A suction nozzle assembly for a sanitation vehicle

Abstract

The present invention discloses a suction nozzle assembly for a sanitation vehicle, which relates to the technical field of road cleaning equipment; it comprises: a dust hood, which is provided with a dust suction port; a suction pipe, which is connected to the dust hood, and the suction pipe corresponds to the position of the dust suction port; an air guide tube, which has two air guide tubes, which are symmetrically arranged on both sides of the suction pipe axis, and each of the air guide tubes is rotatably arranged on the dust hood; a rotating joint, which has two rotating joints, which are both arranged on the dust hood; the rotating ends of the two rotating joints are respectively connected to the two air guide tubes, and the ends of the two rotating joints away from the air guide tubes are connected to an external air source, and the two rotating joints are respectively coaxial with the two air guide tubes; the present invention can reduce the blockage of the dust suction port and has good adsorption capacity.

Description

Technical Field

[0001] The invention relates to the technical field of road cleaning equipment, in particular to a suction nozzle assembly for a sanitation vehicle. Background Art

[0002] Sanitation vehicles are mainly used for cleaning, watering, garbage removal and other tasks on urban roads. The suction nozzle assembly of the sanitation vehicle is an important component of the sanitation vehicle, which is mainly used to suck the cleaned fallen leaves, branches and other objects into the garbage bin; however, when the existing suction nozzle assembly is sucking dust objects, longer objects are easy to block the suction port, and the existing suction nozzle assembly has a relatively single force on the object, and some objects are easy to fall off during the suction process. Summary of the invention

[0003] The object of the present invention is to provide a suction nozzle assembly for a sanitation vehicle, which has good adsorption capacity.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a nozzle assembly for a sanitation vehicle, comprising:

[0005] A dust suction hood, wherein the dust suction hood is provided with a dust suction port;

[0006] A suction pipe, the suction pipe is connected to the dust hood, and the position of the suction pipe corresponds to the dust suction port;

[0007] There are two air guide tubes, the two air guide tubes are symmetrically arranged on both sides of the suction pipe axis, and each of the air guide tubes is rotatably arranged on the dust cover;

[0008] Rotary joints, there are two of the rotary joints, both of which are arranged on the dust hood; the rotating ends of the two rotary joints are respectively connected to the two air guide tubes, the ends of the two rotary joints away from the air guide tubes are connected to the external air source, and the two rotary joints are respectively coaxial with the two air guide tubes;

[0009] A driving assembly, wherein the driving assembly has two, the two driving assemblies respectively drive the two air guide cylinders to rotate, and the two driving assemblies are both arranged on the dust hood;

[0010] An air duct assembly, wherein a plurality of the air duct assemblies are arranged on the air guide cylinder, and the plurality of the air duct assemblies are evenly distributed along the circumference of the axis of the air guide cylinder;

[0011] Wherein, the air duct assembly comprises a plurality of air ducts, the plurality of air ducts are evenly spaced along the axis of the air duct, and the axis of each air duct is perpendicular to the axis of the air duct;

[0012] One end of each air guide tube is connected to the air guide cylinder, and one end of each air guide tube away from the air guide cylinder is provided with a plurality of hook-shaped blades;

[0013] Each of the air ducts is provided with a plurality of air holes, and the plurality of air holes are arranged at intervals along the length direction of the air duct.

[0014] Further, the dust hood comprises:

[0015] baffles, wherein the baffles are provided in two pieces and the two baffles are arranged in parallel;

[0016] A top plate, the top plate is arranged between the two baffles, the top plate is provided with a through hole adapted to the straw, and the straw is fixed in the through hole;

[0017] An arc-shaped plate, one of the arc-shaped plates is disposed at each end of the top plate, and the arc-shaped plate is disposed between the two baffles;

[0018] The two air guide tubes are coaxial with the two arc-shaped plates respectively, and one end of the two arc-shaped plates away from the top plate and the bottom ends of the two baffles surround to form the dust suction port.

