A bending structure for vertical-to-horizontal conveying of nuclear power waste pipes

By designing a bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes and adopting a combination of bidirectional clamping and correction, the risks of deformation and falling of the pipes during the extraction process were solved, achieving stable conveying and efficient processing, and improving the quality and safety of nuclear power plant waste pipe treatment.

CN224525818UActive Publication Date: 2026-07-21CHINA URUMQI XIANCHU NUCLEAR ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA URUMQI XIANCHU NUCLEAR ENERGY TECH CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing nuclear power plant waste pipe processing devices are prone to pipe deformation, insufficient clamping force, jamming, and falling during the extraction process, making them unable to effectively perform volume reduction processing.

Method used

A bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes is designed. It adopts a bidirectional clamping method and achieves stable clamping and correction of the pipes by combining components such as a vertical clamping driven wheel assembly, a vertical extraction transmission wheel assembly, a positioning and straightening wheel assembly, a bending wheel assembly, and a horizontal clamping driven wheel assembly, thereby ensuring the stability and reliability of the pipes during the conveying process.

Benefits of technology

It improves the clamping effect and extraction force of pipe fittings, reduces the risk of falling, ensures the stability of pipe fittings during transportation, improves the quality and efficiency of processing, provides reliable interface conditions, and enhances the consistency and safety of the overall processing flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to nuclear waste treatment technical field, and disclose a kind of bending structure of nuclear power waste pipe vertical change horizontal conveying, including device outer casing, its inside installation vertical clamping driven wheel assembly, vertical extraction transmission wheel assembly, positioning straightening wheel assembly, bending wheel assembly, horizontal clamping driven wheel assembly and horizontal extraction transmission wheel assembly, pipe fitting sequentially through above-mentioned component, vertical extraction transmission wheel assembly contains transmission long shaft, transmission wheel etc., and is extracted by motor drive gear transmission, vertical clamping driven wheel assembly, positioning straightening wheel assembly etc.Each has specific structure and function, wherein, the clamping, extraction component of vertical and horizontal direction is equipped with two groups of symmetry distribution in pipe fitting two sides, the structure is through bidirectional clamping to improve stability and extraction force, reduce pipe fitting drop risk, with extraction and correction function, guarantee conveying smooth, create favorable conditions for subsequent shrinkage processing, applicable to the conveying bending operation of deformed nuclear power waste pipe.
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Description

Technical Field

[0001] This utility model relates to the field of nuclear waste treatment technology, specifically a bending structure for vertical to horizontal conveying of nuclear power plant waste pipes. Background Technology

[0002] In nuclear power generation, some testing-related pipes need to be replaced periodically. Usually, the components with pipes are first placed in the component pool, and then the volume is reduced using relevant equipment to facilitate subsequent storage and processing. When processing these pipes, some pipes are embedded deep inside the shelf fixtures, and the equipment cannot reach inside for volume reduction. These pipes need to be pulled out of the shelf and reduced in volume in equipment with external shielding. Because these pipes have been working in an irradiated environment for a long time, they have become deformed. During the extraction process, reliable transport must be ensured to prevent them from falling back into the shelf or pool.

[0003] Existing devices have the risk of pipe deformation, insufficient clamping and pulling force causing jamming, pipe falling during operation, uncontrollable deformation direction, and insufficient pulling force. Therefore, a bending structure that can be transformed from vertical to horizontal conveying is needed to handle nuclear waste pipelines. Utility Model Content

[0004] The purpose of this invention is to provide a bending structure for vertical-to-horizontal transport of nuclear power plant waste pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes, comprising a device housing, characterized in that: a vertical clamping driven wheel assembly, a vertical pulling transmission wheel assembly, a positioning and straightening wheel assembly, a bending wheel assembly, a horizontal clamping driven wheel assembly, and a horizontal pulling transmission wheel assembly are installed inside the device housing; a pipe is provided inside the vertical clamping driven wheel assembly, and the pipe passes through the above-mentioned components in sequence;

[0006] The vertical pull-out transmission wheel assembly includes a transmission shaft, a transmission wheel, a first bearing, a driven gear, a driving gear, a main transmission shaft, a secondary driving gear, a reducer, and a motor. The transmission wheel is mounted on the transmission shaft via the first bearing. The driven gear is mounted on one end of the transmission shaft. The driving gear is mounted on the main transmission shaft and meshes with the driven gear. The secondary driving gear is mounted on one end of the main transmission shaft and is connected to the output end of the reducer. The reducer is connected to the motor.

