Suction nozzle of suction system, suction system for environmental sanitation equipment and environmental sanitation equipment

Abstract

The utility model discloses a suction nozzle of a suction system, a suction system for environmental sanitation equipment and the environmental sanitation equipment, and relates to the technical field of environmental sanitation equipment. The suction system comprises a suction nozzle and a suction pipe, the suction pipe is connected with the suction nozzle, the suction nozzle is provided with a flow guide ring, a flow guide channel gradually shrinking in the air inlet direction is formed in the inner side of the flow guide ring, and the flow guide channel communicates with the interior of the suction pipe and is configured to guide airflow in an inner cavity of the suction nozzle to flow to the suction pipe. According to the suction nozzle of the suction system, loss, noise and abrasion of the suction system can be reduced through the suction nozzle with the flow guide ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of environmental sanitation equipment, especially to a suction nozzle of a suction system, a suction system for environmental sanitation equipment and environmental sanitation equipment. BACKGROUND

[0002] According to the related technology, in the field of using negative pressure to suck garbage, the suction nozzle plays an important role in sucking garbage; in the working process, when the airflow in the suction nozzle enters the suction pipe from the inner cavity of the suction nozzle, the airflow velocity suddenly changes, resulting in high noise and high energy loss. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in the related art.

[0004] Therefore, the first purpose of the utility model is to provide a suction nozzle of a suction system, which can reduce the loss, noise and wear of the suction system through a flow guide ring.

[0005] The second purpose of the utility model is to provide a suction system for environmental sanitation equipment, which comprises the aforementioned suction nozzle.

[0006] The third purpose of the utility model is to provide an environmental sanitation equipment, which comprises the aforementioned suction system.

[0007] The suction nozzle of the suction system according to the utility model embodiment further comprises a suction pipe connected to the suction nozzle, the suction nozzle has a flow guide ring, the inner side of the flow guide ring is configured to form a flow guide channel tapering along the air inlet direction, the flow guide channel is communicated with the inside of the suction pipe and is configured to guide the airflow in the inner cavity of the suction nozzle to the suction pipe.

[0008] The suction nozzle of the suction system according to the utility model embodiment can reduce the loss, noise and wear of the suction system through the suction nozzle with the flow guide ring.

[0009] In addition, the suction nozzle of the suction system according to the above-mentioned utility model embodiment can further have the following additional technical features:

[0010] The suction nozzle of the suction system according to the utility model embodiment can reduce the loss, noise and wear of the suction system through the suction nozzle with the flow guide ring.

[0011] Optionally, the flow guide ring is configured to protrude towards the inner cavity of the suction nozzle relative to the inner wall of the suction nozzle.

[0012] Optionally, the flow guide ring is arranged on the top wall of the suction nozzle and protrudes towards the inner cavity of the suction nozzle relative to the top wall.

[0013] Optionally, the flow guide ring is arranged inside a top wall of the suction nozzle.

[0014] Optionally, the top wall of the suction nozzle is provided with a convex portion protruding towards the suction nozzle inner cavity and configured as the flow guide ring.

[0015] Optionally, the flow guide ring has a first flow guide surface facing the flow guide channel and a second flow guide surface facing away from the flow guide channel, one end of the first flow guide surface is connected to the air inlet end, and the other end gradually expands in a direction away from the air inlet end, one end of the second flow guide surface is connected to an inner wall surface of the suction nozzle inner cavity near the air inlet end, and the other end is connected to the other end of the first flow guide surface.

[0016] Optionally, the first flow guide surface is configured as a curved surface, and a radius R of the curved surface of the first flow guide surface satisfies 5 < R < 40.

[0017] Optionally, the second flow guide surface is configured as a flat surface, and an included angle F between the second flow guide surface and a predetermined horizontal plane satisfies F < 30°.

[0018] The suction system according to the embodiment of the present application comprises the suction nozzle, the suction pipe, the box body and the suction assembly in the above, the suction nozzle has a flow guide ring, an inner side of the flow guide ring is configured as a flow guide channel tapered in an air inlet direction, an air inlet end of the suction pipe is communicated with an outlet of the flow guide channel, the box body has a garbage collection cavity communicated with an air outlet end of the suction pipe, and the suction assembly is communicated with the garbage collection cavity and used for sucking air flow in the garbage collection cavity.

[0019] The suction system according to the embodiment of the present application can reduce the loss, noise and wear of the suction system through the flow guide ring of the suction nozzle.