[0019] Furthermore, the dust hood also includes:

[0020] The fixing sleeve has two fixing sleeves, the two rotating joints are respectively arranged on the two fixing sleeves, and the two fixing sleeves are arranged on baffles adjacent to the rotating joints.

[0021] Furthermore, it also includes:

[0022] Strip blade one, a plurality of strip blades one are arranged outside each air guide tube, and the air holes on the air guide tube are located between two adjacent strip blades one.

[0023] Furthermore, it also includes:

[0024] A support rod, wherein the support rod has a plurality of top ends of the plurality of support rods, and the top ends of the plurality of support rods are fixed on the dust cover; the plurality of support rods are evenly spaced along the axis of the air guide tube, and the plurality of air guide tubes included in the air duct assembly are staggered with the plurality of support rods;

[0025] Strip-shaped blade 2, each support rod is provided with the strip-shaped blade 2 on one side.

[0026] Furthermore, the air guide tube includes:

[0027] A central tube, the central tube is located between the two baffles;

[0028] A connecting cylinder, which is disposed between the central cylinder and the rotating end of the rotating joint, and the connecting cylinder, the rotating joint and the central cylinder are coaxial;

[0029] A connecting column, wherein the connecting column is coaxially arranged at an end of the central tube away from the connecting tube;

[0030] Wherein, the connecting tube penetrates a baffle plate adjacent to the rotating joint, the connecting tube is rotatably arranged on a baffle plate adjacent to the rotating joint, and the connecting column is rotatably arranged on another baffle plate.

[0031] Further, the driving assembly comprises:

[0032] A driving motor, wherein the driving motor is disposed on a baffle plate adjacent to the connecting column, and an output shaft of the driving motor is fixedly connected to the connecting column;

[0033] Wherein, the output shaft of the driving motor is coaxial with the connecting column.

[0034] Furthermore, a first connecting bracket is provided on the top plate, and a second connecting bracket is provided on one of the baffles.

[0035] Compared with the prior art, the beneficial effects achieved by the present invention are as follows.

[0036] 1. During the rotation of the air guide tube, the airflow ejected from the air hole has a certain upward pushing force on the inhaled object, which can facilitate the object to be sucked into the straw.

[0037] 2. By providing an arc plate and cooperating with the rotation of the air guide pipe, it is convenient to guide the airflow to generate a driving force on the inhaled object, which helps to improve the overall adsorption capacity.

[0038] 3. The air duct is provided with a hook-shaped blade and a strip-shaped blade, which is convenient for cutting longer objects during the rotation of the air duct, thereby reducing or avoiding the blockage of the dust suction port. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0040] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0041] Figure 2 It is a schematic diagram of the structure of the first embodiment as a whole from another angle.

[0042] Figure 3 It is a schematic diagram of the installation of the air duct assembly and the air guide tube of the first embodiment of the present invention.

[0043] Figure 4 It is an exploded view of the dust hood of the first embodiment of the present invention.

[0044] Figure 5 It is a schematic diagram of the coordination of the air guide tube, the air duct assembly, the support rod, the drive assembly and the rotary joint according to the first embodiment of the present invention.

[0045] Figure 6 It is a schematic diagram of the cooperation between the air guide tube, the fixed sleeve and the rotary joint in the first embodiment of the present invention.

[0046] Figure 7 It is a schematic diagram of the cooperation between the air guide tube and the rotary joint according to the first embodiment of the present invention.

[0047] Figure 8 It is a schematic diagram of the installation of the drive motor of the second embodiment of the present invention.

[0048] Fig. 9 It is a schematic diagram of the overall structure of embodiment 3 of the present invention.

