A receiving structure of a waste liquid receiving tank
By using a compression spring-driven sealing plate and impeller structure in the waste liquid receiving tank, the problem of frequent tank cover removal and installation is solved, achieving automatic opening and closing and uniform distribution of waste liquid, thus improving operating efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI LONGHUI ANIMAL HUSBANDRY CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-19
AI Technical Summary
Existing waste liquid receiving tanks require frequent disassembly and reassembly of the tank cover, which increases the workload of operators and makes the tank opening prone to damage, affecting its service life.
The system employs a sealing plate with a compression spring and an impeller structure to achieve automatic opening and closing of the inlet cylinder and uniform distribution of waste liquid. When waste liquid flows in, the sealing plate automatically slides down, and when it flows out, the spring resets and seals, avoiding the need for manual disassembly and assembly of the tank lid.
It enables automatic opening and closing during the waste liquid receiving process, reducing the workload of operators, improving work efficiency, and ensuring that the waste liquid is evenly distributed in the tank.
Smart Images

Figure CN224376638U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of waste liquid treatment equipment, and in particular to a receiving structure for a waste liquid receiving tank. Background Technology
[0002] In industrial production and laboratory operations, large amounts of waste liquid are generated. This waste liquid needs to be collected in receiving tanks for further treatment. Currently used waste liquid receiving tanks use removable lids to seal the tank opening. When receiving waste liquid, the lid must be removed, and after collection, it must be reinstalled. This frequent removal and installation of the lid not only increases the workload of operators and reduces work efficiency, but also easily damages the lid or tank opening during frequent disassembly, shortening the service life of the receiving tank.
[0003] A search revealed Chinese Patent Publication No. CN219116286U, which discloses a waste liquid tank device, including a tank body and an adjusting rod. The top of the tank body has a tank opening, and a filter screen is provided around the perimeter of the tank body near the inner wall of the tank body. The filter screen has a filter screen opening corresponding to the tank opening. A lowering plate is fixedly connected to the adjusting rod. The lowering plate is located below the filter screen, and when the lowering plate is below the filter screen opening, it completely blocks the filter screen opening.
[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: In the prior art, waste liquid tanks use a tank cover to seal the tank opening, which requires operators to frequently disassemble and install the tank cover during waste liquid reception. To address the problems of frequent tank cover disassembly and uneven waste liquid distribution in the prior art, this application employs a sealing plate with a compression spring to automatically open and close the inlet cylinder, and utilizes an impeller to drive the distribution cylinder to disperse the waste liquid. This achieves the technical effect of eliminating the need for manual tank cover disassembly and ensuring uniform waste liquid distribution. Utility Model Content
[0005] To simplify the opening and closing process of the waste liquid tank opening, this application provides a receiving structure for a waste liquid receiving tank.
[0006] This application provides a receiving structure for a waste liquid receiving tank, employing the following technical solution: It includes a tank body, with an inlet cylinder connected to the upper part of the tank body; an annular baffle is coaxially fixedly mounted on the upper part of the inlet cylinder; a placement frame is coaxially fixedly mounted inside the inlet cylinder, and a first sliding rod is vertically slidably connected to the placement frame, the first sliding rod being coaxial with the inlet cylinder; a sealing plate is coaxially fixedly mounted on the upper end face of the first sliding rod, and a compression spring is provided between the sealing plate and the placement frame; the diameter of the upper end face of the sealing plate is larger than the inner diameter of the annular baffle, and the diameter of the upper end face of the sealing plate is smaller than the inner diameter of the inlet cylinder. When liquid is being introduced, the sealing plate moves downwards, allowing liquid to enter the tank body. When no liquid is being introduced, the compression spring drives the sealing plate upwards, closing the tank opening.
[0007] Optionally, the placement rack is provided with a first sliding groove, and the side wall of the first sliding rod is provided with a first sliding block that is adapted to the first sliding groove.
