A civil construction watering device

Abstract

The present invention belongs to the technical field of civil engineering construction equipment, and specifically relates to a civil engineering construction irrigation device, including a vehicle frame, a water tank, a film coating device and a water spray pipe; the vehicle frame is rotatably connected to a support shaft, and a water pipe bracket is fixed on the support shaft; the water spray pipe is provided with a nozzle; the water spray pipe is provided with a telescopic sleeve, one end of the telescopic sleeve is fixedly connected to the water spray pipe, and a blocking plate is rotatably connected to the water spray pipe; the film coating device includes a fixed bracket, a drive shaft and a film coating support frame, the fixed bracket is fixedly connected to the vehicle frame, and the drive shaft is rotatably connected to the upper end of the fixed bracket; the film coating support frame is fixedly connected to the front end of the drive shaft; a connecting shaft is fixed on the film coating support frame, and a protective film is sleeved on the connecting shaft. The civil engineering construction irrigation device can effectively prevent equipment and personnel from stepping on concrete during water spraying by providing a reversible water spray pipe. The protective film after laying is a whole, which is more convenient when the protective film is removed as a whole at a later stage.

Description

Technical Field

[0001] The invention belongs to the technical field of civil construction equipment, and in particular relates to a civil construction irrigation device. Background Art

[0002] Concrete pouring and curing are crucial steps in civil construction. Traditional concrete curing methods are primarily divided into two categories: water spraying and film coating. Water spraying typically involves manual application of a handheld water hose or fixed nozzle. During operation, workers and equipment can easily step directly on the concrete surface, which has not yet reached sufficient strength. This can damage the concrete and affect its quality. Furthermore, manual operation is inefficient, and uniformity of the water spray is difficult to ensure.

[0003] The film curing method is to lay the protective film flat on the concrete, but there are many problems in the common film curing process. On the one hand, the protective film is often not tightly attached to the concrete, resulting in poor curing effect; on the other hand, the protective film is often disassembled into several strips for laying, and it needs to be removed one by one during the later stage, which is not only time-consuming and labor-intensive, but also easy to cause damage and waste of the protective film. Some existing film curing devices also have problems such as complex structure, inconvenient operation and difficulty in switching between different curing stages. They cannot meet the demand for efficient, convenient and reliable quality curing of concrete in modern civil construction. Summary of the Invention

[0004] In response to the above technical problems, the present invention provides a civil construction pouring device, which aims to solve the problems of easy trampling of concrete, uneven water spraying, loose film adhesion and inconvenient film removal in the existing concrete curing method in civil construction.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A civil engineering construction irrigation device comprises a vehicle frame, a water tank, a film covering device and a water spray pipe; the vehicle frame is rotatably connected to a support shaft, and a water pipe bracket is fixed to the support shaft; one end of the water spray pipe is rotatably connected to the water pipe bracket via a connecting ring, and the other end of the water spray pipe is connected to the water pipe bracket via a fixing assembly;

[0007] The water spray pipe is provided with a nozzle; a telescopic sleeve is provided on the outer surface of the water spray pipe, one end of the telescopic sleeve is fixedly connected to the water spray pipe, and a blocking plate is rotatably connected to the water spray pipe; when the telescopic sleeve is extended and connected to the blocking plate, a water storage chamber is formed between the telescopic sleeve and the water spray pipe; the water tank is fixed to the vehicle frame, the water spray pipe is connected to a rotary joint, and the rotary joint is connected to the water pump in the water tank through a water pipe; the vehicle frame is provided with a walking wheel mechanism;

[0008] The coating device includes a fixed bracket, a driving shaft and a coating support frame, the fixed bracket is fixedly connected to the vehicle frame, and the driving shaft is rotatably connected to the upper end of the fixed bracket; the coating support frame is fixedly connected to the front end of the driving shaft; a connecting shaft is fixed on the coating support frame, and a protective film is sleeved on the connecting shaft.

[0009] The fixing assembly includes a U-shaped opening frame and a fixing screw. The other end of the water spray pipe is connected to the U-shaped opening frame, and the fixing screw is threadedly connected to the upper end of the U-shaped opening frame.

