Bottom valve leakage anti-corrosion device, end frame with bottom valve leakage anti-corrosion device and tank container
By installing a removable anti-corrosion device near the bottom valve of the tank container, and using a pressure plate and insert shaft structure to prevent corrosion of the connection, the corrosion problem caused by bottom valve leakage is solved, achieving both anti-corrosion effect and ease of maintenance, and extending service life.
Patent Information
- Application Number
- CN202423169085.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The connection points near the bottom valve of a tank container are prone to dripping and leakage during unloading, leading to corrosion, affecting aesthetics and structural strength, and making maintenance inconvenient.
The first and second pressure plates are spaced apart, and the support plate can be separated and set below them. Combined with the insertion shaft and the limit pin, the support plate is detachable. It uses anti-corrosion materials or coatings, and the end frame is equipped with anti-corrosion devices. The support plate can be detached to protect the connection part and prevent corrosion.
It achieves excellent corrosion resistance, has a removable tray for easy maintenance, extends service life, and reduces maintenance frequency and cost.
Smart Images

Figure CN223962594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tank container technology, and in particular to a bottom valve leakage prevention and corrosion prevention device, an end frame having the device, and a tank container. Background Technology
[0002] Tank containers are ideal transport containers for loading and transporting large quantities of liquids or gases. They are often used to load toxic, harmful, flammable, or corrosive liquids, posing a great danger.
[0003] Tank containers are equipped with a bottom discharge port, which is fitted with a bottom valve. The end frame near the bottom valve is made of carbon steel, and a notch is provided at the bottom of the end frame to avoid the valve. A connecting part is installed at the notch. Both the end frame and the connecting part are generally made of carbon steel. During use, when unloading through the bottom valve, leaks and drips are prone to occur if the interface becomes loose or when the pipe is removed after unloading. This corrodes the connecting part. While paint is typically applied to the connecting part to prevent corrosion, the paint is easily worn away, leading to rust and corrosion of the connecting part and end frame. These issues range from affecting aesthetics to compromising structural strength and shortening service life. Although the entire connecting part can be made of corrosion-resistant material, it is generally welded to the end beam and cannot be disassembled. Even with corrosion-resistant materials, wear and tear still occur, making replacement and maintenance inconvenient. Therefore, a new technical solution is urgently needed to address at least one of these technical problems. Summary of the Invention
[0004] In view of the above shortcomings, one objective of this utility model is to provide a bottom valve leakage anti-corrosion device with good anti-corrosion effect, easy replacement and maintenance, and extended service life. Another objective of this utility model is to provide an end frame with an installed device to prevent direct contact between the leaking liquid from the bottom valve and the carbon steel material of the connection, thus preventing corrosion of the connection. A further objective of this utility model is to provide a tank container equipped with an end frame, which has a long service life.
[0005] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by this utility model is as follows:
[0006] A bottom valve leakage prevention and corrosion protection device, characterized in that it comprises:
[0007] The first and second pressure plates are spaced apart;
[0008] The tray has one end detachably disposed below the first pressure plate and the other end detachably disposed below the second pressure plate.
[0009] As a preferred technical solution, the first pressure plate includes a first connecting section and a first pressing section inclinedly disposed at one end of the first connecting section. The first connecting section and the first pressing section are connected to form a bent integral structure. The second pressure plate includes a second connecting section and a second pressing section inclinedly disposed at one end of the second connecting section. The second connecting section and the second pressing section are connected to form a bent integral structure. The first connecting section and the second connecting section are used to connect the end frame.
[0010] As a preferred technical solution, the pallet includes a first side, a second side and a third side respectively inclinedly disposed at both ends of the first side, the first side, the second side and the third side are connected to form a bent integral structure, the inclination directions of the second side and the third side are opposite, the second side can be detachably disposed below the first pressing section, and the third side can be detachably disposed below the second pressing section.
[0011] As a preferred technical solution, the second side and the first pressing section are detachably connected by a plug shaft.
[0012] As a preferred technical solution, a first ear plate is provided on one side of the first pressing section, and the first ear plate is provided with a first insertion hole that passes through it in a direction perpendicular to the first ear plate. A second ear plate is provided on one side of the second section, and the second ear plate is provided with a second insertion hole that passes through it in a direction perpendicular to the second ear plate. The first insertion hole and the second insertion hole are provided correspondingly, and the insertion shaft is detachably inserted into the first insertion hole and the second insertion hole.
[0013] As a preferred technical solution, a limiting pin is provided radially at the bottom end of the insertion shaft, and the second insertion hole includes a circular hole section for the insertion shaft to pass through and a straight hole section provided on the outer periphery of the circular hole section for the limiting pin to pass through, wherein the circular hole section and the straight hole section are connected.
