Side door opening and closing driving and supporting device and tank container with same
By introducing a sliding sleeve and guide components into the tank container, the problem of the side door not being able to open when the drive unit fails has been solved. This ensures that the side door can still be opened smoothly in the event of failure, facilitating maintenance and replacement, and improving operational convenience and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JINGJIANG YATAI LOGISTICS EQUIP CO LTD
- Filing Date
- 2026-01-26
- Publication Date
- 2026-04-24
AI Technical Summary
The existing side door drive mechanism of tank containers cannot be opened when it fails, making maintenance and replacement inconvenient.
The design employs a sliding sleeve and guide components to ensure that the side door can still be opened even if the drive support device fails. The guide components work in conjunction with the guide groove to achieve stable movement of the sliding sleeve, avoiding the need for additional fasteners connecting the drive rod and the sliding components.
This design allows the side door to still be opened even when the drive unit fails, facilitating maintenance and replacement of the drive support device, and improving operational convenience and stability.
Smart Images

Figure CN121913243A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tank container technology, and in particular to a side door opening and closing drive support device and a tank container having the same. Background Technology
[0002] Some tank containers are equipped with side doors, which can be opened manually or automatically. To save labor, pneumatic, electric, or hydraulic drives are generally chosen. However, these drives have the following drawbacks: if the drive fails when the side door is closed, it cannot be opened, requiring workers to forcefully pull the door or cut open the tank to replace the drive, making maintenance and operation inconvenient. Therefore, a new technical solution is urgently needed to solve at least one of these problems. Summary of the Invention
[0003] In view of the above shortcomings, one objective of this application is to provide a side door opening and closing drive support device, which uses a sliding sleeve to prevent the side door from being unable to open after the drive support device body fails. Another objective of this application is to provide a tank container that allows the side door to still be opened if the drive device fails when the side door is closed, facilitating the maintenance and replacement of the drive support device.
[0004] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted in this application is as follows: A side door opening and closing drive support device, characterized in that it includes a drive support device body with a drive rod and a sliding sleeve for preventing the drive support device body from locking. The sliding sleeve defines a sliding cavity inside. One end of the drive rod is connected to a sliding member. The sliding member is slidably disposed in the sliding cavity. A guide member is inserted into the sliding member radially. The sliding sleeve defines at least one axially extending guide groove. The guide member is slidably inserted into the guide groove.
[0005] As a preferred technical solution, the guide member passes through one end of the drive rod, and the drive rod is connected to the sliding member through the guide member.
[0006] As a preferred technical solution, the sliding member has a central insertion hole, one end of the driving rod is disposed in the insertion hole, one end of the driving rod has a first through hole that passes through it radially, the sliding member has a second through hole that passes through it radially, and the guide member is inserted into the first through hole and the second through hole.
[0007] As a preferred technical solution, the number of guide members is 2, the number of guide grooves is 2, and the guide members are respectively inserted into the sliding member.
[0008] As a preferred technical solution, the outer peripheral wall of the sliding member matches the cavity wall of the sliding cavity.
[0009] As a preferred technical solution, the sliding cavity is a circular cavity, the sliding element is a circular slider, and the sliding cavity is coaxially arranged with the drive rod.
[0010] As a preferred technical solution, the guide member is a guide bolt, and the sliding member is detachably connected to the drive rod through the guide bolt.
[0011] As a preferred technical solution, the guide groove is elongated, and there are two guide grooves arranged opposite to each other. There is one guide member, with one end of the guide member inserted into one of the guide grooves and the other end of the guide member inserted into the other guide groove.
[0012] This application also provides a tank container, characterized in that it includes a tank body and the drive support device, an opening is provided on one side of the tank body, the opening is provided with an openable side door, the side door is hinged to the tank body, one end of the sliding sleeve is connected to the side door, and one end of the drive support device body is connected to the tank body.
[0013] As a preferred technical solution, the inner wall of the tank is connected to a connector, and one end of the drive support device body is rotatably connected to the connector.
[0014] Compared with traditional technical solutions, the beneficial effects of this application are: 1) A sliding sleeve is used to prevent the side door from being unable to open if the drive mechanism fails; 2) The guide component not only serves a guiding function, but also a connecting function, eliminating the need for additional fasteners to connect the drive rod and the sliding component; 3) The installation of two guide components improves the stability of the sliding sleeve during the opening and closing of the side door by the staff after the main drive support device fails. 4) The circular cavity facilitates the coaxial arrangement of the drive support device body and the sliding cavity, eliminating tangential forces and improving the sliding stability of the sliding parts and sliding sleeve; 5) Guide bolts facilitate installation and disassembly, improving operational convenience; 6) Tank containers are equipped with drive support devices. If the drive device fails when the side door is closed, the side door can still be opened, which facilitates the maintenance and replacement of the drive support device itself. Attached Figure Description
[0015] Figure 1 This is a structural diagram of a drive support device provided in one embodiment of this application; Figure 2 This is a structural diagram of a sliding sleeve provided in one embodiment of this application; Figure 3 This is a structural diagram of the drive support device body provided in one embodiment of this application; Figure 4 This is a structural diagram of a slider provided in one embodiment of this application; Figure 5 This is a structural diagram of a side door closing drive support device provided in one embodiment of this application; Figure 6 This is a structural diagram of a tank container provided in one embodiment of this application.
