Sanitation vehicle and flexible suction nozzle therefor

Abstract

The application discloses a sanitation operation vehicle and a flexible suction nozzle thereof. The flexible suction nozzle comprises a foldable suction nozzle body, a plurality of closed air chambers are arranged on both sides of the suction nozzle body, and a gas feeding assembly for feeding gas to the air chambers is connected to the air chambers on any side; the suction nozzle body is driven to extend and retract through expansion and contraction of the air chambers on any side. The flexible suction nozzle can be actively deformed, that is, the flexible suction nozzle can be deformed to extend outward, retract inward, and bend in a forward direction and a reverse direction, so as to avoid obstacles such as tree stumps and pile-shaped obstacles during operation, thereby ensuring continuity of operation, leaving no dead angle of operation, and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of engineering vehicle technology, and in particular to a flexible suction nozzle. This invention also relates to a sanitation vehicle equipped with this flexible suction nozzle. Background Technology

[0002] Existing garbage collection vehicles such as road sweepers and vacuum trucks mostly use rigid suction nozzles 01. Because the rigid suction nozzle 01 is a rigid structure, it cannot overcome obstacles in complex operating environments, such as when there are tree stumps or immovable stake-like obstacles in front. Figure 1 As shown, this can lead to inconvenience in operation, and may even damage the nozzle, increasing additional operating costs.

[0003] Therefore, how to prevent the suction nozzle from failing to overcome obstacles is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible suction nozzle that can deform to bypass obstacles during operation, thereby ensuring continuous operation, eliminating blind spots, and improving work efficiency. Another purpose of this invention is to provide a sanitation vehicle that includes the aforementioned flexible suction nozzle.

[0005] To achieve the above objectives, the present invention provides a flexible suction nozzle, comprising a foldable suction nozzle body, wherein multiple sealed air chambers are provided on both sides of the suction nozzle body, and an air delivery component for supplying gas to the air chamber is connected to either side of the air chamber; the suction nozzle body is extended and retracted by the expansion and contraction of the air chamber on either side.

[0006] Optionally, the air supply assembly includes an air inlet pipe and a connecting pipe, the air inlet pipe being connected to the connecting pipe, and the connecting pipe being connected to all the air chambers on either side.

[0007] Optionally, an intake valve is provided at the end of the intake pipe away from the connecting pipe.

[0008] Optionally, an exhaust valve is provided at the end of the connecting pipe away from the intake pipe.

[0009] Optionally, the connecting pipes are distributed in a serpentine structure.

[0010] Optionally, the connecting pipe is located at the top of all the air chambers on either side.

[0011] Optionally, the nozzle body and all the air chambers are integrally formed by injection molding.

[0012] Optionally, it also includes a tube for connecting to a box inside the vehicle body, wherein there are two suction nozzles, and the two suction nozzles are respectively connected to both ends of the tube.

[0013] Optionally, the bottom of any of the suction nozzles is provided with multiple lower inlets for sucking up waste. After the waste enters the suction nozzle through the lower inlets, it enters the box through the tube.

[0014] The present invention also provides a sanitation vehicle, including a vehicle body and a box disposed within the vehicle body, and further including a flexible suction nozzle disposed on the vehicle body and connected to the box, as described in any of the preceding claims.

[0015] Compared with the above background technology, the flexible nozzle provided in the embodiments of the present invention includes a nozzle body that can be folded and deformed. At the same time, multiple sealed air chambers are provided on both sides of the nozzle body. That is, the nozzle body is located in the middle, and the air chambers are distributed on both sides of the nozzle body. Each air chamber is connected to an air delivery component, and each air delivery component is used to deliver gas to the air chamber on one side. The expansion and contraction of the air chamber on one side drives the nozzle body to extend and retract. Specifically, when air enters both chambers on both sides of the nozzle body, the chambers expand under the action of air pressure, and the nozzle body expands and extends along with the chambers to its maximum length. When air exits from both chambers on both sides of the nozzle body, the chambers contract under the action of external atmospheric pressure, and the nozzle body retracts and shortens along with the chambers. When air enters only one chamber of the nozzle body, the chamber on that side expands under the action of gas pressure, and the nozzle body expands and extends along with that chamber. At the same time, the other chamber exhausts air outward under the action of compression, forming a certain negative pressure. Under the action of external atmospheric pressure, the other chamber contracts and deforms. The nozzle body bends and deforms under the action of forces in different directions on both sides. When the directions of air entry and exhaust are reversed, bending deformation in opposite directions can occur. Compared to traditional rigid suction nozzles, the flexible suction nozzle provided in this embodiment of the invention can actively deform, that is, extend outward, retract inward, and bend in the forward and reverse directions, to meet the obstacle avoidance function of tree stumps or pile-shaped obstacles during operation, thereby ensuring the continuity of operation, leaving no dead corners, and improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a rigid suction nozzle mounted on a vehicle body in the prior art;

