A special turnover box for liquid waste

By using an outlet locking device with a built-in sealing plug in the liquid waste turnover box, the problems of inconvenient dumping and exposed valves are solved, enabling safe and low-cost transportation of liquid waste.

CN224297960UActive Publication Date: 2026-05-29ZHEJIANG FEILE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FEILE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing liquid waste transfer containers have drawbacks such as inconvenience during dumping or safety hazards caused by exposed valves, and they are also costly.

Method used

Design an outlet locking device with a built-in sealing plug. The device achieves reliable sealing of the outlet pipe through the self-locking mechanism of the sealing plug and the pull rope mechanism. The sealing operation is completed inside the box to avoid valve exposure. Corrosion-resistant materials are used to reduce costs.

Benefits of technology

It enables safe and reliable disposal of liquid waste, reduces usage costs, avoids the risk of accidental triggering, and improves usage safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224297960U_ABST
    Figure CN224297960U_ABST
Patent Text Reader

Abstract

The utility model discloses a special turnover box of liquid waste, including turnover box body and export lock and seal device, and the top of turnover box body is connected with the installation of liquid inlet pipe, and the bottom of turnover box body is connected with the installation of liquid outlet pipe, and the export lock and seal device is installed in the bottom of inside of turnover box body, and the export lock and seal device includes the seal plug of vertical lifting installation, and the liquid outlet pipe can be blocked from the inside of turnover box body through the descent of seal plug, and the export lock and seal device can be self -locking to complete the blocking of liquid outlet pipe under the condition that the waste liquid is loaded in the box, and the export lock and seal device is not exposed on the outside, and opening needs to exert force, and the export lock and seal device has superior use safety, and the utility model has the use cost advantage.
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Description

Technical Field

[0001] This utility model relates to the field of waste transportation tools, and more specifically, to a special turnover box for liquid waste. Background Technology

[0002] Liquid waste generally refers to highly polluting and corrosive waste liquids generated in industrial activities. These waste liquids need to be transported to specialized environmental treatment plants for hazardous waste disposal. Due to the fluidity of liquid waste, reliable transport containers are required. Existing transport containers are mainly of two types: one type has only an inlet / outlet at the top. This type is low-cost and easy to fill, but pouring is very inconvenient, requiring the entire heavy container to be tilted. The other type has an inlet and an outlet at the bottom, with a valve installed on the outlet to control opening and closing. This type is convenient for both inlet and outlet, but ordinary valves are not suitable. Using specialized valves is costly, and the valves are exposed outside the container, posing a risk of accidental opening and a safety hazard (waste liquids are not immediately processed at treatment plants; temporary storage is required, and safety risks must be eliminated during this period). Therefore, the company proposed designing a safe and specialized transport container for this purpose. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a special turnover box for liquid waste. When the box is filled with waste liquid, the outlet locking device of this utility model can lock the outlet pipe opening. The outlet locking device is not exposed on the outside and requires force to open, which has excellent safety in use. The outlet locking device has a simple structure, which makes this utility model cost-effective.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A special turnover box for liquid waste includes a turnover box body and an outlet locking device. The top of the turnover box body is connected to and installed with a liquid inlet, and the bottom of the turnover box body is connected to and installed with a liquid outlet. The outlet locking device is installed on the bottom inner side of the turnover box body. The outlet locking device includes a sealing plug that is installed vertically and lowered. The liquid outlet can be blocked from the inside of the turnover box body by the descent of the sealing plug.

[0006] Furthermore, the outlet sealing device includes a bracket, a conduit, and a guide piston. The bracket is fixed to the bottom of the inner side of the turnover box body. The bracket is hollow inside and has several flow holes on its side, through which the inside and outside of the bracket are connected. The conduit is vertically installed on the bracket, and the guide piston is matched and installed inside the conduit. A second connecting rod is vertically connected to the lower end face of the guide piston. The second connecting rod extends to the inner side of the bracket, and the bottom end of the second connecting rod is fixedly connected to the sealing plug.