[0049] Explanation of the reference numerals: 1. dust hood; 11. baffle; 12. top plate; 121. through hole; 13. arc plate; 131. roller mounting bracket; 14. dust suction port; 15. fixed sleeve; 2. suction tube; 3. rotary joint; 4. drive assembly; 41. drive motor; 42. protective cover; 5. air guide tube; 51. center tube; 52. connecting tube; 53. connecting column; 6. air duct assembly; 61. air guide tube; 611. air hole; 62. hook-shaped blade; 63. strip blade one; 7. support rod; 71. strip blade two; 8. first connecting bracket; 81. long hole; 9. second connecting bracket; 91. mounting hole. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Embodiment 1

[0052] See also Figure 1-Figure 3 The present invention provides a technical solution: a nozzle assembly for a sanitation vehicle, comprising a dust hood 1, a dust suction port 14 is arranged on the dust hood 1, a suction pipe 2 is connected to the dust hood 1, the suction pipe 2 corresponds to the position of the dust suction port 14, and the suction pipe 2 is used to connect the dust suction device on the sanitation vehicle; two air guide tubes 5 are arranged inside the dust hood 1, the two air guide tubes 5 are symmetrically arranged on both sides of the axis of the suction pipe 2, the two air guide tubes 5 are rotatably arranged on the dust hood 1, and one end of each air guide tube 5 is connected to a rotary joint 3, and the rotary joint 3 is used to connect to an external air source; the other end of each air guide tube 5 is connected to a driving assembly 4, and the driving assembly 4 is used to drive the air guide tube 5 to rotate around the axis of the air guide tube 5; an air duct assembly 6 is arranged on the air guide tube 5, such as Figure 3As shown, four air duct assemblies 6 are arranged outside the air guide cylinder 5 , and the four air duct assemblies 6 are evenly distributed along the circumference of the axis of the air guide cylinder 5 .

[0053] See also Figure 2 , Figure 3 as well as Figure 4 The dust hood 1 includes two baffles 11 arranged in parallel, one of which is provided with two fixed sleeves 15, a top plate 12 is arranged between the two baffles 11, and curved plates 13 are fixedly arranged at both ends of the top plate 12, and the curved plates 13 are also located between the two baffles 11; the two curved plates 13 are coaxial with the two air guide tubes 5 respectively, that is, the two curved plates 13 are symmetrically arranged on both sides of the axis of the suction pipe 2; one end of the two curved plates 13 away from the top plate 12 and the bottom ends of the two baffles 11 form a dust suction port 14, and both ends of each curved plate 13 deviate from the vertical plane where the axis of the air guide tube 5 is located, and the distance between the end of the curved plate 13 away from the top plate 12 and the axis of the suction pipe 2 is smaller than the distance between the end of the curved plate 13 connected to the top plate 12 and the axis of the suction pipe 2.

[0054] See also Figure 3 as well as Figure 5-Figure 7 The air guide tube 5 includes a central tube 51, which is located between the two baffles 11, and the two ends of the central tube 51 do not contact the two baffles 11; the two ends of the air guide tube 5 are coaxially provided with a connecting tube 52 and a connecting column 53, respectively, the connecting tube 52 is connected to the air guide tube 5, and the connecting tube 52 penetrates the baffle 11 provided with the fixing sleeve 15, and the connecting tube 52 is movably connected to the baffle 11 through a bearing, and the end of the connecting tube 52 away from the air guide tube 5 is fixedly connected to the rotating end of the rotating joint 3; the connecting column 53 is a solid structure, the connecting column 53 penetrates another baffle 11 (i.e., the baffle 11 without the fixing sleeve 15), and a bearing is arranged between the connecting column 53 and the baffle 11, the connecting column 53 is connected to the driving assembly 4, and the driving assembly 4 is installed on the baffle 11 adjacent to the connecting column 53; the driving assembly 4 is used to drive the connecting column 53 to rotate around the axis of the connecting column 53, so as to realize the driving of the air guide tube 5 to rotate along its own axis, and the two driving assemblies 4 drive the two air guide tubes 5 to rotate in opposite directions, that is, Figure 3 shown.