[0020] Optionally, the suction pipe comprises a first pipe segment and a second pipe segment, one end of the first pipe segment is configured as the air inlet end and is communicated with the outlet of the flow guide channel, one end of the second pipe segment is connected to the other end of the first pipe segment, the other end of the second pipe segment is configured as the air outlet end and is communicated with the garbage collection cavity, and the second pipe segment is configured as a gradually expanding shape in an air outlet direction.

[0021] Optionally, the suction system further comprises a flow guide cover arranged in the garbage collection cavity, and the flow guide cover has a third flow guide surface configured as an arc surface inclined from the air outlet end of the suction pipe to a front of the air outlet end of the suction pipe in the air outlet direction.

[0022] Optionally, the third flow guide surface has opposite first and second ends, a tangent direction of the first end is parallel to an axial direction of the air outlet end, and a tangent direction of the second end has an included angle with the axial direction of the air outlet end.

[0023] Optionally, the box has a first side and a second side opposite in a predetermined horizontal direction, the first side is provided with an air outlet, the air deflector is arranged at an upper portion in the box and is closer to the first side than to the second side, and the suction assembly is communicated with the air outlet.

[0024] Optionally, the box has a first side and a second side opposite in a predetermined horizontal direction, the first side is provided with an air outlet, the air outlet end of the suction pipe is arranged in the garbage collection cavity and is closer to the first side than to the second side, and the suction assembly is communicated with the air outlet.

[0025] Optionally, the suction system further comprises a silencer connected with the suction assembly, and the silencer is used for absorbing noise generated by airflow.

[0026] According to the sanitation equipment provided by the embodiment of the present application, the sanitation equipment comprises a device main body and the suction system described above, and the suction system is arranged in the device main body.

[0027] According to the sanitation equipment provided by the embodiment of the present application, by applying the suction system described above, the energy consumption and noise of the sanitation equipment can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the suction system in some embodiments of the present application.

[0029] Figure 2 is Figure 1 a partial enlarged view of the embodiment.

[0030] Figure 3 is Figure 1 a partial enlarged view of the embodiment (showing the curved surface radius R of the first air deflector surface, and the angle F between the second air deflector surface and the predetermined horizontal plane).

[0031] REFERENCE SIGNS:

[0032] suction system 100, suction nozzle 10, air deflector ring 20, air deflector channel 21, first air deflector surface 22, second air deflector surface 23, suction pipe 30, first pipe section 31, second pipe section 32, box 40, garbage collection cavity 41, first side 42, second side 43, suction assembly 50, air deflector 60, third air deflector surface 61, first end 611, second end 612, air inlet direction A→B, air outlet direction C→D, predetermined horizontal plane E-E. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein the same or similar components have the same or similar designations throughout the several figures. The embodiments described below are exemplary in nature, and are intended to be illustrative of the present application rather than to limit the present application.

[0034] The utility model provides a suction system 100's suction nozzle 10, can reduce the loss, noise and wear and tear of suction system 100 through flow guide ring 20. Still propose a suction system 100 for environmental sanitation equipment and a kind of environmental sanitation equipment.

[0035] As Figure 1 And Figure 2 As shown in the utility model embodiment, the suction nozzle 10 of the suction system 100 further includes a suction pipe 30 connected to the suction nozzle 10, the suction nozzle 10 has a flow guide ring 20, the inner side of the flow guide ring 20 is configured with a flow guide channel 21 tapering along an air inlet direction, the flow guide channel 21 is communicated with the inside of the suction pipe 30, and the flow guide channel 21 is configured to guide the airflow in the inner cavity of the suction nozzle 10 to the suction pipe 30. In this way, the energy consumption and noise of the suction system 100 can be reduced, and the wear and tear of the suction system can be reduced.

[0036] Specifically, the suction nozzle 10 can be applied to the suction system 100. When the suction system 100 is working, the suction nozzle 10 can suck the garbage on the working surface, the flow guide channel 21 guides the airflow in the inner cavity of the suction nozzle 10 to the suction pipe 30, and the airflow and the garbage carried by the airflow are transported to a predetermined container by the suction pipe 30, thereby completing the cleaning work of the suction system 100. The flow guide channel 21 can play a role in smoothly transitioning the airflow between the inner cavity of the suction nozzle 10 and the suction pipe 30, thereby reducing the loss, noise, and wear and tear of the suction system 100. In addition, the air inlet direction can be understood as the direction of the airflow from the inner cavity of the suction nozzle 10 to the suction pipe 30.

[0037] More specifically, as Figure 1 And Figure 2 As shown in the utility model embodiment, the suction system 100 includes a suction nozzle 10, a suction pipe 30, a box body 40 (i.e., the aforementioned predetermined container), and a suction assembly 50.

