaning work on crosswalks or other road sections. The cleaner of the present invention is small in size, easy to operate manually, and has diversified functions.

[0026] The crosswalk sweeper includes a driving unit 100 , a suction unit 200 drivingly connected to the driving unit 100 , a cleaning unit 300 disposed at an air inlet 201 of the suction unit 200 , and a collecting unit 400 disposed at an air outlet 202 of the suction unit 200 .

[0027] The suction unit 200 can suck air through the cleaning unit 300 under the drive of the driving unit 100, and discharge the air into the collecting unit 400. Therefore, the garbage on the road surface can be sucked into the collecting unit 400 by the cleaning unit 300 due to the negative pressure of the air.

[0028] The driving unit 100 may be a motor, and the suction unit 200 may be a blower. The suction unit 200 is driven by the driving unit 100 and realizes the air extraction and exhaust process under the drive of the driving unit 100.

[0029] Furthermore, the crosswalk sweeper further comprises a walking unit 500, which comprises a horizontal frame 501 and a walking wheel 502 and a turning wheel 503 fixed at the lower part of the frame 501. The driving unit 100 and the air suction unit 200 are both fixed at the upper part of the frame 501, so that the crosswalk sweeper can clean the road surface while walking. Preferably, a handrail 504 is also fixed at the rear end of the frame 501, so that the user can push the sweeper forward as a whole.

[0030] The cleaning unit 300 includes an adsorption port assembly 301. The adsorption port assembly 301 includes a docking plate 301a connected to the air inlet 201 and a first adsorption end 301b and a second adsorption end 301c vertically fixed on the outer side of the docking plate 301a. The main body of the docking plate 301a is a vertically arranged disc structure, and the first adsorption end 301b and the second adsorption end 301c are both internally transparent interfaces, and the two are arranged side by side. The docking plate 301a has a first opening 301a-1 and a second opening 301a-2 corresponding to the first adsorption end 301b and the second adsorption end 301c, respectively, so as to facilitate the connection between the first adsorption end 301b or the second adsorption end 301c and the air inlet 201.

[0031] The outer end of the first suction end 301b is fixed with a first suction nozzle 301b-1 that is bent downward. The first suction nozzle 301b-1 can be a bell mouth or other forms of suction mouth to facilitate the suction of garbage. The outer end of the second suction end 301c can be selectively connected to a detachable suction pipe 301c-1 (which can be threaded or bound by a clamp), and the end of the suction pipe 301c-1 is fixed with a second suction nozzle 301c-2. The suction pipe 301c-1 is a flexible pipe with a long length. The user can choose not to install the suction pipe 301c-1, but only use the first suction nozzle 301b-1 for cleaning; or connect the second suction end 301c, and externally connect the suction pipe 301c-1 and the second suction nozzle 301c-2 to clean the area.

[0032] Furthermore, the cleaning unit 300 further includes a connection plate 302, which is a vertically arranged circular disc structure with an eccentric hole 302a thereon, and a connection ring 201a of an annular structure is arranged at the air inlet 201 of the air suction unit 200. One side of the connection plate 302 is connected to the outer end of the connection ring 201a, and the other side is connected to the inner side of the connection plate 301a, and the connection plate 302 can rotate relative to the connection plate 301a, so that the eccentric hole 302a can be rotated and adjusted to face the first opening 301a-1 or the second opening 301a-2.

[0033] When the eccentric hole 302a rotates to be opposite to the first opening 301a-1 (the second opening 301a-2 is blocked), the first adsorption end 301b is connected to the air inlet 201 and can be used; when the eccentric hole 302a rotates to be opposite to the second opening 301a-2 (the first opening 301a-1 is blocked), the second adsorption end 301c is connected to the air inlet 201 and can be used.

