CN220845865U - Synchronous curing tank capable of synchronously intercepting sewage and dehydrating - Google Patents
Synchronous curing tank capable of synchronously intercepting sewage and dehydrating Download PDFInfo
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- CN220845865U CN220845865U CN202322651487.7U CN202322651487U CN220845865U CN 220845865 U CN220845865 U CN 220845865U CN 202322651487 U CN202322651487 U CN 202322651487U CN 220845865 U CN220845865 U CN 220845865U
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- flow control
- dehydration
- sewage interception
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- 239000010865 sewage Substances 0.000 title claims abstract description 99
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000018044 dehydration Effects 0.000 claims abstract description 58
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 58
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 22
- 239000011148 porous material Substances 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 abstract description 7
- 238000011105 stabilization Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 description 9
- 210000003608 fece Anatomy 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000010871 livestock manure Substances 0.000 description 7
- 230000002550 fecal effect Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000011152 fibreglass Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Treatment Of Biological Wastes In General (AREA)
Abstract
The utility model provides a synchronous curing pond for synchronous sewage interception and dehydration, which is mainly characterized in that a synchronous sewage interception and dehydration flow control device is connected with a sludge treatment device formed by two groups of septic tanks which are connected in parallel, the synchronous sewage interception and dehydration flow control device is a flow control device formed by two stages of water diversion flow control devices and two sewage interception and dehydration tanks, the first stage of water diversion flow control device controls the two sewage interception and dehydration tanks to synchronously intercept sewage and dehydrate sundries through the opening and closing of the two flow control gate valves, and the second stage of water diversion flow control device controls the input of the two groups of septic tanks through the opening and closing of the at least two flow control gate valves, so that the two groups of septic tanks perform synchronous anaerobic stabilization treatment of the sewage. The utility model adopts a two-stage water diversion flow control technology, so that the sewage interception tank has the functions of intercepting sewage and dehydrating sundries synchronously, and the septic tank has the function of synchronous anaerobic stabilization treatment of the sewage and the excrement.
Description
Technical Field
The utility model relates to a sludge treatment device.
Background
The synchronous curing tank is used for anaerobic curing of dispersible manure and consists of a water diversion flow control device and two groups of septic tanks, a flow control gate valve of the water diversion flow control device controls the manure input direction, one group of septic tanks is used for storing and accumulating the manure, and the other group of septic tanks is used for synchronously fermenting and curing the manure. The waste is difficult to cure, particularly some larger waste is mixed in the waste, and the waste is continuously mixed in the curing sludge to affect the subsequent direct utilization of the curing sludge as an organic fertilizer, so that the waste is necessary to be trapped by adopting devices such as a coarse grid before the waste enters an anaerobic treatment tank, and the waste is wet waste and inconvenient to clean under the condition of continuously inputting the waste. In order to realize the interception of the sundries of the manure and the airing and dehydration of the wet garbage at the same time, two dirt interception tanks are used, one dirt interception tank is used for intercepting the input of the manure, and the other dirt interception tank is used for airing and dehydration of the wet garbage; therefore, a two-stage water diversion flow control device is adopted for input control of synchronous curing treatment of the excrement, the water diversion flow control device is provided with at least two flow control gate valves, the first-stage water diversion flow control device controls two sewage interception and dehydration tanks, one flow control gate valve is opened, the other flow control gate valve is closed, and the two sewage interception and dehydration tanks synchronously intercept sundries and dehydrate sundries; the second-stage water diversion flow control device is used for controlling the excrement and urine input of two groups of septic tanks, the flow control gate valve in front of one group of septic tanks is opened for storing and accumulating the excrement and urine of the septic tanks, and the flow control gate valve in front of the other group of septic tanks is closed for fermenting and curing the excrement and urine of the septic tanks.
Disclosure of Invention
The utility model aims to design a sludge treatment device which controls two sewage interception and dehydration tanks to carry out synchronous sewage interception and dehydration by a first-stage water diversion and flow control device and controls two groups of septic tanks to carry out synchronous anaerobic stabilization treatment of the sewage.
