Municipal road construction vibration flattening device
By combining transmission and damping components, the buffer mechanism consumes the vibration force of the hands. The design of the detachable structure facilitates the cleaning of adhering substances, solving the problems of physical exertion and cleaning caused by vibration force transmission in existing devices, and improving the comfort of construction workers and the efficiency of construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANYI CONSTR DEV CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
During the use of existing vibratory leveling devices for municipal road construction, the vibration force is transmitted to the hands of construction workers through the device, resulting in increased physical exertion, and it is difficult to clean the adhering concrete after the device is used.
The device employs a combination of transmission and damping components, using a buffer mechanism to absorb hand vibrations. It also features a detachable structure for easy cleaning of adhering substances, including a hollow tube, stud, threaded cylinder, slot, rotating ring, and buffer assembly. Combined with a damper and spring, it reduces the force of vibration transmitted to the hand, and the device can be disassembled individually via a dovetail groove and a limit seat.
It effectively reduces the rate at which construction workers lose physical strength, improves user comfort, facilitates the cleaning of concrete in the vibrated and leveled areas, and enhances construction efficiency.
Smart Images

Figure CN224186565U_ABST
Abstract
Description
A vibration leveling device for municipal road construction Technical Field
[0001] This utility model relates to the field of road construction technology, specifically to a vibratory leveling device for municipal road construction. Background Technology
[0002] Municipal infrastructure projects refer to civil engineering, pipeline, and equipment installation projects for urban roads, public transportation, etc. During municipal road construction, after the road surface is paved, it needs to be vibrated and leveled using a vibratory leveling device to remove air bubbles from the surface. In existing technology: Authorization Publication Number CN Patent 114717914A discloses a vibratory leveling device for municipal road construction, comprising a movable base box, a connecting horizontal plate, a supporting inclined plate, and a force-bearing push rod. The connecting horizontal plate is bolted to the right side of the movable base box, and the supporting inclined plate is fixed to the right side of the connecting horizontal plate. The force-bearing push rod is fixed to the upper part of the supporting inclined plate. The drive shaft of this invention rotates forward, causing the rotating seat to rotate forward, which in turn moves the connecting horizontal frame back and forth, causing the flattening horizontal plate to move back and forth. The back and forth movement of the flattening horizontal plate smooths the road surface, thus facilitating the subsequent flattening roller to flatten the road surface by reversing. This allows for smoothing before vibratory leveling of municipal roads without affecting the subsequent flattening efficiency. The device is moved by the construction worker manually supporting the force-bearing push rod. However, when the device is used for vibratory leveling of municipal roads, the vibration force generated by the device is transmitted through the device's frame to the force-bearing push rod, and then through the force-bearing push rod to the construction worker's hands. The construction worker's hands are in a state of vibration for a long time, which increases their physical exertion. Therefore, we propose a vibratory leveling device for municipal road construction. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a municipal road construction vibratory leveling device. This device, through the cooperation of transmission elements and damping elements, enables construction workers to partially consume the vibration force transmitted to their hands when holding the municipal road construction vibratory leveling device, thereby reducing the rate at which the construction workers lose physical strength. At the same time, after the device is used, the vibratory leveling part can be disassembled separately, which facilitates the cleaning of the municipal road construction concrete adhering to the vibratory leveling part, and can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a municipal road construction vibratory leveling device, including a base, a vibratory plate installed on the lower side of the base, four longitudinally evenly distributed cams installed on the upper end of the base, a control shell provided in the middle of the base, a handle rod provided between the front and rear sides of the control shell, a handle installed at both the front and rear ends of the left side of the handle rod, and a buffer mechanism.
[0005] The buffer mechanism includes a hollow tube, a stud, a threaded cylinder, a slot, and a buffer assembly. The hollow tubes are located on the right side of the handle, and each hollow tube has a stud installed inside. Each stud is threaded to a threaded cylinder. Slots are provided at both ends of the left side of the handle, and each threaded cylinder is installed in conjunction with an adjacent slot. A buffer assembly is provided between the hollow tube and the handle. This device, through the cooperation of transmission and damping elements, allows construction workers to partially absorb the vibration force transmitted to their hands when holding the municipal road construction vibratory leveling device, reducing the rate at which the workers lose physical strength. After use, the vibratory leveling part can be disassembled separately to facilitate the cleaning of municipal road construction concrete adhering to the vibratory leveling part.