[0016] exist Figures 1-6 In the middle, 1. Drive support device body; 101. Drive rod; 1011. First through hole; 2. Sliding sleeve; 201. Sliding cavity; 202. Guide groove; 3. Sliding component; 301. Insertion hole; 302. Second through hole; 4. Guide component; 5. Tank body; 6. Side door; 7. First connecting column; 8. Second connecting column. Detailed Implementation
[0017] The present application will now be further described with reference to the accompanying drawings.
[0018] In the accompanying drawings of the embodiments of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "top", "bottom", "left", "right", "front", "rear", "inner", "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 application, 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.
[0019] Please refer to Figures 1-6 This application provides an embodiment of a side door 6 opening and closing drive support device, including a drive support device body 1 with a drive rod 101 and a sliding sleeve 2. The sliding sleeve 2 defines a sliding cavity 201 inside. One end of the drive rod 101 is connected to a sliding member 3. The sliding member 3 is slidably disposed in the sliding cavity 201. A guide member 4 is inserted radially into the sliding member 3. The sliding sleeve 2 defines at least one axially extending guide groove 202. The guide member 4 is slidably inserted into the guide groove 202. The inner diameter of the sliding sleeve 2 is larger than the outer diameter of the drive support device body 1. After the side door 6 is closed, when the drive support device body 1 fails, the sliding sleeve 2 can still move because it is slidably connected to the sliding member 3, allowing the operator to easily open the side door 6. This prevents the side door 6 from being unable to be opened after the drive support device body 1 fails. The guide member 4 and the guide groove 202 ensure the stability of the sliding sleeve 2 during movement and prevent the sliding sleeve 2 and the sliding member 3 from rotating relative to each other during operation.
[0020] The drive support device body 1 can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.
[0021] like Figures 1-6 As shown, the guide member 4 passes through one end of the drive rod 101, and the drive rod 101 is connected to the slider 3 through the guide member 4. The guide member 4 not only serves as a guide but also as a connector, eliminating the need for additional fasteners to connect the drive rod 101 and the slider 3. Furthermore, the slider 3 has a central insertion hole 301, and one end of the drive rod 101 is located in the insertion hole 301. One end of the drive rod 101 has a first through hole 1011 that passes through it radially, and the slider 3 has a second through hole 302 that passes through it radially. The guide member 4 is inserted into the first through hole 1011 and the second through hole 302, thus connecting the slider 3 and the drive rod 101 together.
[0022] Alternatively, there may be two guide members 4 and two guide grooves 202. The guide members 4 may be radially inserted into the sliding member 3. In this case, one end of the drive rod 101 may be threaded, and the drive rod 101 may be threadedly connected to the sliding member 3. That is, the drive rod 101 may not be connected to the drive rod 101 through the guide member 4.
[0023] like Figures 1-6 As shown, the outer peripheral wall of the sliding member 3 matches the cavity wall of the sliding cavity 201. The shape of the sliding cavity 201 and the shape of the sliding member 3 can be set in various shapes. Specifically, in one embodiment, the sliding cavity 201 is a circular cavity, and the sliding member 3 is a circular slider. The sliding cavity 201 is coaxially arranged with the drive rod 101. This facilitates the coaxial arrangement of the drive support device body 1 and the sliding cavity 201, eliminates tangential force, and improves the sliding stability of the sliding member 3 and the sliding sleeve 2. Alternatively, in another embodiment, the sliding member 3 is a waist-shaped structure with a straight middle and semi-circular ends. The sliding cavity 201 matches the sliding member 3. The overall shape of the sliding sleeve 2 can also be set in various shapes such as cylindrical or square, but it is generally set in the common cylindrical shape.
[0024] like Figures 1-6 As shown, the guide member 4 is a guide bolt, and the sliding member 3 is detachably connected to the drive rod 101 through the guide bolt. Alternatively, the guide member 4 can also be a guide pin. The structure is simple and easy to select and assemble.
[0025] like Figures 1-6As shown, the guide groove 202 is elongated, and there are two guide grooves 202 arranged opposite to each other. There is one guide member 4, with one end inserted into one of the guide grooves 202 and the other end inserted into the other guide groove 202. The elongated guide groove 202 has semi-circular ends, and the guide member 4 is generally cylindrical. The two have a high degree of matching, and the two guide grooves 202 are set to improve sliding stability.
