Automatic back-of-curb mortar pouring equipment

Abstract

The application discloses a curb back grey automatic pouring equipment, and relates to the technical field of building construction, which comprises a vehicle body, a concrete pouring device fixed at the front of the vehicle body, a trowelling device detachably arranged at the rear of the vehicle body, and a vibrating device arranged between the concrete pouring device and the trowelling device; the concrete pouring device comprises a pouring structure detachably arranged on the vehicle body, a pouring channel fixed in the vehicle body, and a material guiding structure arranged on the side wall of the vehicle body. The application has the effect of improving the time and labor consumption of curb construction.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to an automatic mortar pouring device for curb stones. Background Technology

[0002] Curbstones are marker stones placed between the road surface and other structures. They are generally required between the median strip and the road surface, and between the sidewalk and the road surface in urban roads. There are typically two types of existing curbstones: precast concrete and processed stone.

[0003] Curbstone construction usually takes place after the road paving is completed. Grooves are dug on both sides of the road to install the curbstones. After the curbstones are installed in the grooves, concrete is poured into the grooves. At this time, the bottom of the curbstone is poured and fixed in the concrete, thus completing the curbstone construction.

[0004] When pouring concrete in the trench, formwork needs to be erected on the sidewalls of the trench, and concrete is poured between the formwork and the curbstone. The concrete is then vibrated and smoothed. After the concrete has solidified to the design strength, the curbstone construction is completed. After the curbstone is placed in the trench, the remaining space is small. Construction workers need to erect formwork, pour concrete, and vibrate and smooth it within the remaining trench space. Due to the limited operating space, the construction efficiency is low, and the construction period is extended.

[0005] Since curbstone construction is a landscaping project, the requirements for construction precision are not high. Therefore, a lot of manpower is invested in concrete pouring, resulting in a low cost-effectiveness of construction. Summary of the Invention

[0006] To address the issues of time and labor costs associated with curbstone construction, this application provides an automatic backfilling device for curbstones.

[0007] This application provides an automatic backfilling device for curb stones, which adopts the following technical solution:

[0008] An automatic backfilling device for curb stones includes a vehicle body, on which are mounted:

[0009] A concrete pouring device, fixed to the front of the vehicle body, includes a pouring structure detachably mounted on the vehicle body, a pouring channel fixed inside the vehicle body, and a guiding structure mounted on the side wall of the vehicle body.

[0010] A smoothing device, detachably mounted at the rear of the vehicle, is used to smooth concrete surfaces.

[0011] A vibratory device is placed between the concrete pouring device and the leveling device to vibrate the concrete.

[0012] By adopting the above technical solution, the concrete used for pouring the trench around the curbstone enters the pouring channel inside the vehicle body through the pouring structure. After passing through the pouring channel, the concrete enters the guiding structure, which guides the concrete into the trench, thus completing the concrete pouring. The concrete pouring device is set at the front of the vehicle body, and a vibrating device is set behind the concrete pouring device. A smoothing device is set behind the vibrating device, so that after the concrete is poured, it can be vibrated by the vibrating device and smoothed by the smoothing device to complete the entire concrete pouring process, forming an automated production line for concrete pouring in the trench, which improves the construction speed. Moreover, only one construction worker is needed to push the vehicle forward, and another construction worker adds concrete into the pouring structure to complete the construction, which simplifies the construction manpower and saves construction costs.

[0013] Optionally, a first connecting block and a second connecting block are fixed to the port on the side wall of the vehicle body. A rotating rod is movably inserted into the first connecting block, and a tension spring is rotatably provided on the side wall of the second connecting block. The end of the tension spring away from the second connecting block is fixed to the end of the rotating rod.

[0014] A gear block is fixed on the rotating rod, and a gear slot for inserting the gear block is opened through the first connecting block.

[0015] The material pouring structure includes a chute that can be detachably mounted on a rotating rod.

