Coaxial pay-off device

By combining an omnidirectional prism with a total station and integrating the automated design of the drive motor and controller, precise positioning and secure data storage of the coaxial wire laying device are achieved. This solves the problems of insufficient accuracy and flexibility and data management in traditional wire laying devices, thereby improving wire laying efficiency and data security.

CN120869075APending Publication Date: 2025-10-31SHENZHEN OVERSEAS DECORATION ENG
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511324416.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Traditional coaxial wire feeding devices are deficient in terms of precise positioning and stable tracking, adaptability and flexibility, and wire feeding data records are easily lost and tampered with, affecting wire feeding accuracy and efficiency.

Method used

By using an omnidirectional prism in conjunction with a total station, a linear actuator driven by a drive motor is used to move the drawing tool for precise positioning and marking. The controller is used for encrypted data storage, achieving automated and modular design.

Benefits of technology

It improves the accuracy and efficiency of wire laying, enhances the adaptability and flexibility of the device, avoids data loss and tampering, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120869075A_ABST
    Figure CN120869075A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of engineering surveying and paying-off, and particularly relates to a coaxial paying-off device which comprises a mounting seat and a fixing seat fixedly mounted at the top of the mounting seat, and a fixing block used for fixing a mounting device body is arranged on one side of the fixing seat; the device main body further comprises a driving motor, a second connector arranged at the top of the driving motor is used for fixedly installing an omnidirectional prism, and the omnidirectional prism is used for tracking and obtaining accurate positioning of the total station; wherein the driving motor drives the linear push rod to drive the first connector to vertically move, so that the first connector pushes the drawing tool to vertically move, and the drawing tool is used for drawing a graph on the paying-off point position. According to the pay-off device, more accurate, efficient and flexible pay-off operation can be achieved by simplifying the structure and improving the automation degree and the intelligent level, meanwhile, pay-off point positions can be accurately positioned and marked through a drawing tool, meanwhile, pay-off data can be encrypted and stored under the action of a controller, and the pay-off efficiency is improved. And manual change and loss of the pay-off data are avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of engineering surveying and setting out technology, and specifically relates to a coaxial setting out device. Background Technology

[0002] Currently, in the field of engineering surveying and setting out, setting-out devices are indispensable tools. Traditional setting-out devices mostly employ mechanical operation, relying on manual adjustment and calibration, and their accuracy and efficiency are limited by the operator's skill level. In recent years, with the development of automation and intelligent technologies, some modern setting-out devices have begun to incorporate advanced technologies such as motor drives and sensor feedback to achieve more precise and efficient setting-out operations. However, these devices are often complex in structure and expensive, and their flexibility and adaptability still need to be improved in certain specific application scenarios, such as complex terrain or confined spaces.

[0003] Problems with existing technology: 1. Traditional coaxial wire feeding devices cannot ensure accurate positioning and stable tracking during the wire feeding process, nor can they improve the adaptability and flexibility of the device in different application scenarios.

[0004] 2. Traditional wire laying devices cannot accurately locate and mark the wire laying points after the wire is laid out, which affects the wire laying accuracy and greatly reduces the efficiency of wire laying.

[0005] 3. Meanwhile, traditional wire laying data is usually recorded manually by operators. This recording method is not convenient for subsequent wire laying data retrieval, and the wire laying data is easily modified or lost, which in turn affects the use effect of the wire laying device. Summary of the Invention

[0006] The purpose of this invention is to provide a coaxial wire laying device that can achieve more accurate, efficient and flexible wire laying operations by simplifying the structure and improving the level of automation and intelligence. At the same time, the wire laying points can be accurately located and marked by drawing tools, and the wire laying data can be encrypted and stored under the control of the controller to prevent the wire laying data from being modified or lost by humans.

[0007] The specific technical solution adopted by this invention is as follows: A coaxial cable feeding device includes a mounting base and a fixing base fixedly mounted on the top of the mounting base, wherein a fixing block for fixing the main body of the mounting device is provided on one side of the fixing base. The main body of the device also includes a drive motor, and a second connector on the top of the drive motor is used to fix and install an omnidirectional prism. The omnidirectional prism is used by the total station to track and obtain accurate positioning. The drive motor drives the linear push rod to move the first connector vertically, which in turn pushes the drawing tool vertically, and the drawing tool draws the pattern at the line points.