[0055] See also Figure 3-Figure 7A through hole 121 adapted to the bottom end of the suction pipe 2 is penetrated through the top plate 12, and the bottom end of the suction pipe 2 is fixedly arranged in the through hole 121; parts of the two rotary joints 3 are respectively passed through the two fixed sleeves 15, and the two rotary joints 3 are respectively installed on the two fixed sleeves 15, and the rotary joint 3 has an air inlet end and an air outlet end, and the air outlet end is rotatable. Each rotary joint 3 is coaxial with the corresponding connecting tube 52, and the air outlet end of the rotary joint 3 is fixedly connected to the connecting tube 52; the air inlet end of the rotary joint 3 is used to connect to an external air source; specifically, the blower can be installed on the sanitation vehicle, and the air inlet end of the rotary joint 3 is connected to the blower through a duct, so as to realize the introduction of a pressurized air source into the air guide tube 5.

[0056] The air duct assembly 6 includes a plurality of air ducts 61, which are evenly spaced along the axis of the air duct 5; one end of each air duct 61 penetrates the outer wall of the central tube 51, so that the air duct 61 is connected to the central tube 51; one end of each air duct 61 away from the air duct 5 is sealed, and one end of each air duct 61 away from the air duct 5 is provided with a plurality of hook-shaped blades 62, such as Figure 5 As shown, three hook-shaped blades 62 are provided at the end of each air duct 61, and the three hook-shaped blades 62 are arranged in parallel and at intervals; at the same time, a plurality of air holes 611 are arranged through the air duct 61, and the plurality of air holes 611 are arranged at intervals along the length direction of the air duct 61.

[0057] Each air duct 61 is also provided with a plurality of strip blades 63 on the outside. The strip blades 63 are vertically arranged on the outer annular surface of the air duct 61. The length direction of the strip blades 63 is parallel to the axis of the air duct 61. The air holes 611 on the air duct 61 are located between two adjacent strip blades 63.

[0058] A plurality of support rods 7 are fixedly provided at the bottom of the top plate 12, and the support rods 7 are arranged vertically; a plurality of air guide tubes 61 included in the same air duct assembly 6 are arranged side by side, wherein the areas between each adjacent two air guide tubes 61 correspond one to one with the support rods 7, that is, the plurality of air guide tubes 61 included in each air duct assembly 6 are staggered with the plurality of support rods 7; a strip blade 2 71 is fixedly provided on one side of each support rod 7 close to the axis of the suction tube 2.

[0059] When the air duct 61 rotates to a horizontal state following the air duct tube 5, and one end of the air duct 61 with the hook-shaped blade 62 is close to the axis of the suction pipe 2, at this time, the distance between the end of the air duct 61 with the hook-shaped blade 62 and the axis of the suction pipe 2 is smaller than the distance between the end of the arc plate 13 away from the top plate 12 and the axis of the suction pipe 2; that is, at this time, the end of the air duct 61 with the hook-shaped blade 62 is located in the area directly above the dust suction port 14.

[0060] See also Figure 1-Figure 7In this embodiment, fallen leaves, branches and other objects on the road are sucked in through the suction port 14, and a pressure air source is introduced into the rotary joint 3. Under the action of the connecting tube 52, the air flow is introduced into the central tube 51. Since the air guide pipe 61 is connected to the central tube 51, the air hole 611 sprays air. At the same time, the driving motor 41 drives the connecting column 53 to rotate, so as to drive the entire air guide tube 5 to rotate around its own axis. When the air guide pipe 61 moves from the axis of the air guide tube 5 directly below the axis toward the axis of the suction pipe 2 to the horizontal state (the air guide pipe 61 is in the vertical state and Except in the horizontal state), the air flow ejected from the air holes 611 on the air guide pipe 61 has a certain upward pushing force on the sucked object, which can facilitate the object to be sucked into the suction pipe 2; and in this process, since each air duct assembly 6 includes a plurality of parallel air guide pipes 61, it is convenient to directly push the object that is not sucked into the suction pipe 2 in time to approach the suction pipe 2. At the same time, since the air guide pipe 61 is provided with a hook-shaped blade 62 and a strip-shaped blade 63, during the rotation of the air guide pipe 61, it is convenient to directly cut longer objects, thereby reducing or avoiding the blockage of the dust suction port.

