A platform-specific sump device

Abstract

The utility model relates to the technical field of chemical equipment, and specifically discloses a platform special liquid collecting device, which comprises a liquid collecting funnel, a liquid control opening and closing assembly, a filtering assembly and a waste gas collecting structure, wherein the liquid collecting funnel is composed of a first funnel and a second funnel that are connected through insertion fitting, and a waste gas collecting cavity is formed between the first funnel and the second funnel; the liquid control opening and closing assembly automatically opens and closes the discharge port of the first funnel by using the gravity of waste liquid, and is opened to ensure the flow when discharging liquid, and is closed to seal the waste gas collecting cavity when there is no liquid; the filtering assembly is detachably arranged in the cavity to intercept solid impurities; the waste gas collecting structure actively pumps and discharges the waste gas in the cavity to an external treatment system through a vacuum pump and a pipeline. The utility model dynamically forms a local waste gas collecting space, effectively collects and treats volatile waste gas while maintaining the top opening, facilitating large-flow discharge and cleaning and maintenance, and has the advantages of high efficiency, environmental protection and easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically a platform-specific liquid collection device. Background Technology

[0002] In industrial production platforms such as chemical plants, process pipelines discharge wastewater containing solid particles, impurities, and residual chemical media after purging, cleaning, or maintenance. This wastewater needs to be effectively collected and transported to a treatment system. To address the risk of pipeline blockage caused by high flow rates and high impurity content, using open or semi-open collection funnels with filtration functions at the platform's wastewater outlet has become an effective improvement measure. This structure primarily ensures high flow capacity and ease of cleaning.

[0003] Chinese utility model patent CN212559395U discloses a chemical waste liquid collection funnel. The device constructs a completely sealed collection system by setting up a pressure stabilizing device including a pressure stabilizing frame, a sealing block and a filter plate, and a barrier device that uses a U-shaped tube structure to achieve liquid sealing; its design aims to manage the volatilization of small doses of chemical waste liquid in the laboratory through internal adsorption and controllable exhaust.

[0004] However, the liquid seal structure on which this solution relies has a liquid seal that is itself waste liquid and is still volatile. At the same time, for the open collection funnel for the platform, although the problem of filter clogging is solved, the solid residue containing volatile components intercepted by the filter screen, as well as the waste liquid temporarily stored in the funnel, pose a risk of harmful waste gas escaping from the funnel opening in an open or semi-open environment. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a platform-specific liquid collection device, which aims to solve the problem of the risk of unorganized emission of harmful waste gas from the funnel opening in the existing platform-specific open liquid collection funnel.

[0006] A platform-specific liquid collection device, installed on a platform, includes a liquid collection funnel, a liquid-controlled opening and closing assembly, a filter assembly, and a waste gas collection structure. The liquid collection funnel includes a first funnel and a second funnel. The first funnel is inserted at the top of the second funnel, and a waste gas collection chamber is formed between the first funnel and the second funnel. The second funnel is placed on a platform, and the platform has an insertion port for installing the second funnel. The liquid-controlled opening and closing component is located at the bottom outlet of the first funnel, and is used to open the outlet by the gravity of the waste liquid when there is waste liquid, and close the outlet after the waste liquid is discharged. The filter assembly is located inside the second funnel and within the exhaust gas collection chamber; The waste gas collection structure is located on the platform and is connected to the waste gas collection chamber, which is used to discharge the waste gas generated in the waste gas collection chamber to the external waste gas treatment system.

[0007] Optionally, the first funnel includes a funnel body and a support ring, wherein, The funnel body is arranged in an inverted cone shape; The support ring is located on the top periphery of the funnel body and protrudes horizontally outward in the circumferential direction. Its outer contour is adapted to the shape of the top opening of the second funnel and abuts against the top of the second funnel.

[0008] Optionally, the hydraulically controlled opening and closing assembly includes a baffle, a rotating shaft, and a torsion spring, wherein, The baffle is located at the discharge port of the first funnel and is adapted to the discharge port; The rotating shaft is located on the side wall of the baffle and is rotatably connected to the bottom of the discharge port, so that the baffle can rotate along the rotating shaft to open and close the discharge port; The torsion spring is located at the rotatable connection between the rotating shaft and the discharge port, and is used to apply a normally closed torque to the baffle, so that the baffle closes the discharge port. When the torque generated by the gravity of the waste liquid acting on the baffle is greater than the normally closed torque of the torsion spring, the baffle swings downward to open the discharge port; after the waste liquid is discharged, the torsion spring drives the baffle to reset and close the discharge port again.