[0006] Furthermore, the upper side of the base is provided with four longitudinally evenly distributed connecting seats, and a rotating shaft is rotatably connected between the connecting seats through a bearing. The cams are all fixedly connected to the rotating shaft. A motor is provided in the middle of the upper side of the control housing. The output shaft of the motor and the middle of the rotating shaft are both provided with bevel gears. The bevel gears are meshed with each other and are located inside the control housing. The front and rear walls of the control housing are rotatably connected to the rotating shaft through a bearing. A diesel generator is mounted on the upper side of the control housing through a mounting bracket. The output end of the diesel generator is electrically connected to the input end of the motor to provide power for the vibration leveling operation of municipal road construction.
[0007] Furthermore, the buffer mechanism also includes connecting rods, rotating rings, and synchronizing rods. The rotating rings are rotatably connected to the middle of the hollow tube via bearings. The inner walls of the rotating rings are fixedly connected to the outer side of the adjacent studs via two vertically distributed synchronizing rods. Two symmetrically distributed connecting rods are provided between the left and right ends of the outer side of the hollow tube to rotate the studs in the municipal road construction vibratory leveling device.
[0008] Furthermore, the buffer mechanism also includes guide bars, which are respectively disposed on the inner wall of the hollow tube. Guide grooves are provided on the outer side of the threaded cylinder, and the guide bars are slidably connected to the adjacent guide grooves to avoid synchronous rotation between the threaded cylinder and the stud in the municipal road construction vibratory leveling device.
[0009] Furthermore, the buffer assembly includes an annular shell, an annular seat, grooves, cylinders, dampers, springs, and limiting rods. The annular shell is respectively located on the outer right end of the hollow tube. The outer surfaces of the left front and rear ends of the handle are provided with four evenly distributed limiting rods and an annular seat. The outer side of the annular seat and the inner wall of the annular shell are provided with six evenly distributed grooves. The inside of each groove is rotatably connected to a cylinder through a rotating shaft. A damper and a spring are provided between two vertically adjacent cylinders. The springs are movably sleeved with the outer ends of the adjacent dampers. The damping spring force can partially consume the vibration force transmitted to the hands of the construction workers.
[0010] Furthermore, the bottom of the base is provided with a dovetail groove, and the middle part of the vibrating plate is slidably connected to the dovetail groove through a dovetail seat. Both the front and rear ends of the upper side of the base are provided with connecting plates, and the middle part of the connecting plates is threaded with studs II. The lower end of studs II is rotatably connected to a limit seat through a bearing IV. The side of the limit seat near the longitudinal center of the base is in sliding contact with the side of the base adjacent to it. The limit seat and the dovetail seat are installed together. The upper end of studs II is provided with a knob, which can be used to disassemble the vibrating plate part separately.
[0011] Furthermore, corrugated pipes are provided between the connecting plate and the vertically adjacent limiting seat. The corrugated pipes are movably sleeved on the outer ends of the adjacent studs, thus wrapping and protecting the exposed parts of the studs inside the municipal road construction vibratory leveling device.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This municipal road construction vibration leveling device has the following advantages:
[0013] 1. When using the municipal road construction vibratory leveling device, the device works together with hollow tubes, connecting rods, studs, threaded cylinders, slots, rotating rings and buffer components. This allows the damping springs to partially absorb the vibration force transmitted to the worker's hand when the worker holds the device, reducing the rate of physical exhaustion and improving the worker's comfort when using the device.
[0014] 2. After the municipal road construction vibratory leveling device is used, the vibratory leveling part can be disassembled separately through the dovetail seat, connecting plate, stud II, limit seat and knob, so that construction personnel can easily clean the municipal road construction concrete adhering to the vibratory leveling part. Attached Figure Description
[0015] Figure 1 is a schematic diagram of the structure of this utility model;
[0016] Figure 2 is a schematic diagram of the internal structure of this utility model;
[0017] Figure 3 is a cross-sectional structural schematic diagram of the buffer mechanism of this utility model;
[0018] Figure 4 is an enlarged structural schematic diagram of section A of this utility model.