[0010] The walking wheel mechanism includes a supporting walking wheel and an adjusting walking wheel, the supporting walking wheel is rotatably connected to the frame; the water pipe bracket is fixedly connected to the wheel frame, and the adjusting walking wheel is rotatably connected to the wheel frame; an adjusting device is provided between the supporting shaft and the frame.

[0011] The adjusting device comprises an adjusting worm and an adjusting worm wheel, wherein the adjusting worm is rotatably connected to the vehicle frame, and the adjusting worm wheel is fixedly connected to the support shaft and meshes with the adjusting worm.

[0012] A limit swing arm is hinged on the fixed bracket, and a spring is provided between the limit swing arm and the fixed bracket; the limit swing arm is connected to the support shaft through a linkage assembly.

[0013] The limiting swing arm is fixedly connected to a limiting wheel, which limits the rotation of the protective film after contacting the limiting wheel with the protective film; the linkage assembly includes a shift rod and a vertical rod, the shift rod is fixedly connected to the support shaft, and the shift rod pushes the limiting swing arm to rotate through the vertical rod; the vertical rod is slidably connected to the fixed bracket.

[0014] A limiting pin is fixedly connected to the limiting swing arm, and a limiting groove cooperating with the limiting pin is provided on the driving shaft.

[0015] The driving shaft is provided with a limiting plane, the limiting swing arm is fixedly connected with a limiting pressure plate matched with the limiting plane, and the fixed bracket is fixedly connected with a limiting baffle matched with the limiting swing arm.

[0016] The driving shaft is fixedly connected to a movable shaft, the diameter of which is smaller than that of the driving shaft; a vertical plate is fixedly connected to the frame, the movable shaft is slidably connected to the vertical plate, and a reset spring is provided between the movable shaft and the vertical plate.

[0017] The telescopic sleeve is threadedly connected with a fixing screw; the limiting wheel is fixedly connected to the limiting swing arm through a spring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The civil construction pouring device is equipped with a reversible water spray pipe, and cooperates with a limit protrusion and a limit support plate. When spraying water, it can effectively prevent equipment and personnel from stepping on the concrete, reduce damage to the concrete surface, and ensure the quality of concrete molding.

[0020] During film curing, the design of the film covering device ensures a tighter fit between the protective film and the concrete. The expansion sleeve extends and threads onto the blocking plate to form a sealed water storage chamber. Once water is injected, the water in the expansion sleeve compresses the protective film, thereby improving the loose fit between the protective film and the concrete and enhancing the curing quality. The protective film is laid as a single piece, making it easier to remove the entire film later, saving time and effort, compared to laying it flat in strips.

[0021] When laying protective film on corner and straight sections, the linkage assembly, limit swing arm, limit pressure plate, and limit plane cooperate to control the rotation and locking of the drive shaft. This prevents the drive shaft from rotating randomly, which could cause the protective film to twist, during straight section laying. While this allows for easy twisting of the protective film during corner section laying, it ensures smooth and uniform laying of the protective film and improves the efficiency and quality of the film laminating operation. Simultaneously, by pushing the movable shaft forward, the limit plane separates from the limit pressure plate, enabling the drive shaft to rotate. After completing the laying of the protective film on the corner section, removing the external force resets the device, again restricting the drive shaft's rotation and ensuring normal laying of the straight section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of one aspect of the present invention;

[0023] Figure 2 It is a structural diagram of another aspect of the present invention;

[0024] Figure 3 This is a schematic diagram of the telescopic sleeve of the present invention in an extended state;

[0025] Figure 4 yes Figure 1 A partial enlarged view of point A in the middle;

[0026] Figure 5 yes Figure 1 A partial enlarged view of point B in the middle;

[0027] Figure 6 yes Figure 2 A partial enlarged view of point C in the middle;

[0028] Figure 7 is a side view of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection structure between the laminating device and the linkage assembly in one direction of the present invention;

[0030] Figure 9 This is a schematic diagram of the connection structure between the laminating device and the linkage assembly in another direction of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of the protective film after laying;