[0008] The second connector has a power drive line interface for the drive motor on one side, and a limit switch is fixedly installed on one side of the linear push rod. The limit switch is used to limit and stop the drive motor driving the linear push rod.

[0009] The first connector has a groove inside, and the output shaft of the linear push rod is inserted into the first connector through the groove. The linear push rod and the first connector are fixedly installed by a fixing pin.

[0010] The drawing tool includes a mounting part and a drawing part. The top of the drawing part is fixedly mounted to the mounting part via a threaded joint, and the mounting part is fixedly mounted to a first connector.

[0011] The mounting part includes a housing and a top rod. A pressure sensor and a fixing plate are fixedly installed inside the housing. A first spring abutting the bottom of the fixing plate is used to push the connecting seat to move vertically, so that the connecting seat drives the top rod fixedly installed inside to move synchronously.

[0012] The top of the push rod abuts against the pressure sensor, the push rod is slidably installed inside the fixed plate, and the push rod is slidably installed with the drawing part.

[0013] The drawing part includes a cylindrical body, and a base plate is fixedly installed inside the cylindrical body by a second spring. The top rod pushes the base plate to move vertically, and the base plate pushes the flipping assembly to move along the limiting slide groove, so that the flipping assembly drives the stamp seat to rotate.

[0014] The flipping assembly includes a connecting plate, and a torsion spring fixedly installed inside the connecting plate is used to drive the connecting rod to rotate and reset. One end of the connecting rod is fixedly installed with a guide rod via a connecting arm.

[0015] The flipping assembly is slidably installed on the guide rod and the limiting groove. The guide rod drives the connecting arm and the connecting rod to rotate, causing the connecting rod to pull one end of the torsion spring to retract, and the other end of the connecting rod is fixedly installed on the stamp holder.

[0016] A controller is also provided on one side of the mounting base. The controller has a built-in communication module, a data processing module, an overload protection module, and a blockchain module. The controller also includes external input and output terminals. The communication module is used to receive external input timestamps, coordinates and operator information for laying out lines, and automatically encrypts and stores them through the data processing module to form an immutable engineering log. After that, it is sent to the blockchain module to generate corresponding hash values ​​and digital signatures, and permanently stored after being verified through consensus. The overload protection module of the controller is used to receive the pressure value of the pressure sensor and control the start and stop of the drive motor through the controller. The controller is electrically connected to the pressure sensor and the drive motor.

[0017] The technical effects achieved by this invention are as follows: This invention, by introducing the combined use of an omnidirectional prism and a total station, achieves precise positioning and tracking of layout points, effectively improving layout accuracy. Simultaneously, by adopting a modular design for the main body of the device, the second connector, the omnidirectional prism, and the drawing tool, with tight connections and a simple structure, manufacturing costs and maintenance difficulties are reduced. Furthermore, the drive motor drives the linear push rod and the first connector to move the drawing tool linearly, enabling the drawing tool to locate and mark the layout points, thus automating the layout process and improving work efficiency. Moreover, the first connector allows for flexible adjustment and replacement of the drawing tool, enhancing the adaptability and flexibility of the device.

[0018] This invention, through the action of the main body of the device, can push the drawing tool to move vertically, thereby causing the first connector to push the mounting part to bring the drawing part to abut against the ground. The mounting part then continues to move downward, and through the fixing plate, it drives the top rod to move downward. The top rod then pushes the bottom plate to move the flipping assembly and the stamp seat downward synchronously. Since the flipping assembly can move along the limiting slide groove during the downward movement, it can push the guide rod through the limiting slide groove to drive the connecting arm to rotate, causing the connecting rod to drive the stamp seat to rotate. This causes the stamp seat to flip, and the stamp installed on the surface of the stamp seat accurately positions and marks the line-laying points, thereby improving the efficiency of line laying. Furthermore, when the main body of the device drives the drawing tool to reset, it can drive the connecting rod and the stamp seat to flip and reset through the action of the torsion spring, thereby preventing the stamp from being damaged by downward movement.

