CN219825563U - Dirt sucking assembly and dirt sucking system - Google Patents
Dirt sucking assembly and dirt sucking system Download PDFInfo
- Publication number
- CN219825563U CN219825563U CN202320703937.XU CN202320703937U CN219825563U CN 219825563 U CN219825563 U CN 219825563U CN 202320703937 U CN202320703937 U CN 202320703937U CN 219825563 U CN219825563 U CN 219825563U
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- dirt
- cylinder
- assembly
- outer cylinder
- inner cylinder
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- 239000010865 sewage Substances 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 239000010802 sludge Substances 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 23
- 239000000306 component Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Cleaning In General (AREA)
Abstract
The utility model discloses a dirt absorbing component and a dirt absorbing system, comprising a connecting part, a dirt absorbing hose, a clamp and a cylinder assembly; the cylinder assembly is connected with the bottom end of the dirt suction hose; the top end of the dirt suction hose is connected to the existing dirt suction pipe for cleaning the vehicle through a connecting part and a clamp; the cylinder assembly comprises an outer cylinder, an inner cylinder sealing plate, an outer cylinder sealing plate and a sewage suction pipe joint; the bottom surfaces of the outer cylinder, the inner cylinder sealing plate and the outer cylinder sealing plate and the sewage suction pipe joint form a cavity structure with a gap between the inner cylinder and the outer cylinder; according to the utility model, positive pressure air flow is pumped into a cavity in the middle of the inner cylinder body and the outer cylinder body of the dirt sucking assembly through the second vacuum pump, the positive pressure air flow enters the dirt sucking channel through the small air holes in the inner cylinder body obliquely upwards, a venturi principle is generated in the dirt sucking system, and negative pressure in the dirt sucking system is increased; under the simultaneous actions of the lifting action of the airflow in the positive direction and the negative pressure increase in the system, the suction depth of the dirt sucking system is greatly improved, the operation capacity of the cleaning vehicle is increased, and the dirt sucking efficiency is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of sanitation vehicles, and particularly relates to a sewage suction assembly and a high-suction-range sewage suction system comprising the sewage suction assembly.
Background
The cleaning and sewage sucking truck is a special vehicle for dredging urban sewer and is suitable for sucking sewage, cleaning, transporting and cleaning. The cleaning and soil pick-up truck is mainly used for sucking sludge and sundries in a sewer pipe and transporting the sludge and the sundries to a designated place. However, at present, the conventional cleaning and sewage sucking truck sucks sewage after vacuumizing a sludge tank by using a vacuum pump, the suction depth of a sewer wellhead is limited by the vacuum suction mode, the maximum suction distance cannot exceed 10 meters, and if the sewage depth is too deep, the negative pressure is difficult to suck the sludge at the lower part of the sewage. In actual operation, the depth of a plurality of wellheads is far more than 10 meters, the depth of sewage is large, and sludge is deposited at the bottom, so that great trouble is caused to dredging work of a sewer network.
Therefore, a device which has a simple structure and is convenient to operate and can suck dirt from a deep well mouth of more than 10 meters needs to be developed.
Disclosure of Invention
The utility model aims to provide a sewage suction assembly capable of meeting the deep water bottom sludge suction operation and a high-suction-range sewage suction system comprising the sewage suction assembly.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a dirt absorbing component comprises a connecting part, a dirt absorbing hose, a clamp and a cylinder assembly; the cylinder assembly is connected to the bottom end of the dirt suction hose and comprises an interface for connecting an air pipeline; the clamp sets up in the one end of dirt absorbing hose for connect the locking dirt absorbing hose with dirt absorbing pipe of dirt absorbing system.
Further, the cylinder assembly comprises an outer cylinder, an inner cylinder sealing plate, an outer cylinder sealing plate and a sewage suction pipe joint; the bottom surfaces of the outer cylinder, the inner cylinder sealing plate, the outer cylinder sealing plate and the sewage suction pipe joint form a cavity structure with a gap between the inner cylinder and the outer cylinder.