[0007] Furthermore, the sealing plug is inverted conical shape and is positioned directly above the outlet of the liquid pipe. The sealing plug can descend to contact the outlet of the liquid pipe, thereby creating a sealing effect on the outlet of the liquid pipe.

[0008] Furthermore, the downward stroke of the guide piston meets the sealing requirements of the sealing plug.

[0009] Furthermore, a first connecting rod is vertically connected to the upper end face of the guide piston. The first connecting rod extends downward after passing through the conduit. A rope loop is fixedly connected to the top of the first connecting rod. A top cover is threaded onto the inlet pipe. A rope loop is also fixedly connected to the inner side of the top cover. The outlet locking device also includes a pull rope. One end of the pull rope is connected to the rope loop of the top cover, and the other end is connected to the rope loop of the first connecting rod.

[0010] Furthermore, the length of the pull rope is sufficient to allow the top cover to be completely detached from the liquid inlet.

[0011] Furthermore, a pull ring is fixedly connected to the outer side of the top cover, and a bottom cover is threaded onto the liquid outlet.

[0012] Furthermore, a base is fixedly connected to the bottom of the turnover box body, and two symmetrically arranged fork plate slots are opened on the base.

[0013] Furthermore, the turnover box body includes a box body and a box cover, the box cover being stacked on the box body and forming a sealed connection through a flange bolt structure.

[0014] The beneficial effects of this utility model are:

[0015] The outlet locking device of this utility model is installed inside the turnover box. When the box is filled with waste liquid, it can self-lock to seal the outlet. The outlet locking device is not exposed on the outside and requires force to open, which has excellent safety. The outlet locking device of this utility model has a simple structure and significantly reduces the application cost compared to purchasing special valves on the market. Attached Figure Description

[0016] Figure 1 This is a front view of the external structure of a special turnover box for liquid waste in this embodiment;

[0017] Figure 2 This is a cross-sectional view of the internal structure of a special turnover box for liquid waste in this embodiment;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0019] Reference numerals in the attached drawings: 1. Turnover box body, 11. Liquid inlet, 12. Liquid outlet, 13. Top cover, 14. Bottom cover, 15. Pull ring, 16. Box body, 17. Box cover, 2. Outlet locking device, 21. Sealing plug, 22. Support, 221. Flow hole, 23. Guide piston, 24. First connecting rod, 25. Rope ring, 251. Second connecting rod, 26. Pull rope, 27. Base, 3. Fork plate groove, 31. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 The diagram shows a special turnover box for liquid waste, comprising a turnover box body 1 and an outlet sealing device 2. An inlet pipe 11 is connected to the top of the turnover box body 1, allowing for the filling of waste liquid. An outlet pipe 12 is connected to the bottom of the turnover box body 1, through which waste liquid can be discharged. The outlet sealing device 2 is installed on the inner bottom of the turnover box body 1 and includes a vertically lifting sealing plug 21. The descent of the sealing plug 21 seals the outlet pipe 12 from inside the turnover box body 1. In this invention, after the turnover box body 1 is filled with waste liquid, it will naturally press down on the sealing plug 21, forming a reliable seal of the outlet pipe 12. Since the sealing effect occurs inside the turnover box body 1, there is no risk of accidental triggering.