[0038] The suction nozzle 10 has a flow guide ring 20, the inner side of the flow guide ring 20 is configured with a flow guide channel 21 tapering along an air inlet direction, the air inlet end of the suction pipe 30 is communicated with the outlet of the flow guide channel 21, the box body 40 has a garbage collection cavity 41 communicated with the air outlet end of the suction pipe 30, and the suction assembly 50 is communicated with the garbage collection cavity 41 and used for sucking the airflow in the garbage collection cavity 41. In this way, the energy consumption and noise of the suction system 100 can be reduced, and the wear and tear of the suction system 100 can be reduced.

[0039] Specifically, the suction system 100 can be applied to a sanitation device, and the sanitation device can clean garbage on a working surface through the suction system 100; during work, the suction assembly 50 can suck air flow in the garbage collection cavity 41 to generate negative pressure in the garbage collection cavity 41, and the air flow in the inner cavity of the suction nozzle 10 can enter the garbage collection cavity 41 along the suction pipe 30, in this process, the inner side of the flow guide ring 20 can form the flow guide channel 21 which is tapered along the air outlet direction of the inner cavity of the suction nozzle 10, and guide the air flow in the inner cavity of the suction nozzle 10 to the suction pipe 30, forming a transition between the inner cavity of the suction nozzle 10 and the suction pipe 30, thereby reducing the loss, noise and wear of the suction system 100.

[0040] It should be noted that the air inlet direction can be understood as the direction of the air flow from the inner cavity of the suction nozzle 10 to the suction pipe 30. In addition, the suction nozzle 10 and the flow guide ring 20 can be an integral structure to improve the structural strength of the suction system 100, for example, by stamping process and casting process; or the suction nozzle 10 and the flow guide ring 20 can be a split structure to reduce the processing complexity. In addition, the suction assembly 50 can be a fan assembly.

[0041] Therefore, according to the suction system 100 of the embodiment of the present application, by the suction nozzle 10 with the flow guide ring 20, the loss, noise and wear of the suction system 100 can be reduced.

[0042] As shown in Figure 1 and Figure 2 In some embodiments of the present application, the flow guide ring 20 is configured to protrude towards the inner cavity of the suction nozzle 10 relative to the inner wall of the suction nozzle 10. In this way, the part of the flow guide channel 21 in the inner cavity of the suction nozzle 10 can be increased, thereby improving the flow guiding effect of the flow guide ring 20 to further reduce the energy consumption, noise and wear of the suction system 100.

[0043] In some examples, the suction system 100 is used to clean garbage on the road surface, therefore, the bottom of the inner cavity of the suction nozzle 10 is open, the top of the suction nozzle 10 is provided with the flow guide ring 20, and the flow guide channel 21 of the flow guide ring 20 is communicated with the air inlet channel of the suction pipe 30. For the convenience of understanding, the embodiments of the present application are described with the flow guide ring 20 located at the top of the suction nozzle 10, and the setting mode of the flow guide ring 20 in the embodiments of the present application has many kinds, and the following implementation ways are provided.

[0044] Implementation way 1

[0045] In some embodiments of the utility model, the flow guide ring 20 is arranged on the top wall of the suction nozzle 10 and protrudes towards the inner cavity of the suction nozzle 10; it can be understood that the flow guide ring 20 is arranged on the top wall of the suction nozzle 10 and has an inner side facing the air inlet end of the suction pipe 30 and an outer side facing away from the air inlet end of the suction pipe 30, the inner side of the flow guide ring 20 forms a flow guide channel 21, and the flow guide ring 20 protrudes towards the inner cavity of the suction nozzle 10, which can increase the part of the flow guide channel 21 in the inner cavity of the suction nozzle 10, thereby improving the flow guiding effect of the flow guide ring 20, so as to reduce the energy consumption, noise and wear of the suction system 100.

[0046] Embodiment 2

[0047] As shown in Figure 1 and Figure 2 in some embodiments of the utility model, the flow guide ring 20 is arranged on the inner side of the top wall of the suction nozzle 10; it can be understood that the flow guide ring 20 has two opposite ends, one end of the flow guide ring 20 is arranged on the inner side of the top wall of the suction nozzle 10, and the other end of the flow guide ring 20 extends away from the inner side of the top wall of the suction nozzle 10; compared with arranging the flow guide ring 20 on the outer side of the suction nozzle 10, this embodiment can increase the part of the flow guide channel 21 in the inner cavity of the suction nozzle 10, thereby improving the flow guiding effect of the flow guide ring 20, so as to reduce the energy consumption, noise and wear of the suction system 100.