The utility model relates to a synchronous curing pond for synchronous sewage interception and dehydration, which adopts the technical scheme that a synchronous sewage interception and dehydration flow control device is connected with a sludge treatment device formed by two groups of parallel septic tanks, wherein the synchronous sewage interception and dehydration flow control device is a flow control device formed by two stages of water diversion and flow control devices and two sewage interception and dehydration tanks, the two sewage interception and dehydration tanks are arranged at the middle upper part of a synchronous sewage interception and dehydration well groove, a fecal sewage flow passage is arranged below the sewage interception and dehydration tanks, a first stage of water diversion and flow control device is provided with two flow control gate valves, the two flow control gate valves are respectively communicated with the two sewage interception and dehydration tanks, a second stage of water diversion and flow control device is provided with at least two flow control gate valves, a pipeline led out by each flow control gate valve is communicated with one septic tank, a drain pipe is arranged at the water outlet end of each septic tank, or a flow control gate valve is arranged on the drain pipe of each septic tank, or a water diversion and flow control well leading to the water outlet end of each drain pipe is provided with a flow control gate valve in front of the mouth of the drain pipe; the flow control gate valve arranged at the water outlet end of the septic tank is an anti-backflow gate valve which is opened or closed simultaneously with the flow control gate valve at the input end of the septic tank.
The sludge treatment device is composed of a synchronous sewage interception and dehydration flow control device and two groups of septic tanks connected in parallel, two flow control gate valves of a first-stage water separation flow control device control two sewage interception and dehydration tanks to intercept sewage and dehydrate, one flow control gate valve in front of the sewage interception and dehydration tank is opened, the excrement is input and intercepted, the other flow control gate valve in front of the sewage interception and dehydration tank is closed, sundries are aired and dehydrated, the two flow control gate valves are opened or closed in a rotating way, and the two sewage interception and dehydration tanks are opened or dehydrated in a rotating way; the second-stage water diversion flow control device is used for controlling the two groups of septic tanks to perform synchronous anaerobic stabilization treatment, each group of septic tanks is provided with one septic tank, the flow control gate valve in front of one group of septic tanks is opened, the excrement is input and accumulated, the flow control gate valve in front of the other group of septic tanks is closed, anaerobic stabilization digestion treatment is performed on the excrement, the curing time is reached, and the excrement is converted into cured sludge; after the mature sludge is cleared, the front flow control gate valves of the two groups of septic tanks are switched to be opened or closed, and the two groups of septic tanks are used for alternately storing, accumulating, fermenting and curing the excrement.
The synchronous sewage interception and dehydration flow control device is a flow control device formed by two stages of water diversion flow control devices and two sewage interception and dehydration tanks, wherein the two stages of water diversion flow control devices and the two sewage interception and dehydration tanks are arranged in a synchronous sewage interception and dehydration well, or the first stage or the second stage of water diversion flow control devices and the two sewage interception and dehydration tanks are arranged in a synchronous sewage interception and dehydration well, or only the two sewage interception and dehydration tanks are arranged in the synchronous sewage interception and dehydration well, and the water diversion flow control device is arranged in a water diversion and dehydration well; the first-stage water diversion and flow control device is arranged between the two sewage interception and dewatering tanks, the two flow control gate valves are respectively communicated with the two sewage interception and dewatering tanks, and at least two flow control gate valves of the second-stage water diversion and flow control device are respectively arranged in front of the water outlet pipe orifice at the bottom of the synchronous sewage interception and dewatering well tank.
The flow control gate valve is a flow control gate or a flow control valve, the flow control gate is a inclined pressure gate or a lifting gate, and the flow control valve is a butterfly valve or a ball valve or a stop valve.
