CN213760872U - Filter element lifting mechanism of intelligent water treatment device - Google Patents
Filter element lifting mechanism of intelligent water treatment device Download PDFInfo
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- CN213760872U CN213760872U CN202021995083.XU CN202021995083U CN213760872U CN 213760872 U CN213760872 U CN 213760872U CN 202021995083 U CN202021995083 U CN 202021995083U CN 213760872 U CN213760872 U CN 213760872U
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Abstract
The utility model discloses a filter element lifting mechanism of an intelligent water treatment device, which comprises a lifting platform and an electric control lifting driving mechanism (17); the first end of the electric control lifting driving mechanism is fixed, and the second end of the electric control lifting driving mechanism is connected with the lifting platform; a filter element of the intelligent water treatment device is connected with the lifting platform; the motion direction of the electric control lifting driving mechanism is the same as the axial direction of the filter element. The electric control lifting driving mechanism is an electric push rod mechanism or a hydraulic push rod mechanism. The electric control lifting driving mechanism comprises a plurality of driving units. This intelligence water treatment facilities's filter core elevating system can realize that the filter core goes up and down, easy to carry out, and stability is good.
Description
Technical Field
The utility model relates to a filter core elevating system of intelligence water treatment facilities.
Background
The existing waste water precipitation mode generally adopts a reservoir with a larger volume, a flocculating agent is added after the waste water is filled, purified water is pumped out after the reaction is finished, waste is discharged, and a small-volume intelligent electric control waste water precipitation and purification device does not exist.
When designing the wastewater treatment equipment, a filter element lifting mechanism needs to be designed; the lifting mechanism is required to be convenient for circular lifting action.
Therefore, it is necessary to design a filter element lifting mechanism of an intelligent water treatment device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a filter core elevating system of intelligence water treatment facilities is provided, this filter core elevating system of intelligence water treatment facilities simple structure, easy to carry out.
The technical solution of the utility model is as follows:
a filter element lifting mechanism of an intelligent water treatment device comprises a lifting platform and an electric control lifting driving mechanism;
the first end of the electric control lifting driving mechanism is fixed, and the second end of the electric control lifting driving mechanism is connected with the lifting platform; a filter element of the intelligent water treatment device is connected with the lifting platform; the motion direction of the electric control lifting driving mechanism is the same as the axial direction of the filter element.
The electric control lifting driving mechanism is an electric push rod mechanism or a hydraulic push rod mechanism.
The electric control lifting driving mechanism comprises a plurality of driving units. As in embodiment 1, 2 electric push rods are used, or alternatively, 3 to 4 push rods are used, so that the stress is more uniform and the lifting is more stable.
The intelligent water treatment device comprises an outer barrel, a filter element lifting mechanism, a liquid pumping mechanism and a liquid inlet pipe;
the bottom of the outer barrel is provided with a stand which plays a supporting role; the bottom of the outer barrel is also provided with a discharge pipe for discharging waste materials, and the discharge pipe is provided with a discharge valve;
the filter element is arranged in the outer barrel; a plurality of filter holes are arranged on the barrel wall of the filter element;
the lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the outer barrel, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump and a water pumping pipe connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping water filtered in the filter element;
the first end of the electric control lifting driving mechanism is fixed on the outer wall of the outer barrel, or the first end of the electric control lifting driving mechanism is fixed on the ground outside the outer barrel.
The filter element is a rotary filter element;
the lifting platform is provided with a bearing, and a rotating shaft of the filter element is inserted in the bearing; the lifting platform is also provided with a motor and a transmission mechanism for driving the rotating shaft to rotate.
The intelligent water treatment device comprises a container, a filter element lifting mechanism, a liquid pumping mechanism and a liquid inlet pipe;
the bottom of the container is also provided with a discharge pipe for discharging waste materials, and a discharge valve is arranged on the discharge pipe;
and the first end of the electric control lifting driving mechanism is fixed on a cross beam of the bracket.
The lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the container, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump and a water pumping pipe connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping water filtered in the filter element;
the filter element is arranged in the container; the barrel wall of the filter element is provided with a plurality of filter holes.
N filter elements are provided; the container is a sedimentation tank, and N electric control lifting driving mechanisms are arranged on the cross beam; n electric control lifting driving mechanisms respectively drive N lifting platforms, so that N filter elements are driven to do lifting motion, N is a natural number, and N is larger than or equal to 2. Preferably, a plurality of electrically controlled actuating mechanism synchronous motion, raise the efficiency.
The beneficial technical effects are as follows:
the utility model discloses a filter element lifting mechanism of an intelligent water treatment device, which has various forms of an electric control lifting driving mechanism, for example, a first end is directly fixed on an outer barrel, or fixed on the ground, or fixed through a bracket, or used for driving a plurality of lifting platforms on the bracket and a beam simultaneously, thereby driving a plurality of filter elements to realize lifting movement; therefore, the specific selection of the lifting mechanism is determined according to practical application; see in detail 3 examples. The filter element lifting mechanism is driven by a relay or other modes and is a key mechanism of the intelligent water treatment device.
Drawings
FIG. 1 is a schematic structural view (front view) of a water treatment device in a filter element descending state;
FIG. 2 is a schematic view (side view) of the water treatment device in a lowered state of the filter cartridge;
FIG. 3 is a schematic structural view (front view) of the water treatment device in a filter element lifting state;
FIG. 4 is a schematic view (side view) of the water treatment device in a filter cartridge lifting state;
FIG. 5 is a perspective view of a cartridge frame having square apertures;
FIG. 6 is a front view of a cartridge frame having square apertures;
FIG. 7 is a top view of a cartridge frame having square apertures;
FIG. 8 is a front view of a cartridge frame having a prismatic aperture;
FIG. 9 is a front view of a cartridge frame having a regular hexagonal aperture;
FIG. 10 is a block diagram of a relay control system;
FIG. 11 is a water treatment flow diagram;
FIG. 12 is a schematic view of a cartridge lifting mechanism supported by a frame;
fig. 13 is a schematic structural diagram of a plurality of filter cartridges sharing a support mechanism.
Description of reference numerals: 1-a flow sensor, 2-a liquid pump, 3-a water pumping pipe, 4-a liquid level sensor, 5-a liquid inlet pipe, 6-a rotating shaft, 7-a filter element, 8-an outer barrel, 9-a magnetic floating reverse water collector, 10-a machine foot, 11-a discharge valve, 12-a discharge pipe, 13-a motor, 14-a first gear, 15-a second gear, 16-a bearing and 17-an electric control lifting driving mechanism. 18-lifting platform. 19-support, 20-beam, 21-sedimentation tank.
71-upper cover, 72-longitudinal support strip, 73-window hole; 74-mounting holes; 75-transverse support bar, 76-conical barrel bottom. 77-water inlet hole, 78-filter screen;
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
example 1: referring to fig. 1-4, a filter element lifting mechanism of an intelligent water treatment device comprises a lifting platform and an electric control lifting driving mechanism (17);
the first end of the electric control lifting driving mechanism is fixed, and the second end of the electric control lifting driving mechanism is connected with the lifting platform; a filter element of the intelligent water treatment device is connected with the lifting platform; the motion direction of the electric control lifting driving mechanism is the same as the axial direction of the filter element.
The electric control lifting driving mechanism is an electric push rod mechanism or a hydraulic push rod mechanism.
The electric control lifting driving mechanism comprises a plurality of driving units. As in embodiment 1, 2 electric push rods are used, or alternatively, 3 to 4 push rods are used, so that the stress is more uniform and the lifting is more stable.
