Quick-release structure of tank top liquid collecting box of liquid tank truck
By using a quick-release plug-in structure and a reinforced liquid collection box for tank trucks, the problems of cumbersome disassembly and poor sealing of traditional liquid collection boxes are solved, enabling rapid disassembly and efficient liquid drainage, and ensuring the stable operation of tank trucks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG BEDEK FLUID TECH CO LTD
- Filing Date
- 2025-05-24
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional liquid tank truck collection boxes are cumbersome to install, have low disassembly efficiency, poor sealing, are prone to aging due to vibration, have insufficient structural strength, affecting service life, and are inconvenient to drain, increasing maintenance costs.
It adopts a quick-release plug-in structure for the rectangular base and the collection box, and uses buckles and fasteners to achieve one-handed operation. The combination of reinforcing rods and slots improves stability. The inner wall of the collection box is designed with guiding slopes and concave surfaces to accelerate drainage. The drainage tube adopts a spring pre-tightening design.
It enables quick disassembly and sealing of the liquid collection box, improves installation stability and drainage efficiency, reduces retention, and ensures efficient maintenance and reliable operation of the liquid tanker.
Smart Images

Figure CN224297936U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of liquid tanker accessories, and in particular to a quick-release structure for a liquid collection box on the top of a liquid tanker. Background Technology
[0002] When tank trucks transport liquid media (such as chemicals, oils, etc.), liquid leakage is prone to occur at the valves and pipe joints on the tank top. To prevent leaked liquid from polluting the environment or causing safety hazards, a collection box is usually installed on the tank top to collect the leaked liquid. However, traditional collection boxes are mostly installed by welding or bolting, which has the following drawbacks:
[0003] 1. The welded liquid collection box cannot be disassembled, and the whole box needs to be flushed when cleaning residual liquid or maintaining valves, which is inefficient; although the bolt-fixed structure can be disassembled, the operation is cumbersome and requires tools, which is extremely inconvenient, especially in harsh working environments (such as high altitudes or narrow spaces).
[0004] 2. During long-term use, the existing liquid collection box is prone to aging of the sealing gasket due to vibration, which increases the risk of leakage.
[0005] 3. Some collection boxes lack drainage design, which makes it easy for liquid to stagnate, requiring manual intervention to drain, thus increasing maintenance costs;
[0006] 4. The existing liquid collection box structure is not strong enough and is easily deformed by vibrations from vehicle movement or accidental collisions, affecting its service life.
[0007] Therefore, there is an urgent need for a liquid collection box structure on the top of a liquid tanker truck that is quick to assemble and disassemble, reliably sealed, and efficiently drains liquid to solve the above problems. Utility Model Content
[0008] To overcome the shortcomings of the prior art, this utility model discloses a quick-release structure for the liquid collection box on the top of a tank truck. This utility model not only realizes the quick-release sealed connection of the liquid collection box, but also provides strong assistance for the collection and treatment of leaked liquid, ensuring the efficient maintenance and reliable operation of the liquid collection box of the tank truck.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] A quick-release structure for a liquid collection box on the top of a tank truck includes a rectangular base installed on the top of the tank and surrounding the top valve, and a collection box detachably installed inside the rectangular base for collecting and treating leakage from the top valve. The collection box is a rectangular structure adapted to the rectangular base, with open ends at both the top and bottom. The lower part of the collection box is inserted into the rectangular base, with its outer wall abutting against the inner wall of the rectangular base. An openable cover is provided inside the upper open end of the collection box. A buckle is provided on the upper side of the outer wall of the collection box. A fastener is provided on the outer wall of the rectangular base, which cooperates with the buckle to achieve a seal between the lower end of the collection box and the top surface of the tank. A drain port is provided on the lower side of the inner wall of the collection box, and a through-hole corresponding to the drain port is provided on the outer wall of the rectangular base.