[0019] This invention utilizes a controller installed on one side of the fixed base. The controller is connected to a pressure sensor and a drive motor inside the mounting unit. The force applied to the stamp is monitored by the drive motor. In case of overload, the controller can stop the drive motor to prevent damage. The controller also has an input interface and a communication module, which can record the wire laying data internally. After being encrypted by the data processing module, the corresponding hash value and unique digital signature are generated and stored by the data chain module. This method is more efficient than manual recording and is less prone to data corruption, loss, and tampering. Attached Figure Description

[0020] Figure 1 This is a perspective view of the overall installation structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the device in this invention. Figure 3 This is a schematic diagram of the disassembled structure of the first connector in this invention; Figure 4 This is a schematic diagram of the drawing tool installation structure in this invention; Figure 5 This is a schematic diagram of the installation structure in this invention; Figure 6 This is a schematic diagram of the installation structure of the drawing part in this invention; Figure 7 This is a schematic diagram of the threaded connector installation structure in this invention; Figure 8 This is a schematic diagram of the cylindrical structure in this invention; Figure 9 This is the present invention. Figure 8 Enlarged schematic diagram of the structure at point A in the middle; Figure 10 This is a schematic diagram of the connecting plate structure in this invention; Figure 11 This is a schematic diagram of the external structure of the controller in this invention; Figure 12 This is a schematic diagram of the built-in structure of the controller in this invention; Figure 13 This is a flowchart of the data link module in this invention.

[0021] The attached diagram lists the components represented by each number as follows: 1. Mounting base; 2. Fixing base; 3. Fixing block; 4. Main body of the device; 41. Drive motor; 42. Linear push rod; 43. First connector; 44. Limit switch; 5. Second connector; 6. Omnidirectional prism; 7. Controller; 8. Drawing tool; 81. Mounting part; 811. Housing; 812. Pressure sensor; 813. Connecting base; 814. Top rod; 815. First spring; 816. Fixing plate; 82. Drawing part; 821. Cylinder; 822. Second spring; 823. Base plate; 824. Limiting groove; 83. Threaded joint; 84. Flipping assembly; 841. Connecting plate; 842. Torsion spring; 843. Connecting rod; 844. Connecting arm; 845. Guide rod; 85. Stamp holder. Detailed Implementation

[0022] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0023] like Figure 1-13As shown, a coaxial cable feeding device includes a mounting base 1 and a fixing base 2 fixedly mounted on the top of the mounting base 1. A fixing block 3 for fixing the main body 4 of the device is provided on one side of the fixing base 2.

[0024] Specifically, the fixing block 3 has a T-shaped structure and a through bolt inside the fixing block 3. The fixing block 3 is fixedly installed with the fixing seat 2 by the bolt. The cooperation between the fixing block 3 and the fixing seat 2 can clamp and fix the linear push rod 42. Therefore, during use, the height of the drawing tool 8 off the ground can be adjusted synchronously by adjusting the installation height of the linear push rod 42.

[0025] Furthermore, the fixing seat 2 is fixedly installed to the mounting seat 1 by using a bolt and nut assembly, and the surface of the mounting seat 1 is arranged with multiple through holes. Multiple device bodies 4 can be installed on the surface of the mounting seat 1 through the fixing seat 2, thereby enabling multi-point coordinated and precise positioning and laying of lines through multiple device bodies 4.

[0026] Please refer to the appendix for details. Figures 1 to 4 The main body 4 of the device also includes a drive motor 41. The second connector 5 on the top of the drive motor 41 is used to fix the omnidirectional prism 6. The omnidirectional prism 6 can be used by the total station to track and obtain accurate positioning. Since the omnidirectional prism 6 has a 360-degree reflection characteristic, the omnidirectional prism 6 can cooperate with the total station to accurately position the direction without special adjustment of the prism's direction.

[0027] It should be noted that since the drive motor 41 can drive the linear push rod 42 to drive the first connector 43 to move vertically, thereby causing the first connector 43 to push the drawing tool 8 to move vertically, after the line is laid out by the linkage between the total station and the omnidirectional prism 6, the drawing tool 8 can be used to draw the line laying point in conjunction with the drive motor 41, the linear push rod 42 and the first connector 43, thereby facilitating the positioning of the line laying point.

[0028] According to the above structure, since the second connector 5 is fixedly installed on the top of the drive motor 41, and the power drive line interface of the drive motor 41 is provided on one side of the second connector 5, the drive motor 41 can be powered by an external power line. At the same time, the controller 7 installed on one side of the fixed base 2 is electrically connected to the drive motor 41, so the start and stop of the drive motor 41 can also be controlled by the controller 7, making the operation and use of the coaxial wire feeding device simpler and more convenient.