The intelligent water treatment device comprises an outer barrel, a filter element (7), a filter element lifting mechanism, a liquid pumping mechanism, a dosing mechanism and a liquid inlet pipe (5);
the bottom of the outer barrel is provided with a stand (10) for supporting; the bottom of the outer barrel is also provided with a discharge pipe (12) for discharging waste materials, and a discharge valve (11) is arranged on the discharge pipe;
the filter element is arranged in the outer barrel; a plurality of filter holes are arranged on the barrel wall of the filter element;
the lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the outer barrel, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the dosing mechanism is arranged on the outer barrel and used for putting the water treatment medicament into the outer barrel; the drug administration mechanism is controlled by the controller; the dosage can be controlled, such as quantitative administration through a valve or other mechanisms;
the medicament to be treated (such as flocculating agent, decolorizing agent and the like) can enter the container through different channels or enter the container through the same channel;
adding a preset medicament according to the preset water inflow, and stopping administration after the medicament is added. Or stopping the medicine feeding when the water feeding valve is closed.
The drug is administered by the administration means, and the drug is administered simultaneously when water is added, and the drug is preferably added through a separate tube, and preferably a solution with the drug is administered. Controlling the liquid medicine to enter or stop entering through a valve; or directly into a solid or powder medicament, not shown. Preferably, the opening is arranged on the outer wall of the container, and the medicament is mixed with common water (such as tap water) through a pipeline and then enters the container.
The mixture can enter the container, so that a liquid inlet valve can be controlled, and the dosing pipe and the wastewater inlet pipe are separated in advance, and the mixing of the medicament and the wastewater is completed only when water enters;
or the water and the medicine are respectively fed through different pipelines, but the medicine adding and the water adding are carried out simultaneously.
The drug administration control unit (switch or invention) is connected with the water inlet valve relay; when the start button is pressed down or the second delay relay switch is closed, the water inlet valve and the dosing control unit are opened; when the stop button is pressed down or the upper liquid level detects that the liquid level reaches the preset upper limit height, closing the water inlet valve; after the dosage reaches the preset dosage (realized by a timer and the like), or the water inlet valve is closed, the dosage control unit is closed;
the liquid pumping mechanism comprises a liquid pump (2) and a water pumping pipe (3) connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping water filtered in the filter element;
the first end of the electric control lifting driving mechanism is fixed on the outer wall of the outer barrel (8), or the first end of the electric control lifting driving mechanism is fixed on the ground outside the outer barrel.
The filter element is a rotary filter element;
a bearing is arranged on the lifting platform, and a rotating shaft (6) of the filter element is inserted in the bearing; the lifting platform is also provided with a motor (13) and a transmission mechanism for driving the rotating shaft to rotate.
the bottom of the container is also provided with a discharge pipe 12 for discharging waste materials, and a discharge valve 11 is arranged on the discharge pipe;
the first end of the electric control lifting driving mechanism is fixed on a cross beam 20 of the bracket 19.
The lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the container, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump 2 and a water pumping pipe 3 connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping out water filtered in the filter element;
the filter element is arranged in the container; the barrel wall of the filter element is provided with a plurality of filter holes.
Example 3: as shown in fig. 13, the main mechanism of the filter element lifting mechanism of the intelligent water treatment device is relative to the embodiments 1 and 2, and a sedimentation tank is used for replacing an outer barrel; therefore, the embodiment is suitable for treating a large amount of wastewater at one time, and specifically, the intelligent water treatment device comprises a container, a filter element 7, a filter element lifting mechanism, a liquid pumping mechanism and a liquid inlet pipe 5;
the bottom of the container is also provided with a discharge pipe for discharging waste materials, and a discharge valve is arranged on the discharge pipe; the tapping pipe and the tapping valve are not shown in the figure;
the first end of the electric control lifting driving mechanism is fixed on a cross beam 20 of the bracket 19.
The lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the container, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump 2 and a water pumping pipe 3 connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping out water filtered in the filter element;
the filter element is arranged in the container; the barrel wall of the filter element is provided with a plurality of filter holes.
3 filter elements are provided; the container is a sedimentation tank 21, and 3 electric control lifting driving mechanisms are arranged on the cross beam; 3 automatically controlled lift actuating mechanism drives 3 lift platforms respectively to drive 3 filter cores and make elevating movement, 3 are the natural number. Preferably, a plurality of electrically controlled actuating mechanism synchronous motion, raise the efficiency.