[0007] Preferably, the vertical clamping driven wheel assembly includes a guide limiting component, a first fixed shaft, a first driven wheel, a first slide groove, a first slider, a hanging lug, an outer mounting flange, a first hydraulic cylinder, and a driven wheel mounting component. The first fixed shaft is mounted on the driven wheel mounting component, the first driven wheel is sleeved on the first fixed shaft, the driven wheel mounting component is connected to the first slider, the first slider is slidably disposed in the first slide groove, the output end of the first hydraulic cylinder is connected to the first slider, the first hydraulic cylinder is mounted on the device housing through a hydraulic cylinder fixing component, the guide limiting component is disposed on one side of the first driven wheel, the outer mounting flange is disposed on the outer side of the device housing, and the hanging lug is disposed on the device housing.

[0008] Preferably, the positioning and straightening wheel assembly includes a fixed straightening wheel, a sliding straightening wheel, a second hydraulic cylinder, a hydraulic cylinder fixing component, a second bearing, and a slide rail. The fixed straightening wheel is fixedly installed inside the device housing. The sliding straightening wheel is mounted on the slider via the second bearing. The slider is slidably installed in the slide rail. The output end of the second hydraulic cylinder is connected to the slider. The second hydraulic cylinder is mounted on the device housing via the hydraulic cylinder fixing component.

[0009] Preferably, the bending wheel assembly includes a bending wheel, a third hydraulic cylinder, a second hydraulic cylinder fixing component, and a third bearing. The bending wheel is mounted on a mounting shaft via the third bearing. The mounting shaft is connected to the output end of the third hydraulic cylinder. The third hydraulic cylinder is mounted on the outer casing of the device via the second hydraulic cylinder fixing component.

[0010] Preferably, the horizontal clamping driven wheel assembly includes a second driven wheel, an outlet end guide limiter, an inlet end guide limiter, a second slide groove, a fourth hydraulic cylinder, a second fixed shaft, a second slider, and a hydraulic cylinder fixing component three. The second fixed shaft is mounted on the second slider, the second driven wheel is sleeved on the second fixed shaft, the second slider is slidably disposed in the second slide groove, the output end of the fourth hydraulic cylinder is connected to the second slider, the fourth hydraulic cylinder is mounted on the device housing through the hydraulic cylinder fixing component three, the inlet end guide limiter is disposed next to the second driven wheel on the side closer to the bending wheel assembly, and the outlet end guide limiter is disposed next to the second driven wheel on the side farther from the bending wheel assembly.

[0011] Preferably, the structure of the horizontal pull-out drive wheel assembly is the same as that of the vertical pull-out drive wheel assembly.

[0012] Preferably, the vertical clamping driven wheel assembly, the vertical pull-out transmission wheel assembly, the horizontal clamping driven wheel assembly, and the horizontal pull-out transmission wheel assembly are all provided in two sets, and the two sets are symmetrically distributed on both sides of the pipe fitting.

