A container transport lashing device for square transport containers

Abstract

The application relates to a container transport binding device for square transport containers, belonging to the technical field of radioactive article transport equipment, which is applied in a special container, a plurality of square transport containers are arranged in a single layer in the special container, the special container is an open-top fully-closed container, the device comprises a plurality of single-layer bottom supports, one bottom support is arranged for each transport container, shaft seats are arranged at the four corners of the upper end surface of each bottom support, and the shaft seats are coaxial with each other; each rotating lock shaft penetrates the shaft seats of all the bottom supports arranged along the length direction of the container, so that the rotating lock shafts are rotatably connected with each row of bottom supports; a rotating lock shaft pressing plate is fixed on the rotating lock shaft, the rotating lock shaft pressing plate is attached to or separated from the transport container base channel steel by rotating the rotating lock shaft, so that the transport container is locked or loosened. The device provided by the application has good transport interface performance under the premise of safety, is convenient and efficient to operate, and saves time and effort.

Description

Technical Field

[0001] The invention belongs to the technical field of radioactive material transport equipment, and in particular relates to a container transport tethering device for a square transport container. Background Art

[0002] The tethering of radioactive material containers is a crucial component of the nuclear fuel cycle. The risk of tether failure is significant, and therefore requires a safe and reliable tethering device for secure transportation. The tethering device must meet the transport organization's requirements for transport packaging, with an acceleration factor of "longitudinal = 5g, lateral = 2g, vertical = 2g." Summary of the Invention

[0003] In order to solve the defects of the prior art, the purpose of the present invention is to provide a container transport tie-down device for square transport containers, which has good transport interface performance while meeting safety requirements, and is easy and efficient to operate, saving time and effort.

[0004] In order to achieve the above purpose, a technical solution adopted by the present invention is:

[0005] A container transport tie-down device for square transport containers, the device being used in a dedicated container, wherein a plurality of the square transport containers are arranged flat in a single layer in the dedicated container; the dedicated container is an open-top fully enclosed container;

[0006] The device comprises a plurality of bottom brackets arranged in a single layer, each of the square transport containers corresponds to an independent bottom bracket, and axle seats are provided at the four corners of the upper end surface of each bottom bracket, with two of them being coaxial; each rotary lock shaft passes through the axle seats of all bottom brackets arranged along the length direction of the special container, thereby achieving a rotatable connection with each row of bottom brackets;

[0007] A rotary lock shaft pressure plate is fixed on the rotary lock shaft. By rotating the rotary lock shaft, the rotary lock shaft pressure plate is fitted into or separated from the square transport container base channel steel, thereby locking or releasing the square transport container.

[0008] Furthermore, in the container transport tie-down device for square transport containers as described above, there are tie-down handles at both ends of the tie-down shaft, quick-insert steel ball pins are provided on the tie-down handles, and the bottom bracket has an angle limit plate opening that matches the quick-insert steel ball pin. The quick-insert steel ball pin cooperates with the angle limit plate opening to prevent the tie-down device from failing due to the tie-down device being prevented from rotating.

[0009] Furthermore, in the container transport tie-down device for square transport containers as described above, guide plates are provided at the four corners of each bottom bracket, which serve to guide and position the square transport container when it falls into the bottom bracket from above.

[0010] Furthermore, in the container transport tie-down device for square transport containers as described above, positioning pins are installed at the four corners of the upper end surface of each bottom bracket, and the positioning pins are used in conjunction with the positioning holes of the square transport container base to restrict the horizontal displacement of the square transport container.

[0011] Furthermore, in the container transport tie-down device for a square transport container as described above, the positioning pin is connected to the bottom bracket via a threaded connection, and the guide plate is connected to the bottom bracket via a countersunk bolt.

[0012] Furthermore, in the container transport tie-down device for square transport containers as described above, rubber plates are adhered to the upper end surface of the bottom bracket and the contact surface of the square transport container base to prevent wear.

[0013] Furthermore, in the container transport tie-down device for square transport containers as described above, the contact surfaces of the rotary lock shaft pressure plate and the square transport container base are both adhered with rubber plates to prevent wear.

[0014] Furthermore, in the container transport tie-down device for square transport containers as described above, in-position marks are provided at corresponding positions of the rotary lock shaft handle and the bottom bracket, so that operators can judge the opening and closing status of the rotary lock shaft.

[0015] Furthermore, in the container transport tie-down device for a square transport container as described above, the material of the bottom bracket is Q355NE, and the materials of the positioning pin and the guide plate are 06Cr13 and 06Cr19Ni10 respectively.

[0016] Furthermore, the container transport tie-down device for a square transport container as described above is fixed to the dedicated container bottom plate by anchor bolts.