[0011] Furthermore, the outer diameter of the lower part of the outer wall of the liquid collection box is adapted to the inner diameter of the rectangular base, and the outer diameter of the upper part of the outer wall of the liquid collection box is adapted to the outer diameter of the rectangular base. A stepped surface is formed between the upper and lower parts of the outer wall of the liquid collection box, which surrounds the liquid collection box and matches the end face of the rectangular base.
[0012] Furthermore, the end face of the rectangular base is provided with several reinforcing rods that are perpendicular to it and evenly distributed along the circumference of the rectangular base, and the stepped surface of the outer wall of the liquid collection box is provided with several slots that correspond one-to-one with the reinforcing rods.
[0013] Furthermore, a sealing gasket is provided on the lower end face of the liquid collection box.
[0014] Furthermore, a concave surface is provided in the middle of the lower edge of the inner wall of the collection box, and the drain outlet is provided in correspondence with the concave surface. Guide slopes are formed on both sides of the concave surface for draining the leaking liquid.
[0015] Furthermore, a drain pipe is provided in the corresponding drain port and through port, with one end of the drain pipe inserted into the drain port and the other end of the drain pipe located outside the through port.
[0016] Furthermore, a baffle is provided on the drain pipe body located outside the opening, and a spring is sleeved on the drain pipe body between the baffle and the outer wall of the rectangular base. The two ends of the spring are fixedly connected to the baffle and the outer wall of the rectangular base, respectively.
[0017] Furthermore, the end of the drain pipe located inside the drain outlet is provided with an inclined opening with the inclined surface facing upward.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] The locking and releasing of the liquid collection box and the rectangular base are achieved through the cooperation of the buckle and the buckle seat. It can be operated with one hand without tools, which significantly improves the efficiency of disassembly and assembly.
[0020] The plug-in connection between the collection box and the rectangular base not only greatly facilitates the daily cleaning of the collection box and the rectangular base, but also makes the installation of the collection box more secure and stable.
[0021] The design of the reinforcing rod and slot not only greatly improves the strength of the liquid collection box, but also enables the liquid collection box to automatically align during installation, avoiding manual adjustment.
[0022] The inner wall of the collection box is designed with guiding slopes and concave surfaces, which allow leaked liquid to quickly converge to the drain outlet and reduce stagnation.
[0023] The drain pipe adopts a spring pre-tightening design, which automatically resets and inserts into the drain port after installation to prevent leakage at the connection.
[0024] This utility model achieves a quick-release sealed connection of the liquid collection box by inserting and fastening the rectangular base with the liquid collection box, and provides strong assistance for the collection and treatment of leaked liquid. It ensures the efficient maintenance and reliable operation of the liquid collection box of the tank truck and is applicable to multiple industries such as chemical and petroleum. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the base structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the liquid collection box structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the inner wall structure of the liquid collection box of this utility model;
[0029] Figure 5 This is a schematic diagram of the drain pipe structure of this utility model.
[0030] In the diagram: 1. Top cover; 2. Collection box; 3. Top valve; 4. Rectangular base; 5. Tank body; 6. Reinforcing rod; 7. Buckle; 8. Drain pipe; 9. Port; 10. Fastener; 11. Slot; 12. Stepped surface; 13. Drain port; 14. Concave surface; 15. Guide slope; 16. Sealing gasket; 17. Inclined opening; 18. Spring; 19. Baffle. Detailed Implementation
[0031] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.