[0008] Optionally, the placement rack has multiple liquid passage holes.
[0009] Optionally, a liquid separator is coaxially rotatably connected to the lower end face of the placement rack.
[0010] Optionally, an impeller is coaxially fixedly connected inside the separator.
[0011] Optionally, the lower part of the separator is funnel-shaped.
[0012] Optionally, the lower part of the separator is connected to an elbow, and the corresponding end of the elbow is connected to a drain pipe.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. In this utility model, when waste liquid flows in, the gravity of the waste liquid causes the sealing plate to slide downward, and the inlet cylinder opens; after the waste liquid stops flowing in, the compression spring resets and pushes the sealing plate to move upward, sealing the inlet cylinder, realizing automatic opening and closing, avoiding the problem of frequent disassembly and installation by operators when using the tank cover in the prior art, reducing the workload of operators and improving work efficiency.
[0015] 2. In this utility model, the waste liquid falls into the separatory cylinder through the liquid passage of the placement rack. The impeller drives the separatory cylinder to rotate, and the waste liquid flows evenly into the elbow along the funnel-shaped structure. Then, it enters the tank through the drain pipe. Under the rotation of the separatory cylinder, the waste liquid is evenly distributed in the tank. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the structure of the main internal components in the embodiments of this application;
[0018] Figure 3 This is a schematic diagram of the impeller structure in an embodiment of this application;
[0019] Figure 4 This is a schematic diagram of the structure of the placement rack in an embodiment of this application.
[0020] Reference numerals in the attached drawings: 1. Tank body; 2. Inlet cylinder; 3. Annular baffle; 4. Placement rack; 41. First sliding groove; 42. Liquid passage hole; 5. First sliding rod; 51. First sliding block; 6. Sealing plate; 7. Compression spring; 8. Distributor cylinder; 81. Funnel-shaped structure; 9. Elbow; 10. Drain pipe; 11. Impeller. Detailed Implementation
[0021] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0022] This application discloses a receiving structure for a waste liquid receiving tank. For example... Figure 1 As shown, the system includes a cylindrical tank 1; an inlet cylinder 2 is vertically connected to the upper center of the tank 1, and the inner diameter of the inlet cylinder 2 is adapted to the top opening of the tank 1. The two are fixedly connected by welding or a flange. An annular baffle 3 is coaxially fixed to the upper outer wall of the inlet cylinder 2. The inner diameter of the annular baffle 3 is smaller than the inner diameter of the inlet cylinder 2, forming an annular limiting structure.
[0023] Please see Figure 1 and Figure 2 A circular placement rack 4 is coaxially fixed inside the liquid inlet cylinder 2; a first sliding groove 41 is opened in the center of the placement rack 4, and the groove extends along the axial direction of the liquid inlet cylinder 2; a first sliding block 51 adapted to the first sliding groove 41 is fixedly installed on the side wall of the first sliding rod 5, and the two form a sliding fit, so that the first sliding rod 5 can slide up and down along the axial direction of the liquid inlet cylinder 2; a plurality of liquid passage holes 42 are evenly opened on the plate surface of the placement rack 4, and the liquid passage holes 42 are used for waste liquid to pass through and flow into the tank 1.
[0024] Please see Figure 2The upper end face of the first sliding rod 5 is coaxially fixedly connected to the sealing plate 6. The sealing plate 6 is a circular flat plate with a diameter of the upper end face that is larger than the inner circle diameter of the annular baffle 3 and smaller than the inner cavity diameter of the liquid inlet cylinder 2. A compression spring 7 is provided between the sealing plate 6 and the placement frame 4. The compression spring 7 is sleeved on the outside of the first sliding rod 5, and its two ends abut against the bottom surface of the sealing plate 6 and the upper surface of the placement frame 4, respectively. When no waste liquid flows in, the compression spring 7 pushes the sealing plate 6 to move upward, so that the edge of the sealing plate 6 fits against the inner circle of the annular baffle 3, thereby sealing the liquid inlet cylinder 2.