[0009] Optionally, the hydraulic control opening and closing assembly further includes a sealing gasket, which is disposed on the side of the baffle facing the discharge port. When the baffle is in the closed discharge port state, it can seal the discharge port.

[0010] Optionally, the filter assembly includes a filter plate and a handle, wherein, The filter plate is detachably installed inside the second funnel and located at the bottom of the first funnel; The handle is located on the top of the filter plate and is used for lifting and disassembling.

[0011] Optionally, the filter assembly further includes a mounting ring, which is fixedly disposed on the inner wall of the second funnel and protrudes horizontally inward in the circumferential direction, and the filter plate is detachably supported on the mounting ring.

[0012] Optionally, the exhaust gas collection structure includes a vacuum pump, an inlet pipe, and an outlet pipe, wherein, The vacuum pump is located at the bottom of the platform; One end of the air inlet pipe is connected to the vacuum pump, and the other end leads to the second funnel and is located in the exhaust gas collection chamber; One end of the exhaust pipe is connected to a vacuum pump, and the other end is connected to an external waste gas treatment system, which is used to continuously extract the waste gas in the second funnel and send it to the outside for treatment.

[0013] Optionally, the exhaust gas collection structure further includes a filter head, which is located at one end of the air inlet pipe within the exhaust gas collection chamber and is used to filter wastewater.

[0014] Optionally, the liquid collecting funnel further includes a limiting ring, which is located around the second funnel and protrudes horizontally outward in the circumferential direction. A limiting placement groove is provided at the insertion port of the platform corresponding to the limiting ring to stabilize the placement of the second funnel.

[0015] Optionally, the liquid collection funnel also includes a waste pipe, which is detachably connected to the bottom of the second funnel for communication with an external waste liquid treatment system.

[0016] Compared with the prior art, the platform-specific liquid collection device provided by this utility model has the following advantages: (1) The design of the liquid control opening and closing component cleverly solves the contradiction between large-flow sewage discharge and waste gas collection in industrial platforms. When waste liquid is present, it automatically opens by liquid weight to ensure flow capacity, and automatically closes after the waste liquid is discharged. A dynamic waste gas collection chamber is formed below the filter component, so that the device can effectively collect volatile waste gas while maintaining the top open and facilitating the input of waste liquid and large particulate impurities. This fundamentally solves the technical problem of unorganized waste gas dispersion in open liquid collection devices.

[0017] (2) By setting the air inlet of the waste gas collection structure in the waste gas collection chamber formed by the liquid control opening and closing component, the source capture and directional extraction of volatile waste gas are realized. The waste gas is directly transported to the external treatment system through the vacuum pump and pipeline system, making the treatment path more direct and efficient, and without generating secondary pollution.

[0018] (3) The first funnel is combined with the filter assembly to ensure that a large flow of waste liquid containing solid particles can pass through smoothly and be effectively filtered, which significantly reduces the risk of downstream pipeline blockage. At the same time, the filter plate is easy to disassemble and clean, maintaining long-term flow efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a platform-specific liquid collection device according to this utility model; Figure 2 This is a schematic diagram of the bottom structure of a platform-specific liquid collection device according to the present invention; Figure 3 This is a schematic diagram showing the disassembled liquid collection device for a platform according to the present invention; Figure 4 for Figure 1 Sectional view along line AA; Figure 5 This is a schematic diagram of the installation of the first funnel and the liquid control opening and closing component of a platform-specific liquid collection device according to this utility model; Figure 6 for Figure 5 A magnified view is shown in section A.

[0020] In the diagram: 1. Platform; 101. Insertion port; 102. Limiting placement groove; 2. Liquid collection funnel; 201. Waste gas collection chamber; 21. First funnel; 211. Funnel body; 212. Support ring; 22. Second funnel; 23. Limiting ring; 24. Waste pipe; 3. Hydraulic control opening and closing assembly; 31. Baffle; 32. Rotating shaft; 33. Torsion spring; 34. Sealing gasket; 4. Filter assembly; 41. Filter plate; 42. Handle; 43. Mounting ring; 5. Waste gas collection structure; 51. Vacuum pump; 52. Inlet pipe; 53. Outlet pipe; 54. Filter head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] Please see Figures 1-6 This application proposes a platform-specific liquid collection device, which is installed on platform 1. The liquid collection device includes a liquid collection funnel 2, a liquid control opening and closing component 3, a filter component 4, and a waste gas collection structure 5.