[0048] Embodiment 3

[0049] In some embodiments of the utility model, the top wall of the suction nozzle 10 is provided with a convex part protruding towards the inner cavity of the suction nozzle 10 and configured as the flow guide ring 20; it can be understood that the top wall of the suction nozzle 10 is provided with a convex part protruding towards the inner cavity of the suction nozzle 10, and the convex part forms the flow guide ring 20, which can increase the part of the flow guide ring 20 in the inner cavity of the suction nozzle 10, that is, increase the part of the flow guide channel 21 in the inner cavity of the suction nozzle 10, thereby improving the guiding effect of the airflow in the inner cavity of the suction nozzle 10.

[0050] In some examples, the flow guide ring 20 has an inner side facing the air inlet end of the suction pipe 30 and an outer side facing away from the air inlet end of the suction pipe 30, the outer side of the flow guide ring 20 can be connected with the top wall of the suction nozzle 10, and the inner side can be connected with the air inlet end of the suction pipe 30; wherein the connection mode can be welding, fastener connection, etc.

[0051] As shown in Figure 1 and Figure 2As shown, in some embodiments of the present invention, the guide ring 20 has a first guide surface 22 facing the guide channel 21 and a second guide surface 23 facing away from the guide channel 21, one end of the first guide surface 22 is connected to the air inlet end, and the other end gradually expands in the direction away from the air inlet end, one end of the second guide surface 23 is connected to the inner wall surface of the inner cavity of the suction nozzle 10 close to the air inlet end, and the other end is connected to the other end of the first guide member; in this way, the airflow guiding effect of the guide ring 20 can be improved, thereby further reducing the energy consumption, noise and wear of the suction system 100.

[0052] Specifically, the first guide surface 22 extends in the direction of the axis of the air inlet end around the suction pipe 30 to form a guide channel 21. One end of the first guide surface 22 is connected to the air inlet end, and the other end gradually expands in the direction away from the air inlet end, forming a gradually shrinking guide channel 21 from the other end of the first guide surface 22 to one end of the first guide surface 22, thereby guiding the airflow in the inner cavity of the suction nozzle 10 to flow to the air inlet end of the suction pipe 30, so that the airflow between the inner cavity of the suction nozzle 10 and the suction pipe 30 flows evenly, reducing the resistance generated between the inner cavity of the suction nozzle 10 and the suction pipe 30, thereby reducing the energy consumption and noise of the suction system. The guide ring 20 plays the role of a smooth transition, reducing the wear of the suction system 100 caused by particles entrained in the airflow.

[0053] In addition, one end of the second guide surface 23 is connected to the inner wall surface of the inner cavity of the suction nozzle 10 close to the air inlet end, and the other end is connected to the other end of the first guide member. The airflow in the inner cavity of the suction nozzle 10 can be guided to the first guide surface 22 through the second guide surface 23, and the airflow is guided by the first guide surface 22 to flow to the air inlet end of the suction pipe 30, so that the airflow in the inner cavity of the suction nozzle 10 flows in an orderly manner to reduce the resistance of the suction system 100.

[0054] Furthermore, if Figure 3 As shown, in some embodiments of the present invention, the first guide surface 22 is configured as a curved surface, so that the airflow flows smoothly between the inner cavity of the suction nozzle 10 and the suction pipe 30, thereby reducing the loss, noise, and wear of the suction system 100. The curvature radius R of the first guide surface 22 satisfies: 5<R<40. It can be understood that if the curvature radius R of the first guide surface 22 is less than or equal to 5, the shape of the first guide surface 22 is approximately a right angle, resulting in a sudden change in the flow area of ​​the airflow when the airflow passes through the guide channel 21 formed by the first guide surface 22, which cannot effectively reduce the loss, noise, and wear of the suction system 100. If the curvature radius R of the first guide surface 22 is greater than or equal to 40, the shape of the first guide surface 22 is approximately a flat surface, which cannot effectively form a transition between the inner cavity of the suction nozzle 10 and the suction pipe 30. The curvature radius R of the first guide surface 22 can be 5.5, 6, 10, 25, 30, 35, 38, etc.

[0055] like Figure 3As shown, in other embodiments of the present invention, the second guide surface 23 is set to be planar to form a transition surface between the inner wall surface of the inner cavity of the suction nozzle 10 and the first guide surface 22, so that the airflow can flow smoothly along the inner wall surface of the inner cavity of the suction nozzle 10 toward the first guide surface 22, so as to reduce the loss, noise and wear of the suction system 100; wherein, the angle F between the second guide surface 23 and the predetermined horizontal plane satisfies: F<30°; it can be understood that the suction nozzle 10 has two opposite sides, one side of the suction nozzle 10 has a guide ring 20, and the other side faces the working surface. The suction nozzle 10 is used to suck garbage on the working surface. In order to make the airflow in the inner cavity of the suction nozzle 10 flow smoothly, the angle F between the second guide surface 23 and the predetermined horizontal plane can be made less than 30° to reduce the loss, noise and wear of the suction system 100. The predetermined horizontal plane can be understood as a plane parallel to the working plane, or as a plane opposite to the guide ring 30; the angle F between the second guide surface 23 and the predetermined horizontal plane can be 10°, 15°, 20°, 25°, etc.