Further, the outer cylinder and the inner cylinder are hollow cylindrical bodies, the radial width of the inner cylinder is smaller than that of the outer cylinder, and a cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder; the bottom surface of the inner cylinder is provided with an opening for sewage or sludge to enter the inner cylinder from the opening of the bottom surface of the inner cylinder.
Further, the inner cylinder is provided with a through hole.
Further, the bottom surface diameter of inner tube is less than the bottom surface diameter of urceolus, and inside and outside barrel shrouding is connected between inner tube and urceolus, and inside and outside barrel shrouding is located the inner tube outside and is inboard at the urceolus, and inside and outside barrel shrouding, inner tube, urceolus three bottom surface are leveled, and the gap between the bottom surface of inner tube and the bottom surface of urceolus is sealed by inside and outside barrel shrouding.
Further, the sewage suction pipe joint is a lower joint of the quick joint, the quick joint comprises a lower joint and an upper joint, and the lower joint and the upper joint are tightly hooped through a clamp; the lower joint and the upper joint are hooped to form a sewage or sludge flow channel with hollow inside; the dirt sucking pipe joint is connected to the top ends of the outer cylinder and the inner cylinder, and the upper joint of the quick joint is connected to the bottom end of the dirt sucking hose to realize the connection of the cylinder assembly and the dirt sucking hose.
Further, the top surface diameter of the inner cylinder is smaller than the top surface diameter of the outer cylinder, a gap exists between the top surface of the inner cylinder and the top surface of the outer cylinder, and when the sewage suction pipe joint is welded at the top ends of the outer cylinder and the inner cylinder, the bottom surface wall thickness part of the sewage suction pipe joint seals the gap exists between the top surface of the inner cylinder and the top surface of the outer cylinder.
Further, a through hole is formed in the outer cylinder, and one end of the elbow is communicated with a cavity between the inner cylinder and the outer cylinder through the through hole in the outer cylinder; the other end of the elbow is connected with the air pipe joint.
Further, the air pipe joint is connected with a second vacuum pump through a pipeline.
Further, the connecting part is connected to the top end of the dirt absorbing hose, the connecting part is a quick connector, the quick connector comprises a lower connector and an upper connector, the lower connector included in the connecting part is connected to the top end of the dirt absorbing hose, and the upper connector included in the connecting part is connected to the bottom end of the existing dirt absorbing pipe for cleaning the vehicle; the clamp is used for hooping the lower joint and the upper joint of the connecting part so as to connect the dirt sucking hose with the bottom end of the existing dirt sucking pipe.
The dirt absorbing system comprises the dirt absorbing assembly, the dirt absorbing assembly is connected with a dirt absorbing pipe of the dirt absorbing system through a quick connector, one end of the quick connector is connected with the dirt absorbing pipe, the other end of the quick connector is connected with a dirt absorbing hose and is locked through a clamp on the dirt absorbing hose, and an interface of the cylinder assembly, which is connected with an air pipeline, is communicated with an air outlet of a second vacuum pump.
The beneficial effect of adopting this technical scheme is:
the utility model has the advantages that the structure of the dirt absorbing component is simple, the dirt absorbing component is integrated on an original vehicle, the dirt absorbing component is connected with a dirt absorbing pipe of an original dirt absorbing system, an air pipe joint of the dirt absorbing component is connected with a second vacuum pump on the vehicle through a hose, when the ultra-deep suction operation is carried out, the second vacuum pump on the vehicle is started, positive pressure air flow is pumped into a cavity in the middle of an inner cylinder body and an outer cylinder body of the dirt absorbing component through the air pipe joint of the dirt absorbing component, the positive pressure air flow enters a dirt absorbing channel through a small air hole obliquely upwards in the inner cylinder body, positive pressure air flow produces positive lifting action on sludge, and meanwhile, as the inclined hole is much smaller than the cross section area of the positive pressure air inlet, venturi principle is produced in the dirt absorbing system, negative pressure in the dirt absorbing system is increased, under the two conditions of positive lifting action and negative pressure in the system, the dirt absorbing system can lift the suction depth from less than 10 m to 40 m to 70m in the market, the working capacity is greatly increased, and the dirt absorbing efficiency is greatly improved.