[0016] By adopting the above technical solution, fixing the chute to the rotating rod enables chute angle adjustment. When the vehicle is in use, under the elastic force of the tension spring, the gear block is inserted into the gear groove, and the position of the rotating rod is fixed. The chute fixed to the rotating rod is used to pour concrete into the discharge channel. By adjusting the level of the chute, the speed at which concrete enters the discharge channel can be adjusted, thereby controlling the amount of concrete poured. When adjusting the angle of the chute, the rotating rod is pulled to disengage the gear block from the gear groove. Rotating the rotating rod at this time can adjust the angle of the chute. After the chute is adjusted to a suitable angle, the rotating rod returns to the state where the gear block is inserted into the gear groove under the elastic restoring force of the tension spring, and the position of the chute is fixed again.

[0017] Optionally, a first fixing plate is fixed to the bottom wall of the chute, and a second fixing plate is fixed to the rotating rod, with the first fixing plate and the second fixing plate being detachably connected.

[0018] By adopting the above technical solution, since the side wall of the rotating rod is curved and the bottom wall of the chute is also curved, it is difficult to fix their positions. The first fixing plate and the second fixing plate are set so that the two can be stably connected, thereby driving the chute to adjust the angle through the rotating rod. The chute is detachably set on the rotating rod. When the casting equipment of this application is not needed, the chute can be removed to facilitate the storage of the material pouring structure.

[0019] Optionally, the two ends of the material pouring channel are respectively fixed to the two side walls of the vehicle body. The cross-section of the material pouring channel is a concave arc shape, and the slope of the material pouring channel is gentler as it gets closer to the bottom wall of the vehicle body.

[0020] By adopting the above technical solution, concrete can be discharged into the guiding structure along the pouring channel, thereby pouring the concrete into the trench. The slope of the pouring channel reduces the impact force of the concrete entering the guiding structure, thus reducing the damage to the guiding structure caused by the impact force of the concrete.

[0021] Optionally, a discharge port is provided on the side wall of the vehicle body away from the first connecting block. The material guiding structure includes a first limiting plate, a second limiting plate, and an inclined discharge cylinder. One end of the discharge cylinder is connected to the side wall of the discharge port, and the first limiting plate and the second limiting plate are located at the end of the discharge cylinder away from the discharge port.

[0022] The discharge cylinder includes an upper side wall and a lower side wall. The first limiting plate is rotatably connected to the inner wall of the upper side wall, and the second limiting plate is rotatably connected to the lower side wall.

[0023] By adopting the above technical solution, the concrete discharged from the pouring channel enters the pouring cylinder through the pouring port. The concrete flows along the pouring cylinder to the top of the trench and is poured into the trench under the restriction of the first limiting plate and the second limiting plate, thus completing the pouring of concrete in the trench. The first limiting plate and the second limiting plate are rotatably connected to the inner wall of the pouring cylinder, so that the first limiting plate and the second limiting plate can rotate and be stored.

[0024] Optionally, a guide groove is provided on the side wall of the vehicle body, and a snap-fit ​​block that slides along the guide groove is fixed on the pouring cylinder. The snap-fit ​​block can slide along the guide groove to abut against the side wall of the vehicle body. The length of the guide groove is not less than the sum of the lengths of the pouring cylinder and the first limiting plate.

[0025] By adopting the above technical solution, the pouring cylinder, the first limiting plate, and the second limiting plate can be stored in the vehicle body. After the pouring equipment of this application is used, the first limiting plate and the second limiting plate are rotated until the first limiting plate and the second limiting plate are parallel to the upper side wall, and the pouring cylinder is pushed into the vehicle body. At this time, the locking block slides along the guide groove until the first limiting plate, the second limiting plate, and the pouring cylinder are stored in the vehicle body, thereby facilitating the storage of the entire pouring equipment.

[0026] Optionally, a material pouring plate coplanar with the lower sidewall is fixed at the end of the lower sidewall away from the pouring port, and a clearance groove is provided on the side of the second limiting plate near the lower sidewall, the area of ​​the clearance groove being larger than the area of ​​the material pouring plate.