[0056] like Figure 1 As shown, in some embodiments of the present invention, the suction pipe 30 includes a first pipe section 31 and a second pipe section 32, one end of the first pipe section 31 is configured as an air inlet end and is connected to the outlet of the guide channel 21, one end of the second pipe section 32 is connected to the other end of the first pipe section 31, and the other end of the second pipe section 32 is configured as an air outlet end and is connected to the garbage collection chamber 41, and the second pipe section 32 is configured to be gradually expanded along the air outlet direction of the suction pipe 30; in this way, the expansion damage of the airflow can be reduced to reduce the power and noise of the suction component 50.

[0057] Specifically, during operation, the airflow can flow through the inner cavity of the suction nozzle 10, the guide channel 21, the air inlet end, the first pipe section 31, the second pipe section 32, the air outlet end and the garbage collection chamber 41 in sequence; during this process, the second pipe section 32 is constructed to be gradually expanded in the direction from the air inlet end to the air outlet end of the suction pipe 30, so that when the airflow flows from the first pipe section 31 through the second pipe section 32, the flow rate of the airflow will decrease, thereby reducing the expansion loss of the airflow, so as to reduce the power and noise of the suction component 50.

[0058] In addition, in some examples of the utility model, the first pipe section 31 and the second pipe section 32 are arranged along the up-down direction, that is to say, the lower end of the first pipe section 31 is configured as an air inlet end, the upper end of the first pipe section 31 is connected to the lower end of the second pipe section 32, and the upper end of the second pipe section 32 is configured as an air outlet end; in the related art, the suction pipe 30 comprises a first part, a second part and a third part arranged up and down, the first part is connected to the suction nozzle 10, the third part is connected to the box body 40, and the first part is configured as a gradually expanding shape along the air inlet direction of the suction pipe 30 to reduce the energy consumption, noise and abrasion of the suction system 100, but because the first part is configured as a gradually expanding shape, the high-speed flow cross section of the suction pipe is moved upward (that is to say, the air flow cross section of the non-gradually expanding and non-gradually reducing part of the suction pipe 30), thereby reducing the suction effect of the suction pipe 30; and in combination with the foregoing, the utility model example arranges the flow guide ring 20 on the top wall of the inner cavity of the suction nozzle 10, and guides the air flow through the flow guide ring 20, so that the suction effect can be ensured while reducing the energy consumption, noise and abrasion of the suction system 100.

[0059] In addition, in some examples of the utility model, the wall surface of the garbage collection cavity 41 is provided with a mounting opening, and a third pipe section is arranged in the garbage collection cavity 41, one end of the third pipe section is connected to the edge part of the mounting opening, and the other end is located in the garbage collection cavity 41; the first pipe section 31 of the suction pipe 30 can be sleeved in the third pipe section, and a sealing element is arranged between the outer peripheral surface of the first pipe section 31 and the inner peripheral surface of the third pipe section, so as to seal the garbage collection cavity 41 through the sealing element to avoid air flow leakage, and the connection strength between the suction pipe 30 and the box body 40 can be improved through the interference fit between the first pipe section 31 and the sealing element, thereby improving the working stability of the suction system 100.

[0060] As shown in the figure, Figure 1 In some embodiments of the utility model, the suction system 100 further comprises a flow guide cover 60, the flow guide cover 60 is arranged in the garbage collection cavity 41, and the flow guide cover 60 is used for guiding the air flow discharged by the suction pipe 30 to avoid the impact of the air flow on the inner wall surface of the garbage collection cavity 41, thereby avoiding the damage of the box body 40; specifically, the flow guide cover 60 has a third flow guide surface 61, the third flow guide surface 61 is arranged as an inclined arc surface from the air outlet end of the suction pipe 30 to the front of the air outlet end of the suction pipe 30 along the air outlet direction of the suction pipe 30, so that after the air flow of the suction pipe 30 is discharged, the air flow can flow along the air outlet direction of the suction pipe 30 first, and then be guided by the third flow guide surface 61 to flow to the front of the air outlet end of the suction pipe 30, thereby avoiding the direct impact of the air flow on the inner wall surface of the garbage collection cavity 41.

