Slot opening and closing device

Abstract

The utility model relates to the technical field of container slots, and discloses a slot opening and closing device which comprises a slot hole formed in a frame, a first supporting plate and a second supporting plate are arranged above the slot hole, and a locking rod is arranged on the first supporting plate and the second supporting plate in a penetrating mode. The lock rod comprises a positioning part and a rod part connected with the positioning part, a lock hole allowing the positioning part to penetrate through is formed in the first supporting plate, a through hole allowing the rod part to penetrate through is formed in the second supporting plate, the first supporting plate and the second supporting plate are used for supporting the positioning part, and after the positioning part penetrates through the lock hole, the rod part is embedded into the slot hole in the axial direction; according to the locking rod, the positioning part can abut against the first supporting plate so that the rod part can be suspended above the inserting groove hole, the positioning part can penetrate through the locking hole to abut against the second supporting plate so that the rod part can be embedded into the inserting groove hole, the inserting groove hole can be closed, the device is simple in structure and convenient to operate, the safety that a forklift cannot be inserted and lifted at will is guaranteed, and the practicability is high. And the requirements of offshore container standards are met.

Description

Technical Field

[0001] This utility model relates to the field of container slot technology, specifically to a slot opening and closing device. Background Technology

[0002] Container slots are structures on shipping containers designed to facilitate loading and unloading operations with forklifts. They are also commonly referred to as container forklift slots and are typically long, narrow slots located on the lower side of the container. Tank containers are often placed on specialized frames or chassis during transport, forming a container-like assembly to facilitate loading, unloading, and transport using container shipping equipment.

[0003] Among them, the forklift slots on the tank container for lifting by forklifts must be closed, and the device for closing the forklift slots must be a permanent part of the frame or a permanent part on the frame. After the tank container is filled, the forklift openings of the tank container must be closed. However, most tank containers on the market do not have corresponding forklift slot opening and closing devices. Therefore, we propose a slot opening and closing device for container forklift slots. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a slot opening and closing device, which opens or closes the slot hole by raising and lowering the locking rod, ensuring the safety of the forklift from arbitrarily inserting the slot.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a slot opening and closing device, including a slot hole opened on a frame, a first support plate and a second support plate provided above the slot hole, and a locking rod passing through the first support plate and the second support plate; the locking rod includes a positioning part and a rod part connected to the positioning part, a locking hole for the positioning part to pass through is opened on the first support plate, and a through hole for the rod part to pass through is opened on the second support plate, the first support plate and the second support plate are used to support the positioning part, and after the positioning part passes through the locking hole, the rod part is axially embedded in the slot hole.

[0006] Optionally, the frame includes a square tube at its bottom, the slot hole is formed on the square tube, and the first support plate and the second support plate are fixedly installed on the square tube by a connecting plate.

[0007] Optionally, the first support plate is located above the second support plate, the two are parallel to each other, and the rod is coaxial with the lock hole.

[0008] Optionally, two connecting plates are provided, with the first support plate and the second support plate fixedly installed between the two connecting plates, and the connecting plates are fixedly connected to the square tube.

[0009] Optionally, the positioning part adopts a rectangular plate structure, the rod part adopts a cylindrical structure, the lock hole adopts a rectangular hole, and the through hole adopts a round hole.

[0010] Optionally, the length and width of the positioning part are smaller than the length and width of the keyhole, respectively, and the length of the positioning part is greater than the width of the keyhole.

[0011] Optionally, the width of the positioning part is equal to the outer diameter of the rod, the inner diameter of the through hole is greater than the outer diameter of the rod, and the inner diameter of the through hole is less than the length of the positioning part.

[0012] Optionally, when the positioning part presses against the first support plate, the end of the rod is located above the slot hole; when the positioning part presses against the second support plate, the end of the rod is embedded in the bottom surface of the slot hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) The locking rod in this utility model can press the positioning part against the first support plate so that the rod part is suspended above the slot hole, and can also press the positioning part through the locking hole against the second support plate so that the rod part is embedded in the slot hole, thereby sealing the slot hole. The device has a simple structure and is easy to operate, ensuring the safety that the forklift cannot be lifted at will, and meeting the requirements of the near-shore container standard.

[0015] (2) In this utility model, the first support plate and the second support plate are fixedly installed on the square tube of the frame through the connecting plate, so that the slot opening and closing device and the frame become one.