[0034] Preferably, a first annular protrusion 302b and a second annular protrusion 302c of the same structure are symmetrically arranged on both sides of the connecting plate 302, and the outer edges of the cross sections of both are major arcs. The outer end of the docking ring 201a has a first annular groove 201a-1 corresponding to the first annular protrusion 302b, and the first annular groove 201a-1 is a groove structure matched with the first annular protrusion 302b; the inner side surface of the docking plate 301a has a second annular groove 301a-3 corresponding to the second annular protrusion 302c, and the second annular groove 301a-3 is a groove structure matched with the second annular protrusion 302c.

[0035] The first annular protrusion 302b is embedded in the first annular groove 201a-1 and can rotate relatively, and the second annular protrusion 302c is embedded in the second annular groove 301a-3 and can rotate relatively, so as to realize the rotation adjustment process of the adapter plate 302.

[0036] Furthermore, in order to enable the adapter plate 302 to maintain the adjusted state after rotation adjustment, the present invention also includes the following technical solutions:

[0037] The outer wall of the docking ring 201a is evenly distributed with hinge seats 201a-2 along the circumferential direction, and each hinge seat 201a-2 is connected to a first connecting rod 201a-3. The inner end of each first connecting rod 201a-3 is hinged to the corresponding hinge seat 201a-2, and the outer end of each first connecting rod 201a-3 is also hinged to a second connecting rod 201a-4. The outer edge of the docking plate 301a is provided with slots 301a-4 corresponding to each second link 201a-4, and the outer edge of the connecting plate 302 is provided with embedding grooves 302d corresponding to each first link 201a-3. Each first link 201a-3 can rotate around the corresponding hinge seat 201a-2 and embed into the corresponding embedding groove 302d, so that the end of the second link 201a-4 is finally inserted into the corresponding slot 301a-4. At this time, the angle between the first link 201a-3 and the second link 201a-4 is an acute angle.

[0038] The cleaning unit 300 also includes a limiting ring 303 of an annular structure, the inner side of the limiting ring 303 is provided with a first internal thread 303a, and the outer side surface of each first connecting rod 201a-3 is provided with a first external thread 201a-31 that cooperates with the first internal thread 303a. The limiting ring 303 can be clamped on the periphery of each first connecting rod 201a-3 through the mating clamp of the thread, thereby limiting the first connecting rod 201a-3 and fixing itself.

[0039] When the connecting plate 302 needs to be adjusted again, the limiting ring 303 can be rotated in the reverse direction to disengage it from each first connecting rod 201a-3, so as to open the first connecting rod 201a-3, pull out the second connecting rod 201a-4, and realize unlocking.

[0040] In summary, the present invention can choose to work with the first suction nozzle 301b-1 or the second suction nozzle 301c-2 as needed. The first suction nozzle 301b-1 cooperates with the walking unit 500 to be more conducive to cleaning flat roads, and the sweeper as a whole can clean the road surface while moving; when the road surface is uneven or only a certain area is to be cleaned, the sweeper as a whole can be kept stationary, and manual operation can be performed through the external suction pipe 301c-1 and the second suction nozzle 301c-2, and the construction personnel can hold the second suction end 301c to flexibly clean the area to be cleaned.

[0041] In the present invention, the collection unit 400 includes a delivery pipe 401 connected to the exhaust port 202 at one end, a fixed end 402 connected to the other end of the delivery pipe 401, a containing bag 403 connected to the lower end of the fixed end 402, and an extrusion ring 404 sleeved on the outer periphery of the fixed end 402.

[0042] The delivery pipeline 401 is a rigid pipeline, which may be a steel pipe, and can support a certain weight, so it also acts as a cantilever beam.