[0032] Among them: 1 is a frame, 2 is a water tank, 3 is a coating device, 30 is a fixed bracket, 31 is a drive shaft, 32 is a coating support frame, 33 is a connecting shaft, 34 is a protective film, 35 is a limiting groove, 36 is a limiting plane, 4 is a water spray pipe, 41 is a connecting ring, 42 is a rotating shaft, 43 is a limiting protrusion, 5 is a supporting shaft, 6 is a water pipe bracket, 60 is a limiting support plate, 7 is a nozzle, 8 is a telescopic sleeve, 9 is a blocking plate, 10 is a rotary joint, 11 is a water pipe, 12 is a walking wheel mechanism, 120 is a supporting walking wheel, 121 is an adjusting walking wheel, 122 is the wheel frame, 13 is the fixing component, 130 is the U-shaped opening frame, 131 is the fixing screw, 14 is the adjusting device, 140 is the adjusting worm, 141 is the adjusting worm wheel, 15 is the limiting swing arm, 150 is the limiting wheel, 16 is the spring, 17 is the linkage component, 170 is the shift rod, 171 is the vertical rod, 172 is the limiting pin, 173 is the limiting pressure plate, 174 is the limiting baffle, 18 is the moving shaft, 19 is the limiting screw, 20 is the spring, 21 is the vertical plate, 22 is the return spring, D is the straight section paving, E is the corner section paving, and F is the concrete area. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] like Figures 1 to 3 As shown, a civil engineering construction irrigation device includes a frame 1, a water tank 2, a film covering device 3 and a water pipe 4. A support shaft 5 is rotatably connected to the frame 1, and a water pipe bracket 6 is fixed to the support shaft 5. One end of the water pipe 4 is rotatably connected to the water pipe bracket 6 via a connecting ring 41, and the other end of the water pipe 4 is detachably connected to the water pipe bracket 6 via a fixing assembly 13. Specifically: the connecting ring 41 is sleeved on the outside of the water pipe 4, and a rotating shaft 42 rotatably connected to the water pipe bracket 6 is fixed to the connecting ring 41. A walking wheel mechanism 12 is provided on the frame 1, which can push the frame 1 to achieve overall movement.

[0035] The water tank 2 is fixed to the vehicle frame 1. A nozzle 7 is provided on a water spray pipe 4. The water spray pipe 4 is connected to a rotary joint 10. The rotary joint 10 is connected to a water pump in the water tank 2 via a water pipe 11. The water in the water tank 2 is pumped through the water pipe 11, the rotary joint 10, and the water spray pipe 4, and then sprayed out from the nozzle 7, thereby pouring the concrete, that is, implementing concrete curing.

[0036] If the concrete is not strong enough after pouring, in order to prevent people from stepping on it, the other end of the water pipe 4 can be separated from the water pipe bracket 6; then the water pipe 4 can be turned 180° so that the water pipe 4 is located on one side of the vehicle frame 1. Finally, the water pipe 4 is rotated 180° so that the nozzle 7 on the water pipe 4 is located at the bottom. Specifically: a limiting protrusion 43 is provided on the rotating shaft 42, and a limiting support plate 60 is fixed on the water pipe bracket 6; after the water pipe 4 is turned 180°, the limiting protrusion 43 contacts the limiting support plate 60, thereby limiting the water pipe 4 from further turning. After the water pipe 4 is turned over, when the watering operation is carried out again, the watering device can be used to water from one side of the concrete, thereby preventing the watering device and workers from stepping on the concrete.

[0037] The curing process is divided into water spraying curing and film covering curing. The water spraying curing can be achieved through the above structure. At the same time, the watering device is also provided with a film covering device 3, which can achieve film covering curing.

[0038] During the common laminating process, the protective film 34 may not adhere tightly to the concrete. Moreover, the protective film 34 may be broken into several strips and laid flat on the concrete, which may cause inconvenience if the protective film 34 is removed later.

[0039] The present coating device 3 can overcome the above-mentioned defects. It specifically includes a fixed bracket 30, a drive shaft 31, and a coating support frame 32. The fixed bracket 30 is fixedly connected to the vehicle frame 1, and the drive shaft 31 is rotatably connected to the upper end of the fixed bracket 30. The coating support frame 32 is fixedly connected to the front end of the drive shaft 31. A connecting shaft 33 is fixed to the coating support frame 32, and a protective film 34 is sleeved on the connecting shaft 33. Specifically, nuts are provided at both ends of the connecting shaft 33. When a roll of protective film 34 is used up, the nuts are removed to separate the connecting shaft 33 from the coating support frame 32, and then a new protective film 34 can be replaced.

