Transportation container hanging basket lifting appliance

Abstract

The utility model discloses a transportation container hanging basket lifting appliance which is characterized in that an operating handle is connected with an operating rod, an inner operating rod and a gripping head to drive a gripping claw to be opened or closed, remote control is carried out through the operating handle, and meanwhile, the operating handle is axially limited through a safety pin, so that the operating handle is not easy to unhook; the loading and unloading operation platform is located several meters below the spent fuel pool, and when the lifting appliance is used for operation, an operator only needs to stand on a steel platform above the spent fuel pool to remotely operate the hanging basket lifting appliance, and the function of grabbing the hanging basket assembly can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of special tools for nuclear power plant transportation, and particularly relates to a lifting tool for a transportation container hanging basket, and specifically to an assembled detachable, remotely passive-operated, special vertical hanging basket lifting tool. Background Art

[0002] During the in-service operation of a nuclear power plant, the spent fuel assemblies unloaded from the reactor need to be temporarily stored in the spent fuel pool of the fuel building first, and then subsequent transportation operations are carried out after cooling. The transportation container is a special container for transporting fuel rods in a nuclear power plant, and its structure includes components such as a container body, a hanging basket, a container cover, and shock absorbers. The hanging basket lifting tool is a special tool for grasping the hanging basket of the transportation container. When in use, it is suspended on the hook of the gantry crane and is used to transfer the hanging basket assembly between the transportation container and the operation platform in the spent fuel pool in the fuel building, and is also used for the loading and unloading processes of the fuel rods in the transportation container.

[0003] The existing hanging basket lifting tool has a fixed size and cannot be applied to hoisting operations at different depths. The connection of the existing hanging basket lifting tool is not firm, is prone to unhooking, and cannot be accurately docked with the hanging basket at the same time. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a lifting tool for a transportation container hanging basket, which can realize the transfer of the hanging basket assembly between various operation platforms in the fuel building.

[0005] In order to solve the technical problems, the technical solution of the utility model is: a lifting tool for a transportation container hanging basket, which includes an upper operation end, an intermediate section, and a lower gripping end;

[0006] The upper operation end includes an operation handle, a safety pin, and a sling assembly; there are multiple intermediate sections, and the multiple intermediate sections are axially connected in sequence. The intermediate section includes an operation rod and an outer sleeve; the lower gripping end includes a balance spring, an inner operation rod, a gripper head, a gripper claw assembly, a guiding and positioning pin, a guiding pin support, and a gripper claw sleeve assembly;

[0007] The operating handle is sleeved inside the eyebolt assembly, and the operating handle is axially limited at the top of the eyebolt assembly through a safety pin. The bottom of the eyebolt assembly is connected to the top of the outer sleeve. The bottom of the operating handle is connected to the topmost operating rod. The operating rod is sleeved inside the outer sleeve. The lower end of the lowermost operating rod passes through a balance spring and is connected to the inner operating rod. The top of the balance spring is fixedly connected to the lowermost operating rod. The bottom of the balance spring is limited at the bottom of the lowermost outer sleeve. The bottom of the outer sleeve is connected to the claw sleeve assembly. The inner operating rod is connected to a claw head and the claw head is located inside the claw sleeve assembly. The claw head is hinged to the top of the claw assembly, and after hinging, it can displace a distance A. The middle position of the claw assembly is rotatably connected to the claw sleeve assembly through a connecting member. A guide pin support is fixed at a position near the bottom of the outer sleeve wall. A guide positioning pin is installed on the guide pin support. The axis of the guide positioning pin is parallel to the axis of the operating handle, the operating rod or the inner operating rod. When the operating handle moves up and down by a distance A, the claw assembly is opened or closed by driving the operating rod, the inner operating rod and the claw head.