[0016] (3) In this utility model, the first support plate and the second support plate are respectively provided with holes corresponding to the positioning part and the rod part, which not only achieves the purpose of the lock rod moving freely as part of the frame, but also avoids the risk of the lock rod detaching from the frame, falling off and being lost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the slot opening and closing device in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the slot in the open state in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the slot in the closed state in an embodiment of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the slot opening and closing device in an embodiment of this utility model;

[0021] Figure 5This is a schematic diagram showing the positions of the locking rod and the first and second support plates when the slot is opened in this embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram showing the position of the locking rod and the first and second support plates when the slot is closed in this embodiment of the present invention;

[0023] Among them, 1. Frame; 101. Square tube; 2. Slot hole; 3. Locking rod; 301. Positioning part; 302. Rod part; 4. First support plate; 401. Locking hole; 5. Second support plate; 501. Through hole; 6. Connecting plate. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention. Example 1

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a slot opening and closing device includes a slot hole 2, a locking rod 3, a first support plate 4, a second support plate 5, and a connecting plate 6. The slot hole 2 is a container forklift slot, which is opened on the frame 1 where the tank container is located. The frame 1 includes a square tube 101 located at its bottom. The slot hole 2 is opened on the side of the square tube 101. The first support plate 4 and the second support plate 5 are fixedly installed on the square tube 101 through the connecting plate 6. That is, the slot opening and closing device is installed on the frame 1. The square tube 101 is provided with a clearance hole that communicates with the slot hole 2 so that the locking rod 3 can be inserted into the slot hole 2 through the clearance hole to close the slot.

[0026] The locking rod 3 passes through the first support plate 4 and the second support plate 5. The locking rod 3 includes a positioning part 301 and a rod part 302. The positioning part 301 is fixedly connected to the upper end of the rod part 302 by welding, and the size of the positioning part 301 is larger than that of the rod part 302. The first support plate 4 and the second support plate 5 can both support the positioning part 301. The first support plate 4 has a locking hole 401 for the positioning part 301 to pass through, and the second support plate 5 has a through hole 501 for the rod part 302 to pass through.

[0027] As described above, the first support plate 4 is located above the second support plate 5, and the two are parallel to each other. After the positioning part 301 passes through the lock hole 401, the rod part 302 is inserted into the slot hole 2 along the axial direction to close the slot. Furthermore, the rod part 302 is coaxial with the lock hole 401, so that the rod part 302 can be better moved axially through the first support plate 4 and the second support plate 5.

[0028] Specifically, when the positioning part 301 presses against the first support plate 4, the end of the rod part 302 is located above the slot hole 2 (e.g., Figure 2 and Figure 5 As shown); when the positioning part 301 presses against the second support plate 5, the end of the rod part 302 is embedded in the bottom surface of the slot hole 2 (as shown). Figure 3 and Figure 6 (As shown).

[0029] The positioning part 301 adopts a rectangular plate structure, the rod part 302 adopts a cylindrical structure, the corresponding lock hole 401 adopts a rectangular hole, and the through hole 501 adopts a round hole. The use of rectangular and circular structures here not only facilitates the production of device components and reduces manufacturing costs, but also facilitates the rapid switching of the opening and closing state of the slot hole 2.

[0030] In order to enable the positioning part 301 to both press against the first support plate 4 and pass through the lock hole 401 to press against the second support plate 5, the length of the positioning part 301 is less than the length of the lock hole 401, the width of the positioning part 301 is less than the width of the lock hole 401, and the length of the positioning part 301 is greater than the width of the lock hole 401.

[0031] Since the length of the positioning part 301 is greater than the width of the lock hole 401, when the positioning part 301 presses against the first support plate 4, the long side of the positioning part 301 and the lock hole 401 are perpendicular to each other. When the locking rod 3 is rotated 90 degrees, the long side of the positioning part 301 and the lock hole 401 are parallel to each other. At this time, since the length and width of the positioning part 301 are smaller than the length and width of the lock hole 401, that is, the cross-sectional outline of the positioning part 301 is smaller than the internal size of the lock hole 401, the positioning part 301 passes through the lock hole 401.

[0032] To facilitate processing, the width of the positioning part 301 is equal to the outer diameter of the rod part 302. At the same time, in order to enable the second support plate 5 to support the positioning part 301, the inner diameter of the through hole 501 is larger than the outer diameter of the rod part 302, and the inner diameter of the through hole 501 is smaller than the length of the positioning part 301.

[0033] Since the inner diameter of the through hole 501 is larger than the outer diameter of the rod 302, when the positioning part 301 passes through the lock hole 401, the locking rod 3 will descend vertically under its own gravity until the bottom surface of the positioning part 301 contacts the top surface of the second support plate 5. The outer contour dimension of the positioning part 301 is larger than that of the through hole 501, so the second support plate 5 can control the depth of the rod 302 by supporting and limiting the positioning part 301.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, the first support plate 4 and the second support plate 5 are fixedly installed on the square tube 101 via a connecting plate 6. There are two connecting plates 6, with the first support plate 4 and the second support plate 5 fixedly installed between the two connecting plates 6, and the connecting plates 6 are fixedly connected to the square tube 101.

[0035] Specifically, the two connecting plates 6 are parallel to each other and perpendicular to the first support plate 4 and the second support plate 5. The first support plate 4 and the second support plate 5 are located between the two connecting plates 6. The locking rod 3 passes through the locking hole 401 and the through hole 501 on the first support plate 4 and the second support plate 5. Thus, the slot opening and closing device is integrated with the frame 1. Furthermore, by using different openings on the upper and lower support plates, the slot opening and closing device can move freely as part of the frame 1, but it cannot detach from the frame 1, fall off, or be lost.

