Water pipe connecting rod mechanism with cable protection

Abstract

The invention discloses a water pipe connecting rod mechanism with cable protection, and belongs to the field of water pipe connection, and the water pipe connecting rod mechanism comprises a connecting rod part, one end of the connecting rod part is connected with a long pipe assembly, the other end of the connecting rod part is connected with a three-way assembly, the long pipe assembly is used for introducing a water source and a cable, and the three-way assembly is used for dividing the water source and the cable into two parts for leading out; the connecting rod component comprises two connecting rod elbow assemblies and three joint assemblies; the water pipe and the cable pipe are integrated in the same mechanism through the water pipe connecting rod mechanism, the three problems of cleaning water source transportation, cable transportation and cable protection are solved at the same time, the structure is compact, the integration degree is high, the water pipe and a cable channel do not need to be independently arranged, the cable is located in the water pipe, limiting protection can be conducted on the cable, shaking of the cable is avoided, and the service life of the cable is prolonged. The safety and the reliability of cable transmission are ensured; the joint assembly can rotate flexibly, the mechanism is endowed with good flexibility, the posture can be flexibly adjusted along with the movement of the cleaning nozzle, and the flexibility is high.

Description

Technical Field

[0001] This invention relates to the field of water pipe connection technology, and more specifically, to a water pipe linkage mechanism with cable protection. Background Technology

[0002] As a core piece of equipment in thermal power plants, scale buildup on the heat exchange tubes of condensers directly affects turbine efficiency and can even lead to equipment failure. Condenser online cleaning systems, with their advantages of high cleaning efficiency and automated periodic cleaning capabilities, have become key equipment for solving the problem of scale buildup on heat exchange tubes.

[0003] During cleaning, water and cables need to be supplied to the upper and lower horizontal arms of the condenser online cleaning device. The cleaning nozzles of the online cleaning device need to continuously spray high-pressure water and move and spray in the water chamber environment. This requires the water pipes that transmit the water source to have sufficient rigidity to withstand the impact of water flow, as well as a certain degree of flexibility to adapt to the movement requirements. Traditional water pipes are mainly achieved through flexible hoses, which are difficult to meet this requirement of "both rigidity and flexibility". They are prone to shaking and tangling in the water chamber, affecting the normal operation of the equipment. In addition, the cables connected to them are in the complex water chamber environment, which not only makes transmission difficult, but also makes them prone to damage and leakage risks due to long-term impact, seriously threatening operational safety.

[0004] Therefore, it is necessary to provide a water pipe linkage mechanism with cable protection to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a water pipe linkage mechanism with cable protection to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A water pipe linkage mechanism with cable protection includes: A connecting rod component, one end of which is connected to a long pipe assembly and the other end of which is connected to a tee assembly. The long pipe assembly is used to introduce water and cables, and the tee assembly is used to divide the water and cables into two parts for outgoing. The connecting rod assembly includes two connecting rod elbow assemblies and three joint assemblies. The two connecting rod elbow assemblies are rotatably connected to each other through the joint assemblies. The other ends of the two connecting rod elbow assemblies are rotatably connected to each other through the joint assemblies, the long tube assembly, and the tee assembly, respectively.

[0007] Furthermore, the long pipe assembly includes a fixed water pipe, a front cable conduit, and a connecting flange. The front cable conduit is installed at the center of the fixed water pipe, and the end of the fixed water pipe is connected to the joint assembly via the connecting flange.

[0008] Furthermore, the connecting rod elbow assembly includes: A straight pipe with elbows at both ends, the ends of which are connected to the joint assembly via connecting flanges; The straight pipe and the elbow are respectively equipped with connecting rod straight cable conduit and connecting rod bent cable conduit.

[0009] Furthermore, the tee assembly includes: The pipe body has one inlet and two outlets, and the ends of the inlet and outlet are equipped with connecting flanges; The tube body contains a three-way cable conduit.

[0010] Furthermore, the outer wall of the pipe body is provided with a cable branch port, and the three-way cable pipe is connected to a branch pipe that is compatible with the cable branch port.