[0061] If a long object is trapped on the air duct assembly 6 during the rotation of the air duct 61, the object can be cut through the interaction between the strip blade 1 63 and the strip blade 2 71 when the air duct 61 moves between two adjacent support rods 7; the cut object can be directly sucked into the suction tube 2 under the rotation disturbance of the air duct 61, or the cut object can be pushed to be discharged from the end of the arc plate 13 away from the top plate 12 under the action of the air duct assembly 6 (i.e., the same row of air ducts 61), thereby ensuring that the cut object is sucked into the suction tube 2.

[0062] In addition, by controlling the air flow rate ejected from each air hole 611 per unit time to be much smaller than the inhaled flow rate of the straw 2, when the air guide pipe 61 moves from a horizontal state close to the axis of the straw 2 to a state directly below the axis of the air guide tube 5, the air guide pipe 61 drives the air holes 611 to rotate. Under the rotation of the air guide pipe 61 and the guiding action of the arc plate 13, it is easy to guide the air flow ejected from the air holes 611 to flow upward along the arc plate 13 away from the end of the top plate 12, thereby also generating a driving force for the inhaled object, which helps to improve the overall adsorption capacity.

[0063] Embodiment 2

[0064] See also Figure 2 , Figure 5 as well as Figure 8This embodiment is based on the first embodiment. The driving component 4 specifically adopts a driving motor 41. The driving motor 41 is installed on the baffle 11 adjacent to the connecting column 53. The output shaft of the driving motor 41 is fixedly connected to the connecting column 53, and the output shaft of the driving motor 41 is coaxial with the connecting column 53; that is, the connecting column 53 is driven to rotate by the driving motor 41, thereby driving the entire air guide tube 5 to rotate; a protective cover 42 is provided on the outside of the driving motor 41, and the protective cover 42 is also installed on the baffle 11 adjacent to the connecting column 53.

[0065] Embodiment 3

[0066] See also Figure 4 and Fig. 9 This embodiment is based on the second embodiment, and a first connecting bracket 8 is fixedly connected to the top plate 12, and a long hole 81 is provided on the first connecting bracket 8; at the same time, a second connecting bracket 9 is provided on the baffle 11 provided with a fixing sleeve 15, and a mounting hole 91 is provided on the second connecting bracket 9. The first connecting bracket 8 and the second connecting bracket 9 facilitate the installation and fixation of the entire suction nozzle assembly.

[0067] In addition, a roller mounting frame 131 is provided on the two arc-shaped plates 13, and the roller mounting frame 131 is used to install the roller, and the second connecting bracket 9 is also used to install the roller; that is, through the second connecting bracket 9 and the roller mounting frame 131, it is convenient to install the roller on the entire suction nozzle assembly, and the roller is used to contact the ground when the sanitation vehicle is working.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nozzle assembly for a sanitation vehicle, characterized in that: include: A dust suction hood (1), wherein the dust suction hood (1) is provided with a dust suction port (14); A suction pipe (2), the suction pipe (2) being connected to the dust suction hood (1), the suction pipe (2) corresponding to the position of the dust suction port (14); An air guide tube (5), wherein the air guide tube (5) has two parts, the two air guide tubes (5) are symmetrically arranged on both sides of the axis of the suction pipe (2), and each of the air guide tubes (5) is rotatably arranged on the dust cover (1); A rotary joint (3), wherein the rotary joint (3) has two members, and the two rotary joints (3) are both arranged on the dust hood (1); the rotating end of the rotary joint (3) is connected to the air guide tube (5), the end of the rotary joint (3) away from the air guide tube (5) is connected to an external air source, and the two rotary joints (3) are respectively coaxial with the two air guide tubes (5); A driving assembly (4), wherein the driving assembly (4) comprises two driving assemblies (4), the two driving assemblies (4) respectively driving the two air guide cylinders (5) to rotate, and the two driving assemblies (4) are both arranged on the dust collection hood (1); An air duct assembly (6), wherein a plurality of the air duct assemblies (6) are arranged on the air guide cylinder (5), and the plurality of the air duct assemblies (6) are evenly distributed along the circumference of the axis of the air guide cylinder (5); The air duct assembly (6) comprises a plurality of air ducts (61), the plurality of air ducts (61) being evenly spaced along the axis of the air duct cylinder (5), and the axis of each air duct (61) is perpendicular to the axis of the air duct cylinder (5); One end of each air guide tube (61) is connected to the air guide cylinder (5), and one end of each air guide tube (61) away from the air guide cylinder (5) is provided with a plurality of hook-shaped blades (62); Each of the air guide tubes (61) is provided with a plurality of air holes (611), and the plurality of air holes (611) are arranged at intervals along the length direction of the air guide tube (61); The dust hood (1) comprises a baffle (11), a top plate (12) and a curved plate (13); There are two baffles (11), and the two baffles (11) are arranged in parallel; The top plate (12) is arranged between the two baffles (11); a through hole (121) adapted to the straw (2) is provided on the top plate (12); the straw (2) is fixed in the through hole (121); An arc-shaped plate (13) is respectively provided at both ends of the top plate (12), and the arc-shaped plate (13) is provided between the two baffles (11); The two air guide tubes (5) are respectively coaxial with the two arc-shaped plates (13), and the ends of the two arc-shaped plates (13) away from the top plate (12) and the bottom ends of the two baffles (11) surround to form the dust suction port (14).