[0061] As shown in the figure, Figure 1As shown in some embodiments of the utility model, the third flow guide surface 61 of the flow guide cover 60 has opposite first end 611 and second end 612, the first end 611 of third flow guide surface 61 is close to the air outlet end of suction pipe 30, the second end 612 of third flow guide surface 61 is away from the air outlet end of suction pipe 30, and the tangent direction of first end 611 is parallel to the axis direction of air outlet end, and the tangent direction of second end 612 has an angle with the axis direction of air outlet end, so that the air flow from the air outlet end of suction pipe 30 can flow smoothly to the first end 611 of third flow guide surface 61, reducing the turbulence of air flow, and then the air flow is guided by third flow guide surface 61 to flow along the arc, so that the air flow forms a circuitous air flow in the garbage collection cavity 41, avoiding the direct impact of air flow on the garbage collection cavity 41.

[0062] As Figure 1 As shown in some embodiments of the utility model, the box 40 has opposite first side 42 and second side 43 along the predetermined horizontal direction, the first side 42 is provided with air outlet 44, the flow guide cover 60 is arranged in the upper part of the box 40 and is closer to the first side 42 than the second side 43, and the suction assembly 50 is communicated with the air outlet 44, so that the garbage settling effect of the suction system 100 can be improved, thereby improving the cleaning efficiency.

[0063] It can be understood that when the environmental sanitation equipment works, the air flow is discharged from the air outlet 44 of the first side 42 of the garbage collection cavity 41, in order to improve the settling effect of the garbage particles in the air flow, the flow guide cover 60 arranged in the box 40 can be arranged closer to the first side 42 than the second side 43, so that the air flow discharged by the suction pipe 30 to the garbage collection cavity 41 can be prevented from being directly discharged through the air outlet 44, and the air flow discharged by the suction pipe 30 can be guided by the flow guide cover 60 to the space away from the air outlet, so as to improve the settling effect of the garbage particles.

[0064] It should be explained that the predetermined horizontal direction can be understood as the left-right direction, the front-rear direction, etc.

[0065] In addition, generally, the suction pipe 30 is arranged in the bottom wall of the box 40, and the air outlet direction of the suction pipe 30 is towards the upper part of the box 40, avoiding the garbage particles from blocking the suction pipe 30, therefore, the flow guide cover 60 can be arranged in the upper part of the box 40, so that the flow guide cover 60 can be opposite to the air outlet end of the suction pipe 30, guiding the air flow discharged by the suction pipe 30 to settle.

[0066] As Figure 1As shown, in some embodiments of the present invention, the box body 40 has a first side surface 42 and a second side surface 43 opposite to each other along a predetermined horizontal direction. The first side surface 42 is provided with an air outlet 44, and the air outlet 44 is used to discharge the gas in the garbage collection chamber 41. The air outlet end of the suction pipe 30 is provided in the garbage collection chamber 41 and is closer to the first side surface 42 than the second side surface 43, so as to form a larger sedimentation space between the suction pipe 30 and the second side surface 43 of the box body 40, thereby improving the sedimentation effect of the garbage particles; the suction assembly 50 is connected to the air outlet 44 and creates a negative pressure in the garbage collection chamber 41. After the suction pipe 30 discharges the air flow, it can flow to the sedimentation space between the suction pipe 30 and the second side surface 43 under the action of the air guide cover 60, so that the particles entrained in the air flow settle in the garbage collection chamber 41, and then the air flow can be discharged from the garbage collection chamber 41 through the exhaust port, realizing the garbage collection function of the sanitation equipment.

[0067] like Figure 1 As shown, in some embodiments of the present invention, the suction system 100 also includes a muffler 70, which is connected to the suction assembly 50, and the muffler 70 is used to absorb the noise generated by the airflow; the muffler 70 can eliminate the noise generated by the airflow, thereby improving the user experience.

[0068] Among them, the silencer 70 includes an exhaust pipe, a silencer net and silencer cotton. One end of the exhaust pipe is connected to the suction component 50, which facilitates the suction component 50 to discharge the airflow in the garbage collection chamber 41 to the external environment. The inner wall surface of the exhaust pipe is provided with a silencer net, and the silencer net has multiple silencer holes, which can absorb the noise generated by the airflow, and silencer cotton is provided between the inner wall surface of the exhaust pipe and the silencer net, and the silencer cotton can further absorb the noise generated by the airflow.

[0069] like Figure 1 As shown, according to the sanitation equipment of an embodiment of the present invention, the sanitation equipment includes an equipment body and the suction system 100 in the above embodiment. The suction system 100 is arranged on the equipment body. By applying the aforementioned suction system 100, the energy consumption and noise of the sanitation equipment can be reduced.