[0028] like Figures 1-4 As shown, the liquid collection funnel 2 includes a first funnel 21 and a second funnel 22. The first funnel 21 is inserted into the top of the second funnel 22, and a waste gas collection chamber 201 is formed between the first funnel 21 and the second funnel 22. The second funnel 22 is disposed on the platform 1, and the platform 1 has an insertion port 101 for installing the second funnel 22. The hydraulic control opening and closing assembly 3 is disposed at the bottom outlet of the first funnel 21, and is used to open the outlet by the gravity of the waste liquid when there is waste liquid, and to close the outlet after the waste liquid is discharged. The filter assembly 4 is disposed in the second funnel 22 and is located in the waste gas collection chamber 201. The waste gas collection structure 5 is disposed on the platform 1 and communicates with the waste gas collection chamber 201, and is used to discharge the waste gas generated in the waste gas collection chamber 201 to the external waste gas treatment system.

[0029] Specifically, a waste gas collection chamber 201 is dynamically formed below the filter assembly 4 by the hydraulic control opening and closing component 3, which cleverly solves the contradiction mentioned in the background technology between the open funnel waste gas emission and the incompatibility of complex closed systems with large industrial flow conditions. When waste liquid flows in, the hydraulic control opening and closing component 3 opens to ensure the smooth discharge of large flow of waste liquid. When the waste liquid is discharged, the component automatically closes to isolate the waste gas collection chamber 201 from the lower pipeline. At this time, the waste gas collection structure 5 can efficiently extract the waste gas accumulated in the chamber, thereby achieving effective control of fugitive emissions of waste gas while maintaining the open top of the device for easy operation and maintenance. It combines the advantages of an open structure with the environmental friendliness of a closed system.

[0030] In some embodiments, such as Figures 3-6 As shown, the first funnel 21 includes a funnel body 211 and a support ring 212. The funnel body 211 is arranged in an inverted cone shape. The support ring 212 is located on the top periphery of the funnel body 211 and protrudes horizontally outward along the circumferential direction. Its outer contour is adapted to the shape of the top opening of the second funnel 22 and abuts against the top of the second funnel 22.

[0031] Specifically, this embodiment defines the specific structure of the first funnel 21; the inverted conical funnel body 211 facilitates the collection and diversion of waste liquid and solid impurities, preventing accumulation; the design of the support ring 212 allows the first funnel 21 to be stably placed on the second funnel 22, forming a reliable plug-in fit, which not only ensures the sealing of the waste gas collection chamber 201, but also facilitates the lifting of the first funnel 21 together with the hydraulic control opening and closing component 3 at its bottom for inspection or cleaning, demonstrating the beneficial effects of simple structure and easy maintenance.

[0032] In some embodiments, such as Figures 5-6 As shown, the hydraulic control opening and closing assembly 3 includes a baffle 31, a rotating shaft 32, and a torsion spring 33. The baffle 31 is located at the discharge port of the first funnel 21 and is adapted to the discharge port. The rotating shaft 32 is located on the side wall of the baffle 31 and is rotatably connected to the bottom of the discharge port, so that the baffle 31 can rotate along the rotating shaft 32 to open and close the discharge port. The torsion spring 33 is located at the rotatable connection between the rotating shaft 32 and the discharge port and is used to apply a normally closed torque to the baffle 31 so that the baffle 31 closes the discharge port. When the torque generated by the gravity of the waste liquid acting on the baffle 31 is greater than the normally closed torque of the torsion spring 33, the baffle 31 swings downward to open the discharge port. After the waste liquid is discharged, the torsion spring 33 drives the baffle 31 to reset and reclose the discharge port.

[0033] Specifically, this embodiment provides a reliable, mechanical hydraulic control opening and closing component 3. This structure uses the gravity of the waste liquid itself as a driving signal to realize the automatic opening and closing of the discharge port without external power or complex control, making it very suitable for the harsh environment of industrial platforms. The normally closed torque provided by the torsion spring 33 ensures the reliable closure of the discharge port in the absence of liquid, thereby maintaining the integrity of the waste gas collection chamber 201 and providing a foundation for efficient waste gas collection. It has the advantages of long service life, low failure rate and rapid response.

[0034] In some embodiments, such as Figure 5 As shown, the hydraulic control opening and closing assembly 3 also includes a sealing gasket 34, which is located on the side of the baffle 31 facing the discharge port. When the baffle 31 is in the closed discharge port state, it can seal the discharge port.

[0035] Specifically, this embodiment is a further optimization of the hydraulic control opening and closing component 3; adding a sealing gasket 34 can significantly improve the sealing performance of the baffle 31 in the closed state, effectively prevent exhaust gas from leaking from the outlet gap, ensure the airtightness of the exhaust gas collection chamber 201, thereby improving the suction efficiency of the exhaust gas collection structure 5 and further enhancing the beneficial effect of this utility model in controlling exhaust gas dispersion.