[0008] Preferably, the eyebolt assembly includes an eyebolt, an eyebolt mounting plate and a support. A central through hole is provided at the center of the support. The operating handle passes through the central through hole and is connected to the operating rod. The middle part on the outside of the support is fixedly connected to the eyebolt mounting plate. A through hole is provided at the top of the support, and a radial hole is provided on the operating handle. The safety pin passes through the through hole and the radial hole to axially limit the operating handle. The bottom of the support is fixedly sleeved in the outer sleeve. The two ends of the eyebolt are respectively connected to both sides of the eyebolt mounting plate. The height of the eyebolt is higher than the highest position where the operating handle moves.

[0009] Preferably, multiple intermediate sections are axially connected in sequence, multiple operating rods are connected in sequence, multiple outer sleeves are connected in sequence, and the operating rods are sleeved inside the outer sleeves.

[0010] Preferably, a joint is installed in the lowermost outer sleeve. The bottom of the joint is connected to the claw sleeve assembly. The lower end of the lowermost outer sleeve is connected to the claw sleeve assembly through the joint. The bottom of the balance spring is limited and fixed at the joint. The lowermost operating rod passes through the joint and is connected to the inner operating rod.

[0011] Preferably, the claw sleeve assembly includes a socket seat, a sleeve, a fixed inner ring, a positioning pin mounting seat and a platform positioning pin. The top of the socket seat is connected to the joint, the bottom of the socket seat is connected to the sleeve. A fixed inner ring is provided in the middle of the sleeve. Two positioning pin mounting seats are symmetrically provided at the bottom of the sleeve. Two platform positioning pins are installed in the positioning pin mounting seats. The axes of the two platform positioning pins are parallel to the axis of the guide positioning pin. The inner operating rod passes through the socket seat and is connected to the claw head. The claw head is installed in the sleeve at the top of the fixed inner ring.

[0012] Preferably, the gripper head includes a gripper head member and a guide ring. The guide ring is sleeved outside the gripper head member. The guide ring is sleeved inside the sleeve, and the outer wall of the guide ring is in contact with the inner wall of the sleeve. The top of the gripper head member is connected to the inner operating rod. Two gripper connecting parts are symmetrically arranged at the bottom of the gripper head member, and through holes are arranged on the gripper connecting parts.

[0013] Preferably, the gripper assembly includes two grippers and hinge members. The top of each gripper is provided with a strip-shaped hole, and a fixing hole is arranged in the middle of each gripper. The hinge member passes through the strip-shaped hole and the through hole on the gripper connecting part to hinge the gripper to the gripper connecting part. The axial position distance of the hinge member in the strip-shaped hole is distance A. A bolt passes through the fixing hole to rotatably fix the gripper on the fixed inner ring of the gripper sleeve assembly. The bottoms of the two grippers incline towards each other, and the two grippers are located between two platform positioning pins. When the operating handle moves upward, the gripper head drives the hinge member to move upward to the top of the strip-shaped hole, and the bottoms of the two grippers move away from each other, so that the spreader is opened. When the operating handle moves downward, the gripper head drives the hinge member to move downward to the bottom of the strip-shaped hole, and the bottoms of the two grippers approach each other, so that the spreader is closed.

[0014] Preferably, when the operating handle moves downward, the gripper head drives the hinge member to move downward to the bottom of the strip-shaped hole, and the bottoms of the two grippers approach each other, so that the spreader is closed. At the same time, the balance spring is compressed, and the operating handle is axially limited by the safety pin. When the safety pin is pulled out, the balance spring is in a rebounding state, driving the gripper head to move upward. The gripper head drives the hinge member to move upward to the top of the strip-shaped hole, and the bottoms of the two grippers move away from each other, so that the spreader is opened.

