Municipal construction pipeline protection device

Abstract

The invention belongs to the technical field of municipal construction, and particularly relates to a municipal construction pipeline protection device. Comprising a stand, a connecting rod, a lower arc-shaped frame, an upper arc-shaped frame and a flexible connecting chain, the stand is fixed to the hard soil layer away from the soft soil layer, the top end of the stand is rotationally connected with a connecting rod, the top end of the connecting rod is provided with a lower arc-shaped frame, the top end of the lower arc-shaped frame is connected with an upper arc-shaped frame, the bottom end of the lower arc-shaped frame is fixedly connected with a guide rod, and an adjusting mechanism is connected between the connecting rod and the guide rod. The stability of the whole protection device is ensured, and sinking or displacement of the pipeline due to instability of a foundation is effectively prevented; the relative position between the connecting rod and the lower arc-shaped frame can be flexibly adjusted through the adjusting mechanism, the installation process is greatly simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal construction, and specifically relates to a municipal construction pipeline protection device. Background Art

[0002] During municipal construction, pipeline laying and protection is a crucial link. Traditional pipeline construction methods, especially in soft soil environments (such as swamps), face many challenges. Pipelines are usually made of materials such as polyethylene. Although these materials have good flexibility and corrosion resistance, they are prone to deformation or even breakage due to uneven soil settlement or the thermal expansion and contraction effects of the pipeline itself when faced with the special geological conditions of soft soil.

[0003] Most of the existing municipal pipeline support methods use the method of setting support points at equal intervals; however, this method has obvious shortcomings in soft soil environments; due to the weak bearing capacity of soft soil layers, pipelines are prone to sinking under the influence of upper loads or their own material properties; and traditional support point setting methods often cannot adapt to this sinking in time, causing the pipeline to be subjected to excessive stress during the settlement process, resulting in deformation or breakage.

[0004] In addition, polyethylene pipelines will also produce a certain amount of displacement during the process of thermal expansion and contraction; if the support points cannot be flexibly adjusted, additional constraints will be exerted on the pipelines, further aggravating the deformation and damage of the pipelines; therefore, in soft soil environments, how to effectively protect pipelines and prevent them from deformation and fracture due to settlement or thermal expansion and contraction has become an urgent problem to be solved.

[0005] Therefore, it is necessary to provide a new municipal construction pipeline protection device to solve the above technical problems. Summary of the invention

[0006] The present invention overcomes the shortcomings of the prior art and proposes a municipal construction pipeline protection device; the present invention is achieved through the following technical solutions: A municipal construction pipeline protection device comprises a platform column, a connecting rod, a lower arc frame, an upper arc frame and a flexible connecting chain; the platform column is fixed at a hard soil layer away from a soft soil layer, the top of the platform column is rotatably connected with the connecting rod, the top of the connecting rod is installed with a lower arc frame, the top of the lower arc frame is connected with an upper arc frame, the lower arc frame and the upper arc frame form a circular ring structure, the two circular ring structures are respectively sleeved on the outer wall of the pipeline from both ends of the pipeline, and are used to support the pipeline; a flexible connecting chain is provided at the bottom of the pipeline, and the two ends of the flexible connecting chain are respectively fixedly connected to the lower arc frames at both ends of the pipeline; The bottom end of the lower arc frame is fixedly connected to a guide rod, and an adjustment mechanism is connected between the connecting rod and the guide rod; the adjustment mechanism includes a worm, a worm wheel, a hollow active bevel gear, a driven bevel gear and a threaded rod; the top of the column is rotatably connected to a worm; the end of the connecting rod close to the column is fixedly connected to a worm wheel, the worm wheel is meshingly connected to the worm, the top of the column is fixedly connected to a mounting plate, the mounting plate is rotatably connected to the connecting rod, one end of the mounting plate is rotatably connected to the hollow active bevel gear, a gear ring is fixedly connected inside the hollow active bevel gear, one end of the worm wheel is fixedly connected to a gear, the gear is meshingly connected to the gear ring, and The gear and the hollow active bevel gear axis do not coincide; a sliding groove is provided at the top of the connecting rod, and the inner wall of the sliding groove is rotatably connected to the driven bevel gear, the hollow active bevel gear is meshed and connected with the driven bevel gear, and a threaded rod is fixedly connected to the axis of the driven bevel gear; connecting grooves are provided at the four corners of the bottom end of the guide rod, and a push rod is slidably connected to the inner wall of the connecting groove, one end of the push rod is fixedly connected to one end of a push spring, and the other end of the push spring is fixedly connected to the inner wall of the connecting groove, and the bottoms of the four push rods extend out of the connecting groove and are fixedly connected to a threaded slider, and the threaded rod is inserted into the threaded slider and threadedly connected to the threaded slider.