[0043] The fixed end 402 includes a horizontal circular top plate 402a and an annular side plate 402b located around the top plate 402a, and the extrusion ring 404 is a circular ring structure. The present invention provides that: the outer diameter of the lower end of the side plate 402b is greater than the outer diameter of the upper end, forming a slope; at the same time, the outer diameter of the lower end of the side plate 402b is greater than the inner diameter of the lower end of the extrusion ring 404, so that the extrusion ring 404 sleeved on the outer periphery of the side plate 402b cannot slide off the lower end of the side plate 402b, and the slope of the side plate 402b acts as a limiter for the extrusion ring 404. A docking port 402a-1 connected to the delivery pipe 401 is provided at the center of the top plate 402a (the docking port 402a-1 and the lower end of the delivery pipe 401 can be threadedly connected to achieve detachability).

[0044] The storage bag 403 is made of a breathable non-woven bag or a sack, and can be replaced at any time when damaged. The upper end of the storage bag 403 is open, and its upper end is sleeved on the outer periphery of the lower end of the side plate 402b, so that if the squeezing ring 404 is moved downward, the squeezing ring 404 can be clamped on the outer periphery of the upper end of the storage bag 403, and the upper end of the storage bag 403 is pressed tightly against the slope of the side plate 402b.

[0045] Furthermore, transparent windows 404a are distributed along the circumference of the extrusion ring 404, and a protrusion 404b is fixed to the bottom of each window 404a. At the same time, a hanging ring 403a (flexible closed rope) corresponding to each protrusion 404b is fixed to the edge of the upper end of the storage bag 403. Each hanging ring 403a passes through the corresponding window 404a and is hooked on the corresponding protrusion 404b, which can ensure that the storage bag 403 is further fixed on the fixed end 402, and has more stability.

[0046] A damping area 404c is provided on the inner side surface of the lower end of the squeezing ring 404, and the damping area 404c is an annular rough surface on the inner side of the squeezing ring 404. Therefore, the upper end of the accommodation bag 403 can be clamped between the damping area 404c and the side plate 402b. When the accommodation bag 403 has a tendency to fall, it can drag the squeezing ring 404 downward through the greater friction between it and the damping area 404c, which in turn further increases the pressing effect of the squeezing ring 404 on the accommodation bag 403.

[0047] In another embodiment, the inner wall of the upper end of the extrusion ring 404 has a second internal thread 404d, and the outer surface of the upper end of the side plate 402b has a second external thread 402b-1 that matches the second internal thread 404d, thereby facilitating the matching connection between the extrusion ring 404 and the fixed end 402, and facilitating the pressure adjustment of the lower end of the extrusion ring 404 on the containing bag 403.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pedestrian crossing sweeper, characterized in that: It comprises a driving unit (100), a suction unit (200) drivingly connected to the driving unit (100), a cleaning unit (300) arranged at an air inlet (201) of the suction unit (200), and a collecting unit (400) arranged at an air outlet (202) of the suction unit (200); The suction unit (200), driven by the driving unit (100), can suck air through the cleaning unit (300) and discharge the air into the collecting unit (400); The cleaning unit (300) comprises an adsorption port assembly (301), wherein the adsorption port assembly (301) comprises a docking plate (301a) connected to the air inlet (201), and a first adsorption end (301b) and a second adsorption end (301c) fixed on the outer side of the docking plate (301a); The docking plate (301a) has a first opening (301a-1) and a second opening (301a-2) corresponding to the first adsorption end (301b) and the second adsorption end (301c), respectively; The cleaning unit (300) further comprises a connection plate (302), wherein the connection plate (302) has an eccentric hole (302a); A docking ring (201a) is provided at the air inlet (201) of the air suction unit (200); one side of the docking plate (302) is connected to the outer end of the docking ring (201a), and the other side is connected to the inner side of the docking plate (301a); and the docking plate (302) can rotate relative to the docking plate (301a), so that the eccentric hole (302a) is directly opposite to the first opening (301a-1) or the second opening (301a-2); A first annular protrusion (302b) and a second annular protrusion (302c) are symmetrically arranged on both side surfaces of the connecting plate (302), and the outer edges of the cross sections of both are major arcs; a first annular groove (201a-1) corresponding to the first annular protrusion (302b) is provided on the outer end of the docking ring (201a), and a second annular groove (301a-3) corresponding to the second annular protrusion (302c) is provided on the inner side surface of the docking plate (301a); The first annular protrusion (302b) is embedded in the first annular groove (201a-1) and can rotate relative to each other, and the second annular protrusion (302c) is embedded in the second annular groove (301a-3) and can rotate relative to each other; A hinge seat (201a-2) is evenly distributed along the circumferential direction on the outer side wall of the docking ring (201a); a first connecting rod (201a-3) is connected to the hinge seat (201a-2); a second connecting rod (201a-4) is hingedly connected to the outer end of the first connecting rod (201a-3); slots (301a-4) corresponding to the second connecting rods (201a-4) are distributed on the outer edge of the docking plate (301a); and embedding grooves (302d) corresponding to the first connecting rods (201a-3) are distributed on the outer edge of the connecting plate (302); the first connecting rod (201a-3) can rotate around the hinge seat (201a-2) and embed into the corresponding embedding groove (302d), and the end of the second connecting rod (201a-4) is inserted into the corresponding slot (301a-4); The cleaning unit (300) further comprises a limiting ring (303), the inner side of which is provided with a first internal thread (303a), and the outer side surface of each of the first connecting rods (201a-3) is provided with a first external thread (201a-31) which cooperates with the first internal thread (303a), and the limiting ring (303) can be fixed on the periphery of each of the first connecting rods (201a-3) by means of thread cooperation to form a limit.