The water diversion flow control device is at least two flow control devices provided with flow control gate valves, or a water diversion flow control well provided with at least two flow control gate valves, the flow control gate is arranged in front of the pipe orifices of at least two water outlet pipes in the water diversion flow control well, and the flow control valve is arranged on at least two branch pipes in the water diversion flow control well; the guiding output direction is controlled by opening or closing at least two flow control gate valves.
The sewage interception and dewatering tank is an upper opening tank body, the tank body bottom plate is a grid bottom plate or an open bottom plate, the side wall plate of the tank body is a grid plate or a pore plate or a partition plate or a well tank side wall, the sewage interception and dewatering tank is arranged at the middle upper part of the synchronous sewage interception and dewatering well tank, and the tank body bottom plate is higher than the height of a water outlet pipe orifice of the synchronous sewage interception and dewatering well tank.
The inclined pressure gate is a gate formed by an inclined bearing plate and an inclined pressure gate plate, or a gate formed by an inclined pressure flow passage and an inclined pressure gate plate;
The inclined pressure bearing plate is a panel which is obliquely arranged on the overflow section in front of the orifice of the well wall, the inclined pressure bearing plate is provided with an overflow hole, the inclined pressure bearing plates on two sides of the overflow hole are provided with stopping devices, or the inclined pressure bearing plates above the overflow channel are provided with hinges, and the hinges are connected with the inclined pressure flashboard.
The inclined pressure flow passage is a flow passage with a right triangle or right trapezoid side face, the front face of the passage is an inclined pressure bearing plate, two sides of the passage are vertical passage side wall plates which are right triangle or right trapezoid, the back face of the passage is directly communicated with a well wall hole, or the back face of the passage is a passage back wall plate with an overflow hole, the inclined pressure bearing plate on the front face is provided with an overflow hole, the inclined pressure bearing plates on the two sides of the overflow hole are provided with stopping devices, or the inclined pressure bearing plates above the overflow passage are provided with hinges, and the hinges are connected with the inclined pressure flashboard.
The inclined pressure flashboard is a flashboard of a flashboard panel, one side of the flashboard is connected with a hinge, a handle is arranged on the flashboard or a lifting cable chain is connected to the flashboard, or the inclined pressure flashboard is a T-shaped inclined pressure flashboard, the top of the flashboard panel is provided with a transverse flashboard cross arm, the flashboard cross arm and the panel are of a T shape, and the lifting cable chain is connected to the flashboard cross arm; or the inclined pressure flashboard is provided with stop blocks in the middle parts of two sides of the flashboard panel, the stop blocks from the upper part of the flashboard panel or from two sides are connected with a cable lifting chain, and the stop blocks are baffles or pipes or columns protruding outwards from the flashboard panel; the wall of the well above the inclined pressure gate is provided with a hanging device for hanging the inclined pressure gate plate.
When the gate is closed, the inclined pressure flashboard is stopped on the inclined pressure bearing plate, the plate surface covers the overflow hole, or the inclined pressure flashboard connected by the hinge is put down and covers the overflow hole, and when the gate is opened, the inclined pressure flashboard is lifted or lifted from the overflow hole.
The septic tank is a sedimentation digestion tank with at least two spaces, the inner space of the septic tank is divided into sedimentation tanks with at least two spaces by partition walls or cambered surface partition walls, or the septic tank is a baffled treatment tank with an upper partition wall and a lower partition wall which are arranged in a staggered mode, or the septic tank is a combined treatment tank with at least two monomer prefabricated sedimentation tanks connected in series by an overflow connecting pipe, an overflow hole or an overflow pipe is arranged on the partition walls or the cambered surface partition walls below the liquid level in the septic tank, or an overflow hole or an overflow pipe is arranged on the partition walls or the cambered surface partition walls below the liquid level in the septic tank, and a vent hole is arranged on the partition walls or the cambered surface partition walls above the liquid level; the septic tank is a brick building septic tank, or a reinforced concrete building septic tank, or a glass fiber reinforced plastic integrated septic tank, or a cement integrated septic tank, or a septic tank combined by at least two concrete precast monomer sedimentation tanks; one end of the septic tank is provided with a septic tank input pipe, the other end of the septic tank is provided with a water outlet or a water draining device, the water draining device is a septic tank drain pipe, or a water draining tee joint for slowing down and slowing down, the water draining tee joint is connected with the septic tank drain pipe, each cell space of the septic tank is provided with an inspection opening and a cover plate, and the upper part of the side wall of the septic tank or the top plate of the septic tank or the inspection opening of the septic tank or the input pipe of the septic tank is provided with an exhaust pipe which is led to the outside upper part.