[0014] As a preferred technical solution, a chain is fixedly provided at the top of the insertion shaft, a connecting ring is fixedly provided on the end frame, and one end of the chain is connected to the connecting ring.
[0015] This utility model also provides an end frame, characterized in that it has the anti-corrosion device, the end frame is provided with a connecting part, the tray can be detachably mounted on the connecting part, and the shape of the tray matches the connecting part.
[0016] As a preferred technical solution, the first pressure plate is fixedly connected to the end frame through a first pad, and the second pressure plate is fixedly connected to the end frame through a second pad.
[0017] This utility model provides a tank container, characterized in that it includes a tank body and the end frame, wherein the end frame is disposed around the tank body.
[0018] Compared with traditional technical solutions, the beneficial effects of this utility model are:
[0019] 1) Excellent corrosion resistance, easy replacement and maintenance, and extended service life;
[0020] 2) The first and second pressure plates have simple structures and can press down the support plate for limiting its position. The first and second pads lift the first and second pressure plates.
[0021] 3) The support plate can avoid the foot valve, making it easy to install the foot valve. The liquid leaking from the foot valve drips onto the support plate, which protects the connection and prevents the connection from being corroded.
[0022] 4) The first and second ear plates facilitate the installation of the insert shaft. When it is necessary to prevent the tray from falling off, insert the insert shaft and rotate it. The straight hole section acts as a limit. When it is necessary to remove the tray, rotate the insert shaft so that the limit pin passes through the straight hole section.
[0023] 5) The connecting ring engages with the chain to prevent the insert shaft from falling off;
[0024] 6) The end frame has good corrosion resistance, and the pallet is detachable, making replacement and maintenance convenient. After the end frame is installed on the tank, the corrosion resistance is good, and there is no need to replace the end frame frequently, reducing the number of maintenance times and maintenance costs. Attached Figure Description
[0025] Figure 1 A structural diagram of a device provided in one embodiment of this utility model;
[0026] Figure 2 This is a structural diagram of a tray provided in one embodiment of the present invention;
[0027] Figure 3 This is a structural diagram of an end frame provided in one embodiment of the present utility model;
[0028] Figure 4 This is a structural diagram of a connecting part provided in one embodiment of the present invention.
[0029] exist Figures 1-4In the middle, 1. First pressure plate; 101. First connecting section; 102. First pressing section; 103. First ear plate; 1031. First insertion hole; 2. Second pressure plate; 201. Second connecting section; 202. Second pressing section; 3. Support plate; 301. First side; 3011. Clearance groove; 302. Second side; 303. Second ear plate; 3031. Second insertion hole; 30311. Round hole section; 30312. Straight hole section 304. Third side; 4. Insert shaft; 401. Limiting pin; 5. End frame; 501. Lower end beam; 502. Upper end beam; 503. First corner post; 504. Second corner post; 505. First corner piece; 506. Second corner piece; 507. Third corner piece; 508. Fourth corner piece; 509. Diagonal brace; 6. Chain; 7. Connecting ring; 8. Connecting part; 9. First pad; 10. Second pad; 11. Bottom valve. Detailed Implementation
[0030] The present invention will now be further described with reference to the accompanying drawings.
[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "top," "bottom," "left," "right," "front," "rear," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0032] Please refer to Figures 1-4 An embodiment of this utility model provides a bottom valve leakage anti-corrosion device, including a first pressure plate 1 and a second pressure plate 2, and a support plate 3 arranged at intervals. One end of the support plate 3 is detachably disposed below the first pressure plate 1, and the other end is detachably disposed below the second pressure plate 2. The first pressure plate 1 and the second pressure plate 2 limit the support plate 3. Liquid leaking from the bottom valve 11 drips onto the support plate 3, thus preventing corrosion of the connecting part 8 on the end frame and extending the service life of the end frame. The support plate 3 can be detached, so even if the support plate 3 is corroded, replacement and maintenance are more convenient.
[0033] like Figure 1As shown, the first pressure plate 1 includes a first connecting section 101 and a first pressure section 102 inclinedly disposed at one end of the first connecting section 101. The first connecting section 101 and the first pressure section 102 are connected to form a bent integral structure. The second pressure plate 2 includes a second connecting section 201 and a second pressure section 202 inclinedly disposed at one end of the second connecting section 201. The second connecting section 201 and the second pressure section 202 are connected to form a bent integral structure. The first connecting section 101 and the second connecting section 201 are used to connect the end frame 5. The connection between the first connecting section 101 and the second connecting section 201 and the end frame 5 is by welding or by bolts, screws, etc. The first pressure section 102 and the second pressure section 202 can press down the support plate 3.
