Concrete leveling device for road construction

Abstract

The utility model relates to the technical field of road construction, and discloses a concrete leveling device for road construction, the telescopic end of an electric push rod is fixedly connected with a leveling roller assembly, and a transmission motor is in transmission connection with a leveling roller through a transmission belt; a scraping plate right opposite to the roller face of the leveling roller is installed in a support of the supporting frame, and pull rod assemblies are symmetrically installed in the middles of supports of the two trolley frames. The electric push rod is used as a lifting driving source, the leveling roller assembly is moved downwards to a proper height to be flush with the concrete pavement, and then rotary rolling of the leveling roller in the leveling roller assembly is utilized, so that on one hand, excessive concrete is rolled and pushed forwards, and on the other hand, the concrete pavement is leveled in a rolling manner; and then the leveling device is pulled to move forwards under roller supporting of the supporting trundles and pulling of the angle-adjustable pull rod assembly, and the concrete pavement is leveled.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a concrete leveling device used for road construction. Background Art

[0002] As the main material for construction, concrete is widely used in construction fields such as bridges, roads, and houses. Especially in the field of road construction, concrete roads have advantages over other roads, such as higher stability, better skid resistance, wear resistance, greater rigidity, stronger load capacity, and convenience for nighttime driving. During the construction and paving or subsequent repair of concrete roads, a leveling device is required to level the concrete road surface, as shown in the existing patent technology: After searching, the China Patent Network discloses a concrete leveling device for road construction (public announcement number CN216838849U). When such a device is in use, the height position of the leveling plate is adjusted by the set leveling mechanism to adapt to the height requirement of the road construction, and then the guide plates on both sides of the leveling plate are used to push and level the concrete after laying, thereby greatly improving the leveling efficiency without manual leveling.

[0003] However, there are still some shortcomings in the above-mentioned patents and the concrete road leveling devices adopted in the existing market: the existing method of using a screed plate to push horizontally for leveling has a large leveling resistance and high labor intensity, and the leveling of the concrete road surface is relatively simple during leveling, and it is very easy to fail to achieve uniform leveling due to high concrete protrusions. To this end, those skilled in the art provide a concrete leveling device for road construction to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide a concrete leveling device for road construction, which can effectively solve the problem of low efficiency of existing concrete road pavement leveling in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a concrete leveling device for road construction, comprising two sets of cart frames facing each other horizontally;

[0006] The top ends of the brackets of the two groups of cart frames are both equipped with electric push rods, and the telescopic ends of the electric push rods are fixedly connected to the leveling roller assembly;

[0007] The leveling roller assembly includes a support frame installed at the telescopic end of the electric push rod, the support frame is rotatably connected to the leveling roller, and a transmission motor is installed at one end of the support frame, the transmission motor and the leveling roller are connected through a transmission belt, and a scraper plate facing the roller surface of the leveling roller is installed inside the support frame of the support frame;

[0008] The middle parts of the brackets of the two groups of trolley frames are symmetrically equipped with pull rod assemblies.

[0009] As a further solution of the utility model: a pulley A is provided at the output end of the transmission motor, a pulley B is provided at one end of the roller shaft of the leveling roller, and the pulley A and the pulley B are connected by a transmission belt.

[0010] As a further solution of the utility model: the support plate surface of the support frame is connected with multiple groups of buffer guide rods fixedly connected to the scraper plate along its truss direction, and the outer side of the shaft rod of each group of buffer guide rods is sleeved with a buffer spring that presses against the support frame.

[0011] As a further solution of the utility model: the scraper plate is an L-shaped structure, and the scraping edge of the scraper plate and the roller surface of the leveling roller are in contact with each other.

[0012] As a further solution of the utility model: supporting casters are installed at the bottom of the support of the cart frame.

[0013] As a further solution of the utility model: the pull rod assembly includes a locking gear seat installed in the middle part of the cart frame bracket, the support center of the locking gear seat is rotatably connected to a rotating shaft, a pull rod is installed on the top of the shaft seat of the rotating shaft, a pull handle is provided on the top of the arm of the pull rod, and a pull rod positioning mechanism that is locked with the locking gear seat is provided inside the arm of the pull rod.

[0014] As a further solution of the utility model: the pull rod positioning mechanism includes a stretching guide rod slidably connected to the bottom end of the pull rod arm and a pull rope handle installed on the top end of the pull rod arm; the bottom end of the arm of the stretching guide rod is provided with a locking gear sleeve which is locked and engaged with the locking gear seat, and the outer side sleeve of the arm of the stretching guide rod is provided with a return spring which is pressed against the pull rod; the top end of the arm of the stretching guide rod is connected with a pull rope which passes through the pull rod and is connected to the pull rope handle.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] When the utility model performs the leveling process on the concrete pavement, the electric push rod is used as the lifting drive source to move the leveling roller assembly down to a suitable height and keep it flush with the concrete pavement, and then the rotary rolling of the leveling roller in the leveling roller assembly is used to push the excess concrete roller forward on the one hand, and to perform roller-type leveling on the other hand, and then, under the support of the rollers of the supporting casters and the pulling of the angle-adjustable pull rod assembly, the leveling device is pulled forward to perform the leveling process on the concrete pavement. The utility model is easy and convenient to operate, and the leveling of the concrete pavement is smoother and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a concrete leveling device for road construction according to the utility model;

[0018] Figure 2 This is a structural schematic diagram of a tie rod assembly in a concrete leveling device for road construction according to the utility model;

[0019] Figure 3 The utility model is a structural schematic diagram of a leveling roller assembly in a concrete leveling device for road construction.