[0036] In some embodiments, such as Figures 3-4 As shown, the filter assembly 4 includes a filter plate 41 and a handle 42. The filter plate 41 is detachably disposed in the second funnel 22 and located at the bottom of the first funnel 21; the handle 42 is disposed on the top of the filter plate 41 for lifting and disassembling.

[0037] Specifically, this embodiment provides the basic form of the filter assembly 4; the filter plate 41 can intercept solid impurities in the waste liquid, effectively preventing downstream pipe blockage. By setting the handle 42, the filter plate 41 is made extremely convenient to disassemble and assemble. Operators can easily remove it for cleaning or replacement, which greatly facilitates maintenance work and reflects the advantages of this utility model: easy to clean and easy to maintain.

[0038] In some embodiments, such as Figure 4 As shown, the filter assembly 4 also includes a mounting ring 43, which is fixedly disposed on the inner wall of the second funnel 22 and protrudes horizontally inward in the circumferential direction. The filter plate 41 is detachably supported on the mounting ring 43.

[0039] Specifically, this embodiment provides a specific structure for stably supporting the filter assembly 4; the mounting ring 43 provides a reliable support surface for the filter plate 41, ensuring its stability during operation. This mounting method is very simple, requiring no bolts or other fasteners, further simplifying the assembly and disassembly process. In conjunction with the handle 42, it makes maintenance work more efficient.

[0040] In some embodiments, such as Figures 2-3As shown, the exhaust gas collection structure 5 includes a vacuum pump 51, an inlet pipe 52, and an outlet pipe 53. The vacuum pump 51 is located at the bottom of the platform 1. One end of the inlet pipe 52 is connected to the vacuum pump 51, and the other end leads to the second funnel 22 and is located in the exhaust gas collection chamber 201. One end of the outlet pipe 53 is connected to the vacuum pump 51, and the other end is connected to the external exhaust gas treatment system, which is used to continuously extract the exhaust gas in the second funnel 22 and send it to the outside for treatment.

[0041] Specifically, this embodiment constitutes the core of active waste gas collection; the vacuum pump 51 provides suction power, directly extracting the harmful gases volatilized in the waste gas collection chamber 201 through the air inlet pipe 52, and transporting them to a professional external waste gas treatment system for centralized purification through the air outlet pipe 53. This active, point-to-point collection method is more efficient and more thorough than the passive waiting for waste gas to accumulate and then be treated in the prior art, fundamentally solving the risk of waste gas escaping in the operating area.

[0042] In some embodiments, such as Figures 2-3 As shown, the exhaust gas collection structure 5 also includes a filter head 54, which is located at one end of the air inlet pipe 52 within the exhaust gas collection chamber 201 and is used to filter wastewater.

[0043] Specifically, this implementation plan is an important protective design for the exhaust gas collection structure 5; the filter head 54 can be made of sintered metal or corrosion-resistant filter screen, which can prevent wastewater from being sucked into the air inlet pipe 52 and vacuum pump 51 when the liquid level rises abnormally or liquid splashes, thereby protecting the vacuum pump 51 from damage, extending the service life of the entire exhaust gas collection system, and improving the reliability and durability of the device.

[0044] In some embodiments, such as Figure 4 As shown, the liquid collecting funnel 2 also includes a limiting ring 23. The limiting ring 23 is located around the second funnel 22 and protrudes horizontally outward in the circumferential direction. A limiting placement groove 102 is provided at the insertion port 101 of the platform 1 corresponding to the limiting ring 23 to stabilize the placement of the second funnel 22.

[0045] Specifically, this embodiment provides a quick installation and positioning scheme for the device on platform 1; the cooperation between the limiting ring 23 and the limiting placement groove 102 enables the second funnel 22 to be quickly and accurately positioned on platform 1 and remain stable, preventing shaking or displacement during operation, and ensuring the stability and safety of the entire liquid collection device.

[0046] In some embodiments, such as Figures 1-4 As shown, the liquid collection funnel 2 also includes a waste pipe 24, which is detachably connected to the bottom of the second funnel 22 for communication with an external waste liquid treatment system.