[0019] In the diagram: 1. Base, 2. Vibrating plate, 3. Connecting seat, 4. Rotating shaft one, 5. Cam, 6. Control housing, 7. Handle lever, 8. Handle, 9. Buffer mechanism, 91. Hollow tube, 92. Connecting rod, 93. Stud one, 94. Threaded cylinder, 95. Slot, 96. Guide bar, 97. Rotating ring, 98. Synchronizing rod, 99. Buffer assembly, 991. Annular shell, 992. Annular seat, 993. Groove, 994. Cylinder, 995. Damper, 996. Spring, 997. Limiting rod, 10. Motor, 11. Bevel gear, 12. Dovetail seat, 13. Connecting plate, 14. Stud two, 15. Limiting seat, 16. Knob, 17. Bellows, 18. Diesel generator. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please refer to Figures 1-4. This embodiment provides a technical solution: a municipal road construction vibratory leveling device, including a base 1, a vibratory plate 2 installed on the lower side of the base 1, four longitudinally evenly distributed cams 5 installed on the upper end of the base 1, a control housing 6 in the middle of the base 1, a handle 7 between the front and rear sides of the control housing 6, and handles 8 installed at both the front and rear ends of the left side of the handle 7, four longitudinally evenly distributed connecting seats 3 on the upper side of the base 1, a rotating shaft 4 rotatably connected between the connecting seats 3 via bearings, and the cams 5 fixedly connected to the rotating shaft 4, a motor 10 in the middle of the upper side of the control housing 6, a bevel gear 11 in the middle of the output shaft of the motor 10 and the rotating shaft 4, the bevel gears 11 meshing with each other, and the bevel gears 11 are all located inside the control housing 6, and the front and rear walls of the control housing 6 are connected by bearings. Bearing 2 is rotatably connected to shaft 4. A diesel generator 18 is mounted on the upper side of the control housing 6. The output end of the diesel generator 18 is electrically connected to the input end of the motor 10. When the vibratory leveling device is used during the construction of municipal roads, the diesel generator 18 runs to supply power to the motor 10, so that the output shaft of the motor 10 drives the shaft 4 to rotate through the meshing connection between two bevel gears 11 (the bevel gears 11 are wrapped and protected by the control housing 6). The shaft 4 drives the corresponding cam 5 to rotate. During the rotation of the cam 5, due to its different mass distribution, the centrifugal force generated by the high-speed rotation of the cam 5 acts on the vibratory plate 2 through the connecting seat 3, the base 1 and the dovetail seat 12, causing the vibratory plate 2 to vibrate, thereby vibrating the surface of the municipal road. It also includes a buffer mechanism 9.
[0022] Buffer mechanism 9 includes a hollow tube 91, studs 93 (studs 93 are located inside adjacent hollow tubes 91, and the hollow tubes 91 wrap around and protect the corresponding studs 93 to prevent external dust from interfering with the transmission of the studs 93), threaded cylinders 94, slots 95, and buffer components 99. The hollow tubes 91 are respectively located on the right side of the handle 8. Each hollow tube 91 has a stud 93 installed inside, and each stud 93 has a threaded cylinder 94 threadedly connected to its outer side. Slots 95 are provided at both the front and rear ends of the left side of the handle 7, and each threaded cylinder 94 is installed in conjunction with an adjacent slot 95. Buffer components 99 are provided between the hollow tubes 91 and the handle 7. The buffer mechanism 9 also includes a connecting rod 92, a rotating ring 97, and a synchronizing rod 98. The rotating ring 97... The rotating ring 97 is rotatably connected to the middle of the hollow tube 91 via bearings. The inner wall of the rotating ring 97 is fixedly connected to the outer side of the adjacent stud 93 via two vertically distributed synchronous rods 98. Two symmetrically distributed connecting rods 92 are provided between the left and right ends of the outer side of the hollow tube 91. The buffer mechanism 9 also includes guide bars 96, which are respectively set on the inner wall of the hollow tube 91. Guide grooves are opened on the outer side of the threaded cylinder 94, and the guide bars 96 are slidably connected to the adjacent guide grooves. The buffer assembly 99 includes an annular shell 991, an annular seat 992, a groove 993, a cylinder 994, a damper 995, a spring 996, and a limiting rod 997. The annular shell 991 is respectively set on the right end of the outer side of the hollow tube 91. The outer sides of the left front and rear ends of the handle bar 7 are provided with Four evenly distributed limiting rods 997 and an annular seat 992 are provided. Six evenly distributed grooves 993 are