[0011] Furthermore, the joint assembly includes: The outer shell of the joint has an inner cylinder rotatably connected to its inner wall, and both the outer shell of the joint and the inner cylinder of the joint are provided with joint flanges at their outer ends. An external cable conduit is located at the center of the inner surface of the joint shell, and an internal cable conduit, which is rotatably connected to the external cable conduit, is located at the center of the inner surface of the joint cylinder.

[0012] Furthermore, a joint bearing is rotatably sleeved on the outside of the joint inner cylinder, and the joint bearing is located between the inner wall of the joint outer shell and the outer wall of the joint inner cylinder.

[0013] Furthermore, a housing bottom ring is provided at one end of the joint outer shell, and a thrust ring is provided at one end of the joint inner cylinder. The housing bottom ring and the thrust ring are respectively used to limit the two ends of the joint bearing.

[0014] Furthermore, a joint copper ring is sleeved on the outside of the joint inner cylinder, and the joint copper ring is located between the bottom ring of the housing and the side connecting flange of the joint inner cylinder.

[0015] Furthermore, the joint flanges are adapted to and connected to the corresponding connecting flanges, and the end face of the joint flanges is provided with a mounting groove, in which a sealing ring is installed.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention integrates water pipes and cable conduits into the same mechanism through a water pipe linkage mechanism, which solves three major problems at the same time: water source transportation, cable transportation, and cable protection. The structure is compact and highly integrated, eliminating the need for separate water pipe and cable channels, reducing the space occupied by separate arrangements, and simplifying the overall structure.

[0017] 2. The water pipes in the water pipe linkage mechanism of this invention are different from the currently used flexible hoses. They have high strength and can withstand the pressure of high-pressure cleaning water sources, ensuring the convenience and stability of water source transmission. The cable is located inside the water pipe, which can limit the cable and prevent it from shaking. This greatly reduces the impact and wear of high-pressure water flow and external environment on the cable, reduces the risk of cable damage and leakage, and ensures the safety and reliability of cable transmission.

[0018] 3. The connecting rod component of the present invention consists of two connecting rod elbow assemblies and three joint assemblies. The joint assemblies can rotate flexibly, giving the mechanism good flexibility and enabling it to flexibly adjust its posture in accordance with the movement of the cleaning nozzle. This ensures that the mechanism can rotate flexibly while having sufficient rigidity and strength, and can adapt to the movement of related equipment to meet different stroke and angle adjustments. It can also effectively resist the impact of water flow inside the water chamber, preventing the mechanism from shaking or getting tangled.

[0019] 4. The three-way component of this invention enables the water source and cable to be supplied in two separate ways, providing water source and cable connection for the upper and lower cross arms of the online cleaning device at the same time. This eliminates the need for multiple separate transmission mechanisms, simplifies the device structure, and reduces installation and maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the water pipe linkage mechanism of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the water pipe linkage mechanism of the present invention. Figure 3 This is a three-dimensional structural diagram of the joint assembly of the present invention; Figure 4 This is a front view structural diagram of the joint assembly of the present invention; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at point AA; Figure 6 This is a three-dimensional structural schematic diagram of the connecting rod elbow assembly of the present invention; Figure 7 This is a cross-sectional view of the connecting rod elbow assembly of the present invention. Figure 8 This is a three-dimensional structural diagram of the three-way component of the present invention.

[0021] Explanation of the labels in the diagram: 1. Long pipe assembly; 101. Fixed water pipe; 102. Lead cable conduit; 2. Connecting rod elbow assembly; 201. Straight pipe; 202. Elbow; 203. Connecting rod straight cable conduit; 204. Connecting rod bent cable conduit; 3. T-junction assembly; 301. Pipe body; 302. Inlet; 303. Outlet; 304. T-junction cable conduit; 305. Cable split; 306. Branch pipe; 4. Joint assembly; 401. Joint outer shell; 402. Joint inner cylinder; 403. Joint flange; 404. Joint outer cable conduit; 405. Joint inner cable conduit; 406. Joint bearing; 407. Shell bottom ring; 408. Thrust ring; 409. Joint copper ring; 5. Mounting groove; 6. Sealing ring; 7. Positioning plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-8 A water pipe linkage mechanism with cable protection, comprising: The connecting rod component has one end connected to the long pipe assembly 1 and the other end connected to the tee assembly 3. The long pipe assembly 1 is used to introduce water and cables, and the tee assembly 3 is used to divide the water and cables into two parts for outgoing. The connecting rod assembly includes two connecting rod elbow assemblies 2 and three joint assemblies 4. The two connecting rod elbow assemblies 2 are rotatably connected to each other through the joint assemblies 4. The other ends of the two connecting rod elbow assemblies 2 are rotatably connected to the joint assemblies 4, the long tube assembly 1, and the tee assembly 3, respectively.