[0025] Please see Figure 2 The lower end face of the placement rack 4 is coaxially rotatably connected to a liquid separator 8; the liquid separator 8 is a hollow cylindrical tube, the upper end of which is open and corresponds to the liquid passage hole 42 of the placement rack 4, and the lower end gradually narrows into a funnel-shaped structure 81; the bottom of the funnel-shaped structure 81 is connected to an elbow 9, and the other end of the elbow 9 is horizontally connected to a drain pipe 10, which extends into the interior of the tank 1.
[0026] Please see Figure 3 An impeller 11 is coaxially fixedly connected to the middle of the inner wall of the separator 8. When the waste liquid flows into the separator 8 from the liquid passage 42, it impacts the impeller 11 and makes it rotate, which drives the separator 8 to rotate around the axis, thereby dispersing the waste liquid evenly into the tank 1.
[0027] The implementation principle of the receiving structure of the waste liquid receiving tank in this application embodiment is as follows:
[0028] When the waste liquid flows in through the top of the inlet cylinder 2, the gravity of the waste liquid acts on the sealing plate 6, overcoming the elastic force of the compression spring 7 and causing the sealing plate 6 to slide downward. At this time, the inlet cylinder 2 opens. The waste liquid falls into the distributor cylinder 8 through the liquid passage 42 of the placement rack 4, impacting the impeller 11 and driving the distributor cylinder 8 to rotate. The waste liquid flows evenly into the elbow 9 along the funnel-shaped structure 81. Under the rotation of the distributor cylinder 8, it enters the tank 1 through the drain pipe 10, making the waste liquid flowing into the tank 1 more evenly distributed.
[0029] After the waste liquid stops flowing in, the compression spring 7 returns to its original position and pushes the sealing plate 6 upward. The edge of the sealing plate 6 fits against the inner ring of the annular baffle 3, sealing the inlet cylinder 2 again. This eliminates the need for manual disassembly of the tank cover, solving the problem of frequent disassembly and assembly in the existing technology.
[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A receiving structure of a waste liquid receiving tank, comprising a tank body, characterized by: The upper part of the tank is connected to an inlet cylinder; an annular baffle is coaxially fixedly installed on the upper part of the inlet cylinder; a placement frame is coaxially fixedly installed inside the inlet cylinder, and a first sliding rod is vertically slidably connected to the placement frame, the first sliding rod being coaxial with the inlet cylinder; a sealing plate is coaxially fixedly installed on the upper end face of the first sliding rod, and a compression spring is installed between the sealing plate and the placement frame; the diameter of the upper end face of the sealing plate is larger than the inner circle diameter of the annular baffle, and the diameter of the upper end face of the sealing plate is smaller than the inner cavity diameter of the inlet cylinder.
2. The receiving structure of a waste liquid receiving tank according to claim 1, characterized in that: The placement rack is provided with a first sliding groove, and the side wall of the first sliding rod is provided with a first sliding block that is adapted to the first sliding groove.
3. The receiving structure of a waste liquid receiving tank according to claim 1, characterized in that: The placement rack has multiple liquid passage holes.
4. The receiving structure of a waste liquid receiving tank according to claim 1, characterized in that: The lower end face of the placement rack is coaxially rotatably connected to a liquid separator.
5. The receiving structure of a waste liquid receiving tank according to claim 4, characterized in that: An impeller is coaxially fixedly connected inside the separator.
6. The receiving structure of a waste liquid receiving tank according to claim 4, characterized in that: The lower part of the separator is funnel-shaped.
7. The receiving structure of a waste liquid receiving tank according to claim 4, characterized in that: The lower part of the separator is connected to an elbow, and the corresponding end of the elbow is connected to a drain pipe.
Citation Information
Patent Citations
Waste liquid tank device
CN219116286U