The water outlet tee joint for the deceleration and slow flow is a water outlet tee joint with a small-caliber overflow hole, the small-caliber overflow hole is arranged at the lower part of a vertical channel of the water outlet tee joint, and a horizontal pipe of the water outlet tee joint is connected with a septic tank drain pipe.
The septic tank input pipe is introduced into the septic tank from the tank wall above the liquid level in a straight pipe shape, or is introduced into the septic tank from the tank wall below the liquid level in a tee joint after entering the septic tank, or enters the septic tank and is transferred into the septic tank below the liquid level in an inverted L shape, or is introduced into the septic tank from the middle part of the tank wall below the liquid level.
The concrete precast single sedimentation tank is a hollow container with a circular or polygonal overlook shape, the hollow container is formed by assembling and combining reinforced concrete precast components, the container is provided with a bottom plate, side walls and a top plate, the side walls are provided with a water inlet hole and a water outlet hole, and the top plate is provided with an inspection hole and a cover plate.
The utility model is used for carrying out anaerobic stabilization fermentation treatment on the excrement and sewage, and converting the excrement and sewage batch into cured sludge; the method has the advantages that before the synchronous curing treatment of the excrement, the excrement interception pretreatment is carried out, the excrement interception and the impurity interception and the wet garbage impurity dehydration are carried out synchronously, and the maintenance of the excrement interception pretreatment is convenient.
Drawings
The structure of the present utility model will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic top plan view of embodiment 1 of the present utility model.
Fig. 2 is a schematic sectional view of a synchronous sewage interception and dehydration flow control device of embodiment 1 of the present utility model.
Fig. 3 is a schematic top plan view of embodiment 2 of the present utility model.
Fig. 4 is a schematic sectional view of a synchronous sewage interception and dehydration flow control device of embodiment 2 of the present utility model.
Fig. 5 is a schematic top plan view of embodiment 3 of the present utility model.
Fig. 6 is a schematic top plan view of embodiment 4 of the present utility model.
In the attached drawings, 1, a water inlet pipe; 2. a flow control gate or valve; 3. an overcurrent branch pipe; 4. a drain pipe; 5. an overflow hole; 6. a water outlet pipe; 7. dirt-cutting dewatering tank; 8. a water diversion flow control well; 9. a cambered surface baffle plate; 10. partition walls or baffles; 11. an overflow hole or an overflow pipe; 12. an inspection port and a cover plate; 13. grid plates or perforated plates or baffles; 14. a grid bottom plate or an apertured bottom plate; 15. a partition or partition wall; 16. a fecal sewage passage; 17. synchronous dirt-intercepting and dewatering well slots; 18. a bottom plate of the flow control well.