[0018] Figure 2This is a top view of the flexible suction nozzle provided in an embodiment of the present invention;

[0019] Figure 3 This is a front view of the flexible suction nozzle provided in an embodiment of the present invention;

[0020] Figure 4 for Figure 2 A schematic diagram showing the two air chambers at point A in an expanded state;

[0021] Figure 5 for Figure 2 A schematic diagram showing one side of the air chamber at point A in a contracted state;

[0022] Figure 6 This is a schematic diagram of the flexible suction nozzle in a bent state.

[0023] in:

[0024] 01- Rigid nozzle;

[0025] 1-Tube body, 2-Nose body, 3-Air chamber, 41-First air inlet valve, 42-Second air inlet valve, 51-First air inlet pipe, 52-Second air inlet pipe, 61-First connecting pipe, 62-Second connecting pipe, 7-Exhaust valve. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The core of this invention is to provide a flexible suction nozzle that can deform to bypass obstacles, thereby ensuring continuous operation, eliminating blind spots, and improving work efficiency. Another core aspect of this invention is to provide a sanitation vehicle incorporating the aforementioned flexible suction nozzle.

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] It should be noted that the directional terms such as "left end," "right end," "front side," and "rear side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0030] Please refer to Figures 2 to 6 , Figure 2 This is a top view of the flexible suction nozzle provided in an embodiment of the present invention; Figure 3 This is a front view of the flexible suction nozzle provided in an embodiment of the present invention; Figure 4for Figure 2 A schematic diagram showing the two air chambers at point A in an expanded state; Figure 5 for Figure 2 A schematic diagram showing one side of the air chamber at point A in a contracted state; Figure 6 This is a schematic diagram of the flexible suction nozzle in a bent state.

[0031] The flexible suction nozzle provided in this embodiment of the invention can be used on sanitation vehicles such as road sweepers and vacuum trucks. The flexible suction nozzle includes a tube body 1 and a suction nozzle body 2 disposed on the tube body 1. Preferably, the tube body 1 is disposed in the middle, and two suction nozzle bodies 2 are disposed, with the two suction nozzle bodies 2 respectively connected to the two ends of the tube body 1.

[0032] Furthermore, the nozzle body 2 is foldable and deformable. At the same time, multiple sealed air chambers 3 are provided on both sides of the nozzle body 2. That is, the nozzle body 2 is located in the middle, and the air chambers 3 are distributed on the front and rear sides of the nozzle body 2. Each air chamber 3 is connected to an air delivery component. Each air delivery component is used to deliver gas to the air chamber 3 on one side. The expansion and contraction of the air chamber 3 on one side drives the nozzle body 2 to extend and retract.

[0033] It should be noted that the air chamber 3 on either side is supplied with air independently, and the air supply of the two air chambers 3 does not interfere with each other. They can be supplied with air independently according to the actual obstacle avoidance requirements. In this way, through the flexible suction body 2 structure that can actively deform, and the flexible air chamber that can actively control the deformation through air pressure, the suction body 2 in the middle is deformed, thereby achieving the purpose of obstacle avoidance.

[0034] Specifically, when air enters both air chambers 3 on both sides of the nozzle body 2, the air chambers 3 on both sides expand under the action of air pressure, and the nozzle body 2 can expand and extend along with the air chambers 3 on both sides, reaching its maximum length; when air exits from both air chambers 3 on both sides of the nozzle body 2, the air chambers 3 on both sides contract under the action of external atmospheric pressure, and the nozzle body 2 can retract and shorten along with the air chambers 3 on both sides; when air enters only one air chamber 3 on the nozzle body 2, the air chamber 3 on that side expands under the action of gas pressure, and the nozzle body 2 can expand and extend along with the air chamber 3 on that side. At the same time, the air chamber 3 on the other side exhausts air outward under the action of compression and forms a certain negative pressure. Thus, under the action of external atmospheric pressure, the air chamber 3 on the other side will contract and deform. The nozzle body 2 will bend and deform under the action of forces in different directions on both sides. When the directions of the air chambers 3 for air intake and exhaust are reversed, bending and deformation in opposite directions can be produced.