[0027] The plates on both sides of the relief groove are rotatably connected to the lower sidewalls on both sides of the pouring plate.

[0028] By adopting the above technical solution, when pouring concrete, the second limiting plate is set vertically. At this time, the pouring plate extends out of the second limiting plate, so that the concrete poured out from the pouring cylinder can smoothly enter the space between the first limiting plate and the second limiting plate along the pouring plate and be poured into the trench. The concrete is not easy to accumulate at the hinge between the second limiting plate and the lower side wall.

[0029] When the second limiting piece needs to be stored, rotate the second limiting piece until it is parallel to the lower side wall to complete the storage of the second limiting plate. At this time, the material pouring piece is located in the relief groove and does not interfere with the rotation of the second limiting piece.

[0030] Optionally, a closing door for opening and closing the discharge port is rotatably provided above the discharge port, and a locking element is provided between the closing door and the vehicle body.

[0031] By adopting the above technical solution, when using the pouring equipment of this application to pour concrete, the closed door rotates and overlaps on the upper side wall; after the pouring cylinder, the first limiting plate and the second limiting plate are stored in the vehicle body, the closed door can automatically rotate down and close the pouring port under the action of gravity, and the closed door is locked to the vehicle body by the locking device, thus completing the storage of the material guiding structure.

[0032] Optionally, the vibrating device includes a first fixing rod, one end of which is detachably connected to the side wall of the vehicle body, and the other end is provided with a fixing seat, on which a vibrator is installed;

[0033] A shock-absorbing spring is provided between the fixed base and the vibrator.

[0034] By adopting the above technical solution, the vibrator is installed on the fixed base to realize the vibration of the poured concrete. Since the vibrator will generate vibration when vibrating, the damping spring on the vertical vibrator can reduce the impact of the vibration of the vibrator on the vehicle body, so that the vehicle body can run stably. The first fixed rod is detachably set on the vehicle body, so that the vibrating device can be removed from the vehicle body and stored in the vehicle body.

[0035] Optionally, the smoothing device includes a second fixing rod detachably mounted on the side wall of the vehicle body, and a pressure plate fixed to the end of the second fixing rod away from the vehicle body.

[0036] By adopting the above technical solution, the second fixing rod can guide the pressure plate to the concrete pouring surface and smooth the concrete pouring surface, and the second fixing rod and the pressure plate can be disassembled and stored.

[0037] In summary, this application includes at least one of the following beneficial effects:

[0038] 1. The concrete pouring device, vibration device and smoothing device are installed on the vehicle body in sequence, which can realize the assembly line of concrete pouring construction around the curbstone, automatically complete the whole process of concrete pouring in the trench, save construction time and save construction manpower.

[0039] 2. The chute can be angled, thereby adjusting the amount and speed of concrete discharged from the chute, so as to regulate the amount of concrete poured.

[0040] 3. The first limiting plate and the second limiting plate are rotatably connected to the side wall of the pouring cylinder and are provided with guide grooves, which can realize the function of storing the pouring device in the vehicle body, thereby making the pouring equipment of this application easier to store and preserve;

[0041] 4. The leveling device, vibrating device, and material pouring structure are all detachably connected to the vehicle body, allowing the above devices and structures to be disassembled, replaced, and stored. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0043] Figure 2 This is a partial exploded view of the pouring structure used in an embodiment of this application;

[0044] Figure 3 This is a cross-sectional schematic diagram of a concrete pouring device according to an embodiment of this application;

[0045] Figure 4 This is a partial structural diagram of the material guiding structure used in an embodiment of this application.