[0015] Preferably, there are two guiding and positioning pins. The two guiding and positioning pins are arranged parallel to each other. The connection line of the two platform positioning pins is perpendicular to the connection line of the two guiding and positioning pins. The bottom position of the guiding and positioning pin 9 is lower than the bottom position of the platform positioning pin.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] (1) The present utility model discloses a spreader for a transportation container hanging basket. By connecting the operating handle to the operating rod, the inner operating rod and the gripper head, the gripper is driven to open or close. The operation is remotely controlled through the operating handle. At the same time, the operating handle is axially limited by the safety pin, and it is not easy to unhook. The loading and unloading operation platform is located several meters below the spent fuel pool. When using this spreader for operation, the operator only needs to stand on the steel platform above the spent fuel pool and remotely operate the spreader of the hanging basket to realize the function of grasping the hanging basket assembly.

[0018] (2) The sling of the present utility model includes an upper operation end, an intermediate section, and a lower gripping end. The entire sling is designed as a multi-segment detachable structure. At the same time, there are multiple intermediate sections, and the multiple intermediate sections are axially connected in sequence. The outer sleeve adopts a multi-section stainless steel pipe structure, and the steel pipes are connected by threaded connectors. After connection, it is ensured to have good straightness. At the same time, the number of outer sleeves can be selected according to the depth of the loading and unloading operation platform, which is applicable to different depths;

[0019] (3) The operating rod of the sling of the present utility model does not bear the weight of the gripping load, is convenient and reliable in operation, and adopts an easily detachable connection form, with reliable connection and will not fall off by itself;

[0020] (4) The sling of the present utility model is designed with a guiding positioning pin and a platform positioning pin. The connection line of the two platform positioning pins is perpendicular to the connection line of the two guiding positioning pins, which is used to achieve the positioning function and can be accurately docked with the hanging basket. Description of the Drawings

[0021] Figure 1 Structural schematic diagram of the upper operation end and the intermediate section of a hanging basket sling for a transport container of the present utility model;

[0022] Figure 2 Structural schematic diagram of the intermediate section and the lower gripping end of a hanging basket sling for a transport container of the present utility model;

[0023] Figure 3 Structural schematic diagram of the intermediate section and the lower gripping end of a hanging basket sling for a transport container of the present utility model.

[0024] Description of the Reference Numerals in the Drawings:

[0025] 1. Operating handle, 2. Safety pin, 3. Operating rod, 4. Outer sleeve, 5. Balance spring, 6. Inner operating rod, 7. Gripping head, 8. Gripping claw assembly, 9. Guiding positioning pin, 10. Hanging ring assembly, 11. Guiding pin support, 12. Joint, 13. Gripping claw sleeve assembly;

[0026] 101. Hanging ring, 102. Hanging ring mounting plate, 103. Support;

[0027] 131. Socket seat, 132. Sleeve, 133. Fixed inner ring, 134. Positioning pin mounting seat, 135. Platform positioning pin;

[0028] 71. Gripping head part, 72. Guiding ring;

[0029] 711. Gripping hand connecting part;

[0030] 81. Gripping hand, 82. Hinge part;

[0031] 811. Slot, 812. Fixed hole. Detailed implementation manners

[0032] The following describes the specific implementation manners of the present utility model in conjunction with embodiments:

[0033] It should be noted that the structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0034] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, rather than used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present utility model.

[0035] The hanging basket lifting tool of the present utility model is a special tool for grasping the hanging basket of the FCTC-SNF01 type transportation container. When in use, its hanging ring assembly 10 is suspended on the hook of the man-bridge crane, and is used in the fuel building to transfer the hanging basket assembly between the transportation container and the operating platform in the spent fuel pool, and is also used for the loading and unloading process of the fuel rods of the transportation container. The hanging basket lifting tool can achieve remote operation of 11 meters. When used in conjunction with the hanging basket operating rod, the lifting tool can achieve remote control of the opening / closing operation, and vertically lift the hanging basket as a whole; the hanging basket lifting tool is equipped with a positioning pin, and the guiding positioning pin 9 is positioned with the bench, and the hanging basket can be accurately positioned and placed at a fixed position on the operating platform in the spent fuel pool. When the platform positioning pin 135 is positioned with the empty fuel pipe in the hanging basket for positioning the empty hanging basket, it is used to determine the orientation of the hanging basket; when the hanging basket is full of materials, the platform positioning pin 135 can be retracted or removed, and then enter the water again to lift the full-load hanging basket. When this lifting tool is not in use, it is suspended on the storage rack on the pool wall of the spent fuel storage pool in the fuel building. The claw assembly 8 of the lifting tool of the present utility model includes two claws 81, which are mainly used to grasp the hanging basket assembly with a hanging ring.