[0017] The container transport tie-down device for square transport containers according to the present invention has the following significant technical effects:

[0018] The tethering device uses two rotating lock shafts to jointly limit and fix the vertical direction of all transport containers arranged along the length of the container, and is easy and quick to operate. The tethering device is suitable for the tethering and transportation of various square radioactive material transport containers, and is suitable for road, rail and sea transportation environments throughout the year. It can meet the transportation organization's regulations on transport packaging, and the acceleration factor is "longitudinal = 5g, transverse = 2g, vertical = 2g". On the premise of meeting safety requirements, the tethering device has good transportation interface performance and is easy and efficient to operate, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a container transport tie-down device for a square transport container provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall assembly structure of the special container of the present invention;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of a single bottom bracket;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the transfer lock shaft in the locked / released state;

[0023] In the figure: 1-bottom bracket, 2-rotating lock shaft, 3-axle seat, 4-rotating lock shaft pressure plate, 5-guide plate, 6-locating pin, 7-quick-insert steel ball pin, 8-container bottom plate, 9-rubber plate. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to specific embodiments and the accompanying drawings.

[0025] Figure 1 The schematic diagram of the structure of the container transport tie-down device for square transport containers provided in an embodiment of the present invention is shown. When in use, the tie-down device is fixed to the dedicated container bottom plate 8 by anchor bolts or other alternative means. The square transport containers are laid flat in a single layer in the dedicated container and are reliably fixed by the tie-down device. Figure 2 This tethering device is used for tethering and transporting various square radioactive material transport containers. It is suitable for road, rail, and sea transportation all year round and can meet the transport organization's regulations on transport packaging. The acceleration factors are "longitudinal = 5g, transverse = 2g, vertical = 2g."

[0026] like Figure 2As shown, this special container is an open-top fully enclosed container with a completely sealed body and good waterproof sealing performance. It has door designs at both ends to facilitate staff to enter and exit the box, inspect the container, tie it down and perform other corresponding operations. The open-top design of the box facilitates the transport container to be lifted in and out of the box from the top.

[0027] like Figure 3 As shown, the tie-down device primarily comprises multiple bottom brackets 1 arranged in a single layer and multiple rotating lock shafts 2. Each transport container corresponds to an independent bottom bracket 1. Each bottom bracket 1 has an axle seat 3 mounted at each corner of its upper end, with two of these being coaxial. Each rotating lock shaft 2 penetrates the axle seat 3 of all bottom brackets 1 arranged along the length of the dedicated container, thereby achieving a rotatable connection with the bottom brackets 1. In other words, bottom brackets 1 in the same row along the length of the dedicated container are rotatably connected to two rotating lock shafts 2. In one specific embodiment, the tie-down device includes a 5×2 array of bottom brackets and four rotating lock shafts 2.

[0028] like Figure 4 As shown, the rotary lock shaft 2 has a rotary lock shaft pressure plate 4. By rotating the rotary lock shaft 2 to change the position of the rotary lock shaft pressure plate 4, the rotary lock shaft pressure plate 4 is brought into contact with or separated from the channel steel of the transport container base, thereby locking or releasing the transport container. Specifically, when the rotary lock shaft 2 is in the locked state, the rotary lock shaft pressure plate 4 is brought into contact with the channel steel of the transport container base, thereby locking the transport container; when the rotary lock shaft 2 is in the released state, the rotary lock shaft pressure plate 4 is separated from the channel steel of the transport container base, thereby releasing the transport container.

[0029] There are handles at both ends of the rotary lock shaft 2, and quick-insert steel ball pins 7 are provided on the handles. The quick-insert steel ball pins 7 are used to cooperate with the corner limit plate openings on the bottom bracket 1 to prevent the rotary lock shaft 2 from rotating and causing the bolting device to fail, thereby constraining and limiting the vertical direction of the transport container.

[0030] Each bottom bracket 1 is equipped with guide plates 5 at the four corners, and four locating pins 6 are installed at the four corners of the upper end surface of each bottom bracket 1. The guide plates 5 and locating pins 6 are designed to cooperate with the outer edge of the transport container base and the locating holes, respectively. They not only guide and position the transport container when it is dropped into the bottom bracket 1 from above, but also constrain the horizontal position of the transport container. The locating pins 6 are connected to the bottom bracket 1 through threads, and the guide plates 5 are connected to the bottom bracket 1 through countersunk bolts, facilitating maintenance and replacement.

[0031] When in use, rotate the rotary lock shaft 2 to the loose state, drop the transport container from top to bottom along the guide plate 5 onto the upper end surface of the bottom bracket 1, and constrain its horizontal movement by the cooperation of the locating pin 6 and the locating hole of the transport container base; then rotate the rotary lock shaft 2 outward by about 130° to the locked state, at this time the rotary lock shaft pressure plate 4 fits with the channel steel of the transport container base, thereby pressing and fixing the transport container; finally, insert the quick-insert steel ball pin on the handle of the rotary lock shaft 2 into the opening of the corner limit plate to fix it, so as to prevent the rotary lock shaft 2 from rotating and causing the bolting device to fail.