[0046] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 11. First connecting block; 111. Gear groove; 12. Second connecting block; 13. Rotating rod; 131. Gear block; 14. Tension spring; 15. Second fixing plate; 16. Discharge port; 17. Guide channel; 2. Concrete pouring device; 21. Chute; 211. First fixing plate; 22. Discharge channel; 23. Guide structure; 231. First limiting plate; 232. Second limiting plate; 2321. Clearing groove; 233. Discharge cylinder; 2331. Upper side wall; 2332. Lower side wall; 2334. Discharge plate; 234. Clip block; 3. Smoothing device; 31. Second fixing rod; 32. Pressing plate; 4. Vibration device; 41. First fixing rod; 42. Fixing seat; 43. Shock-absorbing spring; 44. Vibrator; 5. Sealing door; 6. Locking element. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0048] This application discloses an automatic backfilling device for curb stones, which, according to an embodiment, is [reference needed]. Figure 1 An automatic backfilling device for curb stones includes a concrete pouring device 2, a vibrating device 4, and a smoothing device 3 arranged sequentially from the front to the rear of the vehicle body 1. A push rod is fixed on the side wall at the rear of the vehicle body 1 to facilitate the push of the vehicle body 1 by construction personnel. The interior of the vehicle body 1 is divided into multiple areas by steel plates.

[0049] Reference Figure 1 The concrete pouring device 2 includes a pouring structure, a pouring channel 22, and a guiding structure 23. The pouring structure is located on the side wall of the vehicle body 1 away from the curb, the pouring channel 22 is fixed inside the vehicle body 1, and the guiding structure 23 is located on the side wall of the vehicle body 1 near the curb. When pouring the trench around the curb, the discharge pipe of the concrete mixer truck is placed above the pouring structure. The concrete is introduced into the pouring channel 22 through the pouring structure, then enters the guiding structure 23 through the pouring channel 22, and finally is discharged into the trench through the guiding structure 23 to complete the pouring of the concrete around the curb.

[0050] Reference Figure 1 and Figure 2 The material unloading structure includes a chute 21, which is an arc-shaped guide groove. A first fixing plate 211 is fixed to the bottom wall of the chute 21. A drive structure for driving the chute 21 to rotate is provided on the upper end of the side wall of the vehicle body 1 that fixes the material unloading structure. The drive structure includes a first connecting block 11 and a second connecting block 12 fixed to the upper port of the vehicle body 1. The first connecting block 11 and the second connecting block 12 are spaced apart. A gear groove 111 is formed through the first connecting block 11. A rotating rod 13 is movably inserted into the first connecting block 11. A gear block 131 that can be engaged in the gear groove 111 is fixed on the rotating rod 13. By pushing the rotating rod 13 along its length, when the gear block 131 is engaged in the gear groove 111, the position of the rotating rod 13 is fixed; when the gear block 131 is disengaged from the gear groove 111, the rotating rod 13 can rotate.

[0051] Reference Figure 1 and Figure 2A second fixing plate 15 is integrally formed on the side wall of the rotating rod 13. The first fixing plate 211 and the second fixing plate 15 can be detachably connected by multiple bolts and nuts, thus achieving a detachable connection between the chute 21 and the rotating rod 13. By rotating the rotating rod 13, the angle of the chute 21 can be adjusted. Adjusting the angle of the chute 21 can adjust the movement speed of the concrete within the chute 21, thereby controlling the amount of concrete entering the vehicle body 1 and the speed at which the concrete is discharged into the vehicle body 1. Construction personnel can reasonably adjust the angle according to the volume of concrete to be poured. For example, for the construction of curb stones with a wide trench excavation, the angle between the chute 21 and the horizontal plane can be increased, thereby increasing the amount of concrete discharged into the trench per unit time to meet the pouring requirements.

[0052] Reference Figure 1 and Figure 2 A rotating bearing is fixed inside the second connecting block 12, and a tension spring 14 is fixed on the rotating bearing. The end of the tension spring 14 away from the rotating bearing is fixedly connected to the end of the rotating rod 13 away from the first connecting block 11. When the construction personnel need to adjust the angle of the chute 21, they pull the rotating rod 13 away from the second connecting block 12, so that the gear block 131 disengages from the gear groove 111, and then rotate the rotating rod 13. After the angle adjustment is completed, under the elastic restoring force of the tension spring 14, the gear block 131 is inserted back into the gear groove 111, thus completing the fixation of the position of the rotating rod 13.

