Municipal rain and sewage pipeline laying device

Abstract

The utility model relates to the field of pipeline laying, and provides a municipal rainwater and sewage pipeline laying device which comprises a movable seat. The two groove plates are fixedly arranged on the inner wall of one side of the moving base, and racks are slidably arranged on the opposite sides of the two groove plates. After a pipeline is fixed, the moving base can be pushed to a laying site through a handle, an external power switch of a bidirectional motor is turned on, and then an output shaft of the bidirectional motor drives a rotating rod to rotate; when the gear rotates clockwise, the gear drives the two racks to move, and when the gear rotates clockwise, the gear drives the two racks to slide in the groove plate in the direction opposite to the moving direction of the two racks, so that the two L-shaped plates slide in the groove opening, the two sliding barrels are driven to move relatively, and by controlling the rotating direction of an output shaft of a bidirectional motor, the two sliding barrels are driven to move relatively. And the height position of the pipeline can be controlled, so that the pipeline can be laid at different heights during pipeline laying, use under different conditions is facilitated, and the diversity of the device is improved.

Description

Technical Field

[0001] This application relates to the field of pipeline laying, and particularly to a municipal rain and sewage pipeline laying device. Background Art

[0002] Municipal rain and sewage pipelines are part of urban infrastructure, used to separately treat rainwater and sewage. Rainwater pipelines collect and discharge precipitation to avoid urban waterlogging, while sewage pipelines treat wastewater generated by households and industries to prevent pollution.

[0003] Currently, a Chinese patent with the publication number of CN208023683U discloses a municipal rain and sewage pipeline laying device, which includes a base. Fixed slots are provided on both sides of the outer wall of the top of the base, and connection holes are provided at the four corner positions of the outer wall of the top of the base. A fixing plate is abutted against the top outer wall of the base, and fixing blocks are installed on both sides of the bottom outer wall of the fixing plate through bolts. Placement holes are provided at the four corner positions of the top outer wall of the fixing plate, and adjustment holes are provided on the bottom inner wall of the placement holes. The circumferential inner wall of the adjustment hole is threadedly connected with an adjustment rod. Through the setting of the adjustment rod and the adjustment hole, the height of the four corners of the fixing plate can be finely adjusted by using a sleeve tool, which is convenient for the pipeline to remain horizontal, with simple operation and convenient installation. A horizontal sensor is provided on the top, which can remind the staff to make corrections in time when there is an accidental tilt. Through the setting of the limiting groove and the limiting block, the pipeline will not shift, and the use is safe and reliable.

[0004] Although the above solution has the above advantages, its disadvantages are as follows. When laying municipal rain and sewage pipelines, due to drainage requirements, the laying heights of some pipeline positions are inconsistent, and the height of the pipeline laying device cannot be adjusted, so the pipeline cannot be laid at different height positions, reducing the diversity of the device. When laying pipelines, it is necessary to connect a section of pipeline to the already installed pipeline. Some existing devices do not fix the pipeline, and during laying, manual support of the pipeline is required to facilitate the laying of the pipeline. This method increases the workload of the laying workers and indirectly reduces the pipeline laying efficiency. Some devices can fix the pipeline, but due to the inconsistent sizes and specifications of some pipelines, they can only fix a single pipeline, which is not very convenient. Summary of the Utility Model

[0005] A municipal rain and sewage pipeline laying device provided by this application can lay pipelines at different heights during pipeline laying, which is convenient for use in different situations, improves the diversity of the device, fixes the pipeline, eliminates the need for manual support of the pipeline, fixes it on the already installed and fixed pipeline, improves the convenience of pipeline laying, and can fix pipelines of different specifications, improving the practicality of the device.

