A detachable pay-off rack for metro electromechanical construction
The height of the wire-laying roller is automatically adjusted by using a servo motor to drive the threaded rod and connecting rod system. Combined with the inclined plate block structure, it simplifies disassembly and assembly, solving the problems of time-consuming manual adjustment and complicated disassembly and assembly of traditional wire-laying frames, and improving the efficiency and quality of subway electromechanical construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 10 BUREAU GRP ELECTRIC ENG CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional subway electromechanical construction line-laying frame height adjustment relies on manual operation, which is time-consuming and difficult to control, affecting construction efficiency and quality. In addition, the disassembly and assembly process of the line-laying roller is complicated, increasing the complexity and inconvenience of construction.
The height of the wire feeding roller is automatically adjusted by using a servo motor to drive the threaded rod. Combined with a linkage system and an inclined plate locking block structure, the disassembly and assembly process of the wire feeding roller is simplified. The leverage effect of the linkage system ensures the stability and accuracy of the height adjustment, and the automatic locking of the inclined plate limit block enables quick disassembly and assembly.
It enables rapid and accurate adjustment of the height of the wire feeding roller, reduces manual operation time, improves construction efficiency and quality, simplifies the disassembly and assembly process of the wire feeding roller, and enhances the maintainability and flexibility of the equipment.
Smart Images

Figure CN224394300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of subway electromechanical construction technology, and in particular to a detachable cable laying frame for subway electromechanical construction. Background Technology
[0002] Subway electromechanical construction is one of the key links in urban rail transit construction, involving a large amount of electromechanical equipment installation and wiring work. In subway construction, especially in the laying and commissioning phase of electromechanical systems, the cable laying frame plays a crucial role as an important auxiliary device. It is mainly used to support and place cables or other cables that need to be laid, ensuring that the cables remain neat and stable during construction and avoiding damage caused by uneven stress or line bending.
[0003] In traditional subway electromechanical construction cable laying frames, the height adjustment of the cable laying rollers usually relies on manual operation. Manual adjustment requires repeated operations and is time-consuming. Especially in construction scenarios where the height of the cable laying rollers needs to be adjusted frequently, it will significantly reduce construction efficiency. Manual adjustment is difficult to control the height of the cable laying rollers, which can easily lead to inaccurate height and affect the quality of cable laying. At the same time, in traditional cable laying frames, the disassembly and assembly of the cable laying rollers usually requires complex tools and cumbersome operating procedures, which takes a long time. Especially in construction scenarios where the cable laying rollers need to be replaced frequently, it will significantly reduce construction efficiency and increase the complexity and inconvenience of construction. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a detachable cable laying frame for subway electromechanical construction.
[0005] This utility model is achieved using the following technical solution: a detachable cable-laying frame for subway electromechanical construction, comprising support legs, with casters fixedly connected to the bottom of the support legs, and a support frame fixedly connected to the top of the support legs. The support frame has a sliding groove inside, and further includes:
[0006] A lifting mechanism, the lifting mechanism including a first movable block slidably connected inside a sliding groove, and a first rotating block being provided on the top of the first movable block;
[0007] The disassembly and assembly mechanism includes a fixed frame fixedly connected to the top of the first rotating block, and a wire feeding roller is provided inside the fixed frame.
[0008] As a further improvement to the above solution, the first movable block is rotatably connected to a first connecting rod, and the bottom inner wall of the support frame is fixedly connected to a second rotating block, the second rotating block being rotatably connected to a second connecting rod.
[0009] Through the above technical solution, this design transforms the horizontal movement of the first moving block into the vertical movement of the second moving block. At the same time, the rotational connection of the connecting rod ensures the smoothness and accuracy of the movement process. Furthermore, the precise transmission ratio ensures the accuracy of height adjustment and improves construction quality.
[0010] As a further improvement to the above solution, the end of the second connecting rod away from the second rotating block is rotatably connected to a second moving block, a servo motor is fixedly connected to the bottom inner wall of the support frame, and a threaded rod is fixedly connected to the output end of the servo motor.