Drawings
Fig. 1 is a schematic view of a soil pick-up assembly according to the present utility model.
FIG. 2 is a schematic view of a barrel assembly according to the present utility model.
FIG. 3 is a partial view of the barrel assembly of the present utility model.
FIG. 4 is a schematic view of the inner cylinder bottom surface, outer cylinder bottom surface and inner and outer cylinder seal plates of the present utility model.
FIG. 5 is a schematic view of a quick connector according to the present utility model.
FIG. 6 is a schematic structural view of the inner cylinder of the present utility model.
Fig. 7 is a schematic view of a soil pick-up assembly according to the present utility model.
Fig. 8 is a schematic diagram of the overall operation of the soil pick-up system of the present utility model.
Fig. 9 is a schematic diagram of the operation of the soil pick-up system of the present utility model.
Wherein: 1-a connection; 2-a dirt suction hose; 3-clamping; 4-a cylinder assembly; 41-a sewage suction pipe joint; 42-an outer cylinder; 43-an inner cylinder; 431-a through hole; 432-soil pick-up port; 44-inner and outer cylinder sealing plates; 45-elbow; 46-tracheal tube connection; 5-positive pressure air; 6-sewage; 7-sludge; a-a dirt suction pipe; b-a sludge tank; c-a first vacuum pump; d-a second vacuum pump.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1, the dirt absorbing assembly of the utility model comprises a connecting part 1, a dirt absorbing hose 2, a clamp 3 and a cylinder assembly 4.
As shown in fig. 2 and 3, the cylinder assembly 4 is a core component of the dirt suction assembly, and the cylinder assembly 4 includes an outer cylinder 42, an inner cylinder 43, an inner and outer cylinder sealing plate 44 and a dirt suction pipe joint 41; the bottom surfaces of the outer cylinder 42, the inner cylinder 43, the inner and outer cylinder sealing plates 44 and the sewage suction pipe joint 41 form a cavity structure with a gap between the inner and outer cylinders; the outer tube 42, the inner tube 43, the inner and outer tube sealing plates 44, and the suction pipe joint 41 are welded together by welding.
The outer cylinder 42 and the inner cylinder 43 are hollow cylindrical bodies, preferably cylindrical bodies, the radial width of the inner cylinder 43 is smaller than that of the outer cylinder 42, and a cavity is formed between the inner wall of the outer cylinder 42 and the outer wall of the inner cylinder 43; the bottom surface of the inner cylinder 43 is open so that sewage 6 or sludge 7 enters the inner cylinder 43 from the bottom surface opening of the inner cylinder 43.
The diameter of the bottom surface of the inner cylinder 43 is smaller than that of the outer cylinder 42, an inner cylinder sealing plate 44 and an outer cylinder sealing plate 44 are connected between the inner cylinder 43 and the outer cylinder 42, the inner cylinder sealing plate 44 and the outer cylinder sealing plate 44 are positioned outside the inner cylinder 43 and inside the outer cylinder 42, the bottom surfaces of the inner cylinder sealing plate 44, the inner cylinder 43 and the outer cylinder 42 are leveled, and as shown in fig. 3 and 4, a gap between the bottom surface of the inner cylinder 43 and the bottom surface of the outer cylinder 42 is sealed by the inner cylinder sealing plate 44 and the outer cylinder sealing plate 44; the sewage suction pipe joint 41 is a lower joint of a quick joint, as shown in fig. 5, the quick joint comprises a lower joint and an upper joint, the lower joint and the upper joint are hooped by a clamp, and a sewage or sludge flow channel with a hollow inside can be formed after the lower joint and the upper joint are hooped; the dirt sucking pipe joint 41 is welded at the top ends of the outer cylinder 42 and the inner cylinder 43 as a lower joint of the quick joint, and the upper joint of the quick joint is connected with the bottom end of the dirt sucking hose 2 to realize the connection of the cylinder assembly 4 and the dirt sucking hose 2.