[0047] Specifically, this implementation plan provides a final discharge interface for the waste liquid; the waste pipe 24 is connected to the bottom of the second funnel 22 by a detachable method such as a flange or quick connector, which facilitates the smooth introduction of the filtered waste liquid into the platform's preset waste liquid collection main pipe or treatment facility, thus completing the closed-loop management of the entire process from waste liquid collection to treatment.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A platform-specific liquid collection device, installed on a platform (1), characterized in that, The liquid collection device includes a liquid collection funnel (2), a liquid-controlled opening and closing assembly (3), a filter assembly (4), and a waste gas collection structure (5), wherein, The liquid collection funnel (2) includes a first funnel (21) and a second funnel (22). The first funnel (21) is inserted into the top of the second funnel (22), and a waste gas collection chamber (201) is formed between the first funnel (21) and the second funnel (22). The second funnel (22) is located on a platform (1), and the platform (1) has an insertion port (101) for installing the second funnel (22). The liquid control opening and closing component (3) is located at the bottom outlet of the first funnel (21) and is used to open the outlet by the gravity of the waste liquid when there is waste liquid, and to close the outlet after the waste liquid is discharged. The filter assembly (4) is disposed in the second funnel (22) and located in the exhaust gas collection chamber (201); The waste gas collection structure (5) is located on the platform (1) and is connected to the waste gas collection chamber (201) to discharge the waste gas generated in the waste gas collection chamber (201) to the external waste gas treatment system.

2. The platform-specific liquid collection device according to claim 1, characterized in that, The first funnel (21) includes a funnel body (211) and a support ring (212), wherein, The funnel body (211) is arranged in an inverted cone shape; The support ring (212) is located on the top periphery of the funnel body (211) and protrudes horizontally outward along the circumferential direction. Its outer contour is adapted to the shape of the top opening of the second funnel (22) and abuts against the top of the second funnel (22).

3. The platform-specific liquid collection device according to claim 2, characterized in that, The hydraulic control opening and closing assembly (3) includes a baffle (31), a rotating shaft (32), and a torsion spring (33), wherein, The baffle (31) is located at the discharge port of the first funnel (21) and is adapted to the discharge port; The rotating shaft (32) is located on the side wall of the baffle (31) and is rotatably connected to the bottom of the discharge port, so that the baffle (31) can rotate along the rotating shaft (32) to open and close the discharge port; The torsion spring (33) is located at the rotatable connection between the rotating shaft (32) and the discharge port, and is used to apply normally closed torque to the baffle (31) so that the baffle (31) closes the discharge port; When the torque generated by the gravity of the waste liquid acting on the baffle (31) is greater than the normally closed torque of the torsion spring (33), the baffle (31) swings downward to open the discharge port; after the waste liquid is discharged, the torsion spring (33) drives the baffle (31) to reset and close the discharge port again.

4. A platform-specific liquid collection device according to claim 3, characterized in that, The hydraulic control opening and closing assembly (3) also includes a sealing gasket (34), which is located on the side of the baffle (31) facing the discharge port. When the baffle (31) is in the closed discharge port state, it can seal the discharge port.

5. A platform-specific liquid collection device according to claim 1, characterized in that, The filter assembly (4) includes a filter plate (41) and a handle (42), wherein, The filter plate (41) is detachably installed inside the second funnel (22) and located at the bottom of the first funnel (21); The handle (42) is located on the top of the filter plate (41) and is used for lifting and disassembling.

6. A platform-specific liquid collection device according to claim 5, characterized in that, The filter assembly (4) also includes a mounting ring (43), which is fixedly disposed on the inner wall of the second funnel (22) and protrudes horizontally inward along the circumference. The filter plate (41) is detachably placed on the mounting ring (43).

7. A platform-specific liquid collection device according to claim 1, characterized in that, The exhaust gas collection structure (5) includes a vacuum pump (51), an inlet pipe (52), and an outlet pipe (53), wherein, The vacuum pump (51) is located at the bottom of the platform (1); One end of the air inlet pipe (52) is connected to the vacuum pump (51), and the other end leads to the second funnel (22) and is located in the exhaust gas collection chamber (201); One end of the exhaust pipe (53) is connected to the vacuum pump (51), and the other end is connected to the external waste gas treatment system, which is used to continuously extract the waste gas in the second funnel (22) and send it to the outside for treatment.

8. A platform-specific liquid collection device according to claim 7, characterized in that, The exhaust gas collection structure (5) also includes a filter head (54), which is located at one end of the air inlet pipe (52) inside the exhaust gas collection chamber (201) and is used to filter wastewater.

9. A platform-specific liquid collection device according to any one of claims 1-8, characterized in that, The liquid collection funnel (2) also includes a limiting ring (23), which is located around the second funnel (22) and protrudes outward horizontally in the circumferential direction. A limiting placement groove (102) is opened at the insertion port (101) of the platform (1) corresponding to the limiting ring (23) to stabilize the placement of the second funnel (22).

10. A platform-specific liquid collection device according to any one of claims 1-8, characterized in that, The liquid collection funnel (2) also includes a waste pipe (24), which is detachably connected to the bottom of the second funnel (22) for communication with an external waste liquid treatment system.

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