[0006] To achieve the above object, the present application adopts the following technical solutions: A municipal rain and sewage pipeline laying device, which device includes:

[0007] A moving seat;

[0008] Two groove plates, fixedly arranged at the inner wall on one side of the moving seat, and racks are slidably arranged on the opposite sides of the two groove plates, and the two racks can slide on the opposite sides of the two groove plates;

[0009] Two fixed rods, fixedly arranged on one side of the inner wall of the moving seat, and a bidirectional motor is installed on the opposite sides of the two fixed rods. The two fixed rods support the bidirectional motor so that it is installed inside the moving seat, and the output shaft of the bidirectional motor can rotate forward and backward;

[0010] A rotating rod, fixedly arranged on the output shaft of the bidirectional motor, and a gear is fixedly sleeved on the outer surface of the rotating rod. Turn on the external power switch of the bidirectional motor, and then the output shaft of the bidirectional motor drives the rotating rod to rotate, further causing the gear to rotate;

[0011] A cross bar, fixedly arranged on both sides of the inner wall of the moving seat, and two sliding cylinders are movably sleeved on the outer surface of the sliding cylinder. The two sliding cylinders can slide on the outer surface of the cross bar, and the sliding directions of the two sliding cylinders on the outer surface of the cross bar are different, and the height at which the pipeline is located is also different;

[0012] Two first connecting shafts are respectively fixedly arranged at the inner walls of the two sliding cylinders, and transmission plates are movably sleeved on the outer surfaces of the two first connecting shafts. When the two sliding cylinders move, they drive the two transmission plates to move, and the two transmission plates can rotate respectively with the two first connecting shafts as axes;

[0013] Two second connecting shafts are movably embedded in one side of the two transmission plates, and connecting plates are fixedly arranged at both ends of the two second connecting shafts. The two transmission plates can rotate with the two second connecting shafts as axes. When the two sliding cylinders slide in the opposite directions on the outer surface of the cross bar, the two transmission plates push the connecting plate upward. When the two sliding cylinders slide in the opposite directions on the outer surface of the cross bar, the two transmission plates pull the connecting plate downward.

[0014] As a further improvement of the present application: The outer surface of the gear meshes with one side of the two racks. One end of the rotating rod is arranged at the center of the inner wall on one side of the moving seat through a bearing. A handle is fixedly arranged on one side of the moving seat. The rotating rod can rotate because of the bearing. When the gear rotates, it drives the two racks to move. The handle facilitates pushing the entire device. When the gear rotates clockwise, the gear drives the two racks to slide inside the groove plate, and the direction is the relative direction of the movement of the two racks, further causing the two L-shaped plates to slide inside the notch, driving the two sliding cylinders to move relatively. When the gear rotates counterclockwise, the gear drives the two racks to slide inside the groove plate, and the direction is the opposite direction of the movement of the two racks.

[0015] As a further improvement of the present application: L-shaped plates are fixedly arranged on the opposite sides of the two racks. The two L-shaped plates are respectively fixedly arranged on the outer surfaces of the two sliding cylinders. Notch openings are formed on the opposite sides of the two groove plates. One side of each of the two L-shaped plates is slidably arranged at the inner walls of the two notch openings. When the two racks move, the two sliding cylinders are driven to move through the two L-shaped plates. The two L-shaped plates can slide inside the two notch openings, and the two notch openings limit the moving positions of the two L-shaped plates.

[0016] As a further improvement of the present application: A fixing frame is fixedly arranged on one side of the connecting plate. Sliding plates are movably sleeved on the opposite sides of the fixing frame. When the connecting plate moves to different heights, the fixing frame is driven to move. The pipeline is fixed on the fixing frame, and further, the pipeline can be laid at different heights. The two sliding plates can slide inside the opposite sides of the fixing frame.

[0017] As a further improvement of the present application: A first arc-shaped plate is fixedly arranged on one side of one of the sliding plates, and a second arc-shaped plate is fixedly arranged on one side of the other sliding plate. The two sliding plates can move, so that the two second arc-shaped plates can also move.