[0053] Reference Figure 1 and Figure 3 The material discharge channel 22 is specifically an arc-shaped channel with both ends fixed to the side walls of the vehicle body 1. One end of the chute 21 extends into the vehicle body 1 and is located directly above the material discharge channel 22. The closer the material discharge channel 22 is to the bottom of the vehicle, the gentler its slope. The arc-shaped material discharge channel 22 allows the concrete in the chute 21 to enter the guiding structure 23 along the material discharge channel 22, and then discharge the concrete into the trench. On the other hand, it can reduce the impact force when the concrete is discharged into the guiding structure 23, reducing damage to the guiding structure 23.

[0054] Reference Figure 3A discharge port 16 is provided on the side wall of the vehicle body 1 away from the discharge structure. A guide structure 23 is provided at the discharge port 16. The guide structure 23 includes a discharge cylinder 233 inclined towards the bottom of the vehicle body 1. The discharge cylinder 233 is a square cylinder and includes an upper side wall 2331 and a lower side wall 2332. A first limiting plate 231 is rotatably connected to the inner wall of the upper side wall 2331 away from the vehicle body 1. A second limiting plate 232 is rotatably connected to the end of the lower side wall 2332 away from the vehicle body 1. The first limiting plate 231 can rotate to be parallel to the upper side wall 2331 and abut against the inner wall of the upper side wall 2331. The second limiting plate 232 can rotate to be parallel to the lower side wall 2332 and abut against the inner wall of the lower side wall 2332.

[0055] Reference Figure 3 and Figure 4 To achieve the rotational connection between the second limiting plate 232 and the lower side wall 2332 without affecting the smooth flow of concrete along the pouring cylinder 233 into the space between the first limiting plate 231 and the second limiting plate 232, a clearance groove 2321 is provided on the side wall of the second limiting plate 232 near the lower side wall 2332. A pouring piece 2334 is fixed at the end of the lower side wall 2332 near the second limiting plate 232. The pouring piece 2334 is coplanar with the lower side wall 2332, and the width of the pouring piece 2334 is smaller than the width of the lower side wall 2332 and also smaller than the width of the clearance groove 2321.

[0056] Reference Figure 3 and Figure 4 The second limiting plate 232 is rotatably connected to the lower sidewalls 2332 of the pouring plate 2334 on both sides of the relief groove 2321. When concrete is discharged into the trench through the pouring cylinder 233, the second limiting plate 232 is in a vertical state. At this time, the pouring plate 2334 extends out of the plane where the second limiting plate 232 is located, so that the concrete can be smoothly discharged into the space between the first limiting plate 231 and the second limiting plate 232.

[0057] Reference Figure 3 and Figure 4 A guide groove 17 is provided on the side wall of the vehicle body 1. The guide groove 17 is located above the material pouring channel 22, and the material pouring cylinder 233 can slide along the guide groove 17 and be stored inside the vehicle body 1. Specifically, two locking blocks 234 are fixed on the two side walls of the material pouring cylinder 233. The two locking blocks 234 are respectively locked into the two guide grooves 17, and the locking blocks 234 can slide along the guide grooves 17 until they abut against the side wall of the vehicle body 1. The locking blocks 234 can restrict the material pouring cylinder 233 from sliding along the guide grooves 17 and detaching from the vehicle body 1, and can also allow the material pouring cylinder 233 to slide along the guide grooves 17 and be stored inside the vehicle body 1.

[0058] Reference Figure 3 and Figure 4The length of the guide groove 17 is not less than the sum of the lengths of the pouring cylinder 233 and the first limiting plate 231. Since the second limiting plate 232 is rotatably connected to the lower side wall 2332 and the first limiting plate 231 is rotatably connected to the upper side wall 2331, when the pouring cylinder 233 is housed in the vehicle body 1, the first limiting plate 231 can be rotated until it is parallel to and abuts against the upper side wall 2331, and the second limiting plate 232 can be rotated until it is parallel to and abuts against the lower side wall 2332, thus pushing the first limiting plate 231 and the second limiting plate 232 to house the first limiting plate 231, the second limiting plate 232 and the pouring cylinder 233 into the vehicle body 1.