[0036] Working principle:

[0037] The positioning part 301 at the top of the locking rod 3 is made of a rectangular plate, and the rod part 302 at the bottom is made of a cylindrical steel structure and is fixedly connected to the positioning part 301 by welding; the locking rod 3 is placed between the upper and lower support plates, and a round hole is opened on the second support plate 5 to facilitate the up and down movement of the rod part 302, while preventing the positioning part 301 from falling further; a rectangular hole is opened on the first support plate 4 to facilitate the up and down movement of the positioning part 301;

[0038] After the positioning part 301 is lifted and rotated 90 degrees, it can be placed on the first support plate 4. At this time, the rod part 302 is lifted out of the slot hole 2, which is convenient for the forklift to operate. After the forklift operation is completed, the positioning part 301 is rotated 90 degrees again, and the positioning part 301 passes through the locking hole 401 and falls on the second support plate 5. The rod part 302 of the locking rod 3 is embedded in the slot hole 2, so that the slot hole 2 is closed and cannot be used.

[0039] The locking rod 3 is inserted through two support plates, which are fixedly installed on the frame 1 by connecting plate 6. Through the calculation of the distance between the two support plates and the length of the locking rod 3, the locking rod 3 can move freely up and down between the two support plates, but cannot fall off, making it a permanent component of the frame 1. Example 2

[0040] Based on Embodiment 1, this utility model also proposes specific dimensions for the slot opening and closing device, including but not limited to the following embodiments.

[0041] Regarding the dimensions of the locking rod 3: the length of the positioning part 301 is 20mm, the width is 10mm, and the height is 30mm; the length of the rod part 302 is 180mm, and the outer diameter is 10mm.

[0042] Regarding the dimensions of the first support plate 4: its length is 48mm and its width is 34mm. The lock hole 401 is located at the center of the first support plate 4, and the length of the lock hole 401 is 22mm and its width is 12mm.

[0043] Regarding the dimensions of the second support plate 5: its length is 48mm, its width is 34mm, the through hole 501 is located at the center of the second support plate 5, and the inner diameter of the through hole 501 is 12mm.

[0044] The first support plate 4 and the second support plate 5 have the same thickness and the distance between them is 95mm. The bottom surface of the second support plate 5 is 30mm away from the top surface of the square tube 101.

[0045] In summary, the slot opening and closing device proposed in this utility model is applicable to the opening and closing of container forklift slots. The slot hole 2 can be opened or closed by the up-and-down movement of the locking rod 3. Simultaneously, the device is mounted on the frame 1 via the connecting plate 6, making it a permanent component of the frame 1. This device has a simple structure, is easy to operate, ensures safety by preventing forklifts from arbitrarily inserting or lifting the forklift, and meets the requirements of near-shore container standards.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A slot opening and closing device, comprising a slot hole (2) opened on a frame (1), characterized in that: A first support plate (4) and a second support plate (5) are provided above the slot hole (2), and a locking rod (3) is provided on the first support plate (4) and the second support plate (5). The locking rod (3) includes a positioning part (301) and a rod part (302) connected to the positioning part (301). The first support plate (4) has a locking hole (401) for the positioning part (301) to pass through, and the second support plate (5) has a through hole (501) for the rod part (302) to pass through. The first support plate (4) and the second support plate (5) are used to support the positioning part (301). After the positioning part (301) passes through the locking hole (401), the rod part (302) is axially embedded in the slot hole (2).

2. The slot opening and closing device according to claim 1, characterized in that: The frame (1) includes a square tube (101) located at its bottom, the slot hole (2) is opened on the square tube (101), and the first support plate (4) and the second support plate (5) are fixedly installed on the square tube (101) by a connecting plate (6).

3. The slot opening and closing device according to claim 2, characterized in that: The first support plate (4) is located above the second support plate (5), and the two are parallel to each other, and the rod (302) is coaxial with the lock hole (401).

4. The slot opening and closing device according to claim 3, characterized in that: The connecting plate (6) is provided in two parts. The first support plate (4) and the second support plate (5) are fixedly installed between the two connecting plates (6), and the connecting plate (6) is fixedly connected to the square tube (101).

5. The slot opening and closing device according to claim 1, characterized in that: The positioning part (301) adopts a rectangular plate structure, the rod part (302) adopts a cylindrical structure, the lock hole (401) adopts a rectangular hole, and the through hole (501) adopts a round hole.

6. The slot opening and closing device according to claim 5, characterized in that: The length and width of the positioning part (301) are smaller than the length and width of the lock hole (401), respectively, and the length of the positioning part (301) is greater than the width of the lock hole (401).

7. The slot opening and closing device according to claim 6, characterized in that: The width of the positioning part (301) is equal to the outer diameter of the rod part (302), the inner diameter of the through hole (501) is greater than the outer diameter of the rod part (302), and the inner diameter of the through hole (501) is less than the length of the positioning part (301).

8. The slot opening and closing device according to any one of claims 1 to 7, characterized in that: When the positioning part (301) presses against the first support plate (4), the end of the rod part (302) is located above the slot hole (2); when the positioning part (301) presses against the second support plate (5), the end of the rod part (302) is embedded in the bottom surface of the slot hole (2).

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