[0036] Embodiment 1

[0037] As Figures 1 to 3 shown, the present utility model discloses a transportation container hanging basket lifting tool, which includes an upper operation end, an intermediate section and a lower gripping head end;

[0038] The upper operation end includes an operation handle 1, a safety pin 2 and a hanging ring assembly 10; there are multiple intermediate sections, and the multiple intermediate sections are axially connected in sequence. The intermediate section includes an operation rod 3 and an outer sleeve 4; the lower gripping head end includes a balance spring 5, an inner operation rod 6, a gripping head 7, a claw assembly 8, a guiding positioning pin 9, a guiding pin support 11 and a claw sleeve assembly 13;

[0039] The operating handle 1 is sleeved in the sling assembly 10, and the operating handle 1 is axially limited at the top of the sling assembly 10 through a safety pin 2. The bottom of the sling assembly 10 is connected to the top of the outer sleeve 4. The bottom of the operating handle 1 is connected to the topmost operating rod 3. The operating rod 3 is sleeved inside the outer sleeve 4. The lower end of the lowermost operating rod 3 passes through a balance spring 5 and is connected to an inner operating rod 6. The top of the balance spring 5 is fixedly connected to the lowermost operating rod 3. The bottom of the balance spring 5 is limited at the bottom of the lowermost outer sleeve 4. The bottom of the outer sleeve 4 is connected to a claw sleeve assembly 13. The inner operating rod 6 is connected to a gripper head 7 and the gripper head 7 is located inside the claw sleeve assembly 13. The gripper head 7 is hinged to the top of a claw assembly 8, and after hinging, it can displace a distance A. The middle position of the claw assembly 8 is rotatably connected to the claw sleeve assembly 13 through a connecting member. A guide pin support 11 is fixed at a position near the bottom of the outer wall of the outer sleeve 4. A guide positioning pin 9 is installed on the guide pin support 11. The axis of the guide positioning pin 9 is parallel to the axis of the operating handle 1, the operating rod 3 or the inner operating rod 6. When the operating handle 1 moves up and down by a distance A, the claw assembly 8 is opened or closed by driving the operating rod 3, the inner operating rod 6 and the gripper head 7.

[0040] Embodiment 2

[0041] As Figure 1 shown, the sling assembly 10 includes a sling 101, a sling mounting plate 102 and a support 103. A central through hole is provided at the center of the support 103. The operating handle 1 passes through the central through hole and is connected to the operating rod 3. The middle part on the outside of the support 103 is fixedly connected to the sling mounting plate 102. A through hole is provided at the top of the support 103, and a radial hole is provided on the operating handle 1. The safety pin 2 passes through the through hole and the radial hole to axially limit the operating handle 1. The bottom of the support 103 is fixedly sleeved in the outer sleeve 4. The two ends of the sling 101 are respectively connected to both sides of the sling mounting plate 102. The height of the sling 101 is higher than the highest position where the operating handle 1 moves.

[0042] The hanging basket lifting tool is a special tool for grasping the hanging basket of the FCTC-SNF01 type transportation container. When in use, its sling assembly 10 is suspended on the hook of the man bridge crane and is used for transferring the hanging basket assembly between the transportation container and the operating platform in the spent fuel pool in the fuel building.

[0043] Embodiment 3

[0044] As Figure 2 shown, a plurality of the intermediate sections are axially connected in sequence, a plurality of operating rods 3 are connected in sequence, a plurality of outer sleeves 4 are connected in sequence, and the operating rod 3 is sleeved inside the outer sleeve 4.