[0013] Compared with the prior art, this utility model provides a bending structure for vertical to horizontal conveying of nuclear power plant waste pipes, which has the following beneficial effects:

[0014] 1. This bending structure for vertical-to-horizontal transport of nuclear power plant waste pipes, through bidirectional clamping transport, improves clamping effect and increases extraction force. This design fundamentally changes the problem of insufficient clamping force in traditional transport. Through symmetrically distributed clamping components, a balanced and stable force can be applied from both sides of the pipe, significantly improving the clamping effect. This bidirectional force mode not only keeps the pipe stable during transport but also significantly improves the overall extraction force, ensuring that even when facing waste pipes with irregular shapes or certain resistance, the transport operation can be completed smoothly. At the same time, the bidirectional structural arrangement is the core of reducing the risk of pipe falling. Traditional unidirectional clamping structures are prone to loosening due to excessive force on one side during long-term use or in the face of emergencies, which can lead to pipe falling and serious safety accidents. This bending structure, through its bidirectional symmetrical layout, forms a mutually restraining and synergistic force system, which constrains the pipe in all aspects from a spatial dimension, minimizing the risk of falling and building a solid line of defense for the safety protection of nuclear power plant waste pipe processing sites.

[0015] 2. The bending structure for vertical-to-horizontal transport of nuclear power plant waste pipes has dual functions of extraction and clamping correction. During the transport process, when encountering pipes that have deformed due to long-term use or storage, the bidirectional clamping force will apply a certain correction force to the pipes while they are being extracted, gradually adjusting the irregularly deformed pipes to a relatively regular shape. This correction effect creates extremely favorable conditions for subsequent shearing and volume reduction processing, reducing problems such as shearing difficulties and low efficiency caused by abnormal pipe shapes, thereby improving the overall quality and speed of nuclear power plant waste pipe processing.

[0016] 3. The bending structure of the nuclear power plant waste pipe, which is vertical to horizontal, benefits from stable clamping and conveying force. The extracted pipe can always maintain a stable movement state, which provides reliable interface conditions for subsequent volume reduction processing. Stable conveying not only avoids interface docking deviations caused by pipe shaking or offset, but also allows subsequent equipment to obtain more accurate positioning during processing, thereby improving the continuity and efficiency of the overall processing flow. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the vertical clamping driven wheel assembly of this utility model.

[0021] Figure 4 This is a schematic diagram of the horizontal clamping driven wheel assembly of this utility model.

[0022] Figure 5 This is a schematic diagram of the structural positioning and straightening wheel assembly of this utility model;

[0023] Figure 6 The structure of this utility model Figure 5 Enlarged view of point A in the middle;

[0024] Figure 7 This is a schematic diagram of the vertical pull-out transmission wheel assembly of this utility model.

[0025] Figure 8 The structure of this utility model Figure 7 Enlarged view of point B in the middle;

[0026] Figure 9 This is a partial schematic diagram of the structural positioning and straightening wheel assembly and the horizontal clamping driven wheel assembly of this utility model;

[0027] Figure 10 The structure of this utility model Figure 9 Enlarged view of point C in the middle;

[0028] Figure 11 This is a schematic diagram of the overall structure of the vertical pull-out transmission wheel assembly of this utility model;

[0029] Figure 12 This is a schematic diagram of the overall structure of the vertical clamping driven wheel assembly of this utility model;

[0030] Figure 13 This is a schematic diagram of the structural positioning and straightening wheel assembly and the bending wheel assembly of this utility model;

[0031] Figure 14 This is a schematic diagram of the overall structure of the horizontal clamping driven wheel assembly of this utility model.

[0032] In the diagram: 1. Vertical clamping driven wheel assembly; 1-1. Guide limit component; 1-2. First fixed shaft; 1-3. First driven wheel; 1-4. First slide groove; 1-5. First slider; 1-6. Hanging lug; 1-7. External mounting flange; 1-8. First hydraulic cylinder; 1-9. Driven wheel mounting component; 2. Vertical pull-out transmission wheel assembly; 2-1. Transmission shaft; 2-2. Transmission wheel; 2-3. First bearing; 2-4. Driven gear; 2-5. Drive gear; 2-6. Main transmission shaft; 2-7. Secondary drive gear; 2-8. Reducer; 2-9. Motor; 3. Positioning and straightening wheel assembly; 3-1. Fixed straightening wheel; 3-2 1. Sliding straightening wheel; 3-3. Second hydraulic cylinder; 3-4. Hydraulic cylinder fixing part one; 3-5. Second bearing; 3-6. Slide rail; 4. Bending wheel assembly; 4-1. Bending wheel; 4-2. Third hydraulic cylinder; 4-3. Hydraulic cylinder fixing part two; 4-4. Third bearing; 5. Horizontal clamping driven wheel assembly; 5-1. Second driven wheel; 5-2. Outlet end guide limit part; 5-3. Inlet end guide limit part; 5-4. Second slide rail; 5-5. Fourth hydraulic cylinder; 5-6. Second fixed shaft; 5-7. Second slider; 5-8. Hydraulic cylinder fixing part three; 6. Horizontal pull-out transmission wheel assembly; 7. Pipe fittings; 8. Device housing. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] This utility model provides the following technical solution:

[0036] Please see Figure 1-14A bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes includes a device housing 8. Inside the device housing 8, there are a vertical clamping driven wheel assembly 1, a vertical pulling transmission wheel assembly 2, a positioning and straightening wheel assembly 3, a bending wheel assembly 4, a horizontal clamping driven wheel assembly 5, and a horizontal pulling transmission wheel assembly 6. Inside the vertical clamping driven wheel assembly 1, there is a pipe 7, which passes through the above-mentioned components in sequence.

[0037] The vertical pull-out transmission wheel assembly 2 includes a transmission shaft 2-1, a transmission wheel 2-2, a first bearing 2-3, a driven gear 2-4, a driving gear 2-5, a main transmission shaft 2-6, a secondary driving gear 2-7, a reducer 2-8, and a motor 2-9. The transmission wheel 2-2 is mounted on the transmission shaft 2-1 via the first bearing 2-3. The driven gear 2-4 is mounted on one end of the transmission shaft 2-1. The driving gear 2-5 is mounted on the main transmission shaft 2-6 and meshes with the driven gear 2-4. The secondary driving gear 2-7 is mounted on one end of the main transmission shaft 2-6 and is connected to the output end of the reducer 2-8. The reducer 2-8 is connected to the motor 2-9.

[0038] The vertical clamping driven wheel assembly 1 includes a guide limiting component 1-1, a first fixed shaft 1-2, a first driven wheel 1-3, a first slide groove 1-4, a first slider 1-5, a hanging lug 1-6, an outer mounting flange 1-7, a first hydraulic cylinder 1-8, and a driven wheel mounting component 1-9. The first fixed shaft 1-2 is mounted on the driven wheel mounting component 1-9, the first driven wheel 1-3 is sleeved on the first fixed shaft 1-2, the driven wheel mounting component 1-9 is connected to the first slider 1-5, the first slider 1-5 is slidably disposed in the first slide groove 1-4, the output end of the first hydraulic cylinder 1-8 is connected to the first slider 1-5, and the first hydraulic cylinder 1-8 is mounted on the device housing 8 through a hydraulic cylinder fixing component. The guide limiting component 1-1 is disposed on one side of the first driven wheel 1-3, the outer mounting flange 1-7 is disposed on the outside of the device housing 8, and the hanging lug 1-6 is disposed on the device housing 8.

[0039] The positioning and straightening wheel assembly 3 includes a fixed straightening wheel 3-1, a sliding straightening wheel 3-2, a second hydraulic cylinder 3-3, a hydraulic cylinder fixing component 3-4, a second bearing 3-5, and a slide rail 3-6. The fixed straightening wheel 3-1 is fixedly installed inside the outer shell 8 of the device. The sliding straightening wheel 3-2 is mounted on the slider through the second bearing 3-5. The slider is slidably installed in the slide rail 3-6. The output end of the second hydraulic cylinder 3-3 is connected to the slider. The second hydraulic cylinder 3-3 is mounted on the outer shell 8 of the device through the hydraulic cylinder fixing component 3-4.