[0022] like Figure 2 and Figure 3As shown, the outlet sealing device 2 includes a bracket 22, a conduit 23, and a guide piston 24. The bracket 22 is fixed to the bottom inner side of the turnover box body 1. The bracket 22 is hollow inside, and several flow holes 221 are provided on the side of the bracket 22. The flow holes 221 connect the inside and outside of the bracket 22, allowing waste liquid to enter the interior of the bracket 22 through the flow holes 221 and flow to the outlet pipe 12. That is to say, the installation of the bracket 22 does not affect the output of waste liquid. The conduit 23 is installed vertically on the bracket 22, and the guide piston 24 is installed inside the conduit 23. The guide piston 24 moves along the height direction of the conduit 23, that is, it moves vertically up and down. A second connecting rod 26 is vertically connected to the lower end face of the guide piston 24, and the second connecting rod 26 passes through the conduit 23. The second connecting rod 26 extends to the inner side of the bracket 22 after the upper plane of the guide piston 24. The bottom end of the second connecting rod 26 is fixedly connected to the sealing plug 21. The movement of the guide piston 24 can drive the movement of the sealing plug 21. The sealing plug 21 is inverted conical and is located directly above the liquid outlet 12. Under the action of gravity, the sealing plug 21 can naturally descend. After descending, the conical surface of the sealing plug 21 can contact the liquid outlet 12 to form a sealing effect on the liquid outlet 12. Under the pressure of waste liquid water, this sealing will be very reliable. In this utility model, the descending stroke of the guide piston 24 meets the sealing requirements of the sealing plug 21. That is to say, the maximum descending distance of the guide piston 24 needs to be greater than the descending contact stroke of the sealing plug 21.

[0023] The above design only addresses the need to seal the outlet 12. However, the outlet 12 needs to be opened during liquid discharge. Therefore, if... Figure 2 and Figure 3As shown, a first connecting rod 25 is vertically connected to the upper end face of the guide piston 24. The first connecting rod 25 extends downward after passing through the guide tube 23. A rope loop 251 is fixedly connected to the top of the first connecting rod 25. The outlet locking device 2 also includes a pull rope 27. One end of the pull rope 27 is connected to the rope loop 251 of the first connecting rod 25. By pulling the pull rope 27, the sealing plug 21 can be pulled up. After the sealing plug 21 rises and disengages from the liquid outlet 12, it can create the effect of opening the liquid outlet 12. Now, the other end of the pull rope 27 also needs to be fixed, otherwise the pull rope 27 will fall into the box. The utility model itself has a top cover 13 threaded onto the inlet pipe 11. The top cover 13 serves to seal the inlet pipe 11. This utility model uses the top cover 13 to fix the other end of the pull rope 27. A rope loop 251 is also fixedly connected to the inner side of the top cover 13. The other end of the pull rope 27 is connected to the rope loop 251 of the top cover 13. A pull ring 15 is fixedly connected to the outer side of the top cover 13. The pull ring 15 facilitates hanging operations. Due to the pressure of the waste liquid, pulling up the sealing plug 21 still requires considerable force; therefore, tools such as a hand chain hoist can be used for lifting. Position 5 can be connected to a hook. When opening the sealing plug 21, first unscrew the top cover 13, then pull the top cover 13, taut the pull rope 27 to lift the sealing plug 21. In this invention, the length of the pull rope 27 should meet the requirement that the top cover 13 is completely detached from the liquid inlet 11. That is, the screwing of the top cover 13 is not affected by the pull rope 27, and the top cover 13 can be completely detached from the liquid inlet 11 without affecting the operation of the liquid tank. In this invention, the turnover box body 1 is made of corrosion-resistant stainless steel, and the various components of the outlet locking device 2 are made of... It needs to be made of corrosion-resistant materials (including main components such as pull rope 27 and sealing plug 21). The outlet locking device 2 of this utility model has a simple structure and can be manufactured and installed by the enterprise itself. Compared with purchasing special anti-corrosion valves, the manufacturing cost and usage cost are greatly reduced. The sealing plug 21 of this utility model effectively seals inside the box and is not exposed. Moreover, the opening of the sealing plug 21 requires a large external force. Therefore, compared with the traditional valve installation mode, this utility model can effectively solve the problem of accidental triggering and has better safety in use.

[0024] like Figure 2 As shown, the outlet pipe 12 is threaded with a bottom cover 14. The bottom cover 14 serves to help seal the outlet pipe 12. When it is necessary to drain the liquid, the bottom cover 14 is first unscrewed, then connected to the discharge pipe, and finally the sealing plug 21 is opened to realize the discharge of waste liquid.