The filter element is a rotary filter element;
the lifting platform is provided with a bearing, and the rotating shaft 6 of the filter element is inserted in the bearing; the lifting platform is also provided with a motor 13 and a transmission mechanism for driving the rotating shaft to rotate.
In addition, other relevant contents about the intelligent water treatment device are introduced as follows:
referring to fig. 5-9, a rotary filter element of an intelligent water treatment device comprises a filter element outer frame, a filter screen and a rotating shaft 6; the rotating shaft is inserted in the middle of the outer frame of the filter element and fixed; the rotating shaft is positioned in the central cavity of the outer frame of the filter element; the filter screen covers and is fixed on the periphery of the outer frame of the filter element, and a plurality of filter holes are arranged on the filter screen; the bottom of the rotary filter element is provided with a sealing barrel bottom; the barrel bottom is butted with the bottommost end of the outer frame; the lower end of the filter screen and the upper end of the barrel bottom are sealed;
the side of the outer frame of the filter element is provided with a plurality of windows 73;
the rotating shaft can drive the outer frame of the filter element and the filter screen to rotate when rotating.
The outer frame is cylindrical; the rotary filter element also comprises an upper cover, and the upper cover is butted with the upper end of the filter element shell; mounting holes 74 are formed in the upper cover and the barrel bottom, and the rotating shaft is inserted into the 2 mounting holes and fixed; the outer wall of the rotating shaft and the mounting hole at the bottom of the barrel are sealed to prevent water in the rotary filter element from flowing out of the filter element.
The lower end of the rotating shaft is positioned between the bottom of the outer frame of the filter element and the bottom of the barrel, and the rotating shaft is hollow; the lower end of the rotating shaft is provided with at least one water inlet hole 77; a water pumping pipe 3 is arranged in the rotating shaft. Preferably 2-4 water inlets.
The bottom of the rotating shaft is sealed or provided with a magnetic levitation reverse water collector. The lower end of the rotating shaft is sealed or semi-sealed, the semi-sealing means that the bottom of the rotating shaft is provided with a magnetic levitation reverse water collector, and when the outer barrel is filled with water, a floating ball in the magnetic levitation reverse water collector is jacked and sealed under the buoyancy action of the water.
The rotary filter element is connected with a lifting platform 18 through a lifting driving mechanism, and the upper end of the rotating shaft is inserted in a bearing 16 on the lifting platform; the rotating shaft is connected with a motor 13 in a transmission way through a transmission mechanism; the transmission mechanism and the motor are both arranged on the lifting platform.
The filter screen is provided with etching filter holes; the filter screen formed based on the etching technology can achieve very fine and uniform filter holes, the diameters of the filter holes can be designed into different sizes according to requirements, and if only rough filtering is needed, the filter holes can be designed to be larger, such as millimeter level; if fine filtration is required, the filtration pores can be made smaller, and the diameter can be in the order of 0.1 mm.
The window holes on the side part of the outer frame of the filter element are uniformly distributed. The fingers are arranged in an array with equal intervals.
The aperture 73 in the side of the cartridge housing is at least one or a mixture of rectangles, squares (see fig. 5 and 6), parallelograms (fig. 8 is a diamond), regular pentagons, regular hexagons (see fig. 9), or regular octagons. The multiple mixing means that two or more than two kinds of holes are mixed, for example, the holes can be partially square, partially regular hexagon, square can be square arranged in forward direction, and square placed in oblique direction can be used.
The filter element outer frame is an integrally formed outer frame, for example, a rectangular frame net is adopted, and the filter element outer frame is welded together after being butted front and back (or left and right) to form a cylindrical frame body.