[0007] Furthermore, connecting blocks are installed on both sides of the flexible connecting chain; tension grooves are symmetrically arranged inside the connecting block, and tension blocks are slidably connected inside the tension grooves. A tension spring is fixedly connected between the tension block and the tension grooves, one end of the steel wire rope extends into the tension groove and is fixedly connected to the tension block, and the other end of the steel wire rope is fixedly connected to the upper arc frame on the closer side.

[0008] Furthermore, the pipeline is formed by hot-melt welding of a plurality of polyethylene pipes in sequence, and the connection block corresponds to the position of the hot-melt welding position of the pipeline.

[0009] Furthermore, the diameter ratio between the hollow driving bevel gear and the driven bevel gear is 3:1.

[0010] Furthermore, the platform column is cast by concrete, and a hook body for fixed connection is arranged at the bottom of the platform column.

[0011] Furthermore, one end of the worm is provided with a hexagonal groove.

[0012] Furthermore, a limiting groove is provided on the inner wall of the slide groove, a placement groove is provided on one side of the guide rod, a limiting spring is fixedly connected to the inner wall of the placement groove, a clamping block is fixedly connected to one end of the limiting spring, and the clamping block is clamped with the limiting groove.

[0013] Furthermore, the flexible connecting chain is composed of several of the connecting parts, one side of two adjacent connecting parts is slidably connected with a connecting ball, a connecting ball rod is fixedly connected between the two adjacent connecting balls, the connecting parts are divided into male parts and female parts, a flexible slide groove is opened inside the female part, and a buffer spring is symmetrically fixedly connected to the inner wall of the flexible slide groove, the male part is slidably connected to the flexible slide groove, one end of the male part is fixedly connected to the two buffer springs, and the male parts and female parts adjacent to the different connecting parts are hinged.

[0014] Furthermore, a connecting seat is provided at the top of the column, and a connecting rod is rotatably connected in the connecting seat.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: 1. Enhance pipeline stability and safety: By fixing the column on the hard soil layer away from the soft soil layer, the stability of the entire protection device is ensured, effectively preventing the pipeline from sinking or shifting due to unstable foundation.

[0016] The coordinated use of the upper arc frame and the lower arc frame provides all-round support for the pipeline and enhances the stability of the pipeline.

[0017] The design of the flexible connecting chain allows for effective buffering and absorption of pipeline deformation (such as thermal expansion and contraction, expected sinking, etc.), thus avoiding rupture or damage to the pipeline due to stress concentration and improving the safety of the pipeline.

[0018] 2. Improve construction efficiency and reduce costs: The design of the adjustment mechanism allows the relative position between the connecting rod and the lower arc frame to be flexibly adjusted, which greatly simplifies the installation process and improves construction efficiency.

[0019] The indirect connection between the top rod and the connecting rod reduces the complex structure and components required for direct connection, reducing material costs. The easy installation and maintenance of the flexible connection chain also further reduces construction and operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the municipal construction pipeline protection device provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the structure after removing the pipeline; Figure 3 for Figure 1 The structural schematic diagram of the column and the connecting rod shown; Figure 4 for Figure 1 A schematic diagram of the structure inside the connecting rod shown; Figure 5 It is a schematic diagram of the connection structure between the worm wheel and the gear; Figure 6 for Figure 4 The schematic diagram of the structure of the inner gear ring of the hollow active bevel gear shown; Figure 7 for Figure 1 The structural schematic diagram of the flexible connection chain shown; Figure 8 One of the structural diagrams of the male and female parts; Fig. 9 This is the second structural diagram of the male and female parts; Fig.10 It is a schematic diagram of the structure of the connecting groove inside the guide rod; Fig.11 It is a structural schematic diagram of the block inside the guide rod; Fig.12 A schematic diagram of the connection block structure.