[0029] Secondly, since the linear push rod 42 is composed of a large tube and a small tube, and the drive motor 41 can convert the DC motor into linear push rod motion to make the small tube move, and a limit switch 44 is fixedly installed on one side of the large tube of the linear push rod 42, while a contact is provided on one side of the small tube, the limit switch 44 and the contact can cooperate to enable the drive motor 41 to drive the linear push rod 42 to have a limit stop function during the movement. The maximum stroke of the linear push rod 42 can reach 50mm, and the maximum thrust of the linear push rod 42 can reach 20N.

[0030] As can be further explained, a groove is provided inside the first connector 43, and the output shaft of the two linear push rods 42 is inserted into the first connector 43 through the groove. The linear push rods 42 and the first connector 43 are fixedly installed by a fixing pin. Therefore, the linear push rods 42 and the first connector 43 can be separated by removing the fixing pin, so that the drawing tool 8 can be easily replaced, making the device more adaptable and flexible.

[0031] It is worth noting that during the use of the device, you only need to operate the total station to aim at the omnidirectional prism 6, use the total station to measure the actual coordinates of the prism position, and compare them with the design coordinates. If there is a deviation, move the device according to the correction value provided by the total station until it reaches the position required by the design. This will enable efficient and accurate line laying. In addition, the surface of the omnidirectional prism 6 can also be coated with hydrophobic and oleophobic materials to prevent dust and rain from blocking the laser signal.

[0032] See attached document Figures 4 to 10 The drawing tool 8 includes a drawing part 82 that is slidably installed inside the mounting part 81, and the mounting part 81 is fixedly installed with the first connector 43. The top of the drawing part 82 is fixedly installed with the mounting part 81 through a threaded joint 83. At the same time, the drawing part 82 is provided with a flipping component 84 for flipping the stamp holder 85. Under the action of the first connector 43, the pushing force of the linear push rod 42 can be transmitted to the mounting part 81. The mounting part 81 drives the drawing part 82 to move, so that the line positioning can be accurately positioned and marked.

[0033] According to the above structure, the mounting part 81 includes a pressure sensor 812 and a fixing plate 816 fixedly installed inside the housing 811. The first spring 815, which is abutted at the bottom of the fixing plate 816, has a specific elastic potential energy, which can be used to push the connecting seat 813 to move vertically. This allows the connecting seat 813 to drive the top rod 814 fixedly installed inside it to move synchronously. The top rod 814 passes through the drawing part 82 and pushes the base plate 823 to drive the flipping assembly 84 to move vertically.

[0034] It should be noted that the top of the push rod 814 abuts against the pressure sensor 812. Therefore, when drawing the pattern at the line drawing point, it can avoid applying excessive force to the main body 4 of the device, which could cause overload damage to the structure of the drawing tool 8. Secondly, since the fixed plate 816 is fixedly installed with the outer shell 811, and the push rod 814 is slidably installed inside the fixed plate 816, when the drawing tool 8 is drawing the pattern, the first spring 815 can be stretched by the connecting seat 813 in conjunction with the fixed plate 816. Therefore, after the pattern is drawn, the connecting seat 813 and the drawing part 82 can be reset by the reset of the first spring 815.

[0035] Please refer to the appendix for details. Figure 8 and Figure 9 The drawing part 82 includes a second spring 822 for fixing the mounting base plate 823. The top of the second spring 822 abuts against the cylinder 821. The base plate 823 is disc-shaped and is slidably mounted with the cylinder 821. Therefore, during the movement of the mounting part 81, the base plate 823 can be pushed vertically by the push rod 814, thereby causing the base plate 823 to push the flipping assembly 84 to move along the limiting slide groove 824. Due to the specific trajectory design of the limiting slide groove 824, the flipping assembly 84 can drive the stamp seat 85 to rotate.