The rotary filter element has the following characteristics:
(1) the whole structure adopts a double-layer structure with a rotating shaft, the inner layer is a frame, the outer layer is a filter screen, and the frame, the barrel cover and the barrel bottom can jointly fix the rotating shaft; therefore, the structure is compact, and the sealing performance is better;
(2) the water suction pipe is arranged in the rotating shaft, so that the appearance is more attractive;
(3) when the magnetic floating reverse water collector is used, the water suction pipe is closed when water exists at the bottom, and impurities in the water suction pipe can be discharged when no water exists at the bottom, so that the magnetic floating reverse water collector has a remarkable effect.
(4) The automatic cleaning device is matched with the rotary driving mechanism, the lifting mechanism and the water spraying structure, so that the automatic cleaning of the outer wall can be realized;
to sum up, the filter element of the intelligent water treatment device has compact structure and attractive appearance, and is a key mechanism in the water treatment device.
Referring to fig. 10-11, a relay control system of an intelligent water treatment device includes a water inlet control circuit, a filter element lifting control circuit, a liquid pump control circuit, and a discharge control circuit;
the relay control system also comprises a start button, a stop button, a first delay relay, a second delay relay, an upper liquid level detection circuit, a lower liquid level detection circuit, an upper limit detection circuit (such as an upper limit switch) and a lower limit detection circuit (such as a lower limit switch);
the first time delay relay is used for controlling the reaction time; the second time delay relay is used for controlling the discharging time;
(1) water inlet control circuit
The water inlet control circuit is connected with the starting button, the stopping button, the second delay relay switch, the upper liquid level detection circuit and the water inlet valve relay; when the starting button is pressed down or the second delay relay switch is closed, the water inlet valve is opened; when the stop button is pressed down or the upper liquid level detects that the liquid level reaches the preset upper limit height, closing the water inlet valve;
(2) filter element lifting control circuit
The filter element lifting control circuit is used for driving the lifting platform to lift through the electric control lifting mechanism; the filter element lifting control circuit is connected with the electric control lifting mechanism, the starting button, the stopping button, the upper limit detection circuit, the lower limit detection circuit and the second time delay relay switch; when the start button is pressed down, the filter element rises, when the stop button is pressed down, the filter element stops acting, the upper limit detection circuit detects that the filter element reaches the upper limit position and stops rising, the lower limit detection circuit detects that the filter element reaches the lower limit position and stops falling, and when the second time delay relay switch acts, the reaction is finished, and the filter element starts falling;
(3) discharge control circuit
The discharge control circuit is connected with the lower liquid level detection circuit, the second delay relay switch, the discharge valve relay and the second delay relay; when the lower liquid level detection circuit detects a first lower limit liquid level of the liquid level, a discharge valve relay is started to drive a discharge valve to open; and simultaneously starting a second time delay relay; when the second time delay relay switch acts, the discharging is completed, and the discharging control circuit drives the discharging valve relay to lose power so as to close the discharging valve.
The filter element lifting mechanism of the intelligent water treatment device also comprises a filter element rotation control circuit;
the filter element rotation control circuit is used for controlling the motor to rotate or stop rotating through the relay;
the filter element rotation control circuit is connected with the motor power supply relay, the starting button, the stopping button, the second time delay relay switch and the upper limit detection circuit; when the starting button is pressed down or the second delay relay switch is switched off (indicating that discharging is finished), the starting motor drives the motor to be switched on through the motor power supply relay, so that the filter element is driven to rotate; when the stop button is pressed down, or the upper limit detection circuit detects that the filter element rises to the upper limit position, the motor stops rotating through the relay, and the filter element stops rotating.
The upper limit detection circuit and the lower limit detection circuit employ a photoelectric sensor, a magnetic sensor, or a limit switch (a travel switch).
The upper liquid level detection circuit and the lower liquid level detection circuit employ liquid level sensors and comparators (or amplifiers).
The electric control lifting mechanism is an electric push rod or a hydraulic push rod.
The water inlet control circuit, the filter element lifting control circuit, the liquid pump control circuit, the filter element rotation control circuit and the discharge control circuit adopt PLC or discrete logic devices (combined with a NOR gate).
The specific water treatment process is shown in figure 11.