[0021] Numbers in the figure: 1. Pillar; 3. Connecting rod; 4. Lower arc frame; 5. Upper arc frame; 6. Pipeline; 7. Flexible connecting chain; 8. Connecting block; 9. Wire rope; 11. Worm; 12. Worm wheel; 121. Gear; 13. Hollow active bevel gear; 131. Gear ring; 132. Mounting plate; 14. Slide; 15. Driven bevel gear; 16. Threaded rod; 17. Guide rod; 18. Connecting groove; 19. Push spring; 20. Push rod; 21. Threaded slider; 22. Connecting piece; 23. Connecting ball; 24. Connecting ball rod; 25. Flexible slide; 26. Buffer spring; 27. Tension groove; 28. Tension block; 29. ​​Tension spring; 30. Hexagonal groove; 31. Limit groove; 32. Limit spring; 33. Block; 221. Male part; 222. Female part. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0023] See also Figures 1 to 12 This embodiment proposes a municipal construction pipeline protection device, including a column 1, a connecting rod 3, a lower arc frame 4, an upper arc frame 5, a flexible connecting chain 7, a connecting block 8 and a steel wire rope 9; the column 1 is cast with concrete, and a hook body for fixed connection is provided at the bottom of the column 1. The column 1 is fixed on a hard soil layer away from the soft soil layer to provide a stable support foundation for the entire protection device.

[0024] A connecting seat is provided at the top of the column 1, and a connecting rod 3 is rotatably connected inside the connecting seat. The connecting rod 3 can flexibly rotate to adapt to the deformation of the pipeline 6; a lower arc frame 4 is installed at the top of the connecting rod 3, and an upper arc frame 5 is fixedly connected to the top of the lower arc frame 4 by bolts. The lower arc frame 4 and the upper arc frame 5 form a circular ring structure, and the two circular ring structures are respectively sleeved on the outer wall of the pipeline 6 from both ends of the pipeline 6 to support the pipeline 6. The pipeline 6 is formed by hot-melt welding of several groups of polyethylene pipes in sequence. A flexible connecting chain 7 is provided at the bottom of the pipeline 6. The two ends of the flexible connecting chain 7 are fixedly connected to the lower arc-shaped frame 4 at the two ends of the pipeline 6. The two sides of the flexible connecting chain 7 are installed with connecting blocks 8 corresponding to the hot-melt welding positions of the pipeline 6. The connection block 8 is symmetrically provided with a tension groove 27. The tension block 28 is slidably connected inside the tension groove 27. A tension spring 29 is fixedly connected between the tension block 28 and the tension groove 27. One end of the steel wire rope 9 extends into the tension groove 27 and is fixedly connected to the tension block 28. The other end of the steel wire rope 9 is fixedly connected to the upper arc-shaped frame 5 on the side closer to the distance. The tension block 28 and the tension spring 29 together constitute the tension adjustment system inside the connection block 8, which is used to adapt to the deformation of the pipeline 6 and absorb stress. When the pipeline 6 is deformed, the tension block 28 slides in the tension groove 27 to stretch or compress the tension spring 29, thereby achieving buffering and absorption of the deformation of the pipeline 6.

[0025] It should be noted that the top end of the connecting rod 3 is not directly connected to the lower arc frame 4, but is indirectly connected through the guide rod 17; an adjusting mechanism is connected between the connecting rod 3 and the guide rod 17; the adjusting mechanism includes a worm 11, a worm wheel 12, a hollow active bevel gear 13, a driven bevel gear 15 and a threaded rod 16; the height between the connecting rod 3 and the lower arc frame 4 is adjusted by the adjusting mechanism; specifically, the top end of the column 1 is rotatably connected to the worm 11, and one end of the worm 11 is provided with an inner hexagonal groove 30; the end of the connecting rod 3 close to the column 1 is fixedly connected to the worm wheel 12, and the worm wheel 12 is meshingly connected to the worm 11, and the top end of the column 1 is fixedly connected to a mounting plate 132, and the mounting plate 132 is rotatably connected to the connecting rod 3, and one end of the mounting plate 132 is rotatably connected to the hollow active bevel gear 13, and the hollow active bevel gear 13 is fixedly connected to a gear ring 131, and one end of the worm wheel 12 is fixedly connected to a gear 121, and the gear 121 is meshingly connected to the gear ring 1 31 is meshed and connected, and the gear 121 does not coincide with the axis of the hollow active bevel gear 13; a slide groove 14 is provided at the top of the connecting rod 3, and a driven bevel gear 15 is rotatably connected to the inner wall of the slide groove 14, the hollow active bevel gear 13 is meshed and connected with the driven bevel gear 15, and the diameter ratio between the hollow active bevel gear 13 and the driven bevel gear 15 is 3:1; a threaded rod 16 is fixedly connected to the axis of the driven bevel gear 15; a guide rod 17 is fixedly connected to the bottom end of the lower arc frame 4, the guide rod 17 is hollow in design, and connecting grooves 18 are provided at the four corners of the bottom end of the guide rod 17, and a push rod 20 is slidably connected to the inner wall of the connecting groove 18, one end of the push rod 20 is fixedly connected to one end of a push spring 19, and the other end of the push spring 19 is fixedly connected to the inner wall of the connecting groove 18, the bottoms of the four push rods 20 extend out of the outside of the connecting groove 18 and are fixedly connected to a threaded slider 21, and the threaded rod 16 is penetrated in the threaded slider 21 and is threadedly connected to the threaded slider 21.