[0018] As a further improvement of the present application: Two threaded rods are fixedly arranged on one side of the first arc-shaped plate. The two threaded rods are movably embedded on one side of the second arc-shaped plate. Rotating cylinders are threadedly sleeved on the outer surfaces of the two threaded rods. The second arc-shaped plate can slide on the outer surfaces of the two threaded rods. When the two rotating cylinders are rotated clockwise, the two rotating cylinders move towards the first arc-shaped plate on the outer surfaces of the two threaded rods. When the two rotating cylinders cannot rotate, the two fixing plates completely fix the pipeline.

[0019] As a further improvement of the present application: First telescopic rods are fixedly arranged on the inner walls of the first arc-shaped plate and the second arc-shaped plate. Second telescopic rods are movably sleeved on the outer surfaces of the two first telescopic rods. Fixing plates are fixedly arranged on the opposite sides of the two second telescopic rods. The two second telescopic rods can respectively slide on the outer surfaces of the two first telescopic rods. The two fixing plates clamp the outer surface of the pipeline to fix the pipeline.

[0020] As a further improvement solution of the present application: circular plates are fixedly sleeved on the outer surfaces of the two first telescopic rods, extrusion springs are fixedly arranged on the opposite sides of the two circular plates, the two extrusion springs are movably sleeved on the outer surfaces of the two first telescopic rods, the two circular plates support the two extrusion springs, and respectively push the two fixing plates towards both sides. At this time, the two second telescopic rods and the two circular plates respectively squeeze the two extrusion springs. When the two extrusion springs are squeezed, they generate reverse acting forces. The two extrusion springs can slide on the outer surfaces of the two first telescopic rods, and the two circular plates support the two extrusion springs.

[0021] Compared with the prior art, the advantages and positive effects of the present application are as follows.

[0022] 1. In the present application, after the pipeline is fixed, the moving seat can be pushed to the laying location through the handle. The two sliding cylinders can slide on the outer surface of the cross bar. The two transmission plates can rotate respectively with the two first connecting shafts or the two second connecting shafts as the axes. Thus, when the two sliding cylinders slide in the opposite directions on the outer surface of the cross bar, the two transmission plates push the connecting plate upward. When the two sliding cylinders slide in the opposite directions on the outer surface of the cross bar, the two transmission plates pull the connecting plate downward, thereby controlling the height position of the laid pipeline. The output shaft of the bidirectional motor can rotate forward and backward. The two fixed rods support the bidirectional motor and install it inside the moving seat. Turn on the external power switch of the bidirectional motor. Then, the output shaft of the bidirectional motor drives the rotating rod to rotate, further enabling the gear to drive the two racks to move. When the gear rotates clockwise, the gear drives the two racks to slide inside the groove plate in the relative direction of the movement of the two racks, further enabling the two L-shaped plates to slide inside the notch and driving the two sliding cylinders to move relatively. When the gear rotates counterclockwise, the gear drives the two racks to slide inside the groove plate in the opposite direction of the movement of the two racks, further enabling the two L-shaped plates to slide inside the notch and driving the two sliding cylinders to move in the opposite direction. By controlling the rotation direction of the output shaft of the bidirectional motor, the height position of the pipeline can be controlled. Thus, when laying the pipeline, the pipeline can be laid at different heights, which is convenient for use in different situations and improves the diversity of the device.

[0023] 2. In this application, when laying pipelines, the pipelines to be laid are fixed on the device. The two second telescopic rods can slide on the outer surfaces of the two first telescopic rods respectively. By pushing the two fixed plates towards both sides respectively, at this time, the two second telescopic rods and the two circular plates respectively squeeze the two compression springs. Place the pipeline in the middle of the two fixed plates, release the pushing of the two fixed plates, and the elastic forces of the two compression springs squeeze the two second telescopic rods, further pushing the two fixed plates, so that the two fixed plates clamp the outer surface of the pipeline, initially fixing the pipeline. The two sliding plates can slide inside the opposite sides of the fixed frame, and the second arc-shaped plate can slide on the outer surfaces of the two threaded rods. At this time, rotate the two rotating cylinders clockwise respectively, further making the two rotating cylinders move towards the first arc-shaped plate on the outer surfaces of the two threaded rods. When the two rotating cylinders cannot rotate, the two fixed plates completely fix the pipeline. Thus, when laying pipelines, the pipeline is fixed without manual support, and it is fixed on the installed pipeline, improving the convenience of pipeline laying. At the same time, due to the flexibility of the two fixed plates, pipelines of different specifications can be fixed, improving the practicability of the device. Description of the Drawings