[0059] Reference Figure 1 and Figure 3 Above the discharge port 16, a rotatable closing door 5 is also provided for opening and closing the discharge port 16. When concrete is poured using the configuration of this application, the closing door 5 abuts against the upper side wall 2331. When the first limiting plate 231, the second limiting plate 232, and the discharge cylinder 233 are all housed inside the vehicle body 1, the closing door 5 can automatically flip and close the discharge port 16 under the action of gravity. A locking member 6 is also provided between the lower end of the closing door 5 and the vehicle body 1 to lock the closing door 5 and the vehicle body 1. In this embodiment, bolts are used to lock the closing door 5 and the vehicle body 1. In other embodiments, other locking devices can also be used to lock the closing door 5 and the vehicle body 1.

[0060] Reference Figure 1 The vibratory device 4 includes a first fixing rod 41 fixed to the side wall of the vehicle body 1 near the curb. A steel plate is fixed to one end of the first fixing rod 41, and the steel plate is detachably connected to the vehicle body 1 via bolts and nuts. A fixing seat 42 is provided at the end of the first fixing rod 41 away from the vehicle body 1. A vibrator 44 is mounted on the fixing seat 42, and multiple damping springs 43 are installed between the vibrator 44 and the fixing seat 42. After the concrete pouring device 2 pours concrete, the vibratory device 4, located behind the concrete pouring device 2, can vibrate the concrete. Since the vibrator 44 generates vibration when it vibrates, the damping springs 43 can reduce the impact of the vibration of the vibrator 44 on the stability of the vehicle body 1.

[0061] Reference Figure 1 The smoothing device 3 includes a second fixing rod 31 and a pressing plate 32. The pressing plate 32 is fixed to one end of the second fixing rod 31, and the other end of the second fixing rod 31 is detachably connected to the vehicle body 1 through a steel plate. After the vibrator 44 vibrates the concrete, the pressing plate 32 smooths the surface of the vibrated concrete, thus completing the entire process of concrete pouring.

[0062] The implementation principle of the automatic backfilling equipment for curbstones in this application embodiment is as follows: When pouring concrete in the trench around the curbstone, the construction personnel can adjust the inclination angle of the chute 21 according to the size of the trench excavation and open the closed door 5. At this time, the first limiting plate 231, the second limiting plate 232 and the pouring cylinder 233 slide out along the guide groove 17, and the first limiting plate 231 and the second limiting plate 232 rotate downward to the vertical state under the action of gravity; and the smoothing device 3 and the vibrating device 4 are taken out from the vehicle body 1 and installed on the side wall of the vehicle body 1.

[0063] One worker can connect the discharge pipe of the concrete pump truck to the chute 21 and manually pour concrete into the chute 21. The concrete flows from the chute 21 along the discharge channel 22 and the guide structure 23 into the trench, completing the pouring of concrete in the trench. Another worker pushes the vehicle 1 forward. During the forward movement, the vibrating device 4 and the smoothing device 3 pass through the concrete in sequence, vibrating and smoothing the concrete respectively to complete the pouring of concrete in the trench, saving manpower and improving work efficiency.