[0026] Use a tool to extend into the hexagonal groove 30 to rotate the worm 11. The rotation of the worm 11 can drive the worm wheel 12, the hollow active bevel gear 13, and the driven bevel gear 15 to transmit in sequence, thereby rotating the threaded rod 16; the rotation of the threaded rod 16 will drive the threaded slider 21 to move, and since the push rod 20 is connected to the threaded slider 21, the push rod 20 will also move accordingly, thereby moving the guide rod 17; this movement can adjust the relative position between the connecting rod 3 and the lower arc frame 4, thereby achieving precise support and adaptation to the pipeline 6; and the hollow structure of the guide rod 17, the connecting groove 18 and the push spring 19 play a buffering role, which helps to ensure the stability and reliability of the push rod 20 during the movement.

[0027] A limiting groove 31 is provided on the inner wall of the slide groove 14, and a placement groove is provided on one side of the guide rod 17. A limiting spring 32 is fixedly connected to the inner wall of the placement groove, and a clamping block 33 is fixedly connected to one end of the limiting spring 32, and the clamping block 33 is clamped with the limiting groove 31; when the guide rod 17 is inserted into the slide groove 14, the clamping block 33 is clamped with the limiting groove 31, and at this time, the threaded slider 21 is tightly pressed against one end of the threaded rod 16 by the elastic force of the push spring 19. As the threaded rod 16 rotates, the threaded slider 21 forms a threaded connection with the threaded rod 16, and drives the clamping block 33 and the guide rod 17 to move.

[0028] The flexible connecting chain 7 is composed of a plurality of connecting parts 22, one side of two adjacent connecting parts 22 is slidably connected with a connecting ball 23, a connecting ball rod 24 is fixedly connected between the two adjacent connecting balls 23, the connecting parts 22 are divided into a male part 221 and a female part 222, a flexible slide groove 25 is opened inside the female part 222, and a buffer spring 26 is symmetrically fixedly connected to the inner wall of the flexible slide groove 25, the male part 221 is slidably connected to the flexible slide groove 25, one end of the male part 221 is fixedly connected to two buffer springs 26, and the male part 221 of a connecting part 22 and the female part 222 of the adjacent connecting part 22 are hinged.

[0029] It should be noted that the design of the connecting member 22 (such as the sliding connection between the male member 221 and the female member 222 , the elastic support of the buffer spring 26 , etc.) further enhances the deformation adaptability of the flexible connecting chain 7 .

[0030] The working principle of the municipal construction pipeline protection device provided by the present invention is as follows: Fixing and supporting of column 1: The column 1 is fixed on the hard soil layer away from the soft soil layer by pouring concrete, providing a stable support foundation for the entire protection device; A connecting seat is designed at the top of the column 1 for connecting and supporting the connecting rod 3, ensuring that the connecting rod 3 can rotate flexibly to adapt to the deformation of the pipeline 6; Indirect connection between the connecting rod 3, the top rod 20 and the lower arc frame 4: One end of the connecting rod 3 is rotatably connected to the platform column 1, and the other end is not directly in contact with the lower arc frame 4, but is indirectly connected through the guide rod 17; Specifically, the threaded slider 21 at one end of the guide rod 17 is threadedly connected to the threaded rod 16 inside the connecting rod 3 (ensuring that the top rod 20 can move with the rotation of the connecting rod 3), and the other end of the guide rod 17 is fixedly connected to the lower arc frame 4 to form a stable supporting structure.