[0025] like Figure 1As shown, a base 3 is fixedly connected to the bottom of the turnover box body 1. The base 3 is a rectangular frame structure. The base 3 enables the turnover box body 1 to be placed stably on the ground. Two symmetrically arranged fork plate slots 31 are opened on the base 3. The overall weight of this utility model will be very heavy after being filled with waste liquid, and a forklift is required for handling. The design of the fork plate slots 31 is to facilitate forklift transportation.

[0026] like Figure 1 As shown, the turnover box body 1 includes a box body 16 and a box cover 17. The box cover 17 is stacked on the box body 16 and forms a sealed connection through a flange bolt structure. The box body 16 and the box cover 17 are normally kept sealed and can be disassembled and separated normally during maintenance inside the box. This design is to facilitate regular cleaning of the inside of the box. Generally, the liquid level in the turnover box body 1 should not be higher than the height of the box body 16. The liquid level can be observed by installing a liquid level gauge on the outside of the box body 16.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A special turnover box for liquid waste, characterized in that, The container includes a turnover box body (1) and an outlet locking device (2). The turnover box body (1) is connected to and installed with an inlet pipe (11) at the top and an outlet pipe (12) at the bottom. The outlet locking device (2) is installed on the inner bottom of the turnover box body (1). The outlet locking device (2) includes a sealing plug (21) that is installed vertically and lowered. The outlet pipe (12) can be blocked from the inside of the turnover box body (1) by the descent of the sealing plug (21).

2. The special turnover box for liquid waste according to claim 1, characterized in that, The outlet sealing device (2) includes a bracket (22), a conduit (23), and a guide piston (24). The bracket (22) is fixed to the bottom of the inner side of the turnover box body (1). The bracket (22) is hollow inside. The side of the bracket (22) is provided with several flow holes (221) to connect the inside and outside of the bracket (22). The conduit (23) is installed vertically on the bracket (22). The guide piston (24) is installed in the conduit (23). The lower end face of the guide piston (24) is vertically connected to a second connecting rod (26). The second connecting rod (26) extends to the inside of the bracket (22). The bottom end of the second connecting rod (26) is fixedly connected to the sealing plug (21).

3. The special turnover box for liquid waste according to claim 1, characterized in that, The sealing plug (21) is inverted conical in shape and is located directly above the liquid outlet (12). The sealing plug (21) can descend and contact the liquid outlet (12) to form a sealing effect on the liquid outlet (12).

4. The special turnover box for liquid waste according to claim 2, characterized in that, The downward stroke of the guide piston (24) meets the sealing requirements of the sealing plug (21).

5. A special turnover box for liquid waste according to claim 2, characterized in that, The upper end face of the guide piston (24) is vertically connected to a first connecting rod (25). The first connecting rod (25) extends downward after passing through the conduit (23). A rope loop (251) is fixedly connected to the top of the first connecting rod (25). The inlet pipe (11) is threaded with a top cover (13). A rope loop (251) is also fixedly connected to the inner side of the top cover (13). The outlet locking device (2) also includes a pull rope (27). One end of the pull rope (27) is connected to the rope loop (251) of the top cover (13), and the other end is connected to the rope loop (251) of the first connecting rod (25).

6. The special turnover box for liquid waste according to claim 5, characterized in that, The length of the pull rope (27) meets the requirement that the top cover (13) be completely detached from the liquid inlet (11).

7. The special turnover box for liquid waste according to claim 5, characterized in that, A pull ring (15) is fixedly connected to the outside of the top cover (13), and a bottom cover (14) is threaded onto the outlet pipe (12).

8. The special turnover box for liquid waste according to claim 1, characterized in that, The bottom of the turnover box body (1) is fixedly connected to a base (3), and two symmetrically arranged fork plate grooves (31) are opened on the base (3).

9. A special turnover box for liquid waste according to claim 1, characterized in that, The turnover box body (1) includes a box body (16) and a box cover (17). The box cover (17) is stacked on the box body (16) and forms a sealed connection through a flange bolt structure.