[0024] Figure 1 It is a side view three-dimensional structure schematic diagram of a municipal rain and sewage pipeline laying device proposed by this application.

[0025] Figure 2 It is a front view three-dimensional structure schematic diagram of a municipal rain and sewage pipeline laying device proposed by this application.

[0026] Figure 3 It is a sectional three-dimensional structure schematic diagram of the moving seat in a municipal rain and sewage pipeline laying device proposed by this application.

[0027] Figure 4 It is a sectional three-dimensional structure schematic diagram of the moving seat in a municipal rain and sewage pipeline laying device proposed by this application.

[0028] Figure 5 It is a sectional and three-dimensional structure schematic diagram of the moving seat in a municipal rain and sewage pipeline laying device with the fixed frame removed.

[0029] Figure 6 For this application Figure 2 Enlarged view at A in

[0030] Figure 7 For this application Figure 3 Enlarged view at B in

[0031] Legend Explanation: 1. Moving seat; 2. Handle; 201. Groove plate; 202. Rack; 203. Fixed rod; 204. Bidirectional motor; 205. Rotating rod; 206. Gear; 207. Cross bar; 208. Sliding cylinder; 209. First connecting shaft; 210. Transmission plate; 211. Second connecting shaft; 212. Connecting plate; 213. L-shaped plate; 214. Notch; 3. Fixed frame; 301. Sliding plate; 302. First arc plate; 303. Second arc plate; 304. Threaded rod; 305. Rotating cylinder; 306. First telescopic rod; 307. Second telescopic rod; 308. Fixed plate; 309. Round plate; 310. Compression spring. Detailed Implementation Manner

[0032] In order to more clearly understand the above-mentioned objects, features, and advantages of the present application, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0033] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the present application is not limited by the specific embodiments disclosed in the following specification.

[0034] Embodiment 1, as Figures 1 to 7 shown, the present application provides a municipal rain and sewage pipeline laying device, and the device includes:

[0035] Moving seat 1;

[0036] Two groove plates 201, fixedly arranged at the inner wall of one side of the moving seat 1, and racks 202 are slidably arranged on the opposite sides of the two groove plates 201, and the two racks 202 can slide on the opposite sides of the two groove plates 201;

[0037] Two fixed rods 203, fixedly arranged on one side of the inner wall of the moving seat 1, and a bidirectional motor 204 is installed on the opposite sides of the two fixed rods 203. The two fixed rods 203 support the bidirectional motor 204 so that it is installed inside the moving seat 1, and the output shaft of the bidirectional motor 204 can rotate forward and backward;

[0038] Rotating rod 205, fixedly arranged on the output shaft of the bidirectional motor 204, and a gear 206 is fixedly sleeved on the outer surface of the rotating rod 205. Turn on the external power switch of the bidirectional motor 204, and then the output shaft of the bidirectional motor 204 drives the rotating rod 205 to rotate, and further makes the gear 206 rotate;

[0039] The cross bar 207 is fixedly arranged on both sides of the inner wall of the moving seat 1, and two sliding cylinders 208 are movably sleeved on the outer surface of the sliding cylinder 208. The two sliding cylinders 208 can slide on the outer surface of the cross bar 207. The sliding directions of the two sliding cylinders 208 on the outer surface of the cross bar 207 are different, and the height at which the pipeline is located is also different;