[0020] In the figure: 1. trolley frame; 2. supporting casters; 3. electric push rod; 4. pull rod assembly; 41. locking gear seat; 42. rotating shaft; 43. locking gear sleeve; 44. pull rod; 45. pull handle; 46. reset spring; 47. stretching guide rod; 48. pull rope; 49. pull rope handle; 5. leveling roller assembly; 51. supporting frame; 52. buffer guide rod; 53. buffer spring; 54. scraper plate; 55. leveling roller; 56. transmission motor; 57. pulley A; 58. transmission belt; 59. pulley B. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1-3As shown, a concrete leveling device for road construction includes two groups of cart frames 1 that are horizontally opposite to each other. The middle parts of the brackets of the two groups of cart frames 1 are symmetrically installed with pull rod assemblies 4. The pull rod assembly 4 includes a locking gear seat 41 installed in the middle part of the bracket of the cart frame 1. The support center of the locking gear seat 41 is rotatably connected with a rotating shaft 42. A pull rod 44 is installed at the top of the shaft seat of the rotating shaft 42. A pull handle 45 is provided at the top of the arm of the pull rod 44, and a pull rod positioning mechanism that is locked with the locking gear seat 41 is provided inside the arm of the pull rod 44. The pull rod positioning mechanism includes a stretching guide rod 47 slidably connected to the bottom end of the arm of the pull rod 44 and a pull rope handle 49 installed at the top end of the arm of the pull rod 44. The bottom end of the arm of the stretching guide rod 47 is provided with a locking gear sleeve 43 that is locked and meshed with the locking gear seat 41, and the outer sleeve of the arm of the stretching guide rod 47 is provided The return spring 46 is pressed against the pull rod 44, and the top of the arm of the stretching guide rod 47 is connected with a pull rope 48 that passes through the pull rod 44 and is connected to the pull rope handle 49. When the pull rod 44 of the hand-held pull rod assembly 4 is used to pull the leveling device forward, the pull rope handle 49 can be pressed in advance to pull the pull rope 48 to contract, so that the locking tooth sleeve 43 at the bottom end of the arm of the stretching guide rod 47 is removed from the locking tooth seat 41 to release the locked state. Then, the pull rod 44 can be pushed up and down with the rotating shaft 42 as the axis to adjust the pull rod height. After adjusting to the appropriate height, it is only necessary to loosen the pull rope handle 49, and under the elastic force of the return spring 46, the locking tooth sleeve 43 at the bottom end of the stretching guide rod 47 is pulled to re-engage on the locking tooth seat 41 to form a locked positioning state, so that the pull rod assembly 4 maintains a suitable height for easy operation and use by different staff members.

[0025] A supporting caster 2 is installed at the bottom of the bracket of the cart frame 1. By using the supporting caster 2 as the roller of the leveling device, the pull rod assembly 4 can be pulled to drive the entire device to move, so as to perform the leveling process on the concrete pavement. While pulling forward, the excess concrete can be rolled forward by using the leveling roller assembly 5, and the forward pulling is more convenient and easy.

[0026] The top of the bracket of the two groups of trolley frames 1 is equipped with an electric push rod 3, and the telescopic end of the electric push rod 3 is fixedly connected to the leveling roller assembly 5. The leveling roller assembly 5 includes a support frame 51 installed on the telescopic end of the electric push rod 3, and the support frame 51 is rotatably connected to the leveling roller 55 inside the bracket, and a transmission motor 56 is installed at one end of the support frame 51. The transmission motor 56 and the leveling roller 55 are connected through a transmission belt 58. A pulley A57 is provided at the output end of the transmission motor 56, and a pulley B59 is provided at one end of the roller shaft of the leveling roller 55. 7 is connected to the pulley B59 through the transmission belt 58. When the concrete pavement is leveled, the transmission motor 56 is controlled to work, driving the pulley A57 to rotate, and the pulley B59 is driven to rotate through the intermediate transmission of the transmission belt 58, and then the leveling roller 55 is driven to rotate, and the roller pressure of the leveling roller 55 is promoted to rotate. On the one hand, the rotation thrust is used to roll the excess concrete forward, and on the other hand, the rotary roller pressure is used to perform roller-type leveling on the concrete pavement, which improves the leveling efficiency while reducing the forward control intensity of the leveling device.