[0011] Through the above technical solution, the linear motion of the first moving block drives the second moving block and the fixed frame to rise or fall vertically through the linkage system, thereby realizing the adjustment of the height of the wire feeding roller. At the same time, the cooperation of the servo motor and the threaded rod realizes the automatic adjustment of the height of the wire feeding roller, reducing the difficulty and time of manual operation and improving construction efficiency.
[0012] As a further improvement to the above solution, the first movable block is slidably connected inside the support frame, the second movable block is slidably connected inside the fixed frame, the second connecting rod is rotatably connected inside the first connecting rod, the first movable block is threadedly connected to the outside of the threaded rod, the end of the first connecting rod away from the first movable block is rotatably connected inside the first rotating block, and the first rotating block is fixedly connected to the bottom of the fixed frame.
[0013] Through the above technical solution, this design ensures accurate motion transmission between the first and second moving blocks. At the same time, the combination of sliding and rotating connections enables the vertical movement of the fixed frame. The stable support of the fixed frame ensures the safety and accuracy of the line laying operation, thereby improving the construction quality.
[0014] As a further improvement to the above solution, the fixed frame is internally fixedly connected with a sloping locking block, the fixed frame is internally inserted with an installation block, the installation block is internally fixedly connected with a limiting post, and the installation block is internally slidably connected with a sloping limiting block.
[0015] Through the above technical solution, the inclined structure enables quick assembly and disassembly of the wire feeding roller. This design simplifies the assembly and disassembly process, reduces operation time and labor costs, and improves the maintainability and flexibility of the equipment.
[0016] As a further improvement to the above solution, a spring is fixedly connected to the back of the inclined plane limiting block, a pull block is fixedly connected to the right side of the inclined plane limiting block, and a rotating column is fixedly connected inside the mounting block.
[0017] Through the above technical solution, the spring force ensures that the inclined limit block can automatically rebound and relock the mounting block after the tension is released. At the same time, the spring force realizes the automatic locking of the mounting block. This design further improves the convenience of the disassembly and assembly process, reduces operation steps and time, and improves the maintainability of the equipment.
[0018] As a further improvement to the above solution, the spring is fixedly connected between the inclined plane limiting block and the mounting block, the inclined plane limiting block is slidably connected to the outside of the limiting post, and the pull block is slidably connected to the inside of the mounting block.
[0019] Through the above technical solution, the limiting column provides a sliding track for the inclined limit block, ensuring its sliding stability and accuracy. The setting of the pull block facilitates the operator's pulling and control of the inclined limit block, realizing precise control of the sliding and positioning of the inclined limit block. This design ensures the accuracy and reliability of the wire feeding roller assembly and disassembly process, and improves the maintainability and service life of the equipment.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] This invention uses a servo motor as a power source to drive a threaded rod to rotate clockwise. The rotational motion of the threaded rod is converted into linear motion of the first moving block within a sliding groove through threaded engagement. The sliding of the first moving block is further converted into vertical upward movement of the second moving block and the fixed frame through the linkage of the first and second connecting rods. This process enables rapid adjustment of the height of the wire-laying roller. At the same time, the lever effect of the linkage system ensures stability and accuracy during the adjustment process, reduces the difficulty and time of manual adjustment, and improves construction efficiency. Furthermore, the precise height adjustment capability ensures the accuracy of the wire-laying operation, which helps to improve construction quality.