[0040] Two first connecting shafts 209 are respectively fixedly arranged at the inner walls of the two sliding cylinders 208, and transmission plates 210 are movably sleeved on the outer surfaces of the two first connecting shafts 209. When the two sliding cylinders 208 move, they drive the two transmission plates 210 to move. The two transmission plates 210 can rotate respectively with the two first connecting shafts 209 as axes;

[0041] Two second connecting shafts 211 are movably embedded in one side of the two transmission plates 210, and connecting plates 212 are fixedly arranged at both ends of the two second connecting shafts 211. The two transmission plates 210 can rotate with the two second connecting shafts 211 as axes. When the two sliding cylinders 208 slide in the opposite directions on the outer surface of the cross bar 207, the two transmission plates 210 push the connecting plate 212 upward. When the two sliding cylinders 208 slide in the opposite directions on the outer surface of the cross bar 207, the two transmission plates 210 pull the connecting plate 212 downward.

[0042] As Figures 1 to 7 shown, the outer surface of the gear 206 meshes with one side of the two racks 202. One end of the rotating rod 205 is arranged at the center of the inner wall of one side of the moving seat 1 through a bearing. A handle 2 is fixedly arranged on one side of the moving seat 1. The rotating rod 205 can rotate because of the bearing. When the gear 206 rotates, it drives the two racks 202 to move. The handle 2 facilitates pushing the whole device. When the gear 206 rotates clockwise, the gear 206 drives the two racks 202 to slide inside the groove plate 201, and the direction is the relative direction of the movement of the two racks 202, further enabling the two L-shaped plates 213 to slide inside the notch 214 and driving the two sliding cylinders 208 to move relatively. When the gear 206 rotates counterclockwise, the gear 206 drives the two racks 202 to slide inside the groove plate 201, and the direction is the opposite direction of the movement of the two racks 202.

[0043] As Figures 1 to 7 shown, L-shaped plates 213 are fixedly arranged on the opposite sides of the two racks 202. The two L-shaped plates 213 are respectively fixedly arranged on the outer surfaces of the two sliding cylinders 208. Notch openings 214 are formed on the opposite sides of the two groove plates 201. One side of the two L-shaped plates 213 is slidably arranged on the inner walls of the two notch openings 214. When the two racks 202 move, they drive the two sliding cylinders 208 to move through the two L-shaped plates 213. The two L-shaped plates 213 can slide inside the two notch openings 214, and the two notch openings 214 limit the positions of the movement of the two L-shaped plates 213.

[0044] AsFigures 1 to 7 As shown, a fixing frame 3 is fixedly arranged on one side of the connecting plate 212. Sliding plates 301 are movably sleeved on the opposite sides of the fixing frame 3. When the connecting plate 212 moves to different heights, it drives the fixing frame 3 to move. The pipeline is fixed on the fixing frame 3, and further, the pipeline can be laid at different heights. The two sliding plates 301 can slide inside the opposite sides of the fixing frame 3.

[0045] As Figures 1 to 7 shown, a first arc-shaped plate 302 is fixedly arranged on one side of one of the sliding plates 301, and a second arc-shaped plate 303 is fixedly arranged on one side of the other sliding plate 301. The two sliding plates 301 can move, so that the two second arc-shaped plates 303 can also move.

[0046] As Figures 1 to 7 shown, two threaded rods 304 are fixedly arranged on one side of the first arc-shaped plate 302. The two threaded rods 304 are movably embedded on one side of the second arc-shaped plate 303. Threaded sleeves 305 are sleeved on the outer surfaces of the two threaded rods 304. The second arc-shaped plate 303 can slide on the outer surfaces of the two threaded rods 304. Rotate the two threaded sleeves 305 clockwise, and further make the two threaded sleeves 305 move towards the first arc-shaped plate 302 on the outer surfaces of the two threaded rods 304. When the two threaded sleeves 305 cannot rotate, the two fixing plates 308 completely fix the pipeline.