[0035] For example, when there are pile-shaped obstacles in front of the work area, the length of the suction nozzle can be shortened by bending or retracting it inward, so as to avoid the obstacles in time and not affect the continuous cleaning operation of the vehicle.

[0036] Compared to traditional rigid suction nozzles, the flexible suction nozzle provided in this embodiment of the invention can actively deform, that is, extend outward, retract inward, and bend in the forward and reverse directions, to meet the obstacle avoidance function of tree stumps or pile-shaped obstacles during operation, thereby ensuring the continuity of operation, leaving no dead corners, and improving work efficiency.

[0037] Specifically, in order to deliver the gas, the gas delivery assembly includes an air inlet pipe and a connecting pipe, as well as a gas source for supplying gas. The gas source can be installed in the vehicle body equipped with a flexible suction nozzle. One end of the air inlet pipe is connected to the gas source, and the other end is connected to the connecting pipe. The connecting pipe is connected to all the air chambers 3 on either side. In this way, the gas supplied by the gas source is delivered to the air chamber 3 on one side through the air inlet pipe and the connecting pipe.

[0038] To facilitate control of gas flow, an intake valve is installed at the end of the intake pipe furthest from the connecting pipe. This intake valve controls the entry of gas into the intake pipe. Simultaneously, an exhaust valve 7 is installed at the end of the connecting pipe furthest from the intake pipe. This exhaust valve 7 controls the discharge of gas from the connecting pipe.

[0039] Preferably, the connecting pipes are distributed in a serpentine structure and are fixed to the top of all the air chambers 3 on one side. Specifically, the top of all the air chambers 3 on one side is provided with an air inlet, and the connecting pipes are connected to the air inlets. The gas transported through the connecting pipes can enter the air chambers 3 through the air inlets.

[0040] Each independent air chamber 3 on one side is sealed and can be connected to the air inlet pipe through a connecting pipe, thereby enabling gas exchange with the outside. The exhaust valve 7 is designed to ensure that the pressure in each air chamber 3 is within a certain range under extreme conditions and to prevent the air chamber 3 from bursting.

[0041] Of course, depending on actual needs, the above-mentioned nozzle body 2 and all air chambers 3 are integrally molded by injection molding, for example, using high molecular resin material, and molded by multi-cavity continuous injection molding process using a proprietary mold. The molded nozzle is a foldable deformable structure, wear-resistant and fold-resistant, and each fold line part adopts a strong and easily deformable and bend-resistant design, and each independent air chamber 3 is sealed.

[0042] In addition, the flexible nozzle also includes a tube 1 for connecting to the box inside the vehicle body, and there are two nozzle bodies 2. The two nozzle bodies 2 are connected to the left and right ends of the tube 1 respectively, and the air intake pipe is located outside the tube 1.

[0043] like Figure 2 and Figure 3As shown, the flexible nozzle includes a nozzle body 2 and air chambers 3 distributed on both sides of the nozzle body 2. The air chamber 3 on the first side is connected to a first connecting pipe 61, and the air chamber 3 on the second side is connected to a second connecting pipe 62. The first connecting pipe 61 is connected to a first air inlet pipe 51, and the second connecting pipe 62 is connected to a second air inlet pipe 52. The first air inlet pipe 51 is provided with a first air inlet valve 41, and the second air inlet pipe 52 is provided with a second air inlet valve 42. Both the first connecting pipe 61 and the second connecting pipe 62 are provided with exhaust valves 7.

[0044] When the flexible nozzle needs to extend, both the first intake valve 41 and the second intake valve 42 are fully open, and the exhaust valves 7 at the ends of both connecting pipes are fully closed. This allows gas to enter all the air chambers 3 on the first side through the first intake valve 41, the first intake pipe 51, and the first connecting pipe 61. Simultaneously, gas enters all the air chambers 3 on the second side through the second intake valve 42, the second intake pipe 52, and the second connecting pipe 62. The air chambers 3 on both sides expand under air pressure, and the nozzle body 2 expands and extends along with the air chambers 3, reaching its maximum working length. Of course, the pressure inside the air chambers 3 on both sides can be controlled by the intake valves to ensure that the deformation of each air chamber 3 is consistent. Figure 4 The diagram shown is a schematic of the two air chambers 3 in an expanded state.