2. A nozzle assembly for a sanitation vehicle according to claim 1, characterized in that: The dust hood (1) further comprises: The fixed sleeves (15) are two in number, the two rotary joints (3) are respectively arranged on the two fixed sleeves (15), and the two fixed sleeves (15) are arranged on a baffle (11) adjacent to the rotary joints (3).

3. The nozzle assembly for a sanitation vehicle according to claim 1, characterized in that: Also includes: Strip-shaped blades one (63), a plurality of strip-shaped blades one (63) are arranged outside each air guide tube (61), and the air hole (611) on the air guide tube (61) is located between two adjacent strip-shaped blades one (63).

4. The nozzle assembly for a sanitation vehicle according to claim 1, characterized in that: Also includes: A support rod (7), wherein there are a plurality of the support rods (7), and the top ends of the plurality of the support rods (7) are fixed to the dust cover (1); the plurality of the support rods (7) are evenly spaced along the axis of the air guide tube (5), and the plurality of air guide tubes (61) included in the air duct assembly (6) are staggered with the plurality of the support rods (7); Strip-shaped blade 2 (71), each support rod (7) is provided with strip-shaped blade 2 (71) on one side.

5. The nozzle assembly for a sanitation vehicle according to claim 1, characterized in that: The air guide tube (5) comprises: A central tube (51), wherein the central tube (51) is located between the two baffles (11); A connecting cylinder (52), the connecting cylinder (52) being arranged between the central cylinder (51) and the rotating end of the rotating joint (3), and the connecting cylinder (52), the rotating joint (3) and the central cylinder (51) being coaxial; A connecting column (53), wherein the connecting column (53) is coaxially arranged at an end of the central tube (51) away from the connecting tube (52); The connecting tube (52) penetrates a baffle (11) adjacent to the rotary joint (3), the connecting tube (52) is rotatably disposed on the baffle (11) adjacent to the rotary joint (3), and the connecting column (53) is rotatably disposed on another baffle (11).

6. A nozzle assembly for a sanitation vehicle according to claim 5, characterized in that: The driving component (4) comprises: A drive motor (41), the drive motor (41) being arranged on a baffle (11) adjacent to the connecting column (53), and an output shaft of the drive motor (41) being fixedly connected to the connecting column (53); Wherein, the output shaft of the driving motor (41) is coaxial with the connecting column (53).

7. The nozzle assembly for a sanitation vehicle according to claim 1, characterized in that: A first connecting bracket (8) is provided on the top plate (12), and a second connecting bracket (9) is provided on one of the baffles (11).

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