Description of the embodiments
In the embodiment 1 shown in fig. 1 and 2, a synchronous sewage interception and dehydration flow control device and a synchronous curing treatment device for the sewage, which is formed by two septic tanks connected in parallel, are arranged in the same synchronous sewage interception and dehydration well groove 17 with two stages of water diversion flow control devices; a first-stage water diversion flow control device is arranged between two sewage interception and dewatering tanks 7, the first-stage water diversion flow control device is two flow control gates 2 in a water diversion flow control well at a water inlet end, the flow control gates 2 are inclined pressure gates, the well body of the water diversion flow control well at the water inlet end consists of a flow control well bottom plate 18, two partition plates 15 and two side walls of a synchronous sewage interception and dewatering well 17, an overflow hole 5 is formed in each partition plate 15, a water inlet pipe 1 is arranged on the well wall of the synchronous sewage interception and dewatering well 17, a fecal sewage flow passage 16 is arranged below the flow control well bottom plate 18, the sewage interception and dewatering tank 7 is an upper opening groove body formed by a grid bottom plate 14, one partition plate 15 and two side walls of the synchronous sewage interception and dewatering well 17, the height of the grid bottom plate 14 is higher than that of each overflow branch pipe 3, the fecal sewage is in the lower part of the synchronous sewage interception and dewatering well 17 is led out of the two overflow 3, the flow control gates 2 are arranged in front of the mouth of the overflow branch pipe 3, and the flow control gates 2 are inclined pressure gates; the two overflow branch pipes 3 are respectively communicated with two septic tanks, the two septic tanks are brick septic tanks, a partition wall 10 is arranged in the middle of each septic tank, an overflow hole or overflow pipe 11 is arranged on the partition wall 10, an inspection hole and a cover plate 12 are arranged on the top plate of each septic tank space, each septic tank is provided with a drain pipe 4, the two drain pipes 4 are converged into a water diversion flow control well 8, a flow control gate 2 is arranged in front of the pipe orifice of each drain pipe 4, and a water outlet pipe 6 is led out from the water diversion flow control well 8; a cover plate is arranged at the top of the synchronous sewage interception and dehydration well groove 17 and the water diversion and flow control well 8; one flow control gate 2 of the first-stage water diversion and flow control device is opened, the connected sewage interception and dewatering tank 7 is used for intercepting the impurities of the manure, the other flow control gate 2 is closed, the impurities in the connected sewage interception and dewatering tank 7 are used for airing and dewatering, and the two flow control gates 2 are opened or closed alternately; the second-stage water diversion flow control device is characterized in that one flow control gate 2 arranged at the lower part of a synchronous sewage interception dewatering well groove 17 is opened, the communicated septic tanks are used for storing and accumulating the excrement, the flow control gate 2 connected with a drain pipe 4 behind the septic tanks is also opened, the other flow control gate 2 is closed, the septic tanks connected with an overflow branch pipe 3 are used for fermenting and curing under the working condition of stopping inputting the excrement, the flow control gate 2 connected with the drain pipe 4 behind the septic tanks is closed, sewage backflow is prevented, the flow control gates 2 at the two ends of the two septic tanks are alternately opened or closed, the two septic tanks are used for synchronous anaerobic stabilization treatment, and cured sludge is produced in batches.
As shown in fig. 3 and 4, in the embodiment 2, two flow control gates 2 are arranged in a water diversion flow control well 8 of a first stage water diversion flow control device, two flow control branch pipes 3 are led out from the flow control gates 2 and are respectively communicated with two sewage interception and dewatering tanks 7 in a synchronous sewage interception and dewatering well 17, the two sewage interception and dewatering tanks 7 and the flow control gates 2 of the two second stage water diversion flow control devices are arranged in the same synchronous sewage interception and dewatering well 17, a fecal sewage flow passage 16 is arranged below the sewage interception and dewatering tanks 7, the two flow control branch pipes 3 led out from the two flow control gates 2 of the second stage water diversion flow control device are respectively communicated with two glass fiber reinforced plastic septic tanks, the glass fiber reinforced plastic septic tanks are horizontally arranged cylindrical two-lattice septic tanks, cambered surface sealing heads are arranged at two ends of the septic tanks, a cambered surface baffle 9 is arranged in the middle of the septic tanks to divide the septic tanks into two lattice spaces, and a flow through hole 11 is arranged on the cambered surface baffle 9, and other aspects of the embodiment are designed to be identical with the embodiment 1.