[0031] The cooperation between the upper arc frame 5 and the lower arc frame 4: After the lower arc frame 4 is connected to the connecting rod 3 through the guide rod 17, the top end of the lower arc frame 4 is connected to the upper arc frame 5 by bolts or other fixing methods to form a stable frame for fixing and supporting the pipeline 6.

[0032] Elastic support and deformation adaptation of flexible connecting chain 7: The flexible connection chain 7 is composed of a plurality of connecting parts 22, and each connecting part 22 is flexibly connected through a connecting ball 23 and a connecting ball rod 24; when the pipeline 6 is deformed (such as the expected sinking amount or thermal expansion and contraction), the flexible connection chain 7 can undergo a downward arc deformation to absorb and disperse the stress on the pipeline 6; the design of the connecting parts 22 (such as the sliding connection between the male part 221 and the female part 222, the elastic support of the buffer spring 26, etc.) further enhances the deformation adaptability of the flexible connection chain 7.

[0033] Overall working process: During the installation process, the column 1 is first fixed on the hard soil layer, then the connecting rod 3 is tilted, and the guide rod 17 is inserted into the connecting rod 3; Use a tool to rotate the worm 11, which in turn drives the worm wheel 12 to rotate. The rotation of the worm wheel 12 drives the gear 121 to rotate. The gear 121 is meshed with the gear ring 131, and the two are not concentric. The rotation of the worm wheel 12 drives the gear ring 131 and the hollow active bevel gear 13 to rotate. The hollow active bevel gear 13 is meshed and connected with the driven bevel gear 15. Therefore, the rotation of the worm wheel 12 eventually drives the threaded rod 16 to rotate, and the worm wheel 12 and the connecting rod 3 are integrated. Therefore, when the worm wheel 12 rotates, the connecting rod 3 also rotates together. Therefore, the initial state of the connecting rod 3 is inclined to the ground, and finally as The rotation of the connecting rod 3 forms a state perpendicular to the ground; when the connecting rod 3 is in the initial inclined state, the flexible connecting chain 7 is flexible and therefore droops to form an arc; when the connecting rod 3 rotates to a vertical state, the flexible connecting chain 7 will correspondingly form a straightened and tightened state, so that the pipeline 6 is more fully supported; the rotation of the threaded rod 16 will push the threaded slider 21 to move, and then drive the top rod 20 to move, until the relative position between the connecting rod 3 and the lower arc frame 4 meets the design requirements; at this time, the block 33 is engaged with the limit groove 31 to ensure that the position of the connecting rod 3 is stable.

[0034] Then, the upper arc frame 5 and the lower arc frame 4 are fixedly connected by bolts to form a stable frame; the pipeline 6 is placed between the two groups of lower arc frames 4 and the two groups of upper arc frames 5, and supported by the flexible connecting chain 7 at the bottom; the elastic support and deformation adaptability of the flexible connecting chain 7 can absorb and disperse the stress on the pipeline 6.