formed on the outer side of the annular seat 992 and the inner wall of the annular shell 991. Each groove 993 is rotatably connected to a cylinder 994 via a rotating shaft. A damper 995 and a spring 996 are provided between two vertically adjacent cylinders 994. The spring 996 is movably sleeved with the outer end of the adjacent damper 995. During the use of the municipal road construction vibratory leveling device, the vibration force generated by the device is applied to the handle rod 7 through the control shell 6. The construction worker can rotate the rotating ring 97, which drives the stud 93 to rotate via the synchronizing rod 98. During this process, the stud 93 causes the threaded cylinder 94 to move to the left through a threaded connection (during this process, the threaded cylinder 94...). The guide groove and corresponding guide bar 96 of the hollow tube 91 slide adaptively, thereby avoiding synchronous rotation between the stud 93 and the threaded cylinder 94. The connecting rod 92 keeps the left and right ends of the hollow tube 91 in a relatively fixed state. The threaded cylinder 94 moves to the left and moves out of the corresponding slot 95, thereby releasing the synchronous association between the grip 8 and the grip lever 7. At this time, the vibration force generated by the operation of the device on the grip lever 7 is applied to the annular seat 992. Through the elastic contraction of the spring 996 and the elastic element and bearing element inside the damper 995 through friction or hydraulic resistance, part of the vibration force is converted into heat energy and released. By reducing the vibration effect of the annular shell 991, the vibration impact on the grip 8 fixed to it is indirectly reduced.This reduces vibration interference to the hands of construction workers caused by the device's operation. During this process, the cylinder 994 adaptively rotates around the corresponding pivot, allowing the annular shell 991 to move vertically relative to the adjacent annular seat 992 (the vertical movement trajectory of the inner wall of the annular shell 991 is limited by the limiting rod 997 to prevent collisions between the damper 995 or spring 996 and the adjacent groove 993 due to excessive vertical movement between the annular shell 991 and the adjacent annular seat 992). Through the cooperation of transmission and damping elements, this device partially dissipates the vibration force transmitted to the hands of construction workers when they hold the municipal road construction vibratory leveling device, reducing the rate of physical exhaustion.
[0023] The base 1 has a dovetail groove at its bottom. The middle of the vibrating plate 2 is slidably connected to the dovetail groove via a dovetail seat 12. Both the front and rear ends of the upper side of the base 1 have connecting plates 13. The middle of each connecting plate 13 is threaded with a stud 14. The lower end of each stud 14 is rotatably connected to a limiting seat 15 via a bearing 4. The limiting seat 15 near the longitudinal center of the base 1 slides in contact with the adjacent side of the base 1. The limiting seat 15 and the dovetail seat 12 are fitted together. Each stud 14 has a knob 16 at its upper end. A corrugated tube 17 is provided between the connecting plate 13 and the vertically adjacent limiting seat 15. The corrugated tube 17 is movably sleeved on the outer end of the adjacent stud 14. After the vibrating plate 14 is used for municipal road construction, the construction personnel can rotate the two knobs 16 to rotate the corresponding stud 14. During the rotation of the stud 14… The threaded connection between the device and the connecting plate 13 causes the limiting seat 15 to slide vertically upward along the side of the base 1, thereby releasing the longitudinal movement limitation of the dovetail seat 12 along the dovetail groove. Then, the construction personnel pull out the vibrating plate 2 through the dovetail seat 12 along the dovetail groove. The vibrating plate 2 inside the municipal road construction vibrating device can be easily cleaned of the adhering material by disassembling it separately (the exposed part of the stud 2 14 is wrapped and protected by the corrugated pipe 17 to prevent the concrete on the road surface from contacting the stud 2 14 during the municipal road construction process. The corrugated pipe 17 is a corrugated structure made of multiple layers of metal sheets. Its working principle is to achieve self-adaptive sealing through elastic deformation to maintain good sealing performance). After the device is used, the vibrating part can be disassembled separately to facilitate the cleaning of the municipal road construction concrete adhering to the vibrating part.