[0036] It is worth noting that the flipping assembly 84 includes a connecting plate 841 disposed at the bottom of the base plate 823, and a torsion spring 842 is fixedly installed inside the connecting plate 841. The two ends of the torsion spring 842 are fixedly installed with the connecting rod 843 and the connecting plate 841 respectively. At the same time, the torsion spring 842 has a certain elastic potential energy, which enables it to drive the connecting rod 843 to reset. Two sets of flipping assemblies 84 are provided and arranged in a mirror image on both sides of the bottom of the base plate 823. A stamp holder 85 is fixedly installed between the connecting rods 843 of the two sets of flipping assemblies 84. Therefore, the stamp holder 85 can be driven to move synchronously by the flipping assembly 84.

[0037] More specifically, connecting arms 844 and stamp holders 85 are fixedly installed at both ends of the connecting rod 843, respectively. The guide rod 845 is slidably installed with the drawing part 82 through the limiting slide groove 824. When the top rod 814 pushes the limiting slide groove 824 to move vertically, the guide rod 845 can move along the trajectory of the limiting slide groove 824 and drive the connecting rod 843 to rotate through the cooperation of the connecting arms 844.

[0038] According to the above structure, when the connecting rod 843 rotates inside the connecting plate 841, it can drive one end of the torsion spring 842 to retract inward. When the drawing is completed and the drawing tool 8 is reset, the torsion spring 842 can drive the connecting rod 843 to reverse. Since the other end of the connecting rod 843 is fixedly installed with the stamp holder 85, the stamp holder 85 can be flipped and reset.

[0039] As further explained, the stamp holder 85 consists of two parts: a stamp and a placement base. The stamp can be installed and fixed to the placement base by a rotating snap-fit ​​mechanism, allowing for easy disassembly and replacement of the stamp holder 85 after the drawing tool 8 is disassembled, thus avoiding any impact on the efficiency of line drawing. At the same time, an inkpad box is installed synchronously with the bottom of the base plate 823, so that after each use, the stamp holder 85 can be reset and the stamp can be placed inside the inkpad box, thereby ensuring the clarity of subsequent drawing and ensuring the accuracy of line drawing.

[0040] See attached document Figure 1 , Figure 5 and appendix Figures 11 to 13 The fixed base 2 is also equipped with a controller 7 on one side. The controller 7 has a built-in communication module, data processing module, overload protection module and blockchain module. The controller 7 also includes external input and output terminals. The external input and output terminals can be composed of two methods. One method is to reserve a specific interface on the surface of the controller 7, and the other method is to realize wireless communication. The communication module integrates LoRa / Wi-Fi 6, enabling remote communication with cloud servers or mobile devices. This allows the communication module to receive external input such as the laying timestamp, coordinates, and operator information. Additionally, a touch screen is provided on the surface of the controller 7, and the built-in system of the controller 7 supports the input of numbers, symbols, and text, allowing the controller 7 to also manually input the laying timestamp, coordinates, and operator information.

[0041] It is worth noting that the controller 7 also has a data processing module, which can automatically encrypt and store information such as the laying timestamp, coordinates and operators that are manually or wirelessly input, and form an unalterable engineering log. The encrypted engineering log can effectively avoid the risk of subsequent human tampering, and also avoid the problem of loss of manually written engineering information.

[0042] Additionally, the controller 7 can also synchronize with an app on a mobile device, allowing the app to send cable laying information to the controller 7. This enables multiple coaxial cable laying devices to work collaboratively via a local area network and automatically allocate task areas. Furthermore, the surface of the controller 7 can provide multiple standardized electrical and mechanical structures, facilitating the addition of new functional modules in the future, thereby enhancing the functionality and intelligence of the device.

[0043] It should be noted that the encrypted engineering logs can be sent to the blockchain module through the communication module. A corresponding hash value and digital signature are generated, and the digital signature is unique. Specifically, it can be composed of the first letter of the operator's name, the year, month, day, and the laying sequence number. After being verified by the consensus algorithm, it is permanently stored.

[0044] Of course, an external mechanical interface for auditing can also be reserved on one side of the controller 7, so that when the auditor enters the digital signature, the project log can be retrieved, making it easy to view information such as the laying-out timestamp, coordinates and operators.

[0045] In addition, the controller 7 is equipped with an overload protection module, and the process protection module is connected to the pressure sensor 812 and the drive motor 41. The overload protection module of the controller 7 can receive the pressure value of the pressure sensor 812. When the pressure value exceeds the set threshold, the controller 7 can control the drive motor 41 to stop running, so that the drawing tool 8 can avoid damage to the drawing tool 8 due to excessive pressure when drawing graphics.