Claims (8)
1. A filter element lifting mechanism of an intelligent water treatment device is characterized by comprising a lifting platform and an electric control lifting driving mechanism (17);
the first end of the electric control lifting driving mechanism is fixed, and the second end of the electric control lifting driving mechanism is connected with the lifting platform; a filter element of the intelligent water treatment device is connected with the lifting platform; the motion direction of the electric control lifting driving mechanism is the same as the axial direction of the filter element.
2. The filter element lifting mechanism of the intelligent water treatment device according to claim 1, wherein the electric control lifting driving mechanism is an electric push rod mechanism or a hydraulic push rod mechanism.
3. The filter element lifting mechanism of intelligent water treatment device according to claim 1, wherein the electrically controlled lifting driving mechanism comprises a plurality of driving units.
4. The filter element lifting mechanism of the intelligent water treatment device according to any one of claims 1 to 3, wherein the intelligent water treatment device comprises an outer barrel, a filter element (7), a filter element lifting mechanism, a liquid pumping mechanism and a liquid inlet pipe (5);
the bottom of the outer barrel is provided with a stand (10) for supporting; the bottom of the outer barrel is also provided with a discharge pipe (12) for discharging waste materials, and a discharge valve (11) is arranged on the discharge pipe;
the filter element is arranged in the outer barrel; a plurality of filter holes are arranged on the barrel wall of the filter element;
the lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the outer barrel, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump (2) and a water pumping pipe (3) connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping water filtered in the filter element;
the first end of the electric control lifting driving mechanism is fixed on the outer wall of the outer barrel (8), or the first end of the electric control lifting driving mechanism is fixed on the ground outside the outer barrel.
5. The filter element lifting mechanism of the intelligent water treatment device according to claim 4, wherein the filter element is a rotary filter element;
a bearing is arranged on the lifting platform, and a rotating shaft (6) of the filter element is inserted in the bearing; the lifting platform is also provided with a motor (13) and a transmission mechanism for driving the rotating shaft to rotate.
6. The filter element lifting mechanism of the intelligent water treatment device according to claim 1, wherein the intelligent water treatment device comprises a container, a filter element (7), a filter element lifting mechanism, a liquid pumping mechanism and a liquid inlet pipe (5);
the bottom of the container is also provided with a discharge pipe (12) for discharging waste materials, and a discharge valve (11) is arranged on the discharge pipe;
the first end of the electric control lifting driving mechanism is fixed on a beam (20) of a bracket (19),
the lifting platform is connected with the filter element and is used for driving the filter element to lift;
the liquid inlet pipe is used for guiding water to be purified into the container, and a liquid inlet valve is arranged on a water supply pipeline of the liquid inlet pipe;
the liquid pumping mechanism comprises a liquid pump (2) and a water pumping pipe (3) connected with the liquid pump, and the lower end of the water pumping pipe is positioned at the bottom in the filter element and used for pumping water filtered in the filter element;
the filter element is arranged in the container; the barrel wall of the filter element is provided with a plurality of filter holes.
7. The filter element lifting mechanism of the intelligent water treatment device according to claim 6,
n filter elements are provided; the container is a sedimentation tank (21), and N electric control lifting driving mechanisms are arranged on the cross beam; n electric control lifting driving mechanisms respectively drive N lifting platforms, so that N filter elements are driven to do lifting motion, N is a natural number, and N is larger than or equal to 2.
8. The filter element lifting mechanism of the intelligent water treatment device according to claim 6 or 7, wherein the filter element is a rotary filter element;
a bearing is arranged on the lifting platform, and a rotating shaft (6) of the filter element is inserted in the bearing; the lifting platform is also provided with a motor (13) and a transmission mechanism for driving the rotating shaft to rotate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022053039A1 (en) * | 2020-09-13 | 2022-03-17 | 陈志伟 | Sewage treatment device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022053039A1 (en) * | 2020-09-13 | 2022-03-17 | 陈志伟 | Sewage treatment device and system |
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