[0070] When the sweeper is working, the suction assembly 50 sucks the air flow in the garbage collecting cavity 41 to create a negative pressure in the garbage collecting cavity 41, so that the air flow can flow through the inner cavity of the suction nozzle 10, the suction pipe 30 and the garbage collecting cavity 41 in turn and finally be discharged to the external environment, and the suction nozzle 10 sucks the garbage on the road surface under the driving of the air flow; wherein the suction nozzle 10 has a flow guide ring 20 arranged on the inner side of the top wall of the suction nozzle 10, the inner side of the flow guide ring 20 has a first flow guide surface 22, one end of the first flow guide surface 22 is connected to the air inlet end of the suction pipe 30, the other end extends away from the air inlet end of the suction pipe 30 and forms a flow guide channel 21 tapered along the air inlet direction of the suction pipe 30 to guide the air flow in the inner cavity of the suction nozzle 10 to flow to the suction cavity, thereby reducing the energy consumption and noise of the sweeper; the outer side of the flow guide ring 20 has a second flow guide surface 23 connected to the inner wall surface of the inner cavity of the suction nozzle 10 close to the air inlet end to guide the air flow in the inner cavity of the suction nozzle 10 to flow to the first flow guide surface 22, thereby further improving the flow guiding effect of the flow guide ring 20.

[0071] In addition, the garbage collecting cavity 41 of the box body 40 is provided with a flow guide cover 60, the flow guide cover 60 has a third flow guide surface 61 arranged in the air outlet direction of the suction pipe 30 from the air outlet end of the suction pipe 30 to the front of the air outlet end of the suction pipe 30 to guide the air flow to generate a detour path and avoid the air flow directly impacting the inner wall of the garbage collecting cavity 41; wherein the third flow guide surface 61 has a first end 611 close to the air outlet end and a second end 612 away from the air outlet end, the tangent direction of the first end 611 of the third flow guide surface 61 is parallel to the axis direction of the air outlet end to guide the air flow discharged from the suction pipe 30 to flow smoothly to the flow guide cover 60 and avoid the air flow being turbulent to reduce the generation of noise, and the tangent direction of the second end 612 has an angle with the axis direction of the air outlet end to change the flow direction of the air flow and avoid the air flow directly impacting the box body 40.

[0072] In addition, the box body 40 has a first side surface 42 and a second side surface 43 along a predetermined horizontal direction, the first side surface 42 is provided with an air outlet 44 in communication with the suction assembly 50, the flow guide cover 60 is arranged at the upper part of the box body 40 to be opposite to the air outlet end of the suction pipe 30 to improve the guiding effect of the air flow, and the flow guide cover 60 is closer to the first side surface 42 than to the second side surface 43 to avoid the air flow discharged from the suction pipe 30 being directly discharged from the air outlet 44 and affecting the garbage particle settling effect, that is, the flow guide cover 60 can guide the air flow discharged from the suction pipe 30 to flow to a position away from the air outlet, thereby improving the settling effect of the garbage particles entrained in the air flow.

[0073] Similarly, the air outlet end of the suction pipe 30 is arranged in the garbage collecting cavity 41 and is closer to the first side surface 42 than to the second side surface 43 to form a larger settling space between the suction pipe 30 and the second side surface 43, thereby improving the settling effect of the garbage particles.

[0074] In some specific examples of the present application, in the related art, the pipe outlet adopts an expanded pipe, and the pipe inlet adopts an arc-shaped expansion; while the inlet flow guide section (i.e., the flow guide ring 20) of the present application is in the inner cavity part of the suction nozzle 10, which plays a flow guiding role while not reducing the flow rate of the pipe section; while the flow guide part of the related art is above the suction nozzle 10, i.e., the first part of the suction pipe 30 in the aforementioned related art, which will inevitably cause the high-speed flow cross section of the pipe to move upward and be higher from the ground, which is not conducive to the suction of heavier particles, especially in the sweeping mode, the weight of the particles is further increased, which is not conducive to dust collection.

[0075] In addition, the arrangement of the suction pipe 30 in the box body 40 is on the left side, the settling space on the right side of the flow guide cover 60 is larger, the air inlet (i.e., the air outlet 44) of the fan (i.e., the suction assembly 50) is arranged in the upper corner area of the entire box body 60, which is a low-speed backflow area, which further increases the settling of garbage and reduces the possibility of garbage being sucked into the fan.