[0022] This invention allows for easy and efficient disassembly and assembly of the wire feeding roller. When the wire feeding roller needs to be disassembled, the operator pulls a lever, causing the inclined limiting block to move inward against the spring force of the spring, thus releasing the lock on the wire feeding roller. When installing the wire feeding roller, the mounting block with the wire feeding roller is inserted into the fixing frame. Guided by the inclined locking block, the inclined limiting block automatically springs back, relocking the mounting block. This design simplifies the disassembly and assembly process of the wire feeding roller, eliminating the need for complex tools or cumbersome procedures. Operators can easily replace the wire feeding roller, significantly saving time and labor costs. At the same time, the rapid disassembly and assembly capability improves the maintainability and flexibility of the equipment, helping to cope with different construction needs and emergencies. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2This is a cross-sectional view of the overall structure of this utility model;
[0025] Figure 3 This is a longitudinal sectional view of the overall structure of this utility model;
[0026] Figure 4 This is a breakdown diagram of the disassembly and assembly mechanism of this utility model;
[0027] Figure 5 This utility model Figure 3 Enlarged view of section A in the middle.
[0028] Explanation of key symbols:
[0029] 1. Support leg; 2. Lifting mechanism; 3. Assembly / disassembly mechanism; 11. Casters; 12. Support frame; 13. Sliding groove; 201. First moving block; 202. First connecting rod; 203. First rotating block; 204. Second rotating block; 205. Second connecting rod; 206. Second moving block; 207. Servo motor; 208. Threaded rod; 301. Fixing frame; 302. Inclined locking block; 303. Mounting block; 304. Limiting post; 305. Inclined limiting block; 306. Spring; 307. Pulling block; 308. Rotating post; 309. Feeding roller. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0031] Example:
[0032] Please combine Figure 1-5 This embodiment of a detachable cable-laying frame for subway electromechanical construction includes a support leg 1, with casters 11 fixedly connected to the bottom of the support leg 1 and a support frame 12 fixedly connected to the top of the support leg 1. The support frame 12 has a sliding groove 13 inside, and also includes:
[0033] The lifting mechanism 2 includes a first moving block 201 that is slidably connected inside the sliding groove 13, and a first rotating block 203 is provided on the top of the first moving block 201.
[0034] The disassembly and assembly mechanism 3 includes a fixed frame 301 fixedly connected to the top of the first rotating block 203, and a wire feeding roller 309 is provided inside the fixed frame 301.
[0035] The first moving block 201 is rotatably connected to the first connecting rod 202, and the bottom inner wall of the support frame 12 is fixedly connected to the second rotating block 204, and the second rotating block 204 is rotatably connected to the second connecting rod 205.
[0036] The second connecting rod 205 is rotatably connected to the end away from the second rotating block 204 by the second moving block 206. The bottom inner wall of the support frame 12 is fixedly connected to the servo motor 207, and the output end of the servo motor 207 is fixedly connected to the threaded rod 208.
[0037] The first moving block 201 is slidably connected inside the support frame 12, the second moving block 206 is slidably connected inside the fixed frame 301, the second connecting rod 205 is rotatably connected inside the first connecting rod 202, the first moving block 201 is threadedly connected to the outside of the threaded rod 208, the end of the first connecting rod 202 away from the first moving block 201 is rotatably connected inside the first rotating block 203, and the first rotating block 203 is fixedly connected to the bottom of the fixed frame 301.
[0038] The fixed frame 301 has an inclined plate block 302 fixedly connected inside, and an installation block 303 is inserted into the fixed frame 301. The installation block 303 has a limit post 304 fixedly connected inside, and an inclined plate limit block 305 is slidably connected inside the installation block 303.
[0039] A spring 306 is fixedly connected to the back of the inclined limit block 305, a pull block 307 is fixedly connected to the right side of the inclined limit block 305, and a rotating column 308 is fixedly connected inside the mounting block 303.
[0040] Spring 306 is fixedly connected between inclined limit block 305 and mounting block 303. Inclined limit block 305 is slidably connected to the outside of limit post 304. Pull block 307 is slidably connected to the inside of mounting block 303.