[0040] The bending wheel assembly 4 includes a bending wheel 4-1, a third hydraulic cylinder 4-2, a hydraulic cylinder fixing part 2 4-3, and a third bearing 4-4. The bending wheel 4-1 is mounted on the mounting shaft via the third bearing 4-4. The mounting shaft is connected to the output end of the third hydraulic cylinder 4-2. The third hydraulic cylinder 4-2 is mounted on the outer casing 8 of the device via the hydraulic cylinder fixing part 2 4-3.

[0041] The horizontal clamping driven wheel assembly 5 includes a second driven wheel 5-1, an outlet end guide limiter 5-2, an inlet end guide limiter 5-3, a second slide groove 5-4, a fourth hydraulic cylinder 5-5, a second fixed shaft 5-6, a second slider 5-7, and a hydraulic cylinder fixing member 3 5-8. The second fixed shaft 5-6 is mounted on the second slider 5-7. The second driven wheel 5-1 is sleeved on the second fixed shaft 5-6. The second slider 5-7 is slidably disposed in the second slide groove 5-4. The output end of the fourth hydraulic cylinder 5-5 is connected to the second slider 5-7. The fourth hydraulic cylinder 5-5 is mounted on the device housing 8 through the hydraulic cylinder fixing member 3 5-8. The inlet end guide limiter 5-3 is disposed next to the second driven wheel 5-1 on the side close to the bending wheel assembly 4, and the outlet end guide limiter 5-2 is disposed next to the second driven wheel 5-1 on the side away from the bending wheel assembly 4.

[0042] The structure of the horizontal pull-out drive wheel assembly 6 is the same as that of the vertical pull-out drive wheel assembly 2.

[0043] The vertical clamping driven wheel assembly 1, the vertical pull-out transmission wheel assembly 2, the horizontal clamping driven wheel assembly 5, and the horizontal pull-out transmission wheel assembly 6 are each provided in two sets, and the two sets are symmetrically distributed on both sides of the pipe fitting 7.

[0044] In actual operation, when this device is used, the pipe 7 to be processed is lifted by the gripper between the vertical clamping driven wheel assembly 1 and the vertical pulling transmission wheel assembly 2. After stopping at a suitable height, it starts to work. The vertical clamping driven wheel assembly 1 drives the internal moving parts to move through the first hydraulic cylinder 1-8. The first slider 1-5 is limited by the first slide groove 1-4 and can only move in a straight line, thus bringing the first driven wheel 1-3 and the associated parts closer to the vertical pulling transmission wheel assembly 2. The moving parts and fixed parts of the guide limiting part 1-1 guide the deformed pipe 7 and gradually limit it into the slot.

[0045] Under the push of the vertical clamping driven wheel assembly 1, the pipe 7 gradually approaches the vertical pulling transmission wheel assembly 2 through the guide limiter 1-1 and is limited to the groove between the transmission wheel 2-2 and the first driven wheel 1-3. After reaching the position, the motor 2-9 in the vertical pulling transmission wheel assembly 2 starts, and the amplified torque is transmitted to the main transmission shaft 2-6 through the reducer 2-8, thereby driving the drive gear 2-5 to rotate. The drive gear 2-5 drives the two sets of driven gears 2-4 to rotate in the same direction. One of the driven gears 2-4 drives the secondary drive gear 2-7 to rotate, and the secondary drive gear 2-7 drives the far-end driven gear 2-4 to rotate, thus ensuring that the three driven gears 2-4 rotate in the same direction. The rotational torque is transmitted to the transmission wheel 2-2 through the transmission shaft 2-1. Because the first driven wheel 1-3 presses the pipe 7 into the groove of the transmission wheel 2-2, when the transmission wheel 2-2 rotates, the pipe 7 can be pulled and conveyed by friction. When the output pressure of the first hydraulic cylinder 1-8 changes, the pulling force of the transmission wheel 2-2 on the pipe 7 will also change accordingly.