[0027] A scraper plate 54 facing the roller surface of the leveling roller 55 is installed inside the support frame 51. A plurality of groups of buffer guide rods 52 fixedly connected to the scraper plate 54 are connected through the support plate surface of the support frame 51 along its truss direction, and a buffer spring 53 is sleeved on the outer side of the shaft of each group of buffer guide rods 52 for pressing against the support frame 51. The scraper plate 54 is an L-shaped structure, and the scraping edge of the scraper plate 54 fits with the roller surface of the leveling roller 55. During the leveling process of the concrete pavement, the scraper plate 54 always maintains elastic contact with the leveling roller 55 under the elastic connection combination of the buffer spring 53 and the buffer guide rod 52, and scrapes and discharges the concrete adhered to the leveling roller 55 after rolling and leveling, so that the leveling roller 55 always remains in a clean state, and the concrete pavement is smoothly leveled.

[0028] The working principle of the utility model is as follows: when the leveling device is used to level the concrete road surface, the locking adjustment and positioning of the rod positioning mechanism in the rod assembly 4 can be used to adjust the height of the rod of the rod assembly 4 to adapt to the use of different staff members, and then the leveling device is pulled to the road surface to be leveled, and the telescopic end of the electric push rod 3 is controlled to extend to push the leveling roller assembly 5 downward to keep it level with the concrete road surface, and then the transmission motor 56 is controlled to work, and the transmission combination of the pulley A57, the transmission belt 58, and the pulley B59 drives the leveling roller 55 to rotate, pushing the leveling roller 55 The roller rotates, on the one hand, using its rotational thrust to roll the excess concrete forward, and on the other hand, using its rotational roller to roller-level the concrete road surface. While leveling the concrete road surface, the scraper plate 54 always maintains elastic contact with the leveling roller 55 under the elastic connection combination of the buffer spring 53 and the buffer guide rod 52, and scrapes and discharges the concrete adhered to the leveling roller 55 after roller pressure and leveling, so that the leveling roller 55 is always kept in a clean state, and the concrete road surface is smoothly leveled. It is simple and convenient to operate, and it is more efficient in leveling the concrete road surface.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A concrete leveling device for road construction, characterized in that: It comprises two sets of cart frames (1) that are horizontally opposed to each other; The top ends of the brackets of the two groups of trolley frames (1) are both equipped with electric push rods (3), and the telescopic ends of the electric push rods (3) are fixedly connected to the leveling roller assembly (5); The leveling roller assembly (5) comprises a support frame (51) mounted on the telescopic end of the electric push rod (3), a leveling roller (55) being rotatably connected inside the support frame (51), and a transmission motor (56) being mounted on one end of the support frame (51), the transmission motor (56) being connected to the leveling roller (55) via a transmission belt (58), and a scraper plate (54) facing the roller surface of the leveling roller (55) being mounted inside the support frame (51); A pull rod assembly (4) is symmetrically installed in the middle of the brackets of the two groups of trolley frames (1).

2. A concrete leveling device for road construction according to claim 1, characterized in that: A pulley A (57) is provided at the output end of the transmission motor (56), a pulley B (59) is provided at one end of the roller shaft of the leveling roller (55), and the pulley A (57) and the pulley B (59) are connected to each other via a transmission belt (58).

3. A concrete leveling device for road construction according to claim 1, characterized in that: The support plate surface of the support frame (51) is connected to a plurality of groups of buffer guide rods (52) fixedly connected to the scraper plate (54) along the truss direction, and a buffer spring (53) is sleeved on the outer side of the shaft of each group of buffer guide rods (52) for pressing against the support frame (51).

4. A concrete leveling device for road construction according to claim 1, characterized in that: The scraper plate (54) is of an L-shaped structure, and the scraping edge of the scraper plate (54) and the roller surface of the leveling roller (55) are in contact with each other.

5. A concrete leveling device for road construction according to claim 1, characterized in that: A supporting caster (2) is installed at the bottom of the support of the trolley frame (1).

6. A concrete leveling device for road construction according to claim 1, characterized in that: The pull rod assembly (4) comprises a locking tooth seat (41) installed in the middle of the support of the trolley frame (1); the support center of the locking tooth seat (41) is rotatably connected to a rotating shaft (42); a pull rod (44) is installed at the top of the shaft seat of the rotating shaft (42); a pull handle (45) is provided at the top of the arm of the pull rod (44); and a pull rod alignment mechanism that is locked with the locking tooth seat (41) is provided inside the arm of the pull rod (44).

7. A concrete leveling device for road construction according to claim 6, characterized in that: The pull rod alignment mechanism comprises a stretching guide rod (47) slidably connected to the bottom end of the arm of the pull rod (44) and a pull rope handle (49) installed at the top end of the arm of the pull rod (44); the bottom end of the arm of the stretching guide rod (47) is provided with a locking tooth sleeve (43) which is locked and meshed with a locking tooth seat (41); and the outer side sleeve of the arm of the stretching guide rod (47) is provided with a return spring (46) which is pressed against the pull rod (44); and the top end of the arm of the stretching guide rod (47) is connected with a pull rope (48) which passes through the pull rod (44) and is connected to the pull rope handle (49).

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