[0045] When the flexible nozzle needs to be bent, the first intake valve 41 opens, and gas enters all the air chambers 3 on the first side through the first intake pipe 51 and the first connecting pipe 61. At this time, all the air chambers 3 on the first side expand and extend under the action of gas pressure. Simultaneously, the second intake valve 42 opens and the exhaust valve 7 closes, and the gas in all the air chambers 3 on the second side is discharged through the second connecting pipe 62, the second intake pipe 52, and the second intake valve 42. A negative pressure of a certain pressure is formed in each independent air chamber 3 on the second side, controlled by the second intake valve 42. Under the action of atmospheric pressure, the air chambers 3 on the second side will contract and deform. In this way, the nozzle body 2 will bend and deform under the action of forces in different directions on both sides. When the air chambers 3 on the intake and exhaust sides are exchanged, bending deformation in the opposite direction can occur. Figure 5 The diagram shown is a schematic of one side of the air chamber 3 being in a contracted state.

[0046] When the flexible nozzle needs to shrink and deform, the independent air chambers 3 on both sides discharge gas through the connecting pipes connected to each independent air chamber 3, through the air inlet pipe and the air inlet valve, forming a certain negative pressure. Under the action of atmospheric pressure, the independent air chambers 3 on both sides will shrink, and the nozzle body 2 will shrink and shorten under the action of the negative pressure formed by each independent air chamber 3 on both sides.

[0047] Based on the above, each suction nozzle 2 is also provided with multiple lower inlets at its bottom. The lower inlets are used to suck up garbage. After the garbage enters the suction nozzle 2 through the lower inlet, it enters the box through the tube 1.

[0048] The sanitation vehicle provided by the present invention includes a vehicle body and a box disposed within the vehicle body, and also includes a flexible suction nozzle as described in the above specific embodiments. The flexible suction nozzle is disposed on the vehicle body and connected to the box, and the garbage sucked up by the flexible suction nozzle is stored in the box. Other parts of the sanitation vehicle can refer to the prior art, and will not be elaborated here.

[0049] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0050] The sanitation vehicle and its flexible suction nozzle provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A flexible suction nozzle, characterized in that, It includes a foldable suction nozzle body (2), and multiple sealed air chambers (3) are provided on both sides of the suction nozzle body (2). Each air chamber (3) on one side is connected to an air delivery component that delivers gas to the air chamber (3). The suction nozzle body (2) is driven to extend and retract by the expansion and contraction of the air chamber (3) on one side. When air enters both air chambers (3) on both sides of the nozzle body (2), the air chambers (3) on both sides expand under the action of air pressure, and the nozzle body (2) can expand and extend along with the air chambers (3) on both sides, reaching its maximum length. When the air chambers (3) on both sides of the nozzle body (2) are venting, under the action of external atmospheric pressure, the air chambers (3) on both sides contract, and the nozzle body (2) can retract and shorten along with the air chambers (3) on both sides. When air enters the air chamber (3) on one side of the suction body (2), the air chamber (3) on that side expands under the action of gas pressure, and the suction body (2) can expand and extend along with the air chamber (3) on that side. At the same time, the air chamber (3) on the other side exhausts gas outward under the action of compression and forms a certain negative pressure to shrink and deform. The suction body (2) bends and deforms under the action of forces in different directions on both sides. The air supply assembly includes an air inlet pipe and a connecting pipe, the air inlet pipe being connected to the connecting pipe, and the connecting pipe being connected to all the air chambers (3) on either side; An intake valve is provided at the end of the intake pipe away from the connecting pipe; An exhaust valve (7) is provided at the end of the connecting pipe away from the air inlet pipe. It also includes a tube (1) for connecting to a box inside the vehicle body, and there are two suction nozzles (2), which are respectively connected to the two ends of the tube (1); Each of the suction nozzles (2) has multiple lower inlets at its bottom for sucking up garbage. After the garbage enters the suction nozzle (2) through the lower inlet, it enters the box through the tube (1).

2. The flexible suction nozzle as described in claim 1, characterized in that, The connecting pipes are distributed in a serpentine structure.

3. The flexible suction nozzle as described in claim 2, characterized in that, The connecting pipe is located at the top of all the air chambers (3) on any side.

4. The flexible suction nozzle as described in any one of claims 1-3, characterized in that, The nozzle body (2) and all the air chambers (3) are integrally formed by injection molding.

5. A sanitation vehicle, comprising a vehicle body and a box disposed within the vehicle body, characterized in that, It also includes a flexible suction nozzle, as described in any one of claims 1-4, which is disposed on the vehicle body and connected to the housing.

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