As shown in FIG. 5, the two septic tanks in the embodiment 3 are integrated glass fiber reinforced plastic septic tanks or cement septic tanks, a partition board 10 is arranged in the middle of the septic tanks to divide the internal space into two cells, a flow passage hole 11 is arranged on the partition board 10, and a flow control valve 2 is arranged on a drain pipe 4 of each septic tank, otherwise the embodiment is designed as the embodiment 1.
In the embodiment 4 shown in fig. 6, only the drain pipe 4 is arranged at the water outlet end of the two septic tanks, and no flow control gate or flow control valve for preventing backflow is arranged, and the other aspects of the embodiment are designed as in the embodiment 1.
Claims (4)
1. The synchronous curing pond is characterized in that a synchronous sewage interception and dehydration flow control device is connected with a sludge treatment device formed by two groups of septic tanks which are connected in parallel, and the synchronous sewage interception and dehydration flow control device is a flow control device formed by two stages of water diversion flow control devices and two sewage interception and dehydration tanks; the sewage interception and dewatering tanks are arranged at the middle upper part of the synchronous sewage interception and dewatering well tank, the lower part of the sewage interception and dewatering tank is provided with a sewage overflow channel, the first-stage water diversion and control device is provided with two flow control gate valves, the two sewage interception and dewatering tanks are respectively communicated with the two sewage interception and dewatering tanks, the second-stage water diversion and control device is a device with at least two flow control gate valves for controlling output flow directions, a pipeline led out by each flow control gate valve is communicated with a septic tank, the water outlet end of each septic tank is provided with a straight drainage pipe, or the drainage pipe of each septic tank is provided with a backflow-preventing flow control gate valve.
2. The synchronous curing pond for synchronous sewage interception and dehydration according to claim 1, wherein the synchronous sewage interception and dehydration flow control device is a flow control device formed by two stages of water diversion flow control devices and two sewage interception and dehydration tanks, the two stages of water diversion flow control devices and the two sewage interception and dehydration tanks are arranged in one synchronous sewage interception and dehydration well, or the first stage or the second stage of water diversion flow control devices and the two sewage interception and dehydration tanks are arranged in one synchronous sewage interception and dehydration well, or the two sewage interception and dehydration tanks are arranged in the synchronous sewage interception and dehydration well, and the two stages of water diversion flow control devices are respectively water diversion flow control wells in front of and behind the synchronous sewage interception and dehydration well.
3. The synchronous curing pond for synchronous sewage interception and dehydration according to claim 1, wherein the flow control gate valve is a flow control gate or a flow control valve, the flow control gate is a diagonal pressure gate or a lifting gate, and the flow control valve is a butterfly valve or a ball valve or a stop valve; the inclined pressure gate is a gate formed by an inclined bearing plate and an inclined pressure gate plate, or the inclined pressure gate is a gate formed by an inclined pressure flow passage and an inclined pressure gate plate.
4. The synchronous curing tank for synchronous sewage interception and dehydration according to claim 1, wherein the sewage interception and dehydration tank is an upper opening tank body, a bottom plate of the tank body is a grid bottom plate or an open bottom plate, a side wall plate of the tank body is a grid plate or a pore plate or a partition plate or a well side wall, the sewage interception and dehydration tank is arranged at the middle upper part of the synchronous sewage interception and dehydration well tank, and the bottom plate of the tank body is higher than the height of a water outlet pipe orifice of the synchronous sewage interception and dehydration well tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322651487.7U CN220845865U (en) | 2023-09-28 | 2023-09-28 | Synchronous curing tank capable of synchronously intercepting sewage and dehydrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322651487.7U CN220845865U (en) | 2023-09-28 | 2023-09-28 | Synchronous curing tank capable of synchronously intercepting sewage and dehydrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220845865U true CN220845865U (en) | 2024-04-26 |
Family
ID=90778417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322651487.7U Active CN220845865U (en) | 2023-09-28 | 2023-09-28 | Synchronous curing tank capable of synchronously intercepting sewage and dehydrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220845865U (en) |
-
2023
- 2023-09-28 CN CN202322651487.7U patent/CN220845865U/en active Active
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