The top surface diameter of the inner cylinder 43 is smaller than the top surface diameter of the outer cylinder 42, a gap exists between the top surface of the inner cylinder 43 and the top surface of the outer cylinder 42, a certain wall thickness exists on the lower joint of the quick joint connecting the cylinder assembly 4 and the dirt sucking hose 2, namely the dirt sucking pipe joint 41, and when the dirt sucking pipe joint 41 is welded on the top ends of the outer cylinder 42 and the inner cylinder 43, the bottom surface wall thickness part of the dirt sucking pipe joint 41 just seals the gap between the top surface of the inner cylinder 43 and the top surface of the outer cylinder 42.
The inner diameter of the inner cylinder 43 is the same as the inner diameter of the quick connector, and sludge or sewage flows through the inner cylinder 43 and then enters the sewage suction hose 2 through the quick connector, and the inner cylinder 43, the quick connector and the sewage suction hose 2 are communicated to form a sewage suction channel; the width of the channel of the inner cylinder 43 for the sludge or sewage to pass through is equal to the width of the channel of the quick connector for the sludge or sewage to pass through.
As shown in fig. 6, the inner tube 43 is provided with a through hole 431 inclined upward.
The cylinder assembly 4 comprises an interface for connecting an air pipeline, and the interface for connecting the air pipeline is an elbow 45; the outer cylinder 42 is provided with a through hole, one end of the elbow 45 is communicated with a cavity between the inner cylinder 43 and the outer cylinder 42 through the through hole on the outer cylinder 42, and the elbow 45 is connected with the outer cylinder 42 in a welding mode; the other end of the elbow 45 is connected with the air pipe joint 46 in a welding mode; the air pipe joint 46 is communicated with the cavity between the inner cylinder 43 and the outer cylinder 42 through an elbow 45; the exhaust port of the second vacuum pump d is connected with the air pipe joint 46 through a pipeline, and positive pressure air at the exhaust port of the second vacuum pump d enters a cavity between the inner cylinder 43 and the outer cylinder 42 of the cylinder assembly 4.
The connecting part 1 is connected to the top end of the dirt absorbing hose 2, the connecting part 1 is a common quick connector, as shown in fig. 5, the quick connector comprises a lower connector and an upper connector, the lower connector of the connecting part 1 is connected to the top end of the dirt absorbing hose 2, the upper connector of the connecting part 1 is connected to the bottom end of a dirt absorbing pipe a of an existing dirt absorbing system for cleaning a vehicle, the lower connector and the upper connector of the connecting part 1 are hooped by the clamp 3, and then the dirt absorbing assembly is communicated with the bottom end of the dirt absorbing pipe a of the existing dirt absorbing system for cleaning the vehicle to perform dirt absorbing operation.
In the prior art, the existing sewage suction pipe a extends into the sewage wellhead to perform sewage suction operation; in this embodiment, as shown in fig. 7 and 8, after the conventional dirt sucking pipe a is connected to the dirt sucking assembly of the present utility model, the dirt sucking opening 432 is arranged at the lower part of the dirt sucking assembly of the present utility model, and the bottom opening of the inner cylinder 43 is used as the dirt sucking opening 432; the cylinder assembly 4 extends into the sewage wellhead to perform sewage sucking operation, and sewage or sludge enters the sewage sucking hose 2 after passing through the bottom end opening of the inner cylinder 43 and the sewage sucking pipe joint 41, and then enters the existing sewage sucking pipe a communicated with the sewage sucking hose 2.