[0032] Please refer to the instruction manual appendix. Figure 1-5 This utility model provides a technical solution:
[0033] Example 1: A quick-release structure for a liquid collection box on the top of a tanker truck includes a rectangular base 4 installed on the top of the tank body 5 and surrounding the top valve 3, and a collection box 2 detachably installed inside the rectangular base 4 for collecting and treating leakage from the top valve 3. Specifically, the rectangular base 4 is fixed to the top of the tank body 5 by welding. The collection box 2 is a rectangular structure adapted to the rectangular base 4, with both its upper and lower ends open. The lower part of the collection box 2 is inserted into the rectangular base 4, and its outer wall abuts against the inner wall of the rectangular base 4. The upper opening of the collection box 2 is provided with an openable cover 1. The lower end face of the collection box 2 is provided with a sealing gasket 16. The upper side of the outer wall of the collection box 2 is provided with a buckle 10. The outer wall of the rectangular base 4 is provided with a buckle 7 that cooperates with the buckle 10 and is used to achieve a seal between the lower end of the collection box 2 and the top surface of the tank body 5. The lower side of the inner wall of the collection box 2 is provided with a drain port 13. The outer wall of the rectangular base 4 is provided with a through-hole 9 corresponding to the drain port 13.
[0034] When installing the liquid collection box 2, first insert the lower part of the liquid collection box 2 into the rectangular base 4, with the outer wall of the liquid collection box 2 abutting against the inner wall of the rectangular base 4. Then, the liquid collection box 2 is pressed down and limited by the cooperation of the buckle 10 and the buckle seat 7. The buckle 10 is used to make the lower end face of the liquid collection box 2 abut against the upper surface of the tank body 5 and is sealed by the sealing gasket 16. The liquid leaking through the top valve 3 of the tank is collected and discharged through the drain port 13 and the through port 9. When it is necessary to clean and maintain the liquid collection box 2 and the rectangular base 4, simply open the buckle 10 to easily and quickly disassemble the liquid collection box 2. The rectangular base 4 has a low wall height, which greatly facilitates the subsequent flushing of the rectangular base 4.
[0035] In the second embodiment, during the installation of the liquid collection box 2, in order to ensure the firmness and stability of the liquid collection box 2, the outer diameter of the lower part of the outer wall of the liquid collection box 2 is adapted to the inner diameter of the rectangular base 4, and the outer diameter of the upper part of the outer wall of the liquid collection box 2 is adapted to the outer diameter of the rectangular base 4. A stepped surface 12 is formed between the upper and lower parts of the outer wall of the liquid collection box 2, which is arranged around the liquid collection box 2 and matches the end face of the rectangular base 4. Correspondingly, the buckle 10 is located on the upper side of the stepped surface 12 of the outer wall of the liquid collection box 2. By using the step surface 12 to cooperate with the upper end face of the rectangular base 4, the connection between the liquid collection box 2 and the rectangular base 4 can be made tighter and more stable. In order to improve the strength of the liquid collection box 2, the end face of the rectangular base 4 is provided with several reinforcing rods 6 that are perpendicular to it and evenly distributed along the circumference of the rectangular base 4. The stepped surface 12 of the outer wall of the liquid collection box 2 is provided with several slots 11 that correspond one-to-one with the several reinforcing rods 6.
[0036] In Example 3, in order to facilitate the discharge and collection of the liquid collected in the collection box 2, a concave surface 14 is provided in the middle of the lower edge of the inner wall of the collection box 2, and the drain port 13 is provided correspondingly to the concave surface 14. The two sides of the concave surface 14 form guiding slopes 15 for draining the leaking liquid. The guiding slopes 15 enable the liquid to flow efficiently to the drain port 13 for discharge and collection.