[0034] like Figure 1 and Figure 2 As shown, the tray 3 includes a first side 301, a second side 302 and a third side 304 respectively inclinedly disposed at both ends of the first side 301. The first side 301, the second side 302 and the third side 304 are connected to form a bent integral structure. The inclination directions of the second side 302 and the third side 304 are opposite. The second side 302 can be detachably disposed below the first pressing section 102, and the third side 304 can be detachably disposed below the second pressing section 202. The second side 302 and the first pressing section 102 are detachably connected by a pin 4. The tray 3 is detachably disposed and can be pulled out from under the first pressing plate 1 and the second pressing plate 2. After inserting the tray 3 under the first pressing plate 1 and the second pressing plate 2, the pin 4 is inserted into the second side 302 and the first pressing section 102, so that the tray 3 can be fixed. The tray 3 is detachable, making replacement and maintenance more convenient. Even if the tray 3 is damaged, it can be replaced. The tray 3 is made of corrosion-resistant materials such as stainless steel or aluminum alloy, or has an anti-corrosion coating.
[0035] like Figure 1 , Figure 2 and Figure 4As shown, a first ear plate 103 is provided on one side of the first pressing section 102, and the first ear plate 103 has a first insertion hole 1031 that passes through it in a direction perpendicular to the first ear plate 103. A second ear plate 303 is provided on one side of the second section 302, and the second ear plate 303 has a second insertion hole 3031 that passes through it in a direction perpendicular to the second ear plate 303. The first insertion hole 1031 and the second insertion hole 3031 are correspondingly arranged. The insertion shaft 4 is detachably inserted through the first insertion hole 1031 and the second insertion hole 3031. The first ear plate 103 and the first pressing section 102 are connected to form an integral structure, and the second ear plate 303 is connected to the second side 302 to form an integral structure. The first ear plate 103 and the second ear plate 303 facilitate the installation of the insert shaft 4. The insert shaft 4 connects the first pressing plate 1 and the support plate 3 together. Alternatively, the second pressing plate 2 and the support plate 3 can be connected. However, in order to save costs and time, it is generally sufficient to connect the first pressing plate 1 and the support plate 3. When in use, the support plate 3 is inserted and the insert shaft 4 is inserted into the insertion hole to prevent the support plate 3 from falling out due to accidental contact or shaking.
[0036] like Figure 2 As shown, the first side 301 has a clearance groove 3011 on the side facing the bottom valve 11, which serves to reduce weight and provide clearance.
[0037] like Figure 1 and Figure 4 As shown, a limiting pin 401 is provided radially at the bottom end of the insertion shaft 4 to prevent the insertion shaft 4 from falling out of the first insertion hole 1031 and the second insertion hole 3031.
[0038] like Figure 1 and Figure 2 As shown, the second insertion hole 3031 includes a circular hole section 30311 through which the insertion shaft 4 passes, and a straight hole section 30312 disposed on the outer periphery of the circular hole section 30311 through which the limiting pin 401 passes. The circular hole section 30311 and the straight hole section 30312 are connected. When it is necessary to prevent the tray 3 from falling, the insertion shaft 4 is inserted and rotated, and the straight hole section 30312 plays a limiting role. When it is necessary to remove the tray 3, the insertion shaft 4 is rotated so that the limiting pin 401 passes through the straight hole section 30312.
[0039] like Figure 1 , Figure 3 and Figure 4 As shown, a chain 6 is fixedly installed at the top of the insertion shaft 4, and a connecting ring 7 is fixedly installed on the end frame 5. One end of the chain 6 is connected to the connecting ring 7. Without the chain 6 and the connecting ring 7, the insertion shaft 4 may roll or be lost after being pulled out, making installation and disassembly more troublesome. The chain 6 holds the insertion shaft 4, making it easier for workers to pick it up for installation or disassembly.
[0040] Please see Figures 1-4This utility model also provides an end frame with an anti-corrosion device. The end frame 5 is provided with a connecting part 8, and the support plate 3 is placed on the connecting part 8. The shape of the support plate 3 matches the connecting part 8. A first pad 9 is fixedly provided on the lower side of the first connecting section 101. The first pad 9 is welded to the end frame 5. A second pad 10 is fixedly provided on the lower side of the second connecting section 201. The second pad 10 is welded to the end frame 5. The support plate 3 can be pulled out for easy installation and disassembly. The support plate 3 prevents the liquid leaking from the bottom valve 11 from dripping onto the connecting part 8, thus protecting the connecting part 8. Even if the support plate 3 is damaged due to long-term use, it can be easily replaced to improve the protection effect.
[0041] Furthermore, the first pressure plate 1 is fixedly connected to the end frame via the first pad 9, and the second pressure plate 2 is fixedly connected to the end frame via the second pad 10. The first pad 9 and the second pad 10 make the connection between the first pressure plate 1 and the second pressure plate 2 and the end frame more secure, and also play a role in raising the first pressure plate 1 and the second pressure plate 2.