[0041] The implementation principle of a detachable wire-laying frame for subway electromechanical construction in this embodiment is as follows: When it is necessary to adjust the height of the wire-laying roller 309, the servo motor 207 can be started as a power source. The rotational motion of the threaded rod 208 is converted into the linear motion of the first moving block 201. When the servo motor 207 starts and drives the threaded rod 208 to rotate clockwise, the first moving block 201 slides to the left along the threaded rod 208. During this process, the linkage between the first connecting rod 202 and the second connecting rod 205 is activated. They act like a lever system, converting the horizontal displacement of the first moving block 201 into the vertical rise of the second moving block 206 and the fixed frame 301 fixed on it. This design not only makes the height adjustment of the wire-laying roller 309 simple and quick, but also ensures the stability and accuracy during the adjustment process, effectively improving construction efficiency and reducing the consumption of manpower and material resources.
[0042] When the pay-off roller needs to be disassembled, the operator only needs to pull the pull block 307 to make the inclined limit block 305 move into the mounting block 303 against the elastic force of the spring 306, thereby releasing the lock on the pay-off roller and easily pulling out the pay-off roller for replacement or maintenance. Conversely, when installing the pay-off roller, simply insert the mounting block 303 with the pay-off roller into the fixing frame 301, and the inclined limit block 305 will automatically spring back under the guidance of the inclined locking block 302, relocking the mounting block 303 and completing the quick installation of the pay-off roller.
[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A detachable cable-laying frame for subway electromechanical construction, comprising a support leg (1), wherein a caster wheel (11) is fixedly connected to the bottom of the support leg (1), and a support frame (12) is fixedly connected to the top of the support leg (1), wherein a sliding groove (13) is provided inside the support frame (12), characterized in that, Also includes: The lifting mechanism (2) includes a first moving block (201) slidably connected inside the sliding groove (13), and a first rotating block (203) is provided on the top of the first moving block (201). The disassembly and assembly mechanism (3) includes a fixed frame (301) fixedly connected to the top of the first rotating block (203), and a wire feeding roller (309) is provided inside the fixed frame (301).
2. The detachable cable-laying frame for subway electromechanical construction as described in claim 1, characterized in that: The first moving block (201) is rotatably connected to a first connecting rod (202), and the bottom inner wall of the support frame (12) is fixedly connected to a second rotating block (204), and the second rotating block (204) is rotatably connected to a second connecting rod (205).
3. A detachable cable-laying frame for subway electromechanical construction as described in claim 2, characterized in that: The second connecting rod (205) is rotatably connected to the end away from the second rotating block (204) by a second moving block (206), and a servo motor (207) is fixedly connected to the bottom inner wall of the support frame (12), and a threaded rod (208) is fixedly connected to the output end of the servo motor (207).
4. A detachable cable-laying frame for subway electromechanical construction as described in claim 3, characterized in that: The first movable block (201) is slidably connected inside the support frame (12), the second movable block (206) is slidably connected inside the fixed frame (301), the second connecting rod (205) is rotatably connected inside the first connecting rod (202), the first movable block (201) is threadedly connected to the outside of the threaded rod (208), the end of the first connecting rod (202) away from the first movable block (201) is rotatably connected inside the first rotating block (203), and the first rotating block (203) is fixedly connected to the bottom of the fixed frame (301).
5. A detachable cable-laying frame for subway electromechanical construction as described in claim 1, characterized in that: The fixed frame (301) is internally fixedly connected to a sloping locking block (302), and the fixed frame (301) is internally inserted with an installation block (303). The installation block (303) is internally fixedly connected to a limiting post (304), and the installation block (303) is internally slidably connected with a sloping limiting block (305).
6. A detachable cable-laying frame for subway electromechanical construction as described in claim 5, characterized in that: A spring (306) is fixedly connected to the back of the inclined limit block (305), a pull block (307) is fixedly connected to the right side of the inclined limit block (305), and a rotating column (308) is fixedly connected inside the mounting block (303).
7. A detachable cable-laying frame for subway electromechanical construction as described in claim 6, characterized in that: The spring (306) is fixedly connected between the inclined limit block (305) and the mounting block (303). The inclined limit block (305) is slidably connected to the outside of the limit post (304), and the pull block (307) is slidably connected to the inside of the mounting block (303).