[0024] When installing the water pipe linkage mechanism, the two linkage elbow assemblies 2 are rotatably connected through a joint assembly 4 to form an intermediate linkage section; then the long pipe assembly 1 is rotatably connected to the free end of one of the linkage elbow assemblies 2 through a joint assembly 4; then the tee assembly 3 is rotatably connected to the free end of the other linkage elbow assembly 2 through a joint assembly 4, thus completing the assembly of the water pipe linkage mechanism. In use, external cleaning water and cables are introduced through the long pipe assembly 1 and transmitted to the three-way assembly 3 via the water pipe linkage mechanism. The three-way assembly 3 divides the water source and cables into two parts, which are then led out to the target equipment, i.e., to the upper and lower horizontal arms of the cleaning device.

[0025] Among them, the main function of the long pipe assembly 1 is to fix and transport the water source and cable to the interior of the condenser water chamber; the main function of the connecting rod elbow assembly 2 is to ensure the movement stroke of the entire mechanism, and its length can be set and selected according to the movement stroke of the horizontal arm of the condenser online cleaning device; the main function of the tee assembly 3 is to split the water source and cable into two parts, supplying the upper and lower horizontal arms of the condenser online cleaning device respectively; the main function of the joint assembly 4 is to ensure the degree of freedom of the entire mechanism, so that the water pipe connecting rod mechanism can follow the movement of the horizontal arm.

[0026] It can be seen that by integrating water pipes and cable conduits into the same mechanism, that is, by using a double-pipe structure and water pipe linkage mechanism, the three major problems of cleaning water transportation, cable transportation and cable protection are solved at the same time. The structure is compact and highly integrated, eliminating the need for separate water pipe and cable channels, reducing the space occupied by separate arrangements, and simplifying the overall structure. In addition, each transmission water pipe in the water pipe linkage mechanism is different from the currently used flexible hose. It has high strength and can withstand the pressure of high-pressure cleaning water source, ensuring the convenience and stability of water source transmission. The cable is located inside the water pipe, which can limit the cable and prevent it from shaking. This greatly reduces the impact and wear of high-pressure water flow and external environment on the cable, reduces the risk of cable damage and leakage, and ensures the safety and reliability of cable transmission. Meanwhile, the connecting rod assembly consists of two connecting rod elbow assemblies 2 and three joint assemblies 4. The joint assemblies 4 can rotate flexibly, giving the mechanism good flexibility. It can flexibly adjust its posture to follow the movement of the cleaning nozzle. This ensures that the mechanism can rotate flexibly while having sufficient rigidity and strength. It can adapt to the movement of related equipment (such as the nozzle of the condenser online cleaning device), so that the mechanism can adapt to the movement requirements of the equipment and meet different stroke and angle adjustments. It is highly flexible. It can also effectively resist the impact of water flow inside the water chamber and prevent the mechanism from shaking or getting tangled.

[0027] For preferred options, please refer to [link / reference]. Figure 1-2 The long pipe assembly 1 includes a fixed water pipe 101, a front cable conduit 102, and a connecting flange. The front cable conduit 102 is installed at the center inside the fixed water pipe 101, and the end of the fixed water pipe 101 is connected to the joint assembly 4 through the connecting flange.

[0028] Specifically, the lead cable conduit 102 is installed at the center of the fixed water pipe 101 through the positioning plate 7 to ensure that the two are coaxial. At least three positioning plates 7 are provided to ensure stability. The long pipe assembly 1 and the joint assembly 4 are aligned and fastened through the connecting flange at the end of the fixed water pipe 101. Water is introduced into the fixed water pipe 101 and the cable is inserted into the lead cable conduit 102.