[0026] This application also provides a tank container, including a tank body 5 and the aforementioned drive support device. The tank body 5 has an opening on one side, and the opening is equipped with an openable side door 6. The side door 6 is hinged to the tank body 5. One end of the sliding sleeve 2 is connected to the side door 6, and one end of the drive support device body 1 is connected to the tank 5. When the drive support device body 1 is working normally, when the side door 6 is closed, the guide member 4 and the guide groove 202 abut against the end of the drive support device body 1 away from it, and the drive support device body 1 is located inside the sliding sleeve 2. When the drive support device body 1 is opened, the drive rod 101 causes the sliding sleeve 2 to extend, thereby opening the side door 6 for easy access. When used as an exhibition container, it can also display the internal structure. When the side door 6 needs to be closed, the drive rod... 101 retracts, and guide 4 slides to the other end of guide groove 202. Since guide 4 does not abut against guide groove 202, sliding sleeve 2 will slide towards drive support device due to the weight of side door 6 until guide 4 abuts against guide groove 202 near drive support device body 1. Then, the staff pushes side door 6 until it is completely closed. After side door 6 is closed, if drive support device body 1 fails, drive rod 101 cannot extend. Since sliding block and sliding sleeve 2 are slidably connected, and sliding sleeve 2 is connected to side door 6, the staff only needs to pull side door 6, and sliding sleeve 2 can still move with side door 6. Guide 4 slides relative to guide groove 202, thereby opening side door 6 at a certain angle, making it convenient for personnel to enter for maintenance and replacement of drive support device body 1.
[0027] The side door 6 can be set on the upper side, lower side, both sides in the length direction, or both sides in the width direction of the tank body 5, depending on actual needs.
[0028] like Figures 1-6 As shown, the inner wall of the tank 5 is connected to a connector. The end of the drive support device body 1 facing away from the sliding sleeve 2 is rotatably connected to the connector. The end of the sliding sleeve 2 facing away from the drive support device body 1 is rotatably connected to the inner wall of the side door 6. The connector includes a first connecting post 7 and a second connecting post 8 connected to the outer periphery of the first connecting post 7. The end of the drive support device body 1 facing away from the sliding sleeve 2 is rotatably connected to the second connecting post 8. The first connecting post 7 is connected to the inner wall of the tank 5. The structure is simple and practical.
[0029] 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 explicitly described in this specification in a similar manner.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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 subject matter.
Claims
1. A side door opening and closing drive support device, characterized in that, The device includes a drive support device body with a drive rod and a sliding sleeve. The sliding sleeve defines a sliding cavity. One end of the drive rod is connected to a sliding member, which is slidably disposed in the sliding cavity. A guide member is inserted into the sliding member radially. The sliding sleeve defines at least one axially extending guide groove, and the guide member is slidably inserted into the guide groove. The inner diameter of the sliding sleeve is larger than the outer diameter of the drive support device body.
2. The side door opening and closing drive support device according to claim 1, characterized in that, The guide member passes through one end of the drive rod, and the drive rod is connected to the sliding member through the guide member.
3. The side door opening and closing drive support device according to claim 1, characterized in that, The sliding member has a central insertion hole, one end of the driving rod is disposed in the insertion hole, one end of the driving rod has a first through hole that passes through it radially, the sliding member has a second through hole that passes through it radially, and the guide member is inserted into the first through hole and the second through hole.
4. The side door opening and closing drive support device according to claim 1, characterized in that, There are two guide members and two guide grooves, and the guide members are respectively inserted into the sliding member.
5. The side door opening and closing drive support device according to claim 1, characterized in that, The outer peripheral wall of the slider matches the cavity wall of the sliding cavity.
6. The side door opening and closing drive support device according to claim 1, characterized in that, The sliding cavity is a circular cavity, the sliding element is a circular slider, and the sliding cavity is coaxially arranged with the drive rod.
7. The side door opening and closing drive support device according to claim 2, characterized in that, The guide component is a guide bolt, and the sliding component is detachably connected to the drive rod via the guide bolt.
8. The side door opening and closing drive support device according to claim 1, characterized in that, The guide groove is elongated and there are two guide grooves arranged opposite each other. There is one guide member, with one end of the guide member inserted into one of the guide grooves and the other end of the guide member inserted into the other guide groove.
9. A tank container, characterized in that, The device includes a tank body and the drive support device as described in claims 1-9. The tank body has an opening on one side, and the opening has an openable side door. The side door is hinged to the tank body. One end of the sliding sleeve is connected to the side door, and one end of the drive support device body is connected to the tank body.
10. The tank container according to claim 9, characterized in that, The inner wall of the tank is connected to a connector, and one end of the drive support device body is rotatably connected to the connector.