As shown in fig. 8 and 9, when the vehicle performs suction operation, the first vacuum pump c vacuumizes the sludge tank b, under the action of negative pressure in the tank body of the sludge tank b, sludge enters the sludge tank through the sewage suction pipe a, when the depth of a sewage wellhead is greater than 10 meters, the second vacuum pump d is started simultaneously when the first vacuum pump c is started, the air pipe joint 46 is connected with the second vacuum pump d through a pipeline, the second vacuum pump d pumps positive pressure air 5 into a cavity between the outer wall of the inner cylinder 43 and the inner wall of the outer cylinder 42 through the air pipe joint 46 and the elbow 45, and the positive pressure air flow enters a sewage suction channel through the through hole 431 obliquely upwards of the inner cylinder 43, wherein the sewage suction channel comprises a channel formed by the inner cylinder 43, the quick joint and the sewage suction hose 2; the positive pressure gas has a positive lifting effect on the sludge 7 deposited in the dirt sucking channel, and meanwhile, as the cross section area of the through hole 431 in the inclined direction is much smaller than that of the positive pressure air inlet, when the positive pressure gas flow passes through the through hole 431 in the inclined direction, a venturi principle is generated in the dirt sucking channel, wherein the venturi principle means that the gas flow is thin and the gas flow speed is accelerated; when the positive pressure gas flow passes through the inclined upward through hole 431, the gas flow is thinned, the upward flow speed of the gas is increased, and the upward flow speed of the gas in the dirt suction channel is increased, so that the negative pressure in the dirt suction channel is increased; under the dual actions of positive pressure gas in forward lifting and negative pressure increasing of the sludge 7 deposited in the sewage sucking channel, the sewage sucking system can lift the sucking depth from less than 10 m to 40-70 m in the prior art.
The second vacuum pump d continuously pumps positive pressure air 5 into the cavity between the outer wall of the inner cylinder 43 and the inner wall of the outer cylinder 42, and the air flow continuously and rapidly passes through the through holes 431, so that the sewage 6 and the deposited sludge 7 can be prevented from blocking the through holes 431 on the inner cylinder 43, and even if the through holes 431 are blocked, the continuous positive pressure air flow can flush the sludge at the blocked position; the second vacuum pump d is positioned on the cleaning and soil sucking vehicle in operation.
The utility model also relates to a sewage suction system, the sewage suction component is connected with a sewage suction pipe a of the sewage suction system through a quick connector, one end of the quick connector is connected and locked with the sewage suction pipe a, the other end of the quick connector is connected and locked with a sewage suction hose 2, the joint of the sewage suction pipe a and the sewage suction hose 2 is locked through a clamp 3 on the sewage suction hose 2, and an interface of a connecting air pipeline on the cylinder assembly 4 is communicated with an exhaust port of a vacuum pump.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model and is not intended to limit the utility model, but rather the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be readily apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a dirt absorbing subassembly, includes connecting portion (1), dirt absorbing hose (2), clamp (3), its characterized in that: also comprises a cylinder assembly (4); the cylinder assembly (4) is connected to the bottom end of the dirt suction hose (2), and the cylinder assembly (4) comprises an interface for connecting an air pipeline; the clamp is arranged at one end part of the dirt absorbing hose (2) and is used for connecting and locking the dirt absorbing hose and a dirt absorbing pipe (a) of the dirt absorbing system.
2. A soil pick-up assembly as claimed in claim 1, wherein: the cylinder assembly (4) comprises an outer cylinder (42), an inner cylinder (43), an inner cylinder sealing plate (44) and an outer cylinder sealing plate (44) and a sewage suction pipe joint (41); the bottom surfaces of the outer cylinder (42), the inner cylinder (43), the inner cylinder sealing plate (44) and the outer cylinder sealing plate (41) form a cavity structure with a gap between the inner cylinder and the outer cylinder.
3. A soil pick-up assembly as claimed in claim 2, wherein: the outer cylinder (42) and the inner cylinder (43) are hollow cylindrical bodies, the radial width of the inner cylinder (43) is smaller than that of the outer cylinder (42), and a cavity is formed between the inner wall of the outer cylinder (42) and the outer wall of the inner cylinder (43); the bottom surface of the inner cylinder (43) is provided with an opening for sewage (6) or sludge (7) to enter the inner cylinder (43) from the opening of the bottom surface of the inner cylinder (43).