[0042] The pallet 3 can be stored in the bottom box of the tank during transportation, and then installed when unloading. Alternatively, it can be directly limited by the insert shaft 4, so that it will not fall off during transportation.
[0043] like Figure 3 and Figure 4 As shown, the end frame 5 includes a lower end beam 501 and an upper end beam 502 arranged in parallel intervals, and a first corner post 503 and a second corner post 504 respectively vertically arranged at both ends of the lower end beam 501. The lower end of the first corner post 503 is connected to one end of the lower end beam 501 through a first corner piece 505, and the lower end of the second corner post 504 is connected to the other end of the lower end beam 501 through a second corner piece 506. The upper end of the first corner post 503 is connected to one end of the upper end beam 502 through a third corner piece 507, and the upper end of the second corner post 504 is connected to one end of the upper end beam 502 through a fourth corner piece 506. 8 is connected to the other end of the upper beam 502. The first pressure plate 1 is fixedly connected to the lower beam 501 through the first pad 9. The second pressure plate 2 is fixedly connected to the lower beam 501 through the second pad 10. The first corner column 503 is equipped with diagonal braces 509 on the upper beam 502 and the lower beam 501 respectively. The second corner column 504 is equipped with diagonal braces 509 on the upper beam 502 and the lower beam 501 respectively. The lower beam 501 has a trapezoidal notch in the middle. The notch is for the bottom valve 11 to pass through. The connecting part 8 is fixedly set in the notch.
[0044] Please see Figures 1-4 This utility model also provides a tank container, including a tank body (not marked) and an end frame 5. The end frame 5 is disposed around the tank body and is equipped with an anti-corrosion device, which has a good anti-corrosion effect.
[0045] Any numerical values cited herein include all values ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values listed between the minimum and maximum values are similarly explicitly stated in this specification.
[0046] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.
[0047] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.
[0048] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.
[0049] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed utility model subject matter.
Claims
1. A bottom valve leakage prevention and corrosion protection device, characterized in that, include: The first and second pressure plates are spaced apart; The tray has one end detachably disposed below the first pressure plate and the other end detachably disposed below the second pressure plate.
2. The anti-corrosion device for bottom valve leakage according to claim 1, characterized in that, The first pressure plate includes a first connecting section and a first pressing section inclinedly disposed at one end of the first connecting section. The first connecting section and the first pressing section are connected to form a bent integral structure. The second pressure plate includes a second connecting section and a second pressing section inclinedly disposed at one end of the second connecting section. The second connecting section and the second pressing section are connected to form a bent integral structure. The first connecting section and the second connecting section are used to connect the end frame.
3. The anti-corrosion device for bottom valve leakage according to claim 2, characterized in that, The pallet includes a first side, a second side and a third side respectively inclinedly disposed at both ends of the first side, the first side, the second side and the third side are connected to form a bent integral structure, the inclination directions of the second side and the third side are opposite, the second side can be detachably disposed below the first pressing section, and the third side can be detachably disposed below the second pressing section.
4. The anti-corrosion device for bottom valve leakage according to claim 3, characterized in that, The second side and the first pressing section are detachably connected by a plug shaft.
5. The anti-corrosion device for bottom valve leakage according to claim 4, characterized in that, A first ear plate is provided on one side of the first pressing section. The first ear plate is provided with a first insertion hole that passes through it in a direction perpendicular to the first ear plate. A second ear plate is provided on one side of the second section. The second ear plate is provided with a second insertion hole that passes through it in a direction perpendicular to the second ear plate. The first insertion hole and the second insertion hole are provided correspondingly. The insertion shaft is detachably inserted through the first insertion hole and the second insertion hole.
6. The anti-corrosion device for bottom valve leakage according to claim 5, characterized in that, The bottom end of the insertion shaft is provided with a limiting pin in the radial direction. The second insertion hole includes a circular hole section for the insertion shaft to pass through and a straight hole section provided on the outer periphery of the circular hole section for the limiting pin to pass through. The circular hole section and the straight hole section are connected.
7. The anti-corrosion device for bottom valve leakage according to claim 4, characterized in that, A chain is fixedly installed at the top of the insert shaft, and a connecting ring is fixedly installed on the end frame. One end of the chain is connected to the connecting ring.
8. An end frame, characterized in that, The device has the anti-corrosion device according to any one of claims 1-7, wherein the end frame is provided with a connecting part, the tray can be detachably mounted on the connecting part, and the shape of the tray matches the connecting part.
9. The end frame according to claim 8, characterized in that, The first pressure plate is fixedly connected to the end frame via a first pad, and the second pressure plate is fixedly connected to the end frame via a second pad.
10. A tank container, characterized in that, It includes a tank body and the end frame as described in claim 8 or 9, wherein the end frame is disposed around the tank body.