2. The pedestrian crossing sweeper according to claim 1, characterized in that: The collecting unit (400) comprises a conveying pipe (401) having one end connected to the exhaust port (202), a fixed end (402) connected to the other end of the conveying pipe (401), a containing bag (403) connected to the lower end of the fixed end (402), and an extrusion ring (404) sleeved on the outer periphery of the fixed end (402); The fixed end (402) comprises a horizontal top plate (402a) and a circle of side plates (402b) located on the periphery of the top plate (402a), wherein the outer diameter of the lower end of the side plate (402b) is greater than the outer diameter of the upper end, and is greater than the inner diameter of the lower end of the extrusion ring (404); The top plate (402a) is provided with a docking port (402a-1) connected to the conveying pipe (401); the upper end of the containing bag (403) is open, and its upper end is sleeved on the periphery of the lower end of the fixed end (402) and is clamped between the extrusion ring (404) and the side plate (402b).

3. The pedestrian crossing sweeper according to claim 2, characterized in that: The extrusion ring (404) is provided with windows (404a) distributed along the circumferential direction, and a protrusion (404b) protruding outwards is fixed at the bottom of each window (404a); A hanging ring (403a) corresponding to each protrusion (404b) is fixed to the edge of the upper end of the containing bag (403), and each hanging ring (403a) passes through the corresponding window (404a) and is hooked on the corresponding protrusion (404b); A damping area (404c) is provided on the inner side surface of the lower end of the extrusion ring (404), and the upper end of the accommodating bag (403) is clamped between the damping area (404c) and the side plate (402b).

4. The pedestrian crossing sweeper according to claim 1, characterized in that: The outer end of the first adsorption end (301b) is fixed with a first adsorption nozzle (301b-1) bent downward, the outer end of the second adsorption end (301c) can be selectively connected to a detachable suction pipe (301c-1), and the end of the suction pipe (301c-1) is fixed with a second adsorption nozzle (301c-2).

5. The pedestrian crossing sweeper according to claim 1, characterized in that: It also includes a walking unit (500), wherein the walking unit (500) includes a frame (501) and walking wheels (502) and a direction-changing wheel (503) fixed to the lower part of the frame (501); The driving unit (100) and the air suction unit (200) are fixed to the upper part of the vehicle frame (501), and a support rod (504) is also fixed to the vehicle frame (501).

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