[0045] As Figure 2As shown, a joint 12 is installed in the lowermost outer sleeve 4. The bottom of the joint 12 is connected to a gripper sleeve assembly 13. The lower end of the lowermost outer sleeve 4 is connected to the gripper sleeve assembly 13 through the joint 12. The bottom of the balance spring 5 is limited and fixed at the joint 12. The lowermost operating rod 3 passes through the joint 12 and is connected to an inner operating rod 6.

[0046] Multiple intermediate sections are axially connected in sequence. The outer sleeve adopts a multi-section stainless steel pipe structure, and the pipes are connected by threaded connectors. After connection, it is ensured that it has good straightness.

[0047] The operating rod 3 and the operating handle 1 move up and down by the external force and the acting force of the balance spring 5, so as to drive the gripper assembly 8 to grab the fuel assembly.

[0048] The operating rod 3 does not bear the weight of the grasping load, is convenient and reliable in operation, and adopts a connection form that is easy to disassemble, with reliable connection and will not fall off by itself.

[0049] Embodiment 4

[0050] As Figure 2 shown, the gripper sleeve assembly 13 includes a socket 131, a sleeve 132, a fixed inner ring 133, a positioning pin mounting seat 134 and a platform positioning pin 135. The top of the socket 131 is connected to the joint 12, the bottom of the socket 131 is connected to the sleeve 132. A fixed inner ring 133 is arranged in the middle of the sleeve 132. Two positioning pin mounting seats 134 are symmetrically arranged at the bottom of the sleeve 132. Two platform positioning pins 135 are installed in the positioning pin mounting seats 134. The axes of the two platform positioning pins 135 are parallel to the axis of the guiding positioning pin 9. The inner operating rod 6 passes through the socket 131 and is connected to a gripper head 7. The gripper head 7 is installed in the sleeve 132 at the top of the fixed inner ring 133.

[0051] As Figure 2 、 3 shown, the gripper head 7 includes a gripper head part 71 and a guiding ring 72. The guiding ring 72 is sleeved outside the gripper head part 71. The guiding ring 72 is sleeved in the sleeve 132, and the outer wall of the guiding ring 72 is in contact with the inner wall of the sleeve 132. The top of the gripper head part 71 is connected to the inner operating rod 6. Two gripper connecting parts 711 are symmetrically arranged at the bottom of the gripper head part 71. Through holes are arranged on the gripper connecting parts 711.

[0052] Embodiment 5

[0053] As Figure 3As shown in the figure, the gripper assembly 8 includes two grippers 81 and two hinge members 82. A strip-shaped hole 811 is provided at the top of the gripper 81, and a fixing hole 812 is provided in the middle of the gripper 81. The hinge member 82 passes through the strip-shaped hole 811 and the through hole on the gripper connecting part 711 to hinge the gripper 81 to the gripper connecting part 711. The axial position distance of the hinge member 82 in the strip-shaped hole 811 is distance A. A bolt passes through the fixing hole 812 to rotatably fix the gripper 81 on the fixed inner ring 133 of the gripper sleeve assembly 13. The bottoms of the two grippers 81 incline towards each other, and the two grippers 81 are located between the two platform positioning pins 135. When the operating handle 1 moves upward, the gripper head 7 drives the hinge member 82 to move upward to the top of the strip-shaped hole 811, and the bottoms of the two grippers 81 move away from each other, thereby opening the spreader; when the operating handle 1 moves downward, the gripper head 7 drives the hinge member 82 to move downward to the bottom of the strip-shaped hole 811, and the bottoms of the two grippers 81 approach each other, thereby closing the spreader.