[0024] The working principle of the vibratory leveling device for municipal road construction provided by this utility model is as follows: When the vibratory leveling device is used during municipal road construction, the diesel generator 18 operates to supply power to the motor 10, causing the output shaft of the motor 10 to drive the rotating shaft 4 to rotate through the meshing connection between two bevel gears 11 (the bevel gears 11 are protected by the control housing 6). The rotating shaft 4 drives the corresponding cam 5 to rotate. During the rotation of the cam 5, due to its different mass distribution, the centrifugal force generated by the high-speed rotation of the cam 5 acts on the vibratory plate 2 through the connecting seat 3, the base 1, and the dovetail seat 12, causing the vibratory plate 2 to vibrate, thereby vibrating and leveling the road surface of the municipal road. During the use of the vibratory leveling device for municipal road construction, the device operates... The generated vibration force is applied to the handle 7 through the control housing 6. The operator can rotate the rotating ring 97, which drives the stud 93 to rotate through the synchronizing rod 98. During this process, the threaded cylinder 94 moves to the left through the threaded connection (during this process, the guide groove on the threaded cylinder 94 and the corresponding guide strip 96 slide adaptively, thus avoiding synchronous rotation between the stud 93 and the threaded cylinder 94. The connecting rod 92 keeps the left and right ends of the hollow tube 91 in a relatively fixed state). The threaded cylinder 94 moves out of the corresponding slot 95 by moving to the left, thereby releasing the synchronous connection between the handle 8 and the handle 7. At this time, the vibration force generated by the operation of the device on the handle 7 is applied to the annular seat 992. The elastic contraction of spring 996, and the elastic elements and bearing elements inside damper 995, through friction or hydraulic resistance, convert part of the vibration force into heat energy. This reduces the vibration effect of annular shell 991, thereby indirectly reducing the vibration impact on the grip 8 fixed to it, and further reducing the vibration interference to the operator's hands caused by the device's operation. During this process, cylinder 994 adaptively rotates around the corresponding pivot, allowing annular shell 991 to move vertically relative to adjacent annular seat 992 (the vertical movement trajectory of the inner wall of annular shell 991 is limited by limit rod 997 to prevent excessive vertical movement between annular shell 991 and adjacent annular seat 992, which could damage damper 995 or spring). (Collision occurs between groove 996 and adjacent groove 993). After the municipal road construction vibratory leveling device is used, the construction personnel can rotate the two knobs 16 to drive the corresponding stud 14 to rotate. During the rotation of stud 14, the threaded connection between stud 14 and connecting plate 13 drives the limiting seat 15 to slide vertically upward along the side of base 1, thereby releasing the longitudinal movement limitation of dovetail seat 12 along dovetail groove. Then, the construction personnel can pull out the vibratory plate 2 through dovetail seat 12 along dovetail groove. Individual disassembly facilitates the cleaning of adhering materials from the vibratory plate 2 inside the municipal road construction vibratory leveling device (the exposed parts of stud 14 are wrapped and protected by corrugated pipe 17 to prevent concrete on the road surface from contacting stud 14 during municipal road construction).The bellows 17 is a corrugated structure made of multiple layers of laminated metal sheets. Its working principle is to achieve self-adaptive sealing through elastic deformation to maintain good sealing performance.