[0040] One end of the telescopic sleeve 8 is fixedly connected to the water spray pipe 4, and the other end of the telescopic sleeve 8 is closed. A blocking plate 9 is rotatably connected to the water spray pipe 4. The blocking plate 9 can only rotate and cannot move axially along the water spray pipe 4. The blocking plate 9 blocks the other end of the telescopic sleeve 8. Specifically, the blocking plate 9 has an external thread, and the other end of the telescopic sleeve 8 has a corresponding internal thread; the threaded connection between the two is achieved by rotating the blocking plate 9.

[0041] The coating process of this coating device 3 is as follows: First, the telescopic sleeve 8 is extended and threadedly connected to the blocking plate 9, forming a sealed water storage chamber between the telescopic sleeve 8 and the water spray pipe 4. Next, the water pump is turned on to spray water from the water tank 2 into the water storage chamber through the nozzle 7. Once the water storage chamber is filled with water, the water pump is turned off. Finally, one end of the protective film 34 is passed under the telescopic sleeve 8, and the entire assembly is pulled to begin the coating operation.

[0042] During the film coating process, the protective film 34 can be compressed by the telescopic sleeve 8 due to the water in the sleeve, so that the protective film 34 can better fit the ground. After the protective film 34 is laid from the left end of the concrete to the right end (straight section laying D), the protective film 34 is pulled and moved as a whole until it extends beyond the concrete area F. Then, the protective film 34 is twisted by rotating the drive shaft 31, and then the whole is pulled to turn (corner section laying E), and the protective film 34 is laid from the right end of the concrete to the left end. Figure 10 As shown, after the protective film 34 is laid, it is still a complete whole, which can be easily removed as a whole later.

[0043] Further, if Figure 4 As shown, to prevent the telescopic sleeve 8 from moving freely after retraction, a limit screw 19 is threadedly connected to the telescopic sleeve 8. By rotating the limit screw 19, it passes through the other end of the telescopic sleeve 8 and abuts against the water spray pipe 4, thereby limiting its movement. When the telescopic sleeve 8 needs to be extended, the limit screw 19 can be removed.

[0044] Further, if Figure 5 As shown, the fixing assembly 13 includes a U-shaped opening frame 130 and a fixing screw 131. The other end of the water spray pipe 4 is connected to the U-shaped opening frame 130. The fixing screw 131 is threadedly connected to the upper end of the U-shaped opening frame 130. The fixing screw 131 can block the opening of the U-shaped opening frame 130, blocking the other end of the water spray pipe 4. By removing the fixing screw 131, the other end of the water spray pipe 4 can be separated from the water pipe bracket 6.

[0045] Further, if Figure 1 As shown, the wheel mechanism 12 includes a supporting wheel 120 and an adjusting wheel 121. The supporting wheel 120 is rotatably connected to the vehicle frame 1. A wheel frame 122 is fixedly connected to the water pipe bracket 6, and the adjusting wheel 121 is rotatably connected to the wheel frame 122. An adjusting device 14 is provided between the support shaft 5 and the vehicle frame 1. During watering and maintenance operations, the adjusting wheel 121 is adjusted to contact the ground. During film coating and maintenance operations, the adjusting device 14 rotates the support shaft 5, causing the extended telescopic sleeve 8 to contact the ground, thereby compressing the protective film 34.

[0046] Further, if Figure 5As shown, the adjusting device 14 includes an adjusting worm 140 and an adjusting worm wheel 141. The adjusting worm 140 is rotatably connected to the vehicle frame 1, and the adjusting worm wheel 141 is fixedly connected to the support shaft 5 and meshes with the adjusting worm 140. By rotating the adjusting worm 140, the support shaft 5 and the water pipe bracket 6 can be driven to rotate, so that the adjusting running wheel 121 or the telescopic sleeve 8 contacts the ground.

[0047] Further, if Figures 7 to 9 As shown, to prevent the protective film 34 from rotating randomly during the watering and curing process, a limit swing arm 15 is hingedly connected to the fixed bracket 30, and a spring 16 is provided between the limit swing arm 15 and the fixed bracket 30. The spring 16 is specifically a tension spring, with its ends hingedly connected to the limit swing arm 15 and the fixed bracket 30, respectively. The limit swing arm 15 is connected to the support shaft 5 via a linkage assembly 17. Specifically, a limit wheel 150 is fixedly connected to the limit swing arm 15. The limit swing arm 15 is pulled down by the tension spring, so that the limit wheel 150 contacts the protective film 34 and limits the rotation of the protective film 34.