[0054] As Figures 1 to 3 shown in the figure, when the operating handle 1 moves downward, the gripper head 7 drives the hinge member 82 to move downward to the bottom of the strip-shaped hole 811, and the bottoms of the two grippers 81 approach each other, thereby closing the spreader. At the same time, the balance spring 5 is compressed, and the operating handle 1 is axially limited by the safety pin 2; when the safety pin 2 is pulled out, the balance spring 5 is in a state of rebounding, driving the gripper head 7 to move upward. The gripper head 7 drives the hinge member 82 to move upward to the top of the strip-shaped hole 811, and the bottoms of the two grippers 81 move away from each other, thereby opening the spreader.

[0055] As Figure 2 shown in the figure, there are two guiding and positioning pins 9. The two guiding and positioning pins 9 are arranged parallel to each other. The connection line of the two platform positioning pins 135 is perpendicular to the connection line of the two guiding and positioning pins 9. The bottom position of the guiding and positioning pins 9 is lower than the bottom position of the platform positioning pins 135.

[0056] The safety pin 2 is used to lock the position of the operating rod 3 when the gripper grabs or releases the spent fuel assembly, so as to ensure that the gripper 81 is always in a locked or open state, thereby achieving the purpose of safely transporting or unloading the spent fuel assembly, and the safety factor is high.

[0057] The working principle of the present utility model is as follows:

[0058] The present utility model discloses a lifting spreader for a transportation container hanging basket. The spreader is divided into an upper operation end, a middle section and a lower gripper head end; as Figure 1 shown in the figure, the upper operation end is provided with an operating handle 1, a safety pin 2 and a sling assembly 10; as Figure 2 , 3As shown, the operating rod 3 of the middle section penetrates into the outer sleeve 4 and is connected to the inner operating rod 6 at the lower gripper end. The operating rod 3 and the outer sleeve 4 are segmented according to the use length of the lifting device and are assembled by a multi-segment flexible connection method. The guiding and positioning pin 9 is used for guiding and positioning when the lifting device grabs the hanging basket assembly to prevent damage to the assembly.

[0059] As Figures 1 to 3 The state shown is the locked state of the lifting device. The operating handle 1 and the operating rod 3 are locked at the top of the lifting device through the safety pin 2. The balance spring 5 is in a compressed state, and the lower gripper assembly 8 is in a closed state (the position shown by the solid line). This state is the state after grabbing the hanging basket ring;

[0060] When the safety pin 2 is pulled out, the balance spring 5 is in a rebounding state, driving the gripper head 7 to move upward, and the gripper assembly 8 opens (the position shown by the dotted line). The lifting device is in an open state for the relaxation action of the hanging basket ring.

[0061] The utility model discloses a hanging basket lifting device for a transportation container, which connects an operating rod, an inner operating rod and a gripper head through an operating handle, drives the gripper to open or close, and is remotely controlled through the operating handle. At the same time, the axial limit of the operating handle is carried out through the safety pin, and it is not easy to unhook; The loading and unloading operation platform is located several meters below the spent fuel pool. When using this lifting device for operation, the operator can realize the function of grabbing the hanging basket assembly as long as he stands on the steel platform above the spent fuel pool and remotely operates the hanging basket lifting device.

[0062] The lifting device of the utility model includes an upper operating end, a middle section and a lower gripper end. The whole lifting device is designed as a multi-segment detachable structure. At the same time, there are multiple middle sections, and multiple middle sections are axially connected in sequence. The outer sleeve adopts a multi-section stainless steel pipe structure, and the steel pipes are connected through threaded connectors. After connection, it is ensured that it has good straightness. At the same time, the number of matching outer sleeves can be selected according to the depth of the loading and unloading operation platform, which is applicable to different depths.

[0063] The operating rod of the lifting device of the utility model does not bear the weight of the grabbing load, is convenient and reliable in operation, and adopts a connection form that is easy to disassemble, with reliable connection and will not fall off by itself.