4. A soil pick-up assembly as claimed in claim 2, wherein: the inner cylinder (43) is provided with a through hole (431).
5. A soil pick-up assembly as claimed in claim 2, wherein: the bottom surface diameter of inner tube (43) is less than the bottom surface diameter of urceolus (42), and inside and outside barrel shrouding (44) are connected between inner tube (43) and urceolus (42), and inside and outside barrel shrouding (44) are located the inner tube (43) outside and are inboard in urceolus (42), and inside and outside barrel shrouding (44), inner tube (43), urceolus (42) three bottom surfaces are leveled, and the gap between the bottom surface of inner tube (43) and the bottom surface of urceolus (42) is sealed by inside and outside barrel shrouding (44).
6. A soil pick-up assembly as claimed in claim 2, wherein: the sewage suction pipe joint (41) is a lower joint of a quick joint, the quick joint comprises a lower joint and an upper joint, and the lower joint and the upper joint are tightly hooped through a clamp; the lower joint and the upper joint are hooped to form a sewage or sludge flow channel with hollow inside; the dirt sucking pipe joint (41) is connected to the top ends of the outer cylinder (42) and the inner cylinder (43), and the upper joint of the quick joint is connected with the bottom end of the dirt sucking hose (2) to realize connection of the cylinder assembly (4) and the dirt sucking hose (2).
7. A soil pick-up assembly as claimed in claim 2, wherein: the top surface diameter of inner tube (43) is less than the top surface diameter of urceolus (42), exists the gap between the top surface of inner tube (43) and the top surface of urceolus (42), and when dirt sucking pipe joint (41) was welded on the top of urceolus (42) and inner tube (43), the top surface of dirt sucking pipe joint (41) bottom surface wall thickness part sealed top surface and the top surface of urceolus (42) between have the gap.
8. A soil pick-up assembly as claimed in claim 2, wherein: the outer cylinder (42) is provided with a through hole, and one end of the elbow (45) is communicated with a cavity between the inner cylinder (43) and the outer cylinder (42) through the through hole on the outer cylinder (42); the other end of the elbow (45) is connected with an air pipe joint (46); the air pipe joint (46) is connected with a second vacuum pump (d) through a pipeline.
9. A soil pick-up assembly as claimed in claim 1, wherein: the connecting part (1) is connected to the top end of the dirt suction hose (2), the connecting part (1) is a quick connector, the quick connector comprises a lower connector and an upper connector, the lower connector included in the connecting part (1) is connected to the top end of the dirt suction hose (2), and the upper connector included in the connecting part (1) is connected to the bottom end of the dirt suction pipe (a) for cleaning a vehicle; the clamp (3) is used for tightening the lower joint and the upper joint of the connecting part (1) so as to connect the sewage suction hose (2) with the bottom end of the sewage suction pipe (a).
10. A soil pick-up system comprising the soil pick-up assembly of claim 1, said soil pick-up assembly being connected to a soil pick-up tube (a) of the soil pick-up system by a quick connector, one end of said quick connector being connected to said soil pick-up tube (a), the other end of said quick connector being connected to a soil pick-up hose (2) and being locked by a clamp (3) on said soil pick-up hose (2), said air pipe connection interface on said cylinder assembly (4) being connected to an air outlet of said vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320703937.XU CN219825563U (en) | 2023-04-03 | 2023-04-03 | Dirt sucking assembly and dirt sucking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320703937.XU CN219825563U (en) | 2023-04-03 | 2023-04-03 | Dirt sucking assembly and dirt sucking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219825563U true CN219825563U (en) | 2023-10-13 |
Family
ID=88248151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320703937.XU Active CN219825563U (en) | 2023-04-03 | 2023-04-03 | Dirt sucking assembly and dirt sucking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219825563U (en) |
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2023
- 2023-04-03 CN CN202320703937.XU patent/CN219825563U/en active Active
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