[0048] During film coating maintenance, the support shaft 5 is rotated by the adjusting device 14, and the support shaft 5 drives the limiting swing arm 15 through the linkage assembly 17 to move the limiting wheel 150 downward and separate from the protective film 34, so that the protective film 34 can rotate freely.

[0049] The linkage assembly 17 includes a shift rod 170 and a vertical rod 171. The shift rod 170 is fixedly connected to the support shaft 5. The shift rod 170 pushes the limiting swing arm 15 to rotate through the vertical rod 171, so that the limiting wheel 150 moves downward and separates from the protective film 34; the vertical rod 171 is slidably connected to the fixed bracket 30.

[0050] To prevent the drive shaft 31 from rotating freely during the water spraying and curing process, a limit pin 172 is fixedly connected to the limit swing arm 15. A limit slot 35 is provided on the drive shaft 31 to engage with the limit pin 172. During water spraying and curing, the limit pin 172 is located within the limit slot 35, restricting the rotation of the drive shaft 31. When film coating and curing are required, the vertical rod 171 pushes the limit swing arm 15 to rotate, and the limit pin 172 is removed from the limit slot 35, allowing the drive shaft 31 to rotate automatically.

[0051] During the film covering maintenance operation, the drive shaft 31 only needs to rotate when laying the corner section E; therefore, in order to prevent the drive shaft 31 from rotating randomly during the straight section D, which would cause the protective film 34 to twist, the following structure is also provided:

[0052] The drive shaft 31 has a limiting surface 36, and a limiting pressure plate 173 is fixedly connected to the limiting swing arm 15, which cooperates with the limiting surface 36. The fixed bracket 30 also has a limiting stopper 174 fixedly connected to the limiting swing arm 15. When the vertical rod 171 pushes the limiting swing arm 15 until it contacts the limiting stopper 174, the limiting pin 172 moves out of the limiting slot 35, and the limiting pressure plate 173 contacts the limiting surface 36; at this point, the drive shaft 31 is restricted from rotating.

[0053] A movable shaft 18 is fixedly connected to the drive shaft 31, and its diameter is smaller than that of the drive shaft 31. A vertical plate 21 is fixedly connected to the frame 1, and the movable shaft 18 is slidably connected to the vertical plate 21. A return spring 22 is provided between the movable shaft 18 and the vertical plate 21. Specifically, the return spring 22 is sleeved outside the movable shaft 18, with its ends respectively contacting (abutting) against the movable shaft 18 and the vertical plate 21. The return spring 22 does not affect the rotation of the movable shaft 18.

[0054] To twist the protective film 34, the movable shaft 18 is first pushed forward (compressing the return spring 22), causing the limiting plane 36 to move forward and separate from the limiting pressure plate 173. The movable shaft 18 is then rotated one or more times to drive the drive shaft 31, twisting the protective film 34 and laying the corner section of the protective film 34 (E). Finally, the external force is removed, and the return spring 22 releases its elastic potential energy, pushing the movable shaft 18 backward, resetting it (limiting the rotation of the drive shaft 31), and laying the straight section of the protective film 34 (D) can be performed. Specifically, a handwheel can be provided at the end of the movable shaft 18 to facilitate pushing and rotating the movable shaft 18.

[0055] Furthermore, the limiting wheel 150 is fixedly connected to the limiting swing arm 15 via the spring 20. The spring 20 can elastically press the protective film 34 against the limiting wheel 150.