[0029] By using the front cable conduit 102, direct contact between the cable and the inner wall of the fixed water pipe 101 can be avoided, thus isolating most of the impact and friction damage from the water flow, reducing cable wear and leakage risks, and ensuring the safety of cable transmission.

[0030] For preferred options, please refer to [link / reference]. Figure 2 and Figure 6-7 The connecting rod elbow assembly 2 includes: Straight pipe 201, both ends of which are connected to elbows 202, the ends of elbows 202 are connected to joint assembly 4 through connecting flanges; The straight pipe 201 and the elbow 202 are respectively equipped with a connecting rod straight cable pipe 203 and a connecting rod bent cable pipe 204.

[0031] Specifically, the elbows 202 are fixed to both ends of the straight pipe 201 to form a steerable water pipe channel; the connecting rod straight cable conduit 203 is installed in the straight pipe 201 through the positioning plate 7, and the connecting rod bent cable conduit 204 is installed in the elbow 202 through the positioning plate 7, to ensure that the straight cable conduit 203 and the straight pipe 201 are compatible and coaxial, and to ensure that the connecting rod bent cable conduit 204 and the elbow 202 are compatible and coaxial; Elbow 202 meets the steering requirements of the mechanism and works with joint component 4 to achieve multi-directional movement, improving the flexibility of the mechanism; the cable conduit adapts to the shape of the water pipe to avoid cable exposure at the bend.

[0032] For preferred options, please refer to [link / reference]. Figure 1-2 and Figure 8 The tee component 3 includes: The pipe body 301 is provided with one inlet 302 and two outlets 303, and the ends of the inlet 302 and the outlets 303 are all equipped with connecting flanges. A three-way cable conduit 304 is installed inside the conduit body 301.

[0033] Specifically, the three-way cable conduit 304 is fixed inside the pipe body 301 by the positioning plate 7, ensuring that it is coaxial with the inlet 302 and the outlet 303. It is connected to the joint assembly 4 through the connecting flange of the inlet 302, and connected to the target equipment (the upper and lower cross arms of the condenser online cleaning device) through the connecting flanges of the two outlets 303. It can realize the synchronous diversion of water source and cable without the need for additional diversion device, simplifying the system design. It can supply water source and cable to two devices at the same time, improving the adaptability of the mechanism to application scenarios.

[0034] In this embodiment, preferably, please refer to [reference needed]. Figure 8 The outer wall of the pipe body 301 is provided with a cable split port 305, and the three-way cable pipe 304 is connected to a branch pipe 306 that is compatible with the cable split port 305.

[0035] This design connects the branch pipe 306, which is compatible with the cable branch port 305, to the three-way cable conduit 304, ensuring a sealed connection between the branch pipe 306 and the cable branch port 305. This allows another cable to be branched out through the branch pipe 306, realizing the function of splitting the cable into two. Cable branching can be achieved without damaging the main cable conduit structure, adapting to the local power supply and signal transmission needs of multiple devices. It also facilitates subsequent cable maintenance and expansion, reducing maintenance costs.

[0036] For preferred options, please refer to [link / reference]. Figure 1-5 Joint component 4 includes: The outer shell of the joint 401 has an inner cylinder 402 rotatably connected to its inner wall, and both the outer ends of the outer shell of the joint 401 and the inner cylinder of the joint 402 are provided with joint flanges 403. An external cable tube 404 is located at the center of the inner part of the joint outer shell 401, and an internal cable tube 405, which is rotatably connected to the external cable tube 404, is located at the center of the inner part of the joint inner cylinder 402.

[0037] Specifically, the inner joint cylinder 402 is rotatably connected to the inner wall of the outer joint housing 401, ensuring that the two can rotate relative to each other. The outer joint cable tube 404 is fixed to the inner axis of the outer joint housing 401 by the positioning plate 7. The inner joint cable tube 405 is fixed to the inner axis of the inner joint cylinder 402 by the positioning plate 7, and the two are rotatably connected. The joint assembly 4 is fastened to the connecting flange of the adjacent assembly by the joint flange 403.