[0064] The lifting device of the utility model is designed with guiding and positioning pins and platform positioning pins. The connection line of the two platform positioning pins is perpendicular to the connection line of the two guiding and positioning pins to realize the positioning function and can be accurately docked with the hanging basket.

[0065] The above has made a detailed description of the preferred embodiment of the utility model, but the utility model is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of the utility model.

[0066] Many other changes and modifications can be made without departing from the spirit and scope of the present utility model. It should be understood that the present utility model is not limited to the specific embodiments, and the scope of the present utility model is defined by the appended claims.

Claims

1. A transport container hanging basket sling, characterized in that: It includes an upper operating end, a middle section and a lower grabbing end; The upper operating end comprises an operating handle (1), a safety pin (2) and a lifting ring assembly (10); there are a plurality of intermediate sections, which are axially connected in sequence, and the intermediate sections comprise an operating rod (3) and an outer sleeve (4); the lower gripping head end comprises a balancing spring (5), an inner operating rod (6), a gripping head (7), a gripping claw assembly (8), a guide positioning pin (9), a guide pin support (11) and a gripping claw sleeve assembly (13); The operating handle (1) is sleeved in the lifting ring assembly (10), and the operating handle (1) is axially limited at the top of the lifting ring assembly (10) by a safety pin (2). The bottom of the lifting ring assembly (10) is connected to the top of the outer sleeve (4). The bottom of the operating handle (1) is connected to the topmost operating rod (3). The operating rod (3) is sleeved inside the outer sleeve (4). The lower end of the bottommost operating rod (3) passes through a balance spring (5) to connect to an inner operating rod (6). The top of the balance spring (5) is fixedly connected to the bottommost operating rod (3). The bottom of the balance spring (5) is limited at the bottom of the bottommost outer sleeve (4). The bottom of the outer sleeve (4) is connected to the claw sleeve assembly (13). The inner operating rod (6) is connected to the gripping head. (7) and the gripping head (7) is located inside the gripping claw sleeve assembly (13), the gripping head (7) is hinged to the top of the gripping claw assembly (8), and can be displaced a distance A after being hinged, the middle position of the gripping claw assembly (8) is rotatably connected to the gripping claw sleeve assembly (13) through a connecting piece, a guide pin support (11) is fixed to the outer wall of the outer sleeve (4) near the bottom, a guide positioning pin (9) is installed on the guide pin support (11), the axis of the guide positioning pin (9) is parallel to the axis of the operating handle (1), the operating rod (3) or the inner operating rod (6), the operating handle (1) moves up and down a distance A, and the gripping claw assembly (8) is opened or closed by driving the operating rod (3), the inner operating rod (6) and the gripping head (7).

2. A transport container hanging basket sling according to claim 1, characterized in that: The lifting ring assembly (10) comprises a lifting ring (101), a lifting ring mounting plate (102) and a support (103). A central through hole is provided at the center of the support (103). The operating handle (1) passes through the central through hole to connect to the operating rod (3). The middle part of the outer side of the support (103) is fixedly connected to the lifting ring mounting plate (102). A through hole is provided at the top of the support (103). The operating handle (1) is provided with a radial hole. A safety pin (2) passes through the through hole and the radial hole to axially limit the operating handle (1). The bottom of the support (103) is fixedly sleeved in the outer sleeve (4). The two ends of the lifting ring (101) are respectively connected to the two sides of the lifting ring mounting plate (102). The height of the lifting ring (101) is higher than the highest point where the operating handle (1) moves.

3. A transport container hanging basket sling according to claim 1, characterized in that: The plurality of intermediate sections are axially connected in sequence, the plurality of operating rods (3) are connected in sequence, the plurality of outer sleeves (4) are connected in sequence, and the operating rods (3) are sleeved inside the outer sleeves (4).

4. A transport container hanging basket sling according to claim 1, characterized in that: A joint (12) is installed in the outer sleeve (4) at the bottom, the bottom of the joint (12) is connected to the claw sleeve assembly (13), the lower end of the outer sleeve (4) at the bottom is connected to the claw sleeve assembly (13) through the joint (12), the bottom of the balance spring (5) is fixed at the joint (12), and the operating rod (3) at the bottom passes through the joint (12) to connect to the inner operating rod (6).