[0056] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A civil construction irrigation device, characterized in that: The water spraying device comprises a vehicle frame (1), a water tank (2), a film coating device (3) and a water spraying pipe (4); a support shaft (5) is rotatably connected to the vehicle frame (1), and a water pipe bracket (6) is fixed to the support shaft (5); one end of the water spraying pipe (4) is rotatably connected to the water pipe bracket (6) via a connecting ring (41), and the other end of the water spraying pipe (4) is connected to the water pipe bracket (6) via a fixing assembly (13); The water spray pipe (4) is provided with a nozzle (7); the water spray pipe (4) is provided with a telescopic sleeve (8) on its outer shell, one end of the telescopic sleeve (8) is fixedly connected to the water spray pipe (4), and a blocking plate (9) is rotatably connected to the water spray pipe (4); when the telescopic sleeve (8) is extended and connected to the blocking plate (9), a water storage chamber is formed between the telescopic sleeve (8) and the water spray pipe (4); the water tank (2) is fixed to the vehicle frame (1), the water spray pipe (4) is connected to a rotary joint (10), and the rotary joint (10) is connected to a water pump in the water tank (2) through a water pipe (11); the vehicle frame (1) is provided with a walking wheel mechanism (12); The coating device (3) comprises a fixed bracket (30), a driving shaft (31) and a coating support frame (32), wherein the fixed bracket (30) is fixedly connected to the vehicle frame (1), and the driving shaft (31) is rotatably connected to the upper end of the fixed bracket (30); the coating support frame (32) is fixedly connected to the front end of the driving shaft (31); a connecting shaft (33) is fixed on the coating support frame (32), and a protective film (34) is sleeved on the connecting shaft (33).

2. A civil construction watering device according to claim 1, characterized in that: The fixing assembly (13) comprises a U-shaped opening frame (130) and a fixing screw (131), the other end of the water spray pipe (4) is connected to the U-shaped opening frame (130), and the fixing screw (131) is threadedly connected to the upper end of the U-shaped opening frame (130).

3. A civil construction irrigation device according to claim 1, characterized in that: The travel wheel mechanism (12) comprises a supporting travel wheel (120) and an adjusting travel wheel (121), wherein the supporting travel wheel (120) is rotatably connected to the vehicle frame (1); a wheel frame (122) is fixedly connected to the water pipe bracket (6), and the adjusting travel wheel (121) is rotatably connected to the wheel frame (122); and an adjusting device (14) is provided between the support shaft (5) and the vehicle frame (1).

4. A civil construction irrigation device according to claim 3, characterized in that: The adjusting device (14) comprises an adjusting worm (140) and an adjusting worm wheel (141), wherein the adjusting worm (140) is rotationally connected to the vehicle frame (1), and the adjusting worm wheel (141) is fixedly connected to the support shaft (5) and meshes with the adjusting worm (140).

5. The civil construction irrigation device according to claim 1, characterized in that: A limit swing arm (15) is hingedly connected to the fixed bracket (30), and a spring (16) is provided between the limit swing arm (15) and the fixed bracket (30); the limit swing arm (15) and the support shaft (5) are connected via a linkage assembly (17).

6. A civil construction irrigation device according to claim 5, characterized in that: The limiting swing arm (15) is fixedly connected to a limiting wheel (150), and the limiting wheel (150) limits the rotation of the protective film (34) after contacting the protective film (34); the linkage assembly (17) comprises a shifting rod (170) and a vertical rod (171); the shifting rod (170) is fixedly connected to the support shaft (5), and the shifting rod (170) pushes the limiting swing arm (15) to rotate through the vertical rod (171); the vertical rod (171) is slidably connected to the fixed bracket (30).

7. The civil construction irrigation device according to claim 5, characterized in that: A limiting pin (172) is fixedly connected to the limiting swing arm (15), and a limiting groove (35) cooperating with the limiting pin (172) is provided on the driving shaft (31).

8. The civil construction irrigation device according to claim 5, characterized in that: The driving shaft (31) has a limiting plane (36), the limiting swing arm (15) is fixedly connected to a limiting pressure plate (173) that cooperates with the limiting plane (36), and the fixed bracket (30) is fixedly connected to a limiting baffle (174) that cooperates with the limiting swing arm (15).

9. A civil construction irrigation device according to claim 8, characterized in that: The driving shaft (31) is fixedly connected to a movable shaft (18), and the diameter of the movable shaft (18) is smaller than the diameter of the driving shaft (31); a vertical plate (21) is fixedly connected to the vehicle frame (1), the movable shaft (18) and the vertical plate (21) are slidably connected, and a return spring (22) is provided between the movable shaft (18) and the vertical plate (21).

10. The civil construction irrigation device according to claim 6, characterized in that: The telescopic sleeve (8) is threadedly connected to a limit screw (19); the limit wheel (150) is fixedly connected to the limit swing arm (15) via a spring (20).

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