[0064] After the concrete is poured, the chute 21, the vibrating device 4 and the smoothing device 3 can all be removed from the vehicle body 1 and stored in the empty space inside the vehicle body 1. The material guiding structure 23 can also slide along the guide chute 17 and be stored inside the vehicle body 1. The discharge port 16 is closed by the sealing door 5, which makes the pouring device of this application easy to store and reduces the space occupied.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic mortar pouring device for curb stones, characterized in that, Includes a vehicle body (1), on which are provided: The concrete pouring device (2) is fixed to the front of the vehicle body (1) and includes a pouring structure that can be detachably installed on the vehicle body (1), a pouring channel (22) fixed inside the vehicle body (1), and a material guiding structure (23) installed on the side wall of the vehicle body (1). The smoothing device (3) is detachably installed at the rear of the vehicle body (1) and is used to smooth the concrete surface; The vibrating device (4) is set between the concrete pouring device (2) and the smoothing device (3) for vibrating the concrete; The vehicle body (1) has a first connecting block (11) and a second connecting block (12) fixed on the side wall. A rotating rod (13) is movably inserted into the first connecting block (11). A tension spring (14) is rotatably arranged on the side wall of the second connecting block (12). The end of the tension spring (14) away from the second connecting block (12) is fixed to the end of the rotating rod (13). A gear block (131) is fixed on the rotating rod (13), and a gear groove (111) for the gear block (131) to be inserted is provided through the first connecting block (11). The material pouring structure includes a chute (21) that is detachably mounted on the rotating rod (13). A discharge port (16) is provided on the side wall of the vehicle body (1) away from the first connecting block (11). The material guiding structure (23) includes a first limiting plate (231), a second limiting plate (232) and an inclined discharge cylinder (233). One end of the discharge cylinder (233) is connected to the side wall of the discharge port (16). The first limiting plate (231) and the second limiting plate (232) are located at the end of the discharge cylinder (233) away from the discharge port (16). The pouring cylinder (233) includes an upper side wall (2331) and a lower side wall (2332). The first limiting plate (231) is rotatably connected to the inner wall of the upper side wall (2331), and the second limiting plate (232) is rotatably connected to the lower side wall (2332). The side wall of the vehicle body (1) is provided with a guide groove (17), and a snap-fit ​​block (234) is fixed on the pouring cylinder (233) and slides along the guide groove (17). The snap-fit ​​block (234) can slide along the guide groove (17) to abut against the side wall of the vehicle body (1). The length of the guide groove (17) is not less than the sum of the lengths of the pouring cylinder (233) and the first limiting plate (231).

2. The automatic backfilling equipment for curb stones according to claim 1, characterized in that: The bottom wall of the chute (21) is fixed with a first fixing plate (211), and the rotating rod (13) is fixed with a second fixing plate (15). The first fixing plate (211) and the second fixing plate (15) are detachably connected.

3. The automatic backfilling equipment for curb stones according to claim 2, characterized in that: The two ends of the material pouring channel (22) are respectively fixed on the two side walls of the vehicle body (1). The cross-section of the material pouring channel (22) is a concave arc shape, and the slope of the material pouring channel (22) is gentler as it gets closer to the bottom wall of the vehicle body (1).

4. The automatic backfilling equipment for curb stones according to claim 1, characterized in that: The end of the lower sidewall (2332) away from the pouring port (16) is fixed with a pouring piece (2334) that is coplanar with the lower sidewall (2332). The second limiting plate (232) has a relief groove (2321) on the side close to the lower sidewall (2332). The area of ​​the relief groove (2321) is larger than the area of ​​the pouring piece (2334). The plates on both sides of the relief groove (2321) are rotatably connected to the lower sidewalls (2332) on both sides of the pouring plate (2334).

5. The automatic backfilling equipment for curb stones according to claim 4, characterized in that: A closing door (5) for opening and closing the discharge port (16) is rotatably provided above the discharge port (16), and a locking element (6) is provided between the closing door (5) and the vehicle body (1).

6. The automatic backfilling equipment for curb stones according to claim 5, characterized in that: The vibrating device (4) includes a first fixed rod (41), one end of which is detachably connected to the side wall of the vehicle body (1), and the other end is provided with a fixed seat (42), on which a vibrator (44) is installed. A shock-absorbing spring (43) is provided between the fixed seat (42) and the vibrator (44).

7. The automatic backfilling equipment for curb stones according to claim 6, characterized in that: The smoothing device (3) includes a second fixing rod (31) detachably mounted on the side wall of the vehicle body (1) and a pressure plate (32) fixed to the end of the second fixing rod (31) away from the vehicle body (1).

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