[0035] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A municipal construction pipeline protection device, characterized in that: The utility model comprises a platform column (1), a connecting rod (3), a lower arc frame (4), an upper arc frame (5) and a flexible connecting chain (7); the platform column (1) is fixed at a hard soil layer away from the soft soil layer, the top of the platform column (1) is rotatably connected to the connecting rod (3), the top of the connecting rod (3) is provided with a lower arc frame (4), the top of the lower arc frame (4) is connected to the upper arc frame (5), the lower arc frame (4) and the upper arc frame (5) form a circular ring structure, the two circular ring structures are respectively sleeved on the outer wall of the pipeline (6) from both ends of the pipeline (6) to support the pipeline (6); the bottom of the pipeline (6) is provided with a flexible connecting chain (7), the two ends of the flexible connecting chain (7) are respectively fixedly connected to the lower arc frame (4) at both ends of the pipeline (6); The bottom end of the lower arc frame (4) is fixedly connected to a guide rod (17), and an adjustment mechanism is connected between the connecting rod (3) and the guide rod (17); the adjustment mechanism comprises a worm (11), a worm wheel (12), a hollow active bevel gear (13), a driven bevel gear (15) and a threaded rod (16); the top end of the platform column (1) is rotatably connected to the worm (11); the end of the connecting rod (3) close to the platform column (1) is fixedly connected to the worm wheel (12), the worm wheel (12) is meshingly connected to the worm (11), the top end of the platform column (1) is fixedly connected to a mounting plate (132), the mounting plate (132) is rotatably connected to the connecting rod (3), one end of the mounting plate (132) is rotatably connected to the hollow active bevel gear (13), the hollow active bevel gear (13) is fixedly connected to a gear ring (131), one end of the worm wheel (12) is fixedly connected to a gear (121), the gear (121) and the gear ring (131) are connected to each other. The guide rod (17) is meshedly connected, and the axis of the gear (121) and the hollow active bevel gear (13) do not overlap; the top of the connecting rod (3) is provided with a slide groove (14), the inner wall of the slide groove (14) is rotatably connected with a driven bevel gear (15), the hollow active bevel gear (13) is meshedly connected with the driven bevel gear (15), and the axis of the driven bevel gear (15) is fixedly connected with a threaded rod (16); the four corners of the bottom end of the guide rod (17) are provided with connecting grooves (18), the inner wall of the connecting groove (18) is slidably connected with a push rod (20), one end of the push rod (20) is fixedly connected with one end of a push spring (19), and the other end of the push spring (19) is fixedly connected with the inner wall of the connecting groove (18), the bottoms of the four push rods (20) extend out of the outside of the connecting groove (18) and are fixedly connected with a threaded slider (21), and the threaded rod (16) is inserted into the threaded slider (21) and is threadedly connected with the threaded slider (21).

2. A municipal construction pipeline protection device according to claim 1, characterized in that: Connecting blocks (8) are installed on both sides of the flexible connecting chain (7); tension grooves (27) are symmetrically arranged inside the connecting block (8); a tension block (28) is slidably connected inside the tension groove (27); a tension spring (29) is fixedly connected between the tension block (28) and the tension groove (27); one end of the steel wire rope (9) extends into the tension groove (27) and is fixedly connected to the tension block (28); and the other end of the steel wire rope (9) is fixedly connected to the upper arc frame (5) on the side closer to the upper arc frame (5).

3. A municipal construction pipeline protection device according to claim 2, characterized in that: The pipeline (6) is formed by hot-melt welding of a plurality of polyethylene pipes in sequence, and the connection block (8) corresponds to the position of the hot-melt welding position of the pipeline (6).

4. A municipal construction pipeline protection device according to claim 1, characterized in that: The diameter ratio between the hollow active bevel gear (13) and the driven bevel gear (15) is 3:

1.

5. A municipal construction pipeline protection device according to claim 1, characterized in that: The platform column (1) is cast with concrete, and a hook body for fixed connection is arranged at the bottom of the platform column (1).

6. A municipal construction pipeline protection device according to claim 1, characterized in that: One end of the worm (11) is provided with a hexagonal recess (30).

7. A municipal construction pipeline protection device according to claim 1, characterized in that: A limiting groove (31) is provided on the inner wall of the slide groove (14), a placement groove is provided on one side of the guide rod (17), a limiting spring (32) is fixedly connected to the inner wall of the placement groove, a clamping block (33) is fixedly connected to one end of the limiting spring (32), and the clamping block (33) is clamped with the limiting groove (31).

8. A municipal construction pipeline protection device according to claim 1, characterized in that: The flexible connecting chain (7) is composed of a plurality of connecting members (22), one side of two adjacent connecting members (22) is slidably connected to a connecting ball (23), a connecting ball rod (24) is fixedly connected between the two adjacent connecting balls (23), the connecting member (22) is divided into a male member (221) and a female member (222), a flexible sliding groove (25) is provided inside the female member (222), a buffer spring (26) is symmetrically fixedly connected to the inner wall of the flexible sliding groove (25), the male member (221) is slidably connected to the flexible sliding groove (25), one end of the male member (221) is fixedly connected to two buffer springs (26), and the male member (221) of a connecting member (22) and the female member (222) of the adjacent connecting member (22) are hinged.

9. A municipal construction pipeline protection device according to claim 1, characterized in that: A connecting seat is provided at the top end of the platform column (1), and a connecting rod (3) is rotatably connected in the connecting seat.

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