[0047] As Figures 1 to 7 shown, first telescopic rods 306 are fixedly arranged on the inner walls of the first arc-shaped plate 302 and the second arc-shaped plate 303. Second telescopic rods 307 are movably sleeved on the outer surfaces of the two first telescopic rods 306. Fixing plates 308 are fixedly arranged on the opposite sides of the two second telescopic rods 307. The two second telescopic rods 307 can slide on the outer surfaces of the two first telescopic rods 306 respectively. The two fixing plates 308 clamp the outer surface of the pipeline to fix the pipeline.

[0048] As Figures 1 to 7 shown, circular plates 309 are fixedly sleeved on the outer surfaces of the two first telescopic rods 306. Compression springs 310 are fixedly arranged on the opposite sides of the two circular plates 309. The two compression springs 310 are movably sleeved on the outer surfaces of the two first telescopic rods 306. The two circular plates 309 support the two compression springs 310 and push the two fixing plates 308 towards both sides respectively. At this time, the two second telescopic rods 307 and the two circular plates 309 respectively compress the two compression springs 310. When the two compression springs 310 are compressed, they generate reverse forces. The two compression springs 310 can slide on the outer surfaces of the two first telescopic rods 306, and the two circular plates 309 support the two compression springs 310.

[0049] Working principle: When laying pipelines, the pipeline to be laid is fixed on the device. The two second telescopic rods 307 can slide on the outer surfaces of the two first telescopic rods 306 respectively. By pushing the two fixing plates 308 to both sides respectively, at this time, the two second telescopic rods 307 and the two circular plates 309 respectively squeeze the two compression springs 310. Place the pipeline in the middle of the two fixing plates 308, release the pushing of the two fixing plates 308, and the elastic force of the two compression springs 310 squeezes the two second telescopic rods 307, further pushing the two fixing plates 308, so that the two fixing plates 308 clamp the outer surface of the pipeline, and initially fix the pipeline. The two sliding plates 301 can slide inside the opposite sides of the fixing frame 3. The second arc-shaped plate 303 can slide on the outer surfaces of the two threaded rods 304. At this time, rotate the two rotating cylinders 305 clockwise respectively, and further make the two rotating cylinders 305 move towards the first arc-shaped plate 302 on the outer surfaces of the two threaded rods 304. When the two rotating cylinders 305 cannot rotate, the two fixing plates 308 completely fix the pipeline. Thus, when laying the pipeline, the pipeline is fixed, without manual support of the pipeline, and it is fixed on the already installed pipeline, improving the convenience of pipeline laying. At the same time, due to the flexibility of the two fixing plates 308, pipelines of different specifications can be fixed, improving the practicality of the device. After the pipeline is fixed, the moving seat 1 can be pushed to the laying location through the handle 2. The two sliding cylinders 208 can slide on the outer surface of the cross bar 207. The two transmission plates 210 can rotate respectively with the two first connecting shafts 209 or the two second connecting shafts 211 as the axes. Thus, when the two sliding cylinders 208 slide in the opposite directions on the outer surface of the cross bar 207, the two transmission plates 210 push the connecting plate 212 upwards, and when the two sliding cylinders 208 slide in the opposite directions on the outer surface of the cross bar 207, the two transmission plates 210 pull the connecting plate 212 downwards, thereby controlling the height position of the laid pipeline. The output shaft of the bidirectional motor 204 can rotate forward and backward. The two fixed rods 203 support the bidirectional motor 204 and install it inside the moving seat 1. Turn on the external power switch of the bidirectional motor 204. Then, the output shaft of the bidirectional motor 204 drives the rotating rod 205 to rotate, and further makes the gear 206 drive the two racks 202 to move. When the gear 206 rotates clockwise, the gear 206 drives the two racks 202 to slide inside the groove plate 201, and the direction is the relative direction of the movement of the two racks 202, further making the two L-shaped plates 213 slide inside the notch 214, driving the two sliding cylinders 208 to move relatively. When the gear 206 rotates counterclockwise, the gear 206 drives the two racks 202 to slide inside the groove plate 201, and the direction is the opposite direction of the movement of the two racks 202, further making the two L-shaped plates 213 slide inside the notch 214, driving the two sliding cylinders 208 to move in the opposite direction. By controlling the rotation direction of the output shaft of the bidirectional motor 204, the height position of the pipeline can be controlled. Thus, when laying the pipeline, the pipeline can be laid at different heights.It is convenient for use in different situations and improves the diversity of the device.