[0038] The joint outer shell 401 is rotatably connected to the joint inner cylinder 402, and the joint inner cable tube 405 and the joint outer cable tube 404 rotate in coordination, providing the mechanism with flexible rotational freedom to adapt to the equipment's motion trajectory. This allows for flexible rotation of the mechanism, enabling it to quickly adapt to the movement requirements of the online cleaning device's cross arm and improving the mechanism's mobility. The synchronous rotation of the joint outer cable tube 404 and the joint inner cable tube 405 ensures that the cables do not tangle or wear during rotation, providing good protection for the cables.

[0039] For preferred options, please refer to [link / reference]. Figure 5 The joint inner cylinder 402 is externally rotatably fitted with a joint bearing 406, which is located between the inner wall of the joint outer shell 401 and the outer wall of the joint inner cylinder 402.

[0040] With this design, the inner cylinder 402 of the joint, which is fitted with the spherical bearing 406, is installed into the outer shell 401 of the joint, so that the spherical bearing 406 is located between the inner wall of the outer shell and the outer wall of the inner cylinder.

[0041] The spherical bearing 406 reduces rotational friction between the spherical outer shell 401 and the spherical inner cylinder 402, improving the flexibility and response speed of the mechanism. The spherical bearing 406 bears radial loads, avoiding local wear caused by direct contact between the spherical outer shell 401 and the spherical inner cylinder 402, thus extending the service life of the components. It also ensures the coaxiality of the relative rotation of the spherical outer shell 401 and the spherical inner cylinder 402, preventing cable misalignment or water leakage caused by movement deviation.

[0042] In this embodiment, preferably, please refer to [reference needed]. Figure 5 One end of the joint outer shell 401 is provided with a shell bottom ring 407, and one end of the joint inner cylinder 402 is provided with a thrust ring 408. The shell bottom ring 407 and the thrust ring 408 are respectively used to limit the two ends of the joint bearing 406.

[0043] This design, through the limiting of the housing bottom ring 407 and the thrust ring 408, can prevent the spherical bearing 406 from axially displacing during rotation, ensuring the structural stability of the joint assembly 4; it can also buffer the axial impact force during rotation, preventing the spherical bearing 406 from loosening or being damaged, and improving the impact resistance of the mechanism. The thrust ring 408 can be fixed to the inner cylinder 402 of the joint with bolts, which facilitates subsequent disassembly, replacement and maintenance.

[0044] In this embodiment, preferably, please refer to [reference needed]. Figure 5 The joint inner cylinder 402 is fitted with a joint copper ring 409 on the outside, and the joint copper ring 409 is located between the bottom ring 407 of the housing and the side connecting flange of the joint inner cylinder 402.

[0045] This design prevents the joint copper ring 409 from directly contacting the joint outer shell 401, the joint inner cylinder 402, and the joint flange 403, thus preventing wear or jamming during relative rotation. The joint copper ring 409 also plays an auxiliary positioning role, ensuring the coaxiality of the joint inner cylinder 402 and the joint outer shell 401, and improving rotational stability. The joint copper ring 409 has good wear resistance and corrosion resistance, adapts to complex environments such as water chambers, and extends the service life of the joint assembly 4.

[0046] The various water pipes and cable conduits of this invention can be made of stainless steel, which can effectively resist the impact of water flow inside the water chamber and has sufficient anti-rust and anti-corrosion properties.

[0047] In this embodiment, preferably, please refer to [reference needed]. Figure 2-5 The joint flange 403 is adapted to connect with the corresponding connecting flange. The end face of the joint flange 403 is provided with a mounting groove 5, and a sealing ring 6 is installed in the mounting groove 5.

[0048] This design, by embedding the sealing ring 6 into the mounting groove 5, ensures that the sealing ring 6 fits the groove and does not fall off. It aligns the joint flange 403 with the connecting flange of the adjacent component, and achieves a sealed connection with the gasket and fastening bolts. The sealing ring 6 fills the mating gap, effectively preventing water leakage and external moisture infiltration, ensuring media transmission and cable safety. In addition, the sealing ring 6 has a certain degree of elasticity, which can buffer the pressure impact during flange connection and reduce the impact of vibration on the connection area.