[0032] The transport containers arranged along the length of the container are all linked and limited in the vertical direction by two rotary lock shafts 2, which is convenient and quick to operate; at the same time, when the rotary lock shaft 2 is in the locked and released states respectively, the corresponding positions of the rotary lock shaft handle and the bottom bracket 1 are designed with obvious in-position marks, so that the operator can judge the opening and closing state of the rotary lock shaft 2.

[0033] The contact surface between the upper end of the bottom bracket 1 and the transport container base, as well as the contact surface between the rotary lock shaft pressure plate and the transport container base are both adhered with a rubber sheet 9, such as a silicone sheet, to prevent wear.

[0034] The material of the bottom bracket 1 is Q355NE, and the materials of the positioning pin 6 and the guide plate 5 are 06Cr13 and 06Cr19Ni10 respectively, so as to avoid the occurrence of rust caused by the contact between the stainless steel container and the carbon steel bracket.

[0035] The present invention provides a container transport tie-down device for square transport containers, which uses two rotating lock shafts to jointly limit and fix the vertical direction of all transport containers arranged along the length of the container, and is convenient and quick to operate. The tie-down device is suitable for the tie-down and transportation of various square radioactive material transport containers, and is suitable for road, rail and sea transportation environments throughout the year. It can meet the regulations of transport organizations on transport packaging, and the acceleration factor is "longitudinal = 5g, transverse = 2g, vertical = 2g". On the premise of meeting safety requirements, the tie-down device has good transport interface performance, and is convenient and efficient to operate, saving time and effort.

[0036] The above embodiments are merely illustrative of the present invention, and the present invention may also be implemented in other specific ways or in other specific forms without departing from the gist or essential characteristics of the present invention. Therefore, the described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is to be determined by the appended claims, and any variations equivalent to the intent and scope of the claims are intended to be within the scope of the present invention.

Claims

1. A container transport tie-down device for square transport containers, wherein the device is fixed in a dedicated container, wherein a plurality of the square transport containers are arranged flat in a single layer in the dedicated container; the dedicated container is an open-top, fully enclosed container; and characterized in that: The device comprises a plurality of bottom brackets (1) arranged in a single layer and laid flat, each of the square transport containers corresponds to an independent bottom bracket (1), and axle seats (3) are provided at the four corners of the upper end surface of each bottom bracket (1), with two of them being coaxial; each rotary lock shaft (2) passes through the axle seats (3) of all bottom brackets (1) arranged along the length direction of the special container, thereby achieving a rotatable connection with each row of bottom brackets (1); A rotary lock shaft pressure plate (4) is fixed on the rotary lock shaft (2), and the rotary lock shaft pressure plate (4) is made to fit or separate from the square transport container base channel steel by rotating the rotary lock shaft (2), thereby achieving locking or loosening of the square transport container; The two ends of the rotary lock shaft (2) are provided with rotary lock shaft handles, and the rotary lock shaft handles are provided with quick-insertion steel ball pins (7). The bottom bracket (1) is provided with an angle limit plate opening that matches the quick-insertion steel ball pins (7). The quick-insertion steel ball pins (7) and the angle limit plate openings are matched to prevent the rotary lock shaft (2) from rotating and causing the bolting device to fail. Guide plates (5) are provided at the four corners of each bottom bracket (1), which play a guiding and positioning role when the square transport container falls into the bottom bracket (1) from above; positioning pins (6) are installed at the four corners of the upper end surface of each bottom bracket (1), and the positioning pins (6) are used in conjunction with the positioning holes of the square transport container base to restrict the horizontal displacement of the square transport container.

2. The container transport tie-down device for a square transport container according to claim 1, characterized in that: The positioning pin (6) is connected to the bottom bracket (1) via a threaded connection, and the guide plate (5) is connected to the bottom bracket (1) via a countersunk bolt.

3. The container transport tie-down device for a square transport container according to claim 1, characterized in that: The upper end surface of the bottom bracket (1) and the contact surface of the square transport container base are both adhered with rubber plates (9) to prevent wear.

4. The container transport tie-down device for a square transport container according to claim 3, characterized in that: The contact surfaces of the rotary lock shaft pressure plate and the square transport container base are both adhered with rubber plates (9) to prevent wear.

5. The container transport tie-down device for a square transport container according to claim 1, characterized in that: In-position marks are provided at corresponding positions of the rotary lock shaft handle and the bottom bracket (1) so that an operator can judge the opening and closing state of the rotary lock shaft (2).

6. The container transport tie-down device for a square transport container according to claim 1, characterized in that: The material of the bottom bracket (1) is Q355NE, and the materials of the positioning pin (6) and the guide plate (5) are 06Cr13 and 06Cr19Ni10 respectively.

7. The container transport tie-down device for a square transport container according to any one of claims 2 to 6, characterized in that: The tethering device is fixed to the dedicated container bottom plate (8) via anchor bolts.

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