[0046] Continue pulling the pipe 7 upwards. When it reaches the limit correction position, the second hydraulic cylinder 3-3 starts and drives the relevant parts of the sliding straightening wheel 3-2 to move linearly. Because the second bearing 3-5 is restricted in the groove of the slide 3-6, the direction can only be along a straight line, and there is no swaying in other directions. Finally, the sliding straightening wheel 3-2 clamps the pipe in the groove of the fixed straightening wheel 3-1. Because the fixed straightening wheel 3-1 and the sliding straightening wheel 3-2 have embedded bearings, they can rotate under the action of external force. When the vertical pulling transmission wheel assembly 2 pulls the pipe 7 upwards, it can perform the limit correction operation on the pipe 7.

[0047] As the pipe 7 continues to be pulled upwards, the vertical pulling transmission wheel assembly 2 pauses the pulling operation when it reaches the bending position. The third hydraulic cylinder 4-2 is activated, driving the bending wheel 4-1 and its associated parts to move linearly. Because the third bearing 4-4 ​​is confined within the groove of the slide rail 3-6, the entire set of moving parts can only move linearly. At the same time, because the pipe 7 is clamped and corrected by the sliding straightening wheel 3-2 and the fixed straightening wheel 3-1, it can be ensured that the groove of the bending wheel 4-1 is just pressed against the outer wall of the pipe 7. When the third hydraulic cylinder 4-2 is in position, the pipe 7 is bent into a fixed angle.

[0048] When the bending wheel assembly 4 bends the pipe 7, the pipe head will be guided and limited by the inlet end guide limiter 5-3, thereby ensuring that the bent pipe 7 and the second driven wheel 5-1 and the wheel groove are on the same plane.

[0049] After bending to the correct position, the fourth hydraulic cylinder 5-5 in the horizontal clamping driven wheel assembly 5 is activated, causing the second driven wheel 5-1 and related parts to move linearly. Because the second slider 5-7 is confined within the second slide groove 5-4, the related moving parts have only one linear degree of freedom. When the fourth hydraulic cylinder 5-5 reaches its position, the pipe 7 is clamped in the groove between the second driven wheel 5-1 and the horizontal pulling transmission wheel assembly 6. By adjusting the pressure of the fourth hydraulic cylinder 5-5, the pulling force of the horizontal pulling transmission wheel assembly 6 on the pipe 7 can be changed. The control motor is activated (the principle is the same as that of the vertical pulling transmission wheel assembly 2), and the horizontal clamping and pulling of the pipe 7 begins. Then, the motor 2-9 in the vertical pulling transmission wheel assembly 2 is activated again to complete the horizontal and vertical clamping and pulling operation.

[0050] During the horizontal and vertical extraction of pipe fitting 7, the relevant wheel group of the positioning and straightening wheel assembly 3 keeps clamped and rotating to correct pipe fitting 7 in real time, ensuring that the deformed pipe fitting 7 becomes more regular after extraction, which is convenient for subsequent volume reduction shearing.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes, comprising a device housing (8), characterized in that: The device housing (8) is equipped with a vertical clamping driven wheel assembly (1), a vertical pull-out transmission wheel assembly (2), a positioning and straightening wheel assembly (3), a bending wheel assembly (4), a horizontal clamping driven wheel assembly (5), and a horizontal pull-out transmission wheel assembly (6). The vertical clamping driven wheel assembly (1) is provided with a tube (7), which passes through the above-mentioned assemblies in sequence. The vertical pull-out transmission wheel assembly (2) includes a transmission shaft (2-1), a transmission wheel (2-2), a first bearing (2-3), a driven gear (2-4), a driving gear (2-5), a main transmission shaft (2-6), a secondary driving gear (2-7), a reducer (2-8), and a motor (2-9). The transmission wheel (2-2) is mounted on the transmission shaft (2-1) via the first bearing (2-3). The driven gear (2-4) is mounted on one end of the transmission shaft (2-1). The driving gear (2-5) is mounted on the main transmission shaft (2-6) and meshes with the driven gear (2-4). The secondary driving gear (2-7) is mounted on one end of the main transmission shaft (2-6) and is connected to the output end of the reducer (2-8). The reducer (2-8) is connected to the motor (2-9).

2. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The vertical clamping driven wheel assembly (1) includes a guide limiter (1-1), a first fixed shaft (1-2), a first driven wheel (1-3), a first slide groove (1-4), a first slider (1-5), a lug (1-6), an outer mounting flange (1-7), a first hydraulic cylinder (1-8), and a driven wheel mounting component (1-9). The first fixed shaft (1-2) is mounted on the driven wheel mounting component (1-9), and the first driven wheel (1-3) is sleeved on the first fixed shaft (1-2). The first slider (1-5) is connected to the first slider (1-5), which is slidably disposed in the first groove (1-4). The output end of the first hydraulic cylinder (1-8) is connected to the first slider (1-5). The first hydraulic cylinder (1-8) is mounted on the outer shell (8) of the device through a hydraulic cylinder fixing component. The guide limiting component (1-1) is disposed on one side of the first driven wheel (1-3). The outer mounting flange (1-7) is disposed on the outside of the outer shell (8) of the device. The hanging lug (1-6) is disposed on the outer shell (8) of the device.

3. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The positioning and straightening wheel assembly (3) includes a fixed straightening wheel (3-1), a sliding straightening wheel (3-2), a second hydraulic cylinder (3-3), a hydraulic cylinder fixing component (3-4), a second bearing (3-5), and a slide rail (3-6). The fixed straightening wheel (3-1) is fixedly installed inside the outer shell (8) of the device. The sliding straightening wheel (3-2) is mounted on the slider through the second bearing (3-5). The slider is slidably installed in the slide rail (3-6). The output end of the second hydraulic cylinder (3-3) is connected to the slider. The second hydraulic cylinder (3-3) is mounted on the outer shell (8) of the device through the hydraulic cylinder fixing component (3-4).

4. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The bending wheel assembly (4) includes a bending wheel (4-1), a third hydraulic cylinder (4-2), a second hydraulic cylinder fixing part (4-3), and a third bearing (4-4). The bending wheel (4-1) is mounted on a mounting shaft via the third bearing (4-4). The mounting shaft is connected to the output end of the third hydraulic cylinder (4-2). The third hydraulic cylinder (4-2) is mounted on the outer casing (8) of the device via the second hydraulic cylinder fixing part (4-3).

5. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The horizontal clamping driven wheel assembly (5) includes a second driven wheel (5-1), an outlet end guide limiter (5-2), an inlet end guide limiter (5-3), a second slide groove (5-4), a fourth hydraulic cylinder (5-5), a second fixed shaft (5-6), a second slider (5-7), and a hydraulic cylinder fixing member (5-8). The second fixed shaft (5-6) is mounted on the second slider (5-7), and the second driven wheel (5-1) is sleeved on the second fixed shaft (5-6). The second slider (5-1) is mounted on the second fixed shaft (5-6), and the second slider (5-2) is mounted on the second fixed shaft (5-7). 7) The fourth hydraulic cylinder (5-5) is slidably disposed in the second slide groove (5-4). The output end of the fourth hydraulic cylinder (5-5) is connected to the second slider (5-7). The fourth hydraulic cylinder (5-5) is mounted on the outer shell (8) of the device through the hydraulic cylinder fixing part three (5-8). The inlet end guide limit part (5-3) is disposed next to the second driven wheel (5-1) on the side close to the bending wheel assembly (4). The outlet end guide limit part (5-2) is disposed next to the second driven wheel (5-1) on the side away from the bending wheel assembly (4).

6. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The structure of the horizontal pull-out drive wheel assembly (6) is the same as that of the vertical pull-out drive wheel assembly (2).

7. The bending structure for vertical-to-horizontal conveying of nuclear power plant waste pipes according to claim 1, characterized in that: The vertical clamping driven wheel assembly (1), the vertical pull-out transmission wheel assembly (2), the horizontal clamping driven wheel assembly (5), and the horizontal pull-out transmission wheel assembly (6) are all provided in two sets, and the two sets are symmetrically distributed on both sides of the pipe fitting (7).