[0049] It should be noted that after the cable conduits at each of the above connection points (i.e., between the front cable conduit 102 and the external cable conduit 404, between the internal cable conduit 405 and the connecting rod bend cable conduit 204, between the bend cable conduit 204 and the external cable conduit 404, and between the tee cable conduit 304 and the internal cable conduit 405), there are small gaps between the cable conduits. The cables are waterproof, and the main function of each cable conduit is to prevent the cables from being impacted and shaken by high-pressure water. It also reduces the impact and wear of high-pressure water flow and the external environment on the cables, reduces the risk of cable damage and leakage, and ensures the safety and reliability of cable transmission.

[0050] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A water pipe linkage mechanism with cable protection, characterized in that, include: The connecting rod component has one end connected to the long pipe assembly (1) and the other end connected to the tee assembly (3). The long pipe assembly (1) is used to introduce water and cables, and the tee assembly (3) is used to divide the water and cables into two parts for outgoing. The connecting rod assembly includes two connecting rod elbow assemblies (2) and three joint assemblies (4). The two connecting rod elbow assemblies (2) are rotatably connected to each other through the joint assemblies (4). The other ends of the two connecting rod elbow assemblies (2) are rotatably connected to each other through the joint assemblies (4), the long tube assembly (1), and the tee assembly (3), respectively.

2. The water pipe linkage mechanism with cable protection according to claim 1, characterized in that, The long pipe assembly (1) includes a fixed water pipe (101), a front cable conduit (102) and a connecting flange. The front cable conduit (102) is installed at the center of the fixed water pipe (101), and the end of the fixed water pipe (101) is connected to the joint assembly (4) through the connecting flange.

3. A water pipe linkage mechanism with cable protection according to claim 2, characterized in that, The connecting rod elbow assembly (2) includes: A straight pipe (201) has elbows (202) connected to both ends, and the ends of the elbows (202) are connected to the joint assembly (4) through connecting flanges; The straight pipe (201) and the elbow (202) are respectively equipped with a connecting rod straight cable pipe (203) and a connecting rod bent cable pipe (204).

4. A water pipe linkage mechanism with cable protection according to claim 3, characterized in that, The tee assembly (3) includes: The pipe body (301) is provided with an inlet (302) and two outlets (303), and the ends of the inlet (302) and the outlets (303) are all fitted with connecting flanges; A three-way cable conduit (304) is installed inside the pipe body (301).

5. A water pipe linkage mechanism with cable protection according to claim 4, characterized in that, The outer wall of the tube body (301) is provided with a cable branch port (305), and the three-way cable tube (304) is connected to a branch pipe (306) that is compatible with the cable branch port (305).

6. A water pipe linkage mechanism with cable protection according to claim 5, characterized in that, The joint assembly (4) includes: The outer shell of the joint (401) has an inner cylinder (402) rotatably connected to its inner wall, and the outer ends of both the outer shell of the joint (401) and the inner cylinder of the joint (402) are provided with joint flanges (403). An external cable tube (404) is disposed at the center of the inner part of the joint shell (401), and an internal cable tube (405) is disposed at the center of the inner part of the joint cylinder (402) and is rotatably connected to the external cable tube (404).

7. A water pipe linkage mechanism with cable protection according to claim 6, characterized in that, The joint inner cylinder (402) is rotatably fitted with a joint bearing (406), which is located between the inner wall of the joint outer shell (401) and the outer wall of the joint inner cylinder (402).

8. A water pipe linkage mechanism with cable protection according to claim 7, characterized in that, One end of the joint outer shell (401) is provided with a shell bottom ring (407), and one end of the joint inner cylinder (402) is provided with a thrust ring (408). The shell bottom ring (407) and the thrust ring (408) are respectively used to limit the two ends of the joint bearing (406).

9. A water pipe linkage mechanism with cable protection according to claim 8, characterized in that, The joint inner cylinder (402) is fitted with a joint copper ring (409) on the outside, and the joint copper ring (409) is located between the bottom ring (407) of the housing and the side connecting flange of the joint inner cylinder (402).

10. A water pipe linkage mechanism with cable protection according to claim 6, characterized in that, The joint flange (403) is adapted to and connected to the corresponding connecting flange. The end face of the joint flange (403) is provided with a mounting groove (5), and a sealing ring (6) is installed in the mounting groove (5).

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