[0037] To facilitate the collection of discharged liquid, a drain pipe 8 is provided in the corresponding drain port 13 and through port 9. One end of the drain pipe 8 is inserted into the drain port 13, and the other end is located outside the through port 9. Specifically, a baffle 19 is provided on the drain pipe 8 outside the through port 9. A spring 18 is fitted on the drain pipe 8 between the baffle 19 and the outer wall of the rectangular base 4. The two ends of the spring 18 are fixedly connected to the baffle 19 and the outer wall of the rectangular base 4, respectively. The elastic force of the spring 18 allows the inner end of the drain pipe 8 to be effectively inserted into the drain port 13. When disassembling and assembling the collection box 2, simply pull the drain pipe 8 outward so that its end is in contact with the drain. After the outlet 13 is detached, the assembly and disassembly of the liquid collection box 2 can be completed. During the installation of the liquid collection box 2, in order to push the drain pipe 8 to automatically retract into the opening 9 when the liquid collection box 2 is pressed down, the end of the drain pipe 8 located in the drain outlet 13 is provided with an inclined opening 17 with the inclined surface facing upward. After the lower end face of the liquid collection box 2 comes into contact with the inclined surface on the inclined opening 17, as the liquid collection box 2 continues to descend, the downward pressure can be converted into the lateral force of the drain pipe 8 through the inclined surface on the upper part of the inclined opening 17, causing it to retract into the opening 9. When the lower end face of the liquid collection box 2 comes into contact with the upper surface of the tank body 5, the drain pipe 8 is reinserted into the drain outlet 13 by the elastic force of the spring 18.
[0038] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.
Claims
1. A quick-release structure for a liquid collection box on the top of a liquid tanker truck, characterized in that: The system includes a rectangular base (4) installed on the top of the tank (5) and surrounding the top valve (3), and a collection box (2) detachably installed in the rectangular base (4) for collecting and treating leakage from the top valve (3). The collection box (2) is a rectangular structure adapted to the rectangular base (4) and has open ends. The lower part of the collection box (2) is inserted into the rectangular base (4) and its outer wall abuts against the inner wall of the rectangular base (4). The upper opening of the collection box (2) is provided with an openable cover (1). The upper side of the outer wall of the collection box (2) is provided with a buckle (10). The outer wall of the rectangular base (4) is provided with a buckle (7) that cooperates with the buckle (10) and is used to seal the lower end of the collection box (2) against the top surface of the tank (5). The lower side of the inner wall of the collection box (2) is provided with a drain port (13). The outer wall of the rectangular base (4) is provided with a through-hole (9) corresponding to the drain port (13).
2. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 1, characterized in that: The outer diameter of the lower part of the outer wall of the liquid collection box (2) is adapted to the inner diameter of the rectangular base (4), and the outer diameter of the upper part of the outer wall of the liquid collection box (2) is adapted to the outer diameter of the rectangular base (4). A stepped surface (12) is formed between the upper and lower parts of the outer wall of the liquid collection box (2) and is arranged around the liquid collection box (2) and matches the end face of the rectangular base (4).
3. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 2, characterized in that: The rectangular base (4) has several reinforcing rods (6) that are perpendicular to it and evenly distributed around the circumference of the rectangular base (4). The stepped surface (12) of the outer wall of the liquid collection box (2) has several slots (11) that correspond to and fit the reinforcing rods (6) one by one.
4. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 1, characterized in that: The lower end face of the liquid collection box (2) is provided with a sealing gasket (16).
5. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 1, characterized in that: The inner wall of the collection box (2) has a concave surface (14) at the middle of the lower edge, and the drain outlet (13) is provided in correspondence with the concave surface (14). The two sides of the concave surface (14) form guiding slopes (15) for draining the leaking liquid.
6. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 5, characterized in that: The corresponding drain port (13) and the through port (9) are provided with drain pipes (8). One end of the drain pipe (8) is inserted into the drain port (13), and the other end of the drain pipe (8) is located outside the through port (9).
7. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 6, characterized in that: A baffle (19) is provided on the body of the drain pipe (8) located outside the opening (9). A spring (18) is sleeved on the body of the drain pipe (8) between the baffle (19) and the outer wall of the rectangular base (4). The two ends of the spring (18) are fixedly connected to the baffle (19) and the outer wall of the rectangular base (4) respectively.
8. The quick-release structure for the liquid collection box on the top of a liquid tanker truck according to claim 7, characterized in that: The end of the drain pipe (8) located inside the drain outlet (13) is provided with an inclined opening (17) with the inclined surface facing upward.