[0050] The above are only the preferred embodiments of the application, and it is not a limitation to the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A municipal rain and sewage pipeline laying device, characterized in that, The device includes: A moving seat (1); Two groove plates (201), fixedly arranged at the inner wall of one side of the moving seat (1), and racks (202) are slidably arranged on the opposite sides of the two groove plates (201); Two fixed rods (203), fixedly arranged on one side of the inner wall of the moving seat (1), and a bidirectional motor (204) is installed on the opposite sides of the two fixed rods (203); A rotating rod (205), fixedly arranged on the output shaft of the bidirectional motor (204), and a gear (206) is fixedly sleeved on the outer surface of the rotating rod (205); A cross bar (207), fixedly arranged on both sides of the inner wall of the moving seat (1), and two sliding cylinders (208) are movably sleeved on the outer surface of the sliding cylinder (208); Two first connecting shafts (209), respectively fixedly arranged at the inner walls of the two sliding cylinders (208), and transmission plates (210) are movably sleeved on the outer surfaces of the two first connecting shafts (209); Two second connecting shafts (211), movably embedded in one side of the two transmission plates (210), and connecting plates (212) are fixedly arranged at both ends of the two second connecting shafts (211).

2. The municipal rain and sewage pipeline laying device according to claim 1, characterized in that: The outer surface of the gear (206) meshes with one side of the two racks (202), one end of the rotating rod (205) is arranged at the center of the inner wall of one side of the moving seat (1) through a bearing, and a handle (2) is fixedly arranged on one side of the moving seat (1).

3. A municipal rain and sewage pipeline laying device according to claim 1, characterized in that: L-shaped plates (213) are fixedly arranged on the opposite sides of the two racks (202), the two L-shaped plates (213) are respectively fixedly arranged on the outer surfaces of the two sliding cylinders (208), notch openings (214) are formed on the opposite sides of the two groove plates (201), and one side of the two L-shaped plates (213) is slidably arranged at the inner walls of the two notch openings (214).

4. A municipal rain and sewage pipeline laying device according to claim 1, characterized in that: A fixing frame (3) is fixedly arranged on one side of the connecting plate (212), and sliding plates (301) are movably sleeved on the opposite sides of the fixing frame (3).

5. The municipal rain and sewage pipeline laying device according to claim 4, characterized in that: A first arc-shaped plate (302) is fixedly arranged on one side of one of the sliding plates (301), and a second arc-shaped plate (303) is fixedly arranged on one side of the other sliding plate (301).

6. The municipal rain and sewage pipeline laying device according to claim 5, characterized in that: Two threaded rods (304) are fixedly arranged on one side of the first arc-shaped plate (302), the two threaded rods (304) are movably embedded in one side of the second arc-shaped plate (303), and rotating cylinders (305) are threadedly sleeved on the outer surfaces of the two threaded rods (304).

7. A municipal rain and sewage pipeline laying device according to claim 5, characterized in that: First telescopic rods (306) are fixedly arranged at the inner walls of the first arc-shaped plate (302) and the second arc-shaped plate (303), second telescopic rods (307) are movably sleeved on the outer surfaces of the two first telescopic rods (306), and fixing plates (308) are fixedly arranged on the opposite sides of the two second telescopic rods (307).

8. A municipal rain and sewage pipeline laying device according to claim 7, characterized in that: The outer surfaces of both of the first telescopic rods (306) are fixedly sleeved with circular plates (309). On the opposite sides of both of the circular plates (309), compression springs (310) are fixedly arranged. The two compression springs (310) are movably sleeved on the outer surfaces of the two first telescopic rods (306).

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