[0025] It is worth noting that the motor 10 disclosed in the above embodiments can be Y80M1-2, the diesel generator 18 can be SAW5500E, and the diesel generator 18 controls the operation of the motor 10 using methods commonly used in the prior art.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A vibratory leveling device for municipal road construction, comprising a base (1), a vibratory plate (2) mounted on the lower side of the base (1), four longitudinally evenly distributed cams (5) mounted on the upper end of the base (1), a control housing (6) provided in the middle of the base (1), a handle rod (7) provided between the front and rear sides of the control housing (6), and handles (8) mounted on the front and rear ends of the left side of the handle rod (7), characterized in that: It also includes a buffer mechanism (9); the buffer mechanism (9) includes a hollow tube (91), a stud (93), a threaded cylinder (94), a slot (95) and a buffer assembly (99). The hollow tube (91) is respectively located on the right side of the handle (8). The hollow tube (91) is equipped with a stud (93) inside each of the hollow tubes (91). The stud (93) is threadedly connected to the outside of the stud (93). The handle bar (7) has slots (95) at both the front and rear ends on the left side. The threaded cylinder (94) is installed in conjunction with the adjacent slot (95). The hollow tube (91) and the handle bar (7) are provided with a buffer assembly (99).
2. The municipal road construction vibratory leveling device according to claim 1, characterized in that: The upper side of the base (1) is provided with four longitudinally evenly distributed connecting seats (3). A rotating shaft (4) is rotatably connected between the connecting seats (3) through a bearing. Cams (5) are all fixedly connected to the rotating shaft (4). A motor (10) is provided in the middle of the upper side of the control housing (6). A bevel gear (11) is provided in the middle of the output shaft of the motor (10) and the rotating shaft (4). The bevel gears (11) are meshed and connected. The bevel gears (11) are all located inside the control housing (6). The front and rear walls of the control housing (6) are rotatably connected to the rotating shaft (4) through a bearing. A diesel generator (18) is mounted on the upper side of the control housing (6) through a mounting bracket. The output end of the diesel generator (18) is electrically connected to the input end of the motor (10).
3. The municipal road construction vibratory leveling device according to claim 1, characterized in that: The buffer mechanism (9) also includes a connecting rod (92), a rotating ring (97), and a synchronizing rod (98). The rotating ring (97) is rotatably connected to the middle of the hollow tube (91) through bearings. The inner wall of the rotating ring (97) is fixedly connected to the outer side of the adjacent stud (93) through two vertically distributed synchronizing rods (98). Two symmetrically distributed connecting rods (92) are provided between the left and right ends of the outer side of the hollow tube (91).
4. A municipal road construction vibratory leveling device according to claim 1, characterized in that: The buffer mechanism (9) also includes guide bars (96), which are respectively disposed on the inner wall of the hollow tube (91). Guide grooves are provided on the outer side of the threaded cylinder (94), and the guide bars (96) are slidably connected to the adjacent guide grooves.
5. A municipal road construction vibratory leveling device according to claim 1, characterized in that: The buffer assembly (99) includes an annular shell (991), an annular seat (992), a groove (993), a cylinder (994), a damper (995), a spring (996), and a limiting rod (997). The annular shell (991) is respectively located on the outer right end of the hollow tube (91). The outer sides of the left front and rear ends of the handle (7) are provided with four evenly distributed limiting rods (997) and an annular seat (992). The outer side of the annular seat (992) and the inner wall of the annular shell (991) are provided with six evenly distributed grooves (993). The inside of the grooves (993) is rotatably connected to the cylinder (994) through a rotating shaft. A damper (995) and a spring (996) are provided between two vertically adjacent cylinders (994). The spring (996) is movably sleeved with the outer end of the adjacent damper (995).
6. A municipal road construction vibratory leveling device according to claim 1, characterized in that: The bottom of the base (1) is provided with a dovetail groove. The middle part of the vibrating plate (2) is slidably connected to the dovetail groove through the dovetail seat (12). The upper front and rear ends of the base (1) are provided with connecting plates (13). The middle part of the connecting plates (13) is threaded with studs (14). The lower end of the studs (14) is rotatably connected to the limit seat (15) through the bearing. The side of the limit seat (15) near the longitudinal center of the base (1) is in sliding contact with the side of the base (1) adjacent to it. The limit seat (15) and the dovetail seat (12) are installed together. The upper end of the studs (14) is provided with a knob (16).
7. A municipal road construction vibratory leveling device according to claim 6, characterized in that: The connecting plate (13) and the vertically adjacent limiting seat (15) are both provided with a bellows (17), and the bellows (17) are movably sleeved on the outer end of the adjacent stud (14).