[0076] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0077] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0079] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0080] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "exemplary", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0081] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A suction nozzle (10) of a suction system, the suction system further comprising a suction pipe (30), the suction pipe (30) being connected to the suction nozzle (10), characterized in that: The suction nozzle (10) has a guide ring (20), and a guide channel (21) is constructed on the inner side of the guide ring (20) and is gradually contracted along the air intake direction. The guide channel (21) is connected to the interior of the suction pipe (30) and is configured to guide the airflow in the inner cavity of the suction nozzle (10) to flow toward the suction pipe (30).

2. The suction nozzle (10) of the suction system according to claim 1, characterized in that The guide ring (20) is configured to protrude toward the inner cavity of the suction nozzle (10) relative to the inner wall surface of the suction nozzle (10).

3. The suction nozzle (10) of the suction system according to claim 2, characterized in that The guide ring (20) is provided on the top wall of the suction nozzle (10) and protrudes toward the inner cavity of the suction nozzle (10) relative to the top wall; Alternatively, the guide ring (20) is provided on the inner side of the top wall of the suction nozzle (10); Alternatively, the top wall of the suction nozzle (10) is provided with a convex portion protruding toward the inner cavity of the suction nozzle (10) and configured to form the guide ring (20).

4. The suction nozzle (10) of the suction system according to any one of claims 1 to 3, characterized in that The guide ring (20) has a first guide surface (22) facing the guide channel (21) and a second guide surface (23) facing away from the guide channel (21); one end of the first guide surface (22) is connected to the suction pipe (30), and the other end gradually expands in a direction away from the suction pipe (30); one end of the second guide surface (23) is connected to the inner wall surface of the inner cavity of the suction nozzle (10) close to the suction pipe (30), and the other end is connected to the other end of the first guide surface.

5. The suction nozzle of the suction system according to claim 4, characterized in that The first guide surface (22) is configured as a curved surface, and a radius R of the curved surface of the first guide surface (22) satisfies: 5<R<40; And / or, the second guide surface (23) is set to be flat, and the angle F between the second guide surface (23) and a predetermined horizontal plane satisfies: F<30°.

6. A suction system for sanitation equipment, characterized in that: include: The suction nozzle (10) according to any one of claims 1 to 5; A suction pipe (30), wherein the air inlet end of the suction pipe (30) is connected to the outlet of the guide channel (21); A box body (40), wherein the box body (40) has a garbage collection chamber (41) connected to the air outlet end of the suction pipe (30); A suction component (50), the suction component (50) is connected to the garbage collection chamber (41) and is used to suck the air flow in the garbage collection chamber (41).

7. The suction system for sanitation equipment according to claim 6, characterized in that: The suction pipe (30) comprises a first pipe section (31) and a second pipe section (32), one end of the first pipe section (31) being configured as the air inlet end and being connected to the outlet of the guide channel (21), one end of the second pipe section (32) being connected to the other end of the first pipe section (31), the other end of the second pipe section (32) being configured as the air outlet end and being connected to the garbage collection chamber (41), and the second pipe section (32) being configured to be gradually expanded along the air outlet direction.

8. The suction system for sanitation equipment according to claim 6, characterized in that: The suction system further comprises a flow guide cover (60), wherein the flow guide cover (60) is arranged in the garbage collection chamber (41), and the flow guide cover (60) has a third flow guide surface (61), and the third flow guide surface (61) is arranged as an arc surface inclined along the gas outlet direction from the gas outlet end of the suction pipe (30) to the front of the gas outlet end of the suction pipe (30).

9. The suction system for sanitation equipment according to claim 8, characterized in that: The third guide surface (61) has a first end (611) and a second end (612) opposite to each other, the tangent direction of the first end (611) is parallel to the axial direction of the gas outlet end, and the tangent direction of the second end (612) forms an angle with the axial direction of the gas outlet end; And / or, the box body (40) has a first side surface (42) and a second side surface (43) opposite to each other along a predetermined horizontal direction, the first side surface (42) is provided with an air outlet (44), the air guide cover (60) is provided at an upper portion of the box body (40) and is closer to the first side surface (42) than the second side surface (43), and the suction assembly (50) is connected to the air outlet (44).

10. The suction system for sanitation equipment according to claim 6, characterized in that: The box body (40) has a first side surface (42) and a second side surface (43) opposite to each other along a predetermined horizontal direction, the first side surface (42) is provided with an air outlet (44), the air outlet end of the suction pipe (30) is provided in the garbage collection chamber (41) and is closer to the first side surface (42) than the second side surface (43), and the suction assembly (50) is connected to the air outlet (44); And / or, the suction system further comprises a muffler (70), the muffler (70) being connected to the suction assembly (50), and the muffler (70) being used to absorb noise generated by airflow.

11. A sanitation equipment, characterized in that: include: Equipment body; The suction system according to any one of claims 6 to 10, wherein the suction system is arranged on the device body.

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