[0046] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A coaxial wire feeding device, characterized in that, include: Mounting base (1) and fixing base (2) fixedly mounted on the top of the mounting base (1), wherein a fixing block (3) for fixing the main body (4) of the mounting device is provided on one side of the fixing base (2). The main body (4) of the device also includes a drive motor (41), and a second connector (5) provided on the top of the drive motor (41) is used to fix and install an omnidirectional prism (6). The omnidirectional prism (6) is used for total station tracking to obtain accurate positioning. The drive motor (41) drives the linear push rod (42) to move the first connector (43) vertically, so that the first connector (43) pushes the drawing tool (8) to move vertically, and the drawing tool (8) draws the pattern of the line position.

2. The coaxial wire feeding device according to claim 1, characterized in that: The second connector (5) has a power drive line interface for the drive motor (41) on one side, and a limit switch (44) is fixedly installed on one side of the linear push rod (42). The limit switch (44) causes the drive motor (41) to drive the linear push rod (42) to stop at the limit position.

3. The coaxial wire feeding device according to claim 1, characterized in that: The first connector (43) has a groove inside, and the output shaft of the linear push rod (42) is inserted into the first connector (43) through the groove. The linear push rod (42) and the first connector (43) are fixedly installed by a fixing pin.

4. The coaxial wire feeding device according to claim 1, characterized in that: The drawing tool (8) includes a mounting part (81) and a drawing part (82). The top of the drawing part (82) is fixedly mounted to the mounting part (81) via a threaded joint (83). The mounting part (81) is fixedly mounted to the first connector (43).

5. A coaxial wire feeding device according to claim 4, characterized in that: The mounting part (81) includes a housing (811) and a top rod (814). A pressure sensor (812) and a fixing plate (816) are fixedly installed inside the housing (811). A first spring (815) abutting the bottom of the fixing plate (816) is used to push the connecting seat (813) to move vertically, so that the connecting seat (813) drives the top rod (814) fixedly installed inside to move synchronously.

6. A coaxial wire feeding device according to claim 5, characterized in that: The top of the push rod (814) abuts against the pressure sensor (812), the push rod (814) is slidably installed inside the fixed plate (816), and the push rod (814) is slidably installed with the drawing part (82).

7. A coaxial wire feeding device according to claim 6, characterized in that: The drawing part (82) includes a cylindrical body (821). Inside the cylindrical body (821), a base plate (823) is fixedly installed by a second spring (822). The top rod (814) pushes the base plate (823) to move vertically. The base plate (823) pushes the flipping assembly (84) to move along the limiting slide groove (824), so that the flipping assembly (84) drives the stamp seat (85) to rotate.

8. A coaxial wire feeding device according to claim 7, characterized in that: The flipping assembly (84) includes a connecting plate (841), and a torsion spring (842) fixedly installed inside the connecting plate (841) is used to drive the connecting rod (843) to rotate and reset. One end of the connecting rod (843) is fixedly installed with a guide rod (845) through a connecting arm (844).

9. A coaxial wire feeding device according to claim 8, characterized in that: The flipping assembly (84) is slidably installed with the limiting slide groove (824) via the guide rod (845). The guide rod (845) drives the connecting arm (844) and the connecting rod (843) to rotate, causing the connecting rod (843) to pull one end of the torsion spring (842) to retract. The other end of the connecting rod (843) is fixedly installed with the stamp holder (85).

10. A coaxial wire feeding device according to any one of claims 1-9, characterized in that: A controller (7) is also provided on one side of the fixed base (2). The controller (7) has a built-in communication module, a data processing module, an overload protection module and a blockchain module. The controller (7) also includes external input and output terminals. The communication module is used to receive external input timestamps, coordinates and operator information for laying out lines, and automatically encrypts and stores them through the data processing module to form an immutable engineering log. After that, it is sent to the blockchain module to generate corresponding hash values ​​and digital signatures, and permanently stored after being verified through consensus. The overload protection module of the controller (7) is used to receive the pressure value of the pressure sensor (812) and control the start and stop of the drive motor (41) through the controller (7). The controller (7) is electrically connected to the pressure sensor (812) and the drive motor (41).