5. A transport container hanging basket sling according to claim 4, characterized in that: The gripper sleeve assembly (13) comprises a sleeve seat (131), a sleeve (132), a fixed inner ring (133), a locating pin mounting seat (134) and a platform locating pin (135); the top of the sleeve seat (131) is connected to the joint (12); the bottom of the sleeve seat (131) is connected to the sleeve (132); a fixed inner ring (133) is arranged in the middle of the sleeve (132); two locating pin mounting seats (134) are symmetrically arranged at the bottom of the sleeve (132); two platform locating pins (135) are mounted in the locating pin mounting seats (134); the axes of the two platform locating pins (135) are parallel to the axis of the guide locating pin (9); the inner operating rod (6) passes through the sleeve seat (131) and is connected to the gripper (7); the gripper (7) is mounted in the sleeve (132) at the top of the fixed inner ring (133).

6. A transport container hanging basket sling according to claim 5, characterized in that: The gripping head (7) comprises a gripping head piece (71) and a guide ring (72), wherein the guide ring (72) is sleeved on the outside of the gripping head piece (71), the guide ring (72) is sleeved in the sleeve (132), and the outer wall of the guide ring (72) is in contact with the inner wall of the sleeve (132), the top of the gripping head piece (71) is connected to the inner operating rod (6), and the bottom of the gripping head piece (71) is symmetrically provided with two gripping connection parts (711), and the gripping connection parts (711) are provided with through holes.

7. A transport container hanging basket sling according to claim 6, characterized in that: The gripper assembly (8) comprises a gripper (81) and a hinged member (82), each of which comprises two grippers (81) and two hinged members (82), a strip hole (811) being provided at the top of the gripper (81), a fixing hole (812) being provided at the middle of the gripper (81), the hinged member (82) passing through the strip hole (811) and a through hole on the gripper connecting portion (711) to hinge the gripper (81) with the gripper connecting portion (711), the axial position distance of the hinged member (82) in the strip hole (811) being a distance A, a bolt passing through the fixing hole (812) to rotatably fix the gripper (81) On the fixed inner ring (133) of the gripper sleeve assembly (13), the bottoms of the two grippers (81) are inclined toward a side close to each other, and the two grippers (81) are located between the two platform positioning pins (135); when the operating handle (1) moves upward, the gripping head (7) drives the hinge (82) to move upward to the top of the strip hole (811), and the bottoms of the two grippers (81) move away from each other, thereby opening the sling; when the operating handle (1) moves downward, the gripping head (7) drives the hinge (82) to move downward to the bottom of the strip hole (811), and the bottoms of the two grippers (81) move close to each other, thereby closing the sling.

8. A transport container hanging basket sling according to claim 7, characterized in that: When the operating handle (1) moves downward, the gripping head (7) drives the hinge (82) to move downward to the bottom of the strip hole (811), and the bottoms of the two gripping hands (81) move closer together, thereby closing the sling, and at the same time the balancing spring (5) is compressed, and the operating handle (1) is axially limited by the safety pin (2); when the safety pin (2) is pulled out, the balancing spring (5) is in a rebound state, driving the gripping head (7) to move upward, and the gripping head (7) drives the hinge (82) to move upward to the top of the strip hole (811), and the bottoms of the two gripping hands (81) move away from each other, thereby opening the sling.

9. A transport container hanging basket sling according to claim 5, characterized in that: There are two guide positioning pins (9), the two guide positioning pins (9) are arranged relatively parallel, the connecting line of the two platform positioning pins (135) is perpendicular to the connecting line of the two guide positioning pins (9), and the bottom position of the guide positioning pin